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EP0215370B1 - Kühlmittelausgleichsbehälter, insbesondere für Kraftfahrzeugverbrennungsmotoren - Google Patents

Kühlmittelausgleichsbehälter, insbesondere für Kraftfahrzeugverbrennungsmotoren Download PDF

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Publication number
EP0215370B1
EP0215370B1 EP86112140A EP86112140A EP0215370B1 EP 0215370 B1 EP0215370 B1 EP 0215370B1 EP 86112140 A EP86112140 A EP 86112140A EP 86112140 A EP86112140 A EP 86112140A EP 0215370 B1 EP0215370 B1 EP 0215370B1
Authority
EP
European Patent Office
Prior art keywords
coolant
expansion tank
chamber
coolant expansion
walls
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
EP86112140A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0215370A3 (en
EP0215370A2 (de
Inventor
Helmut Dobler
Siegfried Jenz
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.)
Mahle Behr GmbH and Co KG
Original Assignee
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP0215370A2 publication Critical patent/EP0215370A2/de
Publication of EP0215370A3 publication Critical patent/EP0215370A3/de
Application granted granted Critical
Publication of EP0215370B1 publication Critical patent/EP0215370B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
    • F01P11/029—Expansion reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded
    • F28F2255/143—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded injection molded

Definitions

  • the invention relates to a coolant expansion tank, in particular for motor vehicle internal combustion engines, with at least one filler chamber for receiving coolant and at least one expansion chamber separated from the filler chamber by means of a partition wall, but via a connecting line connected to the expansion chamber.
  • Such a coolant expansion tank is known from DE-OS 2 852 725.
  • the container is divided into a filling chamber and an expansion chamber by means of a vertically arranged partition.
  • the upper area of the filling chamber is connected to the lower area of the expansion chamber via a connecting line.
  • the fill chamber is filled with coolant up to a certain height. For example, due to a high operating temperature of the internal combustion engine to be cooled, the coolant is heated and thereby expands. The result of this is that coolant overflows from the filling chamber via the connecting line into the expansion chamber. When the coolant is subsequently cooled, it is drawn back from the expansion chamber into the filling chamber by means of negative pressure.
  • the object of the invention is to provide a coolant expansion tank, in particular for motor vehicle internal combustion engines, in which, at the same time as the outer walls of the coolant expansion tank are checked for leaks, the separating wall separating the filling chamber and the expansion chamber from one another can also be checked for leaks.
  • the double-walled design of the partition wall means that if the partition wall leaks, the test equipment will leak into the test space formed by the two walls of the double wall. This can be determined by monitoring the test room, so that the tested coolant expansion tank can be identified as leaking in this way. Leakages on the outer wall of the coolant expansion tank can be determined in the same operation by leakage of test equipment at the corresponding point.
  • the two walls of the partition are designed to form a test chamber by means of transverse walls. In this way, a closed test chamber is formed.
  • the outer walls of this test chamber are aligned with the outer walls of the adjacent replenishment chamber and expansion chamber.
  • At least one transverse wall has at least one opening leading outwards. If the partition between the filling chamber and the expansion chamber is leaking, as already described, test equipment enters the test chamber and through the opening to the outside. The leakage of the partition can be recognized by the fact that test equipment emerges from the opening. It is expedient to provide openings of this type on all the outer walls of the test chamber, so that the position of the coolant expansion tank is irrelevant in its leak test.
  • a connecting line is arranged between the two walls of the partition wall, which connects the filling chamber and the expansion chamber with each other.
  • the connecting line is integrated into the coolant expansion tank through this configuration, which is particularly advantageous for the manufacture and the functional reliability of the coolant expansion tank, on the other hand, by integrating the connecting line between the two walls of the test chamber, it is achieved that during the leak test of the coolant expansion tank and in particular that Partition at the same time the connecting line is checked for leaks. If the connection line is leaking, test equipment emerges from the connection line into the test room, which, as already described, can be determined.
  • the coolant expansion tank consists of at least two housing parts which are joined along a parting line forming a parting plane. If the parting plane intersects the partition, the tightness of the parting plane of the parting plane, which cuts the partition, is checked for tightness at the same time as the leakage test of the partition.
