VTG lever positive displacement press joint

Patent metadata

Field	Value
Publication number	US-9874106-B2
Application number	US-201514919203-A
Country	US
Kind code	B2
Filing date	Oct 21, 2015
Priority date	Oct 21, 2015
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

A number of variations may include a product comprising: a vane lever comprising a first end, a second end, a top surface, and a bottom surface; an opening which extends through the second end and which is defined by an inner surface, and wherein a perimeter of the inner surface comprises a plurality of vertical flutes which extend a length of the inner surface and which are constructed and arranged to displace a material of a vane shaft.

First claim

What is claimed is:

1. A product comprising: a vane lever comprising a first end, a second end, a top surface, and a bottom surface, an opening which extends through the second end and is defined by an inner surface, and wherein a perimeter of the inner surface comprises a plurality of vertical flutes each extending a length of the inner surface and wherein each vertical flute includes a cutting edge constructed and arranged to displace a material of a vane shaft when the vane lever is pressed onto the vane shaft.

2. The product of claim 1 wherein the opening further includes a radial lip which extends inward from a perimeter of a top edge of the inner surface and covers at least a portion of the opening.

3. The product of claim 2 wherein the radial lip includes a through hole.

4. The product of claim 1 further comprising a tab which extends approximately perpendicularly downward from the first end and which is constructed and arranged to mate with an adjustment ring of a vane pack assembly.

5. The product of claim 1 wherein the first end comprises a fork profile which is constructed and arranged to attach to an adjustment ring of a vane pack assembly.

6. The product of claim 5 wherein the fork profile includes a first and a second protrusion which are constructed and arranged to surround a pin attached to the adjustment ring.

7. The product of claim 1 further comprising a vane component comprising a vane shaft and a vane which rotates around the vane shaft, and wherein the vane lever is pressed onto the vane shaft so that a material of the vane shaft is displaced.

8. The product of claim 7 wherein the vane shaft includes a stepped portion which is constructed and arranged to allow a portion of the vane shaft to extend above the vane lever.

9. A method to assemble a vane lever to a vane shaft comprising:
providing a vane lever with an opening defined by an inner surface having a plurality of vertical flutes; and
pressing the vane lever onto a vane shaft so that the inner surface extends around an outer perimeter of the vane shaft and displaces a material of the vane shaft using the plurality of flutes and causing resistance to at least one of a torque or axial forces between the vane lever and the vane shaft.

10. The method of claim 9 further comprising riveting the vane shaft to the vane lever.

11. A method to assemble a vane pack assembly comprising:
providing a plurality of vane components each having a vane shaft and a vane interposed between a lower vane ring and an upper vane ring;
placing an adjustment ring onto the upper vane ring;
providing a plurality of vane levers each having an opening defined by an inner surface comprising a plurality of vertical flutes;
placing the plurality of vane levers onto the plurality of vane components so that the inner surfaces are aligned with an outer perimeter of the vane shafts; and
pressing the plurality of vane levers onto the plurality of vane shafts so that the plurality of vertical flutes on the inner surfaces displace material on the vane shafts.

12. The method of claim 11 further comprising riveting the vane shafts to the vane levers.

13. The method of claim 11 further comprising providing a tab on a first end of each of the vane levers which extends within the adjustment ring.

14. The method of claim 13 further comprising providing a plurality of blocks within the adjustment ring which each include an opening constructed and arranged to accommodate the tab on the vane levers.

15. The method of claim 11 further comprising providing a fork profile on the first end of the vane lever which is constructed and arranged to surround a pin attached to the adjustment ring.

16. A vane lever comprising a body, wherein the body includes a cavity defined by an inner cylindrical surface and an inner top surface, wherein the cavity is constructed and arranged to attach to and conceal a top portion of a vane shaft, wherein the inner cylindrical surface includes a plurality of vertical flutes each extending a length of the inner cylindrical surface and wherein each vertical flute includes a cutting edge.

17. A vane lever comprising a body, wherein the body includes a first surface and a second surface opposite of the first surface and a cavity defined by an inner cylindrical surface which extends from the second surface, and wherein the first surface extends across the entire body, and wherein the inner cylindrical surface includes a plurality of vertical flutes each extending a length of the inner cylindrical surface and wherein each vertical flute includes a cutting edge.

Assignees

• Borgwarner Inc

Inventors

• King Matthew
• Morgan Elias
• Williams Greg

Classifications

• F02C6/12

  Turbochargers, i.e. plants for augmenting mechanical power output of internal-combustion piston engines by increase of charge pressure · CPC title

• F05D2240/12

  Fluid guiding means, e.g. vanes · CPC title

• F01D17/165 Primary

  for radial flow, i.e. the vanes turning around axes which are essentially parallel to the rotor centre line (F01D17/167 takes precedence) · CPC title

• F01D17/167

  of vanes moving in translation · CPC title

• F05D2220/40

  in turbochargers · CPC title