WO2020134227A1 - Engine and assembly method therefor - Google Patents

Abstract

Disclosed is an engine, comprising an engine body (200) and an engine cylinder (100), wherein the engine body (200) comprises a power system (210) and a lubrication system (220); the engine cylinder (100) comprises a machine body (10), an integrated cylinder (30) and a second assembling face (15); the machine body (10) is provided with an upper crankshaft accommodation cavity (11) and a plurality of power cavities (12), and the power cavities (12) are in communication with the upper crankshaft accommodation cavity (11) to form a power space (101); the integrated cylinder (30) is provided with a lower crankshaft accommodation cavity (31), an oil storage cavity (32) and a first assembling face (331); the oil storage cavity (32) and the lower crankshaft accommodation cavity (31) are in communication with each other to form an accommodation space (301); the integrated cylinder (30) is mounted on the machine body (10) in such a way that the first assembling face (331) corresponds to the second assembling face (15) of the machine body (10); the accommodation space (301) of the integrated cylinder (30) is in communication with the power space (101); and the power system (210) and the lubrication system (220) are accommodated in the power space (101) and the accommodation space (301). In the engine, the number of assembly faces for the assembly of the engine is reduced, such that a good sealing characteristic can be obtained. Further provided is an assembly method for the engine.

Description

Engine and its assembly method Technical field

The invention relates to an engine, in particular to an engine and its assembling method.

Background technique

The engine is widely used in industrial and agricultural production and is the source of power for various mechanical devices. The engine includes an engine body and an engine block. The engine body is mounted on the engine block. The engine block supports a power system and a lubrication system of the engine body. The installation basis of various parts. At present, the body of the common engine block is mainly divided into three types: bisection type, gantry type and tunnel type. In general, low-power water-cooled high-speed diesel engines usually use a flat-bottom body structure in order to simplify the structure. However, the flat-bottom structure is not as rigid as the gantry and tunnel-type bodies. In order to improve the rigidity of the engine block, the engine block gradually appeared on the market adopts an integrated main bearing cap. By enhancing the rigidity of the main bearing cap, the overall rigidity of the engine block is effectively improved.

Specifically, referring to FIG. 1, an engine block 100P of an existing engine includes a body 10P, an integrated main bearing cap 20P, and an oil pan 30P, wherein the body 10P has multiple chambers, For installing the piston, connecting rod mechanism, crankshaft and other components of the engine, the integrated main bearing cover 20P includes a support frame 21P and a plurality of main bearing covers 22P, wherein the support frame 21P has an installation space 211P, multiple The main bearing caps 22P are spaced apart from each other in the installation space 211P, and both ends of the main bearing cap 22P extend integrally with the support frame 21P. The body 10P has a mounting end face 101P, the integrated main bearing cap 20P has an upper end face 201P and a lower end face 202P opposite to the upper end face 201P, the oil pan 30P has a sealed end face 301P and a housing Cavity 302P, the integrated main bearing cap 20P is mounted on the body 10P in such a manner that the upper end surface 201P is attached to the mounting end surface 101P of the body 10P to fix the crankshaft 200P of the engine, and the The installation space 211P of the integrated main bearing cover 20P communicates with the cavity of the body 10P. The oil pan 30P is attached to the integrated main bearing cap 20P in such a manner that the sealed end surface 301P is attached to the integrated main bearing cap 20P, and the accommodating cavity 302P of the oil pan 30P is in communication The accommodating cavity 302P of the integrated main bearing cap 20P, the accommodating cavity 302P of the integrated main bearing cap 20P is used to accommodate lubricating oil, so as to reduce the friction between parts of the engine. Also, when the oil pan 30P is mounted on the integrated main bearing cap 20P, the oil pan 30P seals the chamber of the body 10P and the installation of the integrated main bearing cap 20P Space 211P to avoid oil leakage and other phenomena.

However, the existing engine block 100P has many problems during actual use. First of all, the body 10P and the integrated main bearing cover 20P are made of cast iron material, and the density of the cast iron material is large, which results in a large weight of the entire engine block, which is not conducive to lightweight development of the engine. Secondly, the engine block is sealed by combining the assembled end faces, for example, the upper end face of the integrated main bearing cap 20P and the mounting face of the body 10P are attached to each other, and The sealing surface 31P of the oil pan 30P and the lower end surface 21P of the integrated main bearing cap 20P are attached to each other, thereby preventing leakage of the lubricant oil contained in the oil pan 30P. And each part of the end surfaces used for assembly is in contact with each other, there is a risk of oil leakage due to inadequate sealing caused by problems such as manufacturing accuracy. In other words, the more end faces used for assembly and sealing, the higher the risk of engine oil leakage.

Summary of the invention

An object of the present invention is to provide an engine and an assembly method thereof, in which the overall weight of the engine block is reduced by improving the structure of the engine block to facilitate the application of the engine block Lightweight engine.

Another object of the present invention is to provide an engine and its assembling method, wherein the engine block reduces the number of end faces for sealing, thereby reducing the risk of oil leakage during use of the engine.

Another object of the present invention is to provide an engine and its assembling method, wherein the engine block includes an engine block and an integrated cylinder block, wherein the main bearing cap is mounted on the engine block, and the integrated cylinder block The first assembling surface is combined with a second assembling surface of the machine body to be installed on the machine body, and the machine body is sealed to reduce the probability of oil leakage from the engine.

