EP4034758B1 - Moteur à combustion interne comprenant un refroidisseur d'huile intégré dans le bloc-cylindres, et commande d'eau de refroidissement - Google Patents

Moteur à combustion interne comprenant un refroidisseur d'huile intégré dans le bloc-cylindres, et commande d'eau de refroidissement Download PDF

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Publication number
EP4034758B1
EP4034758B1 EP20781433.6A EP20781433A EP4034758B1 EP 4034758 B1 EP4034758 B1 EP 4034758B1 EP 20781433 A EP20781433 A EP 20781433A EP 4034758 B1 EP4034758 B1 EP 4034758B1
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EP
European Patent Office
Prior art keywords
oil cooler
crankcase
combustion engine
internal combustion
oil
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.)
Active
Application number
EP20781433.6A
Other languages
German (de)
English (en)
Other versions
EP4034758A1 (fr
Inventor
Marco Sliwa
Johannes KLOSTERBERG
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.)
Deutz AG
Original Assignee
Deutz AG
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Filing date
Publication date
Application filed by Deutz AG filed Critical Deutz AG
Publication of EP4034758A1 publication Critical patent/EP4034758A1/fr
Application granted granted Critical
Publication of EP4034758B1 publication Critical patent/EP4034758B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0025—Oilsumps with heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
    • F01M2011/031—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means characterised by mounting means
    • F01M2011/033—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means characterised by mounting means comprising coolers or heat exchangers
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/04—Lubricant cooler

Definitions

  • a quantity of water is fed into an oil cooler line (not shown), which runs along the crankcase cooling chambers and feeds an oil cooler integrated into the internal combustion engine. From the oil cooler, the water is fed to the cooling water thermostat via the cylinder head cooling chamber.
  • the DE 43 22 030 A1 reveals an oil pan with cooling fins, which eliminates the need for a separate oil cooler.
  • EP 2 375 025 B1 It is known to arrange several heat exchangers downstream of the cylinder head.
  • the DE 44 00 952 C1 discloses an internal combustion engine with an integrated oil cooler, according to the above-mentioned part of claim 1.
  • the object of the present invention is to avoid the above-mentioned disadvantages and to create a flow-optimized oil cooler which ensures an effective supply of the oil cooler with oil and water or cooling medium with as few pipes as possible.
  • the Fig.1 The oil cooler shown is covered in a watertight manner by the oil cooler cover 2 due to the contour of the crankcase pocket 3 in the crankcase 1. The cooling water thus flows around the oil cooler 5.
  • the cooling water is passed through the oil cooler 5.
  • crankcase 1 is shown with crankcase pocket 3 for accommodating the oil cooler 5.
  • crankcase pocket 3 integrated into the crankcase 1, which is surrounded by a flange for sealingly accommodating the oil cooler cover 2, there are two cast ribs 7 as well as the oil inlet 8 and the oil outlet 9 on whose flanges the oil cooler 5 is arranged as well as the coolant inlet 10 and the coolant outlet 11, which are cast into the crankcase and open into the crankcase pocket 3.
  • the water circuit in the area of the oil cooler 5 is sealed by means of the oil cooler cover 2.
  • Fig. 3 shows the oil cooler cover 2 with two internal guide ribs 6, which are arranged spatially in the assembled state opposite the cast ribs 7, as is also shown in the section of the Fig.5 is revealed.
  • Fig.4 the oil cooler 5 with its cooler fins 4 and the screw plates for holding the oil cooler 5 on the oil inlet and outlet flanges 8 and 9 is made of Fig.2 shown.
  • Fig.5 shows the section CC from Fig.2 with the built-in oil cooler 5 on average.
  • Cooling water guide ribs 6 are attached to the oil cooler cover 2, and cast ribs 7 are inserted into the crankcase pocket 3, which are Fig.2 as well as in Fig.5
  • the cast ribs 7 in the crankcase 1 and the cooling water guide ribs 6 in the oil cooler cover 2 are brought up to the oil cooler 5, with the exception of a small gap, as shown in Fig.5
  • the cast ribs 7 are machined on the crankcase side. Due to the small rib width, only a small amount of material is removed and thus the machining time of the crankcase 1 is only slightly increased.
  • the cooling water guide ribs 6 on the oil cooler cover 2 do not necessarily have to be machined, since the tolerances in die casting are already sufficiently precise.
  • Fig.2 The oil cooler 5 is flowed through lengthwise and is located in a kind of crankcase pocket 3 directly in the crankcase 1 of the engine without its own housing, as is also the case in Fig.1 can be seen.
  • the longitudinal flow allows the entire amount of water from the engine to be made available to the oil cooler 5 due to the large flow cross-section.
  • the longitudinal flow through the oil cooler 5 means that enough energy is transferred from the oil to the water. Due to the way it works, this arrangement is ideal in terms of cooling effect and water-side pressure loss.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Claims (8)

