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Multistep turbocharger arrangement

A turbocharger, high-pressure stage technology, used in exhaust devices, machines/engines, combustion engines, etc., can solve problems such as easy-to-wear valve discs, casing control boxes, and complicated turbocharger arrangement and design.

Inactive Publication Date: 2009-09-30
BORGWARNER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Known turbocharger arrangements of the type described have the disadvantage of a complex design, with valve discs, bushings and control boxes which are particularly prone to wear as a result of a fragile crank drive

Method used

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  • Multistep turbocharger arrangement
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  • Multistep turbocharger arrangement

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0015] figure 1 A multi-stage turbocharger arrangement 1 is shown for an internal combustion engine, in particular a diesel engine or a spark ignition engine, which in this example has a two-stage design, however, the engine is not shown therein so that Simplify the diagram.

[0016] The turbocharger arrangement 1 has a high-pressure stage 2 and a low-pressure stage 3 which are formed in each case by a correspondingly designed turbocharger, the turbine casing of the turbine of which in each case body is shown in these figures.

[0017] The high-pressure stage 2 and the low-pressure stage 3 are operatively connected to one another via an openable and closable flow conduit system 4 , for which purpose a regulating unit 5 is provided.

[0018] as specific from figure 1 with figure 2 As can be seen in , the regulating unit 5 is arranged in a manifold 6 between the high-pressure stage 2 and the low-pressure stage 3 . As is evident from the comparison of all these figures, the...

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PUM

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Abstract

The invention relates to a multistep turbocharger arrangement (1) for an internal combustion engine with a high-pressure step (2), with a low-pressure step (3) which can be brought into operative connection to the high-pressure step (2) over a fluid passage system (4) which can be opened and closed, and with a control unit (5) for controlling the operative connection between the high-pressure step (2)and the low-pressure step (3), wherein the control unit (5) and the fluid passage system (4) are integrated in an engine exhaust manifold (6) which is disposed between the high-pressure step (2) and the low-pressure step (3).

Description

technical field [0001] The invention relates to a multi-stage turbocharger arrangement according to the preamble of claim 1 . Background technique [0002] Known turbocharger arrangements of the type described have the disadvantage of a complex design, with valve discs, bushings and control boxes which are particularly prone to wear as a result of a fragile crank drive. Furthermore, uniform and continuous cross-sectional openings which contribute to the accuracy of the adjustment or the quality of the adjustment characteristic can only be realized to a limited extent. Contents of the invention [0003] It is therefore an object of the present invention to create a multi-stage turbocharger arrangement according to the preamble of claim 1 , the regulation system of which has improved regulation accuracy and a simplified and compact design. [0004] This object is achieved by the features of claim 1 . [0005] According to the invention, a simplified regulating unit is used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/013F02B37/18F02B39/00F01N7/10F01N13/10
CPCF02B37/18F02B37/002F02B39/00F02B37/013F02B37/02F02B37/183F01N13/10Y02T10/144Y02T10/12
Inventor M·施蒂根鲍尔G·沙尔
Owner BORGWARNER INC