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Independent measuring structure for air leakage of compressor end and turbine end of turbocharger

A turbocharger and compressor technology, which is applied in the direction of machines/engines, mechanical equipment, engine components, etc., can solve the problem of poor pertinence in the measurement of turbocharger air leakage, and achieve the effect of improving the sealing performance

Active Publication Date: 2019-11-15
CHINA NORTH ENGINE INST TIANJIN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention aims to propose an independent measurement structure for the air leakage at the compressor end and the turbine end of the turbocharger, so as to solve the problem of poor pertinence in the air leakage measurement of the turbocharger

Method used

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  • Independent measuring structure for air leakage of compressor end and turbine end of turbocharger
  • Independent measuring structure for air leakage of compressor end and turbine end of turbocharger
  • Independent measuring structure for air leakage of compressor end and turbine end of turbocharger

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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0021] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides an independent measuring structure for air leakage of a compressor end and a turbine end of a turbocharger. The independent measuring structure comprises an oil sealing cover, acompressor dorsal disk, a bearing body and a draft tube, wherein the bearing body, the oil sealing cover and the compressor dorsal disk are sequentially mounted on a central shaft of the turbochargerfrom right to left, the turbine end is arranged at the right end of the bearing body, the compressor dorsal disk is connected to the compressor end, a sealing structure is arranged at the outer edgebetween the compressor dorsal disk and the oil sealing cover, a sealing passage is arranged in the position between the compressor dorsal disk and the oil sealing cover, a flow guiding hole is formedin the outer edge of the oil sealing cover, one end of the draft tube is connected to the flow guiding hole, the other end of the draft tube is connected to an air flow meter, an oil return flange onthe bearing body is connected to a turbocharger air leakage measuring device. The independent measuring structure has the beneficial effects that the oil sealing cover, a shaft sealing sleeve and a seal ring are additionally arranged on a typical supercharger structure, and gas leaked by a compressor is separated from gas leaked by a turbine, so that independent measurement of the air leakage at the compressor end and the air leakage at the turbine end is realized.

Description

technical field [0001] The invention belongs to the technical field of power machinery detection, and in particular relates to an independent measurement structure for air leakage at the compressor end and the turbine end of a turbocharger. Background technique [0002] Piston ring seals are commonly used in automotive turbochargers at present. Its function is to prevent the gas in the air flow channel from leaking to the oil return chamber of the bearing, and also to prevent the lubricating oil from leaking to the air flow channel. There is a certain fit gap in this sealing structure, and a certain amount of gas leakage will occur during normal operation, and the leakage is allowed within a certain limit value. [0003] Unreasonable seal design or process, or increased seal gap caused by wear and tear will cause a decrease in sealing performance, which will lead to deterioration of matching engine emissions, economical decline, and in severe cases, it will affect the normal...

Claims

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Application Information

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IPC IPC(8): F02B37/00F02B39/00F04D29/08F04D29/40
CPCF02B37/00F02B39/00F04D29/083F04D29/403Y02T10/12
Inventor 吴新涛胡力峰邢雪赵力明潘丽丽
Owner CHINA NORTH ENGINE INST TIANJIN
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