US 12,359,596 B2
Retention apparatus for wire mesh arrangement
Derek M. Larsen, Mound, MN (US); Todd R. Taubert, St. Paul, MN (US); Nathaniel I. Iverson, Hopkins, MN (US); William J. Baird, Prior Lake, MN (US); Mark T. Brandl, Ham Lake, MN (US); and David D. Rowley, Minnetonka, MN (US)
Assigned to Donaldson Company, Inc., Bloomington, MN (US)
Appl. No. 17/610,355
Filed by Donaldson Company, Inc., Bloomington, MN (US)
PCT Filed May 8, 2020, PCT No. PCT/US2020/032079
§ 371(c)(1), (2) Date Nov. 10, 2021,
PCT Pub. No. WO2020/231801, PCT Pub. Date Nov. 19, 2020.
Claims priority of provisional application 62/846,197, filed on May 10, 2019.
Prior Publication US 2022/0235687 A1, Jul. 28, 2022
Int. Cl. F01N 3/20 (2006.01); B01D 53/94 (2006.01); F01N 3/28 (2006.01)
CPC F01N 3/2066 (2013.01) [B01D 53/94 (2013.01); F01N 3/2803 (2013.01); F01N 3/2892 (2013.01); F01N 2610/1453 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A mixer assembly for an exhaust flow conduit having a longitudinal axis, the mixer assembly comprising:
a doser boss mounted to the exhaust flow conduit;
a mixer arrangement disposed within the exhaust flow conduit, the mixer arrangement including a deflection body defining a deflection passage and a perforated conduit coupled to the deflection body upstream of the deflection passage, the perforated conduit extending along a conduit axis that is aligned with the doser boss and with the deflection passage; and
a mesh arrangement disposed at the deflection passage, the mesh arrangement including a mesh puck and a retaining arrangement that maintains the mesh puck in an axially compressed state, the mesh puck being compressed along a mesh axis when in the axially compressed state, the mesh axis being coaxial with the conduit axis,
wherein the retaining arrangement maintains a compression force of at least 50 pound-force.