Another object of the present invention is to provide an engine and its assembling method, wherein the engine block further includes at least one main bearing cap, and a plurality of the main bearing caps are sequentially installed on the body to fix the engine A crankshaft is attached to the engine block, and each of the main bearing caps is independent of each other, so as to reduce the overall weight of the engine block.

Another object of the present invention is to provide an engine and its assembling method, wherein the main bearing cover and the integrated cylinder are arranged at a distance from each other, reducing the overall material of the engine cylinder, which is beneficial to cost saving and realization Lightweight.

Another object of the present invention is to provide an engine and its assembling method, wherein the main bearing cover is made of cast iron material, ensuring the rigidity of the engine block.

Another object of the present invention is to provide an engine and its assembling method, wherein the integrated cylinder of the engine block and the body are made of cast aluminum material, which reduces the overall weight of the engine block to benefit all The engine is lightened.

Another object of the present invention is to provide an engine and its assembling method, wherein both the second assembly surface of the machine body and the first assembly surface of the integrated cylinder are flange surfaces to avoid the first An assembly surface and the second assembly surface are pressed against each other during the installation process to be deformed, thereby reducing the possibility of oil leakage of the engine block during use.

Another object of the present invention is to provide an engine and its assembling method, wherein the integrated cylinder body includes a cylinder main body, wherein the outer surface of the cylinder main body is spaced outwardly convex or concave inwardly to form a wave shape The structure further enhances the overall rigidity of the integrated cylinder.

Another object of the present invention is to provide an engine and its assembling method, wherein the outer surface of the cylinder body is continuously convex outward or concave inward to form the wavy structure, thereby enhancing the integrated type The overall rigidity of the cylinder.

Another object of the present invention is to provide an engine and its assembling method, wherein the wave-shaped structure of the integrated cylinder increases the surface area of the integrated cylinder, which is beneficial to heat dissipation of the engine.

Another object of the present invention is to provide an engine and its assembling method, wherein the wave-shaped structure of the integrated cylinder increases the contact area between the machine body and the integrated cylinder, and improves the engine cylinder The stability is beneficial to alleviate the violent vibration of the liquid contained in the integrated cylinder, and can effectively suppress the vibration noise.

Another object of the present invention is to provide an engine and its assembling method, wherein the integrated cylinder further includes a plurality of reinforcing ribs, wherein the reinforcing ribs extend integrally outside the cylinder body to facilitate the improvement of the integration The rigidity of the cylinder.

Another aspect of the present invention is to provide an engine and an assembly method thereof, wherein the engine block includes a sealing element, and the sealing element is placed on the second assembly surface of the block and the integrated block Between the first assembling surfaces to avoid gaps between the first assembling surface and the second assembling surface.

Another object of the present invention is to provide an engine and its assembling method, wherein the integrated cylinder has a plurality of adaptation holes, the adaptation holes are formed on both sides of the integrated cylinder to facilitate the engine in It is subsequently applied to other mechanical devices, enhancing the versatility of the engine.

Another object of the present invention is to provide an engine and an assembly method thereof, wherein the integrated cylinder block includes a plurality of oil drain plug seats, wherein the oil drain plug seats are distributed on both sides and the bottom of the integrated cylinder block , So that the engine can be installed in other mechanical devices later, which enhances the versatility of the engine.

According to an aspect of the present invention, the present invention provides an engine including:

An engine body, wherein the engine body includes a power system and a lubrication system; and an engine block, wherein the engine block includes:

A machine body, wherein the machine body has an upper crankshaft accommodation cavity, a plurality of power chambers, and a second assembly surface, wherein the power chamber communicates with the upper crankshaft accommodation cavity to form a power space; and

An integrated cylinder, wherein the integrated cylinder has a lower crankshaft accommodating cavity, an oil storage cavity, and a first assembly surface. The oil storage cavity and the lower crankshaft accommodating cavity communicate with each other to form an accommodating space. The integrated cylinder is mounted on the machine body in such a manner that the first assembly surface corresponds to the second assembly surface of the machine body, and the accommodation space of the integrated cylinder body communicates with the power space, the The power system and the lubrication system are accommodated in the power space and the accommodation space.

According to an embodiment of the present invention, the engine cylinder head further includes a plurality of the main bearing caps, each of which is independent of each other, wherein the main bearing cap is mounted on the body.

According to an embodiment of the present invention, the main bearing cap and the integrated cylinder block of the engine cylinder head are arranged at intervals from each other.

According to an embodiment of the invention, the first assembly surface and the second assembly surface are flange surfaces.

According to an embodiment of the present invention, the integrated cylinder includes a cylinder body, and the surface of the cylinder body protrudes at intervals to form a wave-shaped structure.

According to an embodiment of the present invention, the integrated cylinder includes a cylinder body, and the surface of the cylinder body is recessed inward at intervals to form a wave-shaped structure.

According to an embodiment of the present invention, the integrated cylinder includes a cylinder body, and the surface of the cylinder body continuously bulges outward to form a wave-shaped structure.

According to an embodiment of the present invention, the integrated cylinder includes a cylinder body, and the surface of the cylinder body is continuously recessed inward to form a wave-shaped structure.

According to an embodiment of the invention, the body and the integrated cylinder are made of cast aluminum.

According to an embodiment of the present invention, the main bearing cover is made of cast iron.

According to an embodiment of the present invention, the engine cylinder head further includes a sealing element, wherein the sealing element is held between the first assembly surface of the integrated cylinder and the second assembly surface of the body between.

