Patent ID: 6189411
Filing Date: 2001-02-20
Classification: F04C,F16H,Y10T

Abstract:
An axle assembly lubricant/coolant gear pump for conducting lubricant/coolant out of a reservoir in an axle housing, the axle housing having a bearing for a pinion shaft, said gear pump comprising:a hollow casing removably mountable to the interior of the axle housing, said casing defining an interior chamber;a pair of pump gears contained within said interior chamber, said pump gears comprising:a drive gear mounted on a drive gear shaft for coupling to the pinion shaft, said drive gear having teeth, said drive gear shaft comprising a hex-spline; anda driven gear coupled to said drive gear, said driven gear mounted on a driven gear shaft, said driven gear having teeth non-tooth tolerantly engaging said teeth of said drive gear;an input port formed in and through said casing for receiving lubricant/coolant into said interior chamber;means for conducting lubricant/coolant into said pump connected to said input port;an output port formed in and through said casing for directing lubricant/coolant away from said interior chamber; anda bearing lubrication port formed in and through said casing for conducting lubricant/coolant to the bearing.