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US 6,648,619 B2Granted
Vacuum pump
AssigneeLuk, Automobiletechnik, GmbH & Co. KG
InventorDieter Otto
Life of this patent
Estimating the term…
Abstract
A vacuum pump, in particular for brake booster systems in motor vehicles, with a drivable rotor via which a blade in a housing can be set in rotation is proposed. The vacuum pump is distinguished by the fact that the rotor consists of plastic and is formed as one piece.
Claims44
A vacuum pump comprising:
- a drivable rotor via which a blade in a housing can be set in rotation where the rotor consists of plastic and is formed as one piece;
- said roter having at least two drive segments which are connected to one another by a closed ring;
- a coupling having a bearing surface;
- and
- an opposing surface disposed on at least one of the rotor drive segments for the bearing surface of the coupling where a torque transmitted from a drive shaft can be conducted into the rotor via the opposing surface.
2 more elements
A vacuum pump comprising:
- a drivable rotor via which a blade in a housing can be set in rotation where the rotor consists of plastic and is formed as one piece, the drivable rotor comprising a drive segment having a support length (l) and the rotor having a diameter and wherein the diameter (D) of the rotor lies in a range of 0.35≦l/D≦0.65;
- a coupling having a bearing surface;
- and
- an opposing surface disposed on said rotor drive segments for each bearing surface of the coupling where a torque transmitted from a drive shaft can be conducted into the rotor via the opposing surface.
1 more element
Dependencies are inferred from the claim text.