Transistion valving for gerotor motors

Details Transistion valving for gerotor motors Transistion valving for gerotor motors

1998-05-19

2000-10-03

Nguyen, Hoang

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

418190, F01C 102

Patent

active

061264245

ABSTRACT:
A rotary fluid pressure device (11) comprising a gerotor motor of the type including a spool valve member (51) cooperating with a housing (13) to define a nominal valve overlap (X). The motor has a drive shaft (53) for transmitting the rotational movement of a gerotor star (27) to the spool valve member (51) and output shaft (49), such that, under high torque loads, the drive shaft (53) is subjected to drive twist, which would normally effect valve timing. In accordance with the invention, the spool valve member (51) and the housing are provided with a valve overlap (Y) which is substantially greater than the nominal overlap (X). The star (27) defines, on its profile (85), first (87) and second (89) recesses which permit communication between the minimum (30) and maximum (32) volume transition chambers and the respective expanding (29) and contracting (31) volume chambers (FIG. 8). The result is an improvement in both mechanical and volumetric efficiency, as well as smoother operation at low speed and high pressure.

REFERENCES:
patent: 1728529 (1929-09-01), Butler
patent: 2344628 (1944-03-01), Monahan
patent: 3981646 (1976-09-01), Bottoms
patent: 4145167 (1979-03-01), Baatrup
patent: 4558720 (1985-12-01), Larson et al.
patent: 5215453 (1993-06-01), Petersen et al.

Affiliated with

Also associated with

Rating

Transistion valving for gerotor motors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transistion valving for gerotor motors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transistion valving for gerotor motors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-189194