  • the coolant expansion tank it is therefore not necessary to pay attention to how the parting plane runs, since even if a joint cuts the partition and the possibility of the partition leaking due to a leaking joint is increased, such a leak can be reliably determined.
  • coolant expansion tank Another advantage of the coolant expansion tank according to the invention is that the design of the filler chamber and the expansion chamber, the arrangement and design of the walls forming the test room, the design and the course of the connecting line within the test room as well as the position of the parting plane of the two housing halves of the coolant expansion tank are completely arbitrary is selectable. The same che applies to the way in which the coolant expansion tank is manufactured. It is particularly advantageous to produce the coolant expansion tank as an injection molded part made of plastic.
  • coolant which has been heated in the cooling jacket of the internal combustion engine, is pumped through a heat exchanger for cooling.
  • a coolant expansion tank connected to the pump.
  • This has the task of absorbing the volume expansion that occurs due to the heating of the coolant, which u. a. is achieved by dividing the coolant expansion tank into a replenishment chamber and an expansion chamber.
  • the coolant expansion tank has the task of making it possible to separate gas bubbles that may have formed from heating from the coolant. This will u. a. thereby achieved that the circulation speed of the coolant through the coolant expansion tank is significantly slower than in the actual cooling circuit, so that the separation of gas bubbles from the coolant can take place within the coolant expansion tank.
  • the coolant expansion tank 90 which is provided for installation in a motor vehicle.
  • the installation position of the coolant expansion tank 90 in the motor vehicle corresponds to the position shown in FIG. 1.
  • the coolant expansion tank 90 consists essentially of a filling chamber 10 and an expansion chamber 11, which are connected to one another via a connecting line 13.
  • the filling chamber 10 is arranged in the right area of the coolant expansion tank 90, while the expansion chamber 11 is in the left area.
  • the connecting line 13 is provided in the middle of the coolant expansion tank 90 and has an S-shaped shape.
  • the long side 71 of the coolant expansion tank 90 shown in FIG. 1 has an essentially elongated rectangular shape. Overall, the coolant expansion tank 90 is essentially a rectangular cuboid.
  • a round filler neck 15 is attached obliquely to the right end 40 of the same, which is closed with a removable cover 16.
  • two round inlet sockets are arranged one below the other on the front side 40.
  • a round suction port 26 is approximately in the middle of the area of the filling chamber 10. This, as well as the inlet connection 25, project perpendicularly from the coolant expansion tank 90 and have a constant diameter.
  • Coolant can be filled or refilled into the filling chamber 10 via the filler neck 15, coolant is supplied to the filling chamber 10 from the heat exchanger and / or the cooling jacket of the internal combustion engine via the inlet nozzle 25, and coolant is sucked out of the filling chamber 10 by the pump via the suction nozzle 26 .
  • a round valve stub 18 is attached to the top 41 thereof, which is closed, for example, by a cover 19 which can be opened rotatably.
  • the valve stub 18 is connected to the expansion chamber 11 so that a pressure valve integrated in the cover 19 opens at a predeterminable pressure in the expansion chamber 11 and coolant emerges from the coolant expansion tank 90 via an overflow line 20 connected to the pressure relief valve until the pressure relief valve due to a pressure reduction closes again.
  • the connecting line 13 leads from an upper region 35 of the filling chamber 10 to a lower region 36 of the expansion chamber 11. It is arranged essentially vertically in the center of the coolant expansion tank 90 and via a channel 37 to the above-mentioned upper region 35 and via a channel 38 said lower region 36 connected.
  • the channels 37 and 38 run essentially horizontally, which results in the aforementioned S-shape of the connecting line 13.
  • the channel 37 is arranged higher than the filling chamber 10. This is achieved in that the outer wall 60 of the channel 37 projects beyond the outside 41 of the coolant expansion tank 90. Analogously to this, the outer wall 61 of the channel 38 is also formed to protrude beyond the underside 42 of the coolant expansion tank 90. This ensures that when the coolant cools, all the coolant can be withdrawn from the expansion chamber 11 into the filling chamber 10 by negative pressure.
  • the connecting line 13 is arranged vertically in the middle of the coolant expansion tank 90. Its left outer wall is identified in FIG. 1 with the reference number 51, its right outer wall with 52. Parallel to these two outer walls 51 and 52 of the connecting line 13, two walls 50 and 53 are provided, the wall 50 being the expansion mer 11 on its right side and the wall 53 limits the replenishment chamber 10 on its left side.
  • the walls 50 and 51 and the walls 52 and 53 are each connected to one another. As a result, the walls 50 and 51 enclose a test room section 55 of a test chamber 58 and the walls 52 and 53 enclose a test room section 56 of the test chamber 58.
