| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123027000 | BURNING BY HIGHLY COMPRESSED AIR | 27 |
| 20090025678 | Trinity pneumatic energy systems - The invention is a process of components from existing technologies connected together in a manner that provides an alternative means of providing power to an internal combustion without the utilization of fossil or nuclear fuels as the primary means of power thus reducing or eliminating the adverse effects of the combustion process on the ecology and environment. | 01-29-2009 |
| 20090095250 | Homogenous charge compression ignition engine and controlling method of the engine - A controller sets a negative valve overlap period, during which both of an intake valve and an exhaust valve are closed, such that not all the burned gas is discharged from the combustion chamber. When switching the combustion mode from the spark ignition combustion to the HCCI combustion, the controller executes following operations a), b), and c): | 04-16-2009 |
| 20090199813 | Premixed Compression Ignition Type Engine And Method Of Controlling Intake Air Thereof - An intake passage ( | 08-13-2009 |
| 20090235896 | Diesel Cycle Internal Combustion Engine - A diesel cycle internal combustion engine can be operated with a variety of fuels having different boiling points and different viscosity-temperature characteristic curves, with a fuel circuit that includes a fuel tank, a fuel pump, a fuel line, at least one fuel filter, a high-pressure pump, an injection system device and a return line to return fuel to the fuel tank, where a control valve is provided in the return line for dividing or diverting the fuel flow to the fuel tank and/or to the fuel filter, and where the fuel division or diversion is undertaken as a function of the viscosity of the fuel in use such that the fuel filter will thence be heated to a temperature based on heat transfer from the fuel in use, and further where a pressure relief valve is provided between the fuel filter and the high-pressure pump. | 09-24-2009 |
| 20090283068 | FUEL FILTER ASSEMBLY WITH PRESSURE SENDING UNIT - A fuel filter assembly having a pressure sending unit for filtering and monitoring fuel and fuel pressure for diesel engines and the like comprising a filter head, a spin-on element and collection bowl. The filter head is fastened to an engine or other suitable structure by flange, bolts and supports the fuel filter assembly by monitoring fuel pressure by utilizing a pressure sending unit in fluid communication with an outlet port on the filter head. Preferably, filter head is a die cast head and includes therein typical inlet port, outlet port, and connected respectively thereto, inlet chamber and outlet chamber. Filter head is a generally circular structure having a flat annular mounting surface. The filter head may further comprises vent ports, vacuum switch ports or both, which are in fluid communication with outlet ports and return check valve ports that are in fluid communication with inlet ports. Still further, filter head is in fluid communication with a pressure sending unit, which is in electrical communication with a pressure monitoring device or similar warning system. | 11-19-2009 |
| 20100043745 | PREMIXED COMPRESSION IGINITION TYPE ENGINE AND METHOD OF CONTROLLING THE SAME - A premixed compression ignition type engine is operated while change over between spark ignition combustion and compression ignition combustion. This engine has a negative overlap period during steady operation under compression ignition combustion. In the same cylinder, a valve-closing timing of an exhaust valve during steady operation under spark ignition combustion is retarded with respect to the valve-closing timing thereof after the change over. In a case where an intake valve is first changed over after start of the change over from spark ignition combustion to compression ignition combustion, the valve-opening timing of the intake valve during a change over period from spark ignition combustion to compression ignition combustion is in an advanced state with respect to the valve-opening timing thereof during steady operation under spark ignition combustion. | 02-25-2010 |
| 20100077988 | HYDROGEN-ONLY 6-STROKE ENGINE - There are no prospects for engines using hydrogen as fuel to be put to practical use due to significant small output, knocking, and backfire. An object of the present invention is to obtain a stable automobile engine at high drive that can be commercially put to practical use. A hydrogen-only 6-stroke engine realizing high output by 6-strokes for premixing two to seven atmospheric pressure or high pressure hydrogen and air at equivalent weight, spraying the pre-mixture into a cylinder cooled by filling the cylinder with cold air in advance, spraying, compressing, and exploding the mixture, discharging the mixture from a lower exhaust hole, and discharging remaining waste gas from an upper exhaust hole is proposed. | 04-01-2010 |
