Flow control and improved heat rise control device for water heaters
US9074383B2 · kind B2 · utility
2Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2011 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Aug 28, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H15/36
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Disclosed are systems and devices for controlling the amount of water passing through a heat exchanger and the amount of water that by-passes the heater without passing through the heat exchanger. In some embodiments, the system includes a by-pass valve assembly having means for sensing a time-varying characteristic of fluid adjacent the inlet, means for sensing a time-varying characteristic of fluid adjacent the outlet, and a valve that alters the amount of fluid by-passing the fluid heater in response to differences in the time-varying characteristic of fluid adjacent the inlet and fluid adjacent the outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.