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| Number | Title | Issue Date |
| 7353797 | Combustion chamber for internal combustion engine A geometry for an IC combustion chamber is disclosed that increases the air-fuel mixing efficiency within the chamber. The piston head includes a squish surface portion for generating a squish jet, and a bowl portion that cooperatively with the cylinder head defines... | 04/08/2008 |
| 7263985 | Exhaust emission control device in internal combustion engine and heat engine Catalyst is supported at least on a part of the combustion chamber wall of an internal combustion engine. A control is provided for controlling the fuel injection equipment of the engine so that pilot fuel injection is performed prior to main fuel injection under pr... | 09/04/2007 |
| 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 |
| 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 |
| 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 |
| 6340013 | Four-stroke internal combustion engine with recuperator in cylinder head A recuperating four-stroke internal combustion engine obtains improves Carnot efficiency by use of a new and novel cylinder head which captures thermal energy normally thrown away in the exhaust and re-introduces it to the working cycle. This result, long... | 01/22/2002 |
| 6125813 | Prechamber combustion for a rotary diesel engine A fuel injection, ignition, and combustion system for use in a rotary internal combustion engine of the diesel type and method of power extraction is provided. The fuel combustion system includes a rotary engine with a prechamber disposed in a top center ... | 10/03/2000 |
| 6073604 | Combustion chamber structure of a gas engine In the combustion chamber structure of the gas engine the combustion chamber members are formed with the sub-communication holes allowing communication between the main combustion chambers and the pre-combustion chambers and also with throat holes in whic... | 06/13/2000 |
| 5915351 | Insulated precombustion chamber An insulated pre-combustion chamber of an internal combustion engine in which a piston is disposed in a cylinder for reciprocal movement relative to the cylinder. A cylinder head is provided over the cylinder and piston to form a main combustion chamber a... | 06/29/1999 |
| 5333582 | Pre-combustion chamber gas engine This invention provides a pre-combustion chamber gas engine capable of being applied to a two-stroke gas engine using a natural gas as fuel. A gas fuel is supplied to precombustion chambers with communication ports, which allows communication between prim... | 08/02/1994 |
| 5277159 | Two stroke diesel engine A piston and cylinder arrangment for an internal combustion engine designed to run on diesel and similar fuels, comprises a cylinder defining a main combustion chamber, a piston reciprocatable within said cylinder and having a thermally insulating plate o... | 01/11/1994 |
| 5260116 | Ceramicm port liners Ceramic materials to be insert-cast are disclosed, which each contain not less than 65% by volume of aluminum titanate as a crystalline phase, and have an average particle diameter of crystals thereof being not less than 10 μm, Young's modulus of 50 to 2... | 11/09/1993 |
| 5178109 | Heat-insulating engine with swirl chambers This invention relates to a heat-insulating engine with swirl chambers which reduces a throttle loss due to the communication ports and increases the speed of a vortex flow within swirl chambers. The heat-insulating engine with swirl chambers comprises sm... | 01/12/1993 |
| 5163385 | Coal-water slurry fuel internal combustion engine and method for operating same An internal combustion engine fueled with a coal-water slurry is described. About 90 percent of the coal-water slurry charge utilized in the power cycle of the engine is directly injected into the main combustion chamber where it is ignited by a hot strea... | 11/17/1992 |
| 5095872 | Alcohol engine with combustion cavity An alcohol engine with combustion cavity of this invention includes combustion cavity blocks for constituting combustion cavities of a heat-insulating structure, disposed in a cylinder head, communication ports of a heat-insulating structure for communica... | 03/17/1992 |
| 5070833 | Heat-insulating engine with swirl chamber In a heat-insulating swirl chamber engine, subsidiary fuel is injected from subsidiary nozzles along the inner wall surfaces of swirl chambers of a heat-insulating structure from the second half of an intake stroke to the first half of a compression strok... | 12/10/1991 |
| 5069179 | Internal combustion engine An internal combustion engine is described which comprises a main combustion chamber and a secondary combustion chamber which is arranged in the cylinder head of the internal combustion engine and is connected via a shot channel to the main combustion cha... | 12/03/1991 |
| 5054443 | Heat-insulating engine with swirl chamber A heat-insulating engine with swirl chamber constructed such that a control valve of which an opening or closing can be controlled under an operation of a cam or an electromagnetic force arranged in a communication hole between a swirl chamber made of a h... | 10/08/1991 |
| 5040504 | Heat-insulating engine swirl chamber The heat-insulating engine with swirl chambers of this invention comprises thin members made of a monolithic ceramic material for forming the surface portions of swirl chambers communicating with main combustion chambers through communication ports, high ... | 08/20/1991 |
| 5025765 | Heat-insulated four-cycle engine with prechamber A heat-insulated four-cycle engine includes a heat-insulated main combustion chamber, a prechamber having an ejection port communicating with the main combustion chamber and associated with an exhaust valve, a projection mounted on the piston head surface... | 06/25/1991 |
| 4998517 | Heat insulating engine In this heat insulating engine, an auxiliary combustion chamber which is formed by a block consisting of a material of a low heat transfer rate and provided on the inner surface thereof with a thin member composed of a high-density ceramic material, and w... | 03/12/1991 |
