US 12,467,398 B2
Exhaust gas sensor assembly
Shrevatsan Venkatesan, Canton, MI (US); William Russell Goodwin, Farmington Hills, MI (US); Arron Kowalczyk, Newport, MI (US); Lakshmana Gummadi, Northville, MI (US); and Nicole Pamela Herrera Gutierrez, Mexico City (MX)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US)
Filed on Jan. 25, 2021, as Appl. No. 17/157,063.
Prior Publication US 2022/0235688 A1, Jul. 28, 2022
Int. Cl. F01N 11/00 (2006.01); F01N 13/00 (2010.01); G01D 11/24 (2006.01); G01N 1/22 (2006.01); G01N 27/407 (2006.01); G01N 33/00 (2006.01)
CPC F01N 11/00 (2013.01) [F01N 13/008 (2013.01); G01D 11/245 (2013.01); G01N 33/0037 (2013.01); F01N 2560/026 (2013.01); G01N 1/2252 (2013.01); G01N 27/4078 (2013.01); G01N 33/0036 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An exhaust gas sensor assembly for a vehicle comprising:
a sampling tube including a proximal end connectable to a housing and a distal end configured to be suspended with a cavity of the housing, the tube defining a hollow center, inlets vertically arranged on an upstream side of the tube, an outlet on a downstream side of the tube, and an exhaust gas flow path extending from the inlets, through the hollow center, and to the outlet;
an exhaust gas sensor disposed in the hollow center at the proximal end, the sensor including a cylindrical shell having inlet openings and outlet openings located closer to the distal end than the inlet openings and a sensing element disposed in the shell such that the shell completely encircles the sensing element and such that the sensing element extends beyond the outlet openings, wherein the exhaust gas flow path extends through the inlet openings, across the sensing element, and out the outlet openings, wherein one of the outlet openings of the sensor and the outlet of the sampling tube are located at a same longitudinal position of the sampling tube such that a portion of the exhaust gas flow path exiting the one of the outlet openings flows directly and unimpededly out of the sampling tube through the outlet of the sampling tube due to longitudinal alignment of the one of the outlet openings and the outlet of the sampling tube; and
a flow guide disposed in the hollow center between the inlets and the sensing element and configured to redirect the flow path through a passageway defined between the tube and the flow guide.