| 20100162991 | HCCI COMBUSTION MODING STATE CONTROL FOR FUEL ECONOMY AND SEAMLESS TRANSITIONS - A method and system for controlling an engine includes a homogeneous charge compression ignition (HCCI) operating zone boundary module determining a first HCCI operating boundary and a fuel rate module determining a first fuel rate from an operator input. The system also includes a switch module modifying the first HCCI operating boundary to a modified boundary in response to a measured mass airflow, cam positions and the first HCCI operating boundary. The system also includes a combustion control module operating the engine in a spark ignited mode when a second fuel rate request is outside the modified boundary. | 07-01-2010 |
| 20120103303 | MARINE ENGINE LUBRICATION - Trunk piston marine engine lubrication, when the engine is fueled by heavy fuel oil, is effected by a composition comprising a major amount of an oil of lubricating viscosity and a minor amount of one or more phenolic compounds comprising distilled cashew nut shell liquid or hydrogenated distilled cashew nut shell liquid. Asphaltene precipitation in the lubricant, caused by the presence of contaminant heavy fuel oil, is prevented or inhibited. | 05-03-2012 |
| 20120125288 | HIGH-EFFICIENCY LINEAR COMBUSTION ENGNE - Various embodiments of the present invention are directed toward a linear combustion engine, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a combustion section disposed in a center portion of the cylinder; a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the combustion section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the combustion section and a hollow back section comprising a gas spring that directly provides at least some compression work during a compression stroke of the engine; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke; wherein the engine includes a variable expansion ratio greater than 50:1. | 05-24-2012 |
| 20120167858 | DIESEL ENGINE FOR VEHICLE - The disclosure provides a diesel engine, which includes an engine body mounted in a vehicle and having a cylinder to be supplied with fuel containing diesel fuel as its main component, a geometric compression ratio ε of the cylinder being set within a range of 12:1 to 15:1, and an EGR system for allowing a part of burned gas to exist inside of the engine body cylinder when the engine body is at least in a particular operating state where an engine load and an engine speed are relatively low. The EGR system includes an EGR passage at least partially formed inside the engine body, and having a predetermined or shorter passage, an EGR control valve provided in a course of the EGR passage and for adjusting a flow rate of the burned gas inside the EGR passage, and a controller for controlling an opening of the EGR control valve. | 07-05-2012 |
| 20140130771 | HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE - Various embodiments of the present invention are directed toward a linear combustion engine, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a combustion section disposed in a center portion of the cylinder; a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the combustion section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the combustion section and a gas section; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke. | 05-15-2014 |
| 20140261297 | INTERNAL COMBUSTION ENGINES - An engine including at least two piston and cylinder assemblies that, when operating with a fuel savings cycle, establish at the end of the simultaneous compression strokes a charge of compressed air in one cylinder of one assembly and a charge of compressed air fuel mixture in the other cylinder of the other assembly. When the air fuel mixture is ignited, the high pressure conditions in the other cylinder are immediately communicated through a passage to the one cylinder to accomplish a double expansion during the simultaneous power drive strokes thus using much of the pressure energy before exhaust occurs by the pistons themselves. The improvement comprises changing the other assembly which has the charge of compressed air fuel mixture therein between the two piston and cylinder assemblies in a predetermined pattern as, for example, an operative alternation between the two piston and cylinder assembles. | 09-18-2014 |
| 20140331959 | Method of Estimating Duration of Auto-Ignition Phase in a Spark-Assisted Compression Ignition Operation - A combustion engine system in one embodiment includes a combustion engine, at least one controllable component operably connected to the combustion engine, at least one sensor configured to sense a parameter associated with the combustion engine, and an electronic control unit (ECU) operably connected to the at least one controllable component and the at least one sensor, wherein the ECU is configured to determine a temperature of an unburned mixture based upon the sensed parameter, and control the at least one controllable component based upon the determined temperature. | 11-13-2014 |
| 20140360458 | INTERNAL COMBUSTION ENGINE WITH PAIRED, PARALLEL, OFFSET PISTONS - An internal combustion engine; wherein at least two cylinders continuously communicate via the cylinder head; and wherein the connecting rod in one cylinder is offset from the connecting rod in the second cylinder by an angle between 1 and 90 degrees as measured from the crankshaft. | 12-11-2014 |
