Method and apparatus for a double acting reciprocating...

Details Method and apparatus for a double acting reciprocating... Method and apparatus for a double acting reciprocating...

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 1/00 (2006.01) F04B 9/115 (2006.01)

Patent

CA 2379447

A double-acting free-floating piston apparatus comprises two chambers wherein a fluid is introducable and removable. The free floating piston assembly comprises two pistons, each one defining a dynamic boundary to a respective one of the first and second chambers, and an elongated body disposed between and attached to each of the two pistons. A fluid recovery system comprises a first pair of ring seals spaced apart from each other and disposed around the circumference of the first piston, a one-way fluid conduit through which fluid is flowable from a space between the first pair of ring seals to the second chamber, a second pair of ring seals spaced apart from each other and disposed around the circumference of the second piston, and a one-way fluid conduit through which fluid is flowable from a space between the second pair of ring seals to the first chamber. A method is provided for capturing fluid that leaks from a first chamber, directing the fluid through the body of a reciprocating piston assembly and recovering the fluid in a second chamber.

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