| Entries |
| Document | Title | Date |
|---|
| 20080295807 | High Pressure Pump, in Particular for a Fuel Injection System Of an Internal Combustion Engine - The high pressure pump comprises a drive shaft ( | 12-04-2008 |
| 20080308071 | Feed Unit - A feed unit has a surge chamber | 12-18-2008 |
| 20090044783 | FUEL PUMP FOR A FUEL SYSTEM OF AN INTERNAL COMBUSTION ENGINE - The invention relates to a fuel pump for a fuel system of an internal combustion engine, having a housing and a housing cap joined to the housing. In order to create a fuel pump which in its operation generates little airborne sound, structure-borne sound (vibration amplitudes) and pulsations in a low-pressure region of the fuel pump, it is proposed that the housing cap has at least one damping element, which is embodied as a sandwich construction having at least a first cover layer, a second cover layer, and a damping connection layer disposed between them. The damping connection layer has a markedly higher elasticity and/or higher material damping than the two cover layers, which may be constructed of sheet metal or the housing cap itself. | 02-19-2009 |
| 20090071446 | FUEL SUPPLY PUMP AND TAPPET STRUCTURE BODY - Disclosed is a fuel supply pump including a tappet structure body having a roller that contacts a cam and a tappet body disposed with a roller housing portion in which the roller is housed, with a pressure adjusting member for dispersing load force being interposed between the tappet body and a plunger. The pressure adjusting member includes a concave portion in a center portion of a surface that faces the tappet body and contacts the tappet body at the peripheral portion of the concave portion. | 03-19-2009 |
| 20090071447 | VIRTUAL FUEL SENSOR FOR DUAL FUEL TANK APPLICATIONS - A method comprises detecting a status of a transfer pump for transferring fuel between a first fuel source and a second fuel source; receiving a fuel trim value and a vehicle operating parameter; and calculating a fuel composition of one of the first fuel source and second fuel source based on the fuel trim value, the transfer pump status and the vehicle operating parameter. A control module comprises a secondary pump transfer module detecting a status of a transfer pump for transferring fuel between a first fuel source and a second fuel source; and a fuel composition estimation module in communication with the secondary pump transfer module, receiving a fuel trim value and a vehicle operating parameter, and calculating a fuel composition of one of the first fuel source and second fuel source based on the fuel trim value, the transfer pump status, and the vehicle operating parameter. | 03-19-2009 |
| 20090095263 | Gearwheel mechanism - In a gearwheel mechanism for driving a secondary unit such as a fuel pump driven via the gear wheel mechanism by a primary unit, a driven gear mounted on the secondary unit is provided with a positioning element including sections covering teeth areas of the driven gear so that those sections cannot be engaged with a driving gear of the primary unit during mounting of the secondary unit, and in a pump having a gear provided with such a positioning element as wells as an internal combustion engine including a pump with a gear provided with a positioning element. | 04-16-2009 |
| 20090120411 | Machining method - A method of manufacturing a metal housing ( | 05-14-2009 |
| 20090126693 | Fuel System Comprising A Fuel Reserve Container And A Retaining Trough - Fuel system intended for a heat engine and comprising a fuel tank, a pipe for filling the tank and a pump for supplying the engine with fuel. The pump is supplied with fuel from a fuel reserve container, the fuel system additionally including a retaining trough independent of the reserve container, positioned so that the reserve container is supplied with fuel from the trough and having a wall defining a volume emerging at the upper part through an opening in the tank. The wall forms a continuous envelope separating the volume of the trough from the rest of the tank. | 05-21-2009 |
| 20090126694 | FUEL LIQUID AND VAPOR PRESSURE SENSOR - A combined liquid and vapor sensor assembly includes a body and a mounting portion for coupling the body to a fuel pump module flange that defines an interface between an interior and an exterior of a fuel tank. A liquid pressure sensor is housed in a recess in the body for sensing a liquid pressure of a fuel in the fuel tank, and a vapor pressure sensor is housed in the recess in the body for sensing a vapor pressure of a fuel vapor in the fuel tank. An electrical connector is coupled with the body for providing power to the liquid pressure sensor and the vapor pressure sensor. | 05-21-2009 |
| 20090126695 | Radial Piston Pump For Supplying Fuel At High Pressure To An Internal Combustion Engine - A radial piston pump for supplying fuel at high-pressure to an internal combustion engine has a compression chamber arranged in a displacement housing, a reciprocating piston arranged in a cylinder chamber, a suction valve connected to a fuel supply line and has a spring-loaded closure body, an intermediate piece, a threaded pin and a pressure valve which is connected to a fuel outlet line. The closing body of the suction valve is embodied as a valve end pad with the spring exerting a force on the front end thereof. The valve end pad has a closure collar and at least two channels that are distributed around the periphery and which adjoin the closure collar and a base plate. A stop plate comprising an additional base plate borders the closure collar of the valve end pad as an intermediate piece to which the threaded pin is connected. | 05-21-2009 |
| 20090159053 | Pumping element for a fluid pump and method - A pumping element for pressurizing a fluid within a fluid pump includes a plunger reciprocally disposed within a bore defined in a barrel. The plunger and barrel at least partially define a pressurization chamber into which fluid is pressurized. A flow path is defined between the plunger and the bore, the flow path permitting fluid to pass from the pressurization chamber during pressurization of fluid disposed therein. A collection chamber is formed between the plunger and the bore, the collection chamber being disposed adjacent to the bore and being part of a cooling circuit for the pumping element. A plurality of weep openings is defined in the barrel and is fluidly connected to the collection chamber. A reduced diameter portion of the barrel forms an annular reservoir that receives fluid from the weep openings. | 06-25-2009 |
| 20090188472 | LIFT PUMP SYSTEM FOR A DIRECT INJECTION FUEL SYSTEM - An economical method for controlling a lift pump operating as part of a direct injection fuel system is described. According to the method, the lift pump is operated at efficient operating conditions and then stopped until additional fuel is requested. | 07-30-2009 |
| 20090266341 | Fuel delivery unit for a motor vehicle - A fuel delivery unit for a motor vehicle, wherein a swirl pot has a base formed from an upper part and a lower part, and an outer wall connected to the base, forming a seal. The upper part and the lower part bound fuel-delivering regions of a suction jet pump and of a section of a feed line. This arrangement allows the fuel delivery unit to be produced at particularly low cost. | 10-29-2009 |
| 20090272364 | RADIAL PISTON PUMP FOR SUPPLYING FUEL AT HIGH PRESSURE TO AN INTERNAL COMBUSTION ENGINE - A radial piston pump ( | 11-05-2009 |
| 20090308356 | Feed Unit for Feeding Fuel - A feed unit for feeding fuel has a housing formed integrally with the casing of a swirl pot, the housing comprising a fine filter. The fine filter is configured open toward one side and is closed by a cover. The cover is formed integrally with a base plate sealing the casing of the swirl pot. As a result, the feed unit has a particularly low number of components to be assembled and can be produced in a particularly cost-effective way. | 12-17-2009 |
| 20100024778 | Fuel Pumping System - A fuel pumping system comprises a high pressure pump having a drive input, a drive gear driven for rotation, in use, by the drive input, an idler gear driven by the drive gear, and an output gear driven by the idler gear, wherein the output gear is arranged to drive a rotor of an electrical generator and the idler gear is arranged to drive a rotor of a low pressure pump. | 02-04-2010 |
