Fluid control valve

Details Fluid control valve Fluid control valve

2006-10-10

2006-10-10

Jacyna, J. Casimer (Department: 3751)

Valves and valve actuation

Electrically actuated valve

Including solenoid

C251S205000, C251S129180, C251S282000, C137S506000

Reexamination Certificate

active

07118088

ABSTRACT:
To provide a fluid control valve which is capable of preventing or suppressing degradation of the accuracy of flow rate control dependent on the lift amount of a valve element from a valve seat. An expansion valve is configured such that a valve portion and a valve portion integrally formed with a valve element move to and away from a valve seat and a valve seat, respectively, simultaneously. Further, the expansion valve is configured such that a flow passage cross-section formed by a gap between the valve portion and the valve seat, and a flow passage cross-section formed by a gap between the valve portion and the valve seat have approximately the same size when the expansion valve is open. As a result, it is possible to almost cancel the influence of changes in effective pressure-receiving areas acting on the respective valve elements when the expansion valve is open, on the pressure balance, thereby making it possible to prevent degradation of the accuracy of flow rate control dependent on the lift amount of the valve elements.

REFERENCES:
patent: 3498331 (1970-03-01), Grune
patent: 4074700 (1978-02-01), Engle
patent: 4202526 (1980-05-01), Muller et al.
patent: 4314585 (1982-02-01), Nishimiya et al.
patent: 4338966 (1982-07-01), Smith
patent: 4895126 (1990-01-01), Nishimiya et al.
patent: 5443241 (1995-08-01), Odaira et al.
patent: 5765513 (1998-06-01), Diehl et al.
patent: 6394415 (2002-05-01), Ohmi et al.
patent: 6702252 (2004-03-01), Ben-Asher et al.
patent: 6712333 (2004-03-01), Rovira et al.
patent: 2002/0074532 (2002-06-01), Rovira et al.
patent: 2002/0125451 (2002-09-01), Ben-Asher et al.
Patent Abstracts of Japan, Publication No. 2002-372164, published on Dec. 26, 2002.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3687558