Fluid pump with eccentrically driven C-shaped pumping member

Details Fluid pump with eccentrically driven C-shaped pumping member Fluid pump with eccentrically driven C-shaped pumping member

1985-07-08

1986-08-19

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

F04C 204, F04C 1804

Patent

active

046067116

ABSTRACT:
A fluid pump comprises a casing at the rear of which is secured a fixed plate having a forward open longitudinal groove with a C-shaped transversal cross-section. A movable plate is placed at the front of the fixed plate and is held in a close sliding contact with the fixed plate to seal the groove to form a pumping chamber. The movable plate carries an integral pumping member which is in the form of a split-tube extending into the pumping chamber. The movable plate is driven by an eccentric drive so that the pumping member within the pumping chamber performs as oscillatory movement along a circular trajectory with its inner wall in a sealing contact with the inner wall of the pumping chamber, and with its outer wall in a sealing contact with the outer wall of the pumping chamber, thereby performing the intake and compression strokes. The pumping member and the pumping chamber are so shaped that the tangential lines drawn at their edges become parallel with each other, thereby assuring a close sealing contact at the TDC and BDC positions of the pumping member.

REFERENCES:
patent: 1229676 (1917-06-01), Tice
patent: 1378065 (1921-05-01), Varley

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