Heat pump water heater
US10914491B2 · kind B2 · utility
2Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2016 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Apr 5, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/071
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat pump water heater has a tank, a burner in communication with a fuel source, a flue, and a heat pump system. The heat pump system has a refrigerant path, at least a portion of which forms an evaporator in thermal communication with the flue. Another portion of the refrigerant path is in thermal communication with the water tank volume so that heat transfers from the refrigerant to the water tank volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.