OIL SUPPLY DEVICE FOR AUTO TRANSMISSION

摘要

PURPOSE: An oil supplying device for an automatic transmission is provided to reduce noise and pressure oscillation of an oil pump by discharging total flow-rate based on a low pressure unit in a first oil pump. CONSTITUTION: A housing(110) comprises a mount space in inside. A first oil pump(120) creates first fluid pressure with oil absorbed from an oil tank and supplies it to a low pressure unit. A second oil pump(130) is separated from the first oil pump. The second oil pump creates second fluid pressure higher than the first fluid pressure and supplies it to a high pressure unit(173). A first driving unit and a second driving unit are connected to a driving shaft of the first oil pump and a driving shaft of the second oil pump at the outside the housing.