F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
F25B 1/00 (2006.01) F25B 13/00 (2006.01) F25B 39/02 (2006.01) F25B 40/00 (2006.01) F28D 7/10 (2006.01) F25B 5/02 (2006.01) F25B 41/04 (2006.01) F25B 41/06 (2006.01)
Patent
CA 2306884
A double-tube type heat exchanger has a restriction hole, formed on an inner tube, through which a refrigerant introduced into an outer tube is introduced into the inner tube while the refrigerant expands. Therefore, a part of the refrigerant introduced into the outer tube can be introduced into the inner tube from the restriction hole while the refrigerant expands. That is, the restriction hole formed on the inner tube serves as an expansion mechanism of a bypass flow. Therefore, this double-tube type heat exchanger allows an injection circuit or a super-cooling circuit to be compactly and inexpensively constructed.
L'invention concerne un échangeur de chaleur du type à double tube (1) capable de former un circuit d'injection de gaz compact et bon marché ainsi qu'un circuit de surrefroidissement. Selon cette invention, un orifice à étranglement (6) à travers lequel on achemine le frigorifiant dans un tube externe (3) sert à l'acheminer dans le tube interne (2) pendant que le frigorifiant se dilate dans le tube interne (2). Grâce à ce schéma, une partie du frigorifiant, amenée dans le tube externe (3), peut être acheminée dans le tube interne (2) pendant que ce frigorifiant se dilate, et ce à travers un orifice à étranglement (6) formé dans le tube interne (2). Ainsi, l'orifice à étranglement (6) formé dans le tube interne (2) joue le rôle d'un mécanisme de dilatation d'un courant de dérivation.
Daikin Industries Ltd.
Kirby Eades Gale Baker
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