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| Number | Title | Issue Date |
| 7950364 | Prechamber for a gas engine The invention relates to a device for a prechamber unit (10) of a gas engine, comprising a prechamber unit (10) in the form of an elongated body (12) arranged to be placed in an upper part of the engine's cylinder, and where the elongated body (... | 05/31/2011 |
| 7370626 | High compression spark-ignition engine with throttle control, externally supplied ignition, and direct fuel injection into a precombustion chamber The invention relates to a spark-ignition engine with a highly structural compression ratio greater than 15:1, throttle regulation, externally supplied ignition and with direct fuel injection into a precombustion chamber, which is connected to the main combustion ch... | 05/13/2008 |
| 7198011 | Internal combustion engine There is provided a two stroke internal combustion engine comprising a cylinder and a piston. The cylinder has a cylinder head, a wall and a crankcase. The wall extends between the cylinder head and the crankcase. The cylinder head has a first opening and a second o... | 04/03/2007 |
| 7066137 | Anti detonation device and method for internal combustion engines A flame ejector device for mounting in the spark plug aperture of an internal combustion engine whereby an inner end of the device is within the combustion chamber, the device being configured to receive a fuel-air mixture charge on the compression stroke of the pis... | 06/27/2006 |
| 7021275 | Igniter for internal combustion engines operating over a wide range of air fuel ratios An igniter for ignition over a wide air/fuel ratio range. Igniter includes an igniter body including an internal cavity disposed substantially within the igniter body, an internal spark gap disposed substantially within the internal cavity, an external spark gap dis... | 04/04/2006 |
| 6694944 | Rapid compression prechamber for internal combustion engine A rapid compression device for use in initiating combustion within an internal combustion engine is disclosed. The rapid compression device employs a prechamber adapted to be in fluid communication with a main combustion chamber of the internal combustion... | 02/24/2004 |
| 6668788 | Homogenous charge compression ignition engine having a cylinder including a high compression space The present invention relates generally to the field of homogeneous charge compression engines. In these engines, fuel is injected upstream or directly into the cylinder when the power piston is relatively close to its bottom dead center position. The fue... | 12/30/2003 |
| 6478006 | Working cycle for a heat engine, especially an internal combustion engine, and an internal combustion engine The present invention relates to a working cycle for a heat engine, especially of the reciprocating piston type, having a gas as working medium, including the steps of isentropic compression of the gas, isochoric addition of heat to the gas, isentropic ex... | 11/12/2002 |
| 6305346 | Fuel injection internal combustion engine with sub-combustion chamber A spark-ignition fuel injection internal combustion engine is provided with a sub-combustion chamber in communication with a main combustion chamber. An injecting device intermittently injects mixture gas into the sub-combustion chamber. A volumetric rati... | 10/23/2001 |
| 6135084 | Device for integrated injection and ignition in an internal combustion engine The invention relates to a device for integrated injection and ignition of fuel in internal combustion engines, particularly Otto engines with separate fuel ignition. The device includes an integrated injection module (14) and ignition module (6). The ign... | 10/24/2000 |
| 6055955 | Internal combustion engine An internal combustion engine, for motor vehicles having a direct fuel injection and externally supplied ignition, which has at least one combustion chamber enclosed between a cylinder head and a reciprocating piston displaceable in a cylinder bore, the c... | 05/02/2000 |
| 5970945 | Barrier divided combustion chamber for fuel injection two-stroke engine An internal combustion engine having a combustion chamber divided into two regions by an arcuate barrier on the top of the piston and a complementary arcuate barrier formed in a cavity of the cylinder head. When the piston is at top dead center, the combu... | 10/26/1999 |
| 5806482 | In-cylinder injection internal combustion engine This invention relates to an in-cylinder injection internal combustion engine. A lower wall of a cylinder head, said lower wall defining an upper wall of a combustion chamber, is configured in the form of a pentroof composed of an intake-valve-side, tilte... | 09/15/1998 |