  1. Moteur à combustion interne
    avec un carter (1) et une culasse, comprenant
    au moins un bloc-cylindre,
    une poche de carter (3) intégrée dans le carter (1) ;
    un refroidisseur d'huile (5) logé dans la poche de carter (3) et présentant un passage d'huile intégré,
    une surface de bride plane qui borde la poche de carter (3) pour recevoir de manière étanche un couvercle de refroidisseur d'huile (2),
    une arrivée d'huile (8) et une sortie d'huile (9) vers le refroidisseur d'huile (5), présentant respectivement des brides sur lesquelles le refroidisseur d'huile (5) est disposé, et
    une ligne de refroidissement interne comprenant une entrée de liquide de refroidissement (10) vers le refroidisseur d'huile (5) et une sortie de liquide de refroidissement (11) du refroidisseur d'huile (5), qui sont coulées dans le carter (1) et débouchent de manière ouverte dans la poche de carter (3),
    caractérisé en ce que le carter (1) comprend des nervures de coulée (7) et en ce que le couvercle du refroidisseur d'huile (2) comprend des nervures de guidage d'eau de refroidissement (6) disposées de telle sorte qu'un espace est formé entre celles-ci et le refroidisseur d'huile (5).
  2. Moteur à combustion interne selon la revendication 1,
    caractérisé en ce que la ligne de refroidissement présente des générateurs de turbulence.
  3. Moteur à combustion interne selon l'une ou plusieurs des revendications précédentes,
    caractérisé en ce que l'entrée de liquide de refroidissement (10) vers le refroidisseur d'huile (5) est réalisée de manière réglable.
  4. Moteur à combustion interne selon l'une ou plusieurs des revendications précédentes,
    caractérisé en ce que l'entrée d'huile vers le refroidisseur d'huile (5) est réalisée de manière réglable.
  5. Moteur à combustion interne selon l'une ou plusieurs des revendications précédentes,
    caractérisé en ce que la surface de bride plane est disposée essentiellement sur le côté longitudinal du carter (1) afin de recevoir un refroidisseur d'huile (5).
  6. Moteur à combustion interne selon l'une ou plusieurs des revendications précédentes,
    caractérisé en ce que des diaphragmes et/ou des dispositifs d'étranglement sont insérés entre le refroidisseur d'huile (5) et le carter (1).
  7. Moteur à combustion interne selon l'une ou plusieurs des revendications précédentes,
    caractérisé en ce que les diaphragmes et/ou les dispositifs d'étranglement insérés entre le refroidisseur d'huile (5) et le carter (1) sont réalisés en particulier par les nervures de guidage d'eau de refroidissement (6) dans le couvercle du refroidisseur d'huile (2) et par les nervures de coulée (7) dans le carter (1).
  8. Procédé de fonctionnement d'un moteur à combustion interne,
    caractérisé en ce qu'un moteur à combustion interne selon l'une ou plusieurs des revendications précédentes est utilisé.
EP20781433.6A 2019-09-23 2020-09-17 Moteur à combustion interne comprenant un refroidisseur d'huile intégré dans le bloc-cylindres, et commande d'eau de refroidissement Active EP4034758B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019006664.2A DE102019006664A1 (de) 2019-09-23 2019-09-23 Brennkraftmaschine mit im Zylinderkurbelgehäuse integriertem Ölkühler und einer Kühlwassersteuerung
PCT/EP2020/000158 WO2021058124A1 (fr) 2019-09-23 2020-09-17 Moteur à combustion interne comprenant un refroidisseur d'huile intégré dans le bloc-cylindres, et commande d'eau de refroidissement

Publications (2)

Publication Number Publication Date
EP4034758A1 EP4034758A1 (fr) 2022-08-03
EP4034758B1 true EP4034758B1 (fr) 2024-05-08

Family

ID=72670671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20781433.6A Active EP4034758B1 (fr) 2019-09-23 2020-09-17 Moteur à combustion interne comprenant un refroidisseur d'huile intégré dans le bloc-cylindres, et commande d'eau de refroidissement

Country Status (6)

