Boost-retarding device for electromagnetic plunger pump and the

Details Boost-retarding device for electromagnetic plunger pump and the Boost-retarding device for electromagnetic plunger pump and the

1978-05-04

1980-05-06

Smith, Leonard E.

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

123139AS, 138 31, 417540, 431 38, F23N 100, F04B 4902

Patent

active

042015227

ABSTRACT:
A pump has a boost-retarding device which comprises a cylinder communicating between the suction side and the discharge side of the pump. A plunger slidably and reciprocatingly fits into the cylinder and a lead passage communicates between the suction side and the discharge sides which are divided by the plunger. An adjustable spring biases the plunger toward the discharge side, and a valve mechanism cuts off the outflow of a liquid, from the discharge side to the suction side, which outflow occurs responsive to a movement of the plunger toward the suction side.

REFERENCES:
patent: 1861154 (1932-05-01), Dorman
patent: 2673527 (1954-03-01), Ashton et al.
patent: 3936235 (1976-02-01), Larsen
patent: 4021152 (1977-05-01), Toyoda
patent: 4102630 (1978-07-01), Edman

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