WO2017161910A1

WO2017161910A1 - Horizontally-opposed internal combustion engine

Info

Publication number: WO2017161910A1
Application number: PCT/CN2016/107967
Authority: WO
Inventors: 白云龙
Original assignee: 白云龙
Priority date: 2016-03-22
Filing date: 2016-11-30
Publication date: 2017-09-28
Also published as: CN105649773A

Abstract

The invention relates to the field of power equipment. Provided is a horizontally-opposed internal combustion engine, comprising a left cylinder body and a right cylinder body. A plurality of left piston-cylinder units are disposed on the left cylinder body. A plurality of right piston-cylinder units are disposed on the right cylinder body. The plurality of left piston-cylinder units and the plurality of right piston-cylinder units are symmetrically arranged. Axes of the opposed left piston-cylinder units and right piston-cylinder units overlap. The left cylinder body and the right cylinder body are mutually connected to constitute a crankcase. A rotatable crankshaft is disposed inside the crankcase. The crankshaft has a plurality of throws. Each throw is connected to two curved connecting rods. Each of the curved connecting rods is connected to a piston. Two pistons associated with the same throw are slidably connected to the interiors of the left piston-cylinder unit and the right piston-cylinder unit, respectively. The horizontally-opposed internal combustion engine of the invention can efficiently reduce the sizes of cylinder bodies thereof, reduce the length of a crankshaft, and reduce difficulty and strength in processing the cylinder bodies, thereby overcoming a defect of the prior art techniques.

Description

Horizontal full-opposed internal combustion engine

The present invention claims priority from Chinese Patent Application No. 201610165498.6, filed on March 22, 2016, and entitled "S.

Technical field

The present invention relates to the field of power machinery, and in particular to a horizontally opposed internal combustion engine.

Background technique

An internal combustion engine is a kind of power machine. It is a heat engine that converts the fuel into a power by directly burning the fuel inside the machine.

However, most of the existing internal combustion engines have problems such as a large volume, a long crankshaft, and troublesome processing.

Summary of the invention

It is an object of the present invention to provide a horizontally opposed internal combustion engine which has the problems of small size, short crankshaft, and convenient processing.

Embodiments of the invention are implemented as follows:

A horizontally opposed internal combustion engine comprising a left cylinder block and a right cylinder block, the left cylinder block is provided with a plurality of left piston cylinders, and the right cylinder block is provided with a plurality of right piston cylinders, a plurality of left piston cylinders and a plurality of The right piston cylinder is symmetrically disposed, and the opposite left piston cylinder and the right piston cylinder axis coincide, and the left cylinder and the right cylinder are connected to each other to form a crankcase. The crankcase is provided with a rotatable crankshaft, and the crankshaft is provided with a plurality of crankshafts. Each of the cranks is connected with two curved connecting rods, and the two connecting rods are respectively connected with pistons, and the two pistons on the same crank are respectively slidably connected to the opposite left and right piston cylinders. .

In a preferred embodiment of the present invention, the left cylinder is provided with two left piston cylinders, the two left piston cylinders being a first left piston cylinder and a second left piston cylinder, respectively, and the right cylinder body is provided with two right cylinders. Piston cylinder, two right piston cylinders are a first right piston cylinder and a second right piston cylinder, respectively, a first left piston cylinder and a first The right piston cylinder is symmetrically disposed, the second left piston cylinder is symmetrically disposed with the second right piston cylinder, and two cranks are disposed on the crankshaft, and the two cranks are the first crank and the second crank, respectively, and the first crank and The second crank is connected with two connecting rods, each of which is connected with a piston, and the two pistons on the first crank are respectively slidably connected to the first left piston cylinder and the first right piston cylinder, The two pistons on the two turns are slidably coupled to the second left piston cylinder and the second piston cylinder, respectively.

