Patent ID: 8904989
Filing Date: 2014-12-09
Classification: F01M,F02N

Abstract:
1. A lubrication structure for a hybrid vehicle power unit comprising: an engine having an engine body including a crankcase for rotatably bearing a crankshaft, a transmission accommodated in the crankcase so as to be interposed between the crankshaft and an output shaft which is rotatably borne on the crankcase so as to be continuous with a drive wheel; an electric motor mounted to the engine body for permitting transmission of a driving torque to the output shaft through the transmission; and a first oil pump interlockingly connected to the crankshaft for supplying at least a lubricating oil to the engine and the transmission and which is disposed on the engine body, and a second oil pump disposed on the engine body so as to supply the lubricating oil to the transmission; wherein the second oil pump has a pump shaft parallel to the crankshaft, and a driven gear fixed to the pump shaft constitutes part of a speed reducing gear train provided between the electric motor and the crankshaft, whereby the second oil pump is interlockingly connected to the electric motor, wherein each of the crankshaft and the output shaft has an axis set along the front-rear direction, and the electric motor extends further in a rearward direction than each of the crankshaft and the output shaft, and wherein the speed reducing gear train includes a starter driven gear on the crankshaft.