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| Number | Title | Issue Date |
| 7264181 | Fuel injection valve with restriction wall, and internal combustion engine equipped therewith Using a swirl type fuel injection valve, a concentrated spray area and a thin spray area are formed, the positions thereof are adjusted, and the spray is made to conform to the geometric shape of the engine and mounting position of the fuel injection valve, so as to... | 09/04/2007 |
| 7261281 | Carburetor A carburetor including a mixture channel and an air channel that are separated from one another, wherein a fuel opening opens into the mixture channel. A throttle element is rotatable about an axis of rotation that extends transverse of the direction of flow in the ... | 08/28/2007 |
| 7240669 | Method of operating an internal combustion engine with a dual fuel injection system In a method of operating an internal combustion engine by supplying a gaseous fuel from a gaseous fuel tank to a combustion air feed line in which a compressor is arranged to the engine, part of the gaseous fuel is added to the combustion air feed line upstream of t... | 07/10/2007 |
| 7219634 | Spark ignition engine control device For the purpose of improving the fuel efficiency by lean combustion and enhancing the fuel efficiency improvement effects by performing compression ignition efficiently in some cylinders, a multi-cylinder spark ignition engine is constructed such that exhaust gas, t... | 05/22/2007 |
| 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 |
| 7182050 | Control device for spark-ignition engine The invention is intended to provide improved emission-cleaning performance by use of a three-way catalyst alone, without the need for a lean NOx catalyst, while ensuring a fuel economy improvement effect of lean burn operation. A multicylinder spark-ignition engine... | 02/27/2007 |
| 7165540 | Dual and hybrid EGR systems for use with turbocharged engine EGR systems for an internal combustion engine configured to operate using multiple-staged turbochargers, or a pair of single stage turbochargers, to provide exhaust gas recirculation to meet emissions requirements while not affecting engine performance. One or two E... | 01/23/2007 |
| 7134427 | Delivery of organomolybdenum via vapor phase from a lubricant source into a fuel combustion system A method and combustion system for reducing the formation of intake manifold deposits, such as including intake valve valves, and exhaust valve deposits in combustion engines by delivery of an organomolybdenum source from the vapor phase of an engine lubricant into ... | 11/14/2006 |
| 7090204 | Carburetor arrangement A carburetor arrangement for a two-stroke engine (1) is for a portable handheld work apparatus such as a motor-driven chain saw, cutoff machine or the like and has an intake channel (22). The intake channel (22) is partitioned by a partition wal... | 08/15/2006 |
| 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 |
| 7011298 | Intake device An intake device having an intake channel that includes an intake channel section is provided. A butterfly valve is pivotably mounted in the intake channel section. A dividing wall is disposed downstream of the butterfly valve and divides the intake channel section ... | 03/14/2006 |
| 6941926 | Air intake system for an internal combustion engine There is disclosed herein an improved air and fuel intake system for a high performance internal combustion engine for installing on a supercharger or the intake manifold of the engine. The air intake system is attached to the mounting surface of the supercharger or... | 09/13/2005 |
| 6921095 | Hand trolley with winch operated lifting carriage A hand trolley includes a chassis formed from side frames comprising parallel frame members, wheels and a base platform provided with a load lifting carriage having a lifting surface. The carriage can be raised from a low position on the base platform to an elevated... | 07/26/2005 |
| 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 |
| 6907859 | Internal combustion engine with elevated expansion ratio An Elevated Expansion-Ratio Internal Combustion Engine has a substantially standard repeating four-stroke sequence for each cylinder, and the Engine includes for each cylinder: an intake valve, a combustion-gas exhaust valve, and a vapor return valve. A return manif... | 06/21/2005 |
| 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 |
| 5967100 | Combustion process for compression ignition engines A combustion process is described, suitable for use in piston internal combustion engines, wherein two separate mixtures are used, one fuel leaner and one fuel richer than the minimum ignition delay mixture ratio. When the richer mixture is injected into ... | 10/19/1999 |
| 5950592 | Spark ignition two-cycle internal combustion engine with sub-combustion chamber A highly efficient spark ignition two-cycle internal combustion engine is provided which assures stable and excellent combustion over a wider operation region of the engine. The spark ignition two-cycle internal combustion engine includes a sub-combustion... | 09/14/1999 |
| 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 |
| 5224450 | Multi-fuel precombustor unit A multi-fuel precombustor unit having a housing with an internal precombustion chamber and a passage communicating between the precombustion chamber and the main combustion chamber of the engine on which the precombustor unit is installed, the unit having... | 07/06/1993 |
| 5081969 | Ignition combustion pre-chamber for internal combustion engines with constant stoichiometric air-fuel mixture at ignition An ignition combustion pre-chamber for igniting an air-fuel mixture in an internal combustion engine which operates in conjunction with an engine management system to maintain an ideal stoichiometric air-fuel ratio in the pre-chamber throughout the comple... | 01/21/1992 |
