Dana Corporation

Philip J Weis

Richard A Cook

David C Kaminski

James E Smith

An adaptor plate assembly for use in interfacing a transmission gear housing having a standard bolt/hole pattern with a power takeoff unit having a non-standard bolt/hole pattern is disclosed. An adaptor plate is positioned between the gear housing and the power takeoff unit. The adaptor plate has passageways in alignment with standard apertures in the gear housing and with openings in the power takeoff unit. Guide and support fasteners having guide heads are initially positioned in ones of the passageways of the adaptor plate and in the housing apertures. The power takeoff unit is initially guided and supported by the guide heads. Securement fasteners are then used to complete the connection of the power takeoff unit to the adaptor plate and the gear housing.

Power takeoff assembly

The present invention provides a speed control system for use in maintaining the rotational speed of an output shaft of a power takeoff unit within a predetermined range. A central control unit receives signals indicative of the speed of the input gear and, in response to the received signals engages and disengages the output shaft of the power takeoff unit. The central control unit also disengages the output shaft if the system's voltage levels drop below a preset minimum.

Power takeoff speed control assembly

A power take-off (PTO) unit with parallel input and output shafts mounted in a PTO case with the input shaft adapted to be piloted in the countershaft of a transmission and the PTO case adapted to be secured to the transmission case. An input gear is slidably splined on the input shaft adjacent its piloted end, and the input shaft also carries an input sprocket. On the output shaft is rotatably mounted an output gear which is geared to the input gear and an output sprocket drivingly connected to the input sprocket by a chain drive. A clutch carried by the output shaft alternately clutches the output gear or output sprocket to the output shaft while the input gear has a clutch portion thereon and is slidable to engage a clutching member carried by the countershaft to drivingly connect the countershaft to the PTO input shaft.

Growing community of inventors

Sylvania, OH, United States of America

Philip J Weis