| 20150020765 | COMBUSTION BOWL OF PISTON - A piston for a compression ignition internal combustion engine includes a piston body having an outer cylindrical surface defined along a longitudinal piston axis. A piston includes a combustion face defining a combustion bowl including an inner bowl surface, an inner rim portion and an outer rim portion. The combustion face includes a cross-sectional profile of rotation about the longitudinal piston axis. A first profile of the profile of rotation includes a convex curve segment, a linear segment outboard the convex curve segments and a first set of concave curve segments outboard the linear segment. The first set of concave curve segments defines a first radius of curvature. A second profile is provided outboard the first profile and includes a second set of concave curve segments. The second set of concave curve segments defines a second radius of curvature greater than the first radius of curvature. | 01-22-2015 |
| 20150040856 | SHIP, FUEL GAS SUPPLY APPARATUS, AND FUEL GAS SUPPLY METHOD - A ship includes a main pipe that guides CNG whose pressure is increased by an LNG pump to the engine; a pressure sensor that measures the pressure of CNG to be supplied to the engine; a pressure adjustment valve that adjusts the pressure of the CNG to a set pressure according to engine load; a differential pressure sensor that measures a differential pressure before and after the pressure adjustment valve; and a buffer tank that absorbs a variable pressure of the CNG in the main pipe. The discharge pressure of the LNG pump is controlled such that the differential pressure is increased when the pressure is low, and the differential pressure is decreased when the pressure is high. | 02-12-2015 |
| 20150053171 | INTERNAL COMBUSTION ENGINE WITH HIGH TEMPERATURE FUEL INJECTION - Set forth herein are apparatuses and systems that utilize high temperature fuel injection to eliminate knocking within a combustion systems, and more particularly internal combustion engines. In some embodiments, the combustion system of the present invention can eliminate knocking through the use of high compression ratios and high intake boost pressures. The combustion system can have a high exhaust gas recirculation (EGR) tolerance, as well as an increased range of fuel-air ratio with improved ignitability and increased combustion speed of the system. In some embodiments, combustion in the present invention takes place using a compression ignition process, a spark assisted compression ignition process or a combination thereof. | 02-26-2015 |
| 20150068490 | MULTI-FUEL ENGINE WITH VARIABLE VALVE TIMING - In a compression ignition multi-fuel engine employing both port/intake manifold injection of fuel and in-cylinder injection of fuel, the recirculation of exhaust gas to the engine induction system is used to control the temperature and to set the reactivity of an air/fuel charge introduced to the engine for combustion. Fuel directly injected during compression of the charge controls ignition. A variable valve actuator for opening and closing an intake valve extends control over charge pressure and temperature to extend suppression of auto-ignition of the charge. Fuel injection strategy and variable valve actuation are subject to a control strategy to extend the benefits of premixed combustion. | 03-12-2015 |
| 20150083071 | CONTROL APPARATUS AND CONTROL METHOD FOR DIESEL ENGINE - A control apparatus for a diesel engine includes a neighboring temperature estimating section which estimates a temperature of a neighborhood of a glow plug that heats an interior of a cylinder upon startup, and a supercharging pressure control section which controls a supercharging pressure in such a way that a rotation fluctuation of the engine does not increase, on the basis of the estimated temperature of the neighborhood of the glow plug. | 03-26-2015 |
| 20150083072 | CONTROL DEVICE OF COMPRESSION-IGNITION ENGINE - A control device of a compression-ignition engine is provided. The control device includes the engine having a cylinder, an exhaust gas recirculation system for introducing exhaust gas into the cylinder, and a controller for operating the engine by compression-ignition combustion of mixture gas inside the cylinder within a predetermined compression-ignitable range on a low engine load side. Within the compression-ignitable range, the controller sets an EGR ratio higher as the engine load becomes lower, and the controller sets the EGR ratio to a predetermined highest EGR ratio when the engine load is at a specific load that is on the low engine load side within the compression-ignitable range. When the engine load is lower than the specific load, the controller sets the EGR ratio to be lower than the highest EGR ratio. | 03-26-2015 |
| 20090031985 | Premixed Compression Ignition Type Engine and Method of Controlling Intake Air Thereof - An intake passage ( | 02-05-2009 |
