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A sealing device used between turbocharger turbine box and bearing body

A technology of turbocharger and sealing device, applied in machine/engine, leakage prevention, engine components, etc., can solve the problems of high cost, high requirements on positioning of related components and high matching accuracy

Active Publication Date: 2016-09-07
HUNAN TYEN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the above-mentioned sealing system introduces a spring as a biasing element, and the positioning and matching accuracy of related components are relatively high, it is relatively expensive to implement

Method used

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  • A sealing device used between turbocharger turbine box and bearing body
  • A sealing device used between turbocharger turbine box and bearing body
  • A sealing device used between turbocharger turbine box and bearing body

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Embodiment Construction

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will be combined with the above-mentioned appended Figure 1(a) ~ 1(c) , attached Figure 2(a)~2(c) And attached Figure 3(a) ~ 3(c) The sealing device used between the turbine case and the bearing body of the new turbocharger of the present invention will be further described in detail.

[0022] It should be noted that expressions such as "first" and "second" used in the embodiments of the present invention are all used to distinguish two entities with the same name but different parameters or parameters that are not the same. It can be seen that "first"" The second "is just for the convenience of expression, and should not be understood as a limitation on the embodiment of the present invention, and the subsequent embodiments will not describe it one by one.

[0023] In accompanying drawings 1 to 3, reference numeral 1 represents a turbine box, reference nu...

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Abstract

The invention discloses a sealing device used between a turbine volute and a bearing body of a turbocharger of an engine. The sealing device is arranged on an installation locating face III of the turbine volute and made of a metal material having elasticity, ductility and a certain thickness. Under the condition that the sealing device is arranged between the bearing body and the turbine volute, before a hot end screw is pre-tightened, a contact face I between the bearing body and the turbine volute during assembly and an installation face II of the turbine volute are isolated from each other and not in contact; and after the hot end screw is pre-tightened, the sealing device elastically deforms, and a new attachment face, namely a sealing face IV is formed between the sealing device and the installation locating face III of the turbine volute. In this way, potential air leakage danger between the turbine volute and the bearing body is weakened or even eliminated effectively, and the problems, such as low performance, caused by the portion between the turbine volute and the bearing body when the turbocharger is in work are finally eliminated.

Description

technical field [0001] The invention relates to the technical field of engine turbochargers, in particular to a sealing device used between a turbocharger turbine box and a bearing body. Background technique [0002] With the country's requirements for energy saving and emission reduction and the increasingly stringent emission regulations, supercharging technology has become the most effective technical measure for reducing emissions. With the improvement of emission requirements, the traditional turbocharger technology can no longer meet the emission requirements of the engine, especially for the low-speed performance of the engine, the traditional turbocharger technology has problems such as large emission pollution and high fuel consumption rate. In order to solve this technical problem, at present, the engine uses technologies such as common rail to meet the emission requirements, so the variable geometry turbocharging technology (VGT or VNT) is proposed. As an exhaust...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D11/00
Inventor 王张飞潘航宇兰新潘伟
Owner HUNAN TYEN MACHINERY