EP2037116A1 - Multifunktionsmodul für einen Verbrennungsmotor - Google Patents

Multifunktionsmodul für einen Verbrennungsmotor Download PDF

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Publication number
EP2037116A1
EP2037116A1 EP08164192A EP08164192A EP2037116A1 EP 2037116 A1 EP2037116 A1 EP 2037116A1 EP 08164192 A EP08164192 A EP 08164192A EP 08164192 A EP08164192 A EP 08164192A EP 2037116 A1 EP2037116 A1 EP 2037116A1
Authority
EP
European Patent Office
Prior art keywords
engine
tank
tubes
module according
heat exchanger
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.)
Granted
Application number
EP08164192A
Other languages
English (en)
French (fr)
Other versions
EP2037116B1 (de
EP2037116B8 (de
Inventor
Cédric Fioschatti
Sylvain Muller
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.)
Sogefi Air and Cooling SAS
Original Assignee
Mark IV Systemes Moteurs SAS
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 Mark IV Systemes Moteurs SAS filed Critical Mark IV Systemes Moteurs SAS
Publication of EP2037116A1 publication Critical patent/EP2037116A1/de
Publication of EP2037116B1 publication Critical patent/EP2037116B1/de
Application granted granted Critical
Publication of EP2037116B8 publication Critical patent/EP2037116B8/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/23—Layout, e.g. schematics
    • F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/23—Layout, e.g. schematics
    • F02M26/25—Layout, e.g. schematics with coolers having bypasses
    • F02M26/26—Layout, e.g. schematics with coolers having bypasses characterised by details of the bypass valve
    • 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
    • F01P11/04—Arrangements of liquid pipes or hoses
    • 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
    • F01P2025/08—Temperature
    • F01P2025/34—Heat exchanger incoming fluid temperature

