Adjustable compressor trim

Patent metadata

Field	Value
Publication number	US-9777737-B2
Application number	US-201214353893-A
Country	US
Kind code	B2
Filing date	Nov 13, 2012
Priority date	Nov 14, 2011
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

An assembly can include a compressor housing, an adjustable wall disposed within the compressor housing that defines an air inlet to an inducer portion of a compressor wheel, and an adjustment mechanism to adjust the wall and thereby adjust at least a diameter of the air inlet. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.

First claim

What is claimed is:

1. An assembly comprising:
a compressor housing;
a bladder disposed in the compressor housing that defines a diameter of an air inlet to an inducer portion of a compressor wheel; and
an adjustable wall disposed in the compressor housing wherein the adjustable wall translates axially with respect to a rotational axis of the compressor wheel to abut the bladder and define an angle of the bladder leading to the diameter of the air inlet.

2. The assembly of claim 1 wherein adjustment of the bladder adjusts a surge line.

3. The assembly of claim 1 wherein adjustment of the angle alters an incident angle of inlet air directed to an inducer portion of a blade of the compressor wheel.

4. The assembly of claim 1 wherein adjustment of the diameter alters a cross-sectional flow area of inlet air directed to an inducer portion of a blade of the compressor wheel.

5. The assembly of claim 1 wherein the bladder comprises a fluid pressure mechanism.

6. The assembly of claim 1 wherein the adjustable wall comprises a mechanical mechanism.

7. The assembly of claim 1 further comprising a controller to control at least one of the bladder and the adjustable wall responsive to one or more operational parameters.

8. The assembly of claim 1 wherein the bladder comprises a fluid pressure mechanism and wherein the adjustable wall comprises a mechanical mechanism.

9. The assembly of claim 1 wherein the adjustable wall is adjustable to cover a recess in the compressor housing.

10. The assembly of claim 9 wherein the recess comprises a recess for the bladder.

11. A method comprising:
operating a turbocharger;
adjusting a diameter of an inlet wall to an inducer portion of a compressor of the turbocharger via a bladder, wherein the compressor comprises a compressor wheel;
and adjusting an angle of the inlet wall via an adjustable wall that translates axially with respect to a rotational axis of the compressor wheel to abut the bladder.

12. The method of claim 11 further comprising detecting diminishing corrected flow with respect to the compressor and adjusting the diameter responsive to the detected diminishing corrected flow.

Assignees

• Honeywell Int Inc

Inventors

• Houst Vit
• Ferda Josef
• Nejedly Milan
• Turecek Daniel

Classifications

• F02B37/22

  by varying cross-section of exhaust passages or air passages {, e.g. by throttling turbine inlets or outlets or by varying effective number of guide conduits} (F02B37/24 takes precedence) · CPC title

• F04D27/002 Primary

  by varying geometry within the pumps, e.g. by adjusting vanes · CPC title

• Y02T10/144

  Cross-Sectional Technologies · mapped topic

• F04D29/681

  especially adapted for elastic fluid pumps · CPC title

• F04D27/0253

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