Vane pump with bypass for leakage of fluid when bottom of vane i

Details Vane pump with bypass for leakage of fluid when bottom of vane i Vane pump with bypass for leakage of fluid when bottom of vane i

1978-12-01

1980-12-30

Vrablik, John J.

Rotary expansible chamber devices

Positively actuated vane

Fluid biased

418 82, F04C 2356

Patent

active

042420687

ABSTRACT:
The instant invention provides an improved vane for a vane pump which incorporates an extended undervane suction port. The vane has a restricted passage which connects the inner and outer ends of the vane and an unrestricted passage which connects the outer end of the vane and the suction side of the vane when the leading edge of the vane is exposed to the pressure port and the inner end of the vane is connected to the suction port.

REFERENCES:
patent: 3359914 (1967-12-01), Adams et al.
patent: 3645647 (1972-02-01), Ciampa et al.
patent: 3781145 (1973-12-01), Wilcox
patent: 3790314 (1974-02-01), Swain et al.

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