Class 123/73AC - Varies compression space

Subclass of Class 123 - Internal-combustion engines
No. of patents: 4
Last issue date: 09/11/1990

Number	Title	Issue Date
4955333	Variable volume crankcase scavenge control A crankcase scavenged two cycle engine is provided with a supplemental variable volume chamber or plenum connected with the crankcase chamber for each cylinder to controllably vary the effective volume of the crankcase chambers and thereby control scaveng...	09/11/1990
4318373	Two-stroke motors producing better combustion and permitting a reduction of pollution Improvements in the operation cycle of a two-stroke engine. At least the scavenging residue which is in the exhaust manifold are sucked back into the crankcase of the engine, at the vicinity of the exhaust port of the cylinder independently of the feed sy...	03/09/1982
4261306	Method and apparatus for improving performance of two-cycle gasoline engine The rotating combustible mixture in the crankcase of a two-cycle gasoline engine is scooped into the transfer duct leading to the cylinder by a plurality of vanes extending over the crankcase flywheel and in close juxtaposition thereto....	04/14/1981
4242993	2-Cycle engine of an active thermoatmosphere combustion A 2-cycle engine having a transfer passage communicating the crank room with the combustion chamber. An accumulation tank having a volume which is larger than the stroke volume of the piston is arranged in the transfer passage. A reed valve is arranged in...	01/06/1981

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