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Turbine cleaning for supercharged internal combustion engines

A technology for internal combustion engines and turbines, applied in the field of exhaust systems and controlling such exhaust systems, can solve problems such as interfering with the normal operation of turbines

Inactive Publication Date: 2016-08-17
CATERPILLAR MOTOREN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Contaminants can deposit on the surface of the turbine wheel and, therefore, may interfere with the proper operation of the turbine

Method used

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  • Turbine cleaning for supercharged internal combustion engines
  • Turbine cleaning for supercharged internal combustion engines

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Embodiment Construction

[0016] Exemplary embodiments of the present invention are described in detail below. The exemplary embodiments described herein and illustrated in the accompanying drawings are intended to teach the principles of the invention and enable one skilled in the art to implement and use the invention in various environments and for a number of different applications. Therefore, this exemplary embodiment is not intended and should not be considered as a limited description of the scope of patent protection. Rather, the scope of patent protection is defined by the appended claims.

[0017] During cleaning procedures of turbines, it may be desirable to provide arrangements for limiting the exposure of the exhaust gas treatment device to the cleaning medium supplied by the cleaning system, since the cleaning medium containing detached deposits and exhaust gas may clog and thus possibly damage the exhaust gas treatment device.

[0018] The present invention may be based in part on the ...

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Abstract

Restricting exhaust gas treatment devices from contacting a washing medium supplied by a washing system may reduce affecting the exhaust gas treatment devices. A washing system (50) may comprise a washing device (52) configured to supply a washing medium to a turbine ( T H ) during an ON mode of the washing system (50) and a fluid flow control system (38). The fluid flow control system (38) may be configured, during an OFF mode of the washing system (50), to direct exhaust gas through the at least one exhaust gas treatment device (41), and during the ON mode of the washing system (50), to restrict a mixture of exhaust gas and washing medium exiting the turbine ( T H ) from being directed through the at least one exhaust gas treatment device (41).

Description

technical field [0001] The present invention relates generally to a turbocharged engine system having an exhaust system, and more particularly to an exhaust system having a cleaning system for cleaning a turbine of a turbocharger. The invention also relates to a method for controlling such an exhaust system. Background technique [0002] Internal combustion engines emit a complex mixture of air pollutants. These air pollutants consist of gaseous compounds such as nitrogen oxides (NO x ) and solid particulate matter also known as soot. Due to increased environmental awareness, exhaust emission standards have become more stringent, and NO emitted into the atmosphere by engines x and the amount of soot may be specified according to the type of engine, the size of the engine and / or the kind of engine. [0003] To ensure compliance with environmental regulations such as NO x According to the regulations, the exhaust gas can be treated by the exhaust gas treatment device. A ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D25/00F02C6/12F01N3/20
CPCF01D25/002F01N3/2053F01N2590/02F02B37/013F02B37/18F02C6/12F05D2220/40Y02T10/12
Inventor M·克吕格尔
Owner CATERPILLAR MOTOREN