| CPC F04C 2/3568 (2013.01) [F04C 15/06 (2013.01); F04C 2240/30 (2013.01); F04C 2240/40 (2013.01)] | 17 Claims |
|
1. A vacuum pump (1) for generating a negative pressure, comprising:
a pump housing (4) having a pump chamber (5) with a rotor (9) and a motor (3) for driving the rotor (9) by means of a drive shaft (10) rotatable about a longitudinal axis (x),
a first and a second inlet line (40, 18), wherein the second inlet line (18) as a continuation of the first inlet line (40) leads through the pump housing (4) into the pump chamber (5),
a first outlet line (19) leading from the pump chamber (5) through the pump housing (4),
a first outlet valve (48),
a second outlet line (45) adjoining the pump housing (4),
wherein on the pump housing (4) a connecting part (6) with a connecting part housing (7) is attached to a connecting surface (17) running circumferentially to the longitudinal axis (x) and the first outlet valve (48) with the second outlet line (45) is formed in the connecting part (6),
wherein the connecting part (6) further comprises the first inlet line (40), with a first connecting opening (20′) formed in the connecting part (6) via which the first inlet line (40) is connected to the second inlet line (18).
|