| 20090320786 | Dual fuel system - The present invention is directed to a dual fuel system and a dual fuel system assembly where liquid LPG and diesel are mixed and then distributed via the common rail to the combustion chambers. The liquid fuel mixture remains in a liquid state and under pressure for introduction to the combustion chambers. With the preferred embodiment of the dual fuel system, only minor changes are required to the diesel engine without altering the manufactures specifications and voiding the manufacturer's warranties. The resultant combustion of the liquid fuel mixture provides a cleaner emission and relatively cheaper vehicle operational costs. | 12-31-2009 |
| 20150034042 | CONTROL SYSTEM AND METHOD FOR DUAL FUEL ENGINES - Control systems comprising electronic control modules ( | 02-05-2015 |
| 20150101563 | METHOD AND APPARATUS FOR SEQUENTIAL CONTROL OF AIR INTAKE COMPONENTS OF A GAS-FUELED COMPRESSION IGNITION ENGINE - A method of controlling components in an air intake system for an internal combustion engine ( | 04-16-2015 |
| 20150300247 | NATURAL GAS ENGINE AND OPERATION METHOD FOR NATURAL GAS ENGINE - A natural gas engine in which natural gas fuel is injected into an intake system passage, diesel fuel serving as an ignition source is injected into a cylinder, and when igniting the natural gas fuel, the natural gas fuel is combusted by compression ignition of the diesel fuel that has been injected into the cylinder without the use of a spark ignition system. The engine has a mechanism that introduces exhaust gas into a cylinder during an intake stroke. | 10-22-2015 |
| 20150369228 | CRYOGENNIC LIQUEFIED GAS INTAKE/DISCHARGE VALVE BODY, RECIPROCATING PUMP, AND FUEL GAS SUPPLY DEVICE - A fluid intake/discharge valve body for suction of a cryogenic liquefied gas fluid into a cylinder liner and discharge of the gas fluid with a piston, includes: a valve seat body including a fluid supply portion to supply the fluid and a fluid exhaust portion; an intake valve biased against the fluid supply portion; and a discharge valve biased against the fluid exhaust portion. The fluid supply portion includes a supply pathway connected to a supply pipe; a dividing wall including intake holes facing the intake valve; and a counterbore recessed portion on the dividing wall to surround the intake holes. The intake valve abuts an edge of the recessed portion when biased against the fluid supply portion. The discharge valve receives fluid pressure from a side of the discharge hole including a recessed portion disposed in a region wider than an outer periphery of the discharge hole. | 12-24-2015 |
| 123027000 | Gas engines (diesel type) convertible from liquid to gas or operable with liquid and gas | 6 |
| 20090025678 | Trinity pneumatic energy systems - The invention is a process of components from existing technologies connected together in a manner that provides an alternative means of providing power to an internal combustion without the utilization of fossil or nuclear fuels as the primary means of power thus reducing or eliminating the adverse effects of the combustion process on the ecology and environment. | 01-29-2009 |
| 20090095250 | Homogenous charge compression ignition engine and controlling method of the engine - A controller sets a negative valve overlap period, during which both of an intake valve and an exhaust valve are closed, such that not all the burned gas is discharged from the combustion chamber. When switching the combustion mode from the spark ignition combustion to the HCCI combustion, the controller executes following operations a), b), and c): | 04-16-2009 |
| 20090199813 | Premixed Compression Ignition Type Engine And Method Of Controlling Intake Air Thereof - An intake passage ( | 08-13-2009 |
| 20090235896 | Diesel Cycle Internal Combustion Engine - A diesel cycle internal combustion engine can be operated with a variety of fuels having different boiling points and different viscosity-temperature characteristic curves, with a fuel circuit that includes a fuel tank, a fuel pump, a fuel line, at least one fuel filter, a high-pressure pump, an injection system device and a return line to return fuel to the fuel tank, where a control valve is provided in the return line for dividing or diverting the fuel flow to the fuel tank and/or to the fuel filter, and where the fuel division or diversion is undertaken as a function of the viscosity of the fuel in use such that the fuel filter will thence be heated to a temperature based on heat transfer from the fuel in use, and further where a pressure relief valve is provided between the fuel filter and the high-pressure pump. | 09-24-2009 |
| 20090283068 | FUEL FILTER ASSEMBLY WITH PRESSURE SENDING UNIT - A fuel filter assembly having a pressure sending unit for filtering and monitoring fuel and fuel pressure for diesel engines and the like comprising a filter head, a spin-on element and collection bowl. The filter head is fastened to an engine or other suitable structure by flange, bolts and supports the fuel filter assembly by monitoring fuel pressure by utilizing a pressure sending unit in fluid communication with an outlet port on the filter head. Preferably, filter head is a die cast head and includes therein typical inlet port, outlet port, and connected respectively thereto, inlet chamber and outlet chamber. Filter head is a generally circular structure having a flat annular mounting surface. The filter head may further comprises vent ports, vacuum switch ports or both, which are in fluid communication with outlet ports and return check valve ports that are in fluid communication with inlet ports. Still further, filter head is in fluid communication with a pressure sending unit, which is in electrical communication with a pressure monitoring device or similar warning system. | 11-19-2009 |