| 4993382 | Insert for an indirect injection diesel engine An insert for an indirect injection diesel engine having a cylindrical body having a top wall and a hole formed in the top wall through which fuel and air may be injected into the interior of the insert. A heat resistant alloy layer or welding overlay is ... | 02/19/1991 |
| 4942804 | Piston with ceramic insert that covers piston head portion defining cavity A piston head has a cavity and a central projection projecting into the cavity. A ceramic insert is cast in a piston body so as to cover a piston head portion defining the cavity except the central projection-and-its adjacent piston head portion. The cera... | 07/24/1990 |
| 4899707 | Engine cylinder head with precombustion chambers using ceramics insert The invention relates to a cylinder head for an internal combustion engine in which each combustion chamber has a prechamber. A cast metal body of the cylinder head has recesses each of which provides a prechamber, and a hollow and, for example, bell-shap... | 02/13/1990 |
| 4887568 | Ceramic insert for defining precombustion chamber in cylinder head A cylinder head has an insert assembly defining a precombuation chamber in a cylinder head. The insert assembly includes a domed insert made of ceramics and cast into a cylinder head body. A fuel injection nozzle hole and a glow plug hole are formed so as... | 12/19/1989 |
| 4875444 | Swirl chamber for diesel engines and the like A dome shaped ceramic insert which defines a portion of a swirl chamber is formed at the crown portion with a single aperture through which both the fuel injector and the glow plug can extend. The cylinder head is formed with a portion which fits into the... | 10/24/1989 |
| 4873952 | Engine cylinder head with precombustion chambers using porous ceramics insert The invention relates to a cylinder head for an internal combustion engine in which each combustion chamber has a prechamber. A cast metal body of the cylinder head has recesses each of which provides a prechamber, and a hollow and, for example, bell-shap... | 10/17/1989 |
| 4872433 | Combustion chamber configurations for two cycle engines Improved combustion chamber configurations for two-cycle engines with high pressure fuel injected systems having reciprocal pistons, cylinders with multiple injectors for each cylinder and a cylinder head liner with a chamber having a discoidal configurat... | 10/10/1989 |
| 4856472 | Cylinder head with ceramic precombustion chamber A cylinder head has a ceramic precombustion chamber for an internal combustion engine. The cylinder head includes a part of the cylinder head made of a ceramic body having an injection aperture communicating with a main combustion chamber for jetting burn... | 08/15/1989 |
| 4844037 | Precombustion chamber construction for internal combustion engine A precombustion chamber construction for an internal combustion engine comprises a precombustion chamber constructed by a ceramic body having a glow-plug receiving aperture to be inserted in a precombustion chamber receiving cavity of a metal cylinder hea... | 07/04/1989 |
| 4834042 | Ceramic precombustion chamber for internal combustion engine A ceramic precombustion chamber for an internal combustion engine such as a diesel engine consists of a metal ring and a ceramic body fitted in the metal ring by shrinkage fit. The ceramic body has a through-aperture for an injection nozzle and a combusti... | 05/30/1989 |
| 4742805 | Internal combustion engine A number of embodiments of combustion chamber configurations for internal combustion engines as applied as power units for outboard motors. In each embodiment, the combustion chamber comprises a main open volume in which combustion is initiated and into w... | 05/10/1988 |
| 4738227 | Thermal ignition combustion system The thermal ignition combustion system comprises means for providing walls defining an ignition chamber, the walls being made of a material having a thermal conductivity greater than 20 W/m° C. and a specific heat greater than 480 J/kg° C. with the igni... | 04/19/1988 |
| 4714062 | Sub-combustion chamber of an internal combustion engine This invention relates to a sub-combustion chamber of an internal combustion engine, which includes a ceramic hot plug in a hot plug installation hole in a cylinder head, wherein a small clearance is provided between the hot plug and the installation hole... | 12/22/1987 |
| 4699102 | Structure for mounting sub-combustion chamber in an internal combustion engine A structure for mounting a sub-combustion chamber in an internal combustion engine includes a ceramic sub-combustion chamber and a metal casing separated therefrom by an adiabatic air gap. The air gap is locate opposite to a portion of the external surfac... | 10/13/1987 |
| 4681074 | Structure of divided combustion chamber for internal combustion engine A structure defining a divided combustion chamber of an internal combustion engine, including an upper ceramic member and a lower ceramic member having a passage which abut on each other at an interface to form therein the divided combustion chamber such ... | 07/21/1987 |
| 4676207 | Auxiliary combustion chamber An auxiliary combustion chamber for an internal combustion engine having a semi-spherical insulating ceramic liner and a heat resistant ceramic nozzle portion. The chamber has an outer metal member that is cast around the ceramic liner to impart significa... | 06/30/1987 |
| 4672933 | Precombustion chamber with insulating means A precombustion chamber provided with an arrangement for thermally insulating a cylinder head of an internal combustion engine from a combustion gas in the precombustion chamber comprising: (a) a hollow ceramic body which provides a precombustion chamber ... | 06/16/1987 |
| 4662326 | Cast piston with fiber-reinforcement In a plunger piston of aluminum for internal combustion engines the margin of the combustion chamber trough arranged in the piston crown is fiber-reinforced. The proportion of fibers in the basic material to be reinforced varies over the circumference of ... | 05/05/1987 |
| 4662331 | Precombustion chamber construction of internal combustion engine A precombustion chamber construction of an internal combustion engine includes an upper ceramic body and a lower ceramic body abutting thereagainst to form a precombustion chamber communicating through an injection hole with a main combustion chamber. Acc... | 05/05/1987 |
