US 12,345,188 B2
Exhaust structure having rib
Vikas Sheth, Edwards, IL (US); and Nataraj Srinivasan, Chennai (IN)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on Mar. 12, 2024, as Appl. No. 18/602,548.
Claims priority of provisional application 63/489,825, filed on Mar. 13, 2023.
Prior Publication US 2024/0309793 A1, Sep. 19, 2024
Int. Cl. F01N 13/10 (2010.01); F02B 37/02 (2006.01); F02B 39/00 (2006.01)
CPC F01N 13/10 (2013.01) [F02B 37/02 (2013.01); F02B 39/00 (2013.01); F01N 2260/10 (2013.01); F01N 2260/18 (2013.01); F01N 2340/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An exhaust structure for an exhaust manifold associated with an engine, the exhaust manifold extending along a longitudinal axis, the exhaust structure comprising:
a body including:
a first inlet section of the exhaust structure, wherein the first inlet section is configured to be in fluid communication with a first set of cylinders of the engine to receive exhaust gas therefrom;
a second inlet section of the exhaust structure, wherein the second inlet section is configured to be in fluid communication with a second set of cylinders of the engine to receive exhaust gas therefrom;
an outlet section disposed in fluid communication with each of the first inlet section and the second inlet section to receive exhaust gas, wherein exhaust gas from the first inlet section and the second inlet section exit the exhaust structure through the outlet section, and wherein the outlet section includes a flange; and
a rib extending generally along the longitudinal axis and disposed on a surface of the outlet section, wherein the rib includes:
a first section having a first inclined surface;
a second section spaced from the first section and having a second inclined surface, wherein at least one of the first inclined surface or the second inclined surface is a generally flat surface; and
a third section disposed between the first section and the second section, the third section having a curved surface, wherein the curved surface is a concave surface that is directly connected to each of the first inclined surface and the second inclined surface, thereby connecting the first inclined surface to the second inclined surface.