CN209838549U - Special high-efficient combustion cylinder head of motorcycle - Google Patents

Abstract

The utility model discloses a special high-efficient burning cylinder head of motorcycle, concretely relates to smart machine technical field, including the cylinder head body, the integrated shaping of front side position department is leaned on to cylinder head body top has the cam support, cylinder head body top intermediate position department symmetry is provided with exhaust passage and intake duct, exhaust passage one side is provided with the intake duct. The utility model discloses in carry out streamlined optimal design through carrying out exhaust passage and intake duct, and to rational arrangement and the matching between each spare part of engine, the circulation resistance of air in combustion cylinder head inside has been reduced, its exhaust efficiency and air intake efficiency have been improved, thereby performance to the engine promotes there is very big effect, great extension the life of engine, make the cylinder head body more smooth in the inside operation of engine, the stationarity when having guaranteed the motorcycle and riding, this combustion cylinder head reasonable in design, moreover, the steam generator is simple in structure, the in-service use is effectual, be convenient for to market promotion.

Description

Special high-efficient combustion cylinder head of motorcycle

Technical Field

The utility model relates to an intelligent equipment technical field, more specifically say, the utility model relates to a special high-efficient burning cylinder head of motorcycle.

Background

With the rapid development of society, the living standard of people is improved, and the modern walking tools are more and more diversified, wherein the motorcycle is a faster riding tool, the engines in the motorcycle are all gasoline-burning, the engines are machines capable of converting other forms of energy into mechanical energy, including an internal combustion engine, an external combustion engine and a motor, for example, the internal combustion engine is usually used for converting chemical energy into mechanical energy, the engines are suitable for a power generation device, and can also refer to the whole machine including a power device, and the engines mainly comprise combustion cylinder heads, cylinder sleeves, cylinder covers, cylinder cushions and other parts.

However, the combustion cylinder head in the engine still has more defects in actual use, and because the air inlet channel and the air outlet channel in the combustion cylinder head are unreasonable in design, resistance in air circulation is increased to influence exhaust efficiency and air inlet efficiency, so that the service performance of the engine is greatly reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a special high-efficient combustion cylinder head of motorcycle, through carrying out streamlined optimal design to exhaust passage and intake duct, and to rational arrangement and the matching between each spare part of engine, thereby performance promotion to the engine has very big effect, great extension the life of engine, make the cylinder head body more smooth in the inside operation of engine, the stationarity when having guaranteed the motorcycle and riding, in order to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-efficiency combustion cylinder head special for a motorcycle comprises a cylinder head body, wherein a cam support is integrally formed at a position close to the front side above the cylinder head body, an exhaust passage and an air inlet passage are symmetrically arranged at the middle position above the cylinder head body, and the air inlet passage is arranged at one side of the exhaust passage;

an inner angle bending part is arranged on the inner side wall of the exhaust passage, and a streamline part is arranged on the inner side wall of the air inlet passage.

In a preferred embodiment, a rocker arm mounting hole is formed at a position close to the rear side above the cylinder head body, and a rocker arm is mounted above the rocker arm mounting hole in a matching manner.

In a preferred embodiment, an air filter and a carburetor are fixedly connected below the exhaust passage, and an exhaust pipe is fixedly connected below the intake passage.

In a preferred embodiment, a cam is fittingly mounted above the cam support, and the cam is externally provided in a fluid type structural design.

In a preferred embodiment, an intake valve and an exhaust valve are respectively and correspondingly arranged on the lower surface of the cylinder head body, and the exhaust valve is arranged on one side of the intake valve.

The utility model discloses a technological effect and advantage:

the utility model discloses in carry out streamlined optimal design through carrying out exhaust passage and intake duct to rational arrangement and the matching between each spare part of engine, reduced the circulation resistance of air in combustion cylinder head inside, improved its exhaust efficiency and intake efficiency, thereby performance promotion to the engine has very big effect, great extension the life of engine, make the cylinder head body more smooth in the inside operation of engine, guaranteed the stationarity of motorcycle when riding.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is an enlarged schematic structural view of a portion a in fig. 2 according to the present invention.

Fig. 4 is an enlarged schematic structural view of a portion B in fig. 2 according to the present invention.

Fig. 5 is a front view of the present invention.

The reference signs are: the cylinder head comprises a cylinder head body 1, a cam support 2, an exhaust passage 3, an air inlet passage 4, a rocker arm mounting hole 5, an inner angle bending part 6 and a streamline part 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The efficient combustion cylinder head special for the motorcycle as shown in the attached figures 1-5 comprises a cylinder head body 1, wherein a cam support 2 is integrally formed at a position close to the front side above the cylinder head body 1, an exhaust passage 3 and an air inlet passage 4 are symmetrically arranged at the middle position above the cylinder head body 1, and the air inlet passage 4 is arranged at one side of the exhaust passage 3;

an inner corner bending part 6 is arranged on the inner side wall of the exhaust passage 3, and a streamline part 7 is arranged on the inner side wall of the air inlet passage 4;

a rocker arm mounting hole 5 is formed in the position, close to the rear side, above the cylinder head body 1, and a rocker arm is mounted above the rocker arm mounting hole 5 in a matched mode;

an air filter and a carburetor are fixedly connected below the exhaust passage 3, and an exhaust pipe is fixedly connected below the air inlet passage 4;

a cam is arranged above the cam support 2 in a matched mode, and the outer portion of the cam is designed to be in a fluid structural type;

an intake valve and an exhaust valve are correspondingly arranged on the lower surface of the cylinder head body 1 respectively, and the exhaust valve is arranged on one side of the intake valve.

