Roots-type blower with improved inlet

Details Roots-type blower with improved inlet Roots-type blower with improved inlet

1990-05-25

1992-01-28

Vrablik, John J.

Pumps

Expansible chamber type

Having separate noncyclic valve

4182011, 4182012, 418206, F04B 4902, F04C 1816, F04C 2908

Patent

active

050839071

ABSTRACT:
A rotary positive displacement blower (10) of the Roots-type includes an improved inlet port opening (28 or 100, or 150) and an inlet duct (30) and a bypass duct (31) formed in a unitary housing member (14).

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patent: 4502283 (1985-03-01), Wandel
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patent: 4768934 (1988-09-01), Soeters
patent: 4828467 (1989-05-01), Brown
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SAE Technical Paper Series No. 870355 entitled, "Development of the Eaton Supercharger", by Loren H. Uthoff and John W. Yakimow, Feb. 1987.

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