Heat pipe for transferring heat
US5360058A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1993 |
| Grant date | Nov 1, 1994 |
| Priority date | — |
| Expiry date | Jul 8, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D15/06
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat pipe has at least one liquid flow channel and one vapor flow channel for the movement of the heat carrier fluid from the evaporator end to the condenser end and vice versa. The liquid flow channel is so constructed that the capillary radius of its cross-sectional area increases from the evaporator end to the condenser end of the heat pipe, preferably in a continuous manner. Further, the evaporator end of the pipe is provided with a closure member for communicating the liquid flow channel with the vapor flow channel for replenishing the liquid in the evaporating end if necessary. Opening of the closure member also permits gas and/or vapor bubbles that have been collected in the liquid flow channel to pass into the vapor channel. The closure member may be operated by an electromagnetic valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.