Auxiliary drive for utility vehicle and method of operation ther

192 clutches and power-stop control – Clutch and brake – Sliding operation

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Details

192 12C, 192 7019, F16D 6704

Patent

active

061317144

ABSTRACT:
A power-take-off of a utility vehicle such as an agricultural tractor has a clutch (3) and a brake (18) to retain the output shaft against rotation when the clutch is disengaged. The invention provides a means of automatically disengaging the brake to permit rotation of the output shaft for the purpose of coupling an implement thereto. In one embodiment, the clutch and brake are engaged by fluid under pressure, and are disengaged by stopping the vehicle engine and thus allowing engine generated fluid pressure to decay.

REFERENCES:
patent: 2674356 (1954-04-01), Eason
patent: 2890773 (1959-06-01), Martindell
patent: 3000478 (1961-09-01), Carter
patent: 3698524 (1972-10-01), Schubert
patent: 4108291 (1978-08-01), Zenker
patent: 4399715 (1983-08-01), Dziuba et al.
patent: 4567971 (1986-02-01), Hille et al.
patent: 4613024 (1986-09-01), Irikura et al.
patent: 4926989 (1990-05-01), Bruntz

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