Noise reduction

Details Noise reduction Noise reduction

1976-01-26

1977-07-26

Schwadron, Martin P.

Motors: expansible chamber type

Three or more cylinders arranged in parallel radial or...

Cylinders parallel to rotation axis

92 57, 92 71, 92128, 181 33K, F01B 302, F01B 1304

Patent

active

040375218

ABSTRACT:
An axial piston machine comprising a casing which encloses and mounts the machine working parts therein and a cover of pliant material mounted externally of the casing to substantially entrap a quantity of air or other gas against at least a part of the outer surface of the casing to reduce noise radiation from the casing.

REFERENCES:
patent: 2662375 (1953-12-01), Postel
patent: 2892413 (1959-06-01), Erikson
patent: 3131539 (1964-05-01), Creighton
patent: 3495543 (1970-02-01), Millard
patent: 3540425 (1970-11-01), Scheiterlein
patent: 3667867 (1972-06-01), Boydell
patent: 3687224 (1972-08-01), Lundin
patent: 3774505 (1973-11-01), McLeod
patent: 3841203 (1974-10-01), Bruce

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