Take preceding retarber of wet clutch formula case

The utility model discloses a take preceding retarber of wet clutch formula case, including outer lane, inner circle, the pore wall of intaking, the outer lane side sets up the pore wall of intaking,it sets up first inlet tube to intake the pore wall inboard, the first inlet tube other end sets up the second inlet tube, the outer lane inboard sets up holding down plate, top board, the holding down plate set up down the depression bar in the middle of the top board lateral surface, go up the depression bar, the top board medial surface sets up the 5th brake block, the 5th brake block medial surface sets up the fourth brake block, fourth brake block medial surface sets up the third brake block, third brake block medial surface sets up the second brake block, second brake block medial surface sets up first brake block. Beneficial effect lies in: the utility model discloses the restriction of the speed of a motor vehicle in the time of can realizing large -tonnage lorry downhill path, thebrake shoe generates heat