| 20100024779 | FUEL SUPPLY PUMP - A fuel supply pump includes a housing, a shaft in a case, a cam in the case formed eccentrically with respect to the shaft to rotate with the shaft, a tappet on an outer circumferential side of the cam movable in a vertical direction, and a plunger reciprocating with the tappet to pressurize fuel in a chamber. The tappet includes a roller and a supporting member rotatably supporting the roller in its thrust direction. The roller slidingly contacts outer circumference of the cam. The member includes an end face supporting the plunger, a surface at its end on an opposite side from the face and slidingly contacting outer circumference of the roller, and an inner wall supporting the roller in the thrust direction. The roller includes a middle section slidingly contacting the surface along its longitudinal direction, and a contact part at both ends of the section contacting the wall. | 02-04-2010 |
| 20100043759 | FUEL PUMP AND A METHOD FOR CONTROLLING A FUEL PUMP - A fuel pump and a method for controlling a fuel pump. At least two pumps run at a mutual phase displacement such that they are able to receive fuel during different periods of time. A control unit causes a valve, which is only settable in an open position and a closed position, to lead a desired amount of fuel to the respective pump. The control unit places the valve in the open position for a variable portion of the periods so that an individually controlled amount of fuel is led to the respective pump during those periods. Maintenance of good efficiency of the fuel pump and low noise emissions is thus made possible in operating situations where the fuel pump delivers a reduced amount of fuel. | 02-25-2010 |
| 20100050994 | High-Pressure Fuel Supply Circuit - A high-pressure fuel supply circuit, which supplies fuel in a fuel tank to injectors of an internal combustion engine, may includes a fuel pump that is employed so as to feed the fuel in the fuel tank with pressure to the injector, wherein one or more fuel pumps may be employed so as to improve a compression ratio of the fuel; a separator provided with a selective check valve so as to separate air from the fuel supplied by the fuel pump; and an injection pump receiving the fuel from the separator, compressing it, and feeding it with pressure to the injector. | 03-04-2010 |
| 20100059024 | VEHICLE FUEL SUPPLY DEVICE AND FUEL FILTER STRUCTURE - Secondary fuel filter ( | 03-11-2010 |
| 20100101538 | Low Noise Fuel Pump With Variable Pressure Regulation - An engine assembly may include an engine structure defining a combustion chamber, a fuel injector in fluid communication with the combustion chamber, a fuel supply and a fuel pump assembly. The fuel pump assembly may include a housing, a reciprocating member, and a solenoid valve assembly. The housing may define an inlet in fluid communication with the fuel supply, an outlet in fluid communication with the fuel injector, and a bypass passage. The reciprocating member may be located within the housing to define a compression chamber in fluid communication with the inlet, the outlet, and the bypass passage. The solenoid valve assembly may include a valve member located within the bypass passage and displaceable between open and closed positions to selectively provide fluid communication between the compression chamber and the fuel supply during a compression stroke of the reciprocating member. | 04-29-2010 |
| 20100116253 | CONTROLLER FOR FUEL PUMP - An integrated value of discharge quantity of a fuel pump is used as a parameter evaluating a pressure loss of a fuel filter. A target discharge quantity is obtained by correcting a fuel quantity required by an engine with a filter pressure loss correction amount corresponding to an integrated value of the discharged quantity. A target rotational speed of the fuel pump is computed based on the target discharge quantity, so that the target rotational speed is corrected in accordance with the pressure loss of the fuel filter. Alternatively, the target rotational speed may be corrected in accordance with a deterioration degree of the fuel pump. | 05-13-2010 |
| 20100132675 | MULTI-PUMP FUEL SYSTEM AND METHOD - A vehicular fuel system includes a suction pump having an inlet and an outlet, a priming pump having an inlet and an outlet, a valve and a fluid conduit assembly having a first port coupled to the outlet of the priming pump, a second port coupled to the inlet of the suction pump, and a third port coupled to the valve. The fluid conduit assembly and the valve are configured such that when the priming pump is operated, fluid flows from the outlet of the priming pump, through the first port and second ports, and into the inlet of the suction pump and when the suction pump is operated, fluid flows through the valve and the third and second ports, and into the inlet of the suction pump. | 06-03-2010 |
| 20100163005 | HIGH-PRESSURE PUMP FOR DELIVERING FUEL WITH AN IMPROVED DESIGN OF THE BEARING ARRANGEMENT FOR THE SUPPORT OF THE CAM SHAFT - The present invention relates to a high-pressure pump, particularly for delivering fuel for a common rail fuel injection system, having a pump body in which at least one cam drive having a cam shaft is received. The cam shaft is pivotally supported about a cam shaft axis in the pump body and/or in a flange body by at least one bearing arrangement. The bearing arrangement includes a radial bearing bush extending in the direction of the cam shaft axis, and an axial bearing washer, which is integrally formed on the radial bearing bush. The axial bearing washer extends in a radial extension direction of less than 90 degrees relative to the cam shaft axis in the non-installed state. The radial extension direction is directed toward the radial bearing bush and can be brought into an axial bearing plane extending at an angle of 90 degrees to the cam shaft axis in the installed state by elastic deformation of the axial bearing washer. | 07-01-2010 |
| 20100170479 | FUEL PUMP FOR INTERNAL COMBUSTION ENGINE - A combination dynamic balancer and fuel pump for an internal combustion engine includes a common housing having at least one balancer shaft and a fuel pump, with the fuel pump having the pumping element mounted directly within a working chamber formed within the housing for the balancer shaft and fuel pump. A pumping element may include a reciprocating or a rotary pumping element. | 07-08-2010 |
| 20100186722 | FUEL PUMP TIMING TO REDUCE NOISE - One embodiment is a fuel system for an internal combustion engine including a fuel pump having a fuel pump gear operable to drive the fuel pump to pressurize fuel. The fuel pump gear is offset relative to engine top dead center by a predetermined angle to reduce a sound or noise. The offset can be determined by selecting the minimum sound produced over a range of offsets or operating conditions. | 07-29-2010 |
| 20100192921 | FUEL PUMP, IN PARTICULAR FOR A FUEL SYSTEM OF A PISTON ENGINE - A fuel pump according to the invention includes a housing and a part, which is a moving part during operation and which bears on a housing region at least indirectly. It is proposed that the fuel pump includes a coating which is applied to the housing region on a side of the housing region which faces towards the moving part, and that the coating is composed of a plastic. | 08-05-2010 |
| 20100236529 | FUEL INJECTION PUMP WITH AN IMPROVED DRIVE CLUTCH - The invention relates to a fuel injection pump for an internal combustion engine, which fuel injection pump, for the drive of the same, is connected in a torque-transmitting manner through a clutch unit to a drive input member. The clutch unit has a claw hub which is arranged on the drive input member and is axially fixed and is driven in rotation. The rotational movement can be transmitted to a reciprocating and rotating pump member. The claw hub and the pump member have respective claws which are aligned counter to one another and which have lateral claw faces between which is arranged a star-shaped and/or tongue-groove-like transmission body which, for the transmission of the torque, adjoins the respective claw faces. The claw faces are formed with an outwardly arched, spherical surface in order to create at least one defined zone of force introduction from the transmission body into the claw face, such that the stresses which occur in the claw as a result of the force transmission can be reduced. In this way, a fuel injection pump for an internal combustion engine with a clutch unit is created which permits a long service life while at the same time permitting the transmission of large torques, and at the same time has a simple structural design. | 09-23-2010 |
| 20100252004 | INTERNAL COMBUSTION ENGINE THAT CAN BE OPERATED WITH DIFFERENT TYPES OF LIQUID FUEL - The invention relates to an internal combustion engine that can be operated with different types of liquid fuel, which includes a device that can determine the current type of liquid fuel used. The invention further relates to a method for operating such an internal combustion engine. According to the invention, at least two different paths are provided, by which the liquid fuel can reach the combustion chamber of the internal combustion engine. The internal combustion engine comprises a control and regulation device, controlling or regulating the use of the different paths as a function of the type of the liquid fuel that was determined. | 10-07-2010 |
