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    • 4. 发明专利
    • DE502006005418D1
    • 2009-12-31
    • DE502006005418
    • 2006-08-03
    • CONTINENTAL TEVES AG & CO OHG
    • RODRIGUES AUGUSTODINKEL DIETERBRIESEWITZ RUEDIGERHINZ AXELVOGEL GUENTHERGREIFF UWELENZ RENEKOEHLER CHRISTOPH
    • F04B1/04F04B9/04F04B27/053F04B49/12
    • The invention relates to a pump or compressor unit of the displacement type, comprising an electric motor (2) with a drive shaft (4), which is rotatably mounted and engages with a housing (8). A gear (6) comprising at least two eccentric elements (18, 19) that can rotate in relation to one another is also provided, said gear converting a rotational displacement into a translational displacement. An elastic element (24), designed to provide a tension, is fixed between the eccentric elements (18, 19) in order to modify the effective cumulative energy value (e S ) of the eccentric elements, the latter (18, 19) being integrated into one another, with a radial outer eccentric segment (19) surrounding and engaging with a radial inner eccentric element (18). The quasi-linear relationship between the motor torque and the motor speed, which is predetermined by the construction, is overridden with the aid of a continuously variable gear mechanism. The cumulative energy value (e S ) of the eccentric elements on the driven side is varied in accordance with the braking torque. This enables a particularly cost-effective, compact unit comprising a cost-effective electric motor (2) to be produced. As the energy stored in the elastic elements (24) can be made available for other crank angles of rotation a, said energy is also temporarily stored and fed back into the system.