Off axis pump with integrated chain and sprocket assembly

An off axis hydraulic pump for installation in an automatic transmission comprising, in combination,

• a torque converter housing having a first opening for receiving a rotating torque transfer member and a second opening offset from said first opening,
• a torque transfer member disposed in said first opening,
• a pump structure assembly including a chain drive sprocket engaged to said torque transfer member, a retaining cap disposed over said chain drive sprocket and including means for disposing said retaining cap on said pump structure assembly, a first stationary seal between said cap and said torque converter housing and a second shaft seal between said cap and said rotating torque transfer member, a hydraulic pump having a drive shaft, a driven chain sprocket mounted on said drive shaft, means for retaining said driven chain sprocket on said drive shaft, and a chain engaging said chain drive sprocket and said driven chain sprocket.

An off axis hydraulic pump for installation in an automatic transmission comprising, in combination,

• a torque converter housing having a first opening for receiving a rotating torque transfer member and defining a first axis and a second opening offset from said first opening and defining a second axis parallel to said first axis,
• a torque transfer member disposed in said first opening,
• a pump structure assembly including a chain drive sprocket mounted on and coupled to said torque transfer member by interengaging flats, a retaining cap disposed over said chain drive sprocket and including at least one dowel extending between said retaining cap and said pump assembly, a first fixed seal between said retaining cap and said torque converter housing and a second shaft seal between said retaining cap and said rotating torque transfer member, a hydraulic pump having a drive shaft, a driven chain sprocket mounted on and coupled to said drive shaft by interengaging splines, means for retaining said driven chain sprocket on said drive shaft, and a chain engaging said chain drive sprocket and said driven chain sprocket.