  • the right test chamber section 56 which is adjacent to the filling chamber 10, has an opening 66 at its end adjoining the underside 42 of the coolant expansion tank 90, via which opening it is connected to the outside of the coolant expansion tank 90.
  • the test chamber section 55 adjoining the expansion chamber 11 has a corresponding opening 65 at its upper end located on the upper side 41 of the coolant expansion tank 90.
  • the coolant expansion tank 90 shown in FIG. 1 consists of two housing halves 45 and 46. These are joined together along a parting line 30.
  • the parting line 30 runs horizontally approximately in the middle of the coolant expansion tank 90.
  • the parting line 30 divides the filling chamber 10, the expansion chamber 11 and the connecting line 13 each into two parts.
  • the parting line 30 is identified by special reference numerals.
  • the parting line of the wall 50 is identified by the reference number 80, the wall 51 by the reference number 81, the wall 52 by the reference number 82 and the wall 53 by the reference number 83. All parting lines 30, 80, 81, 82 and 83 are on the division level already mentioned.
  • FIG. 2 shows the view of the left end face 43 of the coolant expansion tank 90 of FIG. 1.
  • This end face 43 has a rectangular shape and is formed by the top side 41, the underside 42, the long side 71 visible in FIG. 1 and the long side 70 limited.
  • the position of the filler neck 15 in the region of the long side 71, the position of the valve neck 18 adjacent to the long side 70, the position of the inlet neck 25 underneath and the central position of the suction neck 26 can be seen in FIG. 2.
  • FIG. 2 also shows the outer walls 60 and 61 of the channels 37 and 38, which protrude beyond the top 41 and bottom 42 of the coolant expansion tank 90.
  • the outer walls 60 and 61 do not extend over the entire width of the end face 40, that is to say not from the long side 70 to the long side 71 of the coolant expansion tank 90, but only over a smaller area in the middle of the top 41 and bottom 42.
  • FIG. 3 shows the walls 50, 51, 52 and 53 again, which enclose the test space sections 55 and 56. While the walls 51 and 52 are outer walls of the connecting line 13, the walls 50 and 53 extend over the entire width of the coolant expansion tank 90, that is to say from the long side 70 to the long side 71. As a result, the test space sections 55 and 56 unite on both sides of the connecting line 13 to each test chamber section 57 of the test chamber 58.
  • the walls 50 and 53 in the area of the connecting line 13 are designed to be arcuate, so that they run parallel to one another outside the connecting line 13.
  • the test space section 57 is delimited on the long side 70 of the coolant expansion tank 90 by a wall 62 and on the long side 71 by a wall 63.
  • test room section 57 is by a wall 68 and on the upper side 41 by a wall 69 limited. Due to the direction of view of the sectional plane A-A of FIG. 1, the opening 66 of the test room section 56 can be seen in FIG. 3, while the opening 65 of the test room section 55 is located above the drawing plane of FIG. 3.
  • FIG. 4 shows the test space section 57 in a section along the plane B-B of FIG. 3.
  • 4 corresponds in principle to the partial section of FIG. 1, but in FIG. 1 the partial section has been carried out along a plane intersecting the connecting line 13.
  • 4 shows the walls 50 and 53, which enclose the test space section 57, and the two housing halves 45 and 46, which form the parting lines 80 and 83 in the area of the walls 50 and 53.
  • openings 77 and 78 are also shown in FIG. 4, which are located in the wall 68 on the underside 42 of the coolant expansion tank 90 and in the wall 69 of the top 41 of the same. Due to the direction of view of the sectional plane B-B of FIG. 3, the openings 77 can also be seen in FIG. 3.
  • a test agent is filled into the same, possibly with overpressure. If one of the outer walls of the coolant expansion tank is leaking, the test agent will leak at this point, which means that the leak can be recognized immediately. If, on the other hand, the connecting line 13 or one of the two walls 50 and 53 of the expansion chamber 11 and the filling chamber 10 is leaking, the test medium exits in at least one of the test space sections 55, 56 and 57. From there it passes through at least one of the openings 65, 66, 77 or 78 from the test area sections mentioned and can thus be determined from the outside. The leakage of the connecting line and / or one of the partitions of the coolant expansion tank 90 can thus be recognized. Both checks can be carried out in the same operation. The task of an inspector in this operation is to fill in the inspection equipment and to monitor whether inspection equipment escapes on the outer walls or at the openings of the coolant expansion tank 90.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP86112140A 1985-09-17 1986-09-02 Kühlmittelausgleichsbehälter, insbesondere für Kraftfahrzeugverbrennungsmotoren Expired - Lifetime EP0215370B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853533095 DE3533095A1 (de) 1985-09-17 1985-09-17 Kuehlmittelausgleichsbehaelter, insbesondere fuer kraftfahrzeugverbrennungsmotoren
DE3533095 1985-09-17

