End of stroke detection for plunger velocity correction

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United States of America Patent

PATENT NO 9989048
APP PUB NO 20170030344A1
SERIAL NO

14809861

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Abstract

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A method for controlling a stroke velocity in a pump includes using a sensor to detect a start of a pump stroke and an end of the pump stroke. A stroke time is calculated, the stroke time being a time period between the start of the pump stroke and the end of the pump stroke. The stroke velocity is calculated based on a stroke length and the stroke time. The stroke velocity is compared to a reference stroke velocity. A hydraulic supply pressure to the pump is increased if the calculated stroke velocity is less than the reference stroke velocity, and the hydraulic supply pressure is decreased if the calculated stroke velocity is more than the reference stroke velocity.

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Patent Owner(s)

Patent OwnerAddress
CATERPILLAR INCA DE CORP PEORIA IL

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bean, Sunil J Peoria, US 12 33
Brown, Cory A Peoria, US 43 232
Steffen, Joshua W El Paso, US 22 123
Stockner, Alan R Metamora, US 92 949

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