Preswirl guide device

A guiding device, pre-rotation technology, applied in the components of pumping devices for elastic fluids, non-variable pumps, engine components, etc., can solve the problems of cost and tolerance, reduce reliability, etc., and achieve simplified maintenance operations , the effect of reducing the number

Inactive Publication Date: 2009-04-22
ABB TURBO SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This results in additional costs and tolerances and significantly reduces reliability in operation

Method used

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  • Preswirl guide device
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Examples

Experimental program
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Embodiment Construction

[0024] figure 1 A sectional view of the guide device in the suction region of the compressor is shown. Such compressors are used, as explained at the outset, in exhaust gas turbochargers for increasing the power of internal combustion engines. The arrows in the figures indicate the flow path of the medium to be compressed, usually air or optionally the air-fuel mixture for the combustion process in the internal combustion engine. Furthermore, such guides can be used in every type of compressor, for example in industrial compressors driven by electric motors.

[0025] The guide device comprises a plurality of guide vanes 10 arranged oriented in the radial direction with respect to the compressor axis. Each guide vane comprises, in addition to a vane profile 11 protruding into the flow channel, a vane shank 12 with which the vane profile is rotatably mounted in the housing. The blade profile can be rotated around the axis of the blade shaft via the adjusting rod 13 . For dri...

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Abstract

A preswirl guide device for generating a preswirl in the intake region of a compressor comprises a multiplicity of guide vanes (10) which can be pivoted in each case about a vane shank (12) which is connected to the guide vane, and a pivotable adjusting ring (30) and adjusting levers (13) for transmitting torque from the adjusting ring (30) to the vane shank (12) of each guide vane. The vane shank (12) and the adjusting lever (13) of each guide vane are of single-piece configuration. The housing, in which the guide vanes (10) are mounted rotatably, comprises at least two parts (41, 42) which are joined together in the region of the bearings of the guide vane. The single-piece configuration of the guide vane reduces the number of components which are to be fitted. This simplifies the fitting and possible service work on the guide device.

Description

technical field [0001] The invention relates to the field of fluid machines which are acted upon by the exhaust gas of an internal combustion engine. [0002] The invention relates to a guide device for generating a prerotation in the suction region of a compressor and to an exhaust gas turbocharger having such a prerotation guide device. Background technique [0003] The exhaust gas turbocharger is used to increase the power of the internal combustion engine. In modern internal combustion engines it is becoming increasingly difficult to adapt the exhaust gas turbocharger to changing operating conditions. So-called variable turbine geometries and / or compressor geometries offer a wide range of options for adaptation. With variable turbine geometry, the guide vanes of the guide device are aligned upstream of the turbine more or less steeply relative to the flow direction, depending on the power requirement of the turbine. With variable compressor geometry, the guide vanes i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/46F01D17/16
CPCF04D29/462F04D29/4213F05D2250/51F01D17/16F04D29/46
Inventor D·奥施格J·巴蒂格A·科普J·库尼尔
Owner ABB TURBO SYST
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