In a preferred embodiment of the present invention, a left cylinder head is connected to the left cylinder block, a left cam bracket is connected to the left cylinder head, a left cover is connected to the left cam bracket, and an air inlet is arranged on the left cylinder head and The air outlet, the air inlet and the air outlet are respectively connected with the left piston cylinder, and the left cylinder head, the left cam bracket and the left cover together form a left combustion chamber; the right cylinder body is connected with a right cylinder head, and the right cylinder head is connected with Right cam bracket, right cam bracket is connected with right cover, right cylinder cover is provided with air inlet and air outlet, air inlet and air outlet are respectively connected with right piston cylinder, right cylinder head, right cam bracket and right cover The cover together encloses the right combustion chamber.

In a preferred embodiment of the present invention, an intake manifold and an air outlet manifold are disposed between the left cylinder head and the right cylinder head, and the intake manifold is provided with an intake end and a plurality of air outlet ends, and the plurality of air outlet ends respectively The air outlet is connected with the air inlet of the left cylinder head and the right cylinder head, and the air outlet manifold is provided with an exhaust end and a plurality of air suction ends, and the plurality of air suction ends are respectively connected with the air outlets of the left cylinder head and the right cylinder head.

In a preferred embodiment of the present invention, one side of the crankcase is provided with a front cover, and the front cover covers the left cover, the left cam bracket, the left cylinder head, the left cylinder block, the right cylinder block, and the right cylinder head, Right cam bracket and right cover.

In a preferred embodiment of the present invention, the crankcase is provided with a cooling groove for dissipating heat from the left piston cylinder and the right piston cylinder, and the cooling groove is connected to the coolant inlet and the coolant outlet.

In a preferred embodiment of the present invention, the side wall of the piston is provided with a plurality of annular grooves, and the annular groove is provided with a sealing ring, and the sealing ring is a steel piston ring.

In a preferred embodiment of the present invention, the connecting rod includes a large head, a shaft and a small head which are sequentially connected, and a joint of the big head and the shaft and a joint of the shaft and the small head adopt a circular arc transition.

In a preferred embodiment of the invention, the output end of the crankshaft is provided with a flange, and the flange is provided There are multiple mounting through holes.

In a preferred embodiment of the present invention, a limited position protrusion is disposed on a side of the crankcase corresponding to the output end of the crankshaft, and the limiting protrusion surrounds the mounting cavity, and the limiting protrusion is provided with a plurality of connecting screw holes.

The beneficial effects of the embodiments of the present invention are:

The horizontally opposed internal combustion engine adopts a structure in which a crank connects two connecting rods and corresponds to two piston cylinders, which can effectively reduce the volume of the cylinder block of the internal combustion engine and shorten the length of the crankshaft, and at the same time, the plurality of piston cylinders are symmetrically arranged. The symmetrical two piston cylinder axes coincide, which can effectively reduce the processing difficulty and strength of the internal combustion engine cylinder, and make up for the defects of the prior art.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings show only certain embodiments of the present invention, and therefore It should be seen as a limitation on the scope, and those skilled in the art can obtain other related drawings according to these drawings without any creative work.

1 is a schematic structural view of a horizontally opposed internal combustion engine according to an embodiment of the present invention;

2 is a schematic structural view of another horizontal angle of the internal combustion engine according to an embodiment of the present invention;

3 is a schematic structural view of still another angle of a horizontally opposed internal combustion engine according to an embodiment of the present invention;

4 is a schematic structural diagram of a left cylinder body according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a left cylinder head according to an embodiment of the present invention.

6 is a schematic structural view of a crankshaft according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a connecting rod according to an embodiment of the present invention; FIG.

8 is a schematic structural view of another angle of a connecting rod according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of an intake manifold according to an embodiment of the present invention.

In the picture:

Left cylinder 100; left piston cylinder 105; left cylinder head 110;

Left cam bracket 120; left cover 130; right cylinder 200;

Right cylinder head 210; right cam bracket 220; right cover 230;

Crankshaft 300; crank turn 310; connecting rod 400; intake manifold 500;

Outlet manifold 600; front cover 700.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. The components of the embodiments of the invention, which are generally described and illustrated in the figures herein, may be arranged and designed in various different configurations.

