Pneumatic motor with muffled exhaust

Details Pneumatic motor with muffled exhaust Pneumatic motor with muffled exhaust

1976-07-23

1978-01-17

Vrablik, John J.

Rotary expansible chamber devices

Combined

418270, 181230, F01C 1302, F01C 2100

Patent

active

040689875

ABSTRACT:
In a pneumatic motor that includes a vaned rotor, a rotor chamber having a gas inlet and gas outlet means, a housing and an axially extending rotor shaft to rotate in said chamber, structure to control and muffle the escape of exhaust gas comprising
A. a first exhaust chamber extending about the rotor chamber and into which pressurized exhaust gas escapes from the rotor chamber,
B. a second exhaust chamber spaced axially from the first exhaust chamber and extending about the shaft, and primary porting communicating between the first and second exhaust chambers, and
C. a third exhaust chamber extending about the shaft and located radially inwardly of the second exhaust chamber, there being radially inwardly extending porting spaced about the shaft and communicating between the second and third exhaust chambers to direct escaping exhaust directionally inwardly and in conflicting turbulent streams to dissipate energy contained in said streams.

REFERENCES:
patent: 1979537 (1934-11-01), Elliott
patent: 3129642 (1964-04-01), Sorensen et al.
patent: 3459275 (1969-08-01), Prillwitz et al.

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