EP0791733B1 - Dispositif d'expansion à chambres multiples pour circuit de refroidissement/chauffage de véhicule - Google Patents
Dispositif d'expansion à chambres multiples pour circuit de refroidissement/chauffage de véhicule Download PDFInfo
- Publication number
- EP0791733B1 EP0791733B1 EP97102247A EP97102247A EP0791733B1 EP 0791733 B1 EP0791733 B1 EP 0791733B1 EP 97102247 A EP97102247 A EP 97102247A EP 97102247 A EP97102247 A EP 97102247A EP 0791733 B1 EP0791733 B1 EP 0791733B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- casing
- edge
- duct
- groove
- 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
Links
Images
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
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/026—Thermostatic control
-
- 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
- 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
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
-
- 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
- F01P2025/00—Measuring
- F01P2025/04—Pressure
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/06—Fastening; Joining by welding
Definitions
- the invention relates to an expansion device for a fluid. coolant circulating in a circuit as known from document EP-A-215 369.
- Such an expansion device is intended to absorb the variations in the volume of the heat transfer fluid during operation of the circuit, these variations in volume being due to variations in fluid temperature and, where applicable, at its changes of state in the case of a working fluid in the liquid state and in the gaseous state.
- the gas phase present above the liquid in the first chamber, and that can pass into the second bedroom, is made up of air and / or, if applicable, heat transfer fluid in the state gaseous.
- the presence of the second chamber reduces the height available in the first room above the minimum level of liquid, which must be locate above the entire cooling / heating circuit, and therefore reduces the space requirement system height.
- the third chamber collects and condenses the fluid heat carrier in gaseous state which can escape from the second bedroom.
- the opening pressure of the first valve corresponds to the maximum normal operating pressure of the circuit, and the opening pressure of the second valve corresponds to a pressure not to be exceeded for reasons of security.
- the different rooms are defined by housings separate, connected together by pipes in the form of separate tubing.
- the object of the invention is to simplify the structure and the operations for producing the expansion device, and reduce its size.
- the invention relates in particular to a device as defined in claim 1.
- the housing 1 shown in the figures has a general shape cylindrical of revolution having a side wall tubular 2 and two end walls 3 and 4 (respectively right and left in figure 1) whose regions are central and perpendicular to axis 5 of the housing and are connected to the side wall 2 by rounded regions.
- the case is made up of two parts hollow 6 and 7 substantially semi-cylindrical in material molded plastic with thickened peripheral edges respective 8 and 9 by which they are mutually assembled by heat sealing to form a sealed enclosure liquids and gases, divided from right to left into three rooms 10, 11 and 12 by transverse partitions 13 and 14 also formed by the welded assembly of the two parts, the partition 14 being curved on the side of the chamber 12.
- edges 8 and 9 are joined in a vertical joint plane P1 which is roughly confused with the vertical plane P2 passing by the axis 5.
- the edges 8 and 9 of the parts 6 and 7 form a belt 15 projecting from the adjacent regions of the housing, surrounding it on its upper sides and lower and on its ends 3 and 4.
- the belt 15 protrudes from of respective horizontal flats 16 and 17, and is part of the circular profile of the tubular wall 2.
- the edge 8 has a fork-shaped profile, both of which branches 18 and 19 each have a width equal to the thickness general of the walls of the case.
- the inner branch 18 is arranged in alignment with the adjacent regions of the wall of the housing, and in particular of the flats 16 and 17 on the upper and lower sides, and the outer branch 19 is substantially parallel to the inner branch 18.
- the interval between the two branches defines a groove 20.
- the edge 9 of the part 7 has a thickness equal to that from edge 8 and comes into tight contact, by welding, with the free ends of branches 18 and 19, thus closing the groove 20.
- notches are provided in the inner branch 18 edge 8, i.e. two notches 21 and 22 on the side upper case, respectively to the right of the partition 13 and between partitions 13 and 14, and two notches 23 and 24 on the lower side, respectively between the partitions 13 and 14 and to the left of the partition 14.