Therefore, the following detailed description of the embodiments of the invention in the claims All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that similar reference numerals and letters indicate similar items in the following figures, and therefore, once an item is defined in a drawing, it is not necessary to further define and explain it in the subsequent drawings.

In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. The orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is conventionally placed when the invention product is used, for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or component referred to must have a particular orientation, is constructed and operated in a particular orientation, and thus is not to be construed as limiting the invention. Moreover, the terms "first", "second", "third", and the like are used merely to distinguish a description, and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it should be noted that the terms "set", "install", "connected", and "connected" are to be understood broadly, and may be fixed connections, for example, unless otherwise specifically defined and defined. It can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be internal communication between the two elements. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

First embodiment:

Referring to FIG. 1 , the embodiment provides a four-cylinder horizontal full-opposing internal combustion engine including a left cylinder 100 and a right cylinder 200. The left cylinder 100 is provided with two left piston cylinders 105 and two left piston cylinders. 105 are a first left piston cylinder and a second left piston cylinder, respectively. The right cylinder block 200 is provided with two right piston cylinders. The two right piston cylinders are respectively a first right piston cylinder and a second right piston cylinder. The first right piston cylinder is symmetrically disposed with the first left piston cylinder and the axes of the two are coincident. The second right piston cylinder is symmetrically disposed with the second left piston cylinder and the axes thereof are coincident. The plurality of left piston cylinders 105 and the plurality of right piston cylinders are symmetrically disposed.

The left cylinder block 100 and the right cylinder block 200 are detachably connected by bolts to jointly form a crankcase 300. The crankshaft 300 is provided with a rotatable crankshaft 300. The crankshaft 300 is provided with two cranks 310, and the two cranks 310 respectively It is a first crank 310 and a second crank 310. Two links 400 are connected to each of the first crank 310 and the second crank 310. Each of the links 400 is connected to a piston at one end of the crankshaft 300, and the two pistons on the first crank 310 are respectively slidably connected to In the first left piston cylinder and the first right piston cylinder, the two pistons on the second crank 310 are slidably coupled to the second left piston cylinder and the second piston cylinder, respectively.

The left cylinder 100 and the right cylinder 200 are similar in structure and have a rectangular parallelepiped shape as a whole. Accordingly, the crankcase 300 is also in the shape of a rectangular parallelepiped; the left cylinder 100 and the right cylinder 200 are respectively connected to each other. a semi-cylindrical support hole, after the left cylinder 100 and the right cylinder 200 are connected, the semi-cylindrical support holes of the two are in one-to-one correspondence to form a plurality of cylindrical support holes, and the plurality of cylindrical support holes and A plurality of cylindrical support portions on the crankshaft 300 are matched one by one; a balance block is disposed between the cranks 310 of the crankshaft 300 and the support portion to reduce the amplitude and frequency of vibration of the crankshaft 300 after high-speed rotation Rate; a sliding bearing is disposed between the crank 310 and the connecting rod 400 to ensure the smoothness of the relative rotation of the two.

The working principle and process of the horizontally opposed internal combustion engine are as follows: firstly, the piston makes a linear reciprocating motion in the piston cylinder under the driving of the energy generated by the combustion; then the connecting rod 400 is driven by the piston in the crankcase 300; Thereafter, the crankshaft 300 is rotated at a high speed in the crankcase 300 under the pushing of the connecting rod 400, and finally the power of the high-speed rotating crankshaft 300 is output from the output end to power the supporting equipment (such as a generator, etc.). In this way, the heat generated by the combustion of the fuel is converted into mechanical energy.

The piston cylinders of the existing internal combustion engines are mostly arranged on one side of the crankshaft 300 along a straight line, resulting in a larger volume of the entire cylinder, especially a longer span in the longitudinal direction, and accordingly, the crankshaft 300 is also longer. The difficulty and cost of the machining are greatly improved. At the same time, since the bearing is only impacted by the piston and the connecting rod 400 on one side, the balance of the crankshaft 300 is also not good, and noise and vibration are severe during operation.

