Centering and cooling equipment for a hydraulic vibration genera

Details Centering and cooling equipment for a hydraulic vibration genera Centering and cooling equipment for a hydraulic vibration genera

1979-07-12

1981-12-15

Hershkovitz, Abraham

Power plants

Pressure fluid source and motor

Pulsator

60572, 60594, 91401, F15B 700

Patent

active

043052525

ABSTRACT:
Centering and cooling equipment for a hydraulic vibration generator, with a pulsation generator pressurizing a cylinder containing a movable piston, composed of a feed system and a flushing system. The feed system includes spring-loaded non-return valves connecting a fluid reservoir to feed pipes connecting the pulsation generator to the cylinder chambers, and operates to supply cool pressure fluid from the reservoir when pressure in the cylinder chambers falls below a predetermined level. The flushing system includes a control bush/control plunger unit, bush and plunger of which are respectively connected to the piston and cylinder or vice versa, the plunger cooperating with channels in the bush to connect either feed pipe to a return passage according to the off-center position of the plunger in the bush. This system operates to withdraw a quantity of pressure fluid, dependent on pressure and stroke, from the cylinder chambers with each piston stroke.

REFERENCES:
patent: 1879598 (1932-09-01), Bragg
patent: 2410001 (1946-10-01), Ashbaugh
patent: 2784704 (1957-03-01), Meats
patent: 2882685 (1959-04-01), Carlsen
patent: 3058450 (1962-10-01), Lissau
patent: 3242675 (1966-03-01), Norton
patent: 4187762 (1980-02-01), Buzby

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