Electromagnetic engine

Abstract

This application discloses an electromagnetic engine, which includes a crankshaft, a housing, a transmission assembly, and a first coil assembly. The housing includes a base and multiple cylinder liner assemblies. The crankshaft is rotatably disposed in the base. Along the axial direction of the crankshaft, the multiple cylinder liner assemblies are arranged in the base, each cylinder liner assembly including multiple cylinder liners arranged at equal intervals around the axis of the crankshaft. The transmission assembly includes multiple connecting rods and multiple first magnetic elements. Each connecting rod is movably disposed in a cylinder liner, with one end hinged to the crankshaft. Each first magnetic element is movably disposed in a cylinder liner and hinged to the connecting rod. The first magnetic element has a top dead center (TDC) and a bottom dead center (BDC) in its corresponding cylinder liner. The first coil assembly includes multiple first coils and a first energy storage element. Each first coil is sleeved around the outer periphery of a cylinder liner and at least covers the TDC of the corresponding first magnetic element. The first energy storage element is configured to supply power to the first coil. The above-described electromagnetic engine is beneficial for energy saving.

Description

Technical Field

[0001] This application relates to the field of engine technology, and in particular to an electromagnetic engine. Background Technology

[0002] Existing engines are typically fuel-driven, converting the chemical energy of fuel combustion into mechanical energy. This method is inefficient and not conducive to energy conservation. Utility Model Content

[0003] In view of the above situation, it is necessary to provide an electromagnetic engine that is conducive to energy saving.

[0004] Embodiments of this application provide an electromagnetic engine, which includes a crankshaft, a housing, a transmission assembly, and a first coil assembly. The housing includes a base and multiple cylinder liner assemblies. The crankshaft is rotatably disposed in the base, and the multiple cylinder liner assemblies are arranged along the axial direction of the crankshaft in the base. Each cylinder liner assembly includes multiple cylinder liners arranged at equal intervals around the axis of the crankshaft. The transmission assembly includes multiple connecting rods and multiple first magnetic elements. Each connecting rod is movably disposed in a cylinder liner, with one end hinged to the crankshaft. Each first magnetic element is movably disposed in a cylinder liner, hinged to the end of the connecting rod away from the crankshaft. Each first magnetic element has a top dead center (TDC) and a bottom dead center (BDC) in its corresponding cylinder liner. The TDC is the point in the corresponding cylinder liner furthest from the crankshaft, and the BDC is the point in the corresponding cylinder liner closest to the crankshaft. The first coil assembly includes a plurality of first coils and a first energy storage device electrically connected to the plurality of first coils. Each first coil is sleeved on the outer periphery of a cylinder liner and at least covers the top dead center of the corresponding first magnetic element. The first energy storage device is configured to supply power to at least one first coil on a cylinder liner in each cylinder liner assembly. The energized first coil generates magnetic force to drive the first magnetic element to reciprocate between the bottom dead center and the top dead center. The first magnetic element driven by the first coil drives the crankshaft to rotate via a connecting rod.

[0005] When the aforementioned electromagnetic engine is running, the first energy storage component is powered by a first coil on at least one cylinder liner in each cylinder liner assembly. The energized first coil generates magnetic force to drive a first magnetic component to reciprocate between bottom dead center and top dead center. The first magnetic component driven by the first coil drives the crankshaft to rotate via a connecting rod. Compared to existing fuel-driven methods, electric drive improves conversion efficiency and saves energy. Furthermore, the simultaneous rotation of at least one connecting rod in multiple cylinder liner assemblies by the crankshaft helps increase the power of the electromagnetic engine.

[0006] In some embodiments of this application, the first coil is configured to generate a magnetic attraction force relative to the first magnetic element as the corresponding first magnetic element moves from the bottom dead center to the top dead center; and to generate a magnetic repulsion force relative to the first magnetic element as the corresponding first magnetic element moves from the top dead center to the bottom dead center.

[0007] In some embodiments of this application, the crankshaft includes multiple main journals and multiple cranks. Along the axial direction of the crankshaft, the multiple main journals are arranged at intervals, and the cranks are fixed between two adjacent main journals. One end of each crank is connected to multiple connecting rods corresponding to the same cylinder liner assembly, and the other end of each crank is provided with a counterweight.