In view of the above problems, the horizontal full-opposed internal combustion engine provided by the technical solution adopts a double-cylinder structure, and two sets of piston cylinders are symmetrically disposed on two cylinders and the axes of two symmetric piston cylinders coincide, correspondingly, The rod 400 and the piston are also respectively disposed on both sides of the crankshaft 300 and respectively correspond to the cylinder block and the piston cylinder on both sides of the crankshaft 300, which can greatly reduce the span of the cylinder length direction and shorten the crankshaft 300. The length reduces the difficulty and cost of machining the crankshaft 300. At the same time, since both sides of the crankshaft 300 are subjected to the impact of the piston and the connecting rod 400, the impact forces received on both sides can cancel each other, thereby improving the balance of the crankshaft 300 and reducing the balance. The noise and vibration during the operation of the entire horizontally opposed internal combustion engine effectively improve the NVH (noise, vibration and harshness) of the present extender.

Further, in the embodiment, a left cylinder head 110 is connected to the left cylinder block 100, a left cam bracket 120 is connected to the left cylinder head 110, and a left cover 130 is connected to the left cam bracket 120, and the left cylinder head 110 is disposed on the left cylinder head 110. There are two sets of air inlets and air outlets, wherein one set of air inlets and air outlets are respectively connected with the first left piston cylinder, and another set of air inlets and air outlets are respectively connected with the second left piston cylinder, and the left cylinder head 110 is respectively connected. The left cam bracket 120 and the left cover 130 together form a left combustion chamber; the right cylinder 200 is connected with a right cylinder The cover 210 has a right cam bracket 220 connected to the right cylinder head 210, and a right cover 230 connected to the right cam bracket 220. The right cylinder head 210 is also provided with two sets of air inlets and air outlets, one of which is a plurality of air inlets. And the air outlet respectively communicate with the first right piston cylinder, and the other group of the air inlet and the air outlet are respectively connected with the second right piston cylinder, and the right cylinder head 210, the right cam bracket 220 and the right cover 230 together form a right combustion chamber .

Wherein, the left cylinder head 110 and the right cylinder head 210 are symmetrically disposed on two sides of the crankcase 300, and the two structures are similar and generally flat and rectangular, and the left cam bracket 120 and the right cam bracket 220 are symmetrically disposed on the crankcase 300. Both sides are similar in structure and overall are rectangular frame structures; the left cover 130 and the right cover 230 are punctured and disposed on both sides of the crankcase 300, and the two structures are similar and respectively provided with spark plugs for ignition;

The left combustion chamber is provided with a left valve and a left cam, and the right combustion chamber is respectively provided with a right valve and a right cam. When the left cam opens the left valve, the left combustion chamber communicates with the left piston cylinder 105, and the energy generated by combustion in the left combustion chamber pushes the left piston. The piston in the cylinder 105, at this time, the right cam closes the right valve, the right combustion chamber is disconnected from the right piston cylinder, and the energy generated by combustion in the right combustion chamber pushes the piston in the right piston cylinder, so that the left and right valves alternately open and close to achieve two The alternating push of the pistons indirectly pushes the high speed rotation of the crankshaft 300 to convert the chemical energy generated by the combustion into the rotational power of the crankshaft 300;

When the four pistons move in the first left piston cylinder, the second left piston cylinder, the first right piston cylinder and the second right piston cylinder, respectively, an inhalation and exhaust effect is generated, and air is sucked from the air inlet to the left. The piston cylinder 105 and the two right piston cylinders discharge two left piston cylinders 105 and two right piston cylinders from the air outlet. The air inlet and the air outlet of the present embodiment are respectively disposed on the left cylinder head 110 and the right cylinder head 210. Opposite sides to facilitate the inhalation and discharge of air.

The purpose of the left cylinder head 110, the left cam bracket 120, the left cover 130, the right cylinder head 210, the right cam bracket 220, and the right cover 230 is that the structure is simple and symmetrical, the assembly is simple and convenient, and the horizontal full opposite can be effectively improved. The function of the internal combustion engine.