Country Link
US (1) US11802497B2 (fr)
EP (1) EP4034758B1 (fr)
JP (1) JP7530541B2 (fr)
CN (1) CN114402126B (fr)
DE (1) DE102019006664A1 (fr)
WO (1) WO2021058124A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113503200B (zh) * 2021-07-22 2022-10-14 一汽解放汽车有限公司 汽车及其用于发动机的机油冷却滤清组件
CN114991939A (zh) * 2022-05-09 2022-09-02 摩丁普信热能技术（江苏）有限公司 一种散热性好的高强度机油冷却器

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2034203A1 (de) 1969-11-27 1971-06-03 ZKL Zavody na \ahva lozhiska a trak tory, N P , Brunn (Tschechoslowakei! Einrichtung zur Regelung der Oltempe ratur eines Verbrennungsmotors
FR2334820A1 (fr) * 1975-12-12 1977-07-08 Semt Systeme de refrigeration et/ou de graissage de soupapes
US4928651A (en) * 1989-06-26 1990-05-29 Tecumseh Products Company Integral engine block air cooled engine oil cooler
DE4313506A1 (de) 1993-04-24 1994-10-27 Knecht Filterwerke Gmbh Ölkühler in Scheibenbauweise
DE4322030A1 (de) 1993-07-02 1995-01-12 Porsche Ag Brennkraftmaschine mit zwei Zylinderreihen
DE4400952C1 (de) * 1994-01-14 1995-05-24 Daimler Benz Ag Gehäusedeckel für eine Brennkraftmaschine
CN2700573Y (zh) * 2004-02-24 2005-05-18 浙江银轮机械股份有限公司 无盖机油冷却器
JP4446836B2 (ja) * 2004-08-25 2010-04-07 本田技研工業株式会社 車両用内燃機関における補機配置構造
JP4405377B2 (ja) * 2004-12-22 2010-01-27 本田技研工業株式会社 Ｖ型エンジンのテンショナリフタ取付け構造
DE102005040635A1 (de) 2005-08-27 2007-03-01 Deutz Ag Wassergekühlte Brennkraftmaschine
KR100680337B1 (ko) 2005-11-24 2007-02-08 현대자동차주식회사 엔진용 수냉식 오일쿨러
DE112007000188A5 (de) * 2006-02-02 2009-01-15 Avl List Gmbh Kurbelgehäuseentlüftungssystem
JP2007278240A (ja) * 2006-04-11 2007-10-25 Honda Motor Co Ltd 内燃機関のクランクケース
JP2007315206A (ja) * 2006-05-23 2007-12-06 Honda Motor Co Ltd 内燃機関のブローバイガス還流装置
EP2180158A1 (fr) * 2008-10-22 2010-04-28 Perkins Engines Company Limited Agencement pour le contrôle d'un flux réfrigérant d'un moteur
DE102010010594B4 (de) 2010-03-08 2014-10-09 Audi Ag Kühlkreislauf für eine Brennkraftmaschine
JP5724299B2 (ja) 2010-11-01 2015-05-27 トヨタ自動車株式会社 シリンダブロックのオイルクーラ取付構造
US8844493B2 (en) * 2010-12-28 2014-09-30 Kawasaki Jukogyo Kabushiki Kaisha Lubricating oil feeding structure of engine
DE102014008361A1 (de) 2014-06-04 2015-12-17 Daimler Ag Kühlelement zum Kühlen eines Schmiermittels, insbesondere Schmieröl
US9822677B2 (en) * 2015-12-04 2017-11-21 Honda Motor Co., Ltd. Vehicle body
CN117514456A (zh) * 2016-04-08 2024-02-06 洋马动力科技有限公司 发动机装置
DE102016115526B4 (de) * 2016-08-22 2022-09-08 Volkswagen Aktiengesellschaft Zylinderkurbelgehäuse für eine Brennkraftmaschine mit Kunststoffgehäuse und Metall-Insert
JP6830429B2 (ja) 2017-12-15 2021-02-17 ヤンマーパワーテクノロジー株式会社 エンジン

Also Published As

Publication number Publication date
DE102019006664A1 (de) 2021-03-25
US11802497B2 (en) 2023-10-31
JP2022548485A (ja) 2022-11-21
WO2021058124A1 (fr) 2021-04-01
CN114402126B (zh) 2024-10-01
CN114402126A (zh) 2022-04-26
US20220290588A1 (en) 2022-09-15
EP4034758A1 (fr) 2022-08-03
JP7530541B2 (ja) 2024-08-08

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