Streamline tunnel type turbocharger adopting external contour type air bearing

A turbocharger, air bearing technology, applied in the components of pumping devices for elastic fluids, non-variable displacement pumps, machines/engines, etc., can solve the problem of not deep, no application examples, streamline tunnel There are few problems such as less research on turbocharger

Inactive Publication Date: 2020-12-18
科诺泰博(北京)科技有限公司
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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 turbochargers, and there are no application examples in engineering practice

Method used

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  • Streamline tunnel type turbocharger adopting external contour type air bearing
  • Streamline tunnel type turbocharger adopting external contour type air bearing
  • Streamline tunnel type turbocharger adopting external contour type air bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, a streamlined tunnel turbocharger adopting an outer profile air bearing includes a streamlined tunnel turbine 1, a streamlined tunnel compressor wheel 2, a turbine shell 3, a compressor shell 4, and an intermediate shell 5 And the shaft 6; the streamline tunnel turbine 1 and the streamline tunnel compressor wheel 2 are respectively installed on both ends of the shaft 6 to form a supercharger rotor.

[0028] The streamline tunnel turbine 1 and the streamline tunnel compressor wheel 2 are closed rotating machines, and the structures of the two can be exactly the same, usually consisting of dozens of streamline tunnels 8, the streamline tunnels 8 Including the centerline of the streamline tunnel, the centerline of each streamline tunnel is a three-dimensional curve, and the normal sections of the streamline tunnels 8 are one of circular and / or elliptical, when each of the streamline tunnels 8 When the normal section is an ellipse, the major axis...

Embodiment 2

[0034] Such as figure 2 As shown, compared with Embodiment 1, the supercharger rotor has an outer profile thrust pressure air bearing 11 and a traditional oil-impregnated thrust bearing assembly 12 double thrust bearings to balance the axial load. In this embodiment, the outer profile thrust is canceled Compressed air bearings only use the traditional oil-impregnated thrust bearing assembly 12 to balance the axial load. This method is suitable for the situation where the traditional oil-impregnated thrust bearing assembly 12 has sufficient supporting force, reduces the number of parts and reduces the cost.

Embodiment 3

[0036] Such as image 3 As shown, compared with Embodiment 1, the supercharger rotor has an outer profile thrust pressure air bearing 11 and a traditional oil-impregnated thrust bearing assembly 12 double-thrust bearings to balance the axial load. In this embodiment, the traditional oil-impregnated thrust is cancelled. For the bearing assembly, only the outer contour thrust pressure air bearing 11 is used to balance the axial load. This method is suitable for the case where the outer contour thrust pressure air bearing 11 has sufficient supporting force, and greatly reduces the complexity of the shafting structure and the middle shell 5. Reduce processing difficulty and cost.

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PUM

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Abstract

The invention discloses a streamline tunnel type turbocharger adopting an external contour type air bearing. The streamline tunnel type turbocharger comprises a streamline tunnel type turbine, a streamline tunnel type compressor wheel, a turbine shell, a compressor casing, a middle shell and a shaft, wherein the streamline tunnel type turbine and the streamline tunnel type compressor wheel are arranged at the two ends of the shaft respectively in order to form a turbocharger rotor. The turbine and the compressor wheel are both of a streamline tunnel type in structure, and compared with a vanetype structure, the turbine and the compressor wheel are higher in strength and not prone to damage; and due to higher structural strength, the material selection range is widened, the cost is reduced, and the weight is controlled.

Description

technical field [0001] The invention relates to the field of turbochargers, in particular to a streamlined tunnel turbocharger using an outer profile air bearing. 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] For the turbine end, it needs to have a high high-temperature endurance strength limit and good fatigue and creep resistance, and the material needs to have good casting performance and structural stability at high temperature; for the compressor end, it needs to be light in weight , high strength, easy processing, high efficiency and long life. However, the traditional open or semi-open impeller structure limits the performance improvement of the turbine and compressor to a certain extent. On the one hand, thinner bla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/00F01D5/04F01D25/16F04D29/28F04D29/057
CPCF01D5/048F01D25/16F02B37/00F04D29/057F04D29/284Y02T10/12
Inventor 黄若郭文杰高泽黄仕豪
Owner 科诺泰博(北京)科技有限公司
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