Exhaust-gas turbocharger

Patent metadata

Field	Value
Publication number	US-9909454-B2
Application number	US-201113879936-A
Country	US
Kind code	B2
Filing date	Oct 24, 2011
Priority date	Oct 28, 2010
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

An exhaust-gas turbocharger ( 1 ) having a compressor ( 2 ) which has a compressor housing ( 3 ), a turbine ( 4 ) which has a turbine housing ( 5 ), a bearing housing ( 6 ) between the compressor housing ( 3 ) and the turbine housing ( 5 ), and a control capsule ( 7 ) which has a housing ( 8 ) on which is provided a retaining device ( 9 ) which interacts with a fastening device ( 10 ) on the turbocharger in order to fix the control capsule ( 6 ) to the compressor housing ( 3 ), the turbine housing ( 5 ) or the bearing housing ( 6 ). The retaining device ( 9 ) is arranged on an outer circumferential region ( 11 ) of the control capsule ( 7 ), and the fastening device ( 10 ) fixes the retaining device ( 9 ) in a non-positively locking manner.

First claim

The invention claimed is:

1. An exhaust-gas turbocharger ( 1 ) with
a compressor ( 2 ) which has a compressor housing ( 3 ),
a turbine ( 4 ) which has a turbine housing ( 5 ),
a bearing housing ( 6 ) between the compressor housing ( 3 ) and the turbine housing ( 5 ), and
a control capsule ( 7 ) including
a control rod ( 34 ) and
a control capsule housing ( 8 ) having a longitudinal axis, on which control capsule housing ( 8 ) is provided a retaining device ( 9 ) which interacts with a fastening device ( 10 ) in order to fix the control capsule ( 7 ) housing ( 8 ) to the compressor housing ( 3 ), the turbine housing ( 5 ) or the bearing housing ( 6 )

wherein the retaining device ( 9 ) is a dovetail or a projection having two parallel engagement surfaces for engagement with complementary engagement surfaces of the fastening device ( 10 ),
wherein the fastening device ( 10 ) has a clamping pad ( 17 ) including a first engagement surface, which clamping pad is integrally connected to the compressor housing ( 3 ), the turbine housing ( 5 ) or the bearing housing ( 6 ) and which clamping pad ( 17 ) is provided with a counterpart ( 18 ; 22 ) having a second engagement surface, the first and second engagement surfaces forming a clamping groove ( 19 ), the fastening device further comprising fastening means having a first position for releasing clamping engagement the counterpart ( 18 ; 22 ) against the clamping pad ( 17 ) and a second position for urging the counterpart ( 18 ; 22 ) against the clamping pad ( 17 ) for clamping engagement of the retaining device ( 9 ) in the clamping groove ( 19 ), and
wherein, when said fastening means releases clamping engagement of the counterpart ( 18 ; 22 ) against the clamping pad ( 17 ), the control capsule is moveable along the longitudinal axis of the control capsule housing ( 8 ), and wherein, when said fastening means urges the counterpart ( 18 ; 22 ) against the clamping pad ( 17 ), the control capsule is not moveable along the longitudinal axis of the control capsule housing ( 8 ).

2. The exhaust-gas turbocharger as claimed in claim 1 , wherein the housing ( 8 ) of the control capsule has at least two housing shells ( 12 , 13 ), and wherein the retaining device ( 9 ) is arranged on an outer circumferential region ( 11 ) of one ( 12 ) of the housing shells ( 12 , 13 ).

3. The exhaust-gas turbocharger as claimed in claim 1 , wherein the retaining device ( 9 ) is arranged directly on the outer circumferential region ( 11 ) of the housing ( 8 ) of the control capsule.

4. The exhaust-gas turbocharger as claimed in claim 1 , wherein the retaining device ( 9 ) is arranged indirectly on the outer circumferential region ( 11 ) of the housing ( 8 ) of the control capsule.

5. The exhaust-gas turbocharger as claimed in claim 4 , wherein the retaining device ( 9 ) is arranged on a holder ( 14 ) which is arranged on the outer circumferential region ( 11 ) of the control capsule ( 7 ).

6. The exhaust-gas turbocharger as claimed in claim 1 , wherein the retaining device ( 9 ) is a dovetail.

7. An exhaust-gas turbocharger ( 1 ) with
a compressor ( 2 ) which has a compressor housing ( 3 ),
a turbine ( 4 ) which has a turbine housing ( 5 ),
a bearing housing ( 6 ) between the compressor housing ( 3 ) and the turbine housing ( 5 ), and
a control capsule ( 7 ) which has an actuating rod ( 34 ), the control capsule further having a housing ( 8 ) having a longitudinal axis, on which control capsule housing ( 8 ) is provided a retaining device ( 9 ) which interacts with a fastening device ( 10 ) in order to fix the control capsule ( 7 ) to the compressor housing ( 3 ), the turbine housing ( 5 ) or the bearing housing ( 6 ) in a position which is adjustable along the longitudinal axis of the control capsule housing ( 8 ), wherein the retaining device ( 9 ) is arranged on an outer circumferential region ( 11 ) of the control capsule ( 7 ), and wherein the fastening device ( 10 ) further comprises fastening means having a first position for releasing clamping engagement with the retaining device ( 9 ) and a second position for clamping engagement with the retaining device ( 9 ),
wherein, when said fastening means releases clamping engagement, the control capsule is moveable along the longitudinal axis of the control capsule housing ( 8 ), and wherein, when said fastening means is in clamping engagement, the control capsule is not moveable along the longitudinal axis of the control capsule housing ( 8 ).

8. The exhaust-gas turbocharger as claimed in claim 7 wherein the fastening device ( 10 ) is designed as a tension strap device ( 10 ′A, 10 ′B; 16 A, 16 B, 25 , 26 , 27 ).

9. The exhaust-gas turbocharger as claimed in claim 7 , wherein the fastening device ( 7 ) is designed as a bracket arrangement ( 16 , 28 , 29 , 30 ).

10. The exhaust-gas turbocharger as claimed in claim 7 , wherein the fastening device ( 10 ) is designed as a drill stand arrangement ( 31 , 32 , 33 ).

Assignees

• Heidingsfelder Leif
• Ramb Thomas
• Fitting Thomas
• Stilgenbauer Michael
• Christmann Ralf
• Borgwarner Inc

Inventors

• Heidingsfelder Leif
• Ramb Thomas
• Fitting Thomas
• Stilgenbauer Michael
• Christmann Ralf

Classifications

• Y02T10/144

  Cross-Sectional Technologies · mapped topic

• F01D17/20 Primary

  Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted (sensing elements alone F01D17/02; final actuators alone F01D17/10) · CPC title

• F02B37/183

  Arrangements of bypass valves or actuators therefor · CPC title

• F02C6/12

  Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure · CPC title

• F01D25/24 Primary

  Casings (modified for heating or cooling F01D25/14); Casing parts, e.g. diaphragms, casing fastenings (casings for rotary machines or engines in general F16M {; special arrangements in stators dealing with breaking-off of part of rotor F01D21/045}) · CPC title