EP3467287A1 - Zylinderlaufbuchsenanordnung für einen motor - Google Patents

Zylinderlaufbuchsenanordnung für einen motor Download PDF

Info

Publication number
EP3467287A1
EP3467287A1 EP18197805.7A EP18197805A EP3467287A1 EP 3467287 A1 EP3467287 A1 EP 3467287A1 EP 18197805 A EP18197805 A EP 18197805A EP 3467287 A1 EP3467287 A1 EP 3467287A1
Authority
EP
European Patent Office
Prior art keywords
engine
cylinder
cylinder liner
liners
mounting structure
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.)
Granted
Application number
EP18197805.7A
Other languages
English (en)
French (fr)
Other versions
EP3467287B1 (de
Inventor
Paul MLYNARCZYK
Volker Abraham
Sven AUGUSTINIACK
Jan GREBIEN
Sascha Burkhard
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
Caterpillar Motoren GmbH and Co KG
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 Caterpillar Motoren GmbH and Co KG filed Critical Caterpillar Motoren GmbH and Co KG
Publication of EP3467287A1 publication Critical patent/EP3467287A1/de
Application granted granted Critical
Publication of EP3467287B1 publication Critical patent/EP3467287B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02F1/102—Attachment of cylinders to crankcase
    • 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 
    • F02F1/004—Cylinder liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • 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
    • F02F7/0002—Cylinder arrangements
    • F02F7/0012—Crankcases of V-engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1832—Number of cylinders eight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/184—Number of cylinders ten
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1848—Number of cylinders twelve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1864—Number of cylinders sixteen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1868—Number of cylinders twenty