According to an embodiment of the present invention, the integrated cylinder further includes a plurality of reinforcing ribs, wherein the reinforcing ribs extend integrally with the cylinder body.

According to an embodiment of the present invention, the engine cylinder head is provided with a plurality of adapting holes, and the adapting holes are distributed around the integrated cylinder and the body.

According to an embodiment of the present invention, the engine cylinder head further includes a plurality of oil drain plug seats, wherein the oil drain plug seats are provided on both sides and the bottom of the integrated cylinder block.

According to another aspect of the present invention, the present invention further provides an engine assembly method, wherein the assembly method includes the following steps:

(i) Install a power system and a lubrication system in an engine block; and

(ii) A first assembly surface of a cylinder body of an integrated cylinder of the engine cylinder is combined with a second assembly surface of the engine body of the engine cylinder to assemble the engine.

According to an embodiment of the present invention, before the step (i), the assembling method further includes the step of: (iii) sequentially installing a plurality of independent main bearing covers on the body of the engine.

According to an embodiment of the present invention, in the above method, a second fitting groove of the main bearing cover is connected to a first fitting groove of a support seat of the machine body.

According to an embodiment of the present invention, in the step (ii), a lower crankshaft accommodating chamber of the integrated cylinder, an oil storage chamber and an upper crankshaft accommodating chamber of the machine body are connected.

According to an embodiment of the present invention, in the step (iii), the plurality of second assembly holes of the main bearing cover correspond to the plurality of first assembly holes of an assembly portion of the support base The main bearing cover is mounted on the support base of the machine body.

According to an embodiment of the present invention, in the step (iii), a connecting element is installed in the first mounting hole and the second mounting hole, and then the main bearing cover is fixed by a plurality of connecting elements To the body.

According to an embodiment of the present invention, in the step (ii), the plurality of third assembly holes of the cylinder body of the integrated cylinder corresponds to the plurality of fourth assembly holes of the machine body Way to install the integrated cylinder on the body.

According to an embodiment of the present invention, in the above method, the connecting element is installed in the third mounting hole and the fourth mounting hole, and then the integrated cylinder is fixed to the Body.

According to an embodiment of the present invention, in the step (iii), a sealing element is maintained between the first assembly surface of the cylinder body and the second assembly surface of the body to prevent all A gap is created between the first assembly surface and the second assembly surface.

According to an embodiment of the present invention, in the above method, the sealing element is deformed to prevent a gap between the first mounting surface and the second mounting surface.

BRIEF DESCRIPTION

FIG. 1 is a schematic exploded view of a conventional engine block.

2 is a schematic perspective view of an engine block according to a preferred embodiment of the present invention.

3A is an exploded view of the engine block according to the above preferred embodiment of the present invention.

3B is an exploded view of the engine block according to the above preferred embodiment of the present invention.

4A is a schematic diagram of a stage of the assembly process of the engine block according to the above-described preferred embodiment of the present invention.

4B is a schematic diagram of a stage of the assembly process of the engine block according to the above-described preferred embodiment of the present invention.

4C is a schematic diagram of a stage of the assembly process of the engine block according to the above preferred embodiment of the present invention.

4D is a schematic diagram of a stage of the assembly process of the engine block according to the above-described preferred embodiment of the present invention.

detailed description

The following description is used to disclose the present invention to enable those skilled in the art to implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art may think of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalent solutions, and other technical solutions without departing from the spirit and scope of the present invention.

Those skilled in the art should understand that in the disclosure of the present invention, the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", " The azimuth or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the azimuth or positional relationship shown in the drawings, which is only for convenience in describing the The description is simplified, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore the above terms should not be construed as limiting the present invention.

It can be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, and in other embodiments, the The number can be more than one, and the term "one" cannot be understood as a limitation on the number.

2 to 4D of the specification, an engine 1000 according to a preferred embodiment of the present invention will be described in the following description, wherein the engine 1000 includes an engine block 100 and an engine body 200, wherein The engine body 200 is provided in the engine block 100. Specifically, the engine block 100 includes a block 10, a plurality of main bearing covers 20, and an integrated block 30, wherein the block 10 has a power space 101, and the integrated block 30 has a receiving space 301, The integrated cylinder 30 is installed in the body 10, and the accommodating space 301 communicates with the power space 101. The engine body 200 includes a power system 210 and a lubrication system 220, the power system 210 and the lubrication system 220 are accommodated in the power space 101 and the accommodation space 301, the power system 210 is installed in The body 10, the main bearing cap 20 is mounted to the body 10 to fix the power system to the body 10, the lubrication system 220 can obtain the housing accommodated in the integrated cylinder 30 Accommodating a lubricating oil in the space 301 and transmitting the lubricating oil to the power system 210, thereby reducing the frictional resistance of the power system 210 during operation, so as to prolong the service life of the engine, and at the same time The temperature of the power system 210 can be reduced, and the engine 1000 can be prevented from malfunctioning due to the high temperature.

