Pressure regulating variable displacement vane pump

Details Pressure regulating variable displacement vane pump Pressure regulating variable displacement vane pump

2011-01-04

2011-01-04

Freay, Charles G (Department: 3746)

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

C417S219000, C418S026000, C418S027000, C418S030000

Reexamination Certificate

active

07862306

ABSTRACT:
A variable displacement engine oil vane pump includes a displacement control for controlling displacement of the pump. The control includes a cam ring in a housing pivotally connected to a wall of the housing by a pivot. The cam ring is internally engaged by slide vanes. A control chamber is defined by the cam ring and the housing wall. A control orifice provides for communication of control oil from a pressurized source to the control chamber. A vent chamber is generally opposite the control chamber and is defined by the cam ring and the housing wall. A dump chamber is defined by the cam ring and the housing wall and is generally disposed between the control chamber and the vent chamber. A dump orifice provides for communication between the control chamber and the dump chamber. A vent orifice provides for communication between the vent chamber and the dump chamber.

REFERENCES:
patent: 3743445 (1973-07-01), Dworak et al.
patent: 4437819 (1984-03-01), Merz
patent: 5752815 (1998-05-01), Muller
patent: 6763797 (2004-07-01), Staley et al.
patent: 7614858 (2009-11-01), Tanasuca
patent: 2003/0059313 (2003-03-01), Hanggi
patent: 2005/0019174 (2005-01-01), Uchino et al.
patent: 2007/0224067 (2007-09-01), Arnold et al.

Affiliated with

Also associated with

Rating

Pressure regulating variable displacement vane 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 Pressure regulating variable displacement vane pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure regulating variable displacement vane pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2743949