Viscous damped valve for hydraulic pump

Details Viscous damped valve for hydraulic pump Viscous damped valve for hydraulic pump

1987-09-09

1988-12-20

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

91346, F04B 1700, F01L 3102

Patent

active

047922915

ABSTRACT:
The hydraulically powered fluid pump has a spool valve which controls the direction of travel of the pump. The spool valve is designed to switch between positions relatively slowly so that in between pump cycles, the ball checks associated with the pump may return under the force of gravity to their seats. This natural gravity return produces greatly decreased noise levels and increased seat life compared with the slamming action present in current pumps. The spool valve is viscous damped and of a closed centered construction to allow the relatively slow switchover to take place.

REFERENCES:
patent: 2119736 (1938-06-01), Coberly
patent: 2771907 (1956-11-01), Joy

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1907663