Urea injection systems valves

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United States of America Patent

PATENT NO 9938875
SERIAL NO

15213744

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Abstract

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Apparatuses and methods for urea dosing of an exhaust after treatment system are disclosed. Exemplary apparatuses include a chamber configured to receive pressurized gas at a first inlet, receive urea solution at a second inlet and provide a combined flow of pressurized gas and urea to an outlet, flow passage extending from the first inlet to a seating surface, and a valve member configured to move between an open position in which the valve member is spaced apart from the seating surface and a closed position in which the valve member contacts the seating surface. As the valve member moves from the open position to the closed position, the valve member contacts the seating surface at a first location and wipes an area of the seating surface extending from the first location in a direction toward the flow passage.

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Patent Owner(s)

Patent OwnerAddress
CUMMINS EMISSION SOLUTIONS INC500 JACKSON STREET COLUMBUS IN 47201

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anthis, John Columbus, US 12 47
Birari, Yogesh V Pune, IN 2 9
Burke, James F Columbus, US 7 40
Chakrabarti, Joydeep Columbus, US 6 23
Heichelbech, John Columbus, US 10 55
Holl, Stephen Columbus, US 5 21
Muntean, George Columbus, US 6 37
Myer, Andrew Greenwood, US 17 83
Ponnathpur, Chetan Columbus, US 11 86
Schmidt, Niklas Madison, US 13 17
Simmons, Brandon Columbus, US 11 22

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