Rotating shaft lubricating structure of turbocharger

Abstract

The invention discloses a rotating shaft lubricating structure of a turbocharger. The rotating shaft lubricating structure comprises a rotating shaft, a shaft seal adapter sleeve and a thrust bearing;the shaft seal adapter sleeve is arranged between the rotating shaft and an intermediate shell of the turbocharger; and the thrust bearing is arranged on the shaft seal adapter sleeve, wherein an oilstorage ring is arranged on the oil wedge face of the thrust bearing and internally provided with a plurality of oil storage grooves. According to the rotating shaft lubricating structure of the turbocharger, an oil storage groove structure is additionally arranged in the range of the oil wedge face of the thrust bearing, so that the oil storage amount between the thrust bearing and the shaft seal adapter sleeve is increased, and accordingly, the rotating shaft rotates more smoothly, and heat generated by friction is reduced; and lubricating oil circulates more smoothly among parts, thus accumulation of sundries and impurities is reduced, and the loss of the thrust bearing and the shaft seal adapter sleeve is reduced.

Description

technical field [0001] The invention relates to a turbocharger, in particular to a lubricating structure for a rotating shaft of the turbocharger. Background technique [0002] A turbocharger is actually an air compressor that compresses air to increase intake air. It uses the inertial momentum of the exhaust gas discharged from the engine to drive the turbine in the turbine chamber, and the turbine drives the coaxial impeller, which presses the air sent by the air filter pipe to pressurize it into the cylinder. When the engine speed increases, the exhaust gas discharge speed and the turbine speed also increase synchronously, and the impeller compresses more air into the cylinder. The pressure and density of the air increase to burn more fuel. Increase the amount of fuel and adjust the engine speed accordingly. The output power of the engine can be increased. [0003] At present, only a shaft seal sleeve and a thrust bearing are installed between the rotating shaft and the...

AI Technical Summary

Problems solved by technology

[0003] At present, only a shaft seal sleeve and a thrust bearing are installed between the rotating shaft and the intermediate housing of the existing turbocharger as a seal. In the specific application process, the lubrication between the shaft seal sleeve and the thrust bearing The effect is poor, the two wear out faster, and the service life is short

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