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Variable geometry turbine/compressor

A geometry and compressor technology, applied in the direction of machines/engines, gas turbine devices, mechanical equipment, etc., can solve problems such as difficult control, high exhaust gas turbocharger, weakening the life of turbines/compressors with variable geometry

Inactive Publication Date: 2016-10-05
BMTS TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The friction forces that arise here not only lead to high hysteresis and the resulting intractability of the exhaust gas turbocharger, but also impair the life of the variable-geometry turbo / compressor

Method used

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  • Variable geometry turbine/compressor
  • Variable geometry turbine/compressor
  • Variable geometry turbine/compressor

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Experimental program
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Effect test

Embodiment Construction

[0018] Refer to Figure 1 and figure 2 , the inventive variable geometry turbine / compressor 1 of a gas turbocharger for an internal combustion engine of a motor vehicle includes a vane bearing ring 2 on which guide vanes 3 are mounted. The cover plate 4 is arranged on the surface of the guide vane 3 , in order to better show the surface end 5 of the guide vane 3 facing the cover plate 4 , FIG. 1 only shows a part of the cover plate 4 . According to the invention, at least one air guide channel 6 , generally an air guide channel, runs through at least one guide vane 3 , comprising at least one air inlet 8 , 8 ′ in the area of ​​the lateral projection 7 and one located towards the cover. Discharge openings 10, 10', 10" on the surface end 5 of the disc 4 and / or on the bottom 9 towards the blade bearing ring 2, and thereby produce a reduction in the surface end 5 and / or on the bottom 9 Gas buffers for friction, especially air buffers.

[0019] Obviously, the guide vane 3 of the ...

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Abstract

A variable turbine / compressor geometry for an exhaust gas turbocharger of an internal combustion engine includes a blade bearing ring having guide blades rotatably mounted therein and a cover disc which is arranged on the face end of the guide blades. At least one gas guide channel may run through at least one guide blade. The gas guide channel including, adjacent to a profile lug, a least one inlet opening, and on at least one of a face end directed towards the cover disc and a bottom side directed towards the blade bearing ring includes an outlet opening. The gas guide channel may be configured to generate a friction-reducing air cushion during operation on at least one of the face end and the bottom side.

Description

technical field [0001] The invention relates to a variable geometry turbine / compressor, in particular for an exhaust gas turbocharger of an internal combustion engine. The invention also relates to a supercharging device having said variable geometry turbine / compressor and guide vanes. Background technique [0002] A supercharging device is a device for increasing the power of a motor vehicle's internal combustion engine of modern design, wherein, in a supercharging device designed as an exhaust gas turbocharger, the exhaust gas of the internal combustion engine drives the turbine of the supercharging device and turns the compression through the turbine wheel, whereby the compressor can supply compressed boost gas to the internal combustion engine. [0003] In known variable geometry turbines / compressors which generally include guide vanes rotatably mounted on a vane bearing ring, due to the axial forces acting on the guide vanes, Friction is generated between the guide va...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D5/12F01D5/14F01D5/18F01D17/16F02C6/12
CPCF01D5/147F01D9/045F01D17/165F02B37/24F05D2220/40F05D2230/21F05D2230/22F05D2240/12F05D2240/121F05D2240/125F05D2260/60Y02T10/12
Inventor 约亨·劳本德尔延斯·克雷斯
Owner BMTS TECH SHANGHAI CO LTD
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