Overrun air recirculation valve of an exhaust-gas turbocharger compressor

Patent metadata

Field	Value
Publication number	US-9964026-B2
Application number	US-201314651336-A
Country	US
Kind code	B2
Filing date	Nov 26, 2013
Priority date	Dec 20, 2012
Publication date	May 8, 2018
Grant date	May 8, 2018

Abstract

An overrun air recirculation valve 1 of an exhaust-gas turbocharger compressor 2 , having a valve housing 3 which has an interior 4 , having a diaphragm 5 which is guided in the interior 4 and which has an edge-side sealing means 6 ; and having a connecting means 7 provided on the valve housing 3 , wherein the sealing means 6 is in the form of a sealing means which acts in the radial direction R of the diaphragm 5.

First claim

The invention claimed is:

1. An overrun air recirculation valve ( 1 ) of an exhaust-gas turbocharger compressor ( 2 ), having
a valve housing ( 3 ) which has an interior ( 4 ) and a center axis (A) extending in an axial direction,
a diaphragm ( 5 ), which is guided in the interior ( 4 ) and has an annularly encircling sealing means ( 6 ); and
a connecting means ( 7 ) provided on the valve housing ( 3 ), comprising a multiplicity of clip lugs which extend in the axial direction of the valve housing and which each comprise detent catches,
wherein the annularly encircling sealing means ( 6 ) comprises first and second sealing lips ( 8 , 9 ),
wherein a fixing wedge ( 12 ) engages into a space ( 11 ) between the sealing lips ( 8 , 9 )
wherein the fixing wedge ( 12 ) has a radially outward facing surface and a radially inward facing surface, and
wherein the fixing wedge ( 12 ) radially outward facing surface urges the first sealing lip radially outward, and the fixing wedge ( 12 ) radially inward facing surface urges the second sealing lip radially inward.

2. The overrun air recirculation valve as claimed in claim 1 , wherein the sealing lips ( 8 , 9 ) are integrally connected to one another via a connecting portion ( 10 ).

3. The overrun air recirculation valve as claimed in claim 2 , wherein the sealing lips ( 8 , 9 ) form a V-shaped cross-sectional configuration.

4. The overrun air recirculation valve as claimed in claim 2 , wherein the sealing lips ( 8 , 9 ) form a U-shaped cross-sectional configuration.

5. The overrun air recirculation valve as claimed in claim 1 , wherein the fixing wedge ( 12 ) is conical.

6. The overrun air recirculation valve as claimed in claim 1 , wherein the fixing wedge ( 12 ) is of cylindrical form.

7. A compressor ( 2 ) of an exhaust-gas turbocharger ( 13 ), having
a compressor housing ( 14 ) which has a fastening flange ( 15 )
an overrun air recirculation valve ( 1 ) having a valve housing ( 3 ) which has an interior ( 4 ) and a center axis (A) extending in an axial direction, a diaphragm ( 5 ), which is guided in the interior ( 4 ) and has an annularly encircling sealing means ( 6 ); and
a connecting means ( 7 ) provided on the valve housing ( 3 ), comprising a multiplicity of clip lugs which extend in the axial direction of the valve housing and which each comprise detent catches adapted for latching engagement with said compressor housing fastening flange ( 15 ),
the fastening flange ( 15 ) having an annularly encircling receiving groove ( 16 ), which is open, for receiving the annularly encircling sealing means ( 6 ),
the annularly encircling sealing means ( 6 ) comprising first and second sealing lips ( 8 , 9 ),
wherein a fixing wedge ( 12 ) engages into a space ( 11 ) between the sealing lips ( 8 , 9 ),
wherein the fixing wedge ( 12 ) has a radially outward facing surface and a radially inward facing surface, and
wherein the fixing wedge ( 12 ) radially outward facing surface urges the first sealing lip radially outward to seal against the annularly encircling receiving groove ( 16 ), and the fixing wedge ( 12 ) radially inward facing surface urges the second sealing lip radially inward to seal against the annularly encircling receiving groove ( 16 ).

8. The compressor as claimed in claim 7 , wherein the compressor housing ( 14 ) has an annularly encircling detent edge ( 17 ).

9. A method for the mounting of an overrun air recirculation valve ( 1 ) on a compressor housing ( 14 ) of a compressor ( 2 ) of an exhaust-gas turbocharger ( 13 ), having the following method steps:
preassembling a valve housing ( 3 ) which has a center axis (A) extending in an axial direction and a connecting means ( 7 ) provided on the valve housing ( 3 ) comprising a multiplicity of clip lugs which extend in the axial direction of the valve housing and which each comprise detent catches adapted for latching engagement with a fastening flange ( 15 ), and a diaphragm ( 5 ) to form an overrun air recirculation valve cartridge; and
fastening the overrun air recirculation valve cartridge to the compressor housing ( 14 ) by latching engagement of said multiplicity of clip lugs with said fastening flange ( 15 ),
wherein the diaphragm includes annularly encircling sealing means ( 6 ) comprising first and second sealing lips ( 8 , 9 ), wherein a fixing wedge ( 12 ) engages into a space ( 11 ) between the sealing lips ( 8 , 9 ), and wherein, during the course of the fastening the first and second sealing lips ( 8 , 9 ) of the diaphragm ( 5 ) are radially sealed off in an annularly encircling receiving groove ( 16 ) of the fastening flange ( 15 ).

Assignees

• Borgwarner Inc
• Woco Ind Gmbh

Inventors

• Schumnig Oliver
• Brulin Franz-Josef
• Hofmann Torsten

Classifications

• Y10T29/49828

  Progressively advancing of work assembly station or assembled portion of work · CPC title

• F01D17/105

  by passing part of the fluid · CPC title

• F05D2220/40

  in turbochargers · CPC title

• F02B39/00

  Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00 · CPC title

• F02B37/16

  by bypassing charging air · CPC title