Patent ID: 8409041

Claim:
A multi-mode hybrid-type power transmission having a transmission housing including an input cover positively attached to a main housing portion, an oil pan for stowing hydraulic fluid in fluid communication with and attached to the main housing portion, and a transmission input shaft in driving communication with an engine crankshaft, the hybrid transmission comprising: a pump housing positively attached to the input cover to define a substantially cylindrical pump pocket therebetween, wherein said pump pocket circumscribes and is coaxially aligned with the transmission input shaft; a hydraulic pump assembly operatively housed at least partially inside said pump pocket; and a torque transmitting assembly positively attached to said pump housing, said torque transmitting assembly having a piston housing member coaxial with and longitudinally spaced from said pump housing to define a fluid inlet passage therebetween that is configured to fluidly communicate the oil pan with said pump pocket; wherein said inlet passage is at least partially radially aligned with and oriented radially adjacent to said pump pocket; and wherein said inlet passage includes a filter inlet portion positioned immediately adjacent to an outer peripheral edge of said pump housing, and a pump inlet portion positioned immediately adjacent to an inner peripheral edge of said pump housing, and wherein said filter inlet portion has a first longitudinal cross-sectional area and said pump inlet portion has a second longitudinal cross-sectional area that is less than said first longitudinal cross-sectional area.