Gearbox shift lock
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United States of America Patent
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Jul 11, 2017
Grant Date -
N/A
app pub date -
Mar 30, 2015
filing date -
Mar 30, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A fluid powered circuit for a gearbox and a method for protecting a gearbox are disclosed. The fluid powered circuit includes a control circuit operatively connected to a clutch engagement circuit. The fluid powered circuit is selectively operable to either flow a fluid from a fluid supply source to the clutch or vent the fluid to the atmosphere. The method for protecting the gearbox includes flowing the fluid from the fluid supply source to the fluid powered circuit, measuring the speed of the shaft, measuring the pressure of the fluid entering the clutch engagement circuit, and flowing the fluid from the fluid powered circuit to the clutch upon detecting one or more conditions.
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