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| Number | Title | Issue Date |
| 7832372 | Combustion control via homogeneous combustion radical ignition (HCRI) or partial HCRI in cyclic IC engines A process is provided for enhancing homogeneous combustion and improving ignition in rotary and reciprocating piston IC engines. Physical embodiments supporting this process have secondary chambers embedded in the cylinder periphery to initiate radical ignition (“... | 11/16/2010 |
| 7493886 | Combustion control via homogeneous combustion radical ignition (HCRI) or partial HCRI in cyclic IC engines A process is provided for enhancing homogeneous combustion and improving ignition in rotary and reciprocating piston IC engines. Physical embodiments supporting this process have secondary chambers embedded in the cylinder periphery to initiate radical ignition (“... | 02/24/2009 |
| 7322321 | Engine valve assembly having holding tank with return valve and discharge valve in the valve assembly An Elevated Expansion-Ratio Internal Combustion Engine has a substantially standard repeating four-stroke sequence for each of a plurality of cylinders. The head of each cylinder has an intake valve, a combustion-gas exhaust valve, and a vapor return valve. A return... | 01/29/2008 |
| 7295917 | Method for determining a combustion chamber pressure A method for determining a combustion chamber pressure of an internal combustion engine is described, which is used for a simple and accurate correction of the determined combustion chamber pressure. For this purpose, a first time curve of the combustion chamber pre... | 11/13/2007 |
| 7231892 | Method for extending HCCI load range using a two-stroke cycle and variable valve actuation A method and system for extending the load range of Homogeneous Charge Compression Ignition (HCCI) in an internal combustion engine includes detecting a current state of the engine, detecting a load demand placed on the engine, determining if the load demand is beyo... | 06/19/2007 |
| 7216623 | Internal combustion engine with auxiliary combustion chamber An internal combustion engine comprises a main combustion chamber part, an auxiliary combustion chamber part, a first communicating passage, a second communicating passage and an igniting component. The auxiliary combustion chamber part includes first and second aux... | 05/15/2007 |
| 7117826 | Pilot oil ignition gas engine and method of operating pilot oil ignition gas engine The gas engine of the present invention has a pilot oil fuel valve, a pilot oil pump, and first and second pipes connected to a pilot oil main pipe, for each of a plurality of combustion chambers. An operating pilot oil tank and an ignition stimulant-added pilot oil... | 10/10/2006 |
| 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 |
| 7055491 | Piston-cylinder combination for a combustion engine A combustion engine with compression-initiated combustion comprises at least one cylinder in which a piston is movable axially between a lower dead center point and an upper dead center point, with a dead volume between the cylinder and the piston at the upper dead ... | 06/06/2006 |
| 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 |
| 7013864 | Fuel injector In a fuel injector for a direct-injection internal combustion engine comprising an injection nozzle, on the circumference of which a plurality of injection orifices are arranged so as to line up with one another, to form an orifice arrangement for the formation of a... | 03/21/2006 |
| 7011062 | Engine starting apparatus To attain downsizing and weight reduction of a starter motor and starting power transmission in an engine starting apparatus. The starting power transmission decelerates rotation power of the starter motor and transmits the power to a crankshaft, even in a multi-cyl... | 03/14/2006 |
| 6953020 | Control of auto-ignition timing for combustion in piston engines by prechamber compression ignition A method and system of controlling auto-ignition timing in an internal combustion engine cylinder in which the timing of auto-ignition in prechambers that are coupled to the cylinder is precisely controlled. The auto-ignition in the prechambers is produced by a comp... | 10/11/2005 |
| 6935304 | Increasing the duration of peak combustion pressure in cylinders of a diesel engine using fuel injection control strategies A diesel engine fuel injection strategy comprises injecting fuel into a cylinder (28) during a compression upstroke of a piston (30) that reciprocates within the cylinder and creating pressure sufficient to initiate combustion of the injected fuel. As ... | 08/30/2005 |
| 6931839 | Apparatus and method for reduced cold start emissions An exhaust system for an internal combustion engine having a plurality of cylinders, comprising: a exhaust manifold for providing fluid communication of exhaust of the plurality of cylinders to a catalytic converter, the exhaust manifold comprising a first exhaust p... | 08/23/2005 |
| 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 |
| 6814032 | Dual fuel engine The present invention aims to allow an arbitrary selection to be made between gas operation and diesel operation, to achieve a reduction in NOx even when in diesel operation, to allow the compression ratio to be adjusted and altered in accordance with the operating ... | 11/09/2004 |
| 6708666 | Multi-zone combustion chamber for combustion rate shaping and emissions control in premixed-charge combustion engines An apparatus and method for improving efficiency of combustion engines. At least two combustion chambers are provided by contouring the surface of a piston or a cylinder head or a combination thereof. Such a contoured piston or cylinder head controls the peak temper... | 03/23/2004 |
