EP0585775B1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP0585775B1
EP0585775B1 EP93113457A EP93113457A EP0585775B1 EP 0585775 B1 EP0585775 B1 EP 0585775B1 EP 93113457 A EP93113457 A EP 93113457A EP 93113457 A EP93113457 A EP 93113457A EP 0585775 B1 EP0585775 B1 EP 0585775B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
insert
orifice
pipe connector
space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93113457A
Other languages
German (de)
English (en)
Other versions
EP0585775A1 (fr
Inventor
Kurt Scharpf
Rolf Fink
Dieter Schweidler
Friedrich Schulz
Clemens Bentele
Christoph Semmler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daimler Benz AG
Mahle Behr GmbH and Co KG
Original Assignee
Daimler Benz AG
Mercedes Benz AG
Behr GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimler Benz AG, Mercedes Benz AG, Behr GmbH and Co KG filed Critical Daimler Benz AG
Publication of EP0585775A1 publication Critical patent/EP0585775A1/fr
Application granted granted Critical
Publication of EP0585775B1 publication Critical patent/EP0585775B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0231—Header boxes having an expansion chamber

Definitions

  • the invention relates to a heat exchanger with tubes through which a coolant flows and held in a tube sheet, and with a collection space for the coolant adjacent to the tube sheet, in particular a downflow cooler for motor vehicle engines, with a collection container which passes through a partition into the collection space and one next to it running compensation space is divided and provided with a filler neck running transversely to the partition for the coolant.
  • a water tank for a heat exchanger of the type mentioned is known.
  • a partition runs inside the collection container, which is arranged at an angle, so that the collection space for the coolant on one side of this partition can be connected to the cooling water circuit with laterally emerging connections, while the space above the partition is connected directly via a connecting line is connected to the suction side of the coolant pump.
  • This configuration serves to be able to save an otherwise necessary, independent reserve container as a pressure container.
  • the disadvantage is that the coolant only through the space above the partition through a filler neck can be filled in, which is relatively cumbersome and time consuming.
  • the invention has for its object to find a design for the collecting container in downflow coolers of the type mentioned, which makes the additional arrangement of an expansion tank unnecessary, but still simplifies the filling or refilling of coolant.
  • the partition is provided at the point opposite the filler neck with an opening and on its side facing the compensation chamber with guide devices for inserting an insert which provides the space between the filler neck and the opening bridging tubular connecting piece.
  • claims 4 to 7 allow a very simple implementation, in which the insert can be inserted through the initially open end face of the compensation space and locked in its guides.
  • claims 8 to 12 have the advantage that with the insert to be inserted anyway from one side, a further pipe socket can be positioned, which receives the cooling water punch indicator and is also surrounded by an annular space that influences the Prevents swimmers from currents.
  • claims 13 to 15 allow the guide for inserting the insert to be made relatively short and to adapt it to the inclined end wall.
  • a finned tube block (1) which in a known manner consists of parallel tubes (2) which are interconnected by transverse ribs (3), each with an upper Collection container (4) and a lower collection container (5) is connected. These collecting tanks serve to distribute the liquid coolant flowing through the pipes (2) evenly over all pipes and to pass them in the circuit through an internal combustion engine (not shown) for a motor vehicle to be cooled.
  • the finned tube block (1) is attached to the respective collecting containers (4 and 5) with the aid of tube plates (6 and 7).
  • the tube sheets (6) also serve to fasten the individual tubes (2) of the finned tube block (1) in a known manner.
  • the coolant which comes warmed up by the engine, enters in the direction of arrow (8) into a connecting piece (11) on the upper collecting container (4), is distributed in a collecting space (12) of the upper collecting container (4) over the entire width of the Finned tube block (1) and then flows through the tubes (2) into the lower collecting tank (5), from where it is in the direction of the arrow (9) enters the cooling circuit again through an outlet connection (10), ie is sucked in by the water pump.
  • This flow through the cooler from the inlet connection (11) to the outlet connection (10) is the so-called main flow of the coolant, to which a so-called secondary flow for degassing the coolant is assigned - this secondary coolant flow runs through the compensation chamber (16) arranged above the collecting chamber (12), which is connected to the collecting space (12) by appropriate inlet openings and to the suction side of the water pump by a corresponding outlet opening - this principle of main flow and secondary flow for degassing is known per se.
  • the entire radiator shown in FIGS. 1 and 2 can then be connected with the aid of fastening tabs (13) on the one hand to a radiator frame and on the other hand with fastening devices in the engine compartment. It is placed on a corresponding crossbeam in the engine compartment with pins (14) which protrude from the lower collecting container (5).
  • the upper collecting container (4) is designed in a special and inventive manner. It is provided with a partition (15) which extends transversely and longitudinally through the entire interior of the collecting container (4).
  • This partition (15) separates the already mentioned collecting space (12) for the coolant flowing through the nozzle (11) from an equalizing space (16) which is no longer, but somewhat wider than the underlying collecting space (12) and one for strength reasons circular wall (17) is included, the diameter of which remains essentially the same over the entire length of the collecting container (4), but has a lower height towards the inlet connection (11).
  • the partition (15) which also forms the lower end wall of the compensation space (16) and is formed in one piece with the collecting container (4) and the compensation space (16), runs obliquely from the upper edge of the inlet connector (11) to the right, front Flange (18) of the collecting container (4) down. It has two sections (19 and 20) which run essentially parallel to the tube sheet (6) and which are separated from one another by a shoulder (21) which runs obliquely.
