Means for controlling air discharge, in an air compressor

Details Means for controlling air discharge, in an air compressor Means for controlling air discharge, in an air compressor

1987-07-20

1988-05-17

Freeh, William L.

Pumps

Expansible chamber type

Having separate noncyclic valve

251228, F04B 4900, F04B 3144

Patent

active

047447346

ABSTRACT:
An air compressor having a pair of coacting rotors, useful as a supercharger for an engine, has a throttle plate in the compressed-air discharge port of its airend. The plate is carried by a shaft which is journalled in the airend housing. An air bypass channel is formed in the housing, The channel being in communication with the air-end air inlet. A pair of apertures formed in the housing open onto both the channel and the rotors, and flapper valves, pivotably mounted in the channel, monitor the apertures. Spring steel limbs, fixed to the throttle plate shaft engage and disengage the valves, to close and open the apertures, respectively, as the shaft is rotated to open and close the compressed-air discharge port, respectively again, by means of the throttle plate.

REFERENCES:
patent: 830046 (1906-09-01), Bole
patent: 2164451 (1939-07-01), Fast
patent: 2294743 (1942-09-01), Funderburk
patent: 2311936 (1943-02-01), Elfes et al.
patent: 2524474 (1950-10-01), Randel
patent: 2988070 (1961-06-01), Brueder
patent: 3747617 (1973-07-01), Katchka
patent: 4207743 (1980-01-01), Ecomard et al.
patent: 4364366 (1982-12-01), Terwilliger
patent: 4364367 (1982-12-01), Terwilliger
patent: 4373337 (1983-02-01), Widman
patent: 4392472 (1983-07-01), Merritt et al.
patent: 4393852 (1983-07-01), Merritt et al.
patent: 4498849 (1985-02-01), Schibbye

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