Motors: expansible chamber type – Plural relatively movable or rigidly interconnected working... – Condition responsive means for modifying working member...
Patent
1977-07-12
1980-03-11
Maslousky, Paul E.
Motors: expansible chamber type
Plural relatively movable or rigidly interconnected working...
Condition responsive means for modifying working member...
91171, 91189R, 91520, 92151, 60546, F01B 2504, F15B 1122, F01B 700
Patent
active
041922220
ABSTRACT:
A power piston apparatus, comprising two or more double acting hydraulic piston drive means in which the cross-sectional areas of the pistons are identical and the cylinder spaces or chambers of which are hydraulically interconnected in crossed fashion above and below the pistons in the case of two cylinders, while being connected in series in the case of more than two cylinders having separately closed oil spaces of identical volumes, with each such oil space being connected to a positive-pressure oil supply through check valves for replenishing the leakage oil, and wherein said piston drive means have associated therewith metering cylinders with a coaxial and/or parallel direction of stroke, i.e. with mechanical connections between the ends of the piston rods.
REFERENCES:
patent: 3143924 (1964-08-01), Pearson et al.
patent: 3636817 (1972-01-01), Shapiro
patent: 3769881 (1973-11-01), Aoki
patent: 3805530 (1974-04-01), Richardson
Maslousky Paul E.
Robinson, Jr. Lee C.
Transform Verstarkungsmaschinen Aktiengesellschaft
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