Pumps – Expansible chamber type – Moving cylinder
Patent
1977-04-11
1978-07-25
Freeh, William L.
Pumps
Expansible chamber type
Moving cylinder
417559, 417457, F04B 2102, F04B 3910
Patent
active
041026110
ABSTRACT:
A plunger pump has a pump housing defining a pumping chamber into which a plunger extends for reciprocation between a retracted and an extended position. A sleeve valve is mounted on the plunger for displacement longitudinally thereof and for limited reciprocation therewith between an open position and a closed position in which it subdivides the pumping chamber into a pumping space within, and a suction space without, the sleeve valve. Inlet and outlet ports communicate with the suction and pumping spaces respectively. A sealing sleeve is mounted on a portion of reduced diameter of the plunger and defines with the latter a compensating space which communicates with a region of the interface between the sleeve valve and sealing sleeve at which the pressure of the fluid escaping from the pumping space through the interface is lower than the pumping pressure existing in the pumping space during the pumping stroke of the plunger. Thus, the pressure of the escaping liquid and the pressure in the compensating space deform the sealing sleeve into sealing contact with the internal surface of the sleeve valve. The sealing sleeve is sealingly mounted on two lands of the reduced portion of the plunger and is connected to the latter by a disk and a nut threadingly mounted on a threaded pin rigid with the plunger.
Freeh William L.
Paul Hammelmann Maschinenfabrik
Striker Michael J.
LandOfFree
Plunger 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 pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plunger pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1418347