Seal structure and control valve using said seal structure

Details Seal structure and control valve using said seal structure Seal structure and control valve using said seal structure

2011-08-02

2011-08-02

Fristoe, Jr., John K (Department: 3753)

Valves and valve actuation

Electrically actuated valve

Including solenoid

Reexamination Certificate

active

07988125

ABSTRACT:
A seal structure sealing a fitted part between the guide surface of a bearing part and a shaft part to prevent a fluid from flowing in a direction from a high-pressure fluid side to a low-pressure fluid side. The seal structure comprises a seal ring storage part having a radial contact surface surrounding the shaft part which is formed on the high-pressure fluid side of the bearing part and a seal ring disposed in the seal ring storage part, allowing its side surface facing the contact surface to come into contact with the contact surface, and allowing its inner peripheral surface to be fitted to the outer peripheral surface of the shaft part. The seal ring is formed in such a relative dimension that, even if elastically deformed by the pressure of the sealed fluid, the elastically deformed expanded portion thereof is not brought into contact with the peripheral surface of the seal ring storage part.

REFERENCES:
patent: 2872221 (1959-02-01), Burns et al.
patent: 5503367 (1996-04-01), Thompson et al.
patent: 2005/0189509 (2005-09-01), Peric
patent: 45-14976 (1970-06-01), None
patent: 46-18782 (1971-06-01), None
patent: 60-62667 (1985-05-01), None
patent: 2001-132847 (2001-05-01), None
patent: 2005-061303 (2005-03-01), None

Affiliated with

Also associated with

Rating

Seal structure and control valve using said seal structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2779807