| 5769050 | Prechamber for diesel engine A number of embodiments of precombustion chamber configurations for two-cycle crankcase compression diesel engines. The precombustion chamber and its communicating throat are oriented so as to maintain a uniform fuel distribution in the precombustion cham... | 06/23/1998 |
| 5692468 | Fuel-injected internal combustion engine with improved combustion An internal combustion engine comprising an engine block defining a cylinder having a longitudinal axis, an upper end, and a cross-sectional area in a plane perpendicular to the axis, a piston reciprocally moveable in the cylinder along the axis, the pist... | 12/02/1997 |
| 5611307 | Internal combustion engine ignition device An ignition device for an internal combustion engine comprising a smal pre-chamber 1 having a volume of about 0.7 of the volume of an associated combustion chamber, a small outlet orifice 1a in a pre-chamber having a dimensionaless throat parameter of abo... | 03/18/1997 |
| 5560326 | Internal combustion engine An internal combustion engine comprises one or more pairs of first and second cylinders, the first cylinder having a larger swept volume than the second cylinder and respective first and second pistons reciprocable in the cylinders. The second piston has ... | 10/01/1996 |
| 5293851 | Combustion system for gas engine other than dual fuel engine A combustion system for gas, non-dual-fuel engines utilizes a torch cell having a glow plug and a fuel injector. Pilot fuel is directed to the surface of the glow plug and main fuel is supplied to the torch cell. Reduced compression ratios are permitted, ... | 03/15/1994 |
| 5163385 | Coal-water slurry fuel internal combustion engine and method for operating same An internal combustion engine fueled with a coal-water slurry is described. About 90 percent of the coal-water slurry charge utilized in the power cycle of the engine is directly injected into the main combustion chamber where it is ignited by a hot strea... | 11/17/1992 |
| 5024193 | Fuel combustion system, method, and nozzle member therefor This invention relates to a fuel combustion system for a lean burn internal combustion engine. Because of the lean fuel/air ratio, it is difficult to consistently achieve complete and thorough combustion within the main combustion chamber because of the r... | 06/18/1991 |
| 4924829 | Apparatus for torch jet assisted spark ignition Torch jet ignition is used to assist conventional spark ignition. A small (0.5-1 cc) chamber in a spark plug has an orifice (0.1-0.2 cm diameter) adjacent the spark gap to emit a torch jet into the main combustion chamber to enhance the combustion. The co... | 05/15/1990 |
| 4903656 | Gas engine A gas engine of a pre-chamber type in which a pre-chamber is arranged in communication to a main combustion chamber, an intake passage is arranged to supply lean mixture to the main chamber, a gas pipe is provided to form rich mixture by fuel gas in the p... | 02/27/1990 |
| 4788942 | Internal combustion engine using dynamic resonating air chamber An internal combustion engine includes a moving piston within a combustion chamber that is temporarily divided into two zones when the piston is at and near its minumum volume position. Fuel is confined to a first zone where the fuel is ignited to generat... | 12/06/1988 |
| 4765293 | Hybrid internal combustion reciprocating engine A low compression reciprocating internal combustion piston engine with a prechamber in the head connected to a main combustion chamber in the piston, the prechamber having an igniter, a pilot fuel injector and connecting lineal passage; the main chamber i... | 08/23/1988 |
| 4619229 | Structure for combustion chamber of auxiliary chamber type internal combustion engine An auxiliary chamber injection port providing communication between a main combustion chamber and an auxiliary combustion chamber has its axis composed of a combination of a straight line and an arc in a manner to satisfy the following relationships: θ | 10/28/1986 |
| 4522172 | Direct injection internal combustion engine of compression ignition type A direct injection internal combustion engine of a compression ignition type uses swirl injection nozzle having relatively small penetration and relies on the combination of an intake swirl and compression squish flow as well as a substantial fuel spray a... | 06/11/1985 |
