Actuation device, in particular electronic actuator

Patent metadata

Field	Value
Publication number	US-9822695-B2
Application number	US-201314425668-A
Country	US
Kind code	B2
Filing date	Sep 11, 2013
Priority date	Sep 19, 2012
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

An actuation device ( 1 ), in particular electronic actuator, having a housing ( 2 ); and having an actuation shank which has a first shank portion guided in the housing ( 2 ), and which has a second shank portion ( 3 ) projecting out of the housing ( 2 ), wherein a shielding cap ( 4 ) is provided which is fastened to the housing ( 2 ) and which surrounds the second shank portion ( 3 ) with the exception of a fastening region ( 5 ).

First claim

The invention claimed is:

1. An electronic actuation device ( 1 ) having
a housing ( 2 ); and
an actuation shank, which has a first shank portion guided in the housing ( 2 ) and a second shank portion ( 3 ) projecting out of the housing ( 2 ),
wherein
a shielding cap ( 4 ) is provided which is fastened to the housing ( 2 ) and which at least partially surrounds the second shank portion ( 3 ) with the exception of a fastening region ( 5 ),
wherein the shielding cap ( 4 ) has cooling and water outlet bores ( 8 , 9 , 10 , 11 ).

2. The electronic actuation device as claimed in claim 1 , wherein the shielding cap ( 4 ) has two interconnected first and second cylinder portions ( 6 , 7 ) with different diameters (D 1 , D 2 ).

3. The electronic actuation device as claimed in claim 2 , wherein a flanged portion ( 13 ) is arranged around an end-side opening ( 14 ) of the second cylinder portion ( 7 ).

4. The electronic actuation device as claimed in claim 3 , wherein the flanged portion ( 13 ) is provided with openings ( 15 , 16 , 17 ).

5. The electronic actuation device as claimed in claim 1 , wherein the shielding cap ( 4 ) is screwed to the housing ( 2 ).

6. The electronic actuation device as claimed in claim 1 , wherein the fastening portion ( 5 ) is connected via a redirecting device ( 20 ) to a coupling rod ( 26 ).

7. The electronic actuation device as claimed in claim 1 , wherein the actuation shank is produced from plastic or metal.

8. An electronic actuation device ( 1 ) having
a housing ( 2 ); and
an actuation shank, which has a first shank portion guided in the housing ( 2 ) and a second shank portion ( 3 ) projecting out of the housing ( 2 ),
wherein
a shielding cap ( 4 ) is provided which is fastened to the housing ( 2 ) and which partially surrounds the second shank portion ( 3 ) with the exception of a fastening region ( 5 ),
the shielding cap ( 4 ) has two interconnected first and second cylinder portions ( 6 , 7 ) with different diameters (D 1 , D 2 ), and
a twist prevention means ( 12 ) is formed as an opening in the second cylinder portion ( 7 ).

9. The electronic actuation device as claimed in claim 8 , wherein the shielding cap ( 4 ) has cooling and water outlet bores ( 8 , 9 , 10 , 11 ).

10. An exhaust-gas turbocharger ( 30 ) having an electronic actuation device ( 1 ) which has a housing ( 2 ) and an actuation shank which has a first shank portion guided in the housing ( 2 ) and a second shank portion ( 3 ) projecting out of the housing ( 2 ), wherein a shielding cap ( 4 ) is provided which is fastened to the housing ( 2 ) and which at least partially surrounds the second shank portion ( 3 ) with the exception of a fastening region ( 5 ),
wherein the shielding cap ( 4 ) has cooling and water outlet bores ( 8 , 9 , 10 , 11 ).

11. The exhaust-gas turbocharger as claimed in claim 10 , wherein the shielding cap ( 4 ) has two interconnected first and second cylinder portions ( 6 , 7 ) with different diameters (D 1 , D 2 ).

12. The exhaust-gas turbocharger as claimed in claim 11 , wherein a flanged portion ( 13 ) is arranged around an end-side opening ( 14 ) of the second cylinder portion ( 7 ).

13. The exhaust-gas turbocharger as claimed in claim 12 , wherein the flanged portion ( 13 ) is provided with openings ( 15 , 16 , 17 ).

14. The exhaust-gas turbocharger as claimed in claim 10 , wherein the shielding cap ( 4 ) is screwed to the housing ( 2 ).

15. The exhaust-gas turbocharger as claimed in claim 10 , wherein the fastening portion ( 5 ) is connected via a redirecting device ( 20 ) to a coupling rod ( 26 ).

16. The exhaust-gas turbocharger as claimed in claim 10 , wherein the actuation shank is produced from plastic or metal.

17. An exhaust-gas turbocharger ( 30 ) having an electronic actuation device ( 1 ) which has a housing ( 2 ) and an actuation shank which has a first shank portion guided in the housing ( 2 ) and a second shank portion ( 3 ) projecting out of the housing ( 2 ), wherein a shielding cap ( 4 ) is provided which is fastened to the housing ( 2 ) and which partially surrounds the second shank portion ( 3 ) with the exception of a fastening region ( 5 ),
wherein the shielding cap ( 4 ) has two interconnected first and second cylinder portions ( 6 , 7 ) with different diameters (D 1 , D 2 ), and
wherein a twist prevention means ( 12 ) is formed as an opening in the second cylinder portion ( 7 ).

18. The exhaust-gas turbocharger as claimed in claim 17 , wherein the shielding cap ( 4 ) has cooling and water outlet bores ( 8 , 9 , 10 , 11 ).

Assignees

• Borgwarner Inc

Inventors

• Kraemer Jochen
• Fetzer Hans-Joerg

Classifications

• F04D27/009

  by bleeding, by passing or recycling fluid · CPC title

• H01F7/129

  of armatures · CPC title

• F02B37/186 Primary

  Arrangements of actuators or linkage for bypass valves · CPC title

• F04D17/122

  the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors · CPC title

• Y02T10/144

  Cross-Sectional Technologies · mapped topic