| 20100043745 | PREMIXED COMPRESSION IGINITION TYPE ENGINE AND METHOD OF CONTROLLING THE SAME - A premixed compression ignition type engine is operated while change over between spark ignition combustion and compression ignition combustion. This engine has a negative overlap period during steady operation under compression ignition combustion. In the same cylinder, a valve-closing timing of an exhaust valve during steady operation under spark ignition combustion is retarded with respect to the valve-closing timing thereof after the change over. In a case where an intake valve is first changed over after start of the change over from spark ignition combustion to compression ignition combustion, the valve-opening timing of the intake valve during a change over period from spark ignition combustion to compression ignition combustion is in an advanced state with respect to the valve-opening timing thereof during steady operation under spark ignition combustion. | 02-25-2010 |
| 20100077988 | HYDROGEN-ONLY 6-STROKE ENGINE - There are no prospects for engines using hydrogen as fuel to be put to practical use due to significant small output, knocking, and backfire. An object of the present invention is to obtain a stable automobile engine at high drive that can be commercially put to practical use. A hydrogen-only 6-stroke engine realizing high output by 6-strokes for premixing two to seven atmospheric pressure or high pressure hydrogen and air at equivalent weight, spraying the pre-mixture into a cylinder cooled by filling the cylinder with cold air in advance, spraying, compressing, and exploding the mixture, discharging the mixture from a lower exhaust hole, and discharging remaining waste gas from an upper exhaust hole is proposed. | 04-01-2010 |
| 20100162991 | HCCI COMBUSTION MODING STATE CONTROL FOR FUEL ECONOMY AND SEAMLESS TRANSITIONS - A method and system for controlling an engine includes a homogeneous charge compression ignition (HCCI) operating zone boundary module determining a first HCCI operating boundary and a fuel rate module determining a first fuel rate from an operator input. The system also includes a switch module modifying the first HCCI operating boundary to a modified boundary in response to a measured mass airflow, cam positions and the first HCCI operating boundary. The system also includes a combustion control module operating the engine in a spark ignited mode when a second fuel rate request is outside the modified boundary. | 07-01-2010 |
| 20120103303 | MARINE ENGINE LUBRICATION - Trunk piston marine engine lubrication, when the engine is fueled by heavy fuel oil, is effected by a composition comprising a major amount of an oil of lubricating viscosity and a minor amount of one or more phenolic compounds comprising distilled cashew nut shell liquid or hydrogenated distilled cashew nut shell liquid. Asphaltene precipitation in the lubricant, caused by the presence of contaminant heavy fuel oil, is prevented or inhibited. | 05-03-2012 |
| 20120125288 | HIGH-EFFICIENCY LINEAR COMBUSTION ENGNE - Various embodiments of the present invention are directed toward a linear combustion engine, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a combustion section disposed in a center portion of the cylinder; a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the combustion section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the combustion section and a hollow back section comprising a gas spring that directly provides at least some compression work during a compression stroke of the engine; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke; wherein the engine includes a variable expansion ratio greater than 50:1. | 05-24-2012 |
| 20120167858 | DIESEL ENGINE FOR VEHICLE - The disclosure provides a diesel engine, which includes an engine body mounted in a vehicle and having a cylinder to be supplied with fuel containing diesel fuel as its main component, a geometric compression ratio ε of the cylinder being set within a range of 12:1 to 15:1, and an EGR system for allowing a part of burned gas to exist inside of the engine body cylinder when the engine body is at least in a particular operating state where an engine load and an engine speed are relatively low. The EGR system includes an EGR passage at least partially formed inside the engine body, and having a predetermined or shorter passage, an EGR control valve provided in a course of the EGR passage and for adjusting a flow rate of the burned gas inside the EGR passage, and a controller for controlling an opening of the EGR control valve. | 07-05-2012 |
