Interaxle differential

Details Interaxle differential Interaxle differential

1990-05-17

1991-11-26

Herrmann, Allan D.

Planetary gear transmission systems or components

Differential planetary gearing

Spur gear differential

180249, F16H 3708

Patent

active

050679350

ABSTRACT:
An interaxle differential includes a central drive member that continuously connects an input shaft with a first output shaft, a clutch disk normally connecting the central drive member with a second output shaft, a rotational velocity responsive device operable from a deactivated position to an activated position for disengaging the clutch disk when the second output shaft overruns the first output shaft by a given value, a fail safe device for biasing the velocity responsive device toward its deactivated position, a first device for displacing the velocity responsive device toward the activated position, and an override device for selectively disengaging the clutch disk. In a second embodiment, the rear clutch disk is operable by the operator to disconnect the interaxle differential from the first output shaft, thereby to avoid the trapping of torque within the interaxle differential when the vehicle is maneuvered downhill in a turn.

REFERENCES:
patent: 1351084 (1920-08-01), Winther
patent: 1717784 (1925-11-01), Johnson
patent: 3295625 (1967-01-01), Ordorica et al.
patent: 3378093 (1968-04-01), Hill
patent: 3451496 (1969-06-01), Myers
patent: 3505902 (1970-04-01), Myers
patent: 4846010 (1989-07-01), Fujikawa et al.
patent: 4873892 (1989-10-01), Ohkubo
Society of Automotive Engineers Technical Bulletin 700724, "Concepts and Applications of Interaxle Differentials", Jerry L. Hart, Sep. 14, 1970.

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