Patent ID: 8020666

Claim:
A lubrication device configured to be able to feed oil for lubricating a mechanism-to-be-lubricated to the mechanism, comprising: an oil pan configured to be able to store the oil in a space within the oil pan; an oil pump configured to be able to deliver the oil stored in the oil pan to the mechanism-to-be-lubricated; and an oil strainer having a suction port through which the oil residing in the space is sucked up, and connected to the oil pump via an oil flow path, wherein the oil pan comprises: an oil pan cover having an oil storage cavity section opening toward the mechanism-to-be-lubricated; an oil pan separator configured and disposed to divide a space within the oil storage cavity section into a first chamber in which the suction port of the oil strainer is disposed in a bottom region and a second chamber adjacent to the first chamber, the first chamber opens toward the mechanism-to-be-lubricated so as to communicate with the mechanism; and a one-way valve provided on the oil pan separator and configured to be able to allow substantially only outflow of the oil from the first chamber to the second chamber through functioning according to a difference in oil level between the first chamber and the second chamber.