EP3467287A1 - Cylinder liner assembly for engine - Google Patents
Cylinder liner assembly for engine Download PDFInfo
- 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
Links
- 238000009826 distribution Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 3
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000003225 biodiesel Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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)
Abstract
Description
- 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. For example, 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. Thus, 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. - In one aspect of the present disclosure, a cylinder liner assembly for an engine is provided. 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.
- In another aspect of the present disclosure, an engine block of an engine is provided. The engine block 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.
- In yet another aspect of the present disclosure, an engine is provided. The engine 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.
- Other features and aspects of this disclosure will be apparent from the following description and the accompanying drawings.
-
-
FIG. 1 is a perspective view of an exemplary engine; -
FIG. 2 is a perspective view of an engine block of the engine ofFIG. 1 , according to one embodiment of the present disclosure; -
FIG. 3 is a cut-away view of the engine block shown inFIG. 2 ; -
FIG. 4 is a cut-away view of the engine block shown inFIG. 2 ; and -
FIG. 5 is a perspective view of the engine block showing openings in a mounting structure of a cylinder liner assembly. - Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or the like parts. Also, corresponding or similar reference numbers will be used throughout the drawings to refer to the same or corresponding parts.
-
FIG. 1 is a perspective view of anexemplary engine 100. Theengine 100 is embodied as an internal combustion engine, and more particularly a reciprocating piston engine. Further, theengine 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. Theengine 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. - It should be recognized that the concepts of the present disclosure may be suitably applicable to any type and configuration of the
engine 100. In one embodiment, theengine 100 may be mounted on a machine (not shown). Theengine 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. Moreover, as shown in the embodiment ofFIG. 1 , theengine 100 is exemplarily embodied in the form of a multi-cylinder engine. - The
engine 100 includes anengine block 102. Theengine 100 also includes acylinder head 104 mounted on theengine block 102. Thecylinder head 104 may house one or more components and/or systems (not shown) of theengine 100 such as a valve train, an intake manifold, an exhaust manifold, sensors, and so on. Additionally, theengine 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. - Referring to
FIG. 2 , a number ofcylinders 106 are disposed within theengine block 102. Theengine 100 further includes a piston (not shown) movably disposed within each of thecylinders 106. Each of the pistons may be coupled to a crankshaft (not shown) of theengine 100. Energy generated from combustion of the fuel inside thecylinders 106 may be converted to rotational energy of the crankshaft by the pistons. - Further, the
cylinders 106 may be arranged in any configuration such as inline, radial, "V", and so on. Theengine 100 includes a first bank ofcylinders 108 provided at afirst side 109 of theengine 100. Further, theengine 100 includes a second bank ofcylinders 110 provided at asecond side 111 of theengine 100. As shown, the first and second bank ofcylinders cylinders 106. The first bank ofcylinders 108 includes sixcylinders 106. Similarly, the second bank ofcylinders 110 includes sixcylinders 106. Theengine 100 may alternatively include 8 cylinders, 10 cylinders, 16 cylinders, or 20 cylinders, based on system requirements. - Further, the
engine block 102 includes ablock 112. Theblock 112 has a generally rectangular box shaped structure havingside walls 114 and endwalls 116. For explanatory purposes, the present disclosure will now be explained in relation to components provided at thefirst side 109 of theengine 100. However, it should be noted that the details provided below are equally applicable to components provided at thesecond side 111 of theengine 100. - As shown in the accompanying figure, a
cylinder liner assembly 118 is disposed in theblock 112. Thecylinder liner assembly 118 includes a number ofcylinder liners 120 that are received within theengine block 102 and the cylinder head 104 (seeFIG. 1 ) closes off an upper end 122 (shown inFIG. 3 ) of thecylinder liners 120. Thecylinder liners 120 define an inner wall of thecylinders 106. Further, thecylinder liners 120 extend along an axis X-X' (shown inFIG. 4 ). Further, a cylinder liner room 124 (shown inFIG. 4 ) is defined between therespective cylinder liners 120 and theengine block 102. - The
cylinder liner assembly 118 is secured at a top portion of theengine block 102 by being clamped between theblock 112 and thecylinder head 104. Thecylinder head 104 may be secured to theblock 112 in the usual manner, that is, by the use of studs threaded into theblock 112. Thecylinder liner assembly 118 also includes a mountingstructure 126 attached to theengine block 102. The mountingstructure 126 is integrally formed with theengine block 102. The mountingstructure 126 couples the number ofcylinder liners 120 to theengine block 102. Thecylinder liners 120 rest on the mountingstructure 126 and are secured thereto. - As shown in
