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| Number | Title | Issue Date |
| 7856956 | Spark ignition engine A spark ignition engine capable of operating even with a leaner air-fuel mixture to achieve stable ignition and combustion performance. An ignition plug is fitted to a cylinder head through a sleeve, and the ignition electrode of the ignition plug is disposed in a c... | 12/28/2010 |
| 7814883 | Internal combustion engine with auxiliary combustion chamber An internal combustion engine, including a main combustion chamber serving as a main combustion chamber, an auxiliary combustion chamber adjacent to the main combustion chamber and smaller in capacity than the main combustion chamber, and a partition wall between th... | 10/19/2010 |
| 7584739 | Internal combustion engine with a precombustion chamber An internal combustion engine includes neighboring main and auxiliary combustion chambers that are separated by a partition wall including a communicating passage. Ignition of an air/fuel mixture in the auxiliary combustion chamber produces a fuel torch that is jett... | 09/08/2009 |
| 7082920 | Precombustion chamber ignition device for an internal combustion engine, precombustion chamber igniter and ignition method The invention concerns an ignition device for internal combustion engine comprising: a main combustion chamber (1) fitted with a compression system; and an igniter (11) comprising a precombustion cham... | 08/01/2006 |
| 7069901 | Control apparatus for internal combustion engine and control method for internal combustion engine combustion method for internal combustion engine and direct injection engine A gasoline engine is provided which is capable of introducing a large amount of EGR gas for performing homogeneous combustion and thus offering a good fuel economy. An external EGR mechanism or an internal EGR mechanism is used to introduce an EGR gas into a combust... | 07/04/2006 |
| 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 |
| 7014086 | Ignition device for igniting a foil cartridge in an explosion-operated power tool An ignition device for igniting a foil cartridge (10) in an explosion-operated power tool includes an electrical insulator (24) arranged in the support (8), a pin-shaped electrode (25) located in the electrical insulator and having a tip ... | 03/21/2006 |
| 6901905 | Pre-combustion chamber enrichment The invention relates to a method for operating an internal combustion engine, and air/gas mixture being introduced into the working chamber thereof and ignited by means of an ignition system. The above is carried out whereby the air/gas mixture is at least temporar... | 06/07/2005 |
| 6871630 | Combined fuel injection valve/ignition plug A fuel injector-spark plug combination comprises a fuel injector for the direct injection of fuel into a combustion chamber of an internal combustion engine and a spark plug with a spark-plug insulator, a first electrode and a second electrode for igniting the fuel ... | 03/29/2005 |
| 6601560 | Method for starting and operating an internal combustion engine A method is provided for operating an internal combustion engine comprising a combustion chamber defined by the inner wall of a cylinder, a cylinder head and the upper surface of a piston moveable longitudinally within the cylinder, the engine further com... | 08/05/2003 |
| 6513483 | Pre-combustion chamber for an internal combustion engine A pre-combustion chamber assembly for an internal combustion engine is disclosed having an inner housing having a receiver for receiving a spark plug and an inlet for fuel. A connector is provided for securing the pre-combustion chamber in a spark plug we... | 02/04/2003 |
| 6390053 | Reaction chamber isolation check valve and gaseous fuel engine using same An internal combustion engine includes an engine housing that defines a main combustion chamber separated from a precombustion chamber by a flame communication passage way. A source of gaseous fuel is fluidly connected to one end of a fuel supply passage.... | 05/21/2002 |
| 6354263 | Reaction chamber check valve and gaseous fuel engine using same An internal combustion engine comprises an engine housing which defines a main combustion chamber that is separated from a precombustion chamber by a flame communication passageway. The engine housing further defines a fuel supply passage with one end and... | 03/12/2002 |
| 6209511 | Lean combustion gas engine The present invention relates to a lean combustion gas engine which receives a drive output by means of supplying and combusting gas fuel in a main combustion chamber. The lean combustion engine of the present invention comprises: a main combustion chambe... | 04/03/2001 |
| 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 |
| 5947076 | Fuel combustion assembly for an internal combustion engine having an encapsulated spark plug for igniting lean gaseous fuel within a precombustion chamber An internal combustion engine includes a precombustion member which has a number of first ignition orifices defined therein. The precombustion member further has a precombustion chamber defined therein. The precombustion member is positioned relative to t... | 09/07/1999 |
| 5791374 | Check valve for the pre-combustion chamber of an internal combustion engine A check valve assembly is adapted to be installed in a pre-combustion chamber for an internal combustion engine. The check valve includes a ball closure element which is responsive to normal fuel/air supply pressure to be held in an open position and is r... | 08/11/1998 |
| 5609130 | Non-return valve A non-return valve for a pre-combustion chamber of a gas-fueled internal combustion engine. The valve includes a body having an inlet passage and an outlet passage in fluid communication with each other via an intermediate passage of reduced diameter. An ... | 03/11/1997 |
| 5533476 | Walled precombustion chamber unit A body, having a substantially closed cell formed therewithin, has a projecting nozzle, externally threaded, for threaded engagement with the sparkplug hole in a gas engine cylinder head. The body has two passageways formed therein, each threaded, for adm... | 07/09/1996 |
| 5431140 | Clean burning pre-combustion chamber system and method for internal combustion engines A clean burning pre-combustion chamber system and method for modifying existing "dirty" natural gas engines to meet modem exhaust emissions standards includes a number of small, water-cooled pre-combustion chambers which can be threaded into the existing ... | 07/11/1995 |
