Compressor with Variable Compressor Inlet

Patent metadata

Field	Value
Publication number	US-2016238013-A1
Application number	US-201415027021-A
Country	US
Kind code	A1
Filing date	Sep 25, 2014
Priority date	Oct 2, 2013
Publication date	Aug 18, 2016
Grant date	—

Abstract

A compressor for a turbocharger may include a compressor wheel with compressor blades mounted in a housing defining a compressor inlet. The compressor inlet may include an inner pipe and an outer pipe surrounding said inner pipe. The inner pipe may be directed toward the radially inner region of the compressor blades and the outer pipe directed toward the radially outer region of the compressor blades. The passage cross section of the outer pipe and/or of the inner pipe may be at least partially shut off by means of shutoff devices.

First claim

What is claimed is:

1 . A compressor of a turbocharger, the compressor comprising:
a compressor housing, a compressor wheel mounted therein, with compressor blades and a compressor inlet, wherein the compressor inlet comprises, at least in a section adjacent to the compressor housing, an inner pipe and an outer pipe surrounding said inner pipe, the inner pipe is directed toward the radially inner region of the compressor blades and the passage cross section of the outer pipe and/or of the inner pipe operable to be at least partially shut off by means of shutoff devices, wherein the outer pipe is directed toward the radially outer region of the compressor blades, the compressor inlet comprises two pipes arranged adjacent to one another, of which one is passed into the interior of the other and extends as far as the compressor housing as an inner pipe extending in the outer pipe, and in that the shutoff devices are arranged in at least one of the pipes arranged adjacent to one another.

2 . The compressor as claimed in claim 1 , wherein the shutoff devices comprise an air flap.

3 . The compressor as claimed in claim 1 , wherein the shutoff devices comprise a slide.

4 . The compressor as claimed in claim 1 , further comprising an actuator controlling the shutoff devices based at least in part on an operating parameter of an associated internal combustion engine.

5 . The compressor as claimed in claim 4 , wherein the operating parameter includes the engine load.

6 . The compressor as claimed in claim 4 , wherein a single actuator controls the shutoff devices of both pipes.

7 . The compressor as claimed in claim 1 , wherein the shutoff devices replace a throttle valve in a header pipe.

8 . An internal combustion engine comprising:
a compressor housing, a compressor wheel mounted in the compressor housing, the compressor wheel having compressor blades, a compressor inlet including, at least in a section adjacent to the compressor housing, an inner pipe and an outer pipe surrounding said inner pipe, the inner pipe directed toward the radially inner region of the compressor blades and the outer pipe directed toward the radially outer region of the compressor blades, a set of shutoff devices arranged in at least one of the pipes and operable to at least partially shut off the passage cross section of the outer pipe and/or of the inner pipe.

9 . The internal combustion engine as claimed in claim 8 , wherein the shutoff devices comprise an air flap.

10 . The internal combustion engine as claimed in claim 8 , wherein the shutoff devices comprise a slide.

11 . The internal combustion engine as claimed in claim 8 , further comprising an actuator controlling the shutoff devices based at least in part on an operating parameter of an associated internal combustion engine.

12 . The internal combustion engine as claimed in claim 11 , wherein the operating parameter includes the engine load.

13 . The internal combustion engine as claimed in claim 11 , wherein a single actuator controls the shutoff devices of both pipes.

14 . The internal combustion engine as claimed in claim 8 , wherein the shutoff devices replace a throttle valve in a header pipe.

Assignees

• Continental Automotive Gmbh

Inventors

• Weigl Manfred
• Grass Philippe

Classifications

• F04D29/4206

  especially adapted for elastic fluid pumps · CPC title

• F04D27/003 Primary

  by throttling (F04D27/002 takes precedence) · CPC title

• F02D41/0007

  for control of turbo-charged or super-charged engines (control of the pumps per se F02B37/12) · CPC title

• F04D27/0253 Primary

  by throttling (F04D27/0246 takes precedence) · CPC title

• F04D29/4213

  suction ports · CPC title