Patent ID: 7686137

Claim:
An oil separating structure of an automatic transmission, comprising: a transmission case; an oil pump disposed in the vicinity of a case bottom of the case; a driven sprocket attached to an oil pump rotary shaft; an oil strainer for the oil pump disposed below the pump in the transmission case; a first baffle plate having a shaft hole for inserting the oil pump rotary shaft and disposed between the driven sprocket of the oil pump, at least part of which is disposed within oil, and the oil strainer, for separating a space around the driven sprocket and a space around the oil strainer; a second baffle plate disposed on an opposite side of said first baffle plate with respect to the driven sprocket, for separating a space around the driven sprocket and a space around a transmission case located on the opposite side of said first baffle plate with respect to the driven sprocket; and an elastomeric member provided at a junction of said first baffle plate and said second baffle plate; wherein the elastomeric member is attached to one of the first and second baffle plates and extends as a bent plate contacting the other of the first and second baffle plates so as to provide a seal between both of them; and wherein said first baffle plate, said second baffle plate, and said elastomeric member enclose at least an oil-immersed path of a chain extended over the driven sprocket.