Internal combustion engine with one or more compression caps between piston and cylinder head and deflection means in the combustion chamber through which rotary flow is induced in the charge
This patent describes an internal combustion engine cylinder construction for providing a vertically oriented rotational swirl of a gas fuel charge in a combustion chamber immediately before ignition. It consists of: (A) an engine cylinder having a repicrocable piston disposed and closed at its upper end by a cylinder head having side-by-side intake and exhaust valves; (B) a recessed, oval-shaped combustion cavity located between the head of the engine and the top of the piston, and having a flat upper surface including the intake and exhaust valve surfaces and the area between them, and a flat opposing bottom surface on the top of the piston defined by a left and right sidewall and having substantially semicircular ends aligned with the outer circular periphery of the valves and connected by opposite sidewalls; (C) two opposed compression gap zones located between the head and the upper surface of the piston, one compression zone located on each side of the combustion cavity and adjacent one of the left and right sidewalls and connecting with the interior of the combustion cavity when the piston at the upper end of its travel approaches the cylinder head so as to force the charge into the combustion chamber in opposite opposed directions immediately prior to the piston reaching the top of the cylinder; (D) the piston having a first upwardly extending ridge which forms one of the left and right sidewalls of the combustion chamber, and the head having a second corresponding downwardly extending ridge forming the other of the left and right sidewalls.
- Assignee:
- NOV; EDB-86-087417
- Patent Number(s):
- US 4565181
- OSTI ID:
- 6045496
- Resource Relation:
- Patent File Date: Filed date 10 Jan 1980
- Country of Publication:
- United States
- Language:
- English
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