Hydraulic actuator for control of valves

Details Hydraulic actuator for control of valves Hydraulic actuator for control of valves

1984-09-12

1986-01-14

Maslousky, Paul E.

Expansible chamber devices

With separate biasing means for working member

Fluid spring

92 31, 92152, F01B 700

Patent

active

045639418

ABSTRACT:
The invention relates to a hydraulic actuator for the control of valves such as the kind found in ships. The actuator has a piston which is actuated in a valve opening direction with a hydraulic pressure medium and may be actuated in the return direction by a gas-compression type spring. Certain emergency situations require an immediate closing of a valve or group of valves controlled by the piston acting through a spindle. Emergency closing apparatus includes an abutment on the piston which forms an annular chamber when the piston abuts the end wall of the piston cylinder. The housing has an emergency passage means in fluid communication with the annular chamber when the piston abuts the end wall to effect an emergency moving of the piston in a valve closing direction when a pressure medium is admitted into the emergency passage.

REFERENCES:
patent: 3509795 (1970-05-01), Woodward
patent: 3925985 (1975-12-01), Peterson
patent: 3977305 (1976-08-01), Sondergaad
patent: 4103591 (1978-08-01), Reiersdal
patent: 4226167 (1980-10-01), Lew

Affiliated with

Also associated with

Rating

Hydraulic actuator for control of valves does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic actuator for control of valves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic actuator for control of valves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-425524