| 5271365 | Jet plume injection and combustion system for internal combustion engines An improved combustion system for an internal combustion engine is disclosed wherein a rich air/fuel mixture is furnished at high pressure to one or more jet plume generator cavities adjacent to a cylinder and then injected through one or more orifices fr... | 12/21/1993 |
| 5241930 | Spark plug adapter A body, having a throughgoing bore formed therein has an intermediate land. A first portion of the bore is threaded to receive a spark plug therein, and an outer portion of the body is threaded to accommodate its insertion into a cylinder head. A channel,... | 09/07/1993 |
| 5224449 | Lean-burn internal combustion system A toroidal chamber in a piston communicating through an orifice at a top face of the piston located in an internal combustion system, such as a spark ignition engine or a compression ignition engine. The chamber arranged to receive a fuel/air mixture so t... | 07/06/1993 |
| 5085189 | Air-assisted fuel injection applied in the two-stroke engine of flame-jet ignition type An air-assisted fuel injection applied in the two-stroke engine of flame-jet ignition type which a fuel pump and fuel pressure regulator valve establish stable fuel rail pressure. With respect to each cylinder, a pair of fuel injection electromagnetic val... | 02/04/1992 |
| 5080060 | Prechamber combustion system with forced injection for two-stroke gasoline engine The present invention relates to a fuel injection system driven by compressor. The system is used in two-stroke gasoline engine, wherein high speed air flow is applied to assist in fuel atomization and injection. The system works in such a manner that a f... | 01/14/1992 |
| 4977873 | Timing chamber ignition method and apparatus A method and apparatus for timed ignition of a fuel-air mixture in internal combustion engines, incorporated therein or as a replacement unit therefor, providing an ignition chamber open into the combustion chamber, there being a catalytic igniter positio... | 12/18/1990 |
| 4864989 | Pre-combustion chamber spark plug and method of igniting lean fuel Within an internal combustion engine (including a rotary engine), an apparatus and method for the pre-combustion of a rich fuel mixture within a spark plug to ignite a leaner fuel mixture within the cylinder. Substantially undiluted gaseous pilot fuel is ... | 09/12/1989 |
| 4736718 | Combustion control system for internal combustion engines A combustion control system for internal combustion engines which includes a novel spark plug having a precombustion chamber in which a butane/air mixture injected through the plug is ignited in order to initiate and manage combustion wave propagation wit... | 04/12/1988 |
| 4524744 | Fuel system for combustion engine A fuel injection apparatus in which a closed fuel circuit is pressurized, and the amount of fuel injected is determined by the pressure in the circuit. Air intake by the engine is controlled in response to the amount of fuel injected. The fuel injection a... | 06/25/1985 |
| 4338897 | Auxiliary precombustion chamber and combustion distributor for an internal combustion engine A detachable auxiliary precombustion chamber for an internal combustion engine is adapted to fit into the spark plug bore of the cylinder head and to receive a spark plug in an open bore thereof, and includes flame distributing means projecting into the c... | 07/13/1982 |
| 4319552 | Pre-combustion system for internal combustion engines Sparkplug means for an internal combustion engine are provided with conduits to introduce pre-combustion gases directly to a mixing area adjacent the sparking electrodes. This may be by connecting the conduits into the plug directly or by connecting them ... | 03/16/1982 |
| 4254741 | Diesel engine with dual fuel injection system and method of operation The diesel engine of this invention is designed to operate on more than one fuel composition. The auto ignition temperature of each fuel composition can be the same, or it can be different. As a typical example, the engine can be operated using diesel fue... | 03/10/1981 |
| 4218993 | Method and apparatus for accomplishing flame ignition for an internal combustion engine A flaming engine system for an internal combustion engine of the Otto-cycle type comprises primary and secondary pre-ignition chambers serially interposed between an engine cylinder and a spark plug, and self-actuated of means metering high combustible fu... | 08/26/1980 |
| 4096832 | Ignition apparatus and method for an internal combustion engine An improved ignition device wherein a spark plug is provided with a torch chamber surrounding the spark gap. A first mixture of fuel-rich fuel and air is supplied to the torch chamber where it is ignited by a spark and propelled as a jet of burning fuel i... | 06/27/1978 |
| 4074664 | Fuel control system for internal combustion engines A fuel control system for internal combustion engines including a stratified charge igniter, a secondary carburetor regulating fuel flow to the igniter and common cooling means for the igniter and pre-heating means for the fuel. The pre-heating means incl... | 02/21/1978 |
| 4072134 | Apparatus for supplying rich air/fuel mixture in an internal combustion engine An auxiliary combustion chamber at least partially embedded in the cylinder head of an internal combustion engine adjacent the intake valve of a main combustion chamber and having a spark plug positioned in the auxiliary chamber and unvalved inlet and out... | 02/07/1978 |
| 4071001 | Stratified combustion engine with prechamber A stratified combustion engine provided with a prechamber having no inlet valve associated therewith, wherein the precombustion chamber comprises a first chamber communicating with a main combustion chamber, a second chamber communicating with the first c... | 01/31/1978 |
| 4006725 | Spark plug construction for lean mixture burning internal combustion engines An internal combustion engine has a main combustion chamber defined by a cylinder bore and its associated piston and a valved intake passage for introducing a lean fuel-air mixture in the combustion chamber. A novel spark plug mounted in the engine in pla... | 02/08/1977 |
| 3930471 | Internal combustion engine A torch ignition engine of reduced complexity and including novel arrangements of the cylinder heads and manifolds. Specific features of a preferred embodiment include auxiliary ignition chambers formed by cup shaped inserts retained in place by the spark... | 01/06/1976 |