Definitions

  • the present disclosure relates to an engine, and more particularly to a cylinder liner assembly of the engine.
  • Engines such as multi-cylinder engines, are generally subjected to stresses during an operation of the engine. Such stresses may cause corrosion, and eventually, failure of engine components, such as an engine block, cylinder liners, cylinder liner support, and the like.
  • engine components such as an engine block, cylinder liners, cylinder liner support, and the like.
  • some engines include individual cylinder liner support that have ribs or web to interconnect adjacent cylinder liners. The ribs or webs are subjected to non-uniform stresses distribution (stiffness). This non-uniform stress distribution may cause corrosion of the cylinder liner support, which is not desirable.
  • U.S. Patent Number 2,817,327 describes an engine block construction utilizing wet cylinder liners, which simplifies the cylinder block casting.
  • the casting can be made merely in a box-like form so that when the liners with their top plate are in position, a coolant space is provided between the liners and the side and end walls of the block casting.
  • the construction requires a minimum of space between the respective cylinders since no part of the cylinder block is located between the liners.
  • the liner assembly comprising the plate and the liners is replaceable as a single unit and because of its rigidity the effect of the stresses resulting from securing the cylinder head to the block is minimized.
  • the construction also provides wide choice for the location of the studs for securing the head to the block and the plate provides a metal coolant seal.
  • a cylinder liner assembly for an engine.
  • the cylinder liner assembly includes a plurality of cylinder liners.
  • the cylinder liner assembly also includes a mounting structure attached to an engine block of the engine.
  • the mounting structure is adapted to couple the plurality of cylinder liners to the engine block. Further, the mounting structure defines at least one opening between at least two adjacent cylinder liners.
  • an engine block of an engine in another aspect of the present disclosure, includes a block defining a plurality of cylinders.
  • the engine block also includes a cylinder liner assembly for an engine.
  • the cylinder liner assembly includes a plurality of cylinder liners received within the plurality of cylinders.
  • the cylinder liner assembly also includes a mounting structure attached to the engine block of the engine.
  • the mounting structure is adapted to couple the plurality of cylinder liners to the engine block.
  • the mounting structure defines at least one opening between at least two adjacent cylinder liners.
  • an engine in yet another aspect of the present disclosure, includes a cylinder head.
  • the engine also includes an engine block.
  • the engine block includes a block defining a plurality of cylinders.
  • the engine block also includes a cylinder liner assembly disposed in the block.
  • the cylinder liner assembly includes a plurality of cylinder liners received within the plurality of cylinders.
  • the cylinder liner assembly also includes a mounting structure attached to the engine block of the engine.
  • the mounting structure is adapted to couple the plurality of cylinder liners to the engine block.
  • the mounting structure defines at least one opening between at least two adjacent cylinder liners.
  • FIG. 1 is a perspective view of an exemplary engine 100.
  • the engine 100 is embodied as an internal combustion engine, and more particularly a reciprocating piston engine. Further, the engine 100 may include any one of a spark ignition engine or a compression ignition engine, such as a diesel engine, a natural gas engine, a homogeneous charge compression ignition engine, a reactivity controlled compression ignition engine, or any other engine known in the art.
  • the engine 100 may be fueled by one or a combination of gasoline, diesel fuel, biodiesel, dimethyl ether, alcohol, natural gas, propane, or any other combustion fuel known in the art.
  • the concepts of the present disclosure may be suitably applicable to any type and configuration of the engine 100.
  • the engine 100 may be mounted on a machine (not shown).
  • the engine 100 and/or the machine may be used for applications including, but not limited to, power generation, transportation, construction, agriculture, forestry, aviation, marine, material handling, and waste management.
  • the engine 100 is exemplarily embodied in the form of a multi-cylinder engine.
  • the engine 100 includes an engine block 102.
  • the engine 100 also includes a cylinder head 104 mounted on the engine block 102.
  • the cylinder head 104 may house one or more components and/or systems (not shown) of the engine 100 such as a valve train, an intake manifold, an exhaust manifold, sensors, and so on.
  • the engine 100 may include various other components and/or systems (not shown) such as a crankcase, a fuel system, an air system, a cooling system, a turbocharger, an exhaust gas recirculation system, an exhaust gas aftertreatment system, and so on.
  • a number of cylinders 106 are disposed within the engine block 102.
  • the engine 100 further includes a piston (not shown) movably disposed within each of the cylinders 106.
  • Each of the pistons may be coupled to a crankshaft (not shown) of the engine 100. Energy generated from combustion of the fuel inside the cylinders 106 may be converted to rotational energy of the crankshaft by the pistons.
  • the cylinders 106 may be arranged in any configuration such as inline, radial, "V", and so on.
  • the engine 100 includes a first bank of cylinders 108 provided at a first side 109 of the engine 100. Further, the engine 100 includes a second bank of cylinders 110 provided at a second side 111 of the engine 100. As shown, the first and second bank of cylinders 108, 110 include the cylinders 106. The first bank of cylinders 108 includes six cylinders 106. Similarly, the second bank of cylinders 110 includes six cylinders 106.
  • the engine 100 may alternatively include 8 cylinders, 10 cylinders, 16 cylinders, or 20 cylinders, based on system requirements.
  • the engine block 102 includes a block 112.
  • the block 112 has a generally rectangular box shaped structure having side walls 114 and end walls 116.