[0008] In some embodiments of this application, the crank includes a connecting rod journal and crank arms fixed to both sides of the connecting rod journal. The crank arms are fixed to the main journal, and a counterweight is disposed at the end of the crank arm away from the connecting rod journal. The transmission assembly includes multiple bushings, each bushing including a main body and multiple connecting parts arranged at equal intervals around the main body. The main body is sleeved on the connecting rod journal, and the end of each connecting part away from the main body is hinged to a connecting rod.

[0009] In some embodiments of this application, the electromagnetic engine includes a second coil assembly, which includes a plurality of second coils and a second energy storage device electrically connected to the plurality of second coils. Each second coil is sleeved on the outer periphery of a cylinder liner and at least covers the bottom dead center of a corresponding first magnetic element. The first magnetic element moves relative to the second coil to generate current in the second coil. The second energy storage device is configured to store the electrical charge generated by the second coil.

[0010] In some embodiments of this application, the second energy storage device is electrically connected to the first energy storage device, and the second energy storage device is configured to charge the first energy storage device.

[0011] In some embodiments of this application, the outer peripheral wall of the cylinder liner is provided with a first slot and a second slot, the first coil is disposed in the first slot, and the second coil is disposed in the second slot.

[0012] In some embodiments of this application, the cylinder liner assembly includes a plurality of cylinder heads connected to the end of the cylinder liner away from the base, and the cylinder heads and cylinder liners are connected by fasteners.

[0013] In some embodiments of this application, the electromagnetic engine includes a plurality of second magnetic elements, each of which is disposed in a cylinder liner and fixed to the corresponding cylinder head, and the second magnetic elements generate magnetic repulsion with the corresponding first magnetic elements.

[0014] In some embodiments of this application, each cylinder liner assembly includes three cylinder liners arranged at equal intervals around the axis of the crankshaft. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an electromagnetic engine in one embodiment of this application.

[0016] Figure 2 yes Figure 1 A sectional view along section line AA.

[0017] Figure 3 This is a schematic diagram of the cylinder liner of an electromagnetic engine in one embodiment of this application.

[0018] Figure 4 This is a schematic diagram of the crankshaft of an electromagnetic engine in one embodiment of this application.

[0019] Explanation of main component symbols

[0020] Electromagnetic engine 100

[0021] Crankshaft 10

[0022] Axial X

[0023] Main journal 11

[0024] Curved 12

[0025] Counterweight 12A

[0026] Connecting rod journal 121

[0027] 122-arm

[0028] Free End 13

[0029] Output terminal 14

[0030] Casing 20

[0031] Base 21

[0032] Thickened part 211

[0033] Arched part 212

[0034] Cylinder liner assembly 22

[0035] Cylinder Liner 221

[0036] First slot 2211

[0037] Second card slot 2212

[0038] First sealing kit 2213

[0039] Second sealing kit 2214

[0040] Cylinder head 222

[0041] Transmission assembly 30

[0042] Link 31

[0043] First magnetic component 32

[0044] Top dead center 32A

[0045] Lower dead center 32B

[0046] Bushing 33

[0047] Main body 331

[0048] Connecting part 332

[0049] First coil assembly 40

[0050] First coil 41

[0051] Second coil assembly 50

[0052] Second coil 51

[0053] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0055] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or may also have a component that is centrally located. When a component is considered to be "set" on another component, it can be directly set on the other component or may also have a component that is centrally located.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0057] It should be understood that, considering the actual machining tolerance, in the technical solution of this application, when the two components are set in parallel / perpendicular directions, they are set in the same direction, and there may be a certain angle between the two components. The tolerance between the two components is allowed to be 0-±10%, and the tolerance between the two components is greater than, equal to or less than the allowable tolerance of 0-±10%.

