Control arrangement of an exhaust-gas turbocharger

Patent metadata

Field	Value
Publication number	US-9915196-B2
Application number	US-201314650689-A
Country	US
Kind code	B2
Filing date	Nov 22, 2013
Priority date	Dec 14, 2012
Publication date	Mar 13, 2018
Grant date	Mar 13, 2018

Abstract

A control arrangement ( 1 ) of an exhaust-gas turbocharger ( 2 ), having a bearing bushing ( 3 ); having a control shaft ( 4 ) which is connected at a first end ( 5 ) to a connecting lever ( 6 ) and which is guided in the bearing bushing ( 3 ); and having a connecting piece ( 7 ) which is arranged on the connecting lever ( 6 ). The connecting piece ( 7 ) is arranged on a lever surface ( 8 ), which faces toward the bearing bushing ( 3 ), of the connecting lever ( 6 ).

First claim

The invention claimed is:

1. A control arrangement ( 1 ) for a wastegate of an exhaust-gas turbocharger ( 2 ), having
a bearing bushing ( 3 ) having a cylindrical circumferential surface with an annular stop ( 11 ) on its cylindrical circumferential surface, a bushing inboard end and a bushing outboard end;
a connecting lever ( 6 );
a control shaft ( 4 ) which is connected at a first end ( 5 ) to the connecting lever ( 6 ) and at a second end to a wastegate and which is guided in the bearing bushing ( 3 ); and
a connecting piece ( 7 ) for transmitting actuation forces to a connecting lever ( 6 ) is arranged on the connecting lever ( 6 ),
wherein the bearing bushing ( 3 ) is seated from its bushing inboard end to its annular stop ( 11 ) in a wall ( 19 ) of the exhaust-gas turbocharger ( 2 ) and projects a distance (A) from its annular stop ( 11 ) to its bushing outboard end outside of the turbine housing, and
the connecting piece ( 7 ) is arranged on a lever surface ( 8 ) which faces toward the housing wall ( 19 ) such that actuation forces are transmitted from the connecting piece ( 7 ) to the bearing bushing ( 3 ) in the region of the bearing bushing ( 3 ) between the annular stop ( 11 ) and the outboard end.

2. The control arrangement as claimed in claim 1 , wherein a spacer disk ( 12 ) is provided laid into a face surface ( 13 ) of the bearing bushing ( 3 ).

3. The control arrangement as claimed in claim 1 , wherein a control device ( 14 ) is arranged on a second end ( 10 ) of the control shaft ( 4 ).

4. The control arrangement as claimed in claim 3 , wherein the control device ( 14 ) has a wastegate flap ( 15 ) which is mounted on a flap lever ( 16 ) which is fixed to the second end ( 10 ) of the control shaft ( 4 ).

5. A turbine housing ( 17 ) of an exhaust-gas turbocharger ( 2 ), having
a wastegate bypass opening ( 18 ); and
a control device ( 14 ) which is operatively connected to a control arrangement ( 1 ) which has the following components:
a bearing bushing ( 3 ) having a cylindrical circumferential surface with an annular stop ( 11 ) on its cylindrical circumferential surface, a bushing inboard end and a bushing outboard end;
a connecting lever ( 6 );
a control shaft ( 4 ) which is connected at a first end ( 5 ) to the connecting lever ( 6 ) and at a second end to a wastegate associated with the wastegate bypass opening ( 18 ) and which control shaft is guided in the bearing bushing ( 3 ); and
a connecting piece ( 7 ) for transmitting actuation forces to a connecting lever ( 6 ) is fixed on the connecting lever ( 6 ),
wherein the bearing bushing ( 3 ) is seated from its bushing inboard end to its annular stop ( 11 ) in a wall ( 19 ) of the exhaust-gas turbocharger ( 2 ) and projects a distance (A) from its annular stop ( 11 ) to its bushing outboard end outside of the turbine housing, and
the connecting piece ( 7 ) is fixed on a lever surface ( 8 ) which faces toward the housing wall ( 19 ) such that actuation forces are transmitted from the connecting piece ( 7 ) to the bearing bushing ( 3 ) in the region of the bearing bushing ( 3 ) between the annular stop ( 11 ) and the outboard end.

6. The turbine housing as claimed in claim 5 , wherein a spacer disk ( 12 ) is provided laid into a face surface ( 13 ) of the bearing bushing ( 3 ).

7. The turbine housing as claimed in claim 5 , wherein a control device ( 14 ) is arranged on a second end ( 10 ) of the control shaft ( 4 ).

8. The turbine housing as claimed in claim 7 , wherein the control device ( 14 ) has a wastegate flap ( 15 ) which is mounted on a flap lever ( 16 ) which is fixed to the second end ( 10 ) of the control shaft ( 4 ).

Assignees

• Borgwarner Inc

Inventors

• Keller Peter

Classifications

• Y02T10/144

  Cross-Sectional Technologies · mapped topic

• F02B37/186 Primary

  Arrangements of actuators or linkage for bypass valves · CPC title

• F05D2220/40

  in turbochargers · CPC title

• F01D17/12

  arranged in stator parts · CPC title

• Y02T10/12

  Improving ICE efficiencies · CPC title