Brazed wick for a heat transfer device
First Claim
Patent Images
1. capillary structure for a heat transfer device comprising:
- a plurality of particles joined together by a brazing compound comprising about sixty-five percent weight copper and thirty-five percent weight gold such that fillets of said brazing compound are formed between adjacent ones of said plurality of particles so as to form a network of capillary passageways between said particles.
13 Assignments
0 Petitions
Accused Products
Abstract
A capillary structure for a heat transfer device, such as a heat pipe is provided having a plurality of particles joined together by a brazing compound such that fillets of the brazing compound are formed between adjacent ones of the plurality of particles. In this way, a network of capillary passageways are formed between the particles to aid in the transfer of working fluid by capillary action, while the plurality of fillets. provide enhanced thermal transfer properties between the plurality of particles so as to greatly improve over all heat transfer efficiency of the device.
131 Citations
20 Claims
-
1. capillary structure for a heat transfer device comprising:
a plurality of particles joined together by a brazing compound comprising about sixty-five percent weight copper and thirty-five percent weight gold such that fillets of said brazing compound are formed between adjacent ones of said plurality of particles so as to form a network of capillary passageways between said particles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
10. A heat pipe comprising:
-
a hermetically sealed and partially evacuated enclosure, said enclosure comprising internal surfaces;
a wick disposed on at least one of said internal surfaces and comprising a plurality of particles joined together by a brazing compound such that fillets of said brazing compound are formed between adjacent ones of said plurality of particles so as to form a network of capillary passageways between said particles wherein said brazing compound comprises about sixty-five percent weight copper and thirty-five percent weight gold; and
a two-phase fluid at least partially disposed within a portion of said wick. - View Dependent Claims (11, 12, 13, 14, 15, 17, 18)
-
-
16. A heat pipe comprising:
-
a hermetically sealed and partially evacuated enclosure, said enclosure comprising internal surfaces;
a wick disposed on at least one of said internal surfaces and comprising a plurality of particles joined together by a brazing compound wherein said plurality of particles comprises a first melting temperature and said brazing compound comprises a second melting temperature that is lower than said first melting temperature and further wherein said brazing compound comprises six percent by weight of a finely divided copper/gold such that fillets of said brazing compound are formed between adjacent ones of said plurality of particles so as to form a network of capillary passageways between said particles wherein said brazing compound comprises about sixty-five percent weight copper and thirty-five percent weight gold; and
a two-phase fluid at least partially disposed within a portion of said wick.
-
-
19. A heat pipe comprising a sealed and partially evacuated tubular enclosure having an internal surface covered by a brazed wick comprising a plurality of copper particles joined together by a brazing compound comprising about sixty-five percent weight copper and thirty-five percent weight gold such that fillets of said brazing compound are formed between adjacent ones of said plurality of particles so as to form a network of capillary passageways between said particles;
- and
a working fluid disposed within said tubular enclosure.
- and
-
20. A heat pipe comprising:
-
a sealed and partially evacuated enclosure having an internal surface;
a grooved brazed wick disposed upon said internal surface comprising a plurality of individual particles and a brazing compound comprising about sixty-five percent weight copper and thirty-five percent weight gold such that fillets of said brazing compound are formed between adjacent ones of said plurality of particles, and further including at least two lands that are in fluid communication with one another wherein said particles are thermally engaged with one another by a plurality of said fillets; and
a working fluid disposed within said enclosure.
-
Specification