| 摘要 |
PURPOSE:To enhance the extent of design freedom and reduce a size in an axial direction by installing a water pump, an oil pump and a sub-oil pump in parallel on a pump drive shaft driven with a crankshaft via a gear device. CONSTITUTION:The crankshaft 2 of an engine 1 is interlocked with the rotation axis of an oil pump 50 via a gear 10, and a water pump 60 and a sub oil pump 70 for power assistance in a power steering mechanism are arranged respectively at both sides of the oil pump 50. In this case, a projection 51a formed on the rotation axis 51 of the oil pump 50 is engaged with a notch groove 62a on the rotation axis 62 of the water pump 60 and at the same time, a projection 51b formed on the rotation axis 51 of the oil pump 50 is engaged with a recess 72a on the rotation axis 72 of the sub-oil pump 72, and each of rotation axes 51, 62 and 72 constitutes a pump drive shaft 100. |
