Patent ID: 8646609

Claim:
An oil collection tray, comprising: an oil nozzle at an outer side of the oil collection tray, the oil nozzle communicating with the inside of the oil collection tray, the oil collection tray comprising: a flange and a tray body, the tray body having a plurality of spaced vertical recesses formed on an outer wall thereof and a plurality of protruding ribs formed on an inner wall thereof corresponding in position to the vertical recesses, wherein, when a number of oil collection trays are stacked, the tray body of an upper oil collection tray is placed into the tray body of a lower oil collection tray, the flange of the upper oil collection tray is located on and contacts the top of the flange of the lower oil collection tray, the oil nozzles are positioned to be aligned with one another, the vertical recesses of the tray body of the upper oil collection tray mate with the protruding ribs of the tray body of the lower oil collection tray, and the tray body of the upper oil collection tray extrudes the air inside the tray body of the lower oil collection tray.