This circuit diagram studies a kitchen exhaust fan in which a drive motor, a fan and a fuel collection chamber are mounted, and is characterized in that a tubular suction chamber is connected to the intake end of the fan chamber. The utility model has the beneficial effects that the air inlet condition of the fan is improved by increasing the air inlet in front of the fan chamber, and the fan efficiency is improved. Due to the centrifugal force of the fan inside the fan, the oil particles are thrown onto the inner wall of the fan and flow into the oil collection bin. The tubular discharge bin is tilted upward to further reduce the possibility of oil leakage to the outer wall, and the oil is collected into the oil collection bin. The rain cover outside the discharge port can prevent rainwater from flowing into the exhaust fan. Cummins Ferrule Seal,Cummins Rectangular Ring Seal,Cummins O Ring Seal,Cummins Rectangular Ring Seal Chongqing LDJM Engine Parts Center , https://www.ckcummins.com