Abstract:
Dispositif de climatisation (1) à cycle de fonctionnement transcritique, le dispositif comprenant un circuit (4) convoyant un fluide frigoporteur (5) et reliant successivement : - la sortie (6) d' un compresseur (7); - un refroidisseur de gaz (8); - le circuit froid (9) d' un refroidisseur intermédiaire (10); - un détendeur (11); - un deuxième échangeur (12) ayant un volume (31, 71 ) de circulation d' un fluide de refroidissement (21) en échange thermique avec le fluide frigoporteur (5); - l'entrée (13 ) du circuit chaud (14) du refroidisseur intermédiaire (10); le dispositif de climatisation (1) étant caractérisé en ce que le deuxième échangeur de type (12) comprend un volume d' expansion du fluide de refroidissement (21).
Abstract:
A connection kit (20) for connecting a heating radiator to a plumbing system comprises: a pair of joint elements (23), attachable in a fluid-tight manner to respective end parts (7) of respective adjacent radiator elements (2) of the radiator (1); and a plug (24), insertable through one or more transverse connecting sleeves (5) of the radiator (1) and in a nipple (12), which joins a pair of transverse connecting sleeves (5) of two adjacent radiator elements (2), for being positioned between the joint elements (23); the plug (24) is provided with screwing members (40) shaped so as to cooperate with an inner surface of the nipple (12) to be screwed inside the nipple (12); and with at least one sealing member (43) cooperating with the nipple (12) for separating in a fluid-tight manner the two sleeves (5) joined by the nipple (12).
Abstract:
A method for joining aluminum structures to cast or moulded structures is disclosed. In the method a mounting surface is defined on the cast or moulded structure, the surface having defined therein a plurality of threaded sockets. The aluminum structure is brazed to an aluminum face plate via a shim plate. The face plate has bores and is secured to the surface by passing the bolt shafts through the bores and engaging the shafts in the sockets. The cast or moulded structure can be plastic. The shim plate can be braze clad aluminum and the face plate can be unclad aluminum. The method can be used to produce an oil cooler module wherein the aluminum structure is a heat exchanger, the moulded structure is plastic and has a port and the face plate has a port and is secured by the bolts such that the ports are sealingly coupled.
Abstract:
Es sind Wärmeübertragungseinheiten mit über die Lauflänge unterschiedlichen Rippenabständen zur Erhöhung der Kühlleistung bekannt. Diese weisen häufig Probleme wegen zu hoher Versottung auf. Erfindungsgemäß wird nun vorgeschlagen, dass der vom zu kühlenden Fluid durchströmte Kanal (4) zwei in Hauptströmungsrichtung aufeinanderfolgende Abschnitte (22, 36) aufweist, wobei die Rippen (14, 16) in ihrem Abströmbereich (30,44) im ersten Abschnitt (22) einen in Hauptströmungsrichtung konstanten Querschnitt aufweisen und im zweiten Abschnitt (36) einen sich in Hauptströmungsrichtung erweiternden Querschnitt aufweisen. Hierdurch wird die Versottung im hinteren Bereich der Wärmeübertragungsein- heit bei gleich bleibender Kühlleistung herabgesetzt.
Abstract:
The cooling plate comprising three portions (4), (5), (6), on which boundary surfaces the expansion packings (3) are arranged, is manufactured through the separate casting of a liquid metal into a mould. Before the metal has been poured, partitions with expansion packings (3) are arranged in the mould so that mould cavities are formed in order to produce three portions as follows: the intermediate portion (5) and the portions (4) and (6) provided with connections (7) for the cooling tubes (2). The intermediate portion (5) can be subdivided into several portions in the same way.
Abstract:
Modular tubing apparatuses for use in a shell-and-tube heat exchanger are described. Multiple apparatuses may be connected in series to form a high density, small tube diameter, long length tube apparatus assembly. Casting molds for forming modular tubing apparatuses are likewise described, including methods for casting such apparatuses.
Abstract:
A heat exchanger (10) comprises a front wall (20) and a back wall (30) to form a space (40) for a flue gas such that a fluid flowing through a channel (60, 70) formed in the front and back wall (20, 30) can exchange heat with the flue gas, in use. The front wall (20) includes a lower portion (22) and an upper portion (24). The lower portion (22) extends along the back wall (30). The upper portion (24) extends upwardly from the upper end of the lower portion (22) and extends outwardly away from the back wall (30) so as to form a combustion space (42) of a flammable gas between the upper portion (24) and the back wall (30). The length (L2) of the upper portion (24) along the longitudinal direction thereof is longer than the length (L1) of the lower portion (22) along the longitudinal direction thereof.
Abstract:
Die vorliegende Erfindung betrifft ein Verbindungsbauteil (15) zum fluidischen Verbinden einer Leitung mit einer Funktionskomponente eines Fluidsystems,mit einem Gehäuse (16), das einen Hohlraum (17) undeine Montageseite (18) aufweist, die für eine Befestigung des Verbindungsbauteils (15) an der Funktionskomponente vorgesehen ist, das an der Montageseite (18) einen Komponentenanschluss (19) aufweist, der eine zum Hohlraum (17) offene Komponentenanschlussöffnung (20) aufweist, und das zwei Leitungsanschlüsse (22) aufweist, die jeweils einen Anschlussstutzen (23) aufweisen, der eine Leitungsanschlussöffnung (24) einfasst und der für eine Befestigung einer Leitung am Verbindungsbauteil (15) vorgesehen ist, wobei das Gehäuse (16) einen Schraubbereich (25) aufweist, der eine Durchgangsöffnung (27) aufweist, die an der Montageseite (18) mündet, so dass das Verbindungsbauteil (15) mittels einer Schraube (29) an der Funktionskomponente befestigbar ist. Einevereinfachte Anpassung an verschiedene Einbausituationen ergibt sich, wenn zumindest bei einem solchen Leitungsanschluss (22) die Leitungsanschlussöffnung (24) zum Hohlraum (17) offen istoder durch eine Trennwand (35) vom Hohlraum (17) getrennt ist.
Abstract:
The invention relates to a counter flow enthalpy exchanger (1) having a parallelogram-shaped central part (11), whose ends in the flow direction through the exchanger it is joined by end parts (12, 13), which become narrower in the direction from the central part (11), whereby in order to separate the flow of the heat-transfer medium in the direction from the inner space to the outer space are arranged contour identical and with respect to the flowing medium sealed vapour-permeable lamellae (10) with shaping means for generating turbulent flow, whereby every two adjacent lamellae (10) form one interplate flow channel in the central part (11) one interplate flow channel. The lamella (10) is made as a one-piece self-supporting moulding common to the central part (11) and the end parts (12, 13), whereby it does not have a reinforcing support grid. Two adjacent lamellae (10) form one interplate flow channel in the end part (12, 13), in the walls of which are formed straight protrusions (121, 131) situated in the direction of the heat-transfer medium flow between the central part (11) and corresponding inlet or outlet of this medium.