Motors: expansible chamber type – Cutoff after single complete cycle – Reversal responsive to motive fluid pressure change
Patent
1977-01-17
1980-06-10
Cohen, Irwin C.
Motors: expansible chamber type
Cutoff after single complete cycle
Reversal responsive to motive fluid pressure change
91318, 172225, F01L 2502, F15B 1115
Patent
active
042066859
ABSTRACT:
A hydraulic turning device for a turn plow comprises a substantially upright double acting cylinder having a piston dividing the cylinder into an upper and a lower compartment and being operatively connected to the turn plow for turning the latter in two steps between a first and a second through 180.degree. reversed position. The upper and lower cylinder compartments are connected by fluid passage with a control device having a fluid inlet passage and a fluid return passage, and which is provided for reversing the movement of the piston in the cylinder wth a valve having an axially movable valve spool, a reversing piston and a reversing valve, in which the valve spool controls filling of the lower cylinder compartment. The control device includes further a pressure valve located between the upper cylinder compartment and the fluid return passage. The reversing piston controls filling of the upper cylinder compartment and is arranged in a fluid passage extending between the inlet passage and the upper cylinder compartment and provided with a non-return valve, whereas the reversing valve controls, dependent on the pressure acting thereon, movement of the reversing piston.
REFERENCES:
patent: 2169470 (1939-08-01), Miller et al.
patent: 2389661 (1945-11-01), Fischer
patent: 2925806 (1960-02-01), Taylor
patent: 2953118 (1960-09-01), Flick et al.
patent: 2979369 (1961-04-01), Flick et al.
patent: 3026676 (1962-03-01), Wenzel et al.
patent: 3106938 (1963-10-01), Gordon
patent: 3113490 (1963-12-01), Weaver
patent: 3353453 (1967-11-01), Ramspeck
patent: 3800537 (1974-04-01), Denis
patent: 4036106 (1977-07-01), Athy, Jr.
Cohen Irwin C.
Erwin Hengstler Fabrik Hydraulischer Hebezeuge
Striker Michael J.
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