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| Number | Title | Issue Date |
| 7331314 | Two-stroke engine A two-stroke engine has a cylinder with a combustion chamber that is delimited by a reciprocating piston that drives with a connecting rod a crankshaft rotatably supported in a crankcase. In predetermined positions of the piston, the crankcase is connected by at lea... | 02/19/2008 |
| 7243634 | Turbocharging and precombustion chamber spark plug internal combustion engine, ignition method and application The invention concerns an internal combustion engine with at least one engine member, the engine member including a combustion chamber (4) of a combustible mixture with fuel components and oxidants, an ignition system of the combustible mixture by an igniter ... | 07/17/2007 |
| 7237526 | Internal combustion engine with direct injection and sparking plug with precombustion chamber, ignition method and application The invention concerns an internal combustion engine with at least one engine member, the engine member including a combustion chamber (4) of a combustible mixture with fuel and oxidant components fitted with a compression system (9), an ignition syste... | 07/03/2007 |
| 7210447 | Ignition device with precombustion chamber coated with a refractory coating layer, for internal combustion engine, and igniter with precombustion chamber The invention concerns an ignition device for internal combustion engine, containing: a main chamber (1) designed for including a main combustible mixture, and fitted with a compression system of said mixture, and ... | 05/01/2007 |
| 7104246 | Spark ignition modifier module and method A multi-part module including a flame cone and a connector adapted to be interposed between the normal spark plug port in an internal combustion engine block and a spark plug suitable for use with the engine in question. In the method, a quantity of fuel/air mixture... | 09/12/2006 |
| 7104245 | Precombustion chamber ignition device made of a material with high thermal conductivity for an internal combustion engine, and precombustion chamber igniter The invention concerns an ignition device for internal combustion engine, containing: a main chamber (1) designed for including a main combustible mixture, and fitted with a compression system of said mixture, | 09/12/2006 |
| 7025037 | Internal-combustion engine with precombustion chamber and controlled ignition The disclosure concerns an internal combustion engine with controlled ignition having at least a combustion chamber (4), means (8, 18) for injection of fuel or an air-fuel mixture into the combustion chamber (4), ignition means (7) to gen... | 04/11/2006 |
| 6912988 | Multiple-front combustion chamber system with a fuel/air management system A combustion chamber of a positive-displacement spark-ignited internal combustion engine is divided into a main combustion chamber and a pre-combustion chamber having proximal and distal ends. The proximal end is connected to the main combustion chamber and a spark-... | 07/05/2005 |
| 6899076 | Swirl chamber used in association with a combustion chamber for diesel engines A swirl chamber used in association with a combustion chamber for diesel engines, includes a pair of sub-nozzle holes on the opposite sides of a main nozzle hole to supply a secondary air into the swirl chamber, the sub-nozzle holes being positioned such that the se... | 05/31/2005 |
| 6854439 | Prechamber combustion system An improved combustion system particularly for a larger type diesel engine featuring a prechamber with a generally cup-shaped bottom tip portion facing the engine's main combustion chamber and with a central transfer passage substantially aligned with the centerline... | 02/15/2005 |
| 6065441 | Divided chamber diesel combustion system A combustion system for a divided chamber engine that incorporates a pre-combustion chamber disposed to one side of the cylinder and that communicates with the main combustion chamber through two diverging transfer passages the open ends of which are aime... | 05/23/2000 |
| 5950593 | Gas engine with pre-combustion chamber This gas engine with pre-combustion chambers effectively uses ejection energy of flames and air-fuel mixtures ejected from the pre-combustion chambers into the main combustion chambers to shorten the combustion duration and thereby enhance performance. In... | 09/14/1999 |
| 5924402 | Pre-combustion chamber for an internal combustion engine A pre-combustion chamber for an internal combustion engine that is provided with a flow enhancing member which located in the interior of the pre-combustion chamber and permits the pre-combustion chamber to absorb additional heat energy during the combust... | 07/20/1999 |
