Gerotor motor and improved spool valve therefor

Details Gerotor motor and improved spool valve therefor Gerotor motor and improved spool valve therefor

1998-01-23

2000-03-07

Denion, Thomas

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

418 613, F01C 102

Patent

active

06033195&

ABSTRACT:
A gerotor motor (11) of the spool valve type, in which the spool valve (45) includes a central sealing land (85), effectively separating a high pressure region (87) from a low pressure region (89), when the motor is operating in the normal low-speed, high-torque mode. This separation of high and low pressure involves having two separate commutating openings (81,83) associated with each of the passages (79) communicating with the volume chambers (25,27) of the gerotor gear set (17). The present invention also includes an improved two-speed capability in which, in the high-speed, low-torque mode of operation, high pressure fluid is recirculated to certain of the contracting volume chambers (27), thus eliminating cavitation in the high-speed, low-torque mode.

REFERENCES:
patent: 3270681 (1966-09-01), Charlson
patent: 3514234 (1970-05-01), Albers et al.
patent: 3778198 (1973-12-01), Giversen
patent: 3873248 (1975-03-01), Johnson
patent: 4004866 (1977-01-01), Ohrberg
patent: 4171938 (1979-10-01), Pahl
patent: 4311171 (1982-01-01), Roberts
patent: 4533302 (1985-08-01), Begley
patent: 4558720 (1985-12-01), Larson
patent: 4934911 (1990-06-01), Schulz
patent: 4992034 (1991-02-01), Uppal
patent: 5061160 (1991-10-01), Kinder
patent: 5228846 (1993-07-01), Lammers et al.

Affiliated with

Also associated with

Rating

Gerotor motor and improved spool valve therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gerotor motor and improved spool valve therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gerotor motor and improved spool valve therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-357139