Turbine housing for a multi-flow turbine

Patent metadata

Field	Value
Publication number	US-10823048-B2
Application number	US-201916288883-A
Country	US
Kind code	B2
Filing date	Feb 28, 2019
Priority date	Feb 28, 2019
Publication date	Nov 3, 2020
Grant date	Nov 3, 2020

Abstract

The invention relates to a turbine housing for a multi-flow turbine with a first spiral and a second spiral. The first spiral comprises a first side conduit and the second spiral comprises a second conduit, wherein the first side conduit and the second side conduit are fluidically connected to one another in a connection area.

First claim

The invention claimed is:

1. A turbine housing ( 100 ) for a multi-flow turbine ( 10 ) with
a first spiral ( 110 );
a second spiral ( 120 );
wherein the first spiral ( 110 ) has a first side conduit ( 112 ) and the second spiral ( 120 ) has a second side conduit ( 122 ), wherein the first side conduit ( 112 ) and the second side conduit ( 122 ) are fluidically connected to one another in a connection area ( 130 ) and
wherein the first side conduit ( 112 ) exits in a direction of flow in front of the connection area ( 130 ) out of the first spiral ( 110 ) and reenters into the first spiral ( 110 ) after the connection area ( 130 ); and
the second side conduit ( 122 ) exits in a direction of flow in front of the connection area ( 130 ) out of the second spiral ( 120 ) and reenters back into the second spiral ( 120 ) after the connection area ( 130 ).

2. The turbine housing according to claim 1 , wherein the first side conduit ( 112 ), the second side conduit ( 122 ) and the connection area ( 130 ) form an X-shaped conduit area together in the turbine housing ( 10 ).

3. The turbine housing according to claim 1 , wherein the first side conduit ( 112 ) and/or the second side conduit ( 122 ) are separated at least partially by a housing part of the turbine housing ( 100 ) from the first spiral ( 110 ) and/or from the second spiral ( 120 ).

4. The turbine housing according to claim 1 , wherein a valve area ( 140 ) for receiving a valve closing body ( 312 ) is formed in the connection area ( 130 ).

5. The turbine housing according to claim 1 , wherein a bypass opening ( 150 ) is arranged in the connection area ( 130 ).

6. A multi-flow turbine ( 10 ) for an exhaust gas turbocharger with
a turbine wheel ( 200 ); and
a bypass arrangement ( 300 );
having a turbine housing ( 100 ) according to claim 1 .

7. The multi-flow turbine ( 10 ) according to claim 6 , wherein the bypass arrangement ( 300 ) comprises a valve ( 310 ).

8. The multi-flow turbine ( 10 ) according to claim 7 , wherein the valve ( 310 ) comprises a valve closing body ( 312 ) and a spindle ( 314 ); and
wherein a lever arm ( 316 ) is arranged between the spindle ( 314 ) and the valve closing body ( 312 ).

9. The multi-flow turbine ( 10 ) according to claim 8 , wherein the valve closing body ( 312 ) extends in a closed position of the valve ( 310 ) through a bypass opening ( 150 ) into the connection area ( 130 ) of the turbine housing ( 100 ) and interacts with a valve area ( 140 ) in order to suppress an overflow of exhaust gases from the first spiral ( 110 ) into the second spiral ( 120 ).

10. The multi-flow turbine according to claim 8 , wherein the valve closing body ( 312 ) has an annular sealing surface ( 312 a ) which interacts, in a closed position of the valve ( 320 ), with a valve seat ( 160 ) of the turbine housing ( 100 ) in order to close the bypass opening ( 150 ).

11. The multi-flow turbine according to claim 8 , wherein the valve closing body ( 312 ) is constructed to be partially hollow.

12. The multi-flow turbine according to claim 8 , wherein the valve closing body ( 312 ) comprises a projection ( 318 ) on a side facing away from the connection area ( 130 ).

13. The multi-flow turbine ( 10 ) according to claim 8 , wherein the lever arm ( 316 ) is welded to the valve closing body ( 312 ).

14. The multi-flow turbine ( 10 ) according to claim 7 , wherein the valve ( 310 ) is a flap valve.

15. The multi-flow turbine according to claim 7 , wherein the valve ( 310 ) can be continuously adjusted from a closed position to an open position.

16. A multi-flow turbocharger with
a compressor; and
a turbine according to claim 6 .

Assignees

• Borgwarner Inc

Inventors

• Hottenbach Peter
• Scheel Henning
• Wickert Rainer

Classifications

• Y02T10/12

  Improving ICE efficiencies · CPC title

• F02B37/183

  Arrangements of bypass valves or actuators therefor · CPC title

• F05D2220/40

  in turbochargers · CPC title

• F02B37/186

  Arrangements of actuators or linkage for bypass valves · CPC title

• F04D29/403

  especially adapted for elastic fluid pumps · CPC title