GB2616217A

GB2616217A - Compressor

Info

Publication number: GB2616217A
Application number: GB2309154.9A
Authority: GB
Inventors: Garge Tejas; Kulkarni Rohan; Bobade Vidyesh; Sane Siddharth; Mehta Vivek
Original assignee: Cummins Ltd
Current assignee: Cummins Ltd
Priority date: 2020-12-04
Filing date: 2021-12-03
Publication date: 2023-08-30

Abstract

A vane arrangement for a compressor is disclosed. The vane arrangement comprises a generally annular vane deck and at least one vane. The generally annular vane deck extends at least partway around a longitudinal axis, defining a deck thickness b in the axial direction. The at least one vane projects from a first surface of the vane deck. The at least one vane comprises a leading edge, a trailing edge, and first and second pressure surfaces. The leading edge is proximate the longitudinal axis. The trailing edge is distal the longitudinal axis. The first and second pressure surfaces extend between the leading edge and the trailing edge. The at least one vane defines a neck thickness t, proximate the leading edge, in a plane normal to the longitudinal axis, wherein t/b≥ about 0.21.

Claims

CLAIMS:

1 . A vane arrangement for a compressor, the vane arrangement comprising: a generally annular vane deck, extending at least partway around a longitudinal axis, defining a deck thickness b in the axial direction; and at least one vane which projects from a first surface of the vane deck, the at least one vane comprising: a leading edge proximate the longitudinal axis; a trailing edge distal the longitudinal axis; and first and second pressure surfaces which extend between the leading edge and the trailing edge; wherein the at least one vane defines a neck thickness t, proximate the leading edge, in a plane normal to the longitudinal axis; and wherein > about 0.21. b
2. The vane arrangement according to claim 1 , wherein >0.21 .
3. The vane arrangement according to claims 1 or 2, wherein: about 0.21 < < about 0.38.
4. The vane arrangement according to claim 3, wherein: 0.21 < < 0.38.
5. The vane arrangement according to any preceding claim, wherein > about 0.27, preferably > 0.27.
6. The vane arrangement according to claim 5, wherein about 0.27 < < about 0.37, preferably 0.27 < < 0.37.
7. The vane arrangement according to any preceding claim, wherein the at least one vane defines: a camber line being defined between the leading edge and trailing edge; and a chord length I; wherein the leading edge defines a leading edge angle 0; and wherein: about 11 < t(l cos 0) < about 25. 65
8. The vane arrangement according to claim 7, wherein: 11 < t(l cos 0) < 25.
9. The vane arrangement according to claims 7 or 8, wherein about 16< t(l cos 0) < about 24, preferably 16< t(l cos 0) < 24.
10. A compressor, the compressor comprising: a compressor cover; a compressor wheel defining a wheel diameter d, the compressor wheel being rotatable about the longitudinal axis and received by the compressor cover; and the vane arrangement according to any preceding claim; wherein bd > about 0.0014.
11. The compressor according to claim 10, wherein: > 0.0014.
12. The compressor according to claims 10 or 11 , wherein: about 0.0014 < bd < about 0.0026.
13. The compressor according to claim 12, wherein: 0.0014 < < 0.0026.
14. The compressor according to any one of claims 10 to 13, wherein > about 0.0018, preferably > 0.0018.
15. The compressor according to claim 14, wherein about 0.0018 < ^ < about 0.0025, preferably 0.0018 < < 0.0025.
16. The compressor according to any one of claims 10 to 13, wherein: about 0.069 < t(l c d°s 0) < about 0.17.
17. The compressor according to claim 16, wherein: 0.069 < t(l c °s 0') < 0.17.
18. The compressor according to claims 14 or 15, wherein: 66 about 0.1 < about 0.16, preferably 0.1 < 0.16.
19. A vane arrangement for a compressor, the vane arrangement comprising: a generally annular vane deck, extending at least partway around a longitudinal axis; and at least one vane which projects from a first surface of the vane deck, the at least one vane comprising: a leading edge proximate the longitudinal axis, the leading edge defining a leading edge angle 0; a trailing edge distal the longitudinal axis, a camber line being defined between the leading edge and trailing edge; and first and second pressure surfaces which extend between the leading edge and the trailing edge; wherein the at least one vane defines a chord length /; wherein the at least one vane further defines a neck thickness t, proximate the leading edge, in a plane normal to the longitudinal axis; and wherein: about 16 < t(l cos 0) < about 24.
20. The vane arrangement according to claim 19, wherein: 16 < t(l cos 0) < 24.
21 . A compressor, the compressor comprising: a compressor cover; a compressor wheel, defining an wheel diameter d, received by the compressor cover; and the vane arrangement according to claims 19 or 20; wherein: about 0.1 < t(1 c°s 0') < about 0.16. d
22. The vane arrangement, or compressor, according to any preceding claim, wherein the vane arrangement forms part of a vane insert.
23. A compressor cover for a turbomachine, the compressor cover comprising: the vane arrangement according to any one of claims 1 to 9, 19 or 20, wherein the at least one vane is integrally formed with the compressor cover. 67
24. The compressor according to any one of claims 10 to 17, or 21 , wherein the at least one vane is integrally formed with the compressor cover.
25. A turbocharger comprising: the compressor according to any one of claims 10 to 17, 21 , or 24; a turbine comprising a turbine housing and a turbine impeller; and a support member; wherein the compressor wheel and turbine wheel are in power communication with one another.
26. A computer program comprising computer executable instructions that, when executed by a processor, cause the processor to control an additive manufacturing apparatus to manufacture the vane arrangement according to any one of claims 1 to 9, 19 or 20, and optionally the vane insert according to claim 22 or the compressor cover according to claim 24.
27. A method of manufacturing a device via additive manufacturing, the method comprising: obtaining an electronic file representing a geometry of a product wherein the product is a vane arrangement according to any one of claims 1 to 9, 19 or 20, and optionally the vane insert according to claim 22 or the compressor cover according to claim 24; and controlling an additive manufacturing apparatus to manufacture, over one or more additive manufacturing steps, the product according to the geometry specified in the electronic file.
28. A method of manufacturing a vane arrangement according to any one of claims 1 to 9, 19 or 20, optionally using an additive manufacture method.
29. A method of designing the vane arrangement according to any one of claims 1 to 9, wherein the method comprises: adjusting: the deck thickness b; and/or the neck thickness t; such that >about 0.21 , preferably such that >about 0.27. 68
30. A method of designing the vane arrangement according to any one of claims 7 to 9, 19 or 20, wherein the method comprises: adjusting: the neck thickness f; and/or the leading edge angle 0; and/or the chord length /; such that about 11 < t(l cos 0) < about 25, preferably such that about 16 < t(l cos 0) < about 24.
31. The vane arrangement of any one of claims 1 to 9, 19 or 20, wherein a profile of the at least one vane is defined by the plot data or normalised data of Table 1.
32. A vane for a vane arrangement, the vane having a profile defined by the plot data or normalised data of Table 1.