EP0381842B1 - Mehrzylindrige Brennkraftmaschine mit Einzelzylinderköpfen - Google Patents

Mehrzylindrige Brennkraftmaschine mit Einzelzylinderköpfen Download PDF

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Publication number
EP0381842B1
EP0381842B1 EP89123178A EP89123178A EP0381842B1 EP 0381842 B1 EP0381842 B1 EP 0381842B1 EP 89123178 A EP89123178 A EP 89123178A EP 89123178 A EP89123178 A EP 89123178A EP 0381842 B1 EP0381842 B1 EP 0381842B1
Authority
EP
European Patent Office
Prior art keywords
wedge element
combustion engine
internal combustion
engine according
elastic
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
EP89123178A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0381842A1 (de
Inventor
Siegfried Dipl.-Ing. Glaeske
Reinhard Dipl.-Ing. Häfner
Hans Dipl.-Ing. Heinsohn
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.)
Caterpillar Motoren GmbH and Co KG
Original Assignee
Krupp Mak Maschinenbau GmbH
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 Krupp Mak Maschinenbau GmbH filed Critical Krupp Mak Maschinenbau GmbH
Publication of EP0381842A1 publication Critical patent/EP0381842A1/de
Application granted granted Critical
Publication of EP0381842B1 publication Critical patent/EP0381842B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/26—Cylinder heads having cooling means
    • F02F1/36—Cylinder heads having cooling means for liquid cooling
    • F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream 
    • 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

