EP1156198B1 - Refroidissement de piston pour un moteur de combustion interne - Google Patents
Refroidissement de piston pour un moteur de combustion interne Download PDFInfo
- Publication number
- EP1156198B1 EP1156198B1 EP01106078A EP01106078A EP1156198B1 EP 1156198 B1 EP1156198 B1 EP 1156198B1 EP 01106078 A EP01106078 A EP 01106078A EP 01106078 A EP01106078 A EP 01106078A EP 1156198 B1 EP1156198 B1 EP 1156198B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- spray nozzles
- bore
- spray
- cylinder
- 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
- 238000001816 cooling Methods 0.000 title claims description 11
- 238000002485 combustion reaction Methods 0.000 title claims description 5
- 239000007921 spray Substances 0.000 claims description 39
- 238000009434 installation Methods 0.000 claims description 7
- 238000005461 lubrication Methods 0.000 claims description 5
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims 5
- 239000003921 oil Substances 0.000 description 14
- 238000003754 machining Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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
- F01P3/00—Liquid cooling
- F01P3/06—Arrangements for cooling pistons
- F01P3/08—Cooling of piston exterior only, e.g. by jets
Definitions
- the invention relates to a piston cooling for internal combustion engines.
- a spray nozzle made of a bent tube is positioned by means of a bracket and a screw on the inside of a crankcase so that a certain area of the piston crown is molded.
- the invention has for its object to make the production and assembly of the spray nozzles rational.
- the turned part can be produced fully automatically by machining cost-effectively and in consistent quality.
- Figure 1 shows in cross section a crankcase 1 with oil supply holes 2a, 2b which are integrated in a pressure circulation lubrication and which penetrate the crankcase 1 in the longitudinal direction.
- About holes 3a, 3b is the crankshaft bearings Lubricating oil supplied.
- the lubricating oil is also used for piston cooling.
- the piston cooling takes place in a known manner by spray nozzles 4 which are arranged in L Lucassbohrept5 the bulkheads 6, which are located between the crank chambers.
- the supply of the oil to the spray nozzle 4 takes place from the oil supply bore 2b via the bore 3a for the bearing lubrication and a bore 7.
- the holes 3a and 7 are interconnected by a recess 8.
- the spray nozzle 4 generates an oil jet 9 which is directed against an underside of a piston crown.
- a spray nozzle 4 is shown in detail in FIG.
- the spray nozzle 4 is made as a turned part.
- the spray nozzle 4 has a central blind bore 10, which is closed by a plug 11.
- the supply of cooling oil via a central oil supply hole 12. This is after installation in the longitudinal bore 5 in coincidence with the bore 7 in the bulkhead 6. (Fig. 1)
- the cooling oil is sprayed by means of the injection holes 13a, 13b.
- the advantage of the spray nozzles 4 according to the invention is to be seen in the fact that they can be produced solely by machining, ie by means of automatic lathes. In the manufacture of mass-produced vehicles, which undoubtedly represent vehicle engines, the cost issue is crucial.
- FIG. 3 shows a view of the crankcase 1 from the oil pan side.
- Each of the bulkheads 6 has a longitudinal bore 5. These longitudinal bores 5 penetrate the bulkhead walls 6 coaxially and run parallel to the center line of a crankshaft.
- the spray nozzles 4 are installed oriented so that the ejected from the spray holes 13a, 13b oil jets 9 (Fig. 1) meet the intended target.
- the tool consists essentially of a hydraulic piston-cylinder unit (KZE) 14.
- the cylinder 15 is rigidly connected to a positioning arm 16 - for example a robot - connected.
- two axially freely movable piston 17 a, 17 b are arranged in the cylinder 15 .
- the piston 17a has an end piece 18 which engages over the spray nozzle 4a already installed in a bulkhead wall 6a in order to support itself.
- a pressure can build up in the cylinder 15 which moves the second piston 17b, which presses the spray nozzle 4b into the bore of the second bulkhead 6b, so that it is reliably protected against displacement and rotation.
- Due to the freely movable piston 17a, 17b in the cylinder 15, the positioning arm 16 can be held torque-free despite the very high forces for pressing in the spray nozzles 4a, 4b.
- the installation can thus be fully automatic by means of robots.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Claims (3)
- Refroidissement de piston pour moteurs à combustion interne dans lequel des buses sortant d'un alésage lubrifiant intégré dans un graissage par circulation forcée dans le carter sont orientées contre la face inférieure du piston à partir du carter,- chacune des buses (4) étant formée en tant qu'élément rotatif compact,- les buses (4) étant insérées à l'aide d'un outil et orientées dans des alésages longitudinaux (5) des parois de cloison (6),- les alésages longitudinaux (5) traversant coaxialement les parois de cloison (6) entre les espaces de cylindre et parallèlement au vilebrequin,- chacune des buses (4) étant raccordée au graissage par circulation forcée par un alésage (7) dans la paroi de cloison (6),- la buse (4) étant conçue en tant qu'élément rotatif complètement cylindrique avec un alésage borgne central (10) dont l'extrémité libre est fermée par un bouchon (11),- la buse (4) présentant au moins deux trous d'injection (13a, 13b) symétriques au centre, et- un alésage d'amenée d'huile (12) central affleurant la paroi de cloison (6) lors du montage avec l'alésage (7).