| 20140130771 | HIGH-EFFICIENCY LINEAR COMBUSTION ENGINE - Various embodiments of the present invention are directed toward a linear combustion engine, comprising: a cylinder having a cylinder wall and a pair of ends, the cylinder including a combustion section disposed in a center portion of the cylinder; a pair of opposed piston assemblies adapted to move linearly within the cylinder, each piston assembly disposed on one side of the combustion section opposite the other piston assembly, each piston assembly including a spring rod and a piston comprising a solid front section adjacent the combustion section and a gas section; and a pair of linear electromagnetic machines adapted to directly convert kinetic energy of the piston assembly into electrical energy, and adapted to directly convert electrical energy into kinetic energy of the piston assembly for providing compression work during the compression stroke. | 05-15-2014 |
| 20140261297 | INTERNAL COMBUSTION ENGINES - An engine including at least two piston and cylinder assemblies that, when operating with a fuel savings cycle, establish at the end of the simultaneous compression strokes a charge of compressed air in one cylinder of one assembly and a charge of compressed air fuel mixture in the other cylinder of the other assembly. When the air fuel mixture is ignited, the high pressure conditions in the other cylinder are immediately communicated through a passage to the one cylinder to accomplish a double expansion during the simultaneous power drive strokes thus using much of the pressure energy before exhaust occurs by the pistons themselves. The improvement comprises changing the other assembly which has the charge of compressed air fuel mixture therein between the two piston and cylinder assemblies in a predetermined pattern as, for example, an operative alternation between the two piston and cylinder assembles. | 09-18-2014 |
| 20140331959 | Method of Estimating Duration of Auto-Ignition Phase in a Spark-Assisted Compression Ignition Operation - A combustion engine system in one embodiment includes a combustion engine, at least one controllable component operably connected to the combustion engine, at least one sensor configured to sense a parameter associated with the combustion engine, and an electronic control unit (ECU) operably connected to the at least one controllable component and the at least one sensor, wherein the ECU is configured to determine a temperature of an unburned mixture based upon the sensed parameter, and control the at least one controllable component based upon the determined temperature. | 11-13-2014 |
| 20140360458 | INTERNAL COMBUSTION ENGINE WITH PAIRED, PARALLEL, OFFSET PISTONS - An internal combustion engine; wherein at least two cylinders continuously communicate via the cylinder head; and wherein the connecting rod in one cylinder is offset from the connecting rod in the second cylinder by an angle between 1 and 90 degrees as measured from the crankshaft. | 12-11-2014 |
| 20150020765 | COMBUSTION BOWL OF PISTON - A piston for a compression ignition internal combustion engine includes a piston body having an outer cylindrical surface defined along a longitudinal piston axis. A piston includes a combustion face defining a combustion bowl including an inner bowl surface, an inner rim portion and an outer rim portion. The combustion face includes a cross-sectional profile of rotation about the longitudinal piston axis. A first profile of the profile of rotation includes a convex curve segment, a linear segment outboard the convex curve segments and a first set of concave curve segments outboard the linear segment. The first set of concave curve segments defines a first radius of curvature. A second profile is provided outboard the first profile and includes a second set of concave curve segments. The second set of concave curve segments defines a second radius of curvature greater than the first radius of curvature. | 01-22-2015 |
| 20150040856 | SHIP, FUEL GAS SUPPLY APPARATUS, AND FUEL GAS SUPPLY METHOD - A ship includes a main pipe that guides CNG whose pressure is increased by an LNG pump to the engine; a pressure sensor that measures the pressure of CNG to be supplied to the engine; a pressure adjustment valve that adjusts the pressure of the CNG to a set pressure according to engine load; a differential pressure sensor that measures a differential pressure before and after the pressure adjustment valve; and a buffer tank that absorbs a variable pressure of the CNG in the main pipe. The discharge pressure of the LNG pump is controlled such that the differential pressure is increased when the pressure is low, and the differential pressure is decreased when the pressure is high. | 02-12-2015 |
| 20150053171 | INTERNAL COMBUSTION ENGINE WITH HIGH TEMPERATURE FUEL INJECTION - Set forth herein are apparatuses and systems that utilize high temperature fuel injection to eliminate knocking within a combustion systems, and more particularly internal combustion engines. In some embodiments, the combustion system of the present invention can eliminate knocking through the use of high compression ratios and high intake boost pressures. The combustion system can have a high exhaust gas recirculation (EGR) tolerance, as well as an increased range of fuel-air ratio with improved ignitability and increased combustion speed of the system. In some embodiments, combustion in the present invention takes place using a compression ignition process, a spark assisted compression ignition process or a combination thereof. | 02-26-2015 |
