Because the rated working speed of the Cummins engine supercharger is more than 130,000 rpm, and it is at the outlet of the exhaust manifold, the temperature is extremely high (above 800°C), and the inlet and exhaust pressure is also large, high temperature, high pressure and high speed. Therefore, the requirements for lubrication, cooling and sealing of the supercharger are relatively high. In order to ensure the service life of the supercharger of Cummins engine generator, it is necessary to ensure the lubrication and cooling of the turbocharger floating bearing.
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