  • the present disclosure will now be explained in relation to components provided at the first side 109 of the engine 100. However, it should be noted that the details provided below are equally applicable to components provided at the second side 111 of the engine 100.
  • a cylinder liner assembly 118 is disposed in the block 112.
  • the cylinder liner assembly 118 includes a number of cylinder liners 120 that are received within the engine block 102 and the cylinder head 104 (see FIG. 1 ) closes off an upper end 122 (shown in FIG. 3 ) of the cylinder liners 120.
  • the cylinder liners 120 define an inner wall of the cylinders 106. Further, the cylinder liners 120 extend along an axis X-X' (shown in FIG. 4 ). Further, a cylinder liner room 124 (shown in FIG. 4 ) is defined between the respective cylinder liners 120 and the engine block 102.
  • the cylinder liner assembly 118 is secured at a top portion of the engine block 102 by being clamped between the block 112 and the cylinder head 104.
  • the cylinder head 104 may be secured to the block 112 in the usual manner, that is, by the use of studs threaded into the block 112.
  • the cylinder liner assembly 118 also includes a mounting structure 126 attached to the engine block 102.
  • the mounting structure 126 is integrally formed with the engine block 102.
  • the mounting structure 126 couples the number of cylinder liners 120 to the engine block 102.
  • the cylinder liners 120 rest on the mounting structure 126 and are secured thereto.
  • the mounting structure 126 includes a first cylinder liner support plate 128.
  • the first cylinder liner support plate 128 defines a number of equally spaced apart first cylinder liner receiving openings 130, only one of which is shown in the accompanying figure.
  • the first cylinder liner support plate 128 extends along a length "L" (shown in FIG. 2 ) of the engine block 102.
  • a second cylinder liner support plate 132 defines a number of equally spaced apart second cylinder liner receiving openings 134.
  • the second cylinder liner support plate 132 extends along the length "L" of the engine block 102. It should be noted that the cylinder liners 120 are received within the respective first and second cylinder liner receiving openings 130, 134.
  • the mounting structure 126 includes a number of first cylinder liner radial guides 138 and a number of second cylinder liner radial guides 140.
  • the first cylinder liner radial guides 138 are defined in the first cylinder liner support plate 128.
  • the second cylinder liner radial guides 140 are defined in the second cylinder liner support plate 132.
  • the first and second cylinder liner radial guides 138, 140 support the cylinder liners 120 within the engine block 102.
  • the first and second cylinder liner radial guides 138, 140 are spaced apart from each other along the axis X-X' (see FIG. 4 ).
  • each cylinder liner 120 includes a flange portion 142.
  • the flange portion 142 includes a surface 144 that rests on the first cylinder liner support plate 128. Further, the flange portion 142 extends above the first cylinder liner support plate 128 along the axis X-X' defined by the cylinder liners 120, when the cylinder liner 120 is received within the engine block 102. It should be noted that the cylinder liners 120 at their upper and lower ends 122, 136 are rigidly secured to the first and second cylinder liner support plates 128, 132, respectively.
  • Any suitable means may be provided for securing the cylinder liner 120 to the first and second cylinder liner support plates 128, 132, respectively, such as threading or by welding, brazing, and/or soldering the cylinder liners 120 to the mounting structure 126.
  • the mounting structure 126 also defines an opening 146 (shown in FIG. 5 ) between two adjacent cylinder liners 120 (see FIGS. 2 to 4 ).
  • the opening 146 is a hollow space or an air duct that is defined between the two adjacent cylinder liners 120.
  • the mounting structure 126 defines a number of openings 146 that are defined between each of the adjacent cylinder liners 120. It should be noted that the number of openings 146 are equally spaced apart from each other along the length "L" of the engine block 102.
  • the number of openings 146 may vary based on the number of cylinder liners 120 associated with the engine 100.
  • the engine block 102 includes five openings 146 at the first side 109 and five openings (not shown) at the second side 111.
  • the openings 146 are provided based on the number of cylinders 106 associated with the engine 100, dimensions of the first and second cylinder liner support plate 128, 132, and dimensions of the cylinder liners 120, without limiting the scope of the present disclosure.
  • teachings of the present disclosure in not restricted to the engine 100 shown in FIG. 1 , and the teachings can be extended to different types of engines 100, without limiting the scope of the present disclosure.
  • the present disclosure relates to the cylinder liner assembly 118 having the mounting structure 126.
  • the mounting structure 126 couples the cylinder liners 120 to the engine block 102 and defines the one or more openings 146 between the adjacent cylinder liners 120 of the cylinder liner assembly 118.
  • the one or more openings 146 provide uniform stress distribution in the engine block 102, during an operation of the engine 100.
  • the openings 146 allow uniform stress distribution in the mounting structure 126, and more particularly, in the first cylinder liner support plate 128.
  • the uniform stress distribution in turn eliminates any damage of the first cylinder liner support plate 128.
  • the one or more openings 146 also optimize and improve pressure compensation in the engine block 102, during the operation of the engine 100. More particularly, the adjacent cylinder liners 120 are connected such that the gas pulsations within the cylinders 106 can be transferred to the first and second cylinder liner support plates 128, 132, safely. Further, the openings 146 eliminate oxidation of the cylinder liner room 124 by optimizing gas pulsations during the operation of the engine 100. The optimized gas pulsations in turn eliminate corrosion of the mounting structure 126 of the cylinder liner assembly 118 and also eliminate corrosion at an interface of the cylinder liners 120 and the engine block 102.