In this embodiment, an intake manifold 500 and an air outlet manifold 600 are disposed between the left cylinder head 110 and the right cylinder head 210. The intake manifold 500 is provided with an intake end and four air outlet ends, and the four air outlet ends respectively The two intake ports of the left cylinder head 110 are in communication with the two intake ports of the right cylinder head 210, and the exhaust manifold 600 is provided with exhaust gas. The end and the four suction ends communicate with the two air outlets of the left cylinder head 110 and the two air outlets of the right cylinder head 210, respectively.

Wherein, when the two left piston cylinders 105 and the two right piston cylinders are inhaled, the air first enters from the intake end of the intake manifold 500, and then passes through the intake ports of the left cylinder head 110 and the right cylinder head 210 to enter The left piston cylinder 105 and the right piston cylinder, after passing through the air outlets of the left cylinder head 110 and the right cylinder head 210, enter the air outlet manifold 600 and are finally discharged from the exhaust end of the air outlet manifold 600.

The purpose of the intake manifold 500 and the outlet manifold 600 is to facilitate centralized suction and exhaust of the two left piston cylinders 105 and the two right piston cylinders to optimize the structural layout of the horizontally opposed internal combustion engine.

In this embodiment, a front cover 700 is further disposed on one side of the crankcase 300, and the front cover 700 covers the left cover 130, the left cam bracket 120, the left cylinder head 110, the left cylinder 100, the right cylinder 200, The right cylinder head 210, the right cam bracket 220, and the right cover 230.

Wherein, the front cover 700 is connected to one side of the horizontal full-opposing internal combustion engine away from the generator by a plurality of bolts, and the plurality of spirals are arranged along the edge of the front cover 700 to improve the stability of the installation of the front cover 700; The cover 700 is provided with an oil inlet hole and an oil outlet hole for introducing and discharging lubricating oil.

The purpose of providing the front cover 700 is to effectively protect the various components of the horizontally opposed internal combustion engine, and at the same time facilitate the lubrication of the horizontally opposed internal combustion engine.

Further, in the present embodiment, the crankcase 300 is provided with cooling slots for dissipating heat from the two left piston cylinders 105 and the two right piston cylinders, and the cooling slots are connected to the coolant inlet and the coolant outlet.

Wherein, the cooling tank has two and is respectively disposed around the left piston cylinder 105 and the right piston cylinder to optimize the cooling effect; the coolant inlet and the coolant outlet are respectively disposed on both sides of the left piston cylinder 105 and the right piston cylinder. To facilitate the flow of coolant in the cooling tank.

The purpose of the cooling tank is to cool the left piston cylinder 105 and the right piston cylinder in an operating state, thereby preventing the normal operation of the horizontally opposed internal combustion engine from being affected by the excessive temperature.

Further, in this embodiment, the side wall of the piston is provided with a plurality of annular grooves, and the annular groove is provided with a sealing ring, and the sealing ring is a steel piston ring.

Wherein the annular groove has a rectangular cross section for processing; the plurality of annular grooves are along the height of the piston The temperature direction is evenly spaced; the steel has excellent wear resistance and fatigue resistance, and can be well suited to the working environment of the piston. At the same time, its friction coefficient is extremely low, which can greatly reduce the friction between the piston and the piston cylinder. It is very conducive to the high speed movement of the piston.

The purpose of providing a plurality of sealing rings is to prevent the pollutants generated by the combustion from entering the crankcase 300 through the gap between the piston and the piston cylinder, thereby ensuring the normal operation of the crankshaft 300 and the connecting rod 400 and prolonging the service life of both.

Further, in this embodiment, the connecting rod 400 includes a large head, a shaft and a small head which are sequentially connected, and a joint of the big head and the shaft and a joint of the shaft and the small head adopt a circular arc transition.

Wherein, the small head is used for connecting with the piston, the big head is used for connecting with the crankshaft 300; the small head is provided with a first rotating hole matched with the piston pin; the big head includes a fixing portion integrally formed with the shaft body and detachably connected to the fixing portion The upper movable portion; the cross section of the shaft is "work" shaped to increase the strength of the entire connecting rod 400; the shaft and the small head portion are bent at an angle with respect to the big head so that the two connected to the same crank 310 The connecting rods 400 and the pistons and piston cylinders corresponding to the two connecting rods 400 described above can be completely symmetrically arranged.