The implementation mode is specifically as follows: the utility model discloses divide into three optimal design aspect: firstly, optimizing by carrying out fluid dynamic analysis on an exhaust passage 3 and an air inlet passage 4 of a cylinder head according to the structure and the arrangement of an air inlet system and an air outlet system of a whole vehicle; the air intake system of the whole vehicle mainly comprises an air filter and a carburetor, is connected with the air inlet channel of the cylinder head body 1, in order to reduce the resistance of fresh air from the outside to the air cylinder, and through carrying out aerodynamic analysis on the air flow flowing through the air inlet channel, the shape of the air inlet channel 4 is modified, a streamline part 7 is arranged on the inner side wall, the section area of an air passage is increased, sudden change of each section is relieved, the transition fillet radius inside the air inlet channel is increased, when the air rapidly flows through the air inlet channel 4, the resistance is reduced to the minimum, so that the air intake efficiency is optimized, the exhaust system of the whole vehicle mainly comprises an exhaust pipe and a silencer, an exhaust passage 3 is connected with the exhaust pipe, the combusted waste gas passes through the exhaust passage 3 and the exhaust pipe to be discharged into the atmosphere, in order to reduce the resistance of the waste gas discharged from the cylinder, the good flow shape of the exhaust passage 3 is designed, and the inner side wall of the exhaust passage is provided with the inner angle bending part 6, so that sudden change, sharp turn and protruding table of the inner section of the exhaust passage 3 are avoided, the exhaust resistance is reduced to the minimum, and the exhaust efficiency is optimized;

then, according to the combustion characteristic of the engine, the actual condition of the engine, and the structural size of the exhaust passage 3 and the air inlet passage 4, the molded line of the cam mounted on the cam support 2 is optimized, the intake and exhaust phase angles are reasonably selected, and a better inflation effect can be obtained, so that the cam support becomes one of effective means for improving the charge coefficient and the power performance and the emission performance of the engine;

and finally, reasonably optimizing the rocker arm ratio according to the cam profile and the valve lift curve of the engine so as to optimize a valve timing mechanism of the engine, wherein an exhaust valve and an intake valve are respectively and correspondingly arranged on the exhaust passage 3 and the intake passage 4, the cam profile and the rocker arm ratio jointly determine the opening and closing time of the intake valve and the exhaust valve and the valve lift, the valve lift determines the size of the flow cross section of the valve, the larger the valve lift is, the larger the flow cross section of the valve is, but the overlarge valve lift is, and the valve possibly interferes with a piston.

Above three kinds of optimization schemes are through carrying out streamlined optimal design to exhaust passage 3 and intake duct 4 to rational arrangement and the matching between each spare part of engine, thereby have very big effect to the performance promotion of engine, great extension the life of engine, make cylinder head body 1 more smooth in the inside operation of engine, guaranteed the stationarity of motorcycle when riding.

The utility model discloses the theory of operation:

with reference to the attached drawings 1-5 in the specification, by carrying out streamline optimization design on the exhaust passage 3 and the air inlet passage 4 and reasonably arranging and matching the parts of the engine, the circulation resistance of air in the cylinder head body 1 is reduced, and the exhaust efficiency and the air inlet efficiency of the cylinder head body are improved, so that the performance of the engine is greatly improved, the service life of the engine is greatly prolonged, the cylinder head body 1 runs more smoothly in the engine, and the stability of the motorcycle during riding is ensured.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a special high-efficient burning cylinder head of motorcycle, includes cylinder head body (1), its characterized in that: a cam support (2) is integrally formed at a position close to the front side above the cylinder head body (1), an exhaust passage (3) and an air inlet passage (4) are symmetrically arranged at the middle position above the cylinder head body (1), and the air inlet passage (4) is arranged at one side of the exhaust passage (3);

an inner angle bending part (6) is arranged on the inner side wall of the exhaust passage (3), and a streamline part (7) is arranged on the inner side wall of the air inlet passage (4).

2. The high-efficiency combustion cylinder head special for the motorcycle as claimed in claim 1, characterized in that: the cylinder head is characterized in that a rocker arm mounting hole (5) is formed in the position, close to the rear side, above the cylinder head body (1), and a rocker arm is mounted above the rocker arm mounting hole (5) in a matched mode.

3. The high-efficiency combustion cylinder head special for the motorcycle as claimed in claim 1, characterized in that: an air filter and a carburetor are fixedly connected below the exhaust passage (3), and an exhaust pipe is fixedly connected below the air inlet passage (4).

4. The high-efficiency combustion cylinder head special for the motorcycle as claimed in claim 1, characterized in that: the cam is installed above the cam support (2) in an adaptive mode, and the exterior of the cam is designed to be in a fluid structural type.

5. The high-efficiency combustion cylinder head special for the motorcycle as claimed in claim 1, characterized in that: an intake valve and an exhaust valve are correspondingly arranged on the lower surface of the cylinder head body (1) respectively, and the exhaust valve is arranged on one side of the intake valve.