CN217682001U

CN217682001U - Cylinder of high-efficient burning

Info

Publication number: CN217682001U
Application number: CN202221367927.5U
Authority: CN
Inventors: 石向红; 江于才
Original assignee: Zhejiang Huarui Tools Co ltd
Current assignee: Zhejiang Huarui Tools Co ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-10-28
Anticipated expiration: 2032-06-01

Abstract

The utility model belongs to the technical field of the gasoline engine, a cylinder of high-efficient burning is provided, be equipped with the combustion chamber in the cylinder, be equipped with interval distribution's scavenging route in the cylinder, still be equipped with gas vent and air inlet on the cylinder, the cylinder still is equipped with the spark plug, the gas vent of scavenging route and the radial direction contained angle of combustion chamber inner wall are the right angle, and the burning is more abundant, and the oil consumption is lower, when increasing power, can be better reduce the discharge of harmful gas, make fuel economy and exhaust emission value all can improve greatly; by reducing the small cross-sectional area of the exhaust port of the scavenging passage, the fresh gas flows to the combustion chamber efficiently and is away from the exhaust port quickly, and the mixed fresh gas which moves to the exhaust port and is taken away directly is reduced, so that the direct emission of unburned gas is reduced, the fuel utilization rate is improved, and the air pollution is reduced; through the reasonable collocation of the phase sizes of the combustion chamber, the scavenging passage, the exhaust port and the air inlet, the engine has high combustion efficiency, high rotating speed and high power.

Description

Cylinder of high-efficient burning

Technical Field

The utility model belongs to the technical field of the gasoline engine, in particular to cylinder of high-efficient burning.

Background

On the market, high-end two-stroke small-displacement gasoline engines examine four major indicators such as durability, power, emission, fuel economy and the like, although the two-stroke gasoline engines can do work once per rotation, and the power is larger than four-stroke power; however, the scavenging port of the cylinder of the two-stroke gasoline engine in the prior art is closer to the exhaust port and farther from the combustion chamber due to the structural design, so that a part of newly-entered oil-gas mixture is directly carried out of the exhaust port of the cylinder by high-speed and high-pressure combustion waste gas each time, thereby not only leading part of fuel oil to be lost and reducing the power of the engine, but also leading unburned harmful gas components in the waste gas to be very high and polluting the air and being harmful to human bodies. The existing conventional scavenging elevation angle is about 5 degrees to 20 degrees, the scavenging passage elevation angle is small, the scavenging passage elevation angle faces to the exhaust port of the cylinder, and fresh gas is easy to lose from the exhaust port of the cylinder.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a following technical scheme:

the utility model provides a cylinder of high-efficient burning, be equipped with the combustion chamber in the cylinder, still be equipped with gas vent and air inlet on the cylinder, the cylinder still is equipped with the spark plug hole, be equipped with interval distribution's scavenging route in the cylinder, scavenging route's gas outlet with the radial direction contained angle of combustion chamber inner wall is the right angle, and the burning is more abundant, and the oil consumption is lower, in the time of the increase power, can better reduction harmful gas's discharge, makes fuel economy and exhaust emission value all can improve greatly.

Furthermore, the width of exhaust port is 24.4mm, the size of exhaust port among this technical scheme is littleer than the exhaust port among the prior art, through reducing the little cross-sectional area of exhaust port, when the pressure of piston downstream drive scavenging is unchangeable, when scavenging flow also is unchangeable basically, the velocity of flow of fresh gas to the combustion chamber of this exhaust port department can increase, make fresh gas keep away from the exhaust port fast, the part that is taken away directly to exhaust port department removal just further reduces, thereby reduce unburned gaseous emission, improve the fuel utilization ratio, reduce air pollution.

Further, the depth of the combustion chamber is 58.5mm.

Further, an included angle between the air inlet and the radial direction of the spark plug hole is 25 degrees.

Further, the width of the air inlet is 24.7mm.

Further, the distance from the tail end of the air inlet to the cylinder mounting surface is 9mm, and the error is within the range of 0.1 mm.

