公开(公告)号：US20140338328A1

公开(公告)日：2014-11-20

申请号：US13896488

申请日：2013-05-17

Applicant: Caterpillar Inc.

Inventor： Christopher Lusardi ,  Richard W. Kruiswyk ,  Kerry A. Delvecchio ,  Matthew T. Wolk ,  Rohan Swar ,  Carl-Anders Hergart

IPC: F02M25/07 ,  F01D9/04

CPC classification number: F02M25/0707 ,  F01D9/026 ,  F01D9/04 ,  F01D9/045 ,  F01D9/047 ,  F02M26/05

Abstract: A turbine includes a turbine housing having two gas passages of substantially the same flow area. A nozzle ring is disposed in the housing and around the turbine wheel. The nozzle ring includes first and second outer rings, and an inner ring disposed between the first and second outer rings. First and second pluralities of vanes are disposed between the rings. The second outer ring has a thicker cross section than the first outer ring such that a larger flow area is created between the first outer ring and the inner ring than a flow area created between the second outer ring and the inner ring.

Abstract translation: 涡轮机包括具有基本上相同流动面积的两个气体通道的涡轮机壳体。 喷嘴环设置在壳体中并且围绕涡轮机叶轮。 喷嘴环包括第一和第二外圈以及设置在第一和第二外圈之间的内圈。 第一和第二多个叶片设置在环之间。 第二外圈具有比第一外圈更厚的横截面，使得在第一外圈和内圈之间产生比在第二外圈和内圈之间形成的流动区域更大的流动面积。

公开(公告)号：US09157396B2

公开(公告)日：2015-10-13

申请号：US13896488

申请日：2013-05-17

Applicant: Caterpillar Inc.

Inventor： Christopher Lusardi ,  Richard W. Kruiswyk ,  Kerry A. Delvecchio ,  Matthew T. Wolk ,  Rohan Swar ,  Carl-Anders Hergart

IPC: F02D23/00 ,  F02B33/44 ,  F01D1/02 ,  F02M25/07 ,  F01D9/04 ,  F01D9/02

CPC classification number: F02M25/0707 ,  F01D9/026 ,  F01D9/04 ,  F01D9/045 ,  F01D9/047 ,  F02M26/05

Abstract: A turbine includes a turbine housing having two gas passages of substantially the same flow area. A nozzle ring is disposed in the housing and around the turbine wheel. The nozzle ring includes first and second outer rings, and an inner ring disposed between the first and second outer rings. First and second pluralities of vanes are disposed between the rings. The second outer ring has a thicker cross section than the first outer ring such that a larger flow area is created between the first outer ring and the inner ring than a flow area created between the second outer ring and the inner ring.

Abstract translation: 涡轮机包括具有基本上相同流动面积的两个气体通道的涡轮机壳体。 喷嘴环设置在壳体中并且围绕涡轮机叶轮。 喷嘴环包括第一和第二外圈以及设置在第一和第二外圈之间的内圈。 第一和第二多个叶片设置在环之间。 第二外圈具有比第一外圈更厚的横截面，使得在第一外圈和内圈之间产生比在第二外圈和内圈之间形成的流动区域更大的流动面积。