[0058] Embodiments of this application provide an electromagnetic engine, which includes a crankshaft, a housing, a transmission assembly, and a first coil assembly. The housing includes a base and multiple cylinder liner assemblies. The crankshaft is rotatably disposed in the base, and the multiple cylinder liner assemblies are arranged along the axial direction of the crankshaft in the base. Each cylinder liner assembly includes multiple cylinder liners arranged at equal intervals around the axis of the crankshaft. The transmission assembly includes multiple connecting rods and multiple first magnetic elements. Each connecting rod is movably disposed in a cylinder liner, with one end hinged to the crankshaft. Each first magnetic element is movably disposed in a cylinder liner, hinged to the end of the connecting rod away from the crankshaft. Each first magnetic element has a top dead center (TDC) and a bottom dead center (BDC) in its corresponding cylinder liner. The TDC is the point in the corresponding cylinder liner furthest from the crankshaft, and the BDC is the point in the corresponding cylinder liner closest to the crankshaft. The first coil assembly includes a plurality of first coils and a first energy storage device electrically connected to the plurality of first coils. Each first coil is sleeved on the outer periphery of a cylinder liner and at least covers the top dead center of the corresponding first magnetic element. The first energy storage device is configured to supply power to at least one first coil on a cylinder liner in each cylinder liner assembly. The energized first coil generates magnetic force to drive the first magnetic element to reciprocate between the bottom dead center and the top dead center. The first magnetic element driven by the first coil drives the crankshaft to rotate via a connecting rod.

[0059] When the aforementioned electromagnetic engine is running, the first energy storage component is powered by a first coil on at least one cylinder liner in each cylinder liner assembly. The energized first coil generates magnetic force to drive a first magnetic component to reciprocate between bottom dead center and top dead center. The first magnetic component driven by the first coil drives the crankshaft to rotate via a connecting rod. Compared to existing fuel-driven methods, electric drive improves conversion efficiency and saves energy. Furthermore, the simultaneous rotation of at least one connecting rod in multiple cylinder liner assemblies by the crankshaft helps increase the power of the electromagnetic engine.

[0060] The embodiments of this application will be further described with reference to the accompanying drawings.

[0061] Please refer to the following: Figure 1 and Figure 2 The embodiments of this application provide an electromagnetic engine 100, which includes a crankshaft 10, a housing 20, a transmission assembly 30, and a first coil assembly 40.

[0062] The housing 20 includes a base 21 and a plurality of cylinder liner assemblies 22. The crankshaft 10 is rotatably disposed in the base 21. The plurality of cylinder liner assemblies 22 are arranged on the base 21 along the axial direction X of the crankshaft 22. Each cylinder liner assembly 22 includes a plurality of cylinder liners 221 arranged at equal intervals around the axis of the crankshaft 10.

[0063] Optionally, the number of cylinder liner assemblies 22 can be 2, 3, 4, 5, 6, 7, 8, etc.

[0064] Optionally, the number of cylinder liners 221 in each cylinder liner assembly 22 can be 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.

[0065] It should be noted that this application describes an embodiment in which there are 6 cylinder liner assemblies 22 and 3 cylinder liners 221 in each cylinder liner assembly 22.

[0066] The transmission assembly 30 includes multiple connecting rods 31 and multiple first magnetic elements 32. Each connecting rod 31 is movably disposed in a cylinder liner 221, with one end of the connecting rod 31 hinged to the crankshaft 10. Each first magnetic element 32 is movably disposed in a cylinder liner 221, with the first magnetic element 32 hinged to the end of the connecting rod 31 away from the crankshaft 10. The first magnetic element 32 has a top dead center (TDC) 32A and a bottom dead center (BDC) 32B in the corresponding cylinder liner 221. The TDC 32A is the point in the corresponding cylinder liner 221 where the first magnetic element 32 is farthest from the crankshaft 10, and the BDC 32B is the point in the corresponding cylinder liner 221 where the first magnetic element 32 is closest to the crankshaft 10.

[0067] The first coil assembly 40 includes a plurality of first coils 41 and a first energy storage device (not shown) electrically connected to the plurality of first coils 41. Each first coil 41 is sleeved around the outer periphery of a cylinder liner 221 and at least covers the top dead center 32A of the corresponding first magnetic element 32. The first energy storage device is configured to supply power to at least one first coil 41 on at least one cylinder liner 221 in each cylinder liner assembly 22. The energized first coil 41 generates magnetic force to drive the first magnetic element 32 to reciprocate between the bottom dead center 32B and the top dead center 32A. The first magnetic element 32 driven by the first coils 41 drives the crankshaft 10 to rotate via the connecting rod 31.

