Vane type rotary machine

Details Vane type rotary machine Vane type rotary machine

1982-08-25

1985-03-26

Cline, William R.

Rotary expansible chamber devices

Working chamber surface expressed mathematically

418238, 418267, F04C 1800

Patent

active

045070687

ABSTRACT:
A vane-type rotary machine suitable for use as a compressor, pump or the like, having a cylinder provided with an inner peripheral contour expressed by an epitrochoid-like curve having at least one lobe, a cylindrical rotor contacting the inner peripheral surface of the cylinder and having a plurality of vane grooves, and vanes slidably received by respective vane grooves. The inner peripheral contour of the cylinder constituted by the epitrochoid-like curve is divided at the circumferential mid point of each of the portions where the distance between the rotor and the cylinder is minimized, and the curve is contracted in the circumferential direction by a predetermined angle to form a discontinuity corresponding to the predetermined angle. Both end points of the discontinuity is connected by an arc of the same radius as the rotor.

REFERENCES:
patent: 3121421 (1964-02-01), Peterson

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