Diesel exhaust fluid pump system and method

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United States of America Patent

PATENT NO 12203485
SERIAL NO

17902309

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The present invention relates to a diesel exhaust fluid (DEF) pump, DEF pump system and method for use of a DEF pump in cleaning the exhaust from diesel and diesel-electric engines. The DEF pump includes a plurality of gears, a pump housing, wear plate, pump body cover, a pump body insert, inverter assembly, inverter housing, speed sensor, pressure sensor, controller area network (CAN) connector, inverter cooling pipe, mounting feet or base plate, inlet, outlet, lifting ring, power connector, and motor. The DEF pump system includes a DEF pump, a main DEF tank, a dosing tank, a selective catalytic reduction (SCR) system, a flow control valve, and a relief valve. The DEF pump pulls DEF from a large tank, pumps DEF to a smaller tank injects DEF from the small tank into the exhaust stream where some of the DEF is consumed, and circulates unused DEF back to the large tank.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
PARAGON PRODUCTS LLC4475 GOLDEN FOOTHILL PARKWAY EL DORADO HILLS CA 95762

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cerrona, Jonathan El Dorado Hills, US 4 26

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