[0068] Optionally, the material of the first magnetic element 32 includes neodymium iron boron magnets to enhance the magnetism of the first magnetic element 32.

[0069] Optionally, the first energy storage device is a battery.

[0070] When the electromagnetic engine 100 is running, the first energy storage unit is powered by a first coil 41 on at least one cylinder liner 221 in each cylinder liner assembly 22. The energized first coil 41 generates magnetic force to drive a first magnetic element 32 to reciprocate between bottom dead center 32B and top dead center 32A. The first magnetic element 32 driven by the first coil 41 drives the crankshaft 10 to rotate via the connecting rod 31. Compared with the existing fuel-driven method, electric drive can improve conversion efficiency and save energy. Furthermore, the simultaneous rotation of at least one connecting rod 31 in multiple cylinder liner assemblies 22 and the crankshaft 10 helps to increase the power of the electromagnetic engine 100.

[0071] Please see Figure 2 In some embodiments, the first coil 41 is configured to generate a magnetic attraction force relative to the corresponding first magnetic element 32 as the first magnetic element 32 moves from the lower dead center 32B towards the upper dead center 32A, and to generate a magnetic repulsion force relative to the corresponding first magnetic element 32 as the first magnetic element 32 moves from the upper dead center 32A towards the lower dead center 32B. Specifically, the conversion between magnetic attraction and magnetic repulsion can be achieved by changing the direction of the current in the first coil 41.

[0072] Please see Figure 2 In some embodiments, the electromagnetic engine 100 includes a second coil assembly 50. The second coil assembly 50 includes a plurality of second coils 51 and a second energy storage device (not shown) electrically connected to the plurality of second coils 51. Each second coil 51 is sleeved around the outer periphery of a cylinder liner 221 and at least covers the lower dead center 32B of the corresponding first magnetic element 32. The first magnetic element 32 moves relative to the second coil 51 to generate a current in the second coil 51. The second energy storage device is configured to store the electrical energy generated by the second coils 51, thereby converting part of the kinetic energy during the operation of the electromagnetic engine 100 into electrical energy, thus achieving the function of power recovery and saving energy.

[0073] Optionally, the second energy storage device is a battery.

[0074] In some embodiments, the second energy storage device is electrically connected to the first energy storage device, and the second energy storage device is configured to charge the first energy storage device to supplement the power consumption of the first energy storage device, which is beneficial to saving energy.

[0075] Please see Figure 2 In some embodiments, along the axial direction X of the crankshaft 10, the base 21 includes a thickened portion 211 and an arched portion 212. Two adjacent thickened portions 211 are fixed together by the arched portion 212. The cylinder liner 221 is fixed to the thickened portion 211. The arched portion 212 is used to disperse the stress on the thickened portion 211 and improve the stability of the base 21 structure.

[0076] Please see Figure 3 In some embodiments, the outer peripheral wall of the cylinder liner 221 is provided with a first groove 2211 and a second groove 2212. A first coil 41 is disposed in the first groove 2211, with the groove wall of the first groove 2211 abutting against both ends of the first coil 41 to improve the stability of the first coil 41 fitted onto the cylinder liner 221. A second coil 51 is disposed in the second groove 2212, with the groove wall of the second groove 2212 abutting against both ends of the second coil 51 to improve the stability of the second coil 51 fitted onto the cylinder liner 221.

[0077] In some embodiments, a first sealing kit 2213 is provided on the periphery of the cylinder liner 221. The first sealing kit 2213 is sleeved on the outer peripheral wall of the cylinder liner 221 and is sealed to the first slot 2211. The first sealing kit 2213 and the first slot 2211 form a cooling cavity. The cooling cavity is filled with insulating cooling oil. The first coil 41 is disposed in the cooling cavity to cool the first coil 41.

[0078] In some embodiments, a second sealing kit 2214 is provided on the periphery of the cylinder liner 221. The second sealing kit 2214 is sleeved on the outer peripheral wall of the cylinder liner 221 and is sealed to the second slot 2212. The second sealing kit 2214 and the second slot 2212 constitute a cooling cavity. The cooling cavity is filled with insulating cooling oil. The second coil 51 is disposed in the cooling cavity to cool the second coil 51.

