Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1990-02-05
1991-03-12
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
13762537, F16K 31363
Patent
active
049985582
ABSTRACT:
A solar powered water heating system including an atmospherically sealed regulating valve (40) initially opening to pass fluid at a minimum selected pressure and remaining open to pass fluid until the fluid pressure reaches a selected reduced pressure including a housing (41), a valve housing cap (42) enclosing the open end of the housing, a valve element (60) movable axially of the housing, a first chamber (47) in the housing axially of the valve element in one direction, a second chamber (58) in the housing axially of the valve element in the other direction, a bore (70, 83) extending through the valve element connecting the first chamber and the second chamber, a fluid inlet passage (45) supplying fluid to the first and second chambers, a third chamber (51) in the housing communicating with fluid outlet passages, and a biasing element (85) permitting movement of the valve element for fluid communication between the first chamber and the third chamber at the minimum selected pressure in the fluid inlet passage and effecting movement of the valve element for interrupting fluid communication between the first chamber and the third chamber at the selected reduced pressure.
REFERENCES:
patent: 3236261 (1966-02-01), Morgan
patent: 3428086 (1969-02-01), Glasgow
patent: 3783848 (1974-01-01), Ranft et al.
patent: 3791413 (1974-02-01), Muller et al.
patent: 4763688 (1988-08-01), Morris
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