Gear pump with counterbalanced radial forces and two piece radia

Details Gear pump with counterbalanced radial forces and two piece radia Gear pump with counterbalanced radial forces and two piece radia

1991-02-20

1992-11-10

Bertsch, Richard A.

Rotary expansible chamber devices

With changeable working chamber magnitude

Intermeshing rotary members

418 21, 418134, 418196, 418140, F04C 210, F04C 218, F04C 1500

Patent

active

051619610

ABSTRACT:
By using multiple external gears and internal gears, which are engaged with each other, and multiple radial sealing elements and axial sealing elements, a pump or motor, which includes multiple equivalent pumps or motors, is made. Each gear included in thus made gear pump or motor is radially hydraulically counterbalanced, even completely hydro-mechanically counterbalanced, loads on bearings being able to become zero. Axial gaps and radial gaps both have been compensated. The pump or motor can stagelessly vary its output. Accordingly, a gear pump or motor with constant output or stagelessly variable output, as well as a relevant stageless hydraulic speed variator, can be made, which will have lower production cost, higher transmission efficiency and higher power density.

REFERENCES:
patent: 2801593 (1957-08-01), Mosbacher
patent: 3225699 (1965-12-01), Wiggermann
patent: 3375661 (1968-04-01), Shachter
patent: 3588295 (1971-06-01), Burk
patent: 3873252 (1975-03-01), Motomura et al.
patent: 4674615 (1987-06-01), Snyder
patent: 4780070 (1988-10-01), Hertell
patent: 4872536 (1986-10-01), Yue
PCT/AU85/00212; WO 86/02126; Applicant Hooker, Sydney, Graham International Publicat Date: Apr. 10, 1986, abstract only.

Affiliated with

Also associated with

Rating

Gear pump with counterbalanced radial forces and two piece radia does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gear pump with counterbalanced radial forces and two piece radia, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gear pump with counterbalanced radial forces and two piece radia will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2290037