Low-speed, high-torque gerotor motor and improved valving theref

Details Low-speed, high-torque gerotor motor and improved valving theref Low-speed, high-torque gerotor motor and improved valving theref

1989-04-24

1991-02-12

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

13762523, 251283, F01C 110, F03C 208, F16K 3144, F16K 3900

Patent

active

049920340

ABSTRACT:
A rotary fluid pressure device is provided of the type including a gerotor gear set (17) including an orbiting and rotating star (27) providing output torque by means of a main drive shaft (41). The device includes a valve housing section including a relatively thicker outer housing (61) and a relatively thinner inner housing (73) press-fit within the outer housing with an interference fit causing a preload force equal to the equivalent force of a predetermined fluid pressure, to avoid expansion of the spool bore (81). Disposed within the spool bore is a spool valve (55) which is relatively solid and able to withstand the predetermined fluid pressure without collapse of the spool valve. The spool valve defines axial slots (93) and (95) communicating by means of passages (97 and 99) with pressure-balancing recesses (101 and 103), whereby the valve spool is axially pressure balanced. The motor has improved volumetric efficiency, as well as improved mechanical efficiency.

REFERENCES:
patent: 2956512 (1960-10-01), Brundage
patent: 3270681 (1966-09-01), Charlson
patent: 3270683 (1966-09-01), McDermott
patent: 3309999 (1967-03-01), Patterson, Jr.
patent: 3389618 (1968-06-01), McDermott
patent: 3425448 (1969-02-01), Peterson
patent: 3477379 (1969-11-01), Henkel
patent: 3547564 (1970-12-01), Charlson
patent: 4569644 (1986-02-01), Swedberg
patent: 4818200 (1989-04-01), White, Jr.

Affiliated with

Also associated with

Rating

Low-speed, high-torque gerotor motor and improved valving theref does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low-speed, high-torque gerotor motor and improved valving theref, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low-speed, high-torque gerotor motor and improved valving theref will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-17823