Flow passage coupling unit

Details Flow passage coupling unit Flow passage coupling unit

1990-04-03

1990-10-16

Chambers, A. Michael

Valves and valve actuation

With correlated flow path

Valve operated by joining flow path sections

F16L 3728

Patent

active

049628810

ABSTRACT:
A flow passage coupling unit (1) for flow passages (2, 4) of movable and fixed members (3, 5), which includes a cylindrical body (6) secured to the movable member and having a large bore (10) communicating with the flow passage, a small bore (11) and a value seat (12) formed between the large and small bores; a sliding valve (7) having a cylindrical sliding surface (7a) which slidably fits in the small bore and has an axial passage (14), a valve head (17) movable within the large bore, and a through-hole (16) provided through the cylindrical sliding surface adjacent the valve head; a coil spring (13) provided within the large bore for biasing the valve head against the valve seat so that communication between the large bore and the axial passage is normally cut off; and the valve seat (12) made in a plane which is perpendicular to an axis of the sliding valve.

REFERENCES:
patent: 1767391 (1930-06-01), Muller
patent: 2024682 (1935-12-01), Eisenman
patent: 2265267 (1941-12-01), Cowles
patent: 4613112 (1986-09-01), Philipot et al.

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