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  • 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)
EP18197805.7A 2017-10-06 2018-09-28 Zylinderlaufbuchsenanordnung für einen motor Active EP3467287B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1716367.6A GB2567208A (en) 2017-10-06 2017-10-06 Cylinder liner assembly for engine

Publications (2)

Publication Number Publication Date
EP3467287A1 true EP3467287A1 (de) 2019-04-10
EP3467287B1 EP3467287B1 (de) 2022-04-20

Family

ID=60326870

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18197805.7A Active EP3467287B1 (de) 2017-10-06 2018-09-28 Zylinderlaufbuchsenanordnung für einen motor

Country Status (2)

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EP (1) EP3467287B1 (de)
GB (1) GB2567208A (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2044852A (en) * 1979-03-21 1980-10-22 Cummins Engine Co Inc Engine cylinder block
JPS5888440A (ja) * 1981-11-19 1983-05-26 Toyota Motor Corp 板金部を持つ軽量シリンダ・ブロツク
DE19849912A1 (de) * 1998-10-29 2000-03-09 Daimler Chrysler Ag Flüssigkeitsgekühlte Brennkraftmaschine
EP1288477A2 (de) * 2001-08-31 2003-03-05 Honda Giken Kogyo Kabushiki Kaisha Zylinderblock einer Mehrzylinderbrennkraftmaschine
JP2008232079A (ja) * 2007-03-22 2008-10-02 Aichi Mach Ind Co Ltd 内燃機関のシリンダブロック及びその製造方法
WO2012137873A1 (ja) * 2011-04-07 2012-10-11 三菱重工業株式会社 シリンダジャケット
DE202016104878U1 (de) * 2015-06-19 2016-09-21 Neue Halberg-Guss Gmbh Verbund, Kurbelgehäuse und Hubkolben-Verbrennungskraftmaschine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB419056A (en) * 1933-08-15 1934-11-06 Joseph Lambert Jameson Improvements in or relating to the cylinders of two stroke internal combustion engines
US2817327A (en) * 1955-07-07 1957-12-24 Perfect Circle Corp Engine block construction
NL277009A (de) * 1961-04-11
GB2140502B (en) * 1983-05-25 1987-03-18 Atomic Energy Authority Uk An engine including fibre reinforced plastics
JPS6094230A (ja) * 1983-10-31 1985-05-27 Toyota Motor Corp シリンダブロツクの製造方法
JP2005155600A (ja) * 2003-10-31 2005-06-16 Toyota Motor Corp 水冷式エンジン及びそのシリンダブロック
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2044852A (en) * 1979-03-21 1980-10-22 Cummins Engine Co Inc Engine cylinder block
JPS5888440A (ja) * 1981-11-19 1983-05-26 Toyota Motor Corp 板金部を持つ軽量シリンダ・ブロツク
DE19849912A1 (de) * 1998-10-29 2000-03-09 Daimler Chrysler Ag Flüssigkeitsgekühlte Brennkraftmaschine
EP1288477A2 (de) * 2001-08-31 2003-03-05 Honda Giken Kogyo Kabushiki Kaisha Zylinderblock einer Mehrzylinderbrennkraftmaschine
JP2008232079A (ja) * 2007-03-22 2008-10-02 Aichi Mach Ind Co Ltd 内燃機関のシリンダブロック及びその製造方法
WO2012137873A1 (ja) * 2011-04-07 2012-10-11 三菱重工業株式会社 シリンダジャケット
DE202016104878U1 (de) * 2015-06-19 2016-09-21 Neue Halberg-Guss Gmbh Verbund, Kurbelgehäuse und Hubkolben-Verbrennungskraftmaschine

Also Published As

Publication number Publication date
EP3467287B1 (de) 2022-04-20
GB2567208A (en) 2019-04-10
GB201716367D0 (en) 2017-11-22

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