Patent ID: 9163508
Filing Date: 2015-10-20
Classification: F01C,F04C

Abstract:
1. A gerotor device comprising: a valving plate; a balancing plate structure; and a rotor positioned between the valving plate and the balancing plate structure, wherein high pressure fluid flowing from the valving plate toward the rotor between pushes the rotor toward the balancing plate structure, wherein the balancing plate structure includes a balancing plate and a second plate, wherein a cavity is defined between the balancing plate and the second plate; wherein the balancing plate includes a fluid passage having a check valve and fluid passes through the fluid passage for pressurizing the cavity; wherein the balancing plate includes first and second relief holes extending through the balancing plate connected with the cavity; wherein the balancing plate is configured to bow towards and bias against the rotor when the cavity is pressurized; wherein the rotor has n lobes, and the first relief hole is angularly spaced from the second relief hole about 360/(n+1)x degrees, where x is a whole number less than n.