EP1156198B1 - Kolbenkühlung für Brennkraftmaschinen - Google Patents

Kolbenkühlung für Brennkraftmaschinen Download PDF

Info

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
Application number
EP01106078A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1156198A3 (de
EP1156198A2 (de
Inventor
Heribert Dipl.-Ing. Möller
Josef Ing. Winter
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.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge AG
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 MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Publication of EP1156198A2 publication Critical patent/EP1156198A2/de
Publication of EP1156198A3 publication Critical patent/EP1156198A3/de
Application granted granted Critical
Publication of EP1156198B1 publication Critical patent/EP1156198B1/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
    • 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)
EP01106078A 2000-05-17 2001-03-13 Kolbenkühlung für Brennkraftmaschinen Expired - Lifetime EP1156198B1 (de)

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 (de) 2001-11-21
EP1156198A3 EP1156198A3 (de) 2003-02-19
EP1156198B1 true EP1156198B1 (de) 2006-06-28

Family

ID=7642407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01106078A Expired - Lifetime EP1156198B1 (de) 2000-05-17 2001-03-13 Kolbenkühlung für Brennkraftmaschinen

Country Status (5)

Country Link
US (1) US6532912B2 (enExample)
EP (1) EP1156198B1 (enExample)
JP (1) JP2002021558A (enExample)
AT (1) ATE331877T1 (enExample)
DE (2) DE10024207A1 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
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 (de) * 2005-01-03 2011-11-23 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Verbrennungsmotor mit einer Kolbenkühlvorrichtung
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
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
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 (6)

* Cited by examiner, † Cited by third party
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
JPS5290653U (enExample) * 1975-12-28 1977-07-06
JPS5884320U (ja) * 1981-12-02 1983-06-08 ダイハツ工業株式会社 内燃機関のピストン冷却用オイルジエツト圧入装置
JP2566838B2 (ja) * 1990-06-01 1996-12-25 株式会社クボタ 液冷多気筒エンジンのサイアミーズ形シリンダ冷却装置
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

Also Published As

Publication number Publication date
DE50110310D1 (de) 2006-08-10
US20010042526A1 (en) 2001-11-22
US6532912B2 (en) 2003-03-18
EP1156198A3 (de) 2003-02-19
ATE331877T1 (de) 2006-07-15
EP1156198A2 (de) 2001-11-21
DE10024207A1 (de) 2002-01-24
JP2002021558A (ja) 2002-01-23

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