Patent ID: 7845919
Filing Date: 2010-12-07
Classification: B60T,F04C

Abstract:
1. A gerotor apparatus comprising: a housing including a first member and a second member, wherein the first member includes a brake pin aperture formed therein, and the second member includes a second member aperture formed therein; a gerotor device interposed at least partially between the first member and the second member, wherein the gerotor includes a ring having a contoured inner surface defining a ring aperture and a star at least partially interposed within the ring aperture; and a brake pin at least partially interposed within the first member, wherein the brake pin includes a first annular surface and a second annular surface, the first annular surface defines, at least in part, a first brake chamber, the second annular surface defines, at least in part, a second brake chamber, a first fluid introduced into the first brake chamber will urge the brake pin in a first direction, and wherein a second fluid introduced into the second brake chamber will urge the brake pin generally in the first direction; wherein the first fluid is selectively directed toward the first brake chamber through a first channel formed in the first member, and wherein the second fluid is selectively directed toward the second brake chamber through a second channel formed in the first member, such that an input pressure is alternated between the first and second brake chambers during rotation of the star.