Self adjusting concave clearance system
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United States of America Patent
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May 29, 2018
Issued Date -
N/A
app pub date -
Oct 31, 2014
filing date -
Oct 31, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
An agricultural combine (102) includes a rotor (114), a concave (116), a force sensor (134) to indicate the force applied to a crop mat located between the rotor and the concave, a position sensor (132) to indicate the size of a gap (130) between the rotor (114) and the concave (116), an actuator (122, 124) to position the concave (116) with respect to the rotor (114), and an ECU (144) coupled to the sensors (132, 134) and the actuator (122, 124). The ECU (144) contains an economic operating curve (154, 156, 158) that relates the force to the size of the gap. The ECU (144) is configured to receive a signal from the force sensor (134) and a signal from the position sensor (132), and based upon those signals, to control the actuator (122, 124) to change the force and the size of the gap (130) to a point on the economic operating curve (154, 156, 158).
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