Reciprocating apparatus particularly for pump unit

Details Reciprocating apparatus particularly for pump unit Reciprocating apparatus particularly for pump unit

1975-06-06

1976-06-01

Freeh, William L.

Power plants

Pressure fluid source and motor

Cyclically operable reciprocating or oscillating motor or...

60391, 60446, 74 25, 74 96, 251251, 417390, 417539, F16H 3946

Patent

active

039599671

ABSTRACT:
A system is provided for maintaining a permanent reciprocatory movement of a mechanical arrangement, particularly a pump unit. A main driving wheel is coupled to the mechanical arrangement and fastened on the shaft of a hydraulic motor which is supplied by a variable delivery pump provided with control means. The control means is coupled to the wheel by a drive mechanism which comprises a rocking lever coupled to the control means and a cam carrier wheel rotationally fixed to the wheel. As the mechanical arrangement moves in one direction, the rotation of the driving wheel causes the cam wheel to change the position of the rocking lever thus permitting the control means to direct the flow of fluid from the variable delivery pump to the hydraulic motor to reverse the direction of travel of the mechanical arrangement.

REFERENCES:
patent: 2839865 (1974-10-01), Chardonneau et al.
patent: 2910831 (1959-11-01), Gatwood
patent: 3055225 (1962-09-01), Miller
patent: 3482399 (1969-12-01), Lawson
patent: 3772888 (1973-11-01), Orlando
patent: 3868820 (1975-03-01), Lawson

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