Definitions

  • the present invention concerns the field of parts and equipment for motor vehicles, more particularly the peripheral or accessory systems of internal-combustion engines of such vehicles, and its subject matter concerns a multifunctional module.
  • This object of this invention is to meet at least some of the expectations described above.
  • the subject matter of the present invention concerns a multifunctional module for an internal-combustion engine, forming a structural assembly and incorporating the functions of cooling the exhaust gases, regulating the re-injection of the exhaust gases and regulating, at least in part, the circulation flows in the cooling circuit of the said engine, the said structural assembly being made in the form of a structural and operational unit, intended to be mounted on the engine block and incorporating at least a part of an exhaust-gas recirculation circuit, a heat exchanger for cooling the said gases and at least a part of the engine-cooling circuit, incorporating at least the water-outlet housing, characterised in that the exhaust-gas recirculation circuit part and the engine-cooling circuit part are incorporated in separate structural elements of the said structural and operational unit.
  • the multifunctional module for an internal-combustion engine forming a structural assembly incorporating the functions of cooling the exhaust gases, regulating the re-injection of the exhaust gases and regulating, at least in part, the circulation flow in the cooling circuit of the said engine, is made in the form of a structural and operational unit 1, intended to be mounted on the engine block, and incorporates at least a part of an exhaust-gas recirculation circuit, a heat exchanger 2 for cooling the said gases and at least a part of the engine-cooling circuit, incorporating at least the water-outlet housing 3.
  • This multifunctional module 1 is characterised in that the exhaust-gas recirculation circuit part and the engine-cooling circuit part are incorporated in separate structural elements 4, 3, 5, 6 of the said structural and operational unit 1.
  • This invention provides a multifunctional module forming a structural and operational unit 1 incorporating, on the one hand, the functions of cooling and regulating the re-injection of exhaust gases and, on the other, the function of adjusting the circulation flow in the cooling circuit of the said engine.
  • This multifunctional module 1 is of a limited size and can be mounted directly on the engine, as will be explained below. Furthermore, the exhaust-gas recirculation and cooling circuits are separate and incorporated in different structural elements, so that the latter can be made of different materials.
  • the exhaust-gas recirculation circuit part can be incorporated in a central metal element 4 of the structural and operational unit 1 and the exhaust-gas or engine-cooling circuit part can be made of a thermoplastic synthetic material and be mounted on the said central element 4.
  • the metal used to make the central element 4 may be stainless steel, for example.
  • Using a synthetic material to make part of the cooling circuit increases the weight of the structural and operational unit on the one hand and, on the other, cuts its production costs, and also increases its flexibility, which is particularly advantageous when assembling together the elements that form the said structural and operational unit 1.
  • the engine-cooling circuit part can be made in the form of a one-piece structural subassembly 3, 5, 6 formed by assembling two parts made by injection-moulding thermoplastic synthetic material.
  • the engine-cooling circuit part can be made by assembling at least two parts 3, 5, 6.
  • parts 3, 5, 6 can be made in the form of tubular elements or pipes optionally connected together by vibration welding. Furthermore, the arrangement thereof forms the water outlet housing 3.
  • the structural and operational unit 1 can be of a substantially elongated shape and essentially made by assembling three elements, namely:
  • the heat exchanger 2 can be made in the form of a metal tank 16 having an inlet opening 10 for the coolant and an outlet opening 11 for the coolant, a bundle 13 of tubes 14 in which the exhaust gases circulate being mounted and located in said tank 16.
  • stainless steel may be used to make the tank 16.
  • This Figure also shows the circulation of the coolant in the multifunctional module 1 by means of arrows.
  • the arrows shown by a thicker line correspond to the flow of liquid that has passed through the tank 16, and which has therefore recovered some of the calories of the exhaust gases in the heat exchanger 2, so that it has a higher temperature on leaving the heat exchanger 2 than on entering it.
  • the heat exchanger 2 is preferably located near the gas-inlet opening 8, so that the hot exhaust gases do not pass through the multifunctional module 1 over a long distance, thus avoiding too great an increase in temperature due to the exhaust gases leaving the engine being directly admitted into the said multifunctional module 1.
  • a module 15 forming a reserve vacuum made of a thermoplastic synthetic material and capable of being used to control or supply power or pneumatic energy to a regulating device 9 and/or to a gas-flow diversion device 17 of a pneumatic or electro-pneumatic type can be mounted on the tank 16 of the heat exchanger 2.
  • the need to incorporate a specific vacuum reservoir, in the bonnet, by means of special fixing devices, is thus avoided.
  • Module 15 forming a reserve vacuum can be made in a general U shape in which the internal surfaces of the wings and the core have elements or a protrusion 21 that engage with the corresponding faces of the tank 16 of the heat exchanger 2 when the said module 15 is in its assembled position. As shown in Figure 7 , these protruding elements 21 can be made in the form of ribs. The latter allow heat insulation to be achieved between the metal tank 16 of the heat exchanger 2 and the module 15 made of synthetic material by creating insulating air spaces between the walls thereof.
  • the coolant inlet opening 7 can be connected fluidly to the water-outlet housing 3 by means of a pipe 12 formed in and passing through the central element 4 perpendicular to the longitudinal axis thereof and the water outlet housing 3 can be connected to the inlet opening 10 of the tank 16 of the heat exchanger 2 by means of a pipe 5, formed in the one-piece sub-assembly 3, 5, 6 constituting the engine-cooling circuit part or corresponding to one 5 of the pieces 3, 5, 6 assembled to create the engine-cooling circuit part.
  • a pipe 6, formed in the one-piece sub-assembly 3, 5, 6 constituting the engine-cooling circuit part or corresponding to one 6 of the parts 3, 5, 6 assembled to create the engine-cooling circuit part, can be connected to the outlet opening 11 of the tank 16 of the heat exchanger 2 to evacuate the water from the said tank 16.
  • the heat exchanger 2 may comprise a bundle 13 of tubes 14 mounted in the tank 16 of the heat exchanger 2 by means of a supporting body 20 creating a seal at the assembly interface between the tank 16 and the central element 4 and closing the said tank 16 of the heat exchanger 2, and the bundle 13 of tubes 14 can form a U-shaped circulation path for the exhaust gases in the tank 16 and may be made up of a first group of feed tubes 14, in which the exhaust gases circulate from the first end 14' of the tubes 14 located at the opening of the tank 16 and the supporting body 20 towards the second end 14" of the tubes 14 located at the bottom of the tank 16, and of a second group of return tubes 14, in which the exhaust gases circulate from the second end 14" of the tubes 14 located at the bottom of the tank 16 towards the first end 14' of the tubes 14 located at the opening of the tank 6 and the supporting body 20.
  • the second ends 14" of the tubes 14 may emerge into a common volume ensuring fluid communication between the first group and the second group of tubes 14, the said volume comprising for example a capsule shut off by a plate, the said plate being passed through by the second ends 14" of the tubes 14.
  • the tubes 14 of the heat exchanger 2 may be made in one piece and bent into a U-shape or may each be formed by two portions of straight tubes connected together by a portion of bent tube.
  • the exhaust-gas inlet opening 8 may be in fluid communication with the inlet ends of the tubes 14 by means of a channel made in the central element 4 and with a gas-outlet opening 19 located in the central element 4 via a gas through-passage 18, also made in the central element 4, and a device 17 for diverting the flow of gas may be mounted in the gas-inlet opening 8.
  • Figure 4 shows in solid lines the situation in which the exhaust gases are directed towards the tank 16 of the heat exchanger 2 to achieve cooling thereof.
  • the flow of these gases is also shown in Figure 6 in which the arrows with the thicker line represent the exhaust gases before they pass into the heat exchanger 2.
  • the multifunctional module 1 makes it possible to achieve, without cooling the exhaust gases, rapid heating of the engine after a cold start. Under these conditions, the path followed by the exhaust gases corresponds to that indicated by the arrows shown in Figure 5 . In the circuit shown in Figure 4 , the path followed is that shown by the dotted lines.
  • the outlet opening 19 can be arranged level with the structural and operational unit 1 so that when the latter is mounted on an engine, the said outlet opening 19 is in position to be mounted directly on the inlet manifold of the engine.
  • the multifunctional module 1 may comprise a device for thermostatically adjusting the flow of fluid into the water outlet housing 3. This device can thus adjust the circulation of the coolant between the multifunctional module circuit 1, the passenger-compartment exchanger and the radiator.
  • the multifunctional module 1 By means of the invention, it is possible to create a multifunctional module whose manufacturing cost is reduced by making some elements thereof of a thermoplastic synthetic material while making optimum use of the space occupied under the bonnet, given that the multifunctional module 1 incorporates part of the exhaust-gas recirculation circuit as well as part of the engine-cooling circuit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP08164192A 2007-09-12 2008-09-11 Multifunktionsmodul für einen Verbrennungsmotor Active EP2037116B8 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0757538A FR2920706B1 (fr) 2007-09-12 2007-09-12 Module multifonctionnel pour moteur a combustion interne

