| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 417510000 | Mechanically actuated distributor | 36 |
| 20080298990 | Oil pressure braking pump with different braking stages - An oil pressure braking pump, comprises a supporting frame having a receiving space; a piston and an adjusting unit being received in the receiving space; a handle being installed to the supporting frame; the handle serving to actuate a piston within the supporting frame; the piston being driven by the handle; an adjusting unit having a plurality of elastic units which has different elastic coefficients so as to push a pneumatic pressure device with different stages. The handle can push the piston; and then the piston pushes the adjusting unit to further drive the pneumatic pressure device with different stages. | 12-04-2008 |
| 20090220363 | PISTON PUMP FOR A VEHICLE BRAKE SYSTEM WITH A SEALING ELEMENT - The invention relates to a piston pump for a vehicle braking system, with a housing section and a piston, which is guided in the housing section in a slidable manner. An accommodating member for accommodating an intake valve is provided in the housing section, and a sealing element adjoins the accommodating member to seal the piston against the housing section. A piston rod adjoins the sealing element which is embodied in one piece with the accommodating member. | 09-03-2009 |
| 20090246051 | PUMP OF ELECTRONICALLY CONTROLLED BRAKE SYSTEM - A pump of an electronically controlled brake system. The pump includes a bore formed in a modulator block and connected with a suction port and a discharge port, a piston installed in the bore in a reciprocating movable manner and defining an inlet path therein, an inlet valve to open or close an exit-side end of the inlet path according to a position of the piston, and an outlet valve provided at one side of the bore, operations of the inlet and outlet valves being contrary to each other. The outlet valve includes a valve seat, a sleeve to surround the valve seat, an outlet ball interposed between the sleeve and the valve seat and used to open or close a path defined in the valve seat, and a valve cap provided at one side of the sleeve to isolate an interior from an exterior of the bore. One or more of the valve sheet, sleeve, and valve cap are formed by press-forming, to achieve improved assembly efficiency and reduced manufacturing costs. | 10-01-2009 |
| 20090252627 | Compressor Assembly Comprising a Valve Unit in the Intake Region - An air compressor assembly includes a compressor housing, an intake port defined by the compressor housing for intake of the air, and a plurality of guide contours disposed adjacent to the intake port. The guide contours include between three and six strips. A valve unit is disposed adjacent to the intake port, the valve unit comprising a closing element that assumes an opened position during operation and a closed position when in a switched-off state. The closing element is plate-shaped, is axially movable, and is guided by the plurality of guide contours between the opened position and the closed position. A stroke limitation element is provided to limit axial movement of the closing element in the opened position. A spring is disposed between the closing element and the stroke limitation element. The spring provides a return force to the closing element to bias the closing element into the closed position. | 10-08-2009 |
| 20090280017 | Compressor Slide Valve Support - A compressor ( | 11-12-2009 |
| 20100247359 | ACTIVELY CONTROLLED VALVE AND METHOD FOR OPERATING AN ACTIVELY CONTROLLED VALVE - The invention relates to an actively controlled valve ( | 09-30-2010 |
| 20110217196 | Plunger Pump for Fabricating Soft Capsules - The present utility model provides a plunger pump for fabricating soft capsules, which plunger pump includes a switch body and a plunger body interconnected to each other, a rotary switch adapted to the switch body, and a plunger rod adapted to the plunger body. The switch body and the plunger body are connected to form an accommodation space, the switch body has a liquid suction hole and a liquid injection hole both communicative with the accommodation space, the plunger body has a channel for accommodating the plunger rod, and the rotary switch has a notch and is closely press-fit to the switch body to form a hermetic surface. It is possible to switch between the opening and the closing states of the liquid suction hole and the liquid injection hole. The plunger rod performs a linearly reciprocating movement in the channel so that the accommodation space periodically reaches a maximum value of capacity and a minimum value of capacity. The present utility model employs the structure of a rotary switch, which is sealed with zero gap, to switch between the opening and the closing states of the liquid suction hole and the liquid injection hole, whereby it is substantially free of leakage of medical solution and there is no mixing and dissolving with lubricating oil during normal operation of the plunger pump, to thereby enhance the precision in the loading amount and eliminate the problem of contamination of the medical solution by the lubricating oil. | 09-08-2011 |