- the groove is interrupted locally by five bridges of material produced during the molding of part 6, namely four bridges 25 to 28 located respectively immediately to the left of notch 21, immediately to the right of notch 22, immediately to left of notch 23 and immediately right of notch 24, and a bridge 29 located halfway up the end face 4 of the housing.
- These five bridges delimit in length groove device 20 a first pipe 31 extending to the right along the upper side of the housing from deck 25, then down along the end face 3 and to the left along the bottom side up to bridge 27, and communicating upstream with the chamber 10 by notch 21 and downstream with chamber 11 by the notch 23; a second pipe 32 extending towards the left along the top side of the case from the bridge 26, then down along the end face 4 up to bridge 29, and communicating upstream with room 11 by the notch 22; a third pipe 33 extending towards down along face 4 from deck 29, then towards right along the lower side to bridge 28, and communicating downstream with the chamber 12 by the notch 24.
- the pipes 32 and 33 are completed by two cavities 34 and 35 also formed in a thickened region of the wall of the housing, on its end face 4, and communicating the groove 20, above and below deck 29, with the entrance and the outlet respectively of a limitation valve pressure 36.
- the valve 36 comprises known elements, not shown in particular, allowing the passage of gas from line 32 to line 33 only when the pressure in the first of them exceeds a determined value, here 0.4 bar, these elements being housed in a delimited space by an annular wall 37 coming from molding with the part 7, and projecting outward from the housing from its end face 4, and by a removable plug 38.
- the portions 39 and 40 of the groove 20 included respectively between bridges 25 and 26 and between bridges 27 and 28 constitute isolated cavities.
- the edge profile 8 of part 6 has a third branch 41 parallel to the branch 18 and offset towards the inside of the case by relative to it, which is separated from it by a groove 42.
- the groove 42 is closed, in the same way as groove 20, by a region thickened as a consequence of the edge 9 of the part 7.
- the groove 42 communicates with the chamber 12 at its end upper and is interrupted halfway up face 4 by a material bridge 43 extending the bridge 29. It communicates with the input of a limit valve pressure 44 by a cavity 45 similar to cavities 34 and 35, but located towards the inside of the case relative to the plane general of side 4.
- the valve 44 is similar to the valve 36, but adjusted for an opening pressure of 0.7 bar. It is arranged symmetrically to the valve 36 by compared to the P2 plane, and its exit communicates with the atmosphere.
- the housing 1 has a tubing of filling 46 communicating with chamber 10 and provided with a cap 47.
- Chamber 10 also communicates through an orifice inlet and outlet port not shown with the cooling / heating circuit with which the present expansion device.
- the grooves defining the pipes can be arranged in both parts forming the housing, the joint plane P1 coinciding then with the plane of symmetry P2.
- the two bridges 25 and 26 delimiting a neutral portion 39 of the groove 20 can be replaced by a single bridge arranged between the notches 21 and 22, and similarly for bridges 27 and 28.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Housings (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Air-Conditioning For Vehicles (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9602067 | 1996-02-20 | ||
FR9602067A FR2745069B1 (fr) | 1996-02-20 | 1996-02-20 | Dispositif d'expansion a chambres multiples pour circuit de refroidissement/chauffage de vehicule |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0791733A1 EP0791733A1 (fr) | 1997-08-27 |