Definitions

  • the invention relates to a multi-cylinder internal combustion engine with single cylinder heads according to the preamble of claim 1.
  • Sliding pipe connections are known, in particular for the forwarding of cooling water to be discharged or of charge air to be introduced.
  • DE-OS 1576 725 are single cylinder heads for an internal combustion engine from which cooling water passes into the cylinder heads, the cylinder heads being connected to one another by internal cooling water lines for forwarding the cooling water. These are formed by sleeves, which each connect adjacent cooling chambers in the cylinder heads for the flow of cooling water.
  • the object of the invention is to make the line connections between the cylinder heads and the connections of supply and discharge lines simple and inexpensive to assemble for single cylinder heads of an internal combustion engine, these lines being designed for the media for nozzle cooling, rocker arm lubrication and for the nozzle leak oil.
  • This object is achieved by the characterizing features of claim 1. Further advantageous features include the subclaims.
  • the main advantages achieved with the invention are that a large part of the supply and discharge lines are connected without screw connections and pipes and that the cylinder heads themselves take over the function of the lines, so that they are saved on the engine.
  • the lines are provided in the cylinder heads through drilled channels for the media for nozzle cooling, rocker arm lubrication and for the nozzle leak oil.
  • the outlet openings of the bores from adjacent cylinder heads are connected to one another by an easily insertable wedge element that has a corresponding through bore. This element is designed in such a way that it has an elastic and deformation-elastic effect and thus absorbs a relative movement between adjacent cylinder heads without sealing problems being able to occur.
  • the wedge elements are also held on the cylinder heads by means of a tensioning device in such a way that they are fastened in an elastically pressed manner relative to them, and that elasticities are also provided for each sealing surface of a medium. Furthermore, there can be free openings between the connected outlet openings.
  • At least one wedge element 7 is arranged between oblique contact surfaces 8, 9 of these cylinder heads 5, 6.
  • This is provided with through bores 10 which lie one above the other and whose openings 11 are aligned with outlet openings 12 of the corresponding inner bores 1, 2, 3 and 4.
  • the holes 1 to 4 are shown with a course in the cylinder head 5 and 6, which is to serve as an example and only partially illustrates the possibilities.
  • the wedge element 7 has opposite, obliquely running sealing surfaces 13, 14, which is carried out with the corresponding obliquely running contact surfaces 8, 9 of the cylinder heads 5, 6 via a clamping device 15 16 17 18.
  • the 2 comprises an elastic bracket 21 with a centrally arranged pressure pin 22, which is surrounded by an elastic sleeve 23. This is supported with one end 24 in the base of the wedge element 7 and with its other end 25 on the collar 22a of the pressure pin 22 or on the bracket 21.
  • the bracket 21 is fastened either to a cylinder head 5 or 6 via a fastening screw 26 or to both cylinder heads 5 and 6 via two fastening screws 26 and 26a.
  • the elastic sleeve 23 can move freely in all directions with the pressure pin 22.
  • the pressure pin 22 is preferably arranged with its engagement surface on the wedge element 7 so that the engagement point is lower than the outlet openings 12 of the bores 1 to 4.
  • FIG. 4 shows another embodiment of a tensioning device with a spring 30, which is designed as a plate spring and is arranged between the screw head 28 and the fastening screw 29 and the wedge element 7.
  • the fastening screw 29 is held on the wedge element 7 via a cross pin 31, which is shown in more detail in FIG. 4.
  • the tensioning device exerts an elastic pre-tension on the wedge element 7 in order to achieve a tightly elastic and deformation-elastic connection between the cylinder heads and the wedge element.
  • the wedge element 7 has different sealing elements to achieve elastic tightness between the contact surfaces 8, 9 on the cylinder heads 5, 6.
  • an elastic seal 32 is provided on the surfaces 13 and 14 of the wedge element 7, which rests on it.
  • This elastic layer 32 can e.g. can be attached by notching 33 to the surfaces 13, 14 by notching, as shown in FIG. 7.
  • the notched nails 33 are arranged in the closing cylinder heads 5 and 6 in corresponding insertion openings 34. Between the different sealing units, gaps 35 can be arranged in a straight line or around the various bores.
  • the wedge element 7 has elastic sleeves 36 inserted into the through hole 10. This is arranged at right angles to the inclined surfaces 13, 14 and protrudes beyond them and forms an elastic sealing surface which faces the contact surface 8, 9 on the cylinder heads 5 and 6.
  • Stops 37 which are wear-resistant, can be arranged on the sealing surfaces 13, 14 of the wedge element 7 Have surface and limit the spring travel of the sleeve 36.
  • the through bore 10 of the wedge element 7 is provided with an inserted elastic tube 38, which projects beyond the wedge element 7 and has elastic contact surfaces 39 arranged parallel to the inclined surfaces 13, 14 of the element 7.
  • stops 37 can be provided between the through bores 10.
  • the elastic connecting tube 38 is e.g. executed square. However, it can also have a different geometric cross-sectional shape, but should have a shape that is secure against rotation.
  • the wedge element 7 consists of a one-piece elastic part with an integrally formed neck 40, which comprises end flanges 41 with end faces 40a, which is connected to the actual base body of the wedge element 7 via an elastic neck part 42 with a reduced diameter.
  • the wedge element 7 comprises an elastic sleeve 44 which is pressed in coaxially to the bore 10.
  • This sleeve has a flange 45 and 46 at the end, which receive a compression spring 47 between them, which holds the flanges 45 and 46 on the one hand into the wedge element 7 and on the other hand the contact surfaces 8, 9 of the cylinder heads 5, 6 presses.
  • Stops 37 can also be provided in this embodiment, as in 5, 8 and 10, which is not shown in detail.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP89123178A 1989-02-07 1989-12-14 Mehrzylindrige Brennkraftmaschine mit Einzelzylinderköpfen Expired - Lifetime EP0381842B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3903574A DE3903574A1 (de) 1989-02-07 1989-02-07 Mehrzylindrige brennkraftmaschine mit einzelzylinderkoepfen
DE3903574 1989-02-07

Publications (2)

Publication Number Publication Date
EP0381842A1 EP0381842A1 (de) 1990-08-16
EP0381842B1 true EP0381842B1 (de) 1993-01-20

Family

ID=6373563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123178A Expired - Lifetime EP0381842B1 (de) 1989-02-07 1989-12-14 Mehrzylindrige Brennkraftmaschine mit Einzelzylinderköpfen

Country Status (3)

Country Link
EP (1) EP0381842B1 (fi)
DE (2) DE3903574A1 (fi)
FI (1) FI896058A0 (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102439058B1 (ko) * 2017-12-14 2022-08-31 바르실라 핀랜드 오이 피스톤 엔진용 유체 분배 엘리먼트 및 그러한 유체 분배 엘리먼트를 구비한 피스톤 엔진

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735697A (en) * 1956-02-21 Sealed reducer joint between pipes
FR1306389A (fr) * 1961-11-16 1962-10-13 Accouplement détachable
US3618811A (en) * 1969-09-15 1971-11-09 Harsco Corp Releasable fluid seal or test plug for conduits
DE3228140A1 (de) * 1982-07-28 1984-02-09 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Leitungs- und leitungsverbindungssystem fuer die druckmittelversorgung von maschinen

Also Published As

Publication number Publication date
DE58903358D1 (de) 1993-03-04
EP0381842A1 (de) 1990-08-16
DE3903574A1 (de) 1990-08-09
FI896058A0 (fi) 1989-12-18

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