Hydraulic motor and pressure relieving means for valve plate the

Details Hydraulic motor and pressure relieving means for valve plate the Hydraulic motor and pressure relieving means for valve plate the

1996-02-16

1997-01-14

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

418187, F01C 110, F03C 208

Patent

active

055932967

ABSTRACT:
A gerotor motor of the valve-in-star type in which the star (27) is disposed adjacent a stationary valve plate (15). The stationary valve plate (15) defines a plurality N+1 of valve passages (69), extending through the valve plate. On the surface (73) of the valve plate (15) adjacent the endcap member (14), the valve plate defines a plurality of pressure relieving recesses (79), each one being disposed between a pair of adjacent valve passages (69). Each of the recesses (79) is in fluid communication with an O-ring groove (81), which is at low pressure. Thus, any leakage from a high pressure passage (69) to an adjacent low pressure passage (69) is received within the intervening relieving recess (79), substantially eliminating any separating forces between the endcap member (14) and the stationary valve plate (15) This results in substantially improved volumetric efficiency of the motor at higher pressure differentials.

REFERENCES:
patent: 3270683 (1966-09-01), McDermott
patent: 3289542 (1966-12-01), Fikse
patent: 4390329 (1983-06-01), Thorson
patent: 4411607 (1983-10-01), Wusthof et al.
patent: 4439119 (1984-03-01), Petersen et al.
patent: 4597725 (1986-07-01), Petersen et al.
patent: 4976594 (1990-12-01), Bernstrom
patent: 5211551 (1993-05-01), Uppal et al.
patent: 5516268 (1996-05-01), Kassen et al.

Affiliated with

Also associated with

Rating

Hydraulic motor and pressure relieving means for valve plate the does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic motor and pressure relieving means for valve plate the, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic motor and pressure relieving means for valve plate the will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1384030