Expansible chamber devices – Displacement control of plural cylinders arranged in... – Adjustable abutment positioned within working chamber
Patent
1997-02-19
1998-05-05
Denion, Thomas E.
Expansible chamber devices
Displacement control of plural cylinders arranged in...
Adjustable abutment positioned within working chamber
92108, 92110, 92112, F01B 3114
Patent
active
057461104
ABSTRACT:
A compact drive cylinder with a cylinder barrel, an end cap and a guide cap is provided. In the cylinder barrel an axially sliding piston is arranged, on which a piston rod is mounted which extends through the guide cap. The piston divides a thrust chamber off in a fluid-tight manner chamber from a return chamber, the thrust chamber being connected with a thrust chamber port and the return chamber being connected with a return chamber port respectively in a fluid-tight fashion. Both the thrust chamber port and also the return chamber port are arranged in the end cap. An axially extending abutment rod having an abutment extends through the end cap and has its internal end extending through the piston into the return chamber so that an abutment for the piston is located in the return chamber. The piston is able to be slid a distance H axially on the abutment rod and is guided in a sealed manner; the abutment rod possesses a cavity, via which the return chamber is connected with the return chamber port for fluid flow therebetween.
REFERENCES:
patent: 3858485 (1975-01-01), Rosaen et al.
patent: 4242947 (1981-01-01), Renner et al.
patent: 4791854 (1988-12-01), Banicevic
patent: 4899642 (1990-02-01), Hwang
Denion Thomas E.
Festo KG
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