Agco Corporation

Agco Gmbh & Co.

Herbert Leonhart

Hans-Peter Nett

Robert Honzek

Richard Heindl

Konrad Guggemos

Guenther Groeger

Kondrad Guggemos

Günther Gröger

An axial piston machine, in particular an axial piston pump, of the swashplate or bent axis type, is described, wherein a fixed control plate (), which comprises at least one control passage () consisting of a plurality of control passage sections () separated from each other by bridges (), is arranged between a cylinder drum, rotatable in both directions of rotation, and a fixed housing. The object of the invention is to design the control plate of an axial piston machine in such a way that damage by cavitation to the structural parts is prevented over the entire extent of the control passages for the supply and removal of the operating fluid. For this purpose the at least one control passage () in the region at least of one bridge () is provided with a pressure balance opening () connecting the surfaces of the control plate () with one another.

Axial piston pump or motor of the swashplate or bent axis type

A transmission coupling assembly for absorbing axial and/or angular displacement between an internal combustion engine and a downstream gear train comprises a resilient vibration damper (3;24) secured to the flywheel (1;26). A coupling member (4;23) secured to the vibration damper is rotationally coupled to a coupling shaft (7;21) by means of interlocking splines, the splines (4a) of the coupling member being substantially straight and the splines (5a) of the coupling shaft being crowned or spherically curved. At the other end of the coupling shaft (7;21) a similar splined connection is made to the input shaft (8) of the downstream gear train. Lubrication is provided at the splined connection between the coupling shaft and the input shaft of the gear train, with a Z-cross section seal extending between the coupling shaft and the gearbox casing to prevent leakage of lubricant fluid.

Transmission coupling assembly

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Marktoberdorf, Germany

Herbert Leonhart