OIL QUANTITY CONTROL DEVICE OF AUTOMATIC SPEED CHANGE GEAR FOR CAR

摘要

PURPOSE:To reduce an oil tank in size by operating a control valve between a main tank and a sub-tank when a signal for liquid level in the main tank is matched with the set external load condition in an oil quantity control device of an automatic speed change gear. CONSTITUTION:A control valve 7 is disposed in an oil circulating path formed by a main tank 1 and a sub-tank 13. A signal for oil level in the main tank 1 agrees with set conditions on temperature, rev count and angular acceleration speed of a car according to an external load, the control valve 7 is operated so that the oil level can ensure the required minimum. Thus, the size of the oil tank can be reduced.