| 4892070 | Technique and spark plug to ignite very lean fuel air mixtures, particulary for gas engines A method and a spark plug construction to ignite very lean fuel air mixtures with the aid of an ignition chamber with separate ignition, which is arranged in the main combustion chamber of an internal combustion engine, connected to the main combustion ch... | 01/09/1990 |
| 4756285 | Combustion process for internal combustion engine For a combustion procedure for internal combustion engines, in which a fuair mixture with back-fed exhaust gas is introduced into a combustion chamber, a highly-combustible fuel-air mixture without back-fed exhaust gas in introduced into at least one pre... | 07/12/1988 |
| 4708118 | Fuel injected internal combustion engine pollutant control system An internal combustion engine having three valves per cylinder includes a novel fuel injector that produces a heated 30% liquid/70% vapor fuel mixture at the injector's outlet. This heated fuel mixture combines with air heated to a temperature within the ... | 11/24/1987 |
| 4696270 | Combustion process for internal combustion engine For a combustion procedure for internal combustion engines, in which a fuair mixture mixed with back-fed exhaust gas is introduced into a combustion chamber, a highly-combustible fuel-air mixture without back-fed exhaust gas in introduced into at least o... | 09/29/1987 |
| 4641616 | Internal combustion engine Internal combustion engine having a main combustion chamber (26) and a subsidiary combustion chamber (30) interconnected by a passageway (32) having a flow control element (34) arranged therein to cyclically vary the extent of communication provided betwe... | 02/10/1987 |
| 4576134 | Fuel supply control method for internal combustion engines capable of improving accelerability of the engine from an idling region thereof A fuel supply control method for an internal combustion engine having exhaust gas purifying means arranged in its exhaust passage, in which a plurality of predetermined basic fuel quantity values corresponding, respectively, to different predetermined val... | 03/18/1986 |
| 4471742 | Fuel supply control method for an internal combustion engine equipped with a supercharger A fuel supply control method for electronically controlling the fuel supply to an internal combustion engine equipped with a supercharger. Pressure in the intake passage downstream of a throttle valve arranged therein is detected by first and second press... | 09/18/1984 |
| 4433660 | Fueling system for internal combustion engine A device for supplying flash evaporated fuels directly to the combustion chamber of an internal combustion engine includes a housing that is secured to the engine adjacent the combustion chamber and a liquid fuel holding chamber within the housing that is... | 02/28/1984 |
| 4418674 | Electronic fuel injection control system for multi-cylinder internal combustion engines A plurality of fuel injection valves are all opened at the same time to supply fuel to all the cylinders of the engine, immediately upon closing of the starting switch. None of the fuel injection valves is opened until after the pistons of all the cylinde... | 12/06/1983 |
| 4414939 | Method of and apparatus for preparing a fuel mixture for an internal combustion engine Method of and apparatus for preparing a fuel mixture for spark-ignition engines with a sectional combustion space comprising a minor combustion chamber into which a rich fuel mixture is fed through a minor duct, and a major combustion chamber into which a... | 11/15/1983 |
| 4333429 | Internal combustion engine A carburetor for a multi-cylinder internal combustion engine which has for each cylinder a main combustion chamber defined above the piston in the cylinder and a sub-combustion chamber defined above the main combustion chamber and communicating with the l... | 06/08/1982 |
| 4294205 | Internal combustion engine A carburetor for a multi-cylinder internal combustion engine which has for each cylinder a main combustion chamber defined above the piston in the cylinder and a sub-combustion chamber defined above the main combustion chamber and communicating with the l... | 10/13/1981 |
| 4271800 | Apparatus for charging an internal combustion engine A rotary valve is utilized to accomplish stratified charging of an internal combustion engine. The port in the valve communicates first with a source of non-enriched gases and thereafter with a source of carbureted gases during the intake or suction strok... | 06/09/1981 |
| 4259932 | Internal combustion engine control system An apparatus and method for improving the combustion process of an internal combustion engine is disclosed. A prechamber containing a combustible mixture is designed to generate a torch emanating therefrom upon ignition; the torch is controlled to extend ... | 04/07/1981 |
| 4236490 | Internal combustion engine A two-stroke cycle engine is provided with valveless exhaust and inlet ports in a cylinder wall. A piston is mounted for reciprocal movement in the cylinder. A precombustion chamber is formed in the piston, which communicates with the combustion chamber a... | 12/02/1980 |
| 4194472 | Exhaust gas recirculation system of a multi-cylinder internal combustion engine Disclosed is a multi-cylinder engine having auxiliary valves in addition to intake and exhaust valves. A common exhaust gas passage is formed in the cylinder head and is connected to each of cylinders via the corresponding branches. Each of the auxiliary ... | 03/25/1980 |
| 4192265 | Combustion promoting device of a multi-cylinder engine Disclosed is a multi-cylinder engine having auxiliary valves, in addition to intake and exhaust valves. Each of the cylinders is connected to a common accumulation chamber via corresponding branches. Each of the auxiliary valves is arranged in its respect... | 03/11/1980 |
| 4183343 | Internal combustion engine and a method of operating an internal combustion engine Disclosed is an internal combustion engine having a combustion chamber. A squish area is formed in the combustion chamber between the peripheral portion of the inner surface of the cylinder head and the peripheral portion of the top surface of the piston.... | 01/15/1980 |
