Heat recovery ventilator

Patent metadata

Field	Value
Publication number	US-12061050-B2
Application number	US-201916972201-A
Country	US
Kind code	B2
Filing date	Nov 6, 2019
Priority date	Nov 7, 2018
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

A heat recovery wheel for a heat exchanger includes a wheel rim defining an outer perimeter of the heat recovery wheel, and a plurality of wheel passages located between the wheel rim and the wheel axis. The plurality of wheel passages are arranged in a plurality of radial layers relative to a wheel central axis. Each layer is defined by a first shaped material having a first cross-sectional shape and a second shaped material assembled to the first shaped material, the second shaped material having a second cross-sectional shape. Radially adjacent layers of the plurality of layers are secured directly to one another, and the plurality of wheel passages are configured for flow of a first airflow and a second airflow therethrough for thermal energy exchange between the first airflow and the second airflow.

First claim

What is claimed is:

1. A heat exchanger, comprising:
a housing, the housing defining:
a first airflow chamber through which a first airflow is directed; and
a second airflow chamber through which a second airflow is directed; and

a heat recovery wheel disposed in the housing and rotatable about a wheel axis, the heat recovery wheel including:
a wheel rim defining an outer perimeter of the heat recovery wheel; and
a plurality of wheel passages located between the wheel rim and the wheel axis, the plurality of wheel passages arranged in a plurality of radial layers relative to a wheel central axis, each layer defined by:
a first shaped material having a first cross-sectional shape; and
a second shaped material assembled to the first shaped material, the second shaped material having a second cross-sectional shape;

wherein the first shaped material is secured directly to the second shaped material; and
wherein the plurality of wheel passages are configured for flow of a first airflow and a second airflow therethrough for thermal energy exchange between the first airflow and the second airflow;
wherein at least one of the first shaped material or the second shaped material includes a hydrophilic coating.

2. The heat exchanger of claim 1 , wherein the first cross-sectional shape is the same as the second cross-sectional shape.

3. The heat exchanger of claim 1 , wherein the first cross-sectional shape is different from the second cross-sectional shape.

4. The heat exchanger of claim 1 , wherein the first cross-sectional shape is a first chevron pattern.

5. The heat exchanger of claim 1 , wherein the first cross-sectional shape is a first trapezoidal pattern.

6. The heat exchanger of claim 1 , wherein the first cross-sectional shape has a first angular alignment relative to the wheel central axis and the second cross-sectional shape has a second angular alignment different from the first angular alignment.

7. The heat exchanger of claim 1 , wherein the first cross-sectional shape is circumferentially angularly offset from the second cross-sectional shape.

8. The heat exchanger of claim 1 , further comprising a plurality of axially stacked layers of wheel passages relative to the wheel central axis, wherein the wheel passages of axially adjacent layers are circumferentially offset.

Assignees

• Carrier Corp

Inventors

• Hoysall Dhruv Chanakya
• Alahyari Abbas A
• Esformes Jack Leon

Classifications

• B21D53/04

  of sheet metal · CPC title

• Y02P70/10

  Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working · CPC title

• B29C53/285

  using rolls or endless bands · CPC title

• B21D13/04

  by rolling · CPC title

• B21D53/26

  wheels or the like · CPC title