Variable displacement blower

Details Variable displacement blower Variable displacement blower

1984-04-30

1986-01-07

Vrablik, John J.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

417462, F04B 106, F04B 2900

Patent

active

045631310

ABSTRACT:
A blower having a stationary casing for rotatably supporting a rotor assembly having a series of open ended chambers arranged to close against the surrounding walls of the casing. Pistons are slidably mounted within each chamber with the center of rotation of the pistons being offset in regard to the center of rotation of the rotor assembly whereby the pistons reciprocate in the chambers as the rotor assembly turns. As inlet port communicates with the rotor assembly to deliver a working substance into the chamber as the pistons approach a top dead center position in the chamber while an outlet port also communicates with the rotor to exhaust the working substance as the pistons approach a bottom dead center position. The displacement of the blower is varied by adjusting the amount of eccentricity between the center of rotation of the pistons and the center of rotation of the rotor assembly.

REFERENCES:
patent: 1550835 (1925-08-01), Morgan
patent: 2018692 (1935-10-01), Waite
patent: 2221501 (1940-11-01), Waite
patent: 4456434 (1984-06-01), El Ibiary

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