Fluid handling – Line condition change responsive valves – Bi-directional flow valves
Patent
1994-12-21
1996-12-10
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
Bi-directional flow valves
62174, 2511496, 1374936, F16K 17168
Patent
active
055822029
ABSTRACT:
A combined charge/relief valve for an air conditioner system includes an outer housing that defines a first passageway and an inner housing that defines a second passageway. The inner housing includes an O-ring seal and is biased by an outer spring to a sealed position to seal the first passageway. The inner housing can be moved to a charging position by the direct application of mechanical force in order to facilitate high rate charging of the air conditioner system. The inner housing includes a valve member movable between an opened and a closed position to seal the inner passageway. The valve member is biased to the closed position by a precision relief spring. Excessive refrigerant pressure in the air conditioner system moves the valve member from the closed to the open position in order to vent refrigerant to the environment.
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Bridgeport DWG 614281-Air Conditioner Charge Valve (Apr. 14, 1993).
Bridgeport DWG 540357-Air Conditioner Pressure Relief Valve (Oct. 19, 1993).
Sedco DWG-Air Conditioner Pressure Relief Valve (Jan. 19, 1989).
Ford DWG F03H-19D644-AA-Air Conditioner Pressure Relief Valve (Nov. 4, 1985).
Zexel DWG KC-45/50-Air Conditioner Pressure Relief Valve (Undated).
DWG-Prior Art Harrison Air Conditioner Charge Valve (Undated).
DWG-Prior Art Air Conditioner Charge Valve. (Undated).
DWG SD-510ZB9652-Prior Art Air Conditioner Pressure Relief Valve (Undated).
Gilbert Major
Schultz Jeffrey A.
Bridge Products, Inc.
Hepperle Stephen M.
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