| 20100258090 | Apparatus For Reducing Fuel Waxing - A fuel filter for an internal combustion engine is provided comprising a fuel conduit configured to transport fuel from a fuel tank to an internal combustion engine. A fuel filter manifold has an inlet and an outlet for fluid communication with the fuel conduit. A fuel filter housing is associated with the fuel filter manifold and is configured to receive fuel from and dispense fuel to the fuel filter manifold. A filter element is disposed within the fuel filter housing between the inlet and the outlet and is configured to filter fuel passing through the fuel filter housing. An electromagnetic transducer is associated with the fuel filter and is configured to emit high frequency waves operable on the fuel to reduce, via ultrasonic cavitation, wax crystals suspended in the fuel. | 10-14-2010 |
| 20100258091 | Apparatus For Reducing Fuel Waxing - A fuel filter is configured to filter fuel for an internal combustion engine and is associated with an electromagnetic wave generator configured to emit high frequency electromagnetic waves operable on the fuel to heat and thereby melt wax crystals suspended in the fuel. | 10-14-2010 |
| 20100269794 | FUEL PRESSURE REGULATION SYSTEM - In a fuel pressure regulating system for an internal combustion engine, having a pressure accumulator storing fuel under pressure and feeding injectors providing the combustion chambers of the internal combustion engine with fuel, a high-pressure pump feeding a fuel mass flow into the pressure accumulator, a first valve for throttling the fuel mass flow, a second valve by means of which fuel can be discharged from the pressure accumulator, and a control unit for actuating the valves, the control unit determines a fuel mass flow required by the pressure accumulator depending on a prescribed target pressure in the pressure accumulator, divides the determined fuel mass flow into a partial mass flow fed in by the first valve and discharged by the second valve, and actuates the valves according to the partial mass flows. | 10-28-2010 |
| 20100269795 | PUMP, IN PARTICULAR HIGH-PRESSURE FUEL PUMP - The invention relates to a pump, particularly a high-pressure fuel pump, having a drive shaft, which includes a section that is eccentric to the rotational axis thereof and on which a ring is rotatably supported. The pump has at least one pump piston, which is directly supported on the ring via the piston base thereof, or via a support element and is driven in a stroke movement upon the rotational movement of the drive shaft. The ring has an at least approximately planar contact surface in the region of the support of the piston base or of the support element, and the support surface of the piston base or of the support element on the ring is greater than the cross-sectional surface of the shaft of the pump piston. The extension of the support surface of the piston base or of the support element in the tangential direction to the rotational axis of the drive shaft is greater than the extension thereof in the direction of the rotational axis of the drive shaft. | 10-28-2010 |
| 20100282218 | DEVICE FOR REDUCING MAINLY THE CARBON DIOXIDE GENERATED BY ANY INTERNAL COMBUSTION ENGINE AND BY INDUSTRIAL ACTIVITY - A device includes an assembly including a tank ( | 11-11-2010 |
| 20100294248 | Carburetor with acceleration pump - In the carburetor | 11-25-2010 |
| 20110011372 | FLUID FILTER WITH INTEGRATED TEMPERATURE REGULATION - A fluid filter module with a filter housing is provided with an integrated and internally mounted thermostatic fluid regulator valve. The regulator valve is equipped with a thermostatic actuator member configured to sense and regulate a mix temperature within the filter housing. The regulator valve is configurable as a separate component installable into the filter housing. | 01-20-2011 |
| 20110048384 | BEARING ARRANGEMENT FOR A PUMP - A fluid pump is disclosed. The fluid pump may comprise a housing, a tapered bearing, a drive shaft, a first fluid chamber, and a second fluid chamber. The housing defines a bore. The tapered bearing is received within the bore of the housing. The drive shaft is received within the tapered bearing. The first fluid chamber is defined between the housing and the drive shaft on a first side of the tapered bearing. The second fluid chamber is defined between the housing and the drive shaft on a second side of the tapered bearing. The second fluid chamber is separated from the first fluid chamber by the tapered bearing. The housing includes a fluid passage fluidly coupling the first fluid chamber and the second fluid chamber. | 03-03-2011 |
| 20110073078 | HIGH-PRESSURE FUEL PUMP - The invention relates to a high-pressure fuel pump for a fuel injection system of an internal combustion engine, having a pump housing and with at least one pump element of a piston which is driven by a cam which interacts with a roller. The free ends of the roller are bounded by two side run-on surfaces which come into contact with mating surfaces during the operation of the high-pressure fuel pump. In order to provide a high-pressure fuel pump which can be produced cost-effectively and has a long service life, the side run-on surfaces are designed as circular ring disc surfaces and, in a central internal region, are released from contact with the mating surfaces. | 03-31-2011 |
| 20110108007 | FUEL PUMP WITH REDUCED SEAL WEAR FOR A DIRECT INJECTION SYSTEM - A fuel pump for a direct injection system having: at least one pumping chamber, a piston which is slidingly mounted inside the pumping chamber in order to cyclically vary the volume of the pumping chamber, an intake duct connected to the pumping chamber and regulated by an inlet valve, a delivery duct connected to the pumping chamber and regulated by a one-way valve that only allows outgoing fuel flow from the pumping chamber, and an annular seal, which is placed in a seat made below the pumping chamber around a lower portion of the piston and has the function of preventing fuel leakage along the side wall of the piston. | 05-12-2011 |
| 20110114064 | HIGH-PRESSURE FUEL SUPPLY APPARATUS FOR INTERNAL COMBUSTION ENGINE - A discharge valve ( | 05-19-2011 |
| 20110139125 | Piston Pump - A piston pump, especially for supplying high-pressure fuel to a direct-injection internal combustion engine, including a pump housing ( | 06-16-2011 |
| 20110146626 | HIGH PRESSURE FUEL PUMP - A high pressure fuel pump ( | 06-23-2011 |
| 20110168133 | APPROACH FOR CONTROLLING FUEL FLOW WITH ALTERNATIVE FUELS - Fuel is evacuated from a fuel rail by directing liquid fuel from the fuel rail to a fuel tank and then by directing gaseous fuel from the fuel rail to a fuel vapor canister. | 07-14-2011 |
| 20110209689 | MOTOR VEHICLE FUEL SYSTEM HAVING MULTIPLE FUEL TANKS - A fuel system ( | 09-01-2011 |
| 20110232610 | High Pressure Fuel Pump Control System for Internal Combustion Engine - A high pressure fuel pump control system for an internal combustion engine includes a fuel injection valve provided in a fuel common rail and a high pressure fuel pump for feeding fuel by pressure to the fuel injection valve. The high pressure fuel pump includes a pressurized chamber, a plunger for pressurizing fuel in the pressurized chamber, a discharge valve provided in a discharge passage, an intake valve provided in an intake passage, and an actuator for operating the intake valve. The control system includes a means for calculating a drive signal for the actuator to make a discharge amount or pressure of the high pressure fuel pump variable. The means reduces pressure in the common rail by opening the discharge valve to return the fuel in the fuel common rail to the pressurized chamber when a requirement for reducing the pressure in the fuel common rail is made. | 09-29-2011 |
| 20110303195 | Single piston pump with dual return springs - Pump piston seizures caused by excessive side loads produced by the uneven loading of a large piston return spring are prevented by separating the tappet return function from the piston return function, thereby minimizing the spring force acting on the piston. Separate and distinct biasing means perform the respective functions. Preferably, a stronger, heavier load outer spring is mounted between the pump body and the tappet, such that it imparts no load and therefore no side loads to the pumping piston. A weaker, lighter load inner spring imparts less side load to the pumping piston than a conventional piston return spring, because the inner spring need not carry any tappet load. During both the pumping and charging strokes of the piston, the piston return spring can assist the tappet return spring, but the tappet return spring does not assist the piston return spring. | 12-15-2011 |