Specifically, referring to FIGS. 3A and 4A, the body 10 has an upper crankshaft accommodating chamber 11 and a plurality of power chambers 12, wherein the upper crankshaft accommodating chamber 11 and the power chamber 12 communicate with each other to form a述动力空间101。 The power space 101. The power system 210 of the engine body 200 includes a crankshaft 211 and a power assembly 212, wherein the power assembly 212 is drivably connected to the crankshaft 211, and the crankshaft 211 is accommodated in the upper crankshaft In the cavity 11, the power assembly 212 is accommodated in the power chamber 12. Further, the main bearing cover 20 is mounted on the body 10 and fixes the crankshaft 211 to the body 10. The integrated cylinder 30 has a lower crankshaft accommodating chamber 31 and an oil storage chamber 32, wherein the lower crankshaft accommodating chamber 31 and the oil storage chamber 32 communicate with each other to form the accommodating space 301 of the integrated cylinder 30 . The integrated cylinder 30 is installed in the machine body 10, the lower crankshaft accommodating chamber 31 communicates with the upper crankshaft accommodating chamber 11 and the oil storage chamber 32, the main bearing cap 20 and the crankshaft 211 are accommodated The lower crankcase 31 of the integrated cylinder 30. The oil storage chamber 32 is located below the lower crankshaft accommodating chamber 31. The oil storage chamber 32 is used to accommodate lubricating oil. The lubrication system 220 extends from the oil storage chamber 32 of the integrated cylinder 30 to The power chamber 12 of the engine block 10, the lubrication system 220 can obtain the lubricating oil contained in the oil storage chamber 32 of the integrated cylinder 30, and transmit the lubricating oil To each moving surface of the power system 210 to form a lubricant film on the moving surfaces of the crankshaft 211 and the power assembly 212 of the power system 210 to reduce the wear of the crankshaft 211 and the power assembly 212, At the same time, the moving crankshaft 211 and the power assembly 212 can be cooled and cooled.

Referring to FIG. 3B, the lubrication system 220 includes a filter 221, an oil pump 222, a filter 223, and an oil delivery pipe 224, wherein the oil delivery pipe 224 communicates with the machine filter 221 and the oil pump 222, The oil pump 222 and the filter 223 guide the lubricating oil through the oil delivery pipe 224 so that the lubricating oil is delivered to the moving surfaces of the crankshaft 211 and the power assembly 212. In some embodiments of the present invention, the oil delivery pipe 224 is formed in the engine block 100.

Specifically, the oil pump 222 can form a negative pressure so that the lubricating oil contained in the oil storage chamber 32 of the integrated cylinder 30 can continuously move in the extending direction of the oil delivery pipe 224 , In turn, circulating the lubricating oil inside the engine 1000. Further, the oil pipeline 224 includes a first oil pipeline 2241, wherein the first oil pipeline 2241 communicates with the oil filter 221 and the oil pump 222, and the oil filter 221 is accommodated in the oil storage chamber 32, the lubricating oil in the oil storage chamber 32 passes through the filter 221 under the negative pressure formed by the oil pump 22, and the filter 221 can filter impurities in the lubricating oil, such as , Large particles of mechanical impurities, etc., to improve the cleanliness of the lubricating oil entering the oil pipeline 224, to prevent impurities in the lubricating oil from being transported to the moving body 220 and accelerate the wear of parts.

3B, the oil pipeline 224 further includes a second oil pipeline 2242, wherein the second oil pipeline 2242 communicates with the oil pump 222 and the oil filter 223, passing through the oil pump 222 The lubricating oil flows into the filter 223 from the second oil delivery pipe 2242 under the negative pressure of the oil pump 222, and the filter 223 again filters out metal chips and air in the lubricating oil Impurities such as dust, lubricating oil oxides, and carbon particles resulting from incomplete combustion of fuel, further improve the cleanliness of the lubricating oil that reaches the moving surfaces of the crankshaft 211 and the power assembly 212.

Further, referring to FIG. 3B, the oil pipeline 22 includes a main oil pipeline 2243 and a plurality of sub oil pipelines 2244, wherein the sub oil pipeline 2244 communicates with the main oil pipeline 2243, and the main oil pipeline 2243 communicates with the filter Under the action of the oil pump 222, the oil passing through the filter 223 enters the main oil pipeline 2243, and the plurality of sub oil pipelines 2244 are spaced apart from each other in the main oil pipeline 2243, And guide the lubricating oil in the main oil pipeline 2243 into each of the sub-oil pipelines 2244, so that the lubricating oil is diverted. Each of the sub-pipelines 2244 corresponds to the crankshaft 211 and the power assembly 212 of the power body 210 to transmit the lubricating oil to the moving surfaces of the crankshaft 211 and the power assembly 212, and An oil film is formed on the surfaces of the crankshaft 211 and the power assembly 212 to reduce frictional resistance during operation, and at the same time to cool down high-speed running parts to avoid the engine 1000 from overheating and malfunctioning. Furthermore, the lubricating oil passing through the crankshaft 211 and the power assembly 212 returns to the oil storage chamber 32 of the integrated cylinder 30 again, and can continue under the action of the oil pump 222 Circulation.

For example, the lubricating oil passing through one of the sub-pipelines 2244 is sprayed to the back of a piston of the power assembly 212 to cool the piston of the power assembly 212, and at the same time to the power assembly 111 A piston pin is lubricated to reduce the frictional resistance between the piston pin and the connecting surface of the piston; the lubricating oil passing through the other sub-oil pipeline 2244 flows through a camshaft of the power assembly 212 to Reduce the frictional resistance of the camshaft during operation.