EP0791733B1 true EP0791733B1 (fr) | 2002-11-13 |
Family
ID=9489384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97102247A Expired - Lifetime EP0791733B1 (fr) | 1996-02-20 | 1997-02-12 | Dispositif d'expansion à chambres multiples pour circuit de refroidissement/chauffage de véhicule |
Country Status (6)
Country | Link |
---|---|
US (1) | US5829268A (pt) |
EP (1) | EP0791733B1 (pt) |
KR (1) | KR970062274A (pt) |
BR (1) | BR9701014A (pt) |
DE (1) | DE69716980T2 (pt) |
FR (1) | FR2745069B1 (pt) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102635432A (zh) * | 2012-05-14 | 2012-08-15 | 山东统亚塑料制品有限公司 | 节能环保汽车膨胀水箱 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5971062A (en) * | 1998-07-22 | 1999-10-26 | Salflex Polymers Ltd. | Fan shroud with integrated reservoirs |
US6216646B1 (en) * | 1999-12-23 | 2001-04-17 | Daimlerchrysler Corporation | Deaeration bottle for liquid cooling systems for automotive vehicle engines |
DE50207761D1 (de) | 2001-05-23 | 2006-09-21 | 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 |
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 |
DE102009041165A1 (de) * | 2009-09-11 | 2011-03-24 | Bayerische Motoren Werke Aktiengesellschaft | Flüssigkeitsausgleichsbehälter |
US20110062163A1 (en) * | 2009-09-16 | 2011-03-17 | Mann+Hummel Gmbh | Multi-layer coolant reservoir |
FR2953465B1 (fr) * | 2009-12-03 | 2011-11-18 | Peugeot Citroen Automobiles Sa | Boite de degazage de circuit de liquide de vehicule |
DE102018102235A1 (de) * | 2018-02-01 | 2019-08-01 | Man Truck & Bus Ag | Ausgleichsbehälter für Kühlkreisläufe mit unterschiedlichem Temperaturniveau und Druckaddition |
DE102019115464A1 (de) * | 2019-06-07 | 2020-12-10 | Volkswagen Aktiengesellschaft | Ausgleichbehälter für einen Fluidkreislauf |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US4480598A (en) * | 1983-09-22 | 1984-11-06 | William C. Neils | Coolant recovery and de-aeration system for liquid-cooled internal combustion engines |
DE3446007C2 (de) * | 1983-12-28 | 1995-09-14 | Valeo | Wasserkasten und Ausdehnungsgefäß für einen Wärmetauscher eines Verbrennungsmotors |
DE3527700A1 (de) * | 1985-08-02 | 1987-02-12 | Iveco Magirus | Betriebsmittelbehaelter in kraftfahrzeugen |
DE3533094A1 (de) * | 1985-09-17 | 1987-03-26 | Sueddeutsche Kuehler Behr | Ausgleichsbehaelter fuer kuehlfluessigkeit |
DE4025067C1 (pt) * | 1990-08-08 | 1991-07-11 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | |
US5252354A (en) * | 1992-05-20 | 1993-10-12 | Donnelly Corporation | Method for depositing electrochromic layers |
US5329889A (en) * | 1993-11-22 | 1994-07-19 | Molmec, Inc. | Degas tank for engine cooling system |
FR2722834B1 (fr) * | 1994-07-21 | 1996-09-06 | Valeo Thermique Moteur Sa | Module de degazage et de circulation de fluide pour circuit de refroidissement d'un moteur |
-
1996
- 1996-02-20 FR FR9602067A patent/FR2745069B1/fr not_active Expired - Lifetime
-
1997
- 1997-02-12 DE DE69716980T patent/DE69716980T2/de not_active Expired - Lifetime
- 1997-02-12 EP EP97102247A patent/EP0791733B1/fr not_active Expired - Lifetime
- 1997-02-19 BR BR9701014A patent/BR9701014A/pt not_active IP Right Cessation
- 1997-02-19 US US08/802,375 patent/US5829268A/en not_active Expired - Lifetime
- 1997-02-20 KR KR1019970005092A patent/KR970062274A/ko not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102635432A (zh) * | 2012-05-14 | 2012-08-15 | 山东统亚塑料制品有限公司 | 节能环保汽车膨胀水箱 |
Also Published As
Publication number | Publication date |
---|---|
BR9701014A (pt) | 1998-11-03 |
KR970062274A (ko) | 1997-09-12 |
US5829268A (en) | 1998-11-03 |
FR2745069A1 (fr) | 1997-08-22 |
FR2745069B1 (fr) | 1998-04-10 |
DE69716980D1 (de) | 2002-12-19 |
EP0791733A1 (fr) | 1997-08-27 |
DE69716980T2 (de) | 2003-07-17 |
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