FIG. 3 , the mountingstructure 126 includes a first cylinderliner support plate 128. The first cylinderliner support plate 128 defines a number of equally spaced apart first cylinderliner receiving openings 130, only one of which is shown in the accompanying figure. The first cylinderliner support plate 128 extends along a length "L" (shown inFIG. 2 ) of theengine block 102. Further, a second cylinderliner support plate 132 defines a number of equally spaced apart second cylinderliner receiving openings 134. The second cylinderliner support plate 132 extends along the length "L" of theengine block 102. It should be noted that thecylinder liners 120 are received within the respective first and second cylinderliner receiving openings - 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 cylinderliner support plate 128. Further, the second cylinder liner radial guides 140 are defined in the second cylinderliner support plate 132. The first and second cylinder liner radial guides 138, 140 support thecylinder liners 120 within theengine block 102. Also, the first and second cylinder liner radial guides 138, 140 are spaced apart from each other along the axis X-X' (seeFIG. 4 ). - Referring now specifically to
FIG. 4 , eachcylinder liner 120 includes aflange portion 142. Theflange portion 142 includes asurface 144 that rests on the first cylinderliner support plate 128. Further, theflange portion 142 extends above the first cylinderliner support plate 128 along the axis X-X' defined by thecylinder liners 120, when thecylinder liner 120 is received within theengine block 102. It should be noted that thecylinder liners 120 at their upper and lower ends 122, 136 are rigidly secured to the first and second cylinderliner support plates cylinder liner 120 to the first and second cylinderliner support plates cylinder liners 120 to the mountingstructure 126. - As shown in
FIGS. 3 ,4 , and5 , the mountingstructure 126 also defines an opening 146 (shown inFIG. 5 ) between two adjacent cylinder liners 120 (seeFIGS. 2 to 4 ). Theopening 146 is a hollow space or an air duct that is defined between the twoadjacent cylinder liners 120. In the illustrated embodiment, the mountingstructure 126 defines a number ofopenings 146 that are defined between each of theadjacent cylinder liners 120. It should be noted that the number ofopenings 146 are equally spaced apart from each other along the length "L" of theengine block 102. - Further, the number of
openings 146 may vary based on the number ofcylinder liners 120 associated with theengine 100. In the illustrated embodiment, theengine block 102 includes fiveopenings 146 at thefirst side 109 and five openings (not shown) at thesecond side 111. In one example, theopenings 146 are provided based on the number ofcylinders 106 associated with theengine 100, dimensions of the first and second cylinderliner support plate cylinder liners 120, without limiting the scope of the present disclosure. - It should be noted that teachings of the present disclosure in not restricted to the
engine 100 shown inFIG. 1 , and the teachings can be extended to different types ofengines 100, without limiting the scope of the present disclosure. - The present disclosure relates to the
cylinder liner assembly 118 having the mountingstructure 126. The mountingstructure 126 couples thecylinder liners 120 to theengine block 102 and defines the one ormore openings 146 between theadjacent cylinder liners 120 of thecylinder liner assembly 118. The one ormore openings 146 provide uniform stress distribution in theengine block 102, during an operation of theengine 100. For example, theopenings 146 allow uniform stress distribution in the mountingstructure 126, and more particularly, in the first cylinderliner support plate 128. The uniform stress distribution in turn eliminates any damage of the first cylinderliner support plate 128. - Further, the one or
more openings 146 also optimize and improve pressure compensation in theengine block 102, during the operation of theengine 100. More particularly, theadjacent cylinder liners 120 are connected such that the gas pulsations within thecylinders 106 can be transferred to the first and second cylinderliner support plates openings 146 eliminate oxidation of thecylinder liner room 124 by optimizing gas pulsations during the operation of theengine 100. The optimized gas pulsations in turn eliminate corrosion of the mountingstructure 126 of thecylinder liner assembly 118 and also eliminate corrosion at an interface of thecylinder liners 120 and theengine block 102. - While aspects of the present disclosure have been particularly shown and described with reference to the embodiments above, it will be understood by those skilled in the art that various additional embodiments may be contemplated by the modification of the disclosed machines, systems and methods without departing from the spirit and scope of what is disclosed. Such embodiments should be understood to fall within the scope of the present disclosure as determined based upon the claims and any equivalents thereof.
Claims (7)
- A cylinder liner assembly (118) for an engine (100), the cylinder liner assembly (118) comprising:a plurality of cylinder liners (120); anda mounting structure (126) attached to an engine block (102) of the engine (100), the mounting structure (126) being adapted to couple the plurality of cylinder liners (120) to the engine block (102),wherein the mounting structure (126) defines at least one opening (146) between at least two adjacent cylinder liners (120).
- The cylinder liner assembly (118) of claim 1, wherein the mounting structure (126) includes a first cylinder liner support plate (128), the first cylinder liner support plate (128) being adapted to support an upper end (122) of the plurality of cylinder liners (120).