  • the partition (15) is also provided in the area (19), which runs parallel to the area (20), but in a higher level, with a circular opening (22) through which a connection between the equalizing space (16) and the collecting space ( 12) arises.
  • the partition (15) also has in the area (20) a smaller circular opening (23), the importance of which will be discussed.
  • This insert (24) is pushed from the side of the flange (18), where the compensation space (16) has the greater clear width compared to the other side, in the direction of arrow (47) into the interior of the compensation space (16), as long as the cover (25) has not yet been placed on the open end face in the region of the flange (18).
  • the partition (15) is provided with opposite guide grooves (26) which are provided on the side of the partition (15) facing the compensation space (16).
  • These two mutually parallel grooves (26), which open towards the side facing each other, are connected by a perpendicular groove (27) to a kind of pocket, in the side and forward towards the connecting piece (11)
  • the ribs (28), since they run on three sides, are designed in the manner of an insertion flange and are arranged at the lower end of a connecting piece (29) which defines the space between the partition wall (15) and the opposite upper region (17a) of the wall (17) bridges the compensation space (16).
  • this wall part (17a) there is an opening (30), which is surrounded by a filler neck (31), on which an end cover is provided in a known manner a pressure relief valve can be placed.
  • the connecting piece (29) connects to the opening (30) and therefore establishes a direct connection between the filler neck (31) and the collecting space (12) of the collecting container (4).
  • the connecting piece (29) is double-walled in the exemplary embodiment and has an outer ring wall (32), the upper contour of which, like that of the connecting piece (29), is adapted to the circular inner contour of the wall (17).
  • the outer annular space (33) surrounded by the wall (32) is connected to the compensation space (16) via an opening (34) provided in its bottom and to the interior of the connecting piece (29) via a small connecting opening (35).
  • the connecting piece (29) also has at its upper end an opening (36) through which a connection between the outer annular space (33) and the interior of the connecting piece (29) is also made. These openings serve to allow the passage of liquid and / or air or vapor bubbles from one room to another. In this way, the cooling circuit can be vented or the coolant ejected in a known manner via the filler neck (31) and a connection neck (37) provided there.
  • Side at least one tube (2 ') is arranged, which is directly connected to the compensation chamber (16). The degassed coolant is sucked out of the equalization chamber (16) in a secondary flow through this pipe (2 ') via the outlet connection (10).
  • the connecting piece (29) with its guide ribs (28) is designed as a one-piece insert (24) with a further pipe piece (38) is, which is concentric with the opening (23) and serves to surround a cooling water level indicator, which can be led into the interior of the collecting container (4) through a corresponding connecting flange (39), which is located next to the filler neck (31).
  • the cooling water level indicator in the exemplary embodiment consists of a hollow guide pin (40) welded to the connecting flange (39) for a float (41), the position of which can be scanned contactlessly by means of a sensor pushed into the interior of the hollow guide pin (40).
  • the float (41) is slidably guided on the pin (40).
  • the pipe socket (38) is also double-walled.
  • the outer wall (42) is concentric with the inner wall.
  • the outer annular space (43) is connected to the interior of the pipe socket (38) via a bore (44).
  • the pipe socket (38) closed at the bottom by a base (45) is provided with a hollow pin (46) projecting downwards on this base which, when the insert (24) in the direction of arrow (47) has reached the end position shown in FIG. 3, engages in the opening (23) of the partition (15).
  • the pin (46) is slightly bevelled on its lower end face. Since it is hollow, it also represents a connection between the compensation chamber (16) and the collecting chamber (12). This enables a rapidly responding cooling water level indicator, in particular if there is a sudden loss of cooling water.
  • the pipe socket (38) is at its lower end and below the bottom (45) with guide ribs projecting to the side (47) which, similarly to the lower end of the connecting piece (29), form a type of flange and which can be inserted into guide grooves (48) which are located in the region of section (20) on the side of the compensation space (16) facing the Partition (15) is located.
  • guide grooves (48) consist only of two grooves (48) arranged parallel to one another and open towards one another.
  • the entire insert (24) with the cover (25) still open can therefore be moved from the open end face in the direction of the arrow (47) into the compensation space (16).
  • the guide pin (40), which can be pushed in through the flange (39), is not yet in its installed position. Only the float (41) is inserted into the interior of the pipe socket (38). If the insert (24) is therefore introduced in the direction of the arrow (47), then there is no difficulty in pushing it into the desired end position shown in FIG. 3, because the rounded upper edges of the connecting piece (29) and its outer wall (32 ) when inserted on the inside of the wall (17) and thus the ribs (28) also easily enter the guide grooves (26).
  • the ribs (47) are thus guided in the associated grooves (48) in the region of the shoulder (20), so that the end position is reached in the direction of the arrow (47) by pressing the insert (24) the hollow pin (46) engages in the opening (23) and ensures the exact position of the insert (24). If this position is reached, in which the upper edges of the connecting piece (29) and its outer wall (32) form a small gap to the wall (17a) receiving the filler neck (31), then the guide pin (40) can be inserted from above and on the flange (39) are welded. The cover (25) is then placed on and welded tightly to the flange (18), for example.
  • the entire collecting container (4) is thus produced in a simple manner. It allows easy filling of the coolant into the collecting space (12) and it opens up the possibility of determining the cooling water level in a simple and precise manner.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (16)

