Vane-stator bottom assembly for rotary hydraulic devices

Details Vane-stator bottom assembly for rotary hydraulic devices Vane-stator bottom assembly for rotary hydraulic devices

1981-09-18

1984-01-10

Smith, Leonard E.

Rotary expansible chamber devices

With mechanical sealing

Seal element between vane and cylinder

418229, F01C 1900, F04C 2700

Patent

active

044250886

ABSTRACT:
This invention relates to rotary hydraulic devices of the volumetric or displacement pump type, having a stator and a rotor and vanes axially sliding in the rotor, the stator comprising at least one bottom surface presenting a variable number of recesses therein with ramps and rectilinear zones suited to the operation, said vanes following said bottom surface. In accordance with the invention, the vanes are equipped with an integral or inset base, with end lobes of cylindric shape having a radius of curvature corresponding to that of the milling cutter used for machining the stator. Access to the recesses occurs by means of two ramps corresponding to the lobes of cylindric shape of the vane bases.

REFERENCES:
patent: 2436285 (1948-02-01), Booth
patent: 3799710 (1974-03-01), Jacobs

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