| 20110303196 | FUEL SUPPLYING APPARATUS FOR INTERNAL COMBUSTION ENGINE - A fuel supplying apparatus is disclosed that suppresses intrusion of oil mist into a negative pressure introducing inlet of an automatic cock and that, thereby, improves the degree of freedom of disposition. The negative pressure introducing inlet of the automatic cock is connected to a crankcase through a negative pressure communication path. The automatic cock is opened by a negative pressure generated in the crankcase and, thereby, a fuel supply path is opened that is for supplying fuel from a fuel tank to an internal combustion engine. The negative pressure communication path communicates with the air cleaner through a purge path that branches from the negative pressure communication path at a halfway point of the negative pressure communication path. The point at which the purge path branches from the negative pressure communication path is set to be at the lowest position of the negative pressure communication path to be able to collect the oil mist intruding from the crankcase. | 12-15-2011 |
| 20110308500 | CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE - A control apparatus and control method is provided for an internal combustion engine that includes a vaporized fuel tank in which vaporized fuel is stored, and a normally-closed vaporized fuel supply valve that opens and closes a connecting portion between the vaporized fuel tank and a surge tank. This apparatus and method produce vaporized fuel by injecting fuel into the tank while the vaporized fuel supply valve is closed while the engine is operating, then open the vaporized fuel supply valve at engine startup and supply the vaporized fuel stored in the tank to the surge tank. If there is no vaporized fuel remaining in the vaporized fuel tank when the engine stops, vacuum is generated in the vaporized fuel tank by temporarily opening the vaporized fuel supply valve before the engine stops. Vaporized fuel is then produced by injecting fuel into the vaporized fuel tank in this vacuum state. | 12-22-2011 |
| 20120006302 | METHOD FOR CONTROLLING THE PRESSURE IN A HIGH-PRESSURE FUEL RESERVOIR OF AN INTERNAL COMBUSTION ENGINE - A method for controlling the pressure in a high-pressure fuel reservoir of an internal combustion engine; fuel from a presupply pump being supplied to a quantity control valve; and the fuel metered by the quantity control valve being transported by a high-pressure pump into the high-pressure fuel reservoir; the pressure in the high-pressure fuel reservoir being controlled by controlling the quantity control valve; and the supply pressure in front of the high-pressure pump also being considered in the control. | 01-12-2012 |
| 20120006303 | PULSATION DAMPER - A pulsation damper mounted in a fuel chamber ( | 01-12-2012 |
| 20120055450 | STARTING DEVICE AND CARBURETOR USING SAME - A starting device for feeding a quantity of fuel from the fixed-quantity fuel chamber to an intake passage during start-up having a manually operated primary pump for suctioning/pumping fuel and arranged on a fuel introduction path connected along a fuel-feeding path; and a fixed-quantity fuel chamber for temporarily storing fuel delivered from the primary pump. An internal wall of the fixed-quantity fuel chamber undergoes elastic displacement, allowing its internal capacity to expand/shrink within a predetermined range; the fixed-quantity fuel chamber is connected to a fuel delivery path that communicates with the intake passage side and has a manually operated open/close valve; the valve is opened in a state in which, due to the primary pump being operated, the fixed-quantity fuel chamber is filled with a predetermined quantity of fuel while enlarging its internal capacity, whereby it shrinks due to an elastic contraction force and the fuel. | 03-08-2012 |
| 20120060799 | VEHICLE FUEL SUPPLY DEVICE - In an upright state where a vehicle is supported by a main stand, or and a tilted state where the vehicle is supported by a side stand, an inflow port of a fuel filter unit is located at a position higher than an outflow port. The fuel filter unit and the upstream side filter pipe are installed in the vehicle so that the upstream side filter pipe is arranged at a higher position as it goes toward the upstream side. | 03-15-2012 |
| 20120080013 | HIGH PRESSURE PUMP AND TAPPET ASSEMBLY - The invention relates to a high pressure pump for a fuel injection device of an internal combustion engine, comprising at least one pump element having a pump piston delimiting a pump working chamber, wherein between the pump piston and a rotationally driven drive shaft of the high pressure pump, a tappet assembly having a tappet body and a roller shoe pressed into a receptacle of the tappet body is provided, wherein the tappet body comprises a centering guide for pressing in the roller shoe. The invention further relates to a tappet assembly for a high pressure pump for a fuel injection device of an internal combustion engine comprising a tappet body and a roller shoe pressed into a receptacle of the tappet body, wherein the tappet body comprises a centering guide for pressing in the roller shoe. | 04-05-2012 |
| 20120118271 | Method and Control Apparatus for Controlling a High-Pressure Fuel Supply Pump Configured to Supply Pressurized Fuel to an Internal Combustion Engine - The present invention relates to a method and an apparatus for controlling a high-pressure fuel supply pump configured to supply pressurized fuel to an internal combustion engine, with a solenoid-actuated intake valve being configured to be biased into a first direction towards a first stop position of the intake valve by means of a biasing force and being configured to be displaced against the biasing force into a second direction opposite to the first direction towards a second stop position of the intake valve by means of magnetic force and to be kept at the second stop position by means of magnetic force. The method includes applying control current to the solenoid-actuated intake valve for displacing the intake valve into the second direction to the second stop position and for keeping the intake valve at the second stop position during a first time period by means of magnetic force. | 05-17-2012 |
| 20120138021 | SOLENOID VALVE CONTROL METHOD AND HIGH PRESSURE FUEL PUMP OF GDI ENGINE - A solenoid valve control method for a high pressure fuel pump of GDI engine includes supplying peak current for closing a solenoid valve during a predetermined peak current supply period and supplying hold current for holding the solenoid valve during a predetermined hold current supply period after the predetermined peak current supply period. The solenoid valve control method for a high pressure fuel pump of GDI engine may reduce impact of closing/opening of a solenoid valve. | 06-07-2012 |
| 20120145130 | Temperature Based Fuel Management in a Vehicle Fuel System - A vehicle fuel system for use in a vehicle having an engine. The system includes a fuel tank having a fuel pump module area and a bulk area, and a fuel pump mounted in the fuel pump module area, having an inlet and an outlet. A thermostatic valve has a fuel inlet connected to a return fuel line from the engine, a first outlet and a second outlet, with the valve directing fuel through the first outlet when the temperature is below a threshold and directing fuel through the second outlet when the temperature is above the threshold. A cold fuel line connects to the first outlet of the valve and directs fuel to the fuel pump inlet, and a warm fuel line connects to the second outlet of the valve and directs fuel into the bulk area of the fuel tank away from the fuel pump. | 06-14-2012 |
| 20120145131 | FUEL SUPPLY PUMP - A leak recovery groove is formed in a slide clearance between a slidable surface of a cylinder body and a slidable surface of a plunger to recover leaked fuel, which is leaked from a pressurizing chamber. A leak recovery groove direct communication passage is branched from a supply passage, which supplies fuel to the pressurizing chamber, and is connected to the leak recovery groove without passing through the pressurizing chamber to supply the fuel from the supply passage to the leak recovery groove. | 06-14-2012 |
| 20120180764 | High Pressure Fuel Supply Pump - In a high pressure fuel supply pump for transmitting rotation of a cam to a reciprocating plunger via a tappet and a retainer, a diametric force acting on the plunger is reduced. The pump includes the retainer disposed on the plunger and a return spring exerting an urging force on the retainer in a direction of the tappet. A clearance between a plunger leading end and a tappet bottom surface opposed thereto is set to be greater than a clearance between a retainer bottom surface and the tappet bottom surface opposed thereto, and a clearance between a retainer inside diameter section and a plunger peripheral surface section opposed thereto is set to be greater than a clearance between a retainer outside diameter section and a tappet inner wall opposed thereto. | 07-19-2012 |
