Patent ID: 7713185
Filing Date: 2010-05-11
Classification: B04B,F01M

Abstract:
1. A free-jet centrifuge for cleaning the lubricating oil of an internal combustion engine, comprising: a housing which is closed by a removable cover, a rotor rotatably arranged in the housing and with channels for feeding pressurized lubricating oil to be cleaned and for removing cleaned pressureless lubricating oil, the rotor being of split design with a drive part having at least one recoil nozzle and a dirt trapping part having a dirt collection area, the drive part configured to allow a first partial lubricating oil flow therethrough and the dirt trapping part configured to allow a second partial lubricating oil flow therethrough, the drive part and the dirt trapping part being configured with positive-interaction torque transmission means which are engageable by axially slipping the dirt trapping part onto the drive part and disengageable by axially pulling the dirt trapping part off from the drive part, the dirt trapping part being separable from the drive part for disposal or cleaning, and means located in the centrifuge which, in the operation of the centrifuge, serve to at least restrict the axial mobility of the dirt trapping part relative to the drive part and which are one of ineffective and detachable when the cover is removed, wherein the drive part extends from a bottom towards a top into the dirt trapping part or entirely through it, the drive part comprises all of the parts necessary for a rotatable bearing of the rotor, and the drive part is securely positioned against axial removal with the cover in an open position.