EP0354941B1 - Kolbenbrennkraftmaschine mit nassen zylinderbuchsen - Google Patents

Kolbenbrennkraftmaschine mit nassen zylinderbuchsen Download PDF

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Publication number
EP0354941B1
EP0354941B1 EP89901265A EP89901265A EP0354941B1 EP 0354941 B1 EP0354941 B1 EP 0354941B1 EP 89901265 A EP89901265 A EP 89901265A EP 89901265 A EP89901265 A EP 89901265A EP 0354941 B1 EP0354941 B1 EP 0354941B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
piston
combustion engine
cylinder liner
connecting rod
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
EP89901265A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0354941A1 (de
Inventor
Gerd-Michael Wolters
Otto Reifenscheid
Michael Groddeck
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.)
Rolls Royce Solutions GmbH
Original Assignee
MTU Friedrichshafen GmbH
MTU Motoren und Turbinen Union Friedrichshafen 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 MTU Friedrichshafen GmbH, MTU Motoren und Turbinen Union Friedrichshafen GmbH filed Critical MTU Friedrichshafen GmbH
Publication of EP0354941A1 publication Critical patent/EP0354941A1/de
Application granted granted Critical
Publication of EP0354941B1 publication Critical patent/EP0354941B1/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 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/10—Cylinders; Cylinder heads  having cooling means for liquid cooling
    • F02F1/16—Cylinder liners of wet type
    • 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0046—Shape of casings adapted to facilitate fitting or dismantling of engine parts

Definitions

  • the invention relates to a piston internal combustion engine with wet cylinder liners according to the preamble of claim 1.
  • the invention is intended to facilitate assembly and maintenance of a piston internal combustion engine, the cylinder liners of which are installed in the cylinder crankcase with a tight fit.
  • a generic piston internal combustion engine is known from EP 0 140 894 B1. Assembly and disassembly of a unit consisting of cylinder liner and piston-connecting rod assembly is carried out using a radially expandable tool inserted into the cylinder bore.
  • the axial force required to disassemble a cylinder liner during disassembly should be transferred to the cylinder liner by friction between the tool and the cylinder bore.
  • the radial force required for the frictional engagement is generated by expanding the tool.
  • the radial force causes the thin-walled cylinder liner to expand in the area of the tool. In this way, the cylinder liner is additionally clamped against the cylinder crankcase by the expanded tool.
  • the very large axial force required to disassemble a cylinder liner installed with a tight fit continues to grow in an undesirable manner and makes disassembly by means of the known arrangement impossible.
  • the piston-connecting rod assembly should be held in position by a partial vacuum between the tool and the piston in relation to the cylinder liner.
  • the tightness that can be achieved through the piston rings of the piston is insufficient to maintain a sufficient vacuum over the installation period. Relative movement between the cylinder liner and the piston-connecting rod assembly during assembly cannot be ruled out and can lead to undetected damage to engine parts, which would result in their premature failure.
  • the advantages achieved by the invention are, in particular, that a heavy-duty, mechanical connection between a mounting device and the cylinder liner can be produced, that deformation of the cylinder liner by using the mounting device is ruled out, that during disassembly there is no static load on engine parts in a unit and that there is a reliable, positionally stable connection between the mounting device and all parts of a unit during assembly or disassembly.
  • Each cylinder of a piston internal combustion engine is lined with a wet cylinder liner 11, the collar 12 of which is sunk in a cylindrical recess 13 of the cylinder crankcase 14.
  • a cylindrical, tight fit of the cylinder liner 11 in the cylinder crankcase 14 is ensured by cylindrical fits between the collar 12 and the recess 13 and between a shoulder 15 of the cylinder liner 11 and the cylinder crankcase 14.
  • a cooling water ring space 19 formed on the collar 12 of the cylinder liner 11 is sealed by a sealing ring 20 to the end of the recess 13 on the cylinder head side.
  • the external thread 21 has an outer diameter that is smaller than the outer diameter of the collar 12, as a result of which a flat surface 22 facing the cylinder head is formed.
  • a piston-connecting rod assembly consisting of piston 23 and connecting rod 24 is assigned to each cylinder of the piston internal combustion engine.
  • the crankshaft-side bearing eye 25 of the connecting rod 24 has a greater width than the inside diameter of the cylinder liner 11.
  • the otherwise customary assembly in which the connecting rod 24 with the crankshaft-side bearing eye 25 is pushed forward through the cylinder liner 11 already inserted into the cylinder crankcase 14, is not feasible in this case. Therefore, the piston-connecting rod assembly assigned to each cylinder can only be installed and removed as a unit together with the associated cylinder bushing 11.
  • Symmetrically arranged devices for attaching a load lifting means are formed on the piston 23, which may have a combustion chamber trough 29.
  • the devices can consist of at least two bead sections 30 projecting radially inwards on the edge of the combustion chamber trough 29 or one or two threaded blind holes 31 arranged axially in the piston head.
  • the mounting device consists of a bell-shaped plate 26, which is screwed onto the external thread 21 of the cylinder liner 11 and braced against the flat surface 22, and of a pair of grippers 27 or a pair of clamping screws 28, which are attached to the piston 23 of a lifting device interact.
  • the cylinder liner 11 and the piston-connecting rod assembly are firmly connected to one another connected.
  • spacers (not shown), which are supported against the cylinder bushing 11, are plugged onto the connecting rod 24.
  • the unit held together with the mounting device is inserted into the bore of the cylinder crankcase 14 until the fit is snapped on.
  • a press-in device which is connected to the mounting device and fastened to the cylinder crankcase 14, presses the unit in until the collar 12 abuts against the bottom of the recess 13.
  • the piston 23 can be inserted in the cylinder bushing 11 moved down and the connecting rod 24 are connected to the crankshaft.
  • a unit is disassembled essentially in the reverse order of the handles described above.
  • the cylinder liner 11 and the connecting rod assembly are then connected to the plate 26 after the connecting rod has been separated from the crankshaft.
  • the force for releasing the cylinder liner 11 from the cylinder crankcase 14 is generated by an extrusion device.
  • the squeezing device consists of a cross member 32 which is fastened to the cylinder crankcase 14 by means of screws 33 and a hydraulic cylinder 34 with pressure oil supply 37.
  • the hydraulic cylinder 34 is connected to the bell-shaped plate 26 by a pull rod 35.

