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| Number | Title | Issue Date |
| 7383831 | Combustion engine chamber A structure of a chamber in a combustion engine includes a ring-groove portion formed on the piston, a squish-area making portion formed on a top surface of the piston for a squish-area, an outer edge portion formed around the top surface excepting the squish-area m... | 06/10/2008 |
| 5941221 | Reciprocating engine combustion chamber A combustion chamber for reciprocating internal combustion engines greatly reduces large quench areas in the combustion chamber, and substantially matches the combustion chamber periphery with the upper edge circumference of the mating cylinder wall, to r... | 08/24/1999 |
| 5363820 | Combustion chamber for air compressing, self-igniting internal combustion engines A combustion chamber shape for air-compressing, self-igniting internal combustion engines is designed such that fuel injection jets ejected from a multiport injection valve positioned on the cylinder axis do not come into contact with the walls of the com... | 11/15/1994 |
| 5307773 | Squish structure for spark ignition engine A number of embodiments of combustion chamber configurations for internal combustion engines incorporating squish areas for promoting turbulence and rapid flame propagation in the main combustion chamber volume. A pre-combustion chamber volume is formed i... | 05/03/1994 |
| 5257612 | In-line cylinder head for an internal combustion engine An improved cast cylinder head for a high performance internal combustion engine is provided by an especially configured quench surface from which a contoured combustion chamber extends having a metal mass buildup shrouding the exhaust gases through the e... | 11/02/1993 |
| 5230321 | Lean-burn internal combustion gas engine A small bore internal combustion engine our-stroke operating cycle which is adapted to function with natural gas and other gaseous fuels and which is particularly useful with residential heat pump assemblies with maximum life expectancy, high thermal effi... | 07/27/1993 |
| 4788942 | Internal combustion engine using dynamic resonating air chamber An internal combustion engine includes a moving piston within a combustion chamber that is temporarily divided into two zones when the piston is at and near its minumum volume position. Fuel is confined to a first zone where the fuel is ignited to generat... | 12/06/1988 |
| 4557231 | Combustion chamber of a reciprocating internal combustion engine which promotes a rotary combustion turbulence Projecting parts of the piston and the cylinder head are formed in such a manner that two portions of the piston surface are spaced from the inner surface of the cylinder head and a third portion of the piston surface is next to the inner surface of the c... | 12/10/1985 |
| 4291655 | Combustion chamber of an internal combustion engine Disclosed is an internal combustion engine comprising a cylinder head and a piston. A recess is formed on the inner wall of the cylinder head or on the top surface of the piston. The recess defines a combustion chamber when the piston reaches the top dead... | 09/29/1981 |