| 4483290 | Compression-ignition internal combustion engine A compression-ignition internal combustion engine has a secondary combustion chamber in communication with the main combustion chamber via an injection passage extending from one end of the secondary chamber, and a fuel injection nozzle for injecting fuel... | 11/20/1984 |
| 4453513 | Internal combustion engine An externally auto-ignited four-stroke internal combustion engine which includes a combustion chamber disposed in an upper surface of a piston such that, in an upper dead-center position of the piston, the combustion chamber receives almost all of the fue... | 06/12/1984 |
| 4444166 | Method and apparatus for reducing the operating compression ratios of compression ignition engines A method and apparatus for combusting diesel, gasoline, kerosene, alcohol and other compression ignition fuels in either direct or indirect injection compression auto ignition internal combustion engines which enables such engines to operate at low compre... | 04/24/1984 |
| 4434758 | Diesel engine In a turbulence chamber diesel engine, fuel consumption, smoke and noise are reduced by a transfer port arrangement having a plano-convex lens-like cross section with rounded off edges in which a convex side is disposed inwardly toward the cylinder axis a... | 03/06/1984 |
| 4350125 | Fuel injection type internal combustion engine A fuel injection type internal combustion engine comprising a cylinder head having a flat inner wall, and a piston having a flat top face. The flat inner wall and the flat top face form a squish area therebetween. A recess having a lung shaped cross-secti... | 09/21/1982 |
| 4329956 | Diesel cycle engine having a precombustion chamber A diesel cycle internal combustion engine has at least one cylinder and a precombustion chamber formed by a cavity in a metal insert in the cylinder head of the engine the precombustion chamber being formed in two coaxial generally cylindrical parts the f... | 05/18/1982 |
| 4306526 | Internal combustion engine A method of combusting natural gas fuel in a two cycle, turbocharged internal combustion engine substantially reduces the production of nitrogen-oxygen emissions. An improved turbocharger design provides increased air charging pressure, produces a control... | 12/22/1981 |
| 4305358 | Internal combustion engine An internal combustion engine comprising a combustion chamber, an injection chamber connected thereto through an injection port, a secondary inlet passage opening to the injection chamber, and a secondary inlet valve for opening and closing the secondary ... | 12/15/1981 |
| 4210104 | Internal combustion engine An internal combustion engine comprising a combustion chamber, an injection chamber connected thereto through an injection port, a secondary inlet passage opening to the injection chamber, and a secondary inlet valve for opening and closing the secondary ... | 07/01/1980 |
| 4204484 | Auxiliary combustion chamber of internal combustion engine An internal combustion engine having an auxiliary combustion chamber is disclosed. The engine comprises a main combustion chamber defined by a cylinder, a piston reciprocably disposed in the cylinder, and a cylinder head. A main passage intercommunicates ... | 05/27/1980 |
| 4193382 | Stratified charge type combustion process for internal combustion engine and internal combustion engine utilizing same A combustion engine which may be either of the spark-ignition type or the compression-ignition type (Diesel engine) is so constructed that two separate charges having different compositions are injected into a combustion chamber during the intake stroke. ... | 03/18/1980 |
| 4178903 | Internal combustion engine with an auxiliary combustion chamber Disclosed is an internal combustion engine having no intake throttle valve and comprising a main chamber and an auxiliary chamber which are interconnected with each other via a connecting passage. An annular raised portion is formed on the inner wall of t... | 12/18/1979 |
| 4168678 | Internal combustion engine with auxiliary piston for generating turbulence An internal combustion engine is provided with an auxiliary piston reciprocating within an auxiliary chamber for generating turbulence in a gas mixture contained within a main combustion chamber. Forward motion of the auxiliary piston causes the injection... | 09/25/1979 |
| 4164915 | Conversion of gasoline to diesel engine A method and apparatus for converting a gasoline engine to a diesel engine as disclosed herein. The method involves formation of a specifically designed piston that defines a reduced combustion chamber with a reduced chamber in the cylinder head of a conv... | 08/21/1979 |
