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| Number | Title | Issue Date |
| 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 |
| 7191770 | Insulated cylinder liner for a marine engine An engine is made by providing a layer of material between the outer surface of a cylinder liner and the inner surface of the cylinder opening within an engine block. The material can be a polymer or a ceramic. Polyether ether ketone or polyethylene terephthalate ca... | 03/20/2007 |
| 7188470 | Combustion process The combustion process is carried out in presence of a primary catalyst coating which is treated when required by means of cerium/europium compound in presence of water vapor and advantageously in presence of a refractory material, such as a clay, a hydrated clay. | 03/13/2007 |
| 7073492 | Cylinder crankcase, procedure for manufacturing the cylinder bushings for the cylinder crankcase, and procedure for manufacturing the cylinder crankcase with these cylinder bushings A light metal cylinder crankcase for combustion engines has cylinder bushings with a running layer that forms the running surface and a rough, external bonding layer for bonding the cylinder bushings to the cylinder crankcase while pouring the cylinder crankcase. At... | 07/11/2006 |
| 7000584 | Thermally insulated cylinder liner An engine is provided with a plurality of cylinders and cylinder liners that are shaped to define a plurality of spaces between the liners and the engine block. These spaces provided an insulative barrier that at least partially restricts the flow of heat from the l... | 02/21/2006 |
| 6886548 | Internal combustion engine An internal combustion engine having a cylinder and a piston movable in the cylinder, the cylinder and piston defining a combustion chamber enclosed by the cylinder and the piston, a surface of at least one of at least one component of the combustion chamber and an ... | 05/03/2005 |
| 6866031 | Direct injection internal combustion engine An internal combustion engine, especially an Otto engine, with intake valves and with a fuel injector, which is arranged and designed so that it injects the fuel directly into a combustion chamber of working cylinders of the internal combustion engine. At least in t... | 03/15/2005 |
| 6655369 | Catalytic combustion surfaces and method for creating catalytic combustion surfaces A coating and coating process to improve the efficiency of hydrocarbon fueled engines, wherein the coating includes a high percentage of nickel to create a reaction which improves the combustion efficiency of the hydrocarbon fuel. The coating may also inc... | 12/02/2003 |
| 6585832 | Method to prevent specks or hairline cracks in, and premature failure of, airplane cylinder barrels The present invention relates to an improved method for the manufacture of aircraft engine cylinder barrels to prevent their premature failure due to hairline cracks or specks thought to be caused by caustic stress corrosion cracking during black oxide tr... | 07/01/2003 |
| 6286210 | Method for producing a cylinder liner blank to be cast into a light-alloy crankcase of a reciprocating engine Surface activation is intended to ensure that a cylinder liner can be anchored in the casting material of a light-metal crankcase with greater bonding. For surface activation, the surface of the cylinder liner is roughened mechanically. Advantageously, co... | 09/11/2001 |
| 5404639 | Composite insulation for engine components Engine components are thermally insulated with composite layers for improved engine efficiency. A metallic insulation layer is affixed to the metallic substrate of each component, and a layer of heat and corrosion resistant metal overlies and is bonded to... | 04/11/1995 |
| 5371944 | Composite insulation for engine components Engine components are thermally insulated with composite layers for improved engine efficiency. A metallic insulation layer is affixed to the metallic substrate of each component, and a layer of heat and corrosion resistant metal overlies and is bonded to... | 12/13/1994 |
| 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 |
| 5222295 | Method for repairing diesel engine cylinder blocks A method and apparatus for restoring the dimensions of a worn engine cylinder block (11) to "as new" condition by the selective removal of spaced portions (20) and (30) of the cylinder block (11) followed by the replacement of the removed portions by spec... | 06/29/1993 |
| 5183025 | Engine block and cylinder liner assembly and method An engine block for an internal combustion engine including at least one bore, and a cylindrical liner that is pressed into the bore to define the inner cylindrical surface along which the piston reciprocates. The inner surface of the bore and the outer s... | 02/02/1993 |
| 4986230 | Method of joining cylinder bore liners to an engine block Method of bonding cylinder liners to cylinder bore walls, comprising: (a) inserting a cylindrical work hardenable liner into a complementary sized cylindrical bore wall of the block, with a uniform annular radial spacing therebetween of about 0.005 inch; ... | 01/22/1991 |
| 4941439 | Combustion chamber surfaces of an internal combustion engine An arrangement in combustion chamber surfaces of an internal combustion engine, wherein these surfaces exhibit at least partially a thin surface layer (2) which will influence the octane/cetane rating requirement of the engine in a manner to limit the kno... | 07/17/1990 |
| 4862865 | Insulation material and method of applying the same to a component in a combustion engine A thermal insulating material for combustion engine components, which are subjected to combustion gases, e.g. pistons. The insulation consists of a metal layer sintered under low pressure so as to have a porosity of about 25-50% and which is bonded to the... | 09/05/1989 |
| 4791896 | Water cooled scavenged crankcase type Otto internal combustion engine In an internal combustion type engine having a piston disposed within a cylinder, a plurality of ceramic cylinder inner surface sections are provided for covering surfaces of the cylinder chamber and the piston which are directly exposed to the ignited co... | 12/20/1988 |
| 4776309 | Internal combustion engine having low octane number requirements In a spark-ignition internal combustion engine of the type having a combustion chamber which presents at least one surface area on which there is applied at least one layer which presents to the combustion chamber a layer defining surface having very low ... | 10/11/1988 |