  1. Echangeur de chaleur comprenant des tubes (2) parcourus par un agent refroidisseur et maintenus dans une plaque tubulaire (6), ainsi qu'un espace de collecte (12) d'agent refroidisseur adjacent à la plaque tubulaire, en particulier radiateur à circulation descendante pour moteurs de véhicules automobiles, possédant un collecteur (4) qu'une cloison (15) partage en l'espace de collecte (12) et un espace de compensation (16) s'étendant au-dessus de celui-ci et pourvu d'une tubulure de remplissage (31) pour l'agent refroidisseur, tubulure qui est orientée transversalement à la cloison (15), caractérisé en ce que la cloison (15) est pourvue d'une ouverture (22) à l'endroit situé à l'opposé de la tubulure de remplissage (31) et de dispositifs de guidage pour l'introduction d'un insert (24) sur son côté dirigé vers l'espace de compensation (16), insert qui comporte une tubulure de liaison (29) couvrant l'intervalle entre la tubulure de remplissage (31) et l'ouverture (22) et ayant une forme tubulaire.
  2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que la tubulure de liaison (29) est appliquée de manière étanche contre le bord de l'ouverture (22) et est voisine de la tubulure de remplissage (31), avec interposition d'une petite fente.
  3. Echangeur de chaleur selon les revendications 1 et 2, caractérisé en ce que la tubulure de liaison (29) est construite comme un récipient à double paroi dont les espaces intérieurs sont reliés entre eux par au moins un perçage transversal (35) et dont l'espace annulaire (33) situé à l'extérieur est ouvert vers le bas à au moins un endroit (34).
  4. Echangeur de chaleur selon la revendication 1, caractérisé en ce que les dispositifs de guidage sont réalisés comme des rainures opposées (26) dans lesquelles on peut faire glisser, à partir d'un côté, des nervures de guidage (28) de l'insert (24).
  5. Echangeur de chaleur selon la revendication 4, caractérisé en ce que l'espace de compensation (16) est ouvert sur un côté d'extrémité pouvant être fermé par un couvercle (25), et que l'insert (24) peut être introduit à partir de ce côté ouvert.
  6. Echangeur de chaleur selon les revendications 4 et 5, caractérisé en ce que la position finale de l'insert (24) est fixée par un élément d'arrêt (46) à encliquetage élastique.
  7. Echangeur de chaleur selon les revendications 4 à 6, caractérisé en ce que le collecteur (4) est en matière plastique et le couvercle (25) est soudé à une bride (18) agencée sur l'extrémité ouverte de l'espace de compensation (16).
  8. Echangeur de chaleur selon une des revendications 1 à 7, caractérisé en ce que l'insert (24) est pourvu d'une tubulure supplémentaire (38) située à côté de la tubulure de liaison (29) dans la direction d'insertion (47) et agencée concentriquement à une ouverture (30) de l'espace de compensation (16), tubulure supplémentaire dans laquelle peut être mise en place un indicateur de niveau d'eau de refroidissement (40, 41).
  9. Echangeur de chaleur selon la revendication 8, caractérisé en ce que la tubulure supplémentaire (38) entoure un flotteur (41) pour l'indicateur du niveau d'eau de refroidissement.
  10. Echangeur de chaleur selon la revendication 8, caractérisé en ce que l'extrémité inférieure de la tubulure supplémentaire (38) porte une tige d'arrêt (46) qui pénètre dans une ouverture (23) de la cloison (15) lorsque la position de fin de course du mouvement d'insertion est atteinte.
  11. Echangeur de chaleur selon la revendication 10, caractérisé en ce que la tige d'arrêt (46) est creuse et établit une liaison entre l'espace de collecte (12) et l'espace intérieur de la tubulure supplémentaire (38).
  12. Echangeur de chaleur selon les revendications 8 et 9, caractérisé en ce que la tubulure supplémentaire (38) est à double paroi et pourvue d'une ouverture de liaison (44) entre son espace intérieur et son espace annulaire (43) situé à l'extérieur.
  13. Echangeur de chaleur selon une des revendications 1 à 12, caractérisé en ce que la tubulure de liaison (29) et la tubulure supplémentaire (38) sont réunies par des entretoises (49, 50) pour constituer un insert (24) d'un seul tenant et sont pourvues chacune de nervures de guidage à leur base.
  14. Echangeur de chaleur selon les revendications 1 et 13, caractérisé en ce que la cloison (15) s'étend obliquement par rapport à la plaque tubulaire (6) et présente un gradin (21) entre la tubulure de liaison (29) et la tubulure supplémentaire (38), les rainures (27, 48) étant situées des deux côtés du gradin (21).
  15. Echangeur de chaleur selon la revendication 14, caractérisé en ce que les nervures de guidage (47) de la tubulure supplémentaire (38) s'étendent parallèlement à celles de la tubulure de liaison (29), mais sont situées dans un plan plus bas.
  16. Echangeur de chaleur selon la revendication 1 ou 14, caractérisé en ce que la cloison (15) est réalisée d'un seul tenant avec le collecteur (4) et l'espace de compensation (16).
EP93113457A 1992-09-01 1993-08-24 Echangeur de chaleur Expired - Lifetime EP0585775B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4229028 1992-09-01
DE4229028 1992-09-01

