Rotary valve for internal combustion engine

Details Rotary valve for internal combustion engine Rotary valve for internal combustion engine

1990-07-30

1991-10-01

Cross, E. Rollins

Internal-combustion engines

Four-cycle

Rotating valve

123190E, 123190DL, 123190D, 123190BB, F01L 700

Patent

active

050523490

ABSTRACT:
The invention herein is a rotary valve apparatus for a cylinder of an internal combustion engine, containing a valve housing having an internal axial bore and an opening over the combustion chamber, a circumferential bearing positioned within the bore, an axially aligned cylindrical valve body journaled in the bearings, at least one axially aligned hollow chamber in the valve body, a drive for rotating the body in correspondence to the operating strokes of the piston in the cylinder, port seals to prevent gas flow around the outer surface of the valve body, and ring seals extending around the inside of the valve housing and sealing with the outer surface of the valve body. A lip seal may also be used on the intake side of the valve. The valve is useful with both two-cycle and four-cycle engines.

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Cameron, Cycle, 67-71, 87 (May 1990).
Hagen, American Roadracing, 28-31 (Feb., 1990).
Heywood, Internal Combustion Engine Fundamentals, 220-229, 342-357 844-853 8/1988.
Miller et al., "Development of a Ceramic Exhaust Part Liner," SAE Paper No. 880677 (1988).
Smith, Valve Mechanism for High Speed Engines: Their Design and Development, Ch. 7 (2d end., 1971).
Wilkinson, Autoweek, 17-18, 21-22 (Mar. 12, 1990).
Wilson, Autoweek, 23-25 (Mar. 12, 1990).

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