| 4774917 | Piston and piston ring for an internal combustion engine An internal combustion engine includes a cylinder block, a piston and a piston ring. The cylinder block includes at least one cylinder bore which includes a cylinder bore surface. The piston is located within the cylinder bore of the cylinder block so as ... | 10/04/1988 |
| 4711208 | Piston for internal combustion engines In a piston for internal combustion engines the piston head is formed with a combustion chamber recess and is provided with a heat-insulating layer of ceramic material. To minimize the heat to be dissipated to the coolant, one part of the heat-insulating ... | 12/08/1987 |
| 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 |
| 4649806 | Composite ceramic/metal piston assembly and method of making An integrally cast composite piston assembly is disclosed which is effective to carry a ceramic plate in an iron based cap. The assembly comprises a cylindrical piston body, preferably of aluminum, having a crown top, an annular crown side wall with an up... | 03/17/1987 |
| 4646692 | Component for internal combustion engines and a process for its production The invention concerns components for internal combustion engines with heat resistant combustion chamber inserts, especially components made of light metal with casted porous ceramic inserts positioned by casting around the basic material, in which in ord... | 03/03/1987 |
| 4612880 | Method for control of octane requirement increase in an internal combustion engine having manifold and/or combustion surfaces which inhibit the formation of engine deposits The control of the octane requirement increase phenomenon in an internal combustion engine is achieved by introducing into an internal combustion engine, having manifold and/or combustion surfaces which inhibit the formation of engine deposits, along with... | 09/23/1986 |
| 4590901 | Heat insulated reciprocating component of an internal combustion engine and method of making same A heat insulated reciprocating component, such as a piston or a valve, for an internal combustion engine comprises a main component body and a ceramic member secured to the body by interference fit with a metal connector which is brazed to the body. In on... | 05/27/1986 |
| 4577611 | Reciprocating internal-combustion engine of low-temperature catalytic-combustion type In a reciprocating internal-combustion engine of a low-temperature catalytic-combustion type, catalyst layers which act at low catalyst temperatures of about 500° C. or downwards to permit combustion of a gaseous air-fuel mixture are formed or secured on... | 03/25/1986 |
| 4550707 | Method for improving the performance of an internal combustion engine, device for implementing the method, and internal combustion engine equipped with said device A method and apparatus for improving the performance of an internal combustion engine in which a piston (10) has a hollow head (11) within the cavity of which there is mounted an open topped frusto-conical bulbous casing (13), the opening of which is cove... | 11/05/1985 |
| 4538562 | Engine part The disclosed engine part uses an integral combination of a ceramic member and a metallic member, which ceramic member has a metallized layer formed on one side surface thereof, and a metallic buffer is bonded to the metallized layer so as to be disposed ... | 09/03/1985 |
| 4530340 | Acid catalyzed combustion The combustion zone of an internal combustion engine is provided with a catalyst which is incorporated in the combustion zone as a thin layer placed on the internal cylinder walls and/or the top surface of the piston and/or on surfaces of the spark plug w... | 07/23/1985 |
| 4530341 | Piston engine having at least one heat-insulated combustion chamber, and parts for said engine Improved heat insulating of a combustion chamber in an internal combustion engine is obtained by providing a heat-resistant body in at least one surface, which is intended to at least partly limit a combustion chamber. A support body supports the heat-res... | 07/23/1985 |
| 4528950 | Cylinder/crank casing in cast iron for internal combustion engines A cylinder casing for use in internal combustion engines having a reciprocating piston is provided having strip-shaped hardened zones along the inner wall of the cylinder which are disposed in such a manner as to impart rotational movement to piston rings... | 07/16/1985 |
| 4524732 | Cylinder head of a piston engine In a cylinder head (1) of a piston engine, a thermal insulation component having openings for the accommodation of valve seats, spark plugs, and injection nozzles consists of a circular aluminum titanate plate (2) which is shrink-fitted into a planar circ... | 06/25/1985 |
| 4524498 | Method and apparatus for modifying the combustion chamber of an engine to accept ceramic liners A method is disclosed of modifying a conventional internal combustion engine to accept ceramic material. A cast iron extension mamber is metallurgically joined to the cast iron engine block, the extension member having a wall defining a bore opening align... | 06/25/1985 |
| 4513703 | Reciprocating piston internal combustion engine A reciprocating piston internal combustion engine, each cylinder of which is provided at the connection point of light metal cylinder head and cylinder sleeve with a sealing element. On that surface which is directed toward the combustion chamber, the sea... | 04/30/1985 |
| 4495907 | Combustion chamber components for internal combustion engines Combustion chamber defining components such as cylinder liners in internal combustion engines are composed of a plurality of metal oxides which combine to impart good wear resistance and thermally insulative characteristics.... | 01/29/1985 |
| 4495684 | Process of joining a ceramic insert which is adapted to be embedded in a light metal casting for use in internal combustion engines Ceramic inserts are embedded in thermally highly loaded zones and/or as a heat insulation in light metal castings for use in internal combustion engines. To provide a firm joint between the insert and the light metal, a metallic material which resists cre... | 01/29/1985 |
| 4494501 | Pistons with combustion bowl inserts A piston for an internal combustion engine comprises a piston body of aluminium or aluminium alloy and an insert of a ferrous material having a combustion bowl formed therein. The insert is surrounded by the piston body and the outer surface of the insert... | 01/22/1985 |
| 4487175 | Cylinder head for internal combustion engine An aluminum cylinder head for an internal combustion engine has a layer of material of dispersion-hardened sintered aluminum disposed in its bottom wall which forms a combustion chamber wall, the layer comprising an insert or inserts at the sealing surfac... | 12/11/1984 |
