Electric control of a harvester fan

Details Electric control of a harvester fan Electric control of a harvester fan

1993-02-24

1994-02-15

Bui, Thuy M.

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

F16H 700

Patent

active

052862330

ABSTRACT:
The air system on a harvester includes a fan with a remotely actuatable belt tightener assembly controlled by an electric acme thread actuator. A control circuit connected to the actuator includes a fan control switch and an engine speed switch for preventing fan actuation above a preselected engine speed. The actuator retains the belt tightener in the engaged position when the engine is switched off so that belt inspection and tension adjustments can be made easily. The tightener assembly includes simple tension indicating and adjusting structure for providing easy and accurate belt adjustments when the engine is off.

REFERENCES:
patent: 4094205 (1978-06-01), Cook
patent: 4324552 (1982-04-01), Boushek et al.
patent: 5176581 (1993-01-01), Kumm

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