| 20110280754 | CAM-TYPE PUMP STRUCTURE FOR A REFRIGERANT RECYCLING MACHINE - A cam-type pump structure for a refrigerant recycling machine includes a cam device driven by a motor for pistons to be reciprocated in conjunction with cylinders and valve bodies so as to pump liquid. The pump apparatus is compact in size and has high efficiency for the demand of recycling refrigerant. | 11-17-2011 |
| 20120201706 | Plunger Type Water Pump - The present disclosure provides a plunger type water pump, which mainly comprises a cavity body, a rotary main shaft and a plunger flow-distributing unit. The plunger distributing unit comprises a flat valve assembly, a plunger-shoe assembly and a supporting valve assembly; the plunger-shoe assembly divides the cavity body into a high-pressure cavity and a low-pressure cavity independent of each other; the high-pressure cavity is in fluid communication with the flat valve assembly; and the low-pressure cavity is in fluid communication with the supporting valve assembly. According to the present disclosure, the high-pressure water and the low-pressure water are independent of each other. This can ensure a high volumetric efficiency of the water pump under ultra-high-pressure conditions and surely provide the fluid supporting and lubrication for a friction coupling under high-speed heavy-load conditions so as to prolong the service life of the water pump. | 08-09-2012 |
| 20120219441 | Hand Pump for Pumping Fluids, and Filter System for Fluids Including a Hand Pump - A hand pump ( | 08-30-2012 |
| 20120294744 | AIR MOTOR HAVING DROP TUBE WITH KNUCKLE ENDS - An air motor for a pump assembly including a drop tube communicating between an upper chamber port and a top plate port and including a longitudinal axis that is at an angle of between about 0° and 10° with respect to each of the upper chamber longitudinal axis and the top plate port longitudinal axis. The drop tube has a substantially constant internal diameter, a first generally bulbous end, a second generally bulbous end, and first and second slots defined in the respective first and second bulbous ends. First and second seals are positioned in the respective first and second slots, and the first and second seals air-tightly seal an outer surface of the drop tube within the upper chamber port and the top plate port. | 11-22-2012 |
| 20120294745 | AIR MOTOR HAVING A MODULAR ADD ON REGULATOR - A pump assembly including an air motor includes a modular relief valve assembly connected to a motive fluid inlet of the air motor. The modular relief valve assembly has a housing that contains an actuator assembly, a ball valve assembly, a bleed valve, a first pressure adjustment assembly, and a second adjustment assembly. The housing includes a motive fluid inlet port, a pressure regulator outlet, a bleed valve port, an actuator support, a pressure adjustment chamber, and a ball valve chamber. The pressure regulator assembly includes at least one gauge that displays at least one measurement parameter. | 11-22-2012 |
| 20120308420 | AIR MOTOR HAVING CERAMIC VALVES - An air motor includes ceramic valves and valve plates to enhance performance and efficiency of the air motor. | 12-06-2012 |
| 20130189140 | VALVELESS RECIPROCATING COMPRESSOR - A system, in certain embodiments, includes a compression cylinder configured to mount to a reciprocating compressor. The compression cylinder includes an intake port and a discharge port. The system also includes a piston assembly disposed within the compression cylinder. The piston assembly includes a piston, and a flow control member extending from the piston. The flow control member is configured to selectively block the intake port and the discharge port upon movement of the piston assembly relative to the compression cylinder. | 07-25-2013 |
