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| Number | Title | Issue Date |
| 7398743 | Compression ignition initiation device and internal combustion engine using same An internal combustion engine having a compression ignition initiation device is provided. The compression ignition initiation device includes a body defining a chamber and an outlet from the chamber. The device further includes means, within the chamber, for genera... | 07/15/2008 |
| 7287744 | Fuel conditioning apparatus A fuel conditioning system (10) comprises a housing (12) defining a chamber (14) and provided with an inlet (16) upstream of the chamber (14) and an outlet (18) downstream of the chamber (14). A hemispherical seat ( | 10/30/2007 |
| 7204225 | Internal combustion engine with auxiliary combustion chamber An internal combustion engine includes a main combustion chamber and a small auxiliary combustion chamber. The main chamber is formed by a cylinder, the undersurface of a cylinder head, and the crown of a piston. A main ignition unit is disposed in the cylinder head... | 04/17/2007 |
| 7167789 | Variable compression ratio internal combustion engine A variable compression ratio internal combustion engine is programmably configured to operate in a plurality of compression ratios. Internal combustion engines with electronically controlled engine components that include electronic valve operation are programmed to... | 01/23/2007 |
| 7140337 | Valve gear mechanism In a valve gear mechanism of an internal combustion engine, there is provided a valve opening and closing a combustion chamber, a spring device which generates a force pressing the valve toward a valve seat, a drive mechanism driving the valve in an opening directio... | 11/28/2006 |
| 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 |
| 7100567 | Method to extend lean ignition limit within internal combustion engine A method of operating an internal combustion engine is provided. The engine includes a main combustion chamber in fluid communication with a prechamber. The method comprises the step of varying the volume within the prechamber during a portion of a compression strok... | 09/05/2006 |
| 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 |
| 7063247 | Power driven equipment utilizing hydrogen from the electrolysis of water Applicant's novel invention relates to a novel hydrogen generator for supplying hydrogen to drive a hydrogen operated engine. The regulator can supply hydrogen to drive an engine for operating the cutter assembly of a lawnmower as well as supply the output of a hydr... | 06/20/2006 |
| 6918383 | Fuel control system A cold start fuel control system is disclosed for use with an internal combustion engine having a plurality of combustion chambers, a source of fuel and an intake manifold having an inlet and an outlet port connected to each combustion chamber. The system includes a... | 07/19/2005 |
| 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 |
| 6848413 | Method for homogenous charge compression ignition start of combustion control An internal combustion cylinder assembly includes a cylinder having a combustion chamber and a piston. An intake valve provides a working fluid to the combustion chamber while the piston moves from a top dead center position to a bottom dead center position. A pre-c... | 02/01/2005 |
| 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 |
| 6098588 | Injection device and combustion process for an internal combustion engine An injection device for an internal combustion engine, especially a diesel engine, with a combustion chamber (16) for each defined by piston (2), cylinder and cylinder head (1), a multi-hole injection nozzle (5) and a shroud (3) projecting from the cylind... | 08/08/2000 |
| 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 |
| 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 |
| 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 |
| 5477822 | Spark ignition engine with cylinder head combustion chamber An engine is provided with a combustion chamber that is separate from the main cylinder displacement/swept volume area and mounted in a cavity in the cylinder head and having a connection between the two by a channel of small cross-sectional area providin... | 12/26/1995 |
| 5417189 | High speed indirect injection diesel engine A diesel engine (10) has a pre-combustion chamber (30) with an angled and tapered transfer passage (60) leading to the main combustion chamber (44). The transfer passage (60) is tapered to provide a larger lower end (62) facing the main chamber (44) and s... | 05/23/1995 |
| 5309879 | Double overhead camshaft four valve diesel engine with side prechamber A four valve, double overhead camshaft diesel engine (10) has a precombustion chamber (30) with an angled and tapered transfer passage (60) leading to the main combustion chamber (44). The transfer passage (60) is tapered to provide a larger lower end (62... | 05/10/1994 |
| 5307772 | Redox catalysis of NOx in internal combustion engines The invention discloses internal combustion engines, particularly compression ignition engines such as diesel engines, having reduced nitrogen oxide emissions with concurrent reductions in particulate emissions. The invention provides a catalyst impregnat... | 05/03/1994 |
| 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 |
| 5179839 | Alternative charging method for engine with pressurized valved cell An internal combustion engine of the gasoline-burning variety has an essentially constant maximum displacement or volume. This requires compromises in design to achieve acceptable power output at full throttle and reasonable thermal efficiency at cruising... | 01/19/1993 |
| 5117788 | Apparatus for control of pressure in internal combustion engines An improved apparatus and technique for providing increased efficiency and relatively pollutant free operation of internal combustion engines. An internal combustion engine's gas cycle is refined by forming a secondary balancing non-combusting chamber wit... | 06/02/1992 |
| 5014663 | Two-stroke internal combustion engine and cylinder head for the latter A two-stroke internal combustion engine, in particular of the diesel type, which comprises at least one intake valve (10) having its seat disposed in the wall of a combustion and scavenging prechamber (13) and at least one exhaust valve (7), is characteri... | 05/14/1991 |
| 4940029 | Turbocompounded two-stroke piston engines The cylinder head (401) of a turbocompounded 2-stroke piston engine incorporates, for each cylinder (400), an indirect combustion chamber (402) which is connected to the cylinder clearance volume (413) by a passage (412). The indirect combustion chamber (... | 07/10/1990 |
| 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 |
| 4854280 | Two-stroke internal combustion engine and cylinder head for the latter A two-stroke internal combustion engine, in particular of the diesel type, which comprises at least one intake valve (10) having its seat disposed in the wall of a combustion and scavenging prechamber (13) and at least one exhaust valve (7), is characteri... | 08/08/1989 |
| 4838213 | Thermal ignition method and apparatus for internal combustion engines The compression stroke supplies a small portion of the compressed air to a considerably smaller, fixed-volume receiving chamber through a valved communication passage. Simultaneously, fuel is injected into the air stream to mix with the air with the air p... | 06/13/1989 |
| 4817388 | Engine with pressurized valved cell An internal combustion engine has an auxiliary cell connected thereto by a transfer valve. Approximately isothermally compressed gas, which may be a combustible mixture, is introduced into the cell through an input valve. A displacer piston in the cell is... | 04/04/1989 |
| 4798183 | Swirl chamber type combustion chamber for diesel engine In a swirl chamber type combustion chamber for a diesel engine having an injection passage provided for to guide the stream of combustion gas gradually spreading right and left during the injection from the swirl chamber to the main combustion chamber, a ... | 01/17/1989 |
| 4774919 | Combustion chamber importing system for two-cycle diesel engine A combustion chamber configuration and porting arrangement for a two-cycle crankcase compression diesel engine that improves scavenging. An exhaust port opens into one side of the engine cylinder bore and the scavenge ports and a precombustion chamber are... | 10/04/1988 |
| 4719884 | Combustion chamber with a domed auxiliary chamber for a spark-ignition engine The present invention relates the technology to enhance the mixing performance of air-fuel mixture in a combustion chamber with a domed precombustion chamber for a spark-ignition engine, and aims to attain the enhanced mixing performance owing to the forc... | 01/19/1988 |
| 4696269 | 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 ... | 09/29/1987 |
| 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 |
| 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 |
| 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 |
| 4545344 | Diesel engine having turbulent combustion chamber A diesel engine having a turbulent combustion chamber, a cylinder bore, a piston reciprocatingly accommodated within the cylinder bore and defining a primary combustion chamber in cooperation with the cylinder bore, a connecting throat defined therein for... | 10/08/1985 |
| 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 |