The purpose of setting the arc is to avoid stress concentration in the connecting rod 400, optimize the mechanical properties of the connecting rod 400, and extend the service life of the connecting rod 400.

Further, in the embodiment, the output end of the crankshaft 300 is provided with a flange, and the flange is provided with a plurality of mounting through holes.

Wherein, the flange is mainly used for connecting supporting equipment, such as a generator; the flange is generally disk-shaped, and a plurality of mounting through holes are evenly spaced along the circumferential direction of the flange, and a plurality of bolts respectively pass through the above installation The hole is locked to the shaft of the accessory equipment, such as the rotor of the generator.

The purpose of using the flange to connect the supporting equipment is that the structure is simple and the connection is stable, and the synchronous rotation of the crankshaft 300 and the rotating shaft of the supporting equipment can be effectively realized, and the normal power generation of the supporting equipment is ensured.

Further, in this embodiment, a finite position protrusion is disposed on a side of the crankshaft 300 corresponding to the output end of the crankshaft 300, and the limiting protrusion is surrounded by a mounting cavity, and the limiting protrusion is provided with a plurality of connecting screw holes.

Wherein, the shape and size of the mounting cavity match the bottom of the accessory device, so as to match the card of the device In and out; the outer wall of the supporting equipment is usually provided with a mounting protrusion, and the mounting protrusion is provided with a mounting through hole, and the spiral passes through the mounting through hole and is locked in the connecting screw hole of the limiting protrusion, thereby supporting the device Installed on this level of fully opposed internal combustion engine.

The purpose of the limit projection is to facilitate the positioning of the horizontally opposed internal combustion engine and the associated equipment, and to improve the structural stability of the entire horizontally opposed internal combustion engine.

The four-cylinder horizontal full-opposing internal combustion engine adopts a bell crank 310 connecting two connecting rods 400 and corresponding to the structure of two piston cylinders, which can effectively reduce the volume of the horizontally opposed internal combustion engine cylinder block and shorten the length of the crankshaft 300. The two piston cylinders symmetrically arranged and symmetrically aligned with the two piston cylinder axes can effectively reduce the processing difficulty and strength of the horizontally opposed internal combustion engine cylinders, and make up for the defects of the prior art.

Second embodiment:

The embodiment provides a horizontal full-opposing internal combustion engine, and its structural structure, working principle and technical effects obtained are basically the same as those of the first embodiment, except that the horizontal full-opposing internal combustion engine in the first embodiment is a four-cylinder. The horizontally opposed internal combustion engine, and the horizontally opposed internal combustion engine in this embodiment is a six-cylinder horizontal full-opposing internal combustion engine, that is, three of its left and right piston cylinders, and correspondingly, three cranks on the crankshaft .

Third embodiment:

