High speed vacuum pump with reduced exhaust noise

Details High speed vacuum pump with reduced exhaust noise High speed vacuum pump with reduced exhaust noise

1994-03-04

1996-08-27

Korytnyk, Peter

Pumps

With muffler acting on pump fluid

921701, F04B 5316

Patent

active

055494544

ABSTRACT:
A vacuum pump comprises a casing body (11,12) having a cylinder liner (16) therein which defines a primary exhaust passage between the outer wall of the liner and the inner wall of the body. The exhaust passage includes restrictors (20,21), which permit the spaces (37,38) in the interior of the body to be used as silencer chambers.

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patent: 3877842 (1975-04-01), Greene et al.
patent: 4221196 (1980-09-01), Castarede
patent: 4393752 (1983-07-01), Meier

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