Heat exchanger and manufacturing method thereof
US11807539B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2022 |
| Grant date | Nov 7, 2023 |
| Priority date | — |
| Expiry date | Jun 1, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2245/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The present application provides a heat exchanger and a manufacturing method of a heat exchanger. The heat exchange includes a metal substrate having a fluid channel for circulating a heat exchange medium. The heat exchanger includes a coating having a rare earth conversion coating and a hydrophilic coating. The rare earth conversion coating is arranged to cover at least part of a surface of the metal substrate, and the rare earth conversion coating includes a rare earth element-containing compound. At least part of the hydrophilic coating is further away from the metal substrate than the rare earth conversion coating. A surface of the heat exchanger is hydrophilic, which is conducive to the discharge of condensate water, and can improve corrosion resistance and prolong a service life of the heat exchanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.