Heat-exchanger pins
AssigneeHamilton Sundstrand Corporation
InventorsJaroslaw Rubalewski, Hubert Siudzinski, Tomasz Meczkowski
Life of this patent
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Abstract
A pin for a heat exchanger. The pin includes: a monolithic top section; a monolithic bottom section; and a middle section comprising a plurality of spaced apart sub-pins extending between the top section and the bottom section, wherein the plurality of sub-pins define one or more windows for allowing fluid flow through the middle section. Also disclosed is a layer of a heat exchanger including the pin, as well as a heat exchanger including the layer, and a method of making a layer for a heat exchanger.
Claims8
A pin for a heat exchanger, the pin comprising:
- a monolithic top section;
- a monolithic bottom section;
- and
- a middle section comprising a plurality of spaced apart sub-pins extending between the top section and the bottom section, wherein the plurality of sub-pins define one or more windows for allowing fluid flow through the middle section;
- wherein the plurality of sub-pins consists of three sub-pins, wherein the three sub pins are arranged to define the vertices of an equilateral triangle, a scalene triangle, or an isosceles triangle.
A layer for a heat exchanger, the layer comprising:
- an inlet;
- an outlet;
- an upper sheet;
- and
- a lower sheet;
- wherein a fluid flowpath is defined between the upper and lower sheets and from the inlet to the outlet;
- wherein at least one pin is disposed in the flowpath, wherein the top section of the at least one or each pin is connected to the upper sheet and the bottom section of the or each pin is connected to the lower sheet;
- wherein each pin includes:
- a monolithic top section;
- a monolithic bottom section;
- and
- a middle section comprising a plurality of spaced apart sub-pins extending between the top section and the bottom section, wherein the plurality of sub-pins define one or more windows for allowing fluid flow through the middle section;
- wherein the at least one pin is oriented within the layer such that one window of the or each pin faces directly into a local flow direction defined immediately ahead of the at least one pin, from the inlet to the outlet;
- wherein the at least one pin comprises three sub-pins, wherein a first and second of the sub-pins define the window that faces directly into the local flow direction, and wherein a third of the sub-pins is located directly behind the window, in the flow direction, such that, in use, a portion of fluid that flows through the window splits in two to flow around both sides of the third sub-pin.
Dependencies are inferred from the claim text.