Oil system, in particular oil system for a motor vehicle, with a valve for filling a high-pressure branch reservoir from a low-pressure branch

摘要

The invention relates to an oil system (10), in particular an oil system for a motor vehicle, with at least one pump (11, 13), an oil reservoir (12, 14) and a valve (15), the valve (15) having a first and a second connection (151, 152) and at least a first and a second switching position, wherein in the first switching position of the valve (15) the first and second connection (151, 152) are hydraulically connected to one another and in the second switching position of the valve (15) the first and the second connection (151, 152) are hydraulically separated from one another. The oil system can be implemented, in particular operated and / or produced in an energy- and / or cost-efficient manner, that the oil system (10) has a high-pressure branch (HD) and a low-pressure branch (LP), the high-pressure branch (HD) having a high-pressure pump (11) has a suction connection and a pressure connection and a high pressure branch oil reservoir (12) for the supply of the high pressure branch (HD), the high pressure pump (11) being hydraulically coupled with its suction connection to the high pressure branch oil reservoir (12) and the low pressure branch (LP) a low-pressure pump (13) with a suction connection and a pressure connection and wherein the valve (15) with its first connection (151) to the pressure connection of the low-pressure pump (13) and with its second connection (152) to the high-pressure branch oil reservoir (12) is hydraulically coupled, the valve (15) being designed such that the valve (15) assumes the first switching position when the pressure at the pressure connection of the Low-pressure pump (13) is below a certain threshold value, and assumes the second switching position when the pressure at the pressure connection of the low-pressure pump (13) reaches or exceeds the certain threshold value.