Plunger-operated hydraulic pump

Details Plunger-operated hydraulic pump Plunger-operated hydraulic pump

1990-05-16

1991-11-26

Bertsch, Richard A.

Pumps

Expansible chamber type

Pumping member position controlled port

417554, F04B 704

Patent

active

050678817

ABSTRACT:
In a plunger-operated hydraulic pump, a cylinder has an ejection port extending from its upper end portion with an ejection valve provided at the ejection port. A piston and a plunger fitted in the cylinder are urged towards an eccentric cam by a first return spring and a second return spring which is stronger than the first return spring, respectively. The cylinder has a suction port in its lower end portion in such a manner that it is not closed by the plunger, so that the suction valve is opened by the downward stroke of the plunger, and during suction, the inflow resistance of the suction valve is minimized. Further, in the hydraulic pump, a plurality of cylinders are arranged at equal angular intervals so that the vibrations due to the reciprocations of the plungers are canceled by one another, thereby greatly suppressing the vibration of the cylinder block.

Affiliated with

Also associated with

Rating

Plunger-operated 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 Plunger-operated hydraulic pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plunger-operated hydraulic pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2384189