Cylinder apparatus

Details Cylinder apparatus Cylinder apparatus

1993-02-12

1994-05-17

Look, Edward K.

Motors: expansible chamber type

Working member position responsive motive fluid control

91461, 60533, 60546, F15B 1520, F15B 700

Patent

active

053118081

ABSTRACT:
A cylinder apparatus capable of effectively restraining a loss of energy with a simple structure at a low cost. When a piston 16 of a main cylinder 11 cuts off a communication between a subchamber 20 and a supply/exhaust passage 32, a pressure of the subchamber 20 is pushed by the piston 16 and thereby increased. However, an exhaust fluid from the subchamber 20 having the increased pressure is fed to a subcylinder 62. A piston 48 is moved while controlling a velocity by a flow rate control valve 70 in synchronization with the piston 16. This arrangement eliminates a necessity for a special position detector, etc.. The structure is therefore simplified, and the cost decreases. Simultaneously, the energy can be effectively utilized because of employing the exhaust fluid.

REFERENCES:
patent: 2456236 (1948-12-01), Acton
patent: 3216444 (1965-11-01), Herner
patent: 3537356 (1970-11-01), Odell
patent: 3691902 (1972-09-01), Lebzelter
patent: 3832852 (1974-09-01), Schmucker
patent: 3990349 (1976-11-01), Valantin
patent: 3999464 (1976-12-01), Grieger et al.
patent: 4463563 (1984-08-01), Krehbiel
patent: 4919039 (1990-04-01), Nutter

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