| 20120186559 | FUEL PUMP - First and second recessed portions are respectively formed on first and second wall surfaces of a cam chamber, in order that a plunger head and a coil spring would not come in touch with the first and second wall surfaces even in such a virtual situation. In the virtual situation, it is supposed that the plunger head would be separated from a plunger, the plunger head remains in contact with a contact surface of a cam ring so that the plunger head would not move relative to the contact surface, and a cam member would be continuously rotated. | 07-26-2012 |
| 20120186560 | HOMOGENIZING FUEL ENHANCEMENT SYSTEM - A homogenizing fuel enhancement system involves at least one circulation loop existing outside of the injection system for continuously circulating and maintaining the homogeneity of a multi-fuel mixture apart from any demands by or delivery to the engine's injection system (whether mechanical injection or a common rail), and at least one infusion tube configured within the at least one circulation loop for providing a volumetric expansion wherein the fuel mixture is infused and thereby rendered more homogeneous. | 07-26-2012 |
| 20120204840 | ENGINE - An engine includes a crank chamber in which pressure fluctuation occurs and a carburetor including a diaphragm fuel pump. The diaphragm fuel pump includes a pump chamber configured to suck in and eject fuel and a diaphragm chamber to which a pressure that drives the pump chamber is supplied. The diaphragm chamber and the crank chamber communicate with one another in a state in which a negative pressure is created in the crank chamber. | 08-16-2012 |
| 20120247429 | FLEXIBLE FUEL MODULE PROTECTED UMBRELLA VALVE - A fuel pump module for a vehicle includes a reservoir having a longitudinal axis. An aperture is arranged within a bottom surface of the reservoir. The aperture has a plurality of vanes extending towards a central ring. An umbrella valve having an elongated stem is movably secured within the central ring of the aperture. The elongated stem is movable between a first position completely overlaying the aperture to a second position at a distance from the aperture. A suction filter is located within the reservoir at the bottom surface thereof. The suction filter has an undersurface sized for receipt of the umbrella valve in both the first and second positions. | 10-04-2012 |
| 20120260891 | High Pressure Fuel Pump For An Internal Combustion Engine And Lubrication Strategy Therefor - An internal combustion engine includes an engine block defining at least one row of cylinders extending from a first end toward a second end. A flywheel housing is attached to the first end of the engine block and includes a pump engagement face having a first pump lubrication supply port opening therethrough. A high pressure fuel pump includes a flywheel housing engagement face having a second pump lubrication supply port opening therethrough. The pump engagement face of the flywheel housing abuts the flywheel housing engagement face of the high pressure fuel pump such that the first pump lubrication supply port and the second pump lubrication supply port are in fluid communication. | 10-18-2012 |
| 20120279478 | FUEL FILTER ADAPTER - An adapter for retrofitting a fuel control system. The adapter has an outlet port and an inlet port for connecting to an external fuel system. The adapter replaces a standard fuel filter and fuel filter bowl. | 11-08-2012 |
| 20130000608 | RESERVOIR FOR FUEL TANK - Provided is a reservoir for a fuel tank not including a pump and capable of allowing fuel to be smoothly transferred by effectively blocking a solidification material when solidification occurs in the fuel in a low temperature environment. | 01-03-2013 |
| 20130068201 | Modular Gear Case for Driving Accessories Associated With an Internal Combustion Engine - A modular gear case assembly for an internal combustion engine is disclosed that includes a plate removably coupled to the block of the engine with a through hole in the plate through which an end of the crankshaft of the engine extends. The gear case is coupled to the plate and includes: a central gear that couples with the end of the crankshaft, a first interconnecting gear that meshes with the central gear, a second interconnecting gear that meshes with the central gear, a first side gear that meshes with the first interconnecting gear, a second side gear that meshes with the second interconnecting gear, a housing in which the gears are disposed, and a cover that sealingly couples with the housing. | 03-21-2013 |
| 20130098338 | FUEL PUMP AND FUEL SUPPLY SYSTEM OF INTERNAL COMBUSTION ENGINE - A fuel pump which can suppress fuel bubbles from being sucked into a fuel pressure chamber, and can achieve a stable fuel pressure property. The fuel pump has a pump body formed with a suction passage and a pump operation chamber, and a pressure pump mechanism to pressurize and discharge fuel. The pump body has a lower side wall portion and an upper side wall portion respectively at the vertically lower and upper sides of the inner wall portion forming a suction gallery chamber partly forming the suction passage. The pressure pump mechanism has a valve retaining member having an insertion portion inserted into the suction gallery chamber. The insertion portion has internal suction inlets through which the fuel is sucked from the suction gallery chamber into the pump operation chamber, the internal suction inlets being positioned in the intermediate height area in the suction gallery chamber. | 04-25-2013 |
| 20130098339 | FUEL PUMP MODULE FOR VEHICLE HAVING EXCELLENT FILTERING EFFICIENCY - Provided is a fuel pump module for a vehicle includes: a flange assembly positioned at a top portion of a fuel tank; a reservoir body assembly positioned at an inner bottom portion of the fuel tank; and a guide rod connecting the flange assembly and the reservoir body assembly to each other, wherein the reservoir body assembly includes: a fuel pump forcibly supplying fuel in the fuel tank to an engine; and a filter having a column shape in which it includes a hollow having the fuel pump positioned therein, installed in a form in which it is inserted into a case forming an appearance of the reservoir body assembly and having the fuel pump installed therein, and installed to allow the fuel before passing through the fuel pump to pass therethrough, thereby filtering foreign materials included in the fuel. | 04-25-2013 |
| 20130233283 | BIMETALLIC THERMOSTATIC FLOW VALVE FOR DIESEL FUEL SYSTEMS - A fuel system for a diesel engine is provided that includes a fuel supply tank module for storing fuel. The fuel supply tank module includes a fuel pump module reservoir which has an in-tank low pressure lift pump and a bimetallic thermostatic flow valve. The fuel system also includes a fuel filter module for filtering fuel pumped from the fuel supply tank module, a high pressure pump for pumping fuel from the fuel filter module, a diesel engine for receiving fuel from the high pressure pump, and a fuel return line for returning fuel to the bimetallic thermostatic flow valve. The bimetallic thermostatic flow valve includes a bimetallic element in thermal communication with the returning fuel. The bimetallic element deflects in response to the thermal communication so that returning fuel flows to at least one of the fuel pump module reservoir and the in-tank low pressure lift pump. | 09-12-2013 |
| 20130233284 | HIGH-PRESSURE FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE WITH DIRECT INJECTION - A high-pressure fuel pump for an internal combustion engine with direct injection of fuel into at least one combustion chamber of the internal combustion engine is provided. The high-pressure fuel pump includes a low-pressure connection for low-pressure fuel, wherein the low-pressure connection supplies low-pressure fuel to the high-pressure fuel pump, a low-pressure fuel supply chamber, a pump element and a high-pressure connection for discharging fuel from the high-pressure fuel pump. The low-pressure connection, the low-pressure fuel supply chamber, the pump element, and the high-pressure connection are provided in succession in a flow direction of the fuel. A medium-pressure fuel connection opens into a medium-pressure fuel supply chamber for supplying medium-pressure fuel to the high-pressure fuel pump. A fuel switching valve selectively connects the low-pressure fuel supply chamber or the medium-pressure fuel supply chamber in a fluid-conducting manner to the pump element. | 09-12-2013 |
