Multiple nozzle rings and a valve for a turbocharger

• US 20070209361A1
• Filed: 03/08/2006
• Published: 09/13/2007
• Est. Priority Date: 03/08/2006
• Status: Active Grant

• Current Assignee: Melvin Pedersen, Steven Benson
• Original Assignee: Melvin Pedersen, Steven Benson
• Inventors: Benson, Steven, Pedersen, Melvin
• Granted Patent: US 7,428,814 B2
• Time in Patent Office: Days
• US Class Current: 60/602
• CPC Class Codes: F01D 17/141 by means of shiftable members or valves obturating part of the flow path
• CPC Class Codes: F01D 9/026 Scrolls for radial machines or engines
• CPC Class Codes: F02B 37/025 Multiple scrolls or multiple gas passages guiding the gas to the pump drive
• CPC Class Codes: F02B 37/22 by varying cross-section of exhaust passages or air passages , e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits F02B37/24 takes precedence
• CPC Class Codes: F02B 37/225 air passages
• CPC Class Codes: F02B 37/24 by using pumps or turbines with adjustable guide vanes
• CPC Class Codes: F05D 2220/40 in turbochargers
• CPC Class Codes: F05D 2240/12 Fluid guiding means, e.g. vanes
• CPC Class Codes: F05D 2240/40 Use of a multiplicity of similar components
• CPC Class Codes: F05D 2250/70 Shape
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies
• CPC Class Codes: Y10S 415/912 Interchangeable parts to vary pumping capacity or size of pump

Abstract

A turbocharger turbine housing with at least two volutes utilizing multiple nozzle rings to optimize the turbocharger'"'"'s proficiency per application, and a valve to control the exhaust flow to selected volutes in the turbine housing.

Claims

1. An exhaust-gas turbine of a turbocharger comprising:

a turbine housing receiving exhaust gases from an internal combustion engine by means of one or more exhaust conduits;

one or more exhaust gas inlets in the housing being connected to the one-or-more exhaust conduits;

the exhaust gas inlets expelling exhaust gases into at least two volute gas chambers which are encompassed around at least two nozzle rings;

the nozzle rings, each having a polar array of vanes mounted in a fixed position on a web or ring, receive exhaust gases from the at least two volute gas chambers and are directing the exhaust gases around the periphery of one or more turbine wheels causing the rotation of the one-or-more turbine wheels.

2. The exhaust gas turbine of claim 1, wherein a valve is operatively positioned in the exhaust gas conduit to control or proportion the volumetric flow of exhaust gases into the at least two volute gas chambers.

3. The valve of claim 2, wherein the valve integrally formed into the turbine housing.

4. The nozzle rings of claim 1, wherein the nozzle ring vanes are mounted on both sides of the same web.

5. The nozzle rings of claim 1, wherein one or more web(s) is contoured to promote smooth flow characteristics of exhaust gases from the volute gas chambers.

6. The nozzle rings of claim 1, wherein one of more web(s) is contoured to control the opening of the annular nozzle.

7. The nozzle rings of claim 1, wherein the vanes have contoured leading edges.

8. The nozzle rings of claim 1, wherein the vanes have contoured trailing edges.

9. A valve operatively positioned in an exhaust conduit, between an internal combustion engine and a turbocharger turbine housing enclosing at least two volute gas chambers, to control or proportion the exhaust gases received by the volute gas chambers comprising:

a gate pivotally disposed in a valve housing;

the gate having one surface that forms a moveable wall and is part of the exhaust conduit for directing and converging the exhaust gases into the at-least-two volutes, and a second surface to substantially close off or to open ports leading to the gas volute chambers, with the movement of the gate.

10. The valve in claim 9, wherein the gate forms an adjustable tapering conduit.

11. The valve in claim 9, wherein the gate has an infinitely variable number of positions to control or proportion the exhaust gases into the at-least-two volutes.

12. The valve in claim 9, wherein the gate forms redirections of the exhaust gases that are less than sixty degrees (60°

) throughout the entire operating range of the gate.

13. The valve in claim 9, wherein the valve creates a conduit that constantly maintains or reduces the cross-sectional area of the conduit during lower exhaust gas volumes.

14. An exhaust-gas turbine of a turbocharger comprising:

a turbine housing receiving exhaust gases from an internal combustion engine by means of one or more exhaust conduits;

one or more exhaust gas inlets in the housing being connected to the one-or-more exhaust conduits;

the exhaust gas inlets expelling exhaust gases into at least two volute gas chambers which are encompassed around one nozzle ring;

the nozzle ring having a polar array of vanes mounted in a fixed position on a web or ring, receive exhaust gases from the at-least-two volute gas chambers, the vanes of the nozzle ring directing the exhaust gases around the periphery of one or more turbine wheels causing the rotation of the one-or-more turbine wheels.

15. The turbocharger turbine of claim 14, wherein the nozzle ring is placed in the annular nozzle of one or more volute gas chambers, with at least one volute gas chamber forming it'"'"'s own annular nozzle without a nozzle ring fitted into the annular nozzle.

16. The exhaust gas turbine of claim 14, wherein a valve is operatively positioned in the exhaust gas conduit to control or proportion the volumetric flow of exhaust gases into the at least two volute gas chambers.

17. The valve of claim 16, wherein the valve is integrally formed into the turbine housing.

18. The nozzle rings of claim 14, wherein one or more web(s) is contoured for promote flow characteristics of exhaust gases from the volute gas chambers.

19. The nozzle rings of claim 14, wherein one of more web(s) is contoured to control the opening of the annular nozzle.

20. The nozzle rings of claim 14, wherein the vanes have contoured leading edges.

21. The nozzle rings of claim 14, wherein the vanes have contoured trailing edges.