US 11,752,691 B2
Method of building a heat exchanger
Paul M. Colson, Westfield, MA (US)
Assigned to Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Aug. 24, 2022, as Appl. No. 17/894,722.
Application 17/894,722 is a division of application No. 16/752,051, filed on Jan. 24, 2020, granted, now 11,453,160.
Prior Publication US 2022/0402202 A1, Dec. 22, 2022
Int. Cl. B29C 64/153 (2017.01); B29C 64/35 (2017.01); B33Y 10/00 (2015.01); B33Y 40/20 (2020.01); B29L 31/18 (2006.01)
CPC B29C 64/153 (2017.08) [B29C 64/35 (2017.08); B29L 2031/18 (2013.01); B33Y 10/00 (2014.12); B33Y 40/20 (2020.01)] 8 Claims
OG exemplary drawing
 
1. A heat exchanger, comprising:
a first hollow annulus, wherein the first hollow annulus includes a conical cross-section header;
a body integrally connected to and grown upward from the first hollow annulus,
wherein:
the body defines an interior that is cylindrically shaped;
an axis of the body is oriented parallel to a direction of gravity;
the first hollow annulus is disposed on a gravitational bottom of the body,
wherein the body comprises an exterior wall and a heat exchanger core disposed within the exterior wall;
a second hollow annulus integrally connected to and grown upwards from a gravitational top of the body, wherein the second hollow annulus includes a conical cross-section header; and
a drain port disposed along the gravitational bottom of the first annulus such that build powder is removed from the drain port;
wherein the heat exchanger and all of its components are integrally formed together as a single, monolithic piece of material.