Chain drive, particularly for internal combustion engine

Kettentrieb, insbesondere für Nebenantriebe von Brennkraftmaschinen

Abstract

The drive comprises sprockets (2,3) on shafts (4,5) having different inertia weights. A guide (7) or damper (8) is provided for one run (6',6") of the chain, and the sprocket (3) on the shaft (5) with the lesser inertia weight incorporates a damper (10) elastic in the radial direction. This damper oscillates radially in antiphase to the oscillation generated by the polygon effect of the sprocket (2) on the shaft with greater inertia weight, and towards the line (9) joining the two shafts. It can incorporate an annular flywheel (11) coupled via an annular rubber or elastomer spring (12) to the sprocket, so as to turn with it. Its material has a high damping effect over a wide frequency band. The flywheel can be centred in the sprocket via an elastic corrugated ring.

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Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    DE-3739336-A1June 01, 1989Goetze AgInternal combustion engine with a vibration-damped camshaft drive
    DE-4341370-A1June 09, 1994ValeoDrehschwingungsdämpfer, insbesondere für Kraftfahrzeuge
    DE-617204-CAugust 14, 1935Maschf Augsburg Nuernberg AgSchwingungsdaempfer fuer Wellen, insbesondere fuer Kurbelwellen von Brennkraftmaschinen
    US-4848183-AJuly 18, 1989Simpson Industries, Inc.Camshaft damper

NO-Patent Citations (0)

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Cited By (4)

    Publication numberPublication dateAssigneeTitle
    DE-10244734-B4January 17, 2013Carl Freudenberg KgKettentrieb
    DE-19852538-C1April 27, 2000Mannesmann AgShort chain hoist has chain looped over several pulley wheels with at least one of the wheels on a damped mounting
    US-6286816-B1September 11, 2001Mannesmann AgChain hoist
    WO-03036129-A1May 01, 2003Burkhard GrobbelLink chain drive