It is worth mentioning that the types of the filter 221, the oil pump 222, and the filter 223 of the lubrication system 220 are not limited. The filter 221 may be implemented as, but not limited to, a floating filter or a fixed filter. The oil pump 222 may be implemented as but not limited to a gear oil pump or a rotor oil pump. The filter 223 may be implemented as, but not limited to, a collector filter, a coarse filter, a fine filter, a composite filter, and other types of filters known to those skilled in the art.

Referring to FIG. 4A of the specification, the body 10 includes a cylinder body 13 and a plurality of support seats 14 spaced apart from each other, the upper crankshaft accommodating chamber 11 is formed in the cylinder body 11, and the plurality of support seats 14 are arranged in sequence It is provided in the upper crankshaft accommodating cavity 11, and both ends of the support base 14 respectively extend from the inner wall of the cylinder body 13. The crankshaft 211 is placed on the support seat 14 and the cylinder body 13, the support seat 14 and the cylinder body 13 jointly support the crankshaft 211, and the main bearing cover 20 is installed on the support seat 14. To fix the crankshaft 211 to the machine body 10 and reduce vibration of the crankshaft 211 during operation.

Specifically, the support base 14 includes two assembly parts 141 and a support part 142, wherein the assembly part 141 extends integrally with the inner wall of the cylinder body 13, and the support part 142 is formed from one assembly part 141 Extending integrally to the other mounting portion 141, the surface of the supporting portion 142 is recessed inwardly to form a first mounting groove 143, and the first mounting groove 143 communicates with the upper crankshaft accommodating cavity 11, the crankshaft 211 is accommodated in the first assembly groove 143 and the upper crankshaft accommodating cavity 11. Preferably, the first fitting groove 143 formed in the supporting portion 142 is semicircular, and the radius of the first fitting groove 143 is adapted to the radius of the crankshaft 211, so that the supporting portion 142 The surface of the can fit the crankshaft 211 to help ensure the stability of the engine 100.

Further, the assembling portion 141 of the support base 14 is provided with a first assembling hole 1411. Correspondingly, the two ends of the main bearing cover 20 are respectively provided with a second assembling hole 21, the main bearing cover 20 is The second assembling hole 21 of the main bearing cover 20 is mounted on the supporting seat 14 in a manner corresponding to the first assembling hole 1411 of the assembling portion 141 of the supporting seat 14 to fix the The crankshaft 211 is fixed to the body 10.

Specifically, referring to FIGS. 3A and 4B, the main bearing cover 20 includes a limiting portion 22 and two fixing portions 23. The limiting portion 22 integrally extends from one fixing portion 23 to the other fixing. In the portion 23, the surface of the limiting portion 22 is inwardly recessed to form a second assembly groove 24, and the second assembly groove 24 is semicircular, so that the main bearing cover 20 has an arch bridge structure. The radius of the second fitting groove 24 is adapted to the radius of the crankshaft 211, and the second fitting hole 21 is formed in the fixing portion 23. Further, the two fixing portions 23 of the main bearing cover 20 are respectively fixed to the two mounting portions 141 of the support base 14 of the body 10 so that the main bearing cover 20 is installed In the body 10, at the same time, the second assembly groove 24 communicates with the first assembly groove 143, the crankshaft 211 is located in the first assembly groove 143, the second assembly groove 24 and the upper crankshaft accommodating In the cavity 11, the crankshaft 211 is held between the main bearing cover 20 and the body 10.

Referring to FIGS. 3A and 4B, the engine block 100 further includes a plurality of connecting elements 40, the connecting elements 40 are mounted to the second assembly hole 20 of the main bearing cover 20 and the support seat 14 The first mounting hole 1411 of the mounting portion 141 mounts the main bearing cover 20 to the support base 14 of the body 10 via the connecting element 40. Preferably, the connecting element 40 is implemented as a bolt, and the main bearing cover 20 is fixed to the support seat 14 of the body 10 by bolting, for example, two high-grade M10 bolts are used to connect the Both ends of the main bearing cover 20 are fixed to the support seat 14 of the body 10.

Preferably, the body 10 is made of cast aluminum, which reduces the overall mass of the engine block 100, which is beneficial to the weight reduction of the engine 1000. Preferably, the main bearing cover 20 is made of cast iron material, so that the main bearing cover 20 has good wear resistance and rigidity, so as to ensure that the main bearing cover 20 can withstand greater pressure. More preferably, the material of the body 10 is die-cast aluminum alloy, that is, YL113; the material of the main bearing cover is nodular cast iron material, that is, QT450, which in turn makes the engine block 100 of the present invention have a good At the same time as rigidity, the overall quality is greatly reduced.

Preferably, the specific number of the support seat 14 and the main bearing cover 20 of the body 10 is implemented as four. It is worth mentioning that the specific numbers of the support seat 14 and the main bearing cover 20 are only for illustration, and cannot be a limitation on the content and scope of the engine block 100 of the present invention.

Specifically, referring to FIGS. 3A and 4C, the integrated cylinder 30 includes a cylinder body 33, the lower crankshaft accommodating chamber 31 and the oil storage chamber 32 are formed in the cylinder body 33, and the cylinder body 33 With a first assembly surface 331. Correspondingly, the body 10 has a second assembly surface 15, and the first assembly surface 331 of the cylinder body 33 can be attached to the second assembly surface 15 of the body 10, and then by a plurality of The connecting element 40 fixes the cylinder body 33 to the body 10. Preferably, the first assembly surface 331 of the integrated cylinder 30 and the second assembly surface 15 of the machine body 10 are flange surfaces, which is beneficial to avoid the first assembly surface 331 and the second The assembly surfaces 15 are pressed against each other during assembly to deform, thereby reducing the risk of oil leakage of the engine block 100 during use.

