Title: Reversible refrigerant system and four-way reversing valve therefor or the like

Abstract: In a refrigerant system having a compressor and a pair of coils operatively interconnected to a reversing valve that is adapted to selectively interconnect one of the discharge side and suction side of the compressor to one of the coils while interconnecting the other of the discharge side and the suction side of the compressor to the other of the coils so that one of the coils will act as a condensor and the other coil will act as an evaporator, the improvement wherein the reversing valve has movable ball valve members for affecting the reversing operation thereof under the control of a solenoid operated pilot valve that biases a piston of a piston and cylinder arrangement that is operatively interconnected to the ball valve members.

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Inventors: Perkins, Charles H. (Newtown Square, PA, US)

Application Number: 686910
Filing Date: 1976-05-17
Publication_date: 1977-10-25
Assignee: Robertshaw Controls Company (Richmond, VA)
Primary Class(es): 62/324.6
Other Classes:
US Patent Ref:

1800352	Apr, 1931	Klees et al.	236/84.
2140451	Dec, 1938	Denison	236/84.
2300263	Oct, 1942	McLeod	137/596.
2758447	Aug, 1956	Prosek	137/625.
2878832	Mar, 1959	Hoge	137/596.
3119308	Jan, 1964	Dantowitz	137/596.
3190079	Jun, 1965	Lauer	62/324.
3194266	Jul, 1965	Abbott et al.	137/596.
3364942	Jan, 1968	Ney et al.	137/596.
3664581	May, 1972	Stannow	236/80.

Other Refs: 1,161,099537,372

Jan, 1964	DT
Jun, 1941	UK

Primary Examiner: Wayner, William E.
Assistant Examiner: Charvat, R. J.
Attorney: Candor, Candor & Tassone