Lubrication system
AssigneeHonda Motor Co., Ltd.
InventorsMotoshi Togasaki, Daijiro Eto
Life of this patent
Estimating the term…
Abstract
A lubrication system includes: a first pump capable of supplying oil drawn from the tank to the lubrication target; a second pump capable of discharging the oil drawn from the lubrication target to the tank; a relief valve capable of releasing the oil in the first flow path to the tank; a third pump capable of discharging the oil drawn through the intake opening to the tank, a switching valve capable of selectively switching a connection destination of the intake opening to either the lubrication target or the tank; and a valve control unit for switching the connection destination of the intake opening by controlling the switching valve.
Claims8
A lubrication system comprising:
- a first pump configured to draw oil from a tank and supply the oil to a lubrication target to be lubricated by the oil;
- a second pump configured to draw the oil from the lubrication target and discharge the oil to the tank;
- a relief valve configured to release the oil to the tank from a first flow path located between the first pump and the lubrication target via a second flow path different from the first flow path in a case that a pressure value of the oil in the first flow path becomes equal to or higher than a predetermined value;
- a third pump configured to discharge the oil drawn via an intake opening to the tank;
- a switching valve configured to selectively switch a connection destination of the intake opening between the lubrication target and the tank;
- and
- a valve control unit configured to control the switching valve to switch the connection destination of the intake opening of the third pump;
- wherein the valve control unit performs first control of the switching valve to connect the intake opening of the third pump to the tank while the oil is released from the first flow path to the tank via the relief valve and the second flow path.
Dependencies are inferred from the claim text.