| 20130315764 | VALVE ACCELERATING TYPE DISPENSING PUMP - A dispensing pump, and more particularly, a valve accelerating type dispensing pump that may be used in a process of manufacturing an electronic product and may dispense an accurate amount of a liquid, such as a liquid synthetic resin, at high speed. The present invention provides a valve accelerating type dispensing pump that can descend a valve rod at high speed and thus can dispense a liquid with high viscosity at high speed. The valve accelerating type dispensing pump can dispense an accurate amount of a liquid at high speed. Also, the valve accelerating type dispensing pump can dispense a liquid having high viscosity at high speed due to a fast descending speed of a valve rod. | 11-28-2013 |
| 20140086772 | ACTUATOR ELEMENT AND AN ACTUATOR FOR GENERATING A FORCE AND/OR A MOVEMENT - The present invention concerns an actuator element ( | 03-27-2014 |
| 20140093410 | MULTI-PURPOSE LARGE CAPACITY PUMP - A multi-purpose large capacity pump includes a cylinder having top and bottom ends closed by a top lid and a bottom lid. The top lid is provided with an inlet port that is in communication through a first one-way valve with an interior space of the cylinder. The bottom lid includes a second one-way valve in communication with the interior space of the cylinder. An output tube connects between the second one-way valve and an outlet port of the top lid. A protection enclosure is set around an outer circumference of the cylinder and a base is provided to fix and support the bottom end of the cylinder. A pull bar extends through the top lid into the cylinder to allow an inner end thereof to couple to a piston. The pull bar has an outer end to which a handle is mounted. | 04-03-2014 |
| 20140199194 | FUEL PUMP - Provided is a fuel pump comprising: a pump body; a plunger reciprocatably displaceable with respect to the pump body; and a plurality of valve elements inclusive of a suction valve to allow the fuel to be sucked into the fuel pressurizing chamber and a discharge valve to allow the fuel to be discharged out of the fuel pressurizing chamber, in which the pump body comprises a tubular valve retention member to retain the plurality of valve elements, a cylinder member to slidably retain the plunger, and an outer shell member having an inner wall surface facing an outer surface of the valve retention member, the inner wall surface and the outer surface of the valve retention member collectively forming a suction gallery chamber. | 07-17-2014 |
| 20140271294 | PUMP SEAL WITH THERMAL RETRACTING ACTUATOR - A thermal actuator for a rotating shaft shutdown seal that has a piston with a portion of its axial length enclosed within a chamber shell with a material that expands upon a rise in temperature. The portion of the actual length of the piston within the chamber has at least two different diameters with the larger diameter leading in the direction of travel of the piston. Upon a rise in temperature, expansion of the material surrounding the piston within the chamber creates a force on the piston in the desired direction of travel. | 09-18-2014 |
| 20140286804 | AIR COMPRESSOR HAVING BUFFERING COMPARTMENT - An air compressor assembly includes a cylinder housing, an outlet receptacle disposed on the cylinder housing, and a partition having an air passage formed between the cylinder housing and the outlet receptacle, and a piston slidably received in the cylinder housing for generating a pressurized air, the partition includes a channel communicating with the chamber of the cylinder housing, and the cylinder housing includes a compartment formed in a casing and communicating with the channel of the partition for partially receiving the pressurized air and for buffering purposes. A regulating valve is engaged in the casing for adjusting the volume of the compartment of the casing. | 09-25-2014 |
| 20140314603 | FUEL PUMP - A fuel pump having a housing which defines a pump chamber with an inlet and an outlet. A piston is reciprocally mounted in the pump chamber. An inlet valve is mounted fluidly in series between the pump chamber and the housing inlet which opens and closes the inlet in synchronism with the reciprocation of the piston. A rotary valve is mounted fluidly in series with the housing outlet and the rotary outlet valve is rotatably driven in synchronism with reciprocation of the piston. The rotary valve is configured so that it is fluidly open only at one or more predetermined angular positions of the rotary outlet valve. The open and close timings of the rotary inlet and outlet valves are completely controlled by a motor in order to control the fuel pressure, especially to avoid excessive fuel compression and resulting fuel pressure fluctuation. | 10-23-2014 |