| 20130263825 | FUEL SUPPLY DEVICE - A device capable of supplying an internal combustion engine with fuel while improving the utilization rate of vaporized fuel. A temporary transition from a third state (primary recovery path FL | 10-10-2013 |
| 20140014073 | DEACTIVATABLE FUEL PUMP FOR SUPPLYING SUCTION JET PUMPS - A system for supplying fuel to an internal combustion engine. The system comprises a first fuel pump, which is designed to deliver fuel from a reservoir to the internal combustion engine. The system furthermore comprises a suction jet pump which is designed to fill the reservoir with fuel. In addition, the system comprises a second fuel pump which is designed to operate the suction jet pump. The system furthermore comprises a control unit which is designed to operate the second fuel pump if a fuel fill level falls below a predefinable threshold value. | 01-16-2014 |
| 20140020662 | VEHICLE OIL PUMP - A vehicle oil pump having a first member and a second member relatively rotatable around one axial center such that one of the first member and the second member is inserted in an inner circumferential side of the other, includes: a slider member interposed between the first member and the second member in a direction orthogonal to the one axial center, the slider member being relatively immovable in circumferential direction around the one axial center with respect to the first member and slidable in direction parallel to the one axial center, the vehicle oil pump being configured such that a cam groove being formed in a circumferential surface of the second member facing the first member, a projecting portion disposed on the slider member being fitted in the cam groove, and the cam groove causing the slider member to reciprocate in the one axial center direction in association with rotation of the slider member relative to the second member around the one axial center, the second member being formed with a plurality of the cam grooves, and the vehicle oil pump further comprising a cam groove switching mechanism configured to switch the cam groove in which the projecting portion of the slider member fitted from the plurality of the cam grooves. | 01-23-2014 |
| 20140026862 | FUEL SUPPLY DEVICE AND OUTBOARD MOTOR - A fuel supply device that supplies fuel from an external tank to an engine includes a fuel injection, an internal tank, a first pipe, a second pipe, a first pump, a fuel supply quantity detection device, and a control device. The internal tank stores fuel to be delivered to the fuel injection device. The first pipe is linked to the internal tank and delivers fuel from the external tank to the internal tank. The second pipe is linked to the fuel injection device and delivers fuel from the internal tank to the fuel injection device. The fuel supply quantity detection device is attached to the first pipe and detects a quantity of fuel supplied from the external tank via the first pipe to the internal tank. The control device implements a predetermined control when the quantity of fuel detected by the fuel supply quantity detection device is below a threshold. | 01-30-2014 |
| 20140026863 | ENGINE - An engine includes: a piston; a carburetor having a diaphragm fuel pump, the diaphragm fuel pump including a pump chamber configured to suck and discharge fuel and a diaphragm chamber to which a pressure to drive the pump chamber is applied; and a communicating passage configured to connect between the diaphragm chamber and a negative pressure part in which a negative pressure is created due to movement of the piston. A flowback prevention part is formed in the communicating passage to allow fluid to move only in on direction from the diaphragm chamber to the negative pressure part. | 01-30-2014 |
| 20140076285 | METHOD AND SYSTEM FOR FUEL VAPOR CONTROL - Methods and systems are provided for reducing fuel vapor generation from a fuel tank in a hybrid vehicle. A layer of gel-foam fire retardant is layered over the surface of fuel in the fuel tank. In response to the layer being below a fuel level in the fuel tank, fuel pump operation may be automatically disabled. | 03-20-2014 |
| 20140116396 | CRYOGENIC FUEL SYSTEM HAVING A PRIMING CIRCUIT - A cryogenic fuel system having a priming circuit for a machine is disclosed. The fuel system may have a tank, configured to hold a cryogenic fluid, and a pump. A first passage may connect the tank and the pump, and a second passage may be configured to hold a cooling fluid and be located to cool the first passage. | 05-01-2014 |
| 20140165970 | METHOD AND SYSTEM FOR CONTROLLING LOW PRESSURE FUEL PUMP OF GASOLINE DIRECT INJECTION ENGINE - A method of controlling a low pressure fuel pump of a gasoline direct injection (GDI) engine includes receiving failure related information of a high pressure fuel pump, boosting, if the high pressure fuel pump is failed based on the failure related information of the high pressure fuel pump, a fuel pressure of the low pressure fuel pump to a setting pressure and controlling, if the high pressure fuel pump is not failed, the fuel pressure of the low pressure fuel pump based on a measured fuel pressure with respect to a target fuel pressure of the high pressure fuel pump or a change of a control value of the GDI engine. A corresponding control system includes a fuel supply pressure controller, among other components, which is operated by a predetermined program for executing the method of controlling the low pressure fuel pump of the GDI engine. | 06-19-2014 |
| 20140174407 | Fuel Supply System - A fuel supply system includes a feeder fuel circuit configured to: (i) convey a first fuel in a direction of a mixing tank via a first pump device proceeding from a first fuel tank for a first fuel type; or (ii) convey a second fuel in the direction of the mixing tank via the first pump device proceeding from a second fuel tank for a second fuel type; and a booster fuel circuit configured to convey fuel via a second pump device proceeding from the mixing tank in a direction of at least one marine diesel engine, the booster fuel circuit having an automatic fine filter positioned upstream of or downstream of the at least one marine diesel engine and in the booster fuel circuit, respectively. | 06-26-2014 |
| 20140190454 | FUEL PUMP DRIVING STRUCTURE AND INTERNAL COMBUSTION ENGINE - The fuel pump driving structure includes a camshaft and a pump cam member. The camshaft is rotatably supported at an end by a cylinder head. The pump cam member has a fitting hole into which the end of the camshaft is press fitted, and is operatively coupled to a high-pressure fuel pump. The pump cam member includes a pump cam section and a first contact section. The pump cam section has a first lift portion operating the high-pressure fuel pump, and a base circular portion that does not operate the high-pressure fuel pump. The first contact section is in a position offset from a position of the first lift portion with respect to a circumferential direction and contacting a portion of the camshaft in an axial direction at a position radially outward of an external circumferential surface of the one end of the camshaft. | 07-10-2014 |
| 20140216416 | FUEL MODULE WITH ELECTROSTATIC DISCHARGE MITIGATION - Methods and apparatus are provided for electrostatic discharge mitigation for a fuel module. In one embodiment, the system includes a fuel pump having a power and ground connection for pumping fuel. A fuel filter in fluid communication with the fuel pump, the fuel filter including one or more components made of a non-conductive plastic and having a sulfonated surface covered with a conductive surface formed over the sulfonated surface. The conductive surface is electrically coupled to the vehicle ground plane. A method is provided for mitigation of electrostatic discharge in a fuel module. In one embodiment, the method includes sulfonating non-conductive plastic components of the fuel module to provide a sulfonated layer on the non-conductive plastic components and forming a conductive layer over the sulfonated layer to provide an electrical discharge path for electrostatic buildup resulting from fuel moving through the fuel module. | 08-07-2014 |
| 20140216417 | FUEL PUMP - The invention relates to an engine system comprising a fuel pump for compressing fuel. The fuel pump having at least two compression pistons, an eccentric chamber in which the at least two compression pistons are mounted in axially displaceable fashion, and a rotatably mounted eccentric for driving the at least two compression pistons is accommodated in the eccentric chamber, wherein the eccentric and the at least two compression pistons are operatively connected to one another such that the two compression pistons are axially displaced for the compression of fuel. Provision is made, here, for the eccentric chamber to be at least partially filled with lubricant. | 08-07-2014 |