- The cylinder liner assembly (118) of claim 2, wherein the mounting structure (126) includes a second cylinder liner support plate (132), the second cylinder liner support plate (132) being spaced apart from the first cylinder liner support plate (128) along an axis (X-X') defined by the plurality of cylinder liners (120), wherein the second cylinder liner support plate (132) is adapted to support a lower end (136) of the plurality of cylinder liners (120).
- The cylinder liner assembly (118) of claim 1 further including a plurality of openings (146) defined between each of the adjacent cylinder liners (120) of the plurality of cylinder liners (120).
- The cylinder liner assembly (118) of claim 4, wherein the plurality of openings (146) are equally spaced apart from each other along a length (L) of the engine block (102).
- The cylinder liner assembly (118) of claim 1, wherein the at least one opening (146) between the at least two adjacent cylinder liners (120) provides uniform stress distribution and optimizes pressure compensation in the engine block (102), during an operation of the engine (100).
- The cylinder liner assembly (118) of claim 1, wherein the at least one opening (146) between the at least two adjacent cylinder liners (120) optimizes pressure compensation in the engine block (102), during an operation of the engine (100).
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 (en) | 2019-04-10 |
EP3467287B1 EP3467287B1 (en) | 2022-04-20 |
Family
ID=60326870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18197805.7A Active EP3467287B1 (en) | 2017-10-06 | 2018-09-28 | Cylinder liner assembly for engine |
Country Status (2)
Country | Link |
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EP (1) | EP3467287B1 (en) |
GB (1) | GB2567208A (en) |
Citations (7)
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GB2044852A (en) * | 1979-03-21 | 1980-10-22 | Cummins Engine Co Inc | Engine cylinder block |
JPS5888440A (en) * | 1981-11-19 | 1983-05-26 | Toyota Motor Corp | Lightweight cylinder block with sheet metal part |
DE19849912A1 (en) * | 1998-10-29 | 2000-03-09 | Daimler Chrysler Ag | Liquid-cooled IC engine of open-deck construction has plate with cooling fluid chamber between crankcase and cylinder head around cylinder liners |
EP1288477A2 (en) * | 2001-08-31 | 2003-03-05 | Honda Giken Kogyo Kabushiki Kaisha | Cylinder block of plural cylinder engine |
JP2008232079A (en) * | 2007-03-22 | 2008-10-02 | Aichi Mach Ind Co Ltd | Cylinder block of internal-combustion engine and method of manufacturing the cylinder block |
WO2012137873A1 (en) * | 2011-04-07 | 2012-10-11 | 三菱重工業株式会社 | Cylinder jacket |
DE202016104878U1 (en) * | 2015-06-19 | 2016-09-21 | Neue Halberg-Guss Gmbh | Composite, crankcase and reciprocating internal combustion engine |
Family Cites Families (7)
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 (en) * | 1961-04-11 | |||
GB2140502B (en) * | 1983-05-25 | 1987-03-18 | Atomic Energy Authority Uk | An engine including fibre reinforced plastics |
JPS6094230A (en) * | 1983-10-31 | 1985-05-27 | Toyota Motor Corp | Method of manufacturing cylinder block |
JP2005155600A (en) * | 2003-10-31 | 2005-06-16 | Toyota Motor Corp | Water cooled engine and its cylinder block |
JP4367288B2 (en) * | 2004-08-17 | 2009-11-18 | トヨタ自動車株式会社 | Engine cylinder block |
-
2017
- 2017-10-06 GB GB1716367.6A patent/GB2567208A/en not_active Withdrawn
-
2018
- 2018-09-28 EP EP18197805.7A patent/EP3467287B1/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2044852A (en) * | 1979-03-21 | 1980-10-22 | Cummins Engine Co Inc | Engine cylinder block |
JPS5888440A (en) * | 1981-11-19 | 1983-05-26 | Toyota Motor Corp | Lightweight cylinder block with sheet metal part |
DE19849912A1 (en) * | 1998-10-29 | 2000-03-09 | Daimler Chrysler Ag | Liquid-cooled IC engine of open-deck construction has plate with cooling fluid chamber between crankcase and cylinder head around cylinder liners |
EP1288477A2 (en) * | 2001-08-31 | 2003-03-05 | Honda Giken Kogyo Kabushiki Kaisha | Cylinder block of plural cylinder engine |
JP2008232079A (en) * | 2007-03-22 | 2008-10-02 | Aichi Mach Ind Co Ltd | Cylinder block of internal-combustion engine and method of manufacturing the cylinder block |
WO2012137873A1 (en) * | 2011-04-07 | 2012-10-11 | 三菱重工業株式会社 | Cylinder jacket |
DE202016104878U1 (en) * | 2015-06-19 | 2016-09-21 | Neue Halberg-Guss Gmbh | Composite, crankcase and reciprocating internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
GB2567208A (en) | 2019-04-10 |
GB201716367D0 (en) | 2017-11-22 |
EP3467287B1 (en) | 2022-04-20 |
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