| 6557519 | Reciprocating machine with two sub-chambers A reciprocating machine includes a housing (12) and piston means (20) that are cyclically relatively displaceable along an axis (11) to define a variable volume working chamber (50). There is further provided air inlet means and fuel inlet means (100) adm... | 05/06/2003 |
| 6325039 | Combined engine and method for operating the same The present invention relates to a combined engine which receives a drive output by means of supplying and combusting at least one fuel selected from among a gas fuel and a liquid fuel. The engine according to the present invention comprises: a main combu... | 12/04/2001 |
| 6318335 | Operating method of an internal combustion engine and corresponding internal combustion engine The invention relates to an operating method of an internal combustion engine. According to the method, a fuel-air mixture is rapidly combusted in order to move a piston. The fuel contained in or introduced into an occluded fresh gas is evaporated in the ... | 11/20/2001 |
| 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 |
| 6206660 | Apparatus for controlling gas temperature in compressors An apparatus is provided for controlling gas temperature during compression or expansion. The apparatus comprises a chamber for containing gas, a piston for changing the volume of gas in the chamber, a plurality of atomisers for spraying liquid into the c... | 03/27/2001 |
| 6095112 | Reciprocating piston engine A reciprocating piston engine which is selectively operable in either a gas operation mode with a gaseous fuel or a diesel operation mode with a liquid fuel includes a main combustion chamber which has an inlet for receiving gas and/or air, an injection d... | 08/01/2000 |
| 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 |
| 5570670 | Two stroke internal combustion engine A two stroke internal combustion engine has two opposed pistons (8) which reciprocate in opposite directions in cylinder (4) and define a common compression chamber (6) therebetween. Blower (10) supplies scavenging air at high pressure to compression cham... | 11/05/1996 |
| 5465695 | Ignition system for internal combustion engine An ignition system for an internal combustion engine has a plurality of peripheral ignition gaps arranged at appropriate separations along the periphery of a combustion chamber and a center ignition gap disposed at a center of the combustion chamber. The ... | 11/14/1995 |
| 5351665 | Internal combustion engine A combustion chamber located in the piston of an internal combustion engine is divided by restrictions into two or more partial chambers. The ratio between the minimum distance in the restricted area and the maximum distance in concave areas of the wall o... | 10/04/1994 |
| 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 |
| 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 |
| 5237964 | Internal combustion engine with a new sequence of operation and combustion An internal combustion engine having multiple constant volume combustion chambers associated with each piston of the engine. The combustion within each of the combustion chambers is controlled to obtain fully developed combustion with high pressure result... | 08/24/1993 |
| 5156123 | Engine with variable combustion chamber An engine with a variable combustion chamber has a a first combustion chamber defined in a piston slidably disposed in a cylinder, a second combustion chamber defined in a cylinder head and communicating with the cylinder through a communication port, and... | 10/20/1992 |
| 5115775 | Internal combustion engine with multiple combustion chambers An internal combustion engine having two separate main combustion chambers isolated from the cylinder and from each other by means of a valve throttle mechanism. Combustion occurs first in one chamber, and then in the other, separated by one complete revo... | 05/26/1992 |
| 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 |
| 5103776 | Diesel engine The diesel engine includes a first combustion chamber defined by a recess in a piston top and a projection formed in the first combustion chamber. The projection stands on a bottom wall of the first combustion chamber. A second combustion chamber is forme... | 04/14/1992 |
| 5076229 | Internal combustion engines and method of operting an internal combustion engine using staged combustion An internal combustion engine and method of operation is disclosed as having a combustion chamber design which allows for staged combustion within the chambers. The internal combustion engine of the invention is designed as a split chamber, staged combust... | 12/31/1991 |
| 5069178 | Engine with variable combustion chamber An engine with a variable combustion chamber has a a first combustion chamber defined in a piston slidably disposed in a cylinder, a second combustion chamber defined in a cylinder head and communicating with the cylinder through a communication port, and... | 12/03/1991 |
| 5060609 | Internal combustion engine An internal combustion engine has first and second cylinders (12, 14), the first cylinder (12) having a larger swept volume than the second cylinder (14) and the second cylinder being formed in the crown of the first cylinder. First and second pistons (16... | 10/29/1991 |
| 5010860 | Internal combustion engine with twin combustion chambers An internal-combustion engine includes two combustion spaces for each cylinder. Each combustion space is separated from the cylinder space and has a valve to open and close a passage through which communication is established between the combustion space ... | 04/30/1991 |
| 4913111 | Turbulence generator for two-stroker spark-assisted diesel engines A combustion chamber for a spark assisted diesel engine embodying a main combustion chamber and an energy cell. Fuel is injected into the main chamber and into the energy cell and combustion is initiated in the main chamber. The energy cell communicates w... | 04/03/1990 |
