Streamline tunnel type turbocharger

A turbocharger and tunnel-type technology, applied in the direction of non-variable pumps, machines/engines, pumping devices for elastic fluids, etc., can solve the problem of streamline tunnels that are not deep and have no application examples In order to achieve the effects of controlling weight, widening the range of material selection, and increasing strength

Inactive Publication Date: 2020-12-18
萍乡北京理工大学高新技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are few and in-depth studies on streamlined tunnel

Method used

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  • Streamline tunnel type turbocharger
  • Streamline tunnel type turbocharger
  • Streamline tunnel type turbocharger

Examples

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Embodiment Construction

[0028] In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. A streamline tunnel turbocharger provided by the present invention comprises: a streamline tunnel turbine 1, a streamline tunnel compressor wheel 2, a turbine shell 3, a compressor shell 4, an intermediate shell 5 and a rotating shaft 6; The linear tunnel type turbine 1 and the streamline tunnel type compressor wheel 2 are respectively mounted on both ends of the rotating shaft 6 to form a supercharger rotor; the rear side of the streamline tunnel type compressor wheel 2 is provided with an oil thrust rotary bearing assembly 9 .

[0029] Further, the streamline tunnel turbine 1 and the streamline tunnel compressor wheel 2 are closed rotating mechanical structures; and the structures of the two can be exactly the same; the streamline tunnel turbine 1 and the streamline tunnel compressor wheel 2 have A pl...

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Abstract

The invention discloses a streamline tunnel type turbocharger, and belongs to the field of turbochargers. The streamline tunnel type turbocharger comprises a streamline tunnel type turbine, a streamline tunnel type gas compressor wheel, a turbine shell, a gas compressor shell, a middle shell and a rotating shaft. The streamline tunnel type turbine and the streamline tunnel type gas compressor wheel are installed at the two ends of the rotating shaft correspondingly, and a supercharger rotor is formed. An oil thrust bearing assembly is arranged at the rear side of the streamline tunnel type gascompressor wheel. The streamline tunnel type turbocharger is higher in strength, and damage is not likely to happen; due to higher structural strength, the material selection range is widened, the cost is better reduced, and the weight is controlled; and if the turbine and the gas compressor wheel which are completely the same in structure are used, especially when a ceramic composite material isused, the design and manufacturing cost can be greatly reduced. The streamline tunnel type turbocharger has the beneficial effects that the characteristics of a closed rotating machine are fully utilized, the outer contour surfaces of the turbine and the gas compressor wheel serve as working surfaces of radial supporting bearings, the rotor has a high critical rotating speed, and the possibilityof resonance generation is greatly reduced.

Description

technical field [0001] The invention relates to the field of turbochargers, in particular to a streamlined tunnel turbocharger. Background technique [0002] The turbocharger matched with the engine can use the exhaust gas to drive the turbine and drive the coaxial compressor to boost the intake air, increase the intake air density of the engine, optimize vehicle power and economy, and reduce harmful gas emissions. [0003] Traditional open and semi-open blade structure impellers have tip clearances, and the number and thickness of blades are limited by the level of material technology and there is no room for optimization, which limits the further improvement of the aerodynamic performance of turbines and compressors. At the same time, the tip clearance leakage flow not only affects the aerodynamic performance of the compressor and turbine, but also affects the rotor dynamics and reliability; the thinner blade has poor structural strength, which contradicts the increase in ...

Claims

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Application Information

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IPC IPC(8): F02B37/00F01D5/04F01D25/24F01D25/00F01D25/16F04D29/28F04D29/42F04D29/02F04D29/059
CPCF01D5/048F01D25/005F01D25/16F01D25/24F02B37/00F04D29/023F04D29/059F04D29/284F04D29/4206Y02T10/12
Inventor 黄若高泽蒋秀峰
Owner 萍乡北京理工大学高新技术研究院
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