Exhaust-gas turbocharger

Patent metadata

Field	Value
Publication number	US-9494045-B2
Application number	US-201214235548-A
Country	US
Kind code	B2
Filing date	Aug 2, 2012
Priority date	Aug 8, 2011
Publication date	Nov 15, 2016
Grant date	Nov 15, 2016

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; 14′; 14 ″). The coupling rod ( 14; 14 ′) is connected at its end regions ( 21, 22 ) at one side to the actuator ( 11 ) and at the other side to a pin ( 19 ) of an adjusting shaft arrangement ( 23; 26 ) of the variable turbine geometry ( 18 ) and/or of the wastegate. The pin ( 19 ) of the adjusting shaft arrangement ( 23; 26 ) is in the form of a bayonet pin, and that end region ( 22 ) of the coupling rod ( 14 ) which interacts with the pin ( 19 ) is in the form of a bayonet receptacle ( 24; 27 ) which is matched to the bayonet pin ( 19 ).

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 ; 14 ′; 14 ″), wherein the coupling rod ( 14 ; 14 ′) is connected at its end regions ( 21 , 22 ) at one side to the actuator ( 11 ) and at the other side to a pin ( 19 ) of an adjusting shaft arrangement ( 23 ; 26 ) of the variable turbine geometry ( 18 ) and/or of the wastegate,
wherein the pin ( 19 ) of the adjusting shaft arrangement ( 23 ; 26 ) is in the form of a bayonet pin, and
wherein end region ( 22 ) of the coupling rod ( 14 ) which interacts with the pin ( 19 ) is in the form of a bayonet receptacle ( 24 ; 27 ) which is matched to the bayonet pin ( 19 ).

2. The exhaust-gas turbocharger as claimed in claim 1 , wherein the actuator ( 11 ) is provided with a bayonet pin ( 20 ′), and
wherein the coupling rod ( 14 ; 14 ′) is provided, at its two end regions ( 21 , 22 ), with in each case one bayonet receptacle ( 24 , 25 ), which bayonet receptacles are adapted in terms of shape and dimensions to the bayonet pins ( 19 , 20 ) of the adjusting shaft arrangement ( 23 ) and of the actuator ( 11 ).

3. The exhaust-gas turbocharger as claimed in claim 1 , wherein the coupling rod ( 14 ″) has a guide piece ( 28 ), on the end region ( 29 ) of which the bayonet receptacle ( 27 ) is arranged, and in that the other end region ( 30 ) of the guide piece ( 28 ) is connected to an actuator regulating rod ( 31 ).

4. A coupling rod ( 14 ; 14 ′; 14 ″) of an exhaust-gas turbocharger ( 1 ), wherein at least one end region ( 29 ) is equipped with a bayonet receptacle ( 27 ).

5. The coupling rod as claimed in claim 4 , wherein two end regions ( 21 , 22 ) are provided which are each equipped with an associated bayonet receptacle ( 24 , 25 ).

6. The coupling rod as claimed in claim 4 , wherein a guide piece ( 28 ) is provided, on the end region ( 29 ) of which the bayonet receptacle ( 27 ) is arranged and on the other end region ( 30 ) of which an actuator regulating rod ( 31 ) is arranged.

Assignees

• Ramb Thomas
• Kanoffsky Nico
• Borgwarner Inc

Inventors

• Ramb Thomas
• Kanoffsky Nico

Classifications

• F02B37/24

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

• F02B37/186

  Arrangements of actuators or linkage for bypass valves · CPC title

• Y10T403/7007

  Bayonet joint · CPC title

• F01D17/12 Primary

  arranged in stator parts · CPC title

• F05D2260/56

  using cams or eccentrics · CPC title