Shuttle valve of a reciprocating pneumatic motor for hydraulics

Details Shuttle valve of a reciprocating pneumatic motor for hydraulics Shuttle valve of a reciprocating pneumatic motor for hydraulics

1998-02-13

2000-01-11

Lopez, F. Daniel

Motors: expansible chamber type

Cyclically operable

Distributor in piston

91224, 91225, F01L 2104, F01L 2504

Patent

active

06012377&

ABSTRACT:
A shuttle valve mounted between a pneumatic piston and a ring plate in a reciprocating pneumatic motor and moved to control the passage between a shuttle compression chamber and a radial air inlet hole in the pneumatic piston, the shuttle valve having a press rod supported on a compression spring and forced out of the front end of the body of the shuttle valve for pressing against the cylinder cover of the reciprocating pneumatic motor, enabling the shuttle valve to shut off automatically at an early stage so as to extend the piston stroke when the pneumatic piston bears the load, or to shorten the piston stroke when the pneumatic piston bears no load.

REFERENCES:
patent: 1642074 (1927-09-01), Lewis
patent: 3233426 (1966-02-01), Cowans
patent: 3354787 (1967-11-01), Takahata
patent: 3597121 (1971-08-01), McClocklin
patent: 4352644 (1982-10-01), Landrum et al.
patent: 5341723 (1994-08-01), Hung

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