Publications (2)

Publication Number Publication Date
EP0585775A1 EP0585775A1 (fr) 1994-03-09
EP0585775B1 true EP0585775B1 (fr) 1995-09-13

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EP93113457A Expired - Lifetime EP0585775B1 (fr) 1992-09-01 1993-08-24 Echangeur de chaleur

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EP (1) EP0585775B1 (fr)
DE (1) DE59300589D1 (fr)
ES (1) ES2078784T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1146210A2 (fr) * 2000-04-12 2001-10-17 Modine Manufacturing Company Système de refroidissement en forme de caisson pour véhicule automobile

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5351751A (en) * 1993-09-02 1994-10-04 Valeo Engine Cooling, Incorp. Heat exchanger tank with tie bar
DE502005009433D1 (de) 2005-02-18 2010-05-27 Ebm Papst St Georgen Gmbh & Co Wärmetauscher

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2827022A1 (de) * 1977-06-22 1979-01-18 Chausson Usines Sa Wasserbehaelter als reservedruckbehaelter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2852725A1 (de) * 1978-12-06 1980-06-12 Sueddeutsche Kuehler Behr Ausgleichsbehaelter fuer kuehlfluessigkeit
FR2506001B1 (fr) * 1981-05-12 1986-02-07 Valeo Dispositif de boite a eau et vase d'expansion pour echangeur de chaleur
FR2511428B1 (fr) * 1981-08-12 1986-01-24 Valeo Dispositif de boite a eau et vase d'expansion, par exemple moule en une seule piece, en particulier pour un radiateur de moteur a combustion interne
FR2536522A1 (fr) * 1982-11-18 1984-05-25 Valeo Boite a eau comprenant un passage de degazage et echangeur de chaleur comprenant une telle boite a eau

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2827022A1 (de) * 1977-06-22 1979-01-18 Chausson Usines Sa Wasserbehaelter als reservedruckbehaelter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1146210A2 (fr) * 2000-04-12 2001-10-17 Modine Manufacturing Company Système de refroidissement en forme de caisson pour véhicule automobile
EP1146210A3 (fr) * 2000-04-12 2003-03-05 Modine Manufacturing Company Système de refroidissement en forme de caisson pour véhicule automobile

Also Published As

Publication number Publication date
DE59300589D1 (de) 1995-10-19
ES2078784T3 (es) 1995-12-16
EP0585775A1 (fr) 1994-03-09

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