Rotary vaned valves

Details Rotary vaned valves Rotary vaned valves

1990-05-01

1991-04-02

Cross, E. Rollins

Internal-combustion engines

Valve

Rotary

123190BB, 60598, F01L 700

Patent

active

050039423

ABSTRACT:
A rotary valve provides incorporates one or more sets of blades or vanes within the tubular body member of the rotary valve, which vanes are independent of the rotary valve to enable them to be spun about the longitudinal axis of the tubular rotary valve at a significantly higher rate than the rotary valve itself. Thus, the normal rotation of the rotary valve (typically rotating at one-half crankshaft speed for a four-cycle engine) not only periodically aligns the ports of the valve with the ports of the cylinder head and enables intake/exhaust functions in the usual manner, but the internal spinning vanes (rotating at a much higher speed) provide additional thrust and, therefore, improved pressure, efficiency and flow characteristics to the gas flow.

REFERENCES:
patent: 1890326 (1932-12-01), Hansen
patent: 2155143 (1939-04-01), McDermett
patent: 4134381 (1979-01-01), Little
patent: 4370955 (1983-02-01), Ruggeri
patent: 4556023 (1985-12-01), Giocastro et al.

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