Hydraulic cylinder with pressure transmission

Details Hydraulic cylinder with pressure transmission Hydraulic cylinder with pressure transmission

1992-02-18

1993-02-23

Denion, Thomas E.

Motors: expansible chamber type

Fluid supply through diverse paths to single expansible chamber

Semi-compound type

91 8, 91 6, 60560, 60563, 60593, 92 65, 92 75, F01B 2504

Patent

active

051880148

ABSTRACT:
The hydraulic cylinder comprises a cylinder jacket (1), a piston-rod guide flange (2), and a cylinder bottom (3). Disposed within the cylinder are a primary piston (4) provided with a piston rod (6) and a secondary piston (11) connected to two plungers (7, 8). The plungers enter two bores (5, 6) in the primary piston. Two spring-biased (19, 20), openable check valves (17, 18) are disposed in the cylinder bottom. In each valve there is a bore (41, 42) connecting the front and rear sides of the valve. The rear portions (24, 25) of the valve chambers (26, 27) each contain a spherical unstopping piston (21, 22). Two supply ducts (23, 30) for the hydraulic fluid are connected to the valve chambers, these chambers in turn having supply ducts at various locations (36, 40, 45) of the interior of the cylinder. A very compact construction is possible for the hydraulic cylinder with pressure transmission.

REFERENCES:
patent: 1181110 (1916-05-01), Carter
patent: 2575937 (1951-11-01), Bent
patent: 3021802 (1962-02-01), Glas
patent: 3410089 (1968-11-01), Snitgen
patent: 4620419 (1986-11-01), Simson

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