| 摘要 |
<p>A heat pipe assembly (10/110), under vacuum and having a working substance charged therein, comprising generally an evaporator (12/112) adapted to evaporate the working fluid and a condenser (16/116). The condenser (16/116) has a reservoir (30/130), located at a higher elevation than the evaporator (12/112), for collecting liquid working fluid therein. A discrete, impermeable liquid return passage (36/136,20/120) permitting the flow, by gravity, of the liquid working substance from the reservoir (30/130) to the evaporator (12/112). The liquid return passage extends through the evaporator (12/112) and terminates near the closed leading end thereof, and is fitted with a vent line (38/138) that diverts ascending vapor to the top of the condenser (16/116). A flow modifier (24/124) is positioned within the evaporator (12/112), causing swirling working fluid flow in the evaporator, whereby the flow modifier (24/124) ensures that un-vaporized liquid entrained with evaporated working substance is propelled against inner surfaces (23/123) of the evaporator (12/112) by centrifugal force to ensure liquid coverage of the inner surfaces, thereby delaying onset of film boiling.</p> |
