Valve assembly for multi-channel turbine

Patent metadata

Field	Value
Publication number	US-11624315-B2
Application number	US-202017106252-A
Country	US
Kind code	B2
Filing date	Nov 30, 2020
Priority date	Mar 27, 2018
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

The disclosure relates to a valve assembly 10 for controlling a volute connecting opening 324 of a multi-channel turbine 500 . The valve assembly 10 comprises a housing portion 300 , a valve body 100 and an internal lever 200 . The housing portion 300 defines a first volute channel 312 , a second volute channel 314 and a volute connecting region 320 . The housing portion 300 further comprises a cavity 340 . The cavity 340 is separated from the volutes 312, 314 and can be accessed from outside the housing portion 300 via a housing opening 342 which extends from outside the housing portion 300 into the cavity 340 . The volute connection region 320 is located between the first volute channel 312 and the second volute channel 314 and defines a volute connecting opening 324 . The valve body 100 is inserted in the cavity 340 of the housing portion 300 and comprises at least one fin 120 . The internal lever 200 is coupled with the valve body 100 and configured to pivotably move the valve body 100 between a first position and a second position. In the first position of the valve body 100 , the fin 120 blocks the volute connecting opening 324.

First claim

The invention claimed is:

1. A valve assembly ( 10 ) for controlling a volute connecting opening ( 324 ) of a multi-channel turbine ( 500 ) comprising:
a housing portion ( 300 ) with a first volute channel ( 312 ), a second volute channel ( 314 ) and a volute connecting region ( 320 ) between the first volute channel ( 312 ) and the second volute channel ( 314 ) defining the volute connecting opening ( 324 ),
a valve body ( 100 ) inserted in a cavity ( 340 ) of the housing portion ( 300 ) and comprising at least one fin ( 120 ), wherein the at least one fin ( 120 ) extends from the valve body ( 100 ) in a first direction, and
an internal lever ( 200 ) coupled with the valve body ( 100 ) and configured to pivotably move the valve body ( 100 ) between a first position and a second position,
wherein in the first position of the valve body ( 100 ) the at least one fin ( 120 ) blocks the volute connecting opening ( 324 ) and, wherein in the second position of the valve body ( 100 ) the at least one fin ( 120 ) clears the volute connecting opening ( 324 ); and
wherein the at least one fin ( 120 ) is configured to withdraw through a sidewall of the housing portion ( 300 ) to reach the second position and is configured to extend through the sidewall to reach the first position,
wherein the housing portion ( 300 ) comprises a divider wall ( 316 ) separating the first volute channel ( 312 ) and the second volute channel ( 314 ), wherein the volute connecting opening ( 324 ) is arranged in the divider wall ( 316 ) defining a fin seat ( 322 ) and wherein the at least one fin ( 120 ) interacts with the fin seat ( 322 ) to block the volute connecting opening ( 324 ) in the first position of the valve body ( 100 ),
wherein the at least one fin ( 120 ) has a shape with a thickness ( 122 ), a height ( 124 ) and a length ( 126 ), wherein a contour ( 121 ) of the fin ( 120 ) is defined by at least a first radius ( 128 a ) and a second radius ( 128 b ) lying in a plane of the height ( 124 ) and the length ( 126 ), and wherein a contour ( 321 ) of the fin seat ( 322 ) is defined by at least another first radius ( 322 a ) and another second radius ( 322 b ),
wherein the first radii ( 128 a , 322 a ) define respective portions of the contours ( 121 , 321 ) opposite of a pivot axis ( 230 ) of the internal lever ( 200 ) with respect to the volute connecting opening ( 324 ), and wherein the centers of the first radii ( 128 a , 322 a ) coincide with the pivot axis ( 230 ).

2. The valve assembly ( 10 ) of claim 1 , wherein the valve body ( 100 ) further comprises a plate ( 110 ) and wherein the at least one fin ( 120 ) protrudes from the plate ( 110 ) in the first direction.

3. The valve assembly ( 10 ) of claim 1 , wherein the internal lever ( 200 ) comprises a valve portion ( 210 ) and a spindle portion ( 220 ).

4. The valve assembly ( 10 ) of claim 3 , further comprising a lever assembly ( 400 ) with a spindle ( 410 ), wherein the internal lever ( 200 ) is coupled with the spindle ( 410 ) inside the cavity ( 340 ) via the spindle portion ( 220 ).

5. The valve assembly ( 10 ) of claim 4 , wherein the spindle portion ( 220 ) comprises a spindle hole ( 222 ) into which the spindle ( 410 ) is inserted to be coupled with the internal lever ( 200 ), or wherein the spindle portion ( 220 ) comprises an opening ( 224 ) extending into a spindle hole ( 222 ) for weldingly coupling the spindle ( 410 ) to the internal lever ( 200 ).

6. The valve assembly ( 10 ) of claim 3 , wherein the internal lever ( 200 ) is coupled with the valve body ( 100 ) via the valve portion ( 210 ).

