IMPROVED VACUUM PUMP

摘要

The present invention relates to an automotive vacuum pump 10. The vacuum pump 10 has a casing 12 defining a cavity having an inlet 14 and an outlet 16, wherein the cavity contains a rotor 18 and a vane slidably mounted to the rotor 18. The rotor 18 extends through a side 21 of the casing 12 to the exterior thereof and is provided with a coupling arrangement 26 to couple the rotor 18 to a drive member. The vacuum pump 10 is provided with a lubrication conduit 50, 56, 66, 68, 70, 72, 74 for the supply of lubricating fluid to the coupling arrangement 26, the conduit 50, 56, 66, 68, 70, 72, 74 including a portion 70, 72, 74 which extends through the rotor 18 and the coupling arrangement 26.