| 20150068490 | MULTI-FUEL ENGINE WITH VARIABLE VALVE TIMING - In a compression ignition multi-fuel engine employing both port/intake manifold injection of fuel and in-cylinder injection of fuel, the recirculation of exhaust gas to the engine induction system is used to control the temperature and to set the reactivity of an air/fuel charge introduced to the engine for combustion. Fuel directly injected during compression of the charge controls ignition. A variable valve actuator for opening and closing an intake valve extends control over charge pressure and temperature to extend suppression of auto-ignition of the charge. Fuel injection strategy and variable valve actuation are subject to a control strategy to extend the benefits of premixed combustion. | 03-12-2015 |
| 20150083071 | CONTROL APPARATUS AND CONTROL METHOD FOR DIESEL ENGINE - A control apparatus for a diesel engine includes a neighboring temperature estimating section which estimates a temperature of a neighborhood of a glow plug that heats an interior of a cylinder upon startup, and a supercharging pressure control section which controls a supercharging pressure in such a way that a rotation fluctuation of the engine does not increase, on the basis of the estimated temperature of the neighborhood of the glow plug. | 03-26-2015 |
| 20150083072 | CONTROL DEVICE OF COMPRESSION-IGNITION ENGINE - A control device of a compression-ignition engine is provided. The control device includes the engine having a cylinder, an exhaust gas recirculation system for introducing exhaust gas into the cylinder, and a controller for operating the engine by compression-ignition combustion of mixture gas inside the cylinder within a predetermined compression-ignitable range on a low engine load side. Within the compression-ignitable range, the controller sets an EGR ratio higher as the engine load becomes lower, and the controller sets the EGR ratio to a predetermined highest EGR ratio when the engine load is at a specific load that is on the low engine load side within the compression-ignitable range. When the engine load is lower than the specific load, the controller sets the EGR ratio to be lower than the highest EGR ratio. | 03-26-2015 |
| 20090031985 | Premixed Compression Ignition Type Engine and Method of Controlling Intake Air Thereof - An intake passage ( | 02-05-2009 |
| 20090320786 | Dual fuel system - The present invention is directed to a dual fuel system and a dual fuel system assembly where liquid LPG and diesel are mixed and then distributed via the common rail to the combustion chambers. The liquid fuel mixture remains in a liquid state and under pressure for introduction to the combustion chambers. With the preferred embodiment of the dual fuel system, only minor changes are required to the diesel engine without altering the manufactures specifications and voiding the manufacturer's warranties. The resultant combustion of the liquid fuel mixture provides a cleaner emission and relatively cheaper vehicle operational costs. | 12-31-2009 |
| 20150034042 | CONTROL SYSTEM AND METHOD FOR DUAL FUEL ENGINES - Control systems comprising electronic control modules ( | 02-05-2015 |
| 20150101563 | METHOD AND APPARATUS FOR SEQUENTIAL CONTROL OF AIR INTAKE COMPONENTS OF A GAS-FUELED COMPRESSION IGNITION ENGINE - A method of controlling components in an air intake system for an internal combustion engine ( | 04-16-2015 |
| 20150300247 | NATURAL GAS ENGINE AND OPERATION METHOD FOR NATURAL GAS ENGINE - A natural gas engine in which natural gas fuel is injected into an intake system passage, diesel fuel serving as an ignition source is injected into a cylinder, and when igniting the natural gas fuel, the natural gas fuel is combusted by compression ignition of the diesel fuel that has been injected into the cylinder without the use of a spark ignition system. The engine has a mechanism that introduces exhaust gas into a cylinder during an intake stroke. | 10-22-2015 |
| 20150369228 | CRYOGENNIC LIQUEFIED GAS INTAKE/DISCHARGE VALVE BODY, RECIPROCATING PUMP, AND FUEL GAS SUPPLY DEVICE - A fluid intake/discharge valve body for suction of a cryogenic liquefied gas fluid into a cylinder liner and discharge of the gas fluid with a piston, includes: a valve seat body including a fluid supply portion to supply the fluid and a fluid exhaust portion; an intake valve biased against the fluid supply portion; and a discharge valve biased against the fluid exhaust portion. The fluid supply portion includes a supply pathway connected to a supply pipe; a dividing wall including intake holes facing the intake valve; and a counterbore recessed portion on the dividing wall to surround the intake holes. The intake valve abuts an edge of the recessed portion when biased against the fluid supply portion. The discharge valve receives fluid pressure from a side of the discharge hole including a recessed portion disposed in a region wider than an outer periphery of the discharge hole. | 12-24-2015 |
