Method of supplying hydraulic operating fluid in diaphragm type

Details Method of supplying hydraulic operating fluid in diaphragm type Method of supplying hydraulic operating fluid in diaphragm type

1982-02-04

1984-03-13

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

91402, F04B 910

Patent

active

044364911

ABSTRACT:
In a diaphragm type pump, a minute amount of the operating fluid is supplied instantaneously from an oil reservoir to an operating chamber at the final stage of the suction stroke in a main cylinder, and an excessive amount of the operating fluid and/or bubbles are discharged into the oil reservoir in the delivery stroke in the main cylinder. The minute amount of the operating fluid is within the range of 0.1 to 2% of the whole volume of displacement of diaphragm.

REFERENCES:
patent: 1797245 (1931-03-01), Schaer
patent: 2578746 (1951-12-01), Scherger et al.
patent: 2753805 (1956-07-01), Boivinet
patent: 3494294 (1970-02-01), Hetz

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