Leak-proof ABS/TCS pump assembly with non-return valve

摘要

PCT No. PCT/EP93/03185 Sec. 371 Date Nov. 3, 1994 Sec. 102(e) Date Nov. 3, 1994 PCT Filed Nov. 13, 1993 PCT Pub. No. WO94/12375 PCT Pub. Date Jun. 9, 1994A pump assembly for a controlled brake system diverts pressure fluid entrained by the pistons which collects in the space around the eccentric to prevent it from becoming pressurized by the moving pistons. A non-return valve inserted into an exit duct is dimensioned such that it opens when exposed to the pressure of the collected pressure fluid, and prevents the ingress of dirt and moisture in the opposite direction.