The embodiment provides a horizontal full-opposing internal combustion engine, and its structural structure, working principle and technical effects obtained are basically the same as those of the first embodiment, except that the horizontal full-opposing internal combustion engine in the first embodiment is a four-cylinder. The horizontally opposed internal combustion engine, and the horizontally opposed internal combustion engine in this embodiment is an eight-cylinder horizontal full-opposing internal combustion engine, that is, four of its left and right piston cylinders, and correspondingly, four cranks on the crankshaft One.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. For those skilled in the art, various modifications and changes can be made to the present invention, such as the horizontal full-opposing internal combustion engine in the above three embodiments. It can also be a 10-cylinder horizontal full-opposed internal combustion engine, a 12-cylinder horizontal full-opposed internal combustion engine, a 16-cylinder horizontal full-opposing internal combustion engine, etc., which is determined according to actual needs. Therefore, Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A horizontally opposed internal combustion engine, comprising: a left cylinder block and a right cylinder block, wherein the left cylinder block is provided with a plurality of left piston cylinders, and the right cylinder block is provided with a plurality of right piston cylinders The plurality of left piston cylinders and the plurality of right piston cylinders are symmetrically disposed, and the opposite left piston cylinder and the right piston cylinder axis are coincident, and the left cylinder body and the right cylinder body are connected to each other to form a common a crankcase in which a rotatable crankshaft is disposed, a plurality of cranks are disposed on the crankshaft, and each of the cranks is connected with two curved connecting rods on the two connecting rods Two pistons are respectively connected to the pistons, and the two pistons on the same crank are respectively slidably connected to the opposite left and right piston cylinders.
A horizontally opposed internal combustion engine according to claim 1, wherein said left cylinder is provided with two said left piston cylinders, and said two left piston cylinders are respectively a first left piston cylinder and a second a left piston cylinder, wherein the right cylinder is provided with two of the right piston cylinders, and the two right piston cylinders are a first right piston cylinder and a second right piston cylinder, respectively, the first left piston cylinder and the The first right piston cylinder is symmetrically disposed, the second left piston cylinder is symmetrically disposed with the second right piston cylinder, and the crankshaft is provided with two of the cranks, and the two cranks are respectively first a crank and a second crank, wherein the first crank and the second crank are connected with two links, and each of the links is connected with a piston, and the first crank Two of the pistons are slidably coupled to the first left piston cylinder and the first right piston cylinder, and the two pistons on the second crank are respectively slidably coupled to the second left piston cylinder and the second piston cylinder Inside.
The horizontally opposed combustion engine according to claim 2, wherein a left cylinder head is connected to the left cylinder block, a left cam bracket is connected to the left cylinder head, and a left cam bracket is connected to the left cylinder bracket. a cover, the left cylinder head is provided with an air inlet and an air outlet, the air inlet and the air outlet respectively communicate with a left piston cylinder, and the left cylinder cover, the left cam bracket and the left cover together form a left a right cylinder head is connected to the right cylinder block, a right cam bracket is connected to the right cylinder head, a right cover is connected to the right cam bracket, and an air inlet is arranged on the right cylinder head And the air outlet, The air inlet and the air outlet are respectively connected to the right piston cylinder, and the right cylinder head, the right cam bracket and the right cover together form a right combustion chamber.
The horizontally opposed internal combustion engine according to claim 3, wherein an intake manifold and an intake manifold are disposed between the left and right cylinder heads, and the intake manifold is provided with an intake end And a plurality of air outlet ends respectively communicating with the air inlets of the left cylinder head and the right cylinder head, the air outlet manifold being provided with an exhaust end and a plurality of air suction ends, the plurality of air suction ends The ends are in communication with the air outlets of the left and right cylinder heads, respectively.
The horizontally opposed internal combustion engine according to claim 3, wherein one side of the crankcase is provided with a front cover, the front cover covers the left cover, the left cam bracket, the left cylinder head, and the left Cylinder block, right cylinder block, right cylinder head, right cam bracket, and right cover.
The horizontally opposed combustion engine according to claim 1, wherein said crankcase is provided with a cooling groove for dissipating heat of a left piston cylinder and a right piston cylinder, said cooling tank being connected with a coolant inlet and a coolant outlet. .
The horizontally opposed combustion engine according to claim 1, wherein a plurality of annular grooves are disposed on a side wall of the piston, a sealing ring is disposed in the annular groove, and the sealing ring is a steel piston ring. .
A horizontally opposed internal combustion engine according to claim 1, wherein said connecting rod comprises a large head, a shaft and a small head which are sequentially connected, a joint of the large head and the shaft, and a connection between the shaft and the small head Arc transitions are used everywhere.
The horizontally opposed internal combustion engine according to claim 1, wherein the output end of the crankshaft is provided with a flange, and the flange is provided with a plurality of mounting through holes.
The horizontally opposed internal combustion engine according to claim 9, wherein a side of the crankcase corresponding to the output end of the crankshaft is provided with a finite projection, and the limiting projection surrounds the mounting cavity, and the limiting convex A plurality of connection screw holes are provided in the up.