Bearing arrangement

Patent metadata

Field	Value
Publication number	US-2016290388-A1
Application number	US-201615183984-A
Country	US
Kind code	A1
Filing date	Jun 16, 2016
Priority date	Aug 24, 2011
Publication date	Oct 6, 2016
Grant date	—

Abstract

A bearing arrangement ( 28 ) having at least one radial air bearing ( 1 ) and/or having an axial air bearing ( 15 ′). The radial air bearing ( 1 ) has an inner annular bearing plate ( 7 ) and a spring plate ( 10 ) which surrounds the bearing plate ( 7 ) at the outside. The bearing plate and spring plate being formed as a single-piece component.

First claim

1 . An axial air bearing ( 15 ′) having
an annular bearing plate ( 16 ) and
an annular spring arrangement ( 17 , 18 , 19 , 19 ′, 25 ) on which is arranged a cover plate ( 38 ) which is provided with a device ( 42 ) for building up air pressure between the bearing plate ( 16 ) and the spring arrangement ( 17 , 18 , 19 , 19 ′, 25 ).

2 . The axial air bearing as claimed in claim 1 , wherein the spring arrangement ( 17 , 18 , 19 , 19 ′, 25 ) is provided with a multiplicity of raised protuberances ( 17 , 18 ) which are arranged on the bearing plate ( 16 ) and on which rest spring plate portions ( 19 ′) of a spring plate ( 19 ).

3 . The axial air bearing as claimed in claim 1 , further comprising a rotation prevention means ( 22 ).

4 . The axial air bearing as claimed in claim 3 , wherein the rotation prevention means ( 22 ) has a multiplicity of spaced-apart, circumferentially arranged receiving recesses ( 23 ) for rotation prevention pins.

5 . The axial air bearing as claimed in claim 1 , wherein the device for building up air pressure is in the form of a spiral duct arrangement ( 42 ).

6 . The axial air bearing as claimed in claim 1 , wherein the device for building up air pressure is in the form of an external air feed device which pumps air from the outside between the spring arrangement ( 17 , 18 , 19 , 19 ′, 25 ) and the bearing plate ( 16 ).

7 . The axial air bearing as claimed in claim 1 , wherein a support plate ( 25 ) is arranged between the spring plate ( 19 ) and the cover plate ( 38 ).

8 . An axial air bearing, characterized by an annular carrier plate ( 43 ) on which is arranged a curved ramp ( 50 ) for building up air pressure.

9 . The axial air bearing as claimed in claim 8 , wherein the curved ramp ( 50 ) is arranged so as to be inclined relative to a circumferential direction (U) of the support plate ( 43 ) by an angle (α) of >90°, preferably of 110° to 160°.

10 . The axial air bearing as claimed in claim 8 , wherein a spring plate ( 55 ) is arranged on the carrier plate ( 43 ).

11 . The axial air bearing as claimed in claim 8 , further comprising at least one air-cooling region ( 51 ) arranged on the carrier plate ( 43 ).

Assignees

• Borgwarner Inc

Inventors

• Metz Dietmar
• Mueller Martin

Classifications

• F05D2220/40

  in turbochargers · CPC title

• F16C2360/24

  Turbochargers · CPC title

• F02B39/10

  electric · CPC title

• F16C37/002

  of fluid bearings · CPC title

• F02B37/02

  Gas passages between engine outlet and pump drive, e.g. reservoirs · CPC title