12-Gang-Schaltgetriebe in 2x3x2-Bauweise


The invention relates to a 12-speed gear box for utility vehicles, with a 2x3x2 construction. The two gear steps of the front-mounted section (GV) are shifted manually, alternately for each gear step of the pneumatically shifted main section (GH) in order to obtain a logical shifting diagram with alternate shifting movements back and forth and a continuously increasing or decreasing gear sequence. The gear steps of the main section (GH) are activated pneumatically when there is a transition from one gear step to the next by means of activating devices (S1, S2, S3). The transition from the slow step (L) to the fast step (S) of each gear step is automatically carried out pneumatically by the rear-mounted section (GP).




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Patent Citations (2)

    Publication numberPublication dateAssigneeTitle
    DE-2854747-A1June 21, 1979Eaton CorpKlauen- oder zahnkupplungsanordnung und damit versehenes schaltgetriebe
    DE-3840403-A1July 27, 1989Iveco FiatMechanisches schaltgetriebe fuer nutzfahrzeuge

NO-Patent Citations (1)

    LOOMAN, Johannes: Zahnradgetriebe Grundlagen, Konstruktionen, Anwendungen in Fahrzeugen, 3. Auflage Springer-Verlag, Berlin Heidelberg New York 1996, S. 257-267 - ISBN-3-540-60336-0

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