Plate heat exchanger, heat pump device including plate heat exchanger, and heat pump cooling, heating, and hot water supply system including heat pump device
US11662152B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2019 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | May 31, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2265/16
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A plate heat exchanger includes a plurality of heat transfer plates stacked together and each having openings at four corners thereof. The heat transfer plates are partially brazed together such that a first flow passage through which first fluid flows and a second flow passage through which second fluid flows are alternately arranged with one of the heat transfer plates disposed therebetween, openings at the four corners being connected forming first headers through which the first fluid enters and is discharged and second headers through which the second fluid enters and is discharged. At least one of two heat transfer plates between which the first flow passage or the second flow passage is disposed is formed by a pair of metal plates stacked together. The metal plate adjacent to the second flow passage is thinner than the metal plate adjacent to the first flow passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.