- Refroidissement de piston selon la revendication 1
caractérisé en ce que
les buses (4) sont fixées par ajustage serré dans les alésages longitudinaux (5). - Utilisation d'un outil lors de la fabrication du refroidissement de piston selon la revendication 1, selon laquelle- l'outil pour le montage des buses (4) est conçu sous forme de vérin hydraulique (14),- le cylindre (15) du vérin (14) est relié de manière rigide à un bras de positionnement (16),- des pistons (17a, 17b) sont mobiles axialement dans le cylindre (15) vers les deux côtés,- l'un des pistons (17b) loge la buse (4b) pour le montage,- l'autre piston (17a) est formé de manière à loger une buse (4a) déjà montée et s'appuyant contre la paroi de cloison (6), et- le cylindre (15) est chargé par pression hydraulique après avoir positionné correctement le vérin (14).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10024207A DE10024207A1 (de) | 2000-05-17 | 2000-05-17 | Kolbenkühlung für Brennkraftmaschinen |
DE10024207 | 2000-05-17 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1156198A2 EP1156198A2 (fr) | 2001-11-21 |
EP1156198A3 EP1156198A3 (fr) | 2003-02-19 |
EP1156198B1 true EP1156198B1 (fr) | 2006-06-28 |
Family
ID=7642407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01106078A Expired - Lifetime EP1156198B1 (fr) | 2000-05-17 | 2001-03-13 | Refroidissement de piston pour un moteur de combustion interne |
Country Status (5)
Country | Link |
---|---|
US (1) | US6532912B2 (fr) |
EP (1) | EP1156198B1 (fr) |
JP (1) | JP2002021558A (fr) |
AT (1) | ATE331877T1 (fr) |
DE (2) | DE10024207A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10214830A1 (de) * | 2002-04-04 | 2004-01-08 | Mahle Gmbh | Öleinlass für einen mit Kühlkanal versehenen Kolben eines Verbrennungsmotors |
US7063049B2 (en) * | 2004-03-03 | 2006-06-20 | Deere & Company | Directed spray jet and installation tool |
DE102004055381B3 (de) | 2004-11-17 | 2006-04-06 | Groz-Beckert Kg | Schafstab für Webschäfte |
EP1676989B1 (fr) * | 2005-01-03 | 2011-11-23 | Ford Global Technologies, LLC, A subsidary of Ford Motor Company | Moteur à combustion interne avec un dispositif de refroidissement de piston |
JP4640826B2 (ja) * | 2006-02-28 | 2011-03-02 | 本田技研工業株式会社 | 内燃機関のピストン冷却装置 |
JP4636506B2 (ja) * | 2006-02-28 | 2011-02-23 | 本田技研工業株式会社 | 車両用発電機の冷却構造 |
AT514804B1 (de) * | 2013-12-10 | 2015-04-15 | Steyr Motors Gmbh | Verbrennungskraftmaschine mit Ölkanälen |
CN109630253B (zh) * | 2018-12-13 | 2020-06-02 | 潍柴动力股份有限公司 | 一种发动机油路结构及发动机 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1475181A (en) * | 1974-02-06 | 1977-06-01 | Perkins Engines Ltd | Reciprocating engine having piston oil cooling |
DE9313885U1 (de) * | 1992-09-17 | 1993-11-04 | DEUTZ AG, 51063 Köln | Brennkraftmaschine mit Kolbenkühlung |
US5881684A (en) * | 1997-07-21 | 1999-03-16 | Bontaz Centre, Societe Anonyme | Interference fit cooling spray nozzle |
-
2000
- 2000-05-17 DE DE10024207A patent/DE10024207A1/de not_active Withdrawn
-
2001
- 2001-03-13 EP EP01106078A patent/EP1156198B1/fr not_active Expired - Lifetime
- 2001-03-13 DE DE50110310T patent/DE50110310D1/de not_active Expired - Fee Related
- 2001-03-13 AT AT01106078T patent/ATE331877T1/de not_active IP Right Cessation
- 2001-05-17 JP JP2001147600A patent/JP2002021558A/ja not_active Ceased
- 2001-05-17 US US09/861,162 patent/US6532912B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1156198A2 (fr) | 2001-11-21 |
DE10024207A1 (de) | 2002-01-24 |
JP2002021558A (ja) | 2002-01-23 |
US6532912B2 (en) | 2003-03-18 |
EP1156198A3 (fr) | 2003-02-19 |
DE50110310D1 (de) | 2006-08-10 |
US20010042526A1 (en) | 2001-11-22 |
ATE331877T1 (de) | 2006-07-15 |
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