It is worth mentioning that the engine cylinder 100 can integrate the integrated cylinder only by combining the first assembly surface 331 of the cylinder body 33 and the second assembly surface 15 of the body 10 with each other The body 30 is installed in the body 10, and enables the upper crank chamber 11 of the body 10 and the lower crank chamber 31 and the oil storage chamber 32 of the integrated cylinder 30 to be sealed, relative to each other. Compared with the existing engine block, the engine block 100 of the present invention reduces the number of end faces used for sealing, thereby reducing the risk of oil leakage of the engine block 100 during use.

Further, referring to FIGS. 3A and 4C, the cylinder body 33 has a plurality of third mounting holes 332, the third mounting holes 332 are distributed on both sides of the cylinder body 33, and the body 10 has a plurality of The fourth assembly hole 16, the fourth assembly hole 16 is distributed on both sides of the body 10, the cylinder body 13 corresponds to the fourth assembly hole of the body 10 with the third assembly hole 332 16 is provided in the body 10, the connecting element 40 is installed in the third mounting hole 332 and the fourth mounting hole 16, the cylinder body 13 is connected to the cylinder body 13 by a plurality of the connecting elements 40 It is fixed to the body 10 to fix the crankshaft 211 to the body 10. Preferably, the connecting element 40 is implemented as a bolt, and the cylinder body 13 is fixed to the body 10 by 14 M8 bolts and 2 M6 bolts.

It is worth mentioning that the main bearing cover 20 and the integrated cylinder 30 are spaced apart from each other, that is, there is a gap between the main bearing cover 20 and the integrated cylinder 30, which reduces The overall material of the engine block 100 reduces the overall mass of the engine block 100 on the one hand, so as to facilitate the weight reduction of the engine 1000; on the other hand, it saves the manufacturing cost of the engine block 100.

Preferably, the cylinder body 33 is a wave-shaped structure. Specifically, at least one surface of the cylinder body 33 is convexly spaced outwards to form the wavy structure, so as to enhance the rigidity of the integrated cylinder 30. Further, the area of the first assembly surface 331 of the cylinder body 33 is increased, thereby increasing the contact area of the cylinder body 33 and the body 10, on the one hand, it is beneficial to the integrated cylinder 30 and the stability of the engine block 10 are combined with each other, on the other hand, the sealing effect of the contact surface of the integrated cylinder block 30 and the engine block 10 is further strengthened to reduce the engine block 100 during use Risk of oil leakage.

It is worth mentioning that the temperature of the lubricating oil contained in the oil storage chamber 32 of the integrated cylinder 30 rises sharply during the work of the engine 1000, and once the temperature is too high, it will cause the engine 1000 failure occurs, and the wave-shaped cylinder body 33 increases the heat dissipation area of the integrated cylinder body 30, which facilitates the temperature of the lubricating oil contained in the oil storage chamber 32 to quickly pass through the cylinder body The surface of 33 is transferred to the external space to ensure the normal operation of the engine 100. In addition, the wave-shaped structure of the cylinder body 33 is helpful to reduce the violent vibration of the lubricating oil contained in the oil storage chamber 32 of the integrated cylinder 30, not only to avoid the rapid temperature rise of the lubricating oil due to the violent vibration And, it reduces the possibility of the oil overflowing during the violent shock. Moreover, the wave-shaped structure of the cylinder body 33 is also beneficial to suppress vibration noise generated by the engine 1000 during work.

Preferably, the surface of the cylinder body 33 is recessed inward at intervals to form the wave-shaped structure. In some embodiments of the present invention, the surface of the cylinder body 33 is convex outward and concave inward at intervals to form the wavy structure. In other embodiments of the present invention, the surface of the cylinder body 33 is continuously convex outward or continuously concave inward to form the wave-shaped structure.

The integrated cylinder 30 further includes a plurality of reinforcing ribs 34, wherein the reinforcing ribs 34 extend integrally on the outer surface of the cylinder body 33, and the reinforcing ribs 34 extend from bottom to top, which is beneficial to strengthen the The overall rigidity of the integrated cylinder 30. Preferably, the reinforcing ribs 34 are distributed on both sides of the integrated cylinder 30.

It is worth mentioning that the integrated cylinder block 30 is made of cast aluminum material, which reduces the overall quality of the engine block 100 to facilitate the lightweighting of the engine 1000. At the same time, the cast aluminum material has good thermal conductivity It is advantageous to quickly transfer the temperature of the lubricating oil contained in the oil storage chamber 32 to the external space through the surface of the integrated cylinder 30. More preferably, the material of the integrated cylinder block 30 is die-cast aluminum alloy, that is, YL113. The integrated cylinder 30 may be implemented as a mold casting.

