Class 123/47AB - Inlet and exhaust valve in piston

Subclass of Class 123 - Internal-combustion engines
No. of patents: 4
Last issue date: 11/13/2001

Number	Title	Issue Date
6314923	Opposed supercharged two-stroke engine module with crossflow transfer A two-stroke internal combustion engine 7 is provided. The engine 7 has a first piston 12 with a head 16 and a second piston 28 with a head 30 which faces the first piston 12. First and second pistons 12, 28 have valved exhaust lines 20 intersecting with ...	11/13/2001
5490482	Two cycle engine with piston mounted poppet valve operating mechanism A two cycle piston engine is described in which one or more intake poppet valves are carried in the top of the piston which driven onto a respective mating valve seat in the cylinder head by piston movement towards top dead center, a spring allowing retra...	02/13/1996
4651690	Collapsible wall engine This invention relates to an internal combustion engine comprising: a combustion chamber having at least one rigidly fixed inner wall surface and at least two movable inner wall surfaces reciprocally mounted and adapted to reciprocate from a first positio...	03/24/1987
4455974	Gas bearing piston assembly A gas bearing supported piston assembly (2) for an internal combustion engine including a piston body (14, 14') and a segmented piston ring (3) arranged to expand to compensate for wear. A piston supporting gas layer (27) is formed between the cylinder wa...	06/26/1984

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