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| Number | Title | Issue Date |
| 7367293 | Four-stroke engine A four-stroke engine includes a cylinder block, a cylinder head mounted on the cylinder block, multiple cooling fins formed on the cylinder block and the cylinder head, a combustion chamber and an intake port and exhaust port formed in the cylinder head and in commu... | 05/06/2008 |
| 7255069 | Cylinder sleeve support for an internal combustion engine The disclosed multi-cylinder, poppet-valved engine, has replacement cylinder sleeves larger than the original sleeves, and laterally supported near their upper ends by an aluminum alloy plate having a continuous flange or boss projecting into the cylinder block. The... | 08/14/2007 |
| 7225767 | Conversion of an air-cooled engine to liquid cooling In some aspects of the invention the invention will relate to conversion of an existing VW air cooled engine to liquid cooling, and in still further aspects it will relate to the design of a water jacket to maximize heat rejection of a combustion chamber and piston ... | 06/05/2007 |
| 7216611 | Cooling structure of cylinder block A cooling structure of a cylinder block includes a water jacket portion which is provided so as to surround an entire outer periphery of the bore wall; a water jacket spacer which is inserted in the water jacket portion; and a gasket which is provided in an upper po... | 05/15/2007 |
| 7137363 | Cooling structure of cylinder block A cooling structure of a cylinder block includes a water jacket portion which is provided so as to surround an entire outer periphery of the bore wall; a water jacket spacer which is inserted in the water jacket portion; and a gasket which is provided in an upper po... | 11/21/2006 |
| 7082908 | Cooling structure of cylinder block A cooling structure of a cylinder block includes a water jacket portion which is provided so as to surround an entire outer periphery of a bore wall; and a water jacket spacer which is inserted in the water jacket portion. A foreign matter collecting mechanism which... | 08/01/2006 |
| 7069883 | Monitoring of closed circuit liquid cooling systems particularly in internal combustion engines Early stage detection of engine liquid cooling problems is provided with temperature, pressure and other sensors and associated logic circuits configured for detecting alarm conditions including below normal static coolant pressure coupled with an elevated coolant t... | 07/04/2006 |
| 7010840 | Cylinder liner remover A novel apparatus and method to engage a liner in an cylinder of an engine is provided. A wedge and rod are utilized as part of a liner remover assembly to move at least one collet axially to engage the liner. In a preferred embodiment, a novel eyehook is provided a... | 03/14/2006 |
| 7003877 | Cylinder liner remover A novel apparatus and method to engage a liner in an cylinder of an engine is provided. A wedge and rod are utilized as part of a liner remover assembly to move at least one collet axially to engage the liner. In a preferred embodiment, a novel eyehook is provided a... | 02/28/2006 |
| 6886505 | Cylinder block and die-casting method for producing same The invention relates to a cylinder block of the closed-deck type, which can be produced by die-casting. The cylinder block includes a water jacket surrounding the cylinders adapted to be open to the side. The lateral opening can be closed by a cover, which is addit... | 05/03/2005 |
| 6408803 | Liquid cooling system and retrofit for horizontally opposed air cooled piston aircraft engines A cooling system for conversion of air cooled aircraft engines to liquid cooling, including replacement cylinders, light weight, flex tolerant coolant manifolds and cooling system instrumentation for monitoring coolant temperature and pressure. The replac... | 06/25/2002 |
| 6357400 | Piston sleeve The piston sleeve has a radial positioning surface adjacent to the top surface and an axial positioning surface separated from radially positioning surface by a coolant contact surface. A piston bore extending the length of the piston sleeve is machined t... | 03/19/2002 |
| 6035813 | Engines of reciprocating piston type An engine of reciprocating piston type includes a cylinder block which defines one or more cylinders and connected to which is a cylinder head closing the cylinders. Each cylinder reciprocably receives a respective piston and is defined by a respective cy... | 03/14/2000 |
| 5857435 | Two cycle engine A two stroke cycle internal combustion engine (10) is provided which has a one-piece cylinder housing (14) removably secured to a valve drive housing (12) at a top section thereof and a crank housing (16) at a bottom section. The overall combination of th... | 01/12/1999 |
| 5842447 | Cylinder block of an internal-combustion engine A cylinder block of an internal-combustion engine of an open-deck construction, in which the cooling water jacket and the oil jacket between the cylinder tube and the cylinder block housing are separated from one another by a connection web which connects... | 12/01/1998 |
| 5755190 | Reciprocating machine with cooling jacket A reciprocating machine, such as an internal combustion engine or a compressor, in which a piston slides reciprocally in a cylinder unit having an integrally formed cylinder head and cylinder body, is at least partially enclosed in a jacket. The inner sur... | 05/26/1998 |
| 5361730 | One piece cylinder head and liner including a draftless water jacket The unitary cylinder head and liner combination, is vertically cast as a one piece unit. The liner incorporates a water jacket therein. The water jacket is draftless, allowing water to circulate therethrough more efficiently, increasing cooling capabiliti... | 11/08/1994 |
| 5239949 | Cooling jacket and thermal insulation for an internal-combustion engine An internal combustion comprises a cooling circuit of the cylinder heat and cylinder in the region of the upper dead center of the piston and cooling solely by oil injection into the cylinder in the lower region of the cylinder. The cooling circuit consis... | 08/31/1993 |
| 4587933 | Cylinder block for internal combustion engine A cylinder block for an internal combustion engine is provided which includes a plurality of relatively spaced free-standing cylinder tubes disposed within a cooling jacket formed in the block. The cylinder tubes are connectedly supported by, and extend u... | 05/13/1986 |
| 4343267 | Cylinder block for an internal combustion engine An improved cylinder block for a high compression internal combustion engine is provided which includes a cooling jacket having interconnected peripheral side and end walls and a base section, and at least one cylinder tube disposed within and encompassed... | 08/10/1982 |
| 4108118 | Water jacketed cylinder A water jacketed replacement cylinder assembly for air-cooled motorcycle engines including means to control and direct the flow of liquid coolant for most effective heat transfer at the normally hottest zone at the thrust side of the cylinder.... | 08/22/1978 |
| 4050421 | Cylinder liner with internal cooling ducts for internal combustion reciprocating engines A cylinder liner for a large size internal combustion engine has a neck which extends between the cylinder block and the head to define a combustion chamber in each cylinder. The liner has internal cooling ducts which are formed by blind holes in the neck... | 09/27/1977 |
