Expansion valve

Details Expansion valve Expansion valve

1999-07-13

2000-09-12

Tapolcai, William E.

Valves and valve actuation

Balanced valves

Reciprocating

623246, 236 92B, F25B 4104

Patent

active

061165743

ABSTRACT:
An expansion valve having a valve element, which valve element co-operates with a valve seat arranged between a first port and a second port in a housing, and is movable by an operating device in one direction and by a restoring device in the opposite direction along the same axis relative to the valve seat. It is desirable to make the properties independent of the operating direction in which the refrigerant flows. For that purpose, the valve element is connected to a first pressure surface arrangement, which comprises first pressure surfaces of substantially equal size acting in opposite directions, on which the pressure in the first port acts when the valve is closed, and to a second pressure surface arrangement, which comprises second pressure surfaces of substantially equal size acting in opposite directions, on which the pressure in the second port acts when the valve is closed.

REFERENCES:
patent: 3738573 (1973-06-01), Eschbaugh et al.
patent: 3967782 (1976-07-01), Eschbaugh et al.
patent: 4618092 (1986-10-01), Fukushima et al.
patent: 4750334 (1988-06-01), Leimbach
patent: 4852364 (1989-08-01), Seener et al.

Affiliated with

Also associated with

Rating

Expansion valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Expansion valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expansion valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-88624