US 2021/0301816 A1 · VARIABLE DISPLACEMENT GEROTOR PUMP

Abstract

A gerotor pump includes a casing including a pumping chamber, a fixed gear being inserted into the casing and rotating at a fixed position, including a plurality of teeth formed inside a cylinder, and including at least one fluid hole at one end of the cylinder to allow a fluid to flow from the pumping chamber or into the pumping chamber, a moving gear provided inside the fixed gear and including one less number of teeth than a number of the plurality of teeth of the fixed gear and movable in an axial direction, a gear block arranged inside the fixed gear and movable in the axial direction, a gear ring arranged outside the moving gear and movable with respect to the moving gear in the axial direction, a gear ring cover provided at one end of the casing and including a hole in which the gear ring is rotated.

Claims10

Dependent claims

A variable displacement gerotor pump, comprising:

a casing including a pumping chamber having one or more fluid inlets;
a fixed gear being inserted into the casing and rotating at a fixed position, having a shape of a cylinder, including a plurality of teeth formed inside the cylinder, and including at least one fluid hole at one end of the cylinder to allow a fluid to flow from the pumping chamber or into the pumping chamber;
a moving gear provided inside the fixed gear and in mesh with the fixed gear and movable in an axial direction, the moving gear including one less number of teeth than a number of the plurality of teeth of the fixed gear;
a gear block arranged inside the fixed gear, the gear block being in contact with one end of the moving gear and movable in the axial direction;
a gear ring arranged outside the moving gear and movable with respect to the moving gear in the axial direction;
and
a gear ring cover provided at one end of the casing and including a hole in which the gear ring is rotated.

4 more elements

Dependencies are inferred from the claim text.

Variable displacement gerotor pump

Life of this patent

Variable displacement gerotor pump

Life of this patent

Abstract

Claims10