| 20140377111 | TRANSLO-ROTATING ACTUATED ROTARY VALVES FOR RECIPROCATING COMPRESSORS AND RELATED METHODS - An actuated rotary valves for reciprocating compressors used in oil and gas industry, the valve including a stator with a stator opening, a rotor with a rotor opening, and an actuation mechanism. The actuation mechanism is configured to receive a rotation motion and to actuate the rotor to perform first an axial translation moving away from the stator and then a rotation. The actuation mechanism includes an outer shaft configured to receive the rotation motion, and an inner shaft inside the outer shaft and configured to rotate the rotor. The outer shaft is configured to rotate a predetermined angular displacement while pushing the rotor away from the stator before engaging the inner shaft to rotate together with the rotor. | 12-25-2014 |
| 20160040659 | PUMP DEVICES FOR FEEDING PASTY MASSES - A pump device for feeding pasty masses includes a piston pump having a cylinder with a piston connected to a pre-fill container via an inlet. The inlet is delimited by an orifice plate closeable with a slide valve. The slide valve includes pivotable base body, a housing and a closure surface facing inside the housing. The closure surface is formed at least partially by a surface of a valve piston movable relative to the base body. The valve piston enters a hollow space formed in base body when a pressure from the pasty masses is applied to valve piston from inside the slide valve housing. The valve piston enters the hollow space compressing a fluid. A cutting ring constructed as an annular piston having a surface facing the hollow space is pressed in a closed position of the inlet slide valve against the orifice plate by pressure from the fluid. | 02-11-2016 |
| 417514000 | Distributor in piston | 2 |
| 20150376996 | ANTI-GAS LOCK VALVE FOR A RECIPROCATING DOWNHOLE PUMP - Method and apparatus overcoming gas-lock in reciprocating downhole pumps. On the downstroke of a plunger in a barrel, gassy fluid is compressed in the pump chamber between standing and travelling valves. Downhole plunger movement drags a sleeve over a mandrel for opening a chamber valve to a staging chamber located at a downhole end of the travelling valve for receiving at least a portion of the compressed and gassy fluid therein. On the upstroke, the chamber valve is dragged closed for sealably retaining the compressed gassy fluid therein while drawing an additional increment of fluid through the standing valve into the pump chamber. Continued downstroke and upstroke cycles increases pressure of the compressed gassy fluid in the pump chamber until it exceeds the hydrostatic head above the travelling valve for resumption of normal fluid pumping. | 12-31-2015 |
| 20160084049 | MECHANICALLY ACTUATED TRAVELING VALVE - A mechanically actuated traveling valve for use in fluid pumping equipment. More particularly, a multiple component mechanically actuated traveling plug valve having a valve seat, a valve plug and at least one displaceable valve ring positioned therebetween is provided for use in subsurface positive displacement pumps capable of pumping high viscosity fluids, with any gas to liquid ratio, operating at any inclination angle. | 03-24-2016 |
| 417515000 | Plural pumping chambers | 8 |
| 20100068085 | Reciprocating Compressor for Refrigerator - The present invention provides a reciprocating compressor for a refrigerator capable of restraining an increase in temperature of a refrigerant discharged and increasing refrigerant compression efficiency. | 03-18-2010 |
| 20100232996 | Piston Pump for Thick Substances - The invention relates to a piston pump for thick matter, in particular for high-solids sewage sludge, coal sludge and concrete. The piston pump has at least one delivery cylinder ( | 09-16-2010 |
| 20130216413 | OFFSET VALVE BORE IN A RECIPROCATING PUMP - A fluid end | 08-22-2013 |
| 20160025082 | SYSTEM AND METHOD FOR REINFORCING RECIPROCATING PUMP - A drive system for a fluid end of a reciprocating pump assembly including a drive member and a power end housing having a crankshaft rotatably disposed therein. The assembly includes a gearbox secured to the power end housing, the gearbox operatively connecting the drive member to the crankshaft for rotation thereof. The assembly further includes at least one arm member extending between the gearbox and the power end housing, the at least one arm member positioned to resist relative movement between the gearbox and the power end housing. | 01-28-2016 |
| 417516000 | Common element forms inlet or discharge distributor for plural chambers | 4 |
| 20080260560 | Piston Pump for Thick Materials - The invention relates to a multi-cylinder thick matter pump ( | 10-23-2008 |