[0079] Please see Figure 3 In some embodiments, the cylinder liner assembly 22 includes a cylinder head 222 connected to the end of the cylinder liner 221 away from the base 21. The cylinder head 222 and the cylinder liner 221 are connected by fasteners to improve the stability of the connection between the cylinder head 222 and the cylinder liner 221 and to facilitate disassembly.

[0080] Optionally, the fastener is a bolt.

[0081] In some embodiments, the electromagnetic engine 100 includes a plurality of second magnetic elements, each of which is disposed in a cylinder liner 221 and fixed to a corresponding cylinder head 222. The second magnetic elements generate magnetic repulsion with the corresponding first magnetic elements 32 so as to complete the entire cycle by utilizing the repulsion.

[0082] Optionally, the material of the second magnetic element includes neodymium iron boron magnets to enhance the magnetism of the second magnetic element.

[0083] Please refer to the following: Figure 2 and Figure 4 In some embodiments, the crankshaft 10 includes a plurality of main journals 11 and a plurality of cranks 12. Along the axial direction X of the crankshaft 10, the plurality of main journals 11 are arranged at intervals, and the cranks 12 are fixed between two adjacent main journals 11. The cranks 12 correspond one-to-one with the cylinder liner assemblies 22. One end of each crank 12 is connected to a plurality of connecting rods 31 corresponding to the same cylinder liner assembly 22, and the other end of each crank 12 is provided with a counterweight 12A.

[0084] The crank 12 includes a connecting rod journal 121 and crank arms 122 fixed to both sides of the connecting rod journal 121. The crank arms 122 are fixed to the main journal 11, and a counterweight 12A is disposed at the end of the crank arm 122 away from the connecting rod journal 121. The transmission assembly 30 includes multiple bushings 33. Each bushing 33 includes a main body 331 and multiple connecting parts 332 arranged at equal intervals around the main body 331. The main body 331 is sleeved on the connecting rod journal 121. The end of each connecting part 332 away from the main body 331 is hinged to a connecting rod 31 to improve the stability of the hinge connection between the connecting rod 31 and the crankshaft 10.

[0085] In some embodiments, the crankshaft 10 includes a free end 13 and an output end 14, which are located at both ends of an integral structure formed by the main journal 11 and a plurality of cranks 12. The output end 14 is configured to be connected to a load, and the free end 13 is configured to be connected to an auxiliary drive device such as a starter motor.

[0086] In some embodiments, the electromagnetic engine 100 includes a starter motor drivenly connected to the free end 13. The starter motor is configured to guide the crankshaft 10 to rotate unidirectionally when the electromagnetic engine 100 is started, so as to reduce the risk of the crankshaft 10 reversing during startup and improve the stability of the operation of the electromagnetic engine 100.

[0087] In some embodiments, the electromagnetic motor 100 includes a plurality of sensors and a controller (not shown). The sensors are connected to the crankshaft 10 and configured to sense the angle of rotation of the crankshaft 10. The controller is connected between the sensors and a first energy storage device and is configured to control the first energy storage device to supply power to the corresponding first coil 41 based on the angle data acquired by the sensors.

[0088] Specifically, the sensor includes a signal disk, position markers, and a marker detector. The signal disk is fixed to the crankshaft 10 and rotates synchronously with it. The number of position markers is the same as the number of first magnetic elements 32, and they are located on the same circumference of the signal disk. Each position marker corresponds to one first magnetic element 32 located at the bottom dead center 32B. The position marker is a magnet. The marker detector is located near the signal disk to detect the position markers. The marker detector is a unipolar Hall sensor. When the marker detector detects a corresponding position marker, the controller controls the first energy storage device to supply power to the first coil 41 where the corresponding first magnetic element 32 is located.

[0089] In addition, those skilled in the art may make other changes within the spirit of this application. Of course, all such changes made in accordance with the spirit of this application should be included within the scope disclosed in this application.