| 20140216418 | FUEL PUMP AND FUEL SUPPLY SYSTEM OF INTERNAL COMBUSTION ENGINE - In order to provide a fuel pump capable of effectively suppressing a generation of fuel vapor by reducing heat which is transferred from the pump body to the fuel therein, the fuel pump includes a pump body in which a fuel introduction passage and a fuel pressurizing chamber are formed, and a pressurizing pump mechanism having an outer end lubricated by oil and operative to pressurize and discharge the fuel in the pressurizing chamber by a power inputted to the outer end. The pump body includes a fuel accommodation portion formed with at least part of the fuel introduction passage, and a barrier wall portion for regulating the oil from being introduced into the fuel accommodation portion. The fuel accommodation portion and the barrier wall portion are connected with each other through a heat transmission path which is provided therein with a heat transmission member having a higher heat transfer performance than that of a material forming the pump body, the heat transmission member includes a connecting part exposed to the outside of the pump body. | 08-07-2014 |
| 20140230794 | METHODS AND SYSTEMS FOR A FUEL SYSTEM - Various methods and system are described for a fuel system which includes a fuel composition sensor and a fuel lift pump disposed upstream of the sensor. The system may be operated in each of three different modes of operation. In each of the modes, a fuel lift pump voltage is adjusted responsive to a fuel capacitance output by the sensor, while a variable such as sensor temperature or fuel pump pressure is maintained depending on the mode of operation. | 08-21-2014 |
| 20140238357 | STRUCTURE OF ENGINE - A structure of an engine includes: a crankshaft module configured to convert reciprocal motion of a piston into rotational motion; and a first balance shaft module and a second balance shaft module configured to reduce vibration of the engine, in which the first balance shaft module is directly gear-meshed with the crankshaft module, and the second balance shaft module is gear-meshed with the crankshaft module through an intermediate gear. | 08-28-2014 |
| 20140238358 | ROTARY DISK VALVE ARRANGEMENT - The invention relates to a rotary disk valve arrangement having a crankcase for accommodating a crankshaft, wherein the crankcase has an inlet opening for fresh air and at least two rotary disk valves for regulating an ingress of fresh air into the crankcase, wherein the at least two rotary disk valves have in each case one axis of rotation and are mounted so as to be rotatable relative to one another for the purpose of at least partially opening up and closing off the inlet opening, and wherein the at least two rotary disk valves are arranged on the crankcase at a coupling surface of the crankcase. The coupling surface has at least one further inlet opening, and the at least two rotary disk valves comprise in each case at least two rotary valve openings for the purpose of at least partially opening up the at least two inlet openings. | 08-28-2014 |
| 20140251283 | MECHANICAL LIFTER - The mechanical lifter generally includes an inner lift member, an outer lift member, and a roller. The inner lift member is at least partly made of a metallic material. The outer lift member is at least partly made of a polymeric material and surrounds the inner lift member. The roller is rotatably coupled with respect to the inner lift member and is partly disposed within the inner lift member. The inner lift member is configured to move a first component in response to a force applied to the roller by a second component. | 09-11-2014 |
| 20140318502 | PORTABLE ENGINE - A portable engine includes: an internal combustion engine to burn fuel so as to output power; a fuel tank to store the fuel; a fuel pump to transfer the fuel from the fuel tank to the internal combustion engine; a U-shaped fuel pipe to transfer the fuel is disposed, and at a lowest portion of a fuel passage of the fuel pipe; and a fuel drainer capable of discharging the fuel in the fuel pipe to outside. The U-shaped fuel pipe is disposed between the fuel tank and the fuel pump, and the fuel drainer is disposed at a lowest site of a fuel passage of the fuel pipe. | 10-30-2014 |
| 20140331974 | Modular Low Pressure Fuel System with Filtration - A combustion engine system and a method of operating the combustion engine system are disclosed. The combustion engine system includes a first fuel pump operatively coupled to a first prime mover and fluidly coupled to a fuel reservoir, a first power source operatively coupled to the first prime mover, the first power source including a first controller, a third fuel pump having an inlet that is fluidly coupled to a discharge of the first fuel pump, a first filter in fluid communication with the first fuel pump, a combustion engine fluidly coupled to a discharge of the third fuel pump and operative to convert fuel from the third fuel pump into shaft power. The first controller is configured to drive the first prime mover at a substantially constant power, independent of a rate of consumption of the fuel by the combustion engine. | 11-13-2014 |
| 20140366849 | FUEL PUMP ASSEMBLY - A fuel pump assembly comprises a pumping plunger for pressurising fuel within a pumping chamber during a plunger pumping stroke; and a cam follower arrangement for imparting drive to the pumping plunger including a cam follower member which cooperates with the pumping plunger. The cam follower arrangement is biased into engagement with a cam drive whilst a degree of relative movement along the plunger axis is permitted between the cam follower member and the pumping plunger. At least one of the pumping plunger and the cam follower member includes a surface provided with a feature which defines together with a facing surface of the other of the pumping plunger and the cam follower member, a cushioning volume therebetween for receiving fluid to provide a cushioning effect as the pumping plunger and the cam follower member move into contact with one another, in use. The feature includes a flat central portion and an annular region which is conical in form and which is angled relative to the facing surface. | 12-18-2014 |
| 20150007798 | CONTROL METHOD OF FUEL PUMP FOR VEHICLE AND ELECTRONIC CONTROLLER - A control method and system of a fuel pump for a vehicle are provided and include determining, by a controller, whether an accelerator pedal signal is rapidly increased and comparing, by a controller, a current control quantity of the fuel pump with a predetermined reference control quantity in response to determining that the accelerator pedal signal is rapidly increased. In addition, the controller is configured to set the control quantity of the fuel pump as a predetermined jump control quantity when the current control quantity is less than the predetermined reference control quantity. | 01-08-2015 |
| 20150027416 | ENGINE FUEL PUMP AND METHOD FOR OPERATION THEREOF - A method of pressuring fuel for a direct injection fuel system via a fuel pump in an engine is provided. The method includes, during a first mode, adjusting a magnetic solenoid valve (MSV) to control pump outlet pressure and during a second mode, deactivating the MSV and controlling pump outlet pressure via a noise-reducing valve assembly on an inlet side of the fuel pump. | 01-29-2015 |
| 20150075498 | FUEL PUMP RETAINER - A fuel pump is disclosed. The fuel pump includes a housing. Further, the fuel pump includes a rotatable pump shaft disposed within the housing. One end of the rotatable pump shaft is attachable to a gear. The housing also includes a retainer disposed within the housing and located about the pump shaft. The retainer includes a first rim and a second rim that are spaced apart from each other. The retainer also includes a side wall extending between the first and the second rims. Further, the side wall of the retainer defines a first volume and a second volume within the housing. The side wall of the retainer has a plurality of apertures configured to allow a fluid flow from the first volume to the second volume while retaining particulate contaminants larger than a size of the apertures within the first volume. | 03-19-2015 |
| 20150075499 | Method And Apparatus For Controlling Fuel Pressure In A Gaseous Fuelled Internal Combustion Engine - A method for controlling fuel pressure in an internal combustion engine consuming a gaseous fuel and a liquid fuel comprises steps of determining a gaseous fuel pressure target value as a function of an engine operating condition, pressurizing the liquid fuel to a liquid fuel pressure based on the gaseous fuel pressure target value, and regulating gaseous fuel pressure from the liquid fuel pressure. The gaseous fuel pressure equals the gaseous fuel pressure target value to within a predetermined range of tolerance. A corresponding apparatus controls fuel pressure in a gaseous fuelled internal combustion engine. | 03-19-2015 |
