Subsea wellhead apparatus

Details Subsea wellhead apparatus Subsea wellhead apparatus

1990-08-14

1991-08-27

Fox, John C.

Fluid handling

Systems

Multi-way valve unit

91433, 166336, E21B 712

Patent

active

050425307

ABSTRACT:
There is disclosed a system for controlling the operation of a ram of a subsea blowout preventer connected to a piston shiftable between alternate positions within a cylinder. The system includes valve apparatus for so shifting the piston which includes an outlet connected to the cylinder, a first passageway through which hydraulic fluid may be supplied to the outlet, a second passageway through which hydraulic fluid may be vented from the outlet, and a valve member movable between positions alternately connecting the outlet with the first and second passageways, respectively, so as to selectively supply hydraulic fluid to or vent hydraulic fluid from the cylinder.

REFERENCES:
patent: 4061155 (1977-12-01), Sopha
patent: 4636934 (1987-01-01), Schwendemann et al.
patent: 4798527 (1989-01-01), Ginda

Affiliated with

Also associated with

Rating

Subsea wellhead apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1408439