Exhaust outlet elbow bolt pattern

Patent metadata

Field	Value
Publication number	US-9874136-B2
Application number	US-201414581635-A
Country	US
Kind code	B2
Filing date	Dec 23, 2014
Priority date	Dec 23, 2014
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

An exhaust outlet elbow includes: a body having an outer wall and an interior wall, the interior wall defining, at least in part, an interior chamber; a connecting surface located above the interior chamber; and an array of threaded holes located about the connecting surface, wherein the threaded holes terminate in the body. A method of manufacturing an exhaust outlet elbow includes the steps of: forming a body having an outer wall and an interior wall, the interior wall defining, at least in part an interior chamber; forming an connecting surface located between the interior and outer walls; and forming an array of threaded holes in the connecting surface.

First claim

What is claimed is:

1. An exhaust outlet elbow comprising:
a body having an outer wall and an interior wall, the interior wall defining, at least in part, an interior chamber;
a coolant chamber located between the outer wall of the body and the interior wall;
a first and second exhaust inlets providing a fluid connection through the outer wall and interior wall to the interior chamber, wherein the first and second exhaust inlets are separated by a rib having a scalloped portion;
a connecting surface located adjacent to the interior chamber, wherein the connecting surface is bounded by the interior wall and the outer wall; and
an array of threaded holes located about the connecting surface, wherein the threaded holes terminate in the body.

2. The exhaust outlet elbow of claim 1 , further comprising a waste gate housing integrated into the body.

3. The exhaust outlet elbow of claim 2 , further comprising a second array of threaded holes located about a second connecting surface located on the waste gate housing, wherein the second array of threaded holes terminate in the waste gate housing.

4. The exhaust outlet elbow of claim 1 , wherein the array of threaded holes includes 12 threaded holes.

5. The exhaust outlet elbow of claim 1 , wherein the holes in the array of threaded holes are equally spaced in a circular pattern.

6. The exhaust outlet elbow of claim 1 , wherein the connecting surface is a relatively flat, annular, surface located between the outer wall and the interior wall.

7. The exhaust outlet elbow of claim 1 , wherein the body is cast and the array of threaded holes are located in the cast body.

8. The exhaust outlet elbow of claim 1 , wherein the array of threaded holes are arranged and dimensioned to correspond to holes located in a conduit configured to attach to the connecting surface.

9. The exhaust outlet elbow of claim 1 , wherein the coolant chamber extends to a position proximate to the array of threaded holes.

Assignees

• Caterpillar Inc

Inventors

• Mchenry Ryan
• Kress Lee
• Balan Andreia

Classifications

• F01N2340/06

  Arrangement of the exhaust apparatus relative to the turbine of a turbocharger · CPC title

• F01N3/043

  without contact between liquid and exhaust gases · CPC title

• F01N13/08 Primary

  Other arrangements or adaptations of exhaust conduits {(pipes, joints or supports therefor in general F16L; collecting or removing exhaust gases of vehicle engines in workshops B08B15/00, on highways E01C1/005)} · CPC title

• F01N13/1855

  the connection being realised by using bolts, screws, rivets or the like · CPC title

• Y02T10/144

  Cross-Sectional Technologies · mapped topic