| 20150136091 | JET PUMP OF FUEL PUMP MODULE FOR VEHICLE - A pressure jet pump of a fuel pump module for a vehicle can prevent an engine from stopping and disordering due to unstable fuel supply, by keeping fuel supply stable in driving under bad conditions. The pump includes: a nozzle portion into which some of fuel pressurized by a fuel pump flows; a fuel intake portion integrally formed at the rear end of the nozzle portion and having a plurality of suction holes around the circumference; a mixing chamber that is integrally formed at the rear end of the fuel intake portion and in which fuels flowing inside through the nozzle portion and the fuel intake portion are mixed; and a diffuser that is integrally formed at the rear end of the mixing chamber and through which fuel sent from the mixing chamber is diffused. | 05-21-2015 |
| 20150308356 | BI-FUEL ENGINE - Provided is a bi-fuel engine including a pressure supply passage extending from a crankcase chamber, and branching into a first branch passage and a second branch passage at a branching portion, a gas fuel valve provided in the gas fuel supply passage and connected to the first branch passage so that the gas fuel supply passage may be opened when pressure is supplied to the gas fuel supply passage, and may be closed when pressure is not supplied to the gas fuel supply passage, a liquid fuel pump provided in the liquid fuel supply passage and configured to feed the liquid fuel under pressure to the intake system by a pulsating pressure supplied via the second branch passage, and a switch valve provided in the branching portion to switch between the first and second branch passages for conducting pressure supplied from the pressure source via the pressure supply passage. | 10-29-2015 |
| 20150354514 | FUEL SUPPLY SYSTEM AND METHOD OF SUPPLYING FUEL TO ENGINE - A fuel supply system for an engine is disclosed. The fuel supply system includes a fuel pump defining a fuel chamber and a hydraulic chamber. The fuel chamber is in fluid communication with a fuel source and the hydraulic chamber is in fluid communication with a hydraulic pump that supplies a pressurized hydraulic fluid. In a suction stroke of a fuel piston in the fuel chamber, a valve system provides a first portion of hydraulic fluid to hydraulic chamber to drive the fuel piston in a first direction and provides a second portion of hydraulic fluid to the accumulator. In a compression stroke, the valve system provides hydraulic fluid to hydraulic chamber to drive the fuel piston in a second direction. Further, the accumulator releases the stored fluid to hydraulic chamber to drive the fuel piston in the second direction. | 12-10-2015 |
| 20150361936 | FUEL SUPPLY SYSTEM - A fuel supply system for a vehicle having an internal combustion engine and a fuel tank, has a reservoir, a fuel pump, a suction filter, a fuel transfer and a pressure accumulator. The reservoir is located in the fuel tank and is hermetically sealed. The fuel pump is configured to suck fuel from the reservoir and to supply the fuel to the internal combustion engine. The suction filter is configured to filter the fuel sucked by the fuel pump. The fuel transfer is configured to transfer the fuel from the fuel tank into the reservoir and to pressurize the fuel in the reservoir. The pressure accumulator is connected to the reservoir in order to control a pressure of the fuel in the reservoir. | 12-17-2015 |
| 20160108871 | FUEL SUPPLY SYSTEM - A fuel supply system for an internal combustion engine may include a first tank and a second tank connected to each other via a fuel line. A first pump and a first fuel filter may be arranged between the first tank and the second tank. A second fuel pump and a second fuel filter may be arranged between the second tank and the engine. The first fuel filter may have a water separator. A first return line may be fluidly connected to the engine on an inlet side and to the second tank on an outlet side and/or the first fuel filter on a raw side. A preheating valve may be arranged in the first return line and be configured to distribute the fuel flowing back from the engine to the first fuel filter and/or the second tank. A second return line may connect the first and second tank. | 04-21-2016 |
| 20160123428 | GEAR TRAIN LAYOUT STRUCTURE FOR DRIVING A FUEL PUMP - A gear train layout structure may include a fuel pump configured to pressurize fuel and to supply the pressurized fuel to an engine, a pump shaft, a driven gear for rotating the pump shaft, a driving gear to drive the driven gear, a first balance shaft and a second balance shaft respectively mounted at a front and a rear of a crankshaft of the engine for balancing the engine and attenuating vibration of the engine, a first balance gear and a second balance gear, a crank gear fixedly mounted on a side portion of the crankshaft, and at least one connecting rod connecting the crankshaft and a piston for rotating the crankshaft. | 05-05-2016 |
| 20160131097 | HIGH PRESSURE PUMP - A partitioning portion partitions a fuel chamber into a first space, which receives a pressurizing chamber forming portion and is communicated with an inflow pipe, and a second space, which is communicated with an outflow pipe. A flow passage forming portion extends from the partitioning portion toward the first space side and forms a communicating flow passage, which communicates between the first space and the second space. Thereby, vapor contained in the fuel, which is returned from a pressurizing chamber to the fuel chamber, is accumulated as bubbles in the first space, which receives the pressurizing chamber forming portion. The first space is communicated with the outside through the communicating flow passage and the second space. Therefore, outputting of air bubbles of the first space to the outside can be effectively limited in comparison to a case where the fuel chamber is directly communicated with the outside. | 05-12-2016 |
| 20160138513 | METHOD FOR CONTROLLING VEHICLE FUEL PUMP - A method for controlling fuel pump of vehicle includes sensing a vehicle door lock release signal, detecting a fuel pressure in a fuel line, and actuating the fuel pump so that the fuel pressure arrives at a predetermined target pressure when the detected fuel pressure is below a predetermined actuation pressure. | 05-19-2016 |
| 20160138537 | FUEL DELIVERY SYSTEM WITH PARTIAL PRESSURE RELIEF VALVE ON THE DRIVE LINE OF A SUCTION JET PUMP - A fuel delivery system ( | 05-19-2016 |
| 20160146168 | FUEL TANK ASSEMBLY HAVING CROSSOVER TUBE - A fuel tank assembly includes a primary fuel tank, a secondary fuel tank, a crossover tube, a fuel pump, a transfer tube, and a jet pump. The crossover tube is fluidly coupled with each of the primary fuel tank and the secondary fuel tank and defines a flow path for fuel to flow between the primary fuel tank and the secondary fuel. The fuel pump is disposed within the primary fuel tank and is configured to selectively supply fuel from the primary fuel tank to an engine. The transfer tube is routed internal to the crossover tube and is in fluid communication with each of the primary fuel tank and the secondary fuel tank. The jet pump is in fluid communication with the transfer tube and is configured to facilitate the flow of pressurized fuel from the secondary fuel tank, through the transfer tube, and into the primary fuel tank. | 05-26-2016 |
| 20160201622 | FUEL SUPPLY SYSTEM | 07-14-2016 |
| 20160252057 | APPARATUS AND METHOD FOR OPERATING A PLURALITY OF HYDRAULIC PUMPS | 09-01-2016 |
| 20160377041 | Multiple Element Firing Strategy for Cryogenic Pump - A pump has a plurality of pumping elements, each being independently responsive to an actuation signal from a controller. The controller is programmed to maintain a desired pressure at the pump discharge, monitor the fluid pressure at the pump discharge, compare the fluid pressure with the desired fluid pressure to determine a pressure error, provide commands to sequentially actuate the pumping elements when the pressure error is within a threshold range, and provide commands to actuate more than one of the plurality of pumping elements simultaneously, such that more than one pumped amounts of fluid are delivered simultaneously at the pump discharge, when the pressure error droops outside of the threshold range. | 12-29-2016 |
| 20170234281 | FUEL FILTER | 08-17-2017 |
| 20180022431 | FUEL SUPPLY SYSTEM AND METHOD FOR SHIP ENGINE | 01-25-2018 |
| 20180022432 | FUEL SUPPLY SYSTEM AND METHOD FOR SHIP ENGINE | 01-25-2018 |
| 20180023518 | FUEL GAS FUELING SYSTEM AND METHOD | 01-25-2018 |
| 20190145365 | FUEL PUMP | 05-16-2019 |
