摘要:
A distributing/collecting tank made of aluminium or an aluminium alloy is disclosed for the at least dual flow, hard-soldered evaporator of a motor vehicle air conditioning system. The box has a tube bottom and a lid (28) which complement each other at least in the direction of their narrow cross-section, forming a box, and which have in their longitudinal direction a number of longitudinal partitions which corresponds to the number of flows. At least one front wall of the box is formed by a separate closure piece (62) tightly connected to each adjacent longitudinal partition and at least one wall of the box is fitted with a coolant inlet (14). According to the invention, a coolant injection valve (50) is set on the closure piece (62) fitted with the coolant inlet (14) by means of a plug-in or flange connection (48), an injection valve is at least partially integrated in the structure of the closure piece (62) and/or at least one closure piece (62), together with the joined piece (90), leaves free a connection space (104) at the side of the evaporator away from the heat exchanger tubes (2), frontally prolonging the space taken by the heat exchanger tubes (2) of the evaporator.
摘要:
On décrit une plaque destinée à être utilisée dans un échangeur thermique à plaques-ailettes, comprenant un élément (12) de forme générale plane allongé possédant une nervure longitudinale (24). De plus, la plaque comporte un première série de moulures (30) de hauteur plus grande que celle de la nervure, ainsi qu'une deuxième série de moulures (34) dont la hauteur est approximativement égale à celle de la nervure longitudinale. Les moulures (30) sont positionnées en rangées entre lesquelles se trouve un espace plan de longueur prédéterminée, dans lequel vient se loger une rangée de moulures adjacentes, lorsque deux plaques identiques sont stratifiées ensemble l'une en face de l'autre de façon à former un échangeur thermique. On décrit également un échangeur thermique comprenant une pluralité de plaques superposées (12) comme décrit ci-dessus.
摘要:
A laminated-type evaporator (200) for an automotive air conditioning refrigerant circuit includes a plurality of tube units (201) having a pair of tray-shaped plates (202). Each of the tray-shaped plates includes a depression (120) defined therein, a flange (13) extending about the periphery thereof, and a wall (14) disposed at an intermediate location therein and extending a portion of the length of each plate to thereby define a rear side and a front side to each plate. The wall includes a flat portion formed at an upper end thereof. A slit (141) is formed at the flat, upper end portion of the wall by shearing. The slit extends along substantially the entire length of the wall along the wall's longitudinal axis.
摘要:
A plate is disclosed for use in a plate-fin heat exchanger, comprising a generally planar elongated member (12) having a longitudinal rib (24) disposed along the longitudinal length of the member. The plate further includes a first plurality of beads (30) having a height greater than the height of the rib as well as a second plurality of beads (34) having a height approximately equal to the height of the longitudinal rib. The beads (30) are arranged generally in rows having a planar space of predetermined longitudinal length therebetween into which an adjoining row of beads is placed when a pair of identical plates are laminated together in a face-to-face relationship and forming a heat exchanger. A heat exchanger comprising a plurality of stacked plates (12) generally as described above is also disclosed.
摘要:
With a fin width FW in the air-flow direction, fin thickness FT, fin pitch FP, fin height FH, and tube element height TW, dimensional relationships are 50mm ≦ FW ≦ 65mm, 0.06mm ≦ FT ≦ 0.10mm, 2.5mm ≦ FP ≦ 3.6mm, 7.0mm ≦ FH ≦ 9.0mm, and 2.0mm ≦ TW ≦ 2.7mm. Provided are an optimum fin shape and tube element thickness in which a heat exchange efficiency and an air-flow resistance are well balanced, thereby ensuring an improvement in the heat exchange efficiency and the reduction in size of the heat exchanger.
摘要:
Évaporateur à pochettes empilées dans lequel le fluide réfrigérant est injecté dans une conduite de liaison amont (12) formée par un sous-ensemble des pochettes (1) par une tubulure longitudinale (22) qui traverse une face d'extrémité (5) de l'évaporateur, éloignée de la conduite de liaison amont (12), et au moins une autre conduite de liaison (14) formée par d'autres pochettes. Selon l'invention, la tubulure (22) est excentrée par rapport aux ouvertures (11) qui font communiquer entre elles les pochettes formant l'autre conduite de liaison (14). Il en résulte une amélioration du rendement d'échange de chaleur. Application à la climatisation de l'habitacle des véhicules automobiles.