Pumps – With condition responsive pumped fluid control – Fluid flow rate responsive
Patent
1994-01-07
1996-05-07
Gluck, Richard E.
Pumps
With condition responsive pumped fluid control
Fluid flow rate responsive
417310, 417279, F04C 1504
Patent
active
055139604
ABSTRACT:
A rotary-vane pump includes a pressure chamber in which a constant pressure is developed, and a pair of discharge passages connecting the pressure chamber to a discharge port. On of the discharge passages is provided with only an orifice so as to supply a constant flow rate of fluid to the discharge port. The other of the discharge passages is provided with an orifice and a flow control valve. The flow control valve controls opening and closing of the other discharge passage in such a manner that the rate of flow through the other discharge passage decreases with increasing rotational speed of the pump. The flow control valve includes a spool having a pair of axially spaced first and second lands, an annular relieved section between the first and second lands, and a guide post. The annular relieved section forms an annular chamber constituting part of the other discharge passage. A spring for urging the spool in the direction to close the other discharge passage, has one axial end retained by the second land and the guide post. The spring is disposed in a spring chamber which is fluidly separated from the annular chamber by the second land. The spring chamber is in fluid communication with the discharge port.
REFERENCES:
patent: 2582753 (1952-01-01), Herbelleau
patent: 5192196 (1993-03-01), Gettel
patent: 5209648 (1993-05-01), Ishizaki et al.
patent: 5236315 (1993-08-01), Hamao et al.
Article in Olhydraulik By Von Dipl.-Ing. G. Bauer entitled Dozent an der Fachhochschule Ulm, publ. 1974.
Gluck Richard E.
Unisia Jecs Corporation
LandOfFree
Rotary-vane pump with improved discharge rate control means does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary-vane pump with improved discharge rate control means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary-vane pump with improved discharge rate control means will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1222765