Patent ID: 6033197
Filing Date: 2000-03-07
Classification: F04C,Y10T

Abstract:
A gear pump having a bleed slot configuration to reduce the noise and pressures attributed to air in the oil, the gear pump comprising:a housing with a first surface, first and second intermeshing gears disposed in respective first and second intersecting cavities, each of the first and second intersecting cavities define a radius;a cover plate secured to the housing in contact with the first surface;an inlet passage communicating with one side of the intermeshing gears and an outlet passage communicating with the opposite side of the intermeshing gears;a first bleed slot defined in the housing generally adjacent the intersection of the surface, the first cavity, and the outlet passage; anda second bleed slot defined in the housing generally adjacent the intersection of the surface, the second cavity, and the outlet passage, the first and second bleed slots each having an arcuate length generally equal to the length between corresponding points on adjacent teeth of the associated gears.