Publications (3)

Publication Number Publication Date
EP0215370A2 EP0215370A2 (de) 1987-03-25
EP0215370A3 EP0215370A3 (en) 1988-07-06
EP0215370B1 true EP0215370B1 (de) 1990-03-14

Family

ID=6281157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112140A Expired - Lifetime EP0215370B1 (de) 1985-09-17 1986-09-02 Kühlmittelausgleichsbehälter, insbesondere für Kraftfahrzeugverbrennungsmotoren

Country Status (4)

Country Link
US (1) US4739730A (pt)
EP (1) EP0215370B1 (pt)
BR (1) BR8604421A (pt)
DE (2) DE3533095A1 (pt)

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SE469140B (sv) * 1991-09-20 1993-05-17 Volvo Ab Anordning vid kombinerat magasin (16) och expansionskaerl (19) foer en vaetskefyld foerbraenningsmotors kylsystem
DE4228856B4 (de) * 1992-08-29 2004-07-22 Deutz Ag Flüssigkeitsgekühlte Brennkraftmaschine
DE4231846C2 (de) * 1992-09-23 1995-04-13 Bayerische Motoren Werke Ag Verdampfungskühlsystem für eine Brennkraftmaschine
US5680833A (en) * 1996-12-23 1997-10-28 Chrysler Corporation Combination coolant deaeration and overflow bottle
US6176205B1 (en) 1999-04-01 2001-01-23 Daimlerchrysler Corporation Pressurization of the engine cooling system
US6708653B2 (en) * 2001-04-27 2004-03-23 Bombardier Recreational Products Inc. Fluid reservoir
ATE335921T1 (de) 2001-05-23 2006-09-15 Mann & Hummel Gmbh Behälter für das kühlmittel einer brennkraftmaschine
GB0318402D0 (en) * 2003-08-06 2003-09-10 Ford Global Tech Llc Cooling system expansion tank
US7343884B1 (en) * 2006-09-13 2008-03-18 Cummins Power Generation Inc. Coolant system for hybrid power system
US7552839B2 (en) * 2006-09-13 2009-06-30 Cummins Power Generation Inc. Fluid tank with clip-in provision for oil stick tube
US7377237B2 (en) * 2006-09-13 2008-05-27 Cummins Power Generation Inc. Cooling system for hybrid power system
US20080060370A1 (en) * 2006-09-13 2008-03-13 Cummins Power Generation Inc. Method of cooling a hybrid power system
US8038878B2 (en) * 2008-11-26 2011-10-18 Mann+Hummel Gmbh Integrated filter system for a coolant reservoir and method
US20100206882A1 (en) * 2009-02-13 2010-08-19 Wessels Timothy J Multi chamber coolant tank
US20110062163A1 (en) * 2009-09-16 2011-03-17 Mann+Hummel Gmbh Multi-layer coolant reservoir
US9186979B2 (en) * 2012-10-15 2015-11-17 Mann + Hummel Gmbh Reservoir for reducing aeration of a fluid
DE102013016294A1 (de) * 2012-10-15 2014-04-17 Mann + Hummel Gmbh Behälter zur Reduzierung des Lufteintrags in ein Fluid
JP6475000B2 (ja) * 2014-11-20 2019-02-27 トヨタ自動車株式会社 ラジエータ用リザーバタンク及びラジエータ構造
DE102016006662A1 (de) 2016-06-01 2017-12-07 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Ausgleichsbehälter für einen Kühlmittelkreislauf eines Kraftfahrzeugs
DE102017123385A1 (de) * 2017-10-09 2019-04-11 Volkswagen Aktiengesellschaft Kühlsystem für ein Fahrzeug
KR102317609B1 (ko) * 2018-09-11 2021-10-25 바르실라 핀랜드 오이 액체 냉각제를 위한 구획화된 헤더 탱크, 다중 엔진 헤더 탱크 배열체 및 이러한 다중 엔진 헤더 탱크 배열체를 장착한 발전소 및 해양 선박
CN109184893B (zh) * 2018-11-22 2021-02-09 卡特彼勒S.A.R.L公司 发动机冷却系统和用于其中的箱体以及作业机械
DE102019115464A1 (de) * 2019-06-07 2020-12-10 Volkswagen Aktiengesellschaft Ausgleichbehälter für einen Fluidkreislauf
KR20210076445A (ko) * 2019-12-16 2021-06-24 현대자동차주식회사 자동차용 통합 리저버
JP7306288B2 (ja) * 2020-02-07 2023-07-11 トヨタ車体株式会社 リザーブタンク
US20230366340A1 (en) * 2020-09-28 2023-11-16 Hanon Systems Water supply module integrated with reservoir tank
DE102021102022A1 (de) 2021-01-29 2022-08-04 HELLA GmbH & Co. KGaA Flüssigkeitstank für ein Flüssigkeitssystem eines Fahrzeugs, Flüssigkeitssystem und Fahrzeug

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Also Published As

Publication number Publication date
DE3669560D1 (de) 1990-04-19
DE3533095A1 (de) 1987-03-19
EP0215370A3 (en) 1988-07-06
US4739730A (en) 1988-04-26
EP0215370A2 (de) 1987-03-25
BR8604421A (pt) 1987-05-12

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