Publications (3)

Publication Number Publication Date
EP2037116A1 true EP2037116A1 (de) 2009-03-18
EP2037116B1 EP2037116B1 (de) 2012-02-15
EP2037116B8 EP2037116B8 (de) 2012-04-04

Family

ID=39302099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08164192A Active EP2037116B8 (de) 2007-09-12 2008-09-11 Multifunktionsmodul für einen Verbrennungsmotor

Country Status (2)

Country Link
EP (1) EP2037116B8 (de)
FR (1) FR2920706B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104343582A (zh) * 2013-08-07 2015-02-11 大众汽车有限公司 用于发动机的功能模块

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3232043B1 (de) 2016-04-14 2018-06-06 FCA Italy S.p.A. Multifunktionsmodul für eine brennkraftmaschine eines kraftfahrzeugs
JP7541838B2 (ja) * 2020-03-13 2024-08-29 ヤンマーパワーテクノロジー株式会社 エンジン

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6116026A (en) * 1998-12-18 2000-09-12 Detroit Diesel Corporation Engine air intake manifold having built-in intercooler
WO2001020156A1 (en) * 1999-09-16 2001-03-22 Transtec Plc Exhaust gas recirculation system
DE10119484A1 (de) * 2001-04-20 2002-10-24 Bayerische Motoren Werke Ag Flüssigkeitsgekühlte Brennkraftmaschine mit einem Abgasrückführsystem
FR2870893A1 (fr) * 2004-05-25 2005-12-02 Mark Iv Systemes Moteurs Sa Module d'admission d'air integre et son procede de fabrication
FR2875540A1 (fr) * 2004-09-20 2006-03-24 Mark Iv Systemes Moteurs Sa Module multifonctionnel, vehicule a moteur comportant un tel module et procede de fabrication d'un tel module
WO2007000541A2 (fr) * 2005-06-09 2007-01-04 Renault S.A.S Dispositif de chauffage additionnel d'un vehicule automobile
FR2894295A1 (fr) * 2005-12-01 2007-06-08 Mark Iv Systemes Moteurs Soc P Module multifonctionnel pour moteur a combustion interne

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6116026A (en) * 1998-12-18 2000-09-12 Detroit Diesel Corporation Engine air intake manifold having built-in intercooler
WO2001020156A1 (en) * 1999-09-16 2001-03-22 Transtec Plc Exhaust gas recirculation system
DE10119484A1 (de) * 2001-04-20 2002-10-24 Bayerische Motoren Werke Ag Flüssigkeitsgekühlte Brennkraftmaschine mit einem Abgasrückführsystem
FR2870893A1 (fr) * 2004-05-25 2005-12-02 Mark Iv Systemes Moteurs Sa Module d'admission d'air integre et son procede de fabrication
FR2875540A1 (fr) * 2004-09-20 2006-03-24 Mark Iv Systemes Moteurs Sa Module multifonctionnel, vehicule a moteur comportant un tel module et procede de fabrication d'un tel module
WO2007000541A2 (fr) * 2005-06-09 2007-01-04 Renault S.A.S Dispositif de chauffage additionnel d'un vehicule automobile
FR2894295A1 (fr) * 2005-12-01 2007-06-08 Mark Iv Systemes Moteurs Soc P Module multifonctionnel pour moteur a combustion interne

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104343582A (zh) * 2013-08-07 2015-02-11 大众汽车有限公司 用于发动机的功能模块
CN104343582B (zh) * 2013-08-07 2018-04-24 大众汽车有限公司 用于发动机的功能模块

Also Published As

Publication number Publication date
FR2920706B1 (fr) 2010-01-22
FR2920706A1 (fr) 2009-03-13
EP2037116B1 (de) 2012-02-15
EP2037116B8 (de) 2012-04-04

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