Power plants – Pressure fluid source and motor – Pulsator
Patent
1976-09-03
1978-02-21
Cohen, Irwin C.
Power plants
Pressure fluid source and motor
Pulsator
60567, 60571, 60594, 91378, F15B 300
Patent
active
040745317
ABSTRACT:
A load-controlling piston of the double-action type, dividing an associated cylinder into two compartments, is positionable by a hydraulic servomechanism comprising a block wherein a high-pressure supply port and a low-pressure discharge port communicate with a pair of pressure cylinders occupied by respective plungers which are hydrostatically linked with the piston through conduits connecting the compartments of the piston cylinder with respective pressure chambers of variable volume formed by the two pressure cylinders. Each plunger has an axial bore accommodating a valve stem with a tapering head which is surrounded with small clearance by a valve chamber communicating at one end with the discharge port and at the opposite end via an internal passage with a gap adjacent a plunger face remote from the corresponding pressure chamber. In a normal plunger position the valve chamber is disconnected from the supply port by the retracted valve head; upon displacement of the valve stem by an actuating lever common to both plungers, against a restoring spring force, the valve head enters the valve chamber and defines therewith two constrictions tending to hold that head in an equilibrium position whereby the plunger follows the movement of the valve stem and in turn displaces the piston into a position uniquely associated with that of the plunger.
REFERENCES:
patent: 2142628 (1939-01-01), Ballert
patent: 2189013 (1940-02-01), Loweke
patent: 2360578 (1944-10-01), Porter
patent: 2410269 (1946-10-01), Chouings
patent: 2775957 (1957-01-01), Anderson
patent: 2902829 (1959-09-01), Verbrugge
patent: 2946195 (1960-07-01), Hare
patent: 3099289 (1963-07-01), Neilson et al.
patent: 3099940 (1963-08-01), Leduc
patent: 3345817 (1967-10-01), Randol
patent: 3894390 (1975-07-01), Belart et al.
patent: 3899890 (1975-08-01), Adams
patent: 3961561 (1976-06-01), Knutson
Cohen Irwin C.
Lamborghini Oleodinamica S.p.A.
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