The engine block 100 further includes a sealing element, wherein the sealing member 50 is held by the first assembly surface 331 of the cylinder body 33 of the integrated cylinder block 30 and the first assembly surface of the body 10 Between the two assembly surfaces 15 to prevent the lubricant contained in the oil storage chamber 32 of the integrated cylinder 30 from the first assembly surface 331 and the second assembly surface by the sealing element The gap between 15 overflows and affects the normal operation of the engine 1000, which is further conducive to improving the sealing performance of the engine block. Preferably, the sealing element is a prefabricated part, that is, the sealing element 50 is pre-manufactured, and the shape and structure of the sealing element 50 are opposite to the first assembly surface 331 and the second assembly surface 15 adaptation. Preferably, the sealing element has elasticity, and the sealing element can be implemented as a rubber sealing element or a silicone sealing element, wherein the sealing element can be integrated by the second mounting surface 15 of the body 10 and the integrated The first assembly surface 331 of the cylinder body 33 of the cylinder body 30 is pressed to elastically deform to prevent a gap between the first assembly surface 331 and the second assembly surface 15. Preferably, by spraying a viscous material on the second assembly surface 15 of the body 10, when the first assembly surface 331 of the cylinder body 33 of the integrated cylinder 30 is bonded to the body 10 The second assembly surface 15, the viscous material is pressed to adhere to the first assembly surface 331 and the second assembly surface 15, and to prevent the first assembly surface 331 and the second There is a gap between the mounting surfaces 15 to prevent the lubricant contained in the oil storage chamber 32 from overflowing.

Referring to FIG. 3A, the engine block is provided with a plurality of adapting holes 60, wherein the adapting holes 60 are distributed around the integrated cylinder 30 and the body 10, so that the engine 1000 can easily The engine block 100 is subsequently installed with different mechanical devices, so that the engine 1000 can provide kinetic energy for the different mechanical devices, thereby improving the general performance of the engine block 100.

Referring to FIG. 3A, the engine block includes a plurality of oil drain plug seats 70, wherein the oil drain plug seats 70 are disposed on both sides and the bottom of the integrated cylinder body 30 to facilitate the engine 1000 to borrow The engine block 100 is subsequently installed with different mechanical devices, thereby improving the general performance of the engine block 100.

4A-4D, according to another aspect of the present invention, the present invention further provides an assembly method of the engine 1000, wherein the assembly method includes the following steps:

(i) Install the power system 210 and the lubrication system 220 to the engine block 100; and

(ii) The first assembly surface 331 of the cylinder body 33 of the integrated cylinder 30 of the engine block 100 is combined with the second assembly surface of the body 10 of the engine block 100 15. To assemble the engine 1000.

Further, after the step (i), the assembling method further includes the step (iii): sequentially installing a plurality of independent main bearing caps 20 on the support seat of the engine block 10 of the engine block 100 14. To fix the crankshaft 211 of the engine 1000 to the machine body 10.

Specifically, before the step (iii), the crankshaft 211 is accommodated in the upper crankshaft accommodating cavity 11 of the machine body 10 and the first fitting groove 143 of the support seat 14. In the step (iii), the plurality of second mounting holes 21 of the main bearing cover 20 correspond to the plurality of first mounting holes 1411 of the mounting portion 141 of the support seat 14 The main bearing cover 20 is mounted on the support base 14 of the machine body 10 in a manner. Further, the connecting element 40 is installed in the first mounting hole 1411 and the second mounting hole 21, and then the main bearing cover 20 is fixed to the body 10 by a plurality of connecting elements 40. At the same time, a second assembling groove 24 communicating with the main bearing cap 20 is connected to the first assembling groove 143 of the support base 14 of the body 10, and the crankshaft 211 is held between the main bearing cap 20 and Between the body 10.

In the step (ii), the plurality of third assembly holes 332 of the cylinder body 33 of the integrated cylinder 30 correspond to the plurality of fourth assembly holes 16 of the machine body 10 The first assembly surface 331 of the cylinder body 33 is on the second assembly surface 15 of the machine body 10. Further, the connecting element 40 is installed in the third mounting hole 332 and the fourth mounting hole 16, and then the integrated cylinder 30 is fixed to the body 10 by the connecting element 40. At the same time, a lower crankshaft accommodating chamber 31, an oil storage chamber 32 communicating with the integrated cylinder 30 and an upper crankshaft accommodating chamber 11 of the machine body 10 are connected, wherein the oil storage chamber 32 contains a lubricating oil for the The crankshaft 211 can obtain the lubricating oil during the subsequent operation, thereby reducing the frictional resistance generated during the operation.

In a preferred embodiment of the present invention, in the step (ii), the sealing element is held on the first assembly surface 331 of the cylinder body 33 and the second assembly of the body 10 Between the surfaces 15 to prevent a gap between the first assembly surface 331 and the second assembly surface 15 to prevent the lubricant contained in the oil storage chamber 32 from overflowing. Preferably, a prefabricated sealing member 50 is provided on the second assembly surface 15 of the body 10, and the first assembly surface 331 of the cylinder body 33 is combined with the first assembly surface 331 of the body 10 During the process of the second assembly surface 15, the first assembly surface 331 and the second assembly surface 15 press the sealing element, and the sealing element deforms and prevents the first assembly surface 331 and the second There is a gap between the assembly surfaces 15. Preferably, a viscous material is sprayed onto the second assembly surface 15 of the machine body 10, and the first assembly surface 331 of the cylinder body 33 is combined with the second assembly surface 15 of the machine body 10 During the process, the first assembly surface 331 and the second assembly surface 15 squeeze the sealing element, the sealing element conforms to the first assembly surface 331 and the second assembly surface 15, and prevents all There is a gap between the first mounting surface 331 and the second mounting surface 15.

