Compressor end sealing sleeve of turbocharger
A compressor end seal and turbocharger technology, which is applied in the direction of machines/engines, mechanical equipment, liquid fuel engines, etc., can solve the problems of hidden oil leakage and low negative pressure resistance, and achieve oil leakage prevention and negative pressure resistance. Strong pressure capacity and the effect of reducing the failure rate of oil leakage
Inactive Publication Date: 2016-01-13
HUNAN TYEN MACHINERY
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Problems solved by technology
It solves the problem of oil leakage hidden danger and low negative pressure resistance of the existing turbocharger compressor end seal sleeve under negative pressure state
Method used
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Embodiment 1
[0024] Such as figure 2 , 3 Shown: the turbocharger compressor end seal sleeve, including the seal sleeve 1, which is set on the rotor shaft 2, one end is the A end in contact with the impeller 3, and the other end is the B end close to the bearing body 4, from the A end An oblique oil throwing pan 11, a middle oil throwing pan 12 and a terminal oil throwing pan 14 arranged at the end of the B end are sequentially arranged on the outer edge surface of the B end. The oblique oil flinger 11 is provided with an annular inclined surface 111 on the end surface near the A end. A first oil throwing groove 13 is provided between the oblique oil throwing pan 11 and the middle oil throwing pan 12 . A second oil throwing groove 15 is provided between the end oil throwing pan 14 and the middle oil throwing pan 12 .
[0025] Both end faces of the end oil throwing pan 14 and the middle oil throwing pan 12 are perpendicular to the axis m of the inner hole of the sealing sleeve 1 .
[00...
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A compressor end sealing sleeve of a turbocharger comprises a sealing sleeve, wherein the sealing sleeve is mounted on a rotor spindle in a sleeving manner, one end of the sealing sleeve serves as an end A in contact with an impeller, the other end of the sealing sleeve serves as an end B close to a bearing body, a bevel angle oil flinger and a middle oil flinger are arranged on a peripheral surface from the end A to the end B in sequence, and a first oil flinger is arranged between the bevel angle oil flinger and the middle oil flinger. The compressor end sealing sleeve of the turbocharger, provided by the invention, has the advantages that negative pressure resisting capability is strong, and the oil-leakage malfunction rate of the turbocharger is lowered. A bevel angle oil flinger is arranged at one end, close to the impeller, of the sealing sleeve, an annular inclined plane is arranged on the bevel angle oil flinger, the annular inclined plane is matched with the annular inclined plane at the opening part of the center hole of an oil sealing cover, a conic ring gap with an opening facing to the end B of the sealing sleeve is formed, during the rotating of the rotor spindle, oil fluid accumulated in the conic ring gap can be thrown away towards one end far away from the impeller, back flowing to the conic ring gap again can be prevented, since no oil fluid is accumulated in the conic ring gap, no oil fluid can permeate to the position of a sealing ring between the sealing sleeve and the oil sealing cover naturally, and oil leakage can be effectively prevented.
Description
technical field [0001] The invention relates to a sealing component at the compressor end of a turbocharger, in particular to a sealing sleeve at the compressor end of a turbocharger. Background technique [0002] Turbocharging technology has been widely used in the field of diesel engines. It is a technology that converts the residual energy in the exhaust of the engine into the effective power of the engine. This technology can not only improve the power performance of the engine, improve the fuel economy of the engine, but also reduce the harmful components in the exhaust gas emitted by the engine, and has the effects of energy saving and environmental protection. [0003] With the continuous development and progress of supercharging technology, and the end users' higher and higher sealing requirements for superchargers, there are more and more reports of supercharger oil leakage failures in the market, and the recent rapid development of gasoline engine supercharging tec...
Claims
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IPC IPC(8): F04D29/10F04D29/063
Inventor 欧永健王星徐金朱光前刘麟
Owner HUNAN TYEN MACHINERY