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| Number | Title | Issue Date |
| 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 |
| 6055954 | Spark ignition type internal combustion engine with sub-combustion chamber A spark ignition internal combustion engine includes a sub-combustion chamber in which gas mixture with an air-fuel ratio adapted for an operating state of the engine over a wide operating range of the engine is supplied to a combustion chamber. The amoun... | 05/02/2000 |
| 4768481 | Process and engine using compression ignition of a homogeneous fuel-air mixture A process and engine using a homogeneous mixture of fuel and air but ignited spontaneously by high mixture temperatures produced by heating and by compression of the fuel charge in which a controlled rate of combustion is obtained by adding exhaust produc... | 09/06/1988 |
| 4631917 | Air valve for improving the performance of an internal combustion engine An air valve for an internal combustion engine, said air valve comprising a valve body (10,19), a passage (27) in said body, valve means adapted to normally close said passage (27) to prevent egress therethrough of spent combustion products from said engi... | 12/30/1986 |
| 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 |
| 4361122 | Internal combustion engine with externally-supplied ignition, having one main combustion chamber per cylinder and one ignition chamber An internal combustion engine with externally supplied ignition is proposed, in which besides a main combustion chamber an ignition chamber is provided, which communicates with the main combustion chamber via a central discharge channel, which is disposed... | 11/30/1982 |
| 4359981 | High compression type internal combustion engine A high compression type internal combustion engine comprising a cylinder head having a flat inner wall, and a piston having a flat top face. The flat inner wall and the flat top face form a squish area therebetween. A recess having a lung-shaped cross-sec... | 11/23/1982 |
| 4351294 | Fluidic diode combustion chamber A fluidic diode combustion chamber for the cylinders of an internal combustion engine. The chamber comprises a passageway having an entrance and an exit in fluid communication with the cylinder immediately above its piston. The passageway is shaped and de... | 09/28/1982 |
| 4325333 | Internal combustion engine equipped with an auxiliary combustion chamber An internal combustion engine comprises a main combustion chamber and an auxiliary combustion chamber which are interconnected to each other via a connecting passage. The spark plug is arranged in the connecting passage. The engine further comprises a fir... | 04/20/1982 |
| 4291662 | Combustion chamber of an internal combustion engine equipped with an auxiliary combustion chamber An internal combustion engine comprises a main combustion chamber and an auxiliary combustion chamber which are interconnected to each other via a connecting passage. The spark plug is arranged in the connecting passage. The engine further comprises a fir... | 09/29/1981 |
| 4267806 | High compression type internal combustion engine A high compression type internal combustion engine comprising a cylinder head having a flat inner wall, and a piston having a flat top face. The flat inner wall and the flat top face form a squish area therebetween. A recess having a lung shaped cross-sec... | 05/19/1981 |
| 4237826 | Multi-cylinder internal combustion engine equipped with an accumulation chamber A multi-cylinder internal combustion engine having a plurality of cylinders, each comprising a combustion chamber and an accumulation chamber which are interconnected to each other via an accumulation valve. The accumulation chambers are interconnected to... | 12/09/1980 |
| 4237845 | Internal combustion engine with an auxiliary combustion chamber An internal combustion engine comprising a main combustion chamber and an auxiliary combustion chamber are interconnected to each other via at least one connecting passage. The auxiliary combustion chamber and the connecting passage are formed in an auxil... | 12/09/1980 |
| 4224905 | Two-cycle engine with stabilized combustion and method of operation therefor A two cycle, spark ignition internal combustion engine of the class having a combustion chamber divided into a relatively small ignition region and a larger combustion region including the cylinder and piston is defined. Substantially stoichiometric fuel-... | 09/30/1980 |
| 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 |
| 4188932 | Internal combustion engine with a secondary combustion chamber An internal combustion engine comprising a primary combustion chamber, a secondary combustion chamber communicated with the primary combustion chamber through a passage, a spark plug with electrodes extended in said passage, and means for preventing the e... | 02/19/1980 |
| 4182279 | Combustion chamber of an internal combustion engine Disclosed is a combustion chamber of an internal combustion engine. A first raised portion having a flat bottom is formed on the inner wall of the cylinder head so that a first flat squish area is formed between the flat bottom of the first raised portion... | 01/08/1980 |
| 4180044 | Torch ignition type internal combustion engine A torch ignition type internal combustion engine with no intake valve in the auxiliary combustion chamber, the engine comprising: a cylinder; a cylinder head; a reciprocating piston received snugly in the cylinder; a main combustion chamber defined betwee... | 12/25/1979 |
| 4176646 | Method of igniting in an internal combustion engine Disclosed is a method of igniting in an internal combustion engine comprising a main combustion chamber and an auxiliary combustion chamber which are interconnected to each other by a connecting passage. The spark gap of the spark plug is located in the c... | 12/04/1979 |
| 4175533 | Internal combustion engine with an auxiliary combustion chamber Disclosed is an internal combustion engine comprising a main combustion chamber and an auxiliary combustion chamber which are interconnected to each other via a connecting passage. The opening of the connecting passage is arranged to be directed to the ce... | 11/27/1979 |
| 4175531 | Internal combustion engine with an auxiliary combustion chamber Disclosed is an internal combustion engine comprising a main combustion chamber, a first auxiliary combustion chamber and a second auxiliary combustion chamber. The first auxiliary combustion chamber is connected to the main combustion chamber via a first... | 11/27/1979 |
