Compressor cover with integrated heat shield for an actuator

Patent metadata

Field	Value
Publication number	US-2016186779-A1
Application number	US-201514854619-A
Country	US
Kind code	A1
Filing date	Sep 15, 2015
Priority date	Dec 19, 2014
Publication date	Jun 30, 2016
Grant date	—

Abstract

The disclosure describes a compressor housing for a turbocharger system. A scroll section of a collecting volute may be defined by a wall of the compressor housing. The scroll section may extend around the axis of the compressor from an inlet of the volute to a scroll discharge stage. A plate section of the compressor housing may extend from the wall in a radial direction outward from the axis and may extend in a circumferential direction around a substantial portion of the collecting volute. The plate section may be configured to shield heat and may advantageously be formed integral with the compressor housing.

First claim

What is claimed is:

1 . A compressor housing for a turbocharger system, the compressor housing comprising: an axis to coincide with a rotational axis of a compressor wheel housed by the compressor housing; a scroll section of a collecting volute defined by a wall of the compressor housing, the scroll section extending around the axis from an inlet of the volute to a scroll discharge stage; a plate section extending from the wall in a radial direction outward from the axis and extending in a circumferential direction around a substantial portion of the collecting volute, the plate section configured to shield heat; and wherein the plate section is integral with the compressor housing.

2 . The compressor housing according to claim 1 wherein the compressor housing and the plate section are cast together as one piece from aluminum.

3 . The compressor housing according to claim 1 wherein the scroll discharge stage extends from the scroll section to a discharge port, wherein the discharge port has an edge on a turbine side of the compressor housing and wherein the plate section is located in a direction of the axis in line with the edge.

4 . The compressor housing according to claim 1 wherein the compressor housing includes an outer circumference with four equidistantly spaced bosses arranged around the outer circumference, wherein the plate section is integrally formed with at least two of the bosses, and wherein the at least two of the bosses extend radially outward from the outer circumference and join with the plate section.

5 . The compressor housing according to claim 1 wherein there are no gaps between the wall and the plate section.

6 . The compressor housing according to claim 1 wherein the plate section includes a peripheral edge that extends around the plate section between a first juncture with the wall and a second juncture with the wall, and wherein the plate section exists entirely between the peripheral edge and the wall and wherein the plate section is flat between the peripheral edge and the wall.

7 . The compressor housing according to claim 1 wherein the compressor housing includes a mounting flange for attaching the compressor housing to the turbocharger system wherein the plate section is located adjacent the flange in a direction of the axis.

8 . A compressor housing for a turbocharger system, the compressor housing comprising: a housing section that has a central opening to channel intake air into the housing section with a collecting volute formed by the housing section around the central opening, the collecting volute leading to a discharge stage configured to channel the intake air out of the compressor housing, with an outer circumference extending around the collecting volute; and a plate section for heat blocking, the plate section extending from the outer circumference in a radially outward direction, the plate section formed as one piece with the housing section.

9 . The compressor housing according to claim 8 wherein an axis extends through a center of the central opening, wherein the outer circumference has an apex that is a most distant part of the collecting volute from the axis, and wherein the plate section joins with the housing section at the apex.

10 . The compressor housing according to claim 8 wherein the plate section includes a peripheral edge that extends around the plate section between a first juncture with the wall and a second juncture with the wall and wherein the plate section exists entirely between the peripheral edge and the wall and wherein the plate section is entirely flat between the peripheral edge and the wall.

11 . The compressor housing according to claim 8 wherein the plate section joins with the housing section in a gap free continuity.

12 . A turbocharger system comprising: a turbine assembly having a lever for operating a shaft; a central housing connected to the turbine assembly; a compressor housing connected to the central housing; an actuator assembly mounted on the compressor housing, the actuator assembly linked to the lever to operate the shaft; and a plate section formed as one piece with the compressor housing, the plate section extending between the actuator assembly and the turbine assembly to block heat from the turbine assembly from reaching the actuator assembly, wherein the plate section joins with the compressor housing in a gap free continuity so that heat from the turbine housing cannot radiate between the plate section and the compressor housing.

Assignees

• Borgwarner Inc

Inventors

• Cooley Matthew
• Date Aaron

Classifications

• F04D29/4206

  especially adapted for elastic fluid pumps · CPC title

• F05D2240/15

  Heat shield · CPC title

• F05D2260/231

  Preventing heat transfer · CPC title

• F05D2220/40

  in turbochargers · CPC title

• F04D29/5853 Primary

  heat insulation or conduction · CPC title