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| Number | Title | Issue Date |
| 7249556 | Compressor with fortified piston channel A compressor is disclosed generally comprising a cylinder head mounted to a cylinder block having a cooling chamber and a piston channel via a bolt. A piston is disposed in the piston channel and has a contact portion that contacts the channel wall, which is integra... | 07/31/2007 |
| 7188589 | Direct injection internal combustion engine In a direct injection internal combustion engine, a fuel injection valve and a spark plug of adjacent cylinders are inclined at different angles from each other in directions perpendicular to a cylinder arrangement direction in which the cylinders are arranged. Besi... | 03/13/2007 |
| 6019081 | Cooled pre-combustion chamber assembly A sparkplug cooling passageway is disposed in a second body portion of the cooled pre-combustion chamber assembly. The sparkplug cooling passageway has a first side surface spaced about a threaded bore portion disposed in the second body portion. The firs... | 02/01/2000 |
| 5699760 | Cooling system for internal combustion engine A cooling system for a reciprocating multicylinder internal combustion engine includes discharge passages for conducting coolant from the cylinder block to specific regions of the cylinder head so as to increase the localized heat transfer coefficient bet... | 12/23/1997 |
| 5094217 | Air fuel injection system An air fuel injector system for a two cycle crankcase compression internal combustion engine, including an insulating housing encircling and enclosing at least a portion of the air fuel injectors for sound deadening. In addition, air is circulated through... | 03/10/1992 |
| 5081960 | Cooling arrangement for multi-valve engine A cylinder head cooling jacket arrangement for an internal combustion engine having a pair of adjacent exhaust ports that extend from the combustion chamber to exhaust port openings formed in the side of the cylinder head. A spark plug well is formed betw... | 01/21/1992 |
| 4714058 | Spark-ignited internal combustion engine In a spark-ignited engine in which a spark plug is supported so that its igniting tip is centrally located in the combustion chamber, a bore for forming a coolant passage is provided in the wall of the cylinder head defining the combustion chamber to exte... | 12/22/1987 |
| 4690104 | Cylinder head with inwardly projecting cup plug in casting sand extraction hole for speeding up coolant flow A cylinder head for an automotive vehicle has an inner wall serving to define the roofs of combustion chambers, and an outer wall spaced outward therefrom. A coolant flow plenum is defined between the inner wall and the outer wall, and a coolant flow path... | 09/01/1987 |
| 4688524 | Apparatus for cooling cylinder head of an engine An apparatus for cooling the cylinder head of an engine including a plurality of recesses formed in the cylinder head at the position located above the combustion chambers to accumulate oil therein and covers adapted to cover the recesses. Oil accumulated... | 08/25/1987 |
| 4688523 | Method and apparatus for cooling cylinder head of an engine Method and apparatus for cooling the cylinder head of an engine of the type in which oil is delivered to the area located above the combustion chambers in the cylinder head and the latter is cooled by thus delivered oil. Oil introducing means through whic... | 08/25/1987 |
| 4635591 | Internal-combustion engines In a cylinder head for internal combustion engines, the engine having a longitudinal axis and intake and exhaust ports, the head including at least one concave portion defining a curved wall of a combustion chamber, the combustion chamber being provided w... | 01/13/1987 |
| 4625682 | Cylinder head A cylinder head for an internal combustion engine has at least one receptacle socket, penetrating a coolant chamber, for a spark plug and/or an injection valve. At one end, the socket rests tightly, with a frustoconical seating face, against a correspondi... | 12/02/1986 |
| 4469059 | Spark plug A spark plug for igniting air-fuel mixtures, comprising: an elongated annular body with an axial bore; dividing the bore into a valve chamber and a compression chamber; and, a valve disk, slidingly disposed in the valve chamber, the valve disk being subje... | 09/04/1984 |
| 4365593 | Water-cooled internal combustion engine In a water-cooled multi-cylinder internal combustion engine the cylinder head is cast without the use of a core for the water jacket and is provided with cast channels of a predominantly longitudinal direction in the area of the upper ends of the cylinder... | 12/28/1982 |
| 4332223 | Plasma fuel ignitors An improved ignitor and ignition method for igniting a wide variety of fuels that may be used to power various types of engines, or for use with other applications requiring the efficient combustion of fuel. The fuel to be burned is mixed with air to form... | 06/01/1982 |
| 4303045 | Apparatus to convert Otto cycle engine to diesel engine A system for converting a spark ignition Otto cycle engine into a compression ignition or Diesel cycle engine comprises: (a) compression means connected to the engine piston end portion closest the combustion zone to effect an increase in heating and pressuriz... | 12/01/1981 |
| 4291651 | Internal combustion engine A pump supplies pressurized lubricant to an internal combustion engine from an external reservoir through a closed loop system. Delivery channels extending through the crankshaft, connecting rod and other components, supply the pressurized lubricant to th... | 09/29/1981 |
| 4121550 | Liquid-cooled cylinder head A liquid-cooled cylinder head for an internal combustion engine which is provided with inlet and exhaust channels disposed opposite one another in the cylinder head longitudinal direction, with a central chamber and with several inlet bores for the coolin... | 10/24/1978 |
| 4096832 | Ignition apparatus and method for an internal combustion engine An improved ignition device wherein a spark plug is provided with a torch chamber surrounding the spark gap. A first mixture of fuel-rich fuel and air is supplied to the torch chamber where it is ignited by a spark and propelled as a jet of burning fuel i... | 06/27/1978 |
