Oil pressure supply device

The invention provides an oil pressure supply device which enables a check valve to operate quickly. The hydraulic pressure supply device is provided with: a first oil pump for supplying oil to a supply path; a second oil pump driven together with the first oil pump or when the first oil pump is stopped; a first check valve which is provided in a first oil passage connecting the suction side of the second oil pump and the oil source, and which closes the first oil passage when the second oil pump is stopped; a second check valve which is provided in a second oil passage connecting the discharge side of the second oil pump and the supply passage, and which closes the second oil passage when the second oil pump is stopped; and a third oil passage into which the oil supplied to the supply passage flows and which uses the oil flowing into the third oil passage as an assist pressure for the operation of the second check valve when the second oil passage is closed. 本发明的油压供给装置使止回阀迅速动作。该油压供给装置具备：第一油泵，其将油供给至供给路；第二油泵，其