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)
  • Pistons, Piston Rings, And Cylinders (AREA)
EP89901265A 1988-02-09 1989-01-17 Kolbenbrennkraftmaschine mit nassen zylinderbuchsen Expired - Lifetime EP0354941B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3803890A DE3803890C1 (de) 1988-02-09 1988-02-09 Kolbenbrennkraftmaschine mit nassen Zylinderbuchsen
DE3803890 1988-02-09

Publications (2)

Publication Number Publication Date
EP0354941A1 EP0354941A1 (de) 1990-02-21
EP0354941B1 true EP0354941B1 (de) 1991-04-10

Family

ID=6346971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89901265A Expired - Lifetime EP0354941B1 (de) 1988-02-09 1989-01-17 Kolbenbrennkraftmaschine mit nassen zylinderbuchsen

Country Status (9)

Country Link
US (1) US5056470A (ko)
EP (1) EP0354941B1 (ko)
JP (1) JPH076448B2 (ko)
KR (1) KR940000350B1 (ko)
CN (1) CN1012383B (ko)
DE (2) DE3803890C1 (ko)
ES (1) ES2012916A6 (ko)
RU (1) RU1769777C (ko)
WO (1) WO1989007710A1 (ko)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10151322B4 (de) * 2001-10-17 2005-12-08 Mtu Friedrichshafen Gmbh Vorrichtung zum Ausbau einer Zylinder-Kolben-Einheit
JPWO2003071116A1 (ja) * 2002-02-20 2005-06-16 ヤマハ発動機株式会社 エンジンの締結構造
DE102004024594B3 (de) * 2004-05-18 2006-01-12 Mtu Friedrichshafen Gmbh Vorrichtung zum Ausbau einer Zylinder-Kolben-Einheit
JP4367288B2 (ja) * 2004-08-17 2009-11-18 トヨタ自動車株式会社 エンジンのシリンダブロック
EP1803527B1 (de) * 2005-12-23 2018-09-12 GE Jenbacher GmbH & Co OG Verfahren zum gemeinsamen Ein- und/oder Ausbau eines Kolbens und einer Zylinderlaufbuchse
DE102007042156A1 (de) * 2007-09-05 2009-03-12 Man Diesel Se Verbindungsanordnung, insbesondere zum Verspannen eines Zylinderkopfes, mit einem Kurbelgehäuse einer Hubkolbenbrennkraftmaschine
CN102072044A (zh) * 2011-01-24 2011-05-25 新疆阳光动力能源科技有限公司 水冷装置及具有该水冷装置的外燃机
FR2972375B1 (fr) * 2011-03-11 2014-04-11 Renault Sa Procede d'usinage du passage de bielle dans un carter cylindre carter cylindre et moteur obtenus par le procede
CN103256137B (zh) * 2013-05-24 2016-04-20 江苏四达动力机械集团有限公司 湿式气缸套支撑机构
CN105171394B (zh) * 2015-10-27 2018-05-04 潍柴动力股份有限公司 发动机机体和曲柄连杆机构的装配、拆卸方法及装拆工装
CN110173366A (zh) * 2019-03-27 2019-08-27 潍柴动力股份有限公司 发动机、气缸套、缸盖及气缸套与缸盖的密封结构
CN113915022B (zh) * 2021-10-11 2023-03-21 湖南江滨机器（集团）有限责任公司 一种多支点活塞环限位装置及活塞

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5012044B1 (ko) * 1971-05-27 1975-05-08
JPS50696B1 (ko) * 1971-05-31 1975-01-10
US3786769A (en) * 1973-02-05 1974-01-22 Singer Co Pattern selection system
DE2403255A1 (de) * 1974-01-24 1975-08-07 Daimler Benz Ag Hubkolbenmaschine mit zylinderkopf mit einer gleichmaessig steifen zylinderkopfbodenplatte
JPS60501199A (ja) * 1983-05-02 1985-08-01 キヤタピラ−　トラクタ−　カンパニ− エンジンのシリンダライナ、ピストン、およびロッドのひとまとめにした取外し

Also Published As

Publication number Publication date
KR940000350B1 (ko) 1994-01-17
ES2012916A6 (es) 1990-04-16
JPH076448B2 (ja) 1995-01-30
DE3803890C1 (de) 1988-09-22
RU1769777C (ru) 1992-10-15
JPH02503105A (ja) 1990-09-27
DE58900082D1 (de) 1991-05-16
CN1035160A (zh) 1989-08-30
CN1012383B (zh) 1991-04-17
WO1989007710A1 (en) 1989-08-24
US5056470A (en) 1991-10-15
EP0354941A1 (de) 1990-02-21
KR900700747A (ko) 1990-08-16

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