Electric machine

Patent metadata

Field	Value
Publication number	US-2016372986-A1
Application number	US-201615183326-A
Country	US
Kind code	A1
Filing date	Jun 15, 2016
Priority date	Jun 16, 2015
Publication date	Dec 22, 2016
Grant date	—

Abstract

An electric machine, includes a housing; a rotor supported for rotation relative to the housing about a rotation axis, wherein the rotor has at least one rotor projection which extends axially toward the housing, wherein the housing has at least one housing projection which extends axially toward the rotor, wherein the rotor projection and the housing projection overlap each other in a direction along the rotation axis; and at least one gasket received between the rotor projection and the housing projection for sealing a fluid space formed between the rotor and the housing

First claim

What is claimed is:

1 . An electric machine, comprising:
a housing; a rotor supported for rotation relative to the housing about a rotation axis, said rotor having at least one rotor projection which extends axially toward the housing, said housing having at least one housing projection which extends axially toward the rotor, said rotor projection and said housing projection overlapping each other in a direction along the rotation axis; and at least one gasket received between the rotor projection and the housing projection for sealing a fluid space formed between the rotor and the housing.

2 . The electric machine of claim 1 , further comprising a sealing arranged between the rotor and the housing, said fluid space being sealed on one side by the gasket and on another side by the sealing.

3 . The electric machine of claim 2 , wherein the sealing is constructed as a further gasket.

4 . The electric machine of claim 2 , wherein the sealing is constructed as a bearing.

5 . The electric machine of claim 4 , wherein the sealing is constructed as a rotor bearing for supporting the rotor relative to the housing.

6 . The electric machine of claim 3 , wherein the gasket and the further gasket are arranged so as to overlap with each other in axial direction.

7 . The electric machine of claim 3 , wherein the housing has a further housing projection and/or the rotor has a further rotor projection, said further gasket being assigned to the further housing projection and/or the further rotor projection.

8 . The electric machine of claim 7 , wherein when viewed in longitudinal section, the housing projection is received between the rotor projection and the further rotor projection.

9 . The electric machine of claim 1 , wherein at least regions of the fluid space are delimited by a shaft of the rotor.

10 . The electric machine of claim 9 , characterized in that the further gasket is arranged between the housing and the shaft of the rotor.

11 . The electric machine of claim 1 , wherein the fluid space is fluid tight and contains a heat transfer fluid.

12 . The electric machine of claim 1 , further comprising a coolant circuit, said fluid space being fluidly connected to the coolant circuit.

Assignees

• Audi Ag

Inventors

• Brune Kai
• Chernogorski Vladimir
• Juris Peter
• Brune Andre

Classifications

• H02K5/10

  with arrangements for protection from ingress, e.g. water or fingers · CPC title

• H02K1/20

  with channels or ducts for flow of cooling medium · CPC title

• H02K5/1732

  radially supporting the rotary shaft at both ends of the rotor (H02K5/1737 takes precedence) · CPC title

• H02K5/124 Primary

  Sealing of shafts · CPC title

• H02K9/19 Primary

  for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil · CPC title