Claims

1. An electromagnetic engine, characterized in that, The electromagnetic engine includes: Crankshaft; The housing includes a base and a plurality of cylinder liner assemblies, the crankshaft being rotatably disposed in the base, the plurality of cylinder liner assemblies being arranged along the axial direction of the crankshaft in the base, each of the cylinder liner assemblies including a plurality of cylinder liners arranged at equal intervals around the axis of the crankshaft; A transmission assembly includes multiple connecting rods and multiple first magnetic elements. Each connecting rod is movably disposed in a cylinder liner, with one end of the connecting rod hinged to the crankshaft. Each first magnetic element is movably disposed in a cylinder liner, with the first magnetic element hinged to the end of the connecting rod away from the crankshaft. The first magnetic element has a top dead center (TDC) and a bottom dead center (BDC) in the corresponding cylinder liner. The TDC is the point in the corresponding cylinder liner that is farthest from the crankshaft, and the BDC is the point in the corresponding cylinder liner that is closest to the crankshaft. A first coil assembly includes a plurality of first coils and a first energy storage device electrically connected to the plurality of first coils. Each first coil is sleeved around the outer periphery of one of the cylinder liners and at least covers the top dead center of the corresponding first magnetic element. The first energy storage device is configured to supply power to at least one of the first coils on the cylinder liner in each cylinder liner assembly. The energized first coil generates magnetic force to drive the first magnetic element to reciprocate between the bottom dead center and the top dead center. The first magnetic element driven by the first coil drives the crankshaft to rotate via the connecting rod.

2. The electromagnetic engine as described in claim 1, characterized in that, The first coil is configured to generate a magnetic attraction force relative to the first magnetic element as the corresponding first magnetic element moves from the bottom dead center toward the top dead center; and to generate a magnetic repulsion force relative to the first magnetic element as the corresponding first magnetic element moves from the top dead center toward the bottom dead center.

3. The electromagnetic engine as described in claim 1, characterized in that, The crankshaft includes multiple main journals and multiple cranks. Along the axial direction of the crankshaft, the multiple main journals are arranged at intervals. The cranks are fixed between two adjacent main journals. One end of each crank is connected to multiple connecting rods corresponding to the same cylinder liner assembly. The other end of each crank is provided with a counterweight.

4. The electromagnetic engine as described in claim 3, characterized in that, The crank includes a connecting rod journal and a crank arm fixed to both sides of the connecting rod journal. The crank arm is fixed to the main journal, and the counterweight is disposed at the end of the crank arm away from the connecting rod journal. The transmission assembly includes multiple bushings, each bushing comprising a main body and multiple connecting parts arranged at equal intervals around the main body. The main body is sleeved onto the connecting rod journal, and the end of each connecting part away from the main body is hinged to a connecting rod.

5. The electromagnetic engine as described in claim 1, characterized in that, The electromagnetic engine includes a second coil assembly, which includes a plurality of second coils and a second energy storage device electrically connected to the plurality of second coils. Each second coil is sleeved around the outer periphery of a cylinder liner and at least covers the bottom dead center of the corresponding first magnetic element. The first magnetic element moves relative to the second coil to generate current in the second coil. The second energy storage device is configured to store the electrical charge generated by the second coil.

6. The electromagnetic engine as described in claim 5, characterized in that, The second energy storage device is electrically connected to the first energy storage device, and the second energy storage device is configured to charge the first energy storage device.

7. The electromagnetic engine as described in claim 5, characterized in that, The outer peripheral wall of the cylinder liner is provided with a first slot and a second slot, the first coil is disposed in the first slot, and the second coil is disposed in the second slot.

8. The electromagnetic engine as described in claim 1, characterized in that, The cylinder liner assembly includes a plurality of cylinder heads, which are connected to the end of the cylinder liner away from the base, and the cylinder heads and the cylinder liner are connected by fasteners.

9. The electromagnetic engine as described in claim 8, characterized in that, The electromagnetic engine includes a plurality of second magnetic components, each of which is disposed in a cylinder liner and fixed to the corresponding cylinder head, and the second magnetic component generates a magnetic repulsion force with the corresponding first magnetic component.

10. The electromagnetic engine as claimed in claim 1, characterized in that, Each of the cylinder liner assemblies includes three cylinder liners arranged at equal intervals around the axis of the crankshaft.

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