| 5799637 | Rocket effect sparking plug A spark plug is provided for internal combustion engines in which a tapered chamber or thrust nozzle is provided that terminates at the spark gap. The thrust nozzle is provided with a plurality of openings whereby fuel/air mixture is drawn from the main c... | 09/01/1998 |
| 5746173 | Divided combustion chamber for diesel engine In a divided combustion chamber for diesel engine, a main combustion chamber (2) communicates with a sub-chamber (5) through a communication hole (6), the communication hole (6) being composed of a main communication hole (7) and sub communication holes (... | 05/05/1998 |
| 5555867 | Swirl flow precombustion chamber A combustion system of an internal combustion engine includes a main combustion chamber and a swirl flow precombustion chamber connected by a communicating passage. The communicating passage is connected tangentially to the precombustion chamber so as to ... | 09/17/1996 |
| 5392744 | Precombustion chamber for a double overhead camshaft internal combustion engine A diesel engine (10) has a precombustion chamber (30) with four circumferentially spaced and angled transfer passages (60, 61) leading to the main combustion chamber (44). Each transfer passage (60, 61) is tapered to provide a larger lower end (62) facing... | 02/28/1995 |
| 5307773 | Squish structure for spark ignition engine A number of embodiments of combustion chamber configurations for internal combustion engines incorporating squish areas for promoting turbulence and rapid flame propagation in the main combustion chamber volume. A pre-combustion chamber volume is formed i... | 05/03/1994 |
| 5111786 | Air cell for an internal combustion engine An internal combustion engine having an air cell combustion system includes a cylinder block having at least one bore with a piston reciprocably housed therein, and a cylinder head attached to a cylinder block, with the cylinder block, piston and cylinder... | 05/12/1992 |
| 5105781 | Air-compressing internal combustion engine with self-ignition, with a main combustion space and an insert adjoining the latter, accommodated in the cylinder head and having an antechamber An air-compressing internal combustion engine with oblique injection into an antechamber having a sphere-like combustion space and conduit of arranged offset relative to one another. A spheroid impact head with a cup shaped recess on the underside thereof... | 04/21/1992 |
| 5105780 | Ignition assisting device for internal combustion engines A capsule, the interior volume of which is an ignition chamber, is provided with an engine to improve ignition. The capsule has an orifice so the ignition chamber can communicate with a main combustion chamber of the engine. Often, the capsule is connecte... | 04/21/1992 |
| 5067458 | Fuel combustion system and method of operation for an Otto-cycle internal combustion engine A fuel combustion system for an Otto-cycle internal combustion engine including a main combustion chamber and an auxiliary combustion chamber. Timing of ignition is effected by opening a control valve device during a latter portion of the compression phas... | 11/26/1991 |
| 5036669 | Apparatus and method for controlling the air/fuel ratio of an internal combustion engine In the subject invention an electronic control unit is used to control the air/fuel ratio in an engine combustion chamber in response to sensed engine parameters. More particularly, a magneto interface produces an ignition signal which is delivered to a s... | 08/06/1991 |
| 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 |
| 4926817 | Combustion chamber of subchamber type internal combustion engine An improved combustion chamber of a subchamber type of internal combustion engine defines a space extending contiguously to a subchamber injection port within a subchamber mouthpiece. A subchamber injection port control rod is disposed in the space adjace... | 05/22/1990 |
| 4762104 | Tj-jet chamber of gasoline engine A combustion chamber with a number of jet hole bores that communicate with the clearance space of the cylinder of an internal combustion engine. When the carburated mixture in the combustion chamber is ignited, the flame front bifurcates into a first port... | 08/09/1988 |
| 4676209 | Transfer passage arrangement for diesel engine having swirl chamber In order to avoid the formation of smoke and HC when the compression ratio of a swirl chamber type Diesel engine is lowered either by design or by operation in rarified atmospheres, the fuel injector is located on one side of the center axis of the swirl ... | 06/30/1987 |
