Thermal stress relief for heat sinks

Patent metadata

Field	Value
Publication number	US-11092384-B2
Application number	US-201614996043-A
Country	US
Kind code	B2
Filing date	Jan 14, 2016
Priority date	Jan 14, 2016
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

A crossflow heat exchanger includes an outer housing, an inlet that receives a hot fluid to be cooled and a monolithic manifold includes a central receiving reservoir and one or more outer reservoirs. The fluid received at the inlet passing into the central receiving reservoir. The exchanger also includes an outlet connected to the one or more outer reservoirs and tubes disposed within the outer housing that connect the central receiving reservoir and the one or more outer reservoirs. The monolithic manifold includes a gap formed between the central receiving reservoir and one or more outer reservoirs.

First claim

What is claimed is:

1. A crossflow heat exchanger comprising:
an outer housing;
an inlet that receives a hot fluid to be cooled on a first side of the outer housing;
a monolithic manifold that includes a central receiving reservoir that is coupled to the inlet and one or more outer reservoirs, wherein the hot fluid received at the inlet passes into the central receiving reservoir;
tubes disposed within the outer housing that connect the central receiving reservoir and the one or more outer reservoirs;
an outlet disposed on an opposite side of the outer housing, wherein the outlet is connected to the one or more outer reservoirs and removes cooled fluid from the heat exchanger;
end caps disposed at opposing ends of the monolithic manifold; and
wherein the monolithic manifold includes a gap formed between the central receiving reservoir and the one or more outer reservoirs and the gap provides for structural independence between the central receiving reservoir and the one or more outer reservoirs over a majority of a length of the monolithic manifold in all flow directions of the hot fluid.

2. The crossflow heat exchanger of claim 1 , wherein the gap passes through the end caps.

3. The crossflow heat exchanger of claim 2 , wherein the gap includes one or more supports disposed therein between the central receiving reservoir and the one or more outer reservoirs.

4. The crossflow heat exchanger of claim 1 , wherein the inlet includes at least two inlet portions.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Stieber Jesse Joseph

Classifications

• F28D7/08

  the conduits being otherwise bent, e.g. in a serpentine or zig-zag (F28D7/10 takes precedence){(F28D7/0016 and F28D7/0033 take precedence)} · CPC title

• F28F2009/0285

  Other particular headers or end plates · CPC title

• F28F9/0246

  Arrangements for connecting header boxes with flow lines · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• F28D1/0233

  with air flow channels · CPC title