Helical blade type compressor with thrust loss compensation

Details Helical blade type compressor with thrust loss compensation Helical blade type compressor with thrust loss compensation

1991-02-21

1991-11-05

Bertsch, Richard A.

Rotary expansible chamber devices

Helical working member

417356, 415101, F04C 1500

Patent

active

050627783

ABSTRACT:
A piston is eccentrically arranged in a cylinder along its axial direction and can be rotated relative to the cylinder. Part of the piston is in contact with the cylinder's inner surface. First and second helical grooves are formed in the piston's outer surface and separated at its central portion, the pitches of the grooves being gradually increased from both end portions to the center portion of the piston. First and second blades are inserted in first and second grooves so as to be moved in and out of the grooves with the outer edges of the blades contacting the inner surface. The blades partition a space between the cylinder and the piston into a plurality of operation chambers with volumes corresponding to the gradual pitch increases.

REFERENCES:
patent: 1600440 (1926-09-01), White
patent: 2401189 (1944-05-01), Quiroz
patent: 3804565 (1974-04-01), Sennet et al.
patent: 4871304 (1989-10-01), Iida et al.

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