| 20090155107 | Mechanism For The Recovery Of Energy In Self-Propelled Vehicles - The invention relates to a mechanism for the recovery of energy in self-propelled vehicles. The inventive mechanism consists of either: (a) a balanced rotary compressor with tangential pistons, comprising two or more cylinders which are connected to a crank having two or more pins; or (b) a rotary compressor with tangential pistons, comprising an extendible crank. The novel system enables the recovery of wasted energy in motor vehicles in the form of pneumatic pressure for the possible use thereof in auxiliary systems belonging to the vehicle or in the engine. | 06-18-2009 |
| 417517000 | Element forms both inlet and discharge distributor | 2 |
| 20110274572 | METHOD FOR FEEDING PASTY MASSES AND PUMP DEVICE FOR FEEDING PASTY MASSES - The invention relates to a method for feeding pasty masses using a pump device which has a piston pump with at least two cylinders, each having one piston, wherein each cylinder of the pump device is connected to a pre-fill container via an inlet opening, which can be closed by an inlet slide valve associated with the cylinder, and wherein each cylinder of the pump device is connected to a feed line via an outlet opening, which can be closed by an outlet slide valve associated with the cylinder, wherein pasty mass is fed from the pre-fill container into the respective cylinder during a suction stroke of a cylinder with the inlet opening open and the outlet opening closed, and wherein pasty mass is fed into the feed line during a pump stroke of a cylinder with the outlet opening open and the inlet opening closed, wherein the piston velocity is greater during the suction stroke than during the pump stroke, and wherein at the end, toward the end or shortly after the end of the suction stroke, the inlet opening is closed by the inlet slide valve, whereafter the pasty mass is compressed in the cylinder before the outlet opening is opened. | 11-10-2011 |
| 20150139837 | ROTATIVE VALVES FOR RECIPROCATING COMPRESSORS AND RELATED METHODS - Reciprocating compressors having a rotative valve and related methods are provided. A reciprocating compressor has a compression chamber configured to compress a fluid that has entered the compression chamber via an intake, and it is discharged from the compression chamber, after being compressed, via a discharge, an actuator configured to supply an angular displacement, and a rotative valve configured to receive the angular displacement and to determine whether the intake and the discharge are opened or closed depending on the angular displacement. The rotative valve has a rotatable disk configured to rotate due to the angular displacement and having a first opening allowing a suction fluid flow to enter the compression chamber when the first opening overlaps the intake, and a second opening allowing a discharge fluid flow to exit from the compression chamber when the second opening overlaps the discharge. | 05-21-2015 |
| 417518000 | Common element forms inlet and discharge distributor | 1 |
| 20110097229 | Feedback Controlled Syringe Pump - Provided is an automated syringe pump that includes a syringe plunger controller and an elastic member, such as a spring, positioned between a rigid member and a syringe plunger retainer. The controller may include a transducer, such as a linear potentiometer, for generating a signal representative of force applied to a syringe plunger present in the syringe plunger retainer. In addition, the controller may include a proportional-integral-derivative (PID) controller that provides for at least one of constant pressure on the syringe plunger and constant flow rate of fluid out of a syringe operated by the automated syringe pump. Also provided are methods, systems and kits using the automated syringe pumps. | 04-28-2011 |
| 417520000 | Distributor abutted by or frictionally engaged with pumping member | 2 |
| 20090053087 | PLUNGER FOR A SUCKER ROD PUMP - An improved plunger has a north end, a south end, and a center region therebetween. A first northward angled shoulder is provided proximate the north end, for catching solids and preventing them from damaging an exterior of the plunger below the shoulder and potentially other pump components. In one embodiment, first and second northward angled shoulders are provided proximate the north end. First and second southward angled shoulders may be provided proximate the south end, making the plunger invertible when the north end becomes worn. The plunger may be comprises of separable regions, having different hardnesses. In one embodiment, the shoulders may provide a tapered outside diameter for the plunger. | 02-26-2009 |
| 20090175746 | Compressor - A compressor having a casing to which a gas suction pipe is connected; a driving motor provided in the casing; a cylinder; a valve supporting plate ( | 07-09-2009 |