Those skilled in the art can understand that the above embodiments are only examples, and the features of the different embodiments can be combined with each other to obtain the contents disclosed according to the present invention. It is easy to think of the embodiments that are not clearly indicated in the drawings.

Those skilled in the art should understand that the embodiments of the present invention shown in the above description and the accompanying drawings are only examples and do not limit the present invention. The object of the present invention has been completely and effectively achieved. The functions and structural principles of the present invention have been shown and described in the examples. Without departing from the principles, the embodiments of the present invention may have any variations or modifications.

Claims (25)

1. An engine, characterized by including:

   An engine body, wherein the engine body includes a power system and a lubrication system; and

   An engine block, wherein the engine block includes:

   A machine body, wherein the machine body has an upper crankshaft accommodation cavity, a plurality of power chambers, and a second assembly surface, wherein the power chamber communicates with the upper crankshaft accommodation cavity to form a power space; and

   An integrated cylinder, wherein the integrated cylinder has a lower crankshaft accommodating cavity, an oil storage cavity, and a first assembly surface. The oil storage cavity and the lower crankshaft accommodating cavity communicate with each other to form an accommodating space. The integrated cylinder is mounted on the machine body in such a manner that the first assembly surface corresponds to the second assembly surface of the machine body, and the accommodation space of the integrated cylinder body communicates with the power space, the The power system and the lubrication system are accommodated in the power space and the accommodation space.
2. The engine according to claim 1, wherein the engine cylinder head further includes a plurality of the main bearing caps, each of which is independent of each other, wherein the main bearing cap is mounted on the body.
3. The engine according to claim 2, wherein the main bearing cap of the engine cylinder head and the integrated cylinder block are arranged at a distance from each other.
4. The engine according to claim 3, wherein the first mounting surface and the second mounting surface are flange surfaces.
5. The engine according to claim 3, wherein the integrated cylinder body includes a cylinder body, and a surface of the cylinder body protrudes at intervals to form a wave-shaped structure.
6. The engine according to claim 3, wherein the integrated cylinder body includes a cylinder body, and a surface of the cylinder body is recessed inward at intervals to form a wave-shaped structure.
7. The engine according to claim 3, wherein the integrated cylinder body includes a cylinder body, and a surface of the cylinder body continuously bulges outward to form a wave-shaped structure.
8. The engine according to claim 3, wherein the integrated cylinder body includes a cylinder body whose surface is continuously recessed inwardly to form a wave-shaped structure.
9. The engine according to claim, wherein the engine block and the integrated cylinder block are made of cast aluminum material.
10. The engine according to claim 8, wherein the engine block and the integrated cylinder block are made of cast aluminum material.
11. The engine according to claim 9, wherein the main bearing cap is made of cast iron material.
12. The engine according to claim 11, wherein the engine cylinder head further includes a sealing element, wherein the sealing element is held by the first assembly surface of the integrated cylinder and the second of the body Between assembly surfaces.
13. The engine of claim 12, wherein the integrated cylinder block further includes a plurality of reinforcing ribs, wherein the reinforcing ribs extend integrally with the cylinder body.
14. The engine according to claim 13, wherein the engine cylinder head is provided with a plurality of adapting holes, and the adapting holes are distributed around the integrated cylinder and the body.
15. The engine according to claim 14, wherein the engine cylinder head further includes a plurality of oil drain plug seats, wherein the oil drain plug seats are provided on both sides and the bottom of the integrated cylinder block.
16. An engine assembly method, characterized in that the assembly method includes the following steps:

    (i) Install a power system and a lubrication system in an engine block; and

    (ii) A first assembly surface of a cylinder body of an integrated cylinder of the engine cylinder is combined with a second assembly surface of the engine body of the engine cylinder to assemble the engine.
17. The assembling method according to claim 16, before the step (i), the assembling method further comprises the step of: (iii) sequentially installing a plurality of independent main bearing covers on the body of the engine.
18. The assembling method according to claim 17, wherein, in the above method, a second assembling groove connecting the main bearing cap is connected with a first assembling groove of a supporting base of the machine body.
19. The assembling method according to claim 18, wherein, in the step (ii), a lower crankshaft accommodating chamber, an oil storage chamber and an upper crankshaft accommodating chamber of the body are connected to the integrated cylinder.
20. The assembling method according to claim 19, wherein in the step (iii), the plurality of second assembling holes of the main bearing cover correspond to the plurality of first assemblings of an assembling portion of the support seat The main bearing cover is mounted on the support base of the machine body by way of a hole.
21. The assembling method according to claim 20, wherein in the step (iii), a connecting element is installed in the first mounting hole and the second mounting hole, and then the connecting element The main bearing cover is fixed to the body.
22. The assembling method according to claim 21, wherein in the step (ii), the plurality of third assembly holes of the cylinder body of the integrated cylinder body correspond to a plurality of third assembly holes of the body Four integrated holes are used to install the integrated cylinder in the body.
23. The assembling method according to claim 22, wherein in the above method, the connecting element is installed in the third assembling hole and the fourth assembling hole, and then the integrated cylinder is assembled by the connecting element Fixed to the body.
24. The assembling method according to claim 17, wherein in the step (iii), a sealing element is maintained between the first assembling surface of the cylinder body and the second assembling surface of the machine body To prevent a gap between the first assembly surface and the second assembly surface.
25. The assembly method according to claim 24, wherein in the above method, the sealing element is deformed to prevent a gap between the first assembly surface and the second assembly surface.

Images