7. The valve assembly ( 10 ) of claim 1 , wherein the housing portion ( 300 ) comprises a volute opening region ( 330 ) with a valve opening ( 332 ) fluidically coupling the cavity ( 340 ) and the volute connecting region ( 320 ) and enabling movement of the valve body ( 100 ) between the first position and the second position.

8. The valve assembly ( 10 ) of claim 1 , further comprising a cover ( 350 ) closing off a housing opening ( 342 ) which extends from outside the housing portion ( 300 ) into the cavity ( 340 ).

9. The valve assembly ( 10 ) of claim 8 , wherein the valve assembly ( 10 ) further comprises a gasket ( 360 ) sealing the housing opening ( 342 ) between the housing portion ( 300 ) and the cover ( 350 ), or
wherein the valve assembly ( 10 ) further comprises the gasket ( 360 ) sealing the housing opening ( 342 ) between the housing portion ( 300 ) and the cover ( 350 ), wherein the gasket ( 360 ) is arranged in a sealing recess ( 362 ) of the housing portion ( 300 ).

10. The valve assembly ( 10 ) of claim 1 , wherein the housing portion ( 300 ) further comprises a bypass opening ( 346 ) which is arranged in the cavity ( 340 ) and which is fluidically coupled with a bypass channel ( 347 ).

11. The valve assembly ( 10 ) of claim 1 , further comprising a sealing ( 160 ) formed between the at least one fin ( 120 ) and the fin seat ( 322 ).

12. The valve assembly ( 10 ) of claim 1 , wherein the at least one fin comprises a first fin ( 120 a ) and a second fin ( 120 b ) arranged spaced apart by at least a thickness ( 316 a ) of the divider wall ( 316 ) on a plate ( 110 ), such that at least in the first position of the valve body ( 100 ) the first fin and the second fin ( 120 b ) are arranged on a respective flank side ( 318 a , 318 b ) of the divider wall ( 316 ) adjacent to the fin seat ( 322 ).

13. The valve assembly ( 10 ) of claim 12 , wherein the housing portion ( 300 ) comprises a volute opening region ( 330 ) with a valve opening ( 332 ) fluidically coupling the cavity ( 340 ) and the volute connecting region ( 320 ) and enabling movement of the valve body ( 100 ) between the first position and the second position and wherein the valve opening ( 332 ) has an H-shape with a first land ( 332 a ) and a second land ( 332 b ), the first land ( 332 a ) being longer than the second land ( 332 b ) and wherein the lands ( 332 a , 332 b ) coincide with the divider wall ( 316 ), and wherein the first land ( 332 a) is arranged opposite a pivot axis ( 230 ) with respect to the valve opening ( 332 ) and the second land ( 332 b ) is arranged on a same side of the pivot axis ( 230 ) with respect to the valve opening ( 332 ).

14. The multi-channel turbine ( 500 ) for a charging apparatus comprising:
a turbine housing ( 510 ) defining a first volute ( 512 ) and a second volute ( 514 ) being connected to an exhaust manifold ( 600 ) of an engine ( 30 ),
a turbine wheel ( 520 ), and
the valve assembly ( 10 ) of claim 1 .

15. The multi-channel turbine ( 500 ) of claim 14 , wherein the valve assembly ( 10 ) is a modular part or wherein the housing portion ( 300 ) is integrally formed with the exhaust manifold ( 600 ) or the turbine housing ( 510 ).

16. The charging apparatus ( 20 ) comprising:
a compressor ( 700 ), and
the turbine ( 500 ) of claim 14 which is rotationally coupled to the compressor ( 700 ).

17. The charging apparatus ( 20 ) of claim 16 , wherein the housing portion ( 300 ) further comprises a bypass opening ( 346 ) which is arranged in the cavity ( 340 ) and which is fluidically coupled with a bypass channel ( 347 ) and further comprising a catalyst ( 800 ) which is arranged downstream of the turbine ( 500 ) and fluidically coupled with the bypass channel ( 347 ).

18. The multi-channel turbine ( 500 ) of claim 14 , wherein the valve assembly ( 10 ) is arranged in the exhaust manifold ( 600 ) or in the turbine housing ( 510 ).

19. A method

Assignees

• Borgwarner Inc

Inventors

• Walkingshaw Jason Robert
• Cempirek Ondrej
• Injac Ivan

Classifications

• Y02T10/12

  Improving ICE efficiencies · CPC title

• F01D25/24

  Casings (modified for heating or cooling F01D25/14); Casing parts, e.g. diaphragms, casing fastenings (casings for rotary machines or engines in general F16M {; special arrangements in stators dealing with breaking-off of part of rotor F01D21/045}) · CPC title

• F02B37/183

  Arrangements of bypass valves or actuators therefor · CPC title

• F02B37/186 Primary

  Arrangements of actuators or linkage for bypass valves · CPC title

• F05D2220/40

  in turbochargers · CPC title