| 4646695 | Device for improving the ignition of fuel-air mixtures in internal combustion engines A flame ignitor for internal combustion engines. This flame ignitor is, in one embodiment, an insert unit to be received in, for example, a conventional spark plug hole of an engine. It is to project into the combustion chamber of the engine a sufficient ... | 03/03/1987 |
| 4635598 | Swirl chamber arrangement for diesel engine or the like In a pre-chamber type diesel engine, in order to prevent droplets of liquid fuel finding their way into zones of the main combustion chamber wherein they undergo slow combustion and thus tend to form smoke, a recess is formed at the main combustion chambe... | 01/13/1987 |
| 4596214 | Combustion chamber system for kerosine internal combustion engine A combustion chamber system of a kerosine internal combustion engine including a main combustion chamber and an auxiliary combustion chamber both of which are defined in a cylinder head and are spaced from each other by a partition. A plurality of communi... | 06/24/1986 |
| 4566408 | Internal combustion engine The present disclosure relates to internal combustion engines of the kind comprising two working cylinders arranged in vertical side-by-side parallel relationship, there being two oppositely working pistons in each cylinder, and the movement of the four p... | 01/28/1986 |
| 4559911 | Modification of diesel engine precombustion chamber to attenuate detonation and improve combustion The precombustion chamber of a diesel engine is modified to incorporate an acoustical attenuator therein. Since the precombustion chamber is of fixed dimensions (not changed by piston movement), the acoustic nature and modification response are very power... | 12/24/1985 |
| 4557230 | Swirl chamber for internal combustion engine An interconnecting slot is formed between a main transfer port (heated by the passage of hot gases during an expansion phase) and an auxiliary transfer passage (cooled by the passage of non atomized fuel injected into the swirl chamber with which the main... | 12/10/1985 |
| 4543917 | Internal combustion engine A two stroke diesel engine requiring a minimum of one pair of cylinders is constructable in multiple cylinder pairs. Each cylinder contains two oppositely working pistons. Four pistons drive, without rocking couples, opposite sides of a single crankshaft ... | 10/01/1985 |
| 4542724 | Flame injector for internal combustion engines A combustion aid for internal combustion engines featuring a sleeve having a forward end relative to a combustion chamber with a frusto-conical interior surface. A plurality of circumferentially spaced passages in an annular zone so that the passages are ... | 09/24/1985 |
| 4541375 | Diesel engine swirl chamber having improved multiple transfer passage arrangement An auxiliary transfer passage is offset from the trajectory along which fuel is injected so as to be located downstream of the trajectory with respect to the direction of swirl within the swirl chamber and which is sized to have a cross-sectional area wit... | 09/17/1985 |
| 4534327 | Externally ignited internal combustion engine An internal combustion engine in which each cylinder or combustion volume includes a separate ignition chamber which communicates with the main combustion chamber through a relatively narrow channel or channels. The combustible mixture is delivered to the... | 08/13/1985 |
| 4513708 | Method for igniting lean fuel-air mixtures and an apparatus to perform the method An apparatus for igniting lean fuel-air mixtures and wherein a preferably insertable ignition chamber is provided in the wall of an internal combustion engine, which ignition chamber communicates with the main combustion chamber of the internal combustion... | 04/30/1985 |
| 4491104 | Torch ignition type internal combustion engine A torch ignition type internal combustion engine has an auxiliary combustion chamber connected by a torch passage to a compact main combustion chamber. A cavity in the cylinder head forming a part of the main combustion chamber is provided with two intake... | 01/01/1985 |
| 4489686 | Torch ignition type internal combustion engine An internal combustion piston engine of the torch ignition type employs an auxiliary combustion chamber connected by a torch passage to a compact main combustion chamber. A spark plug has electrodes located adjacent the upstream end of the torch passage a... | 12/25/1984 |
