Exhaust-gas turbocharger

Patent metadata

Field	Value
Publication number	US-9664064-B2
Application number	US-201214235545-A
Country	US
Kind code	B2
Filing date	Jul 24, 2012
Priority date	Aug 8, 2011
Publication date	May 30, 2017
Grant date	May 30, 2017

Abstract

An exhaust-gas turbocharger ( 1 ) having a turbine ( 2 ) which is provided with a variable turbine geometry ( 18 ) and/or a wastegate; and having an actuator ( 11 ) which is connected to the variable turbine geometry ( 18 ) and/or the wastegate via a coupling rod ( 14 ). The coupling rod ( 14 ) is connected at its end regions ( 21, 22 ) at one side to a pin of the actuator ( 11 ) by means of a lock washer ( 25 ) and at the other side to a pin ( 33 ) of an adjusting shaft ( 5 ) of the variable turbine geometry ( 18 ) and/or of the wastegate by means of a lock washer ( 26 ). The lock washers ( 25, 26 ) are integrated in the coupling rod ( 14 ).

First claim

The invention claimed is:

1. An exhaust-gas turbocharger ( 1 ) having
a turbine ( 2 ) which is provided with a variable turbine geometry ( 18 ) and/or a wastegate; and
an actuator ( 11 ) which is connected to the variable turbine geometry ( 18 ) and/or the wastegate via a coupling rod ( 14 ),
wherein the coupling rod ( 14 ) is connected at its end regions ( 21 , 22 ) at one side to a pin of the actuator ( 11 ) by means of internal-tooth, quick-lock, spring retention lock washer ( 25 ) and at the other side to a pin ( 33 ) of an adjusting shaft ( 5 ) of the variable turbine geometry ( 18 ) and/or of the wastegate by means of internal-tooth, quick-lock, spring retention lock washer ( 26 ), and wherein the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ) are integrated in the coupling rod ( 14 ).

2. The exhaust-gas turbocharger as claimed in claim 1 , wherein the material of the coupling rod ( 14 ) is plastic.

3. The exhaust-gas turbocharger as claimed in claim 2 , wherein the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ) are cast at the edges into the plastic material of the coupling rod ( 14 ) by encapsulation.

4. The exhaust-gas turbocharger as claimed in claim 1 , wherein the material of the coupling rod ( 14 ) is metal.

5. The exhaust-gas turbocharger as claimed in claim 4 , wherein the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ) are caulked with the coupling rod ( 14 ).

6. The exhaust-gas turbocharger as claimed in claim 4 , wherein the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ) are welded to the coupling rod ( 14 ).

7. The exhaust-gas turbocharger as claimed in claim 1 , wherein the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ) are circular.

8. The exhaust-gas turbocharger as claimed in claim 1 , wherein the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ) are of domed form.

9. The exhaust-gas turbocharger as claimed in claim 1 , wherein the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ) each have a central through opening ( 27 ).

10. The exhaust-gas turbocharger as claimed in claim 9 , wherein four slots ( 28 to 31 ) extend from the through opening ( 27 ) in the direction of an outer edge ( 32 ) of the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ).

11. The exhaust-gas turbocharger as claimed in claim 2 , wherein the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ) are cast at the edges into the plastic material of the coupling rod ( 14 ) by encapsulation.

12. The exhaust-gas turbocharger as claimed in claim 1 , wherein the material of the coupling rod ( 14 ) is metal.

13. The exhaust-gas turbocharger as claimed in claim 4 , wherein the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ) are caulked with the coupling rod ( 14 ).

14. The exhaust-gas turbocharger as claimed in claim 4 , wherein the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ) are welded to the coupling rod ( 14 ).

15. A coupling rod ( 14 ) of an exhaust-gas turbocharger ( 1 ), having two end regions ( 21 , 22 ) which are spaced apart from one another and which are connected to one another via an elongate connecting region ( 23 ′), wherein an internal-tooth, quick-lock, spring retention lock washer ( 25 , 26 ) is integrated in each end region ( 21 , 22 ).

16. The coupling rod as claimed in claim 15 , wherein the material of the coupling rod ( 14 ) is plastic.

17. The exhaust-gas turbocharger as claimed in claim 15 , wherein the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ) are circular.

18. The exhaust-gas turbocharger as claimed in claim 15 , wherein the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ) are of domed form.

19. The exhaust-gas turbocharger as claimed in claim 15 , wherein the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ) each have a central through opening ( 27 ).

20. The exhaust-gas turbocharger as claimed in claim 19 , wherein four slots ( 28 to 31 ) extend from the through opening ( 27 ) in the direction of an outer edge ( 32 ) of the internal-tooth, quick-lock, spring retention lock washers ( 25 , 26 ).

Assignees

• Stilgenbauer Michael
• Kanoffsky Nico
• Borgwarner Inc

Inventors

• Stilgenbauer Michael
• Kanoffsky Nico

Classifications

• Y02T10/12

  Improving ICE efficiencies · CPC title

• Y02T10/144

  Cross-Sectional Technologies · mapped topic

• F02B37/24

  by using pumps or turbines with adjustable guide vanes · CPC title

• F02B37/183 Primary

  Arrangements of bypass valves or actuators therefor · CPC title

• F01D17/10

  Final actuators (valves in general F16K {; blades with variable camber F01D5/148}) · CPC title