Rotary gas expansion motor

Details Rotary gas expansion motor Rotary gas expansion motor

1977-04-18

1978-07-18

Vrabilk, John J.

Pumps

Diverse pumps

Moving partition or cylinder of rotary pump forms or...

418 61B, F04B 2310, F01C 102, F01C 2114

Patent

active

041012488

ABSTRACT:
A compact, rotary gas-operated motor having only two moving components, including valving. Pressurized gas causes an elongate rotor to rotate end-over-end within a generally triangular chamber and causes a crank to slide in a slot in the elongate rotor. A disk rotating with the shaft includes ports to admit pressurized gas and exhaust spent gas. The inlet port is shaped and positioned to provide early cut-off of inlet gas and provide up to 2:1 expansion ratio of the pressurized gas. Still earlier cut-off of inlet gas, at a location between the rotating disk and its housing, provides expansion ratios as high as 9:1. A movable guillotine may be used to provide continuously variable expansion ratios of from about 3:1 to 9:1.

REFERENCES:
patent: 302179 (1884-07-01), Walker
patent: 1277018 (1918-08-01), Wolfington
patent: 2162771 (1939-06-01), Winans
patent: 3285189 (1966-11-01), Doyer
patent: 3301228 (1967-01-01), Winans
patent: 3307525 (1967-03-01), McClure
patent: 3922120 (1975-11-01), McCullough et al.
patent: 3996901 (1976-12-01), Gale et al.

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