| 4175532 | Combustion chamber of an internal combustion engine Disclosed is an internal combustion engine comprising a main combustion chamber and an auxiliary combustion chamber which are interconnected to each other via a connecting passage. An additional passage is provided for communicating the connecting passage... | 11/27/1979 |
| 4149511 | Torch ignition type internal combustion engine A torch ignition type internal combustion engine which has no intake valve in the auxiliary combustion chamber and which can effectively purge exhaust gases from the auxiliary combustion chamber to eliminate ignition failures, the engine comprising a cyli... | 04/17/1979 |
| 4149495 | Internal combustion engine with an auxiliary chamber Disclosed is an internal combustion engine with an auxiliary chamber which is connected to the main chamber via a connecting passage. The connecting passage is tangentially connected to the inner wall of the auxiliary chamber. A raised portion is formed o... | 04/17/1979 |
| 4147150 | Internal combustion engine with an auxiliary combustion chamber Disclosed is an internal combustion engine comprising a main combustion chamber and an auxiliary combustion chamber which are interconnected with each other via a first connecting passage. A second connecting passage communicating the first connecting pas... | 04/03/1979 |
| 4128092 | Internal combustion engine with an auxiliary combustion chamber Disclosed is an internal combustion engine comprising a first auxiliary combustion chamber formed in the cylinder head and connected to the main combustion chamber via a first connecting passage. The spark plug is located in the first connecting passage. ... | 12/05/1978 |
| 4125105 | Four cycle internal combustion engine An externally ignited four cycle internal combustion engine equipped with an inlet valve and an outlet valve, both valves being positioned on one side of the cylinder. A swirl (or vortex) chamber is provided within the cylinder head, the height of the swi... | 11/14/1978 |
| 4121544 | Internal combustion engine A spark plug ignited internal combustion engine in which each cylinder is provided with a turbulence chamber in which the exhaust valve is located. The cylinder head and the top of the piston cooperate during the compression stroke to define a guide chann... | 10/24/1978 |
| 4108133 | Internal combustion engine having an auxiliary combustion chamber without an intake valve An auxiliary combustion chamber shell of an internal combustion engine comprising a main combustion chamber having an intake valve and an exhaust valve, an auxiliary combustion chamber having no intake valve, a passage communicating the main and auxiliary... | 08/22/1978 |
| 4106467 | Internal combustion engine with a subsidiary combustion chamber An internal combustion engine comprising main and subsidiary combustion chambers interconnected by a connecting passage. A subsidiary chamber component providing therein the subsidiary combustion chamber is press-fitted into a recess formed in the cylinde... | 08/15/1978 |
| 4098246 | Internal combustion engine with an auxiliary combustion chamber Disclosed is an internal combustion engine with an auxiliary combustion chamber having an exhaust gas recirculating device for recirculating the exhaust gas from the exhaust system into the intake system. The auxiliary combustion chamber is connected only... | 07/04/1978 |
| 4078533 | Internal combustion engine having an auxiliary combustion chamber An internal combustion engine having a main combustion chamber and an auxiliary combustion chamber having an opening in communication with the main combustion chamber is provided with a first spark plug in the auxiliary combustion chamber and a second spa... | 03/14/1978 |
| 4064860 | Spark-ignition engine for lean air-fuel mixture A spark-ignition-type internal combustion engine having a main combustion chamber, an auxiliary combustion chamber, and a spark plug disposed in the passage interconnecting those chambers and wherein the spark plug is positioned in an enlarged portion of ... | 12/27/1977 |
| 4048973 | Internal combustion engine provided with pre-combustion chamber An internal combustion engine provided with a main combustion chamber, which is defined in the upper portion of a cylinder volume and has an intake valve and an exhaust valve, and a pre-combustion chamber free of an intake valve. In this internal combusti... | 09/20/1977 |
| 4043309 | Internal combustion engine having auxiliary combustion chamber An internal combustion engine having an auxiliary combustion chamber in communication with the main combustion chamber through a nozzle, and the discharging gap of the spark plug for ignition of the mixture is positioned adjacent the opening of the nozzle... | 08/23/1977 |
| 4041923 | Internal combustion engine of lean air-fuel mixture combustion type An internal combustion engine of lean air-fuel mixture combustion type comprising a subsidiary combustion chamber opening into a main combustion chamber via a connecting passage. A raised portion is formed on the top surface of the piston. The raised port... | 08/16/1977 |
| 4041909 | Internal-combustion engine having a sub-combustion chamber An internal-combustion engine having a combustion chamber consisting of a main combustion chamber and a sub-combustion chamber, said main combustion chamber being defined by the inner surface of the cylinder head and the top surface of the piston in the c... | 08/16/1977 |
| 4029072 | Igniting apparatus for internal combustion engines An igniting apparatus for internal combustion engines comprises a central igniting electrode disposed at the position adjacent to an opening communicating, between an auxiliary combustion chamber and a main combustion chamber, an earthed electrode consist... | 06/14/1977 |
| 4004563 | Spark ignition engine using lean air-fuel mixture In a spark-ignition engine of the type having a main combustion chamber and an auxiliary combustion chamber so as to ignite the lean air-fuel mixture, a passage intercommunicating between the main and auxiliary combustion chambers has a bent portion betwe... | 01/25/1977 |
| 4000731 | Internal combuston engines An internal combustion engine of the type having a main combustion chamber and an auxiliary combustion or precombustion chamber intercommunicated through a passage with the former for burning a lean fuel-air mixture in order to reduce the harmful emission... | 01/04/1977 |