Further, an included angle between the exhaust port and the radial direction of the spark plug hole is 12 degrees.

Further, the depth of the scavenging passage is 32.4mm, and the error is within the range of 0.05 mm.

Furthermore, the distance from the top end of the exhaust port to the cylinder mounting surface is 37mm, and the error is within the range of 0.1 mm.

Furthermore, the included angle between the spark plug hole and the radial direction is 13 degrees, so that the engine can burn fully, and the power is higher.

Furthermore, the spark plug hole is connected with a hemispherical cavity, and an arc-shaped connecting surface is arranged between the hemispherical cavity and the combustion chamber.

Furthermore, the scavenging passages are in a door opening shape, and the scavenging passages are uniformly distributed around the lower half part of the combustion chamber; the position of the air outlet of the scavenging passage is higher than the position of the air inlet.

Further, the opening of the exhaust port is directed downward relative to the combustion chamber, and the opening of the intake port is directed upward relative to the combustion chamber.

Preferably, the top of the cylinder is provided with a large-area blade, so that heat dissipation of the cylinder is facilitated.

The utility model discloses following beneficial effect has:

(1) The included angle between the gas outlet of the scavenging passage and the radial direction of the inner wall of the combustion chamber is a right angle, so that the combustion is more sufficient, the oil consumption is lower, the discharge of harmful gas can be better reduced while the power is increased, and the fuel economy and the tail gas emission value can be greatly improved;

(2) The utility model has the advantages that the small cross-sectional area of the exhaust port is reduced, so that the fresh gas flows to the combustion chamber efficiently, the exhaust port is kept away quickly, and the mixed fresh gas which is moved to the exhaust port and is taken away directly is reduced, thereby reducing the direct emission of unburned gas, improving the utilization rate of fuel oil and reducing air pollution;

(3) The utility model discloses a reasonable collocation of the phase place size of combustion chamber, scavenging way, gas vent and air inlet makes the high-efficient, the rotational speed of burning that the engine becomes high and power is high.

Drawings

Fig. 1 is a cross-sectional view of the present invention.

Fig. 2 is a cross-sectional view taken along direction a in fig. 1.

Fig. 3 is a schematic top view of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, and it should be noted that the embodiments are only specific illustrations of the present invention, and should not be considered as limitations of the present invention, and the purpose of the embodiments is to make those skilled in the art better understand and reproduce the technical solutions of the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims.

It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1-3, at least one embodiment of the present disclosure provides a cylinder with high combustion efficiency, a combustion chamber 1 is arranged in the cylinder, an exhaust port 3 and an air inlet 4 are further arranged on the cylinder, the cylinder is further provided with a spark plug hole 5, scavenging ducts 2 are arranged in the cylinder and distributed at intervals, an included angle between an air outlet 21 of the scavenging duct and a radial direction of an inner wall of the combustion chamber is a right angle, combustion is more sufficient, oil consumption is lower, power is increased, and meanwhile, discharge of harmful gas can be better reduced, so that fuel economy and a tail gas emission value can be greatly improved.

In some preferred schemes, the width of the exhaust port 3 is 24.4mm, in this technical scheme, the size of the exhaust port 3 is smaller than that of the exhaust port in the prior art, by reducing the small cross-sectional area of the exhaust port 3, when the pressure of scavenging driven by the piston moving downwards is not changed, and the scavenging flow is also basically not changed, the flow rate of the fresh gas at the exhaust port of the scavenging passage to the combustion chamber 1 can be increased, so that the fresh gas is quickly far away from the exhaust port 3, and the part which is directly taken away by moving to the exhaust port 3 is further reduced, thereby reducing the emission of unburned gas, improving the fuel utilization rate, and reducing air pollution.

In some preferred embodiments, the depth of the combustion chamber 1 is 58.5mm.

In some preferred embodiments, the angle between the intake port 4 and the radial direction of the spark plug hole 5 is 25 degrees.

In some preferred embodiments, the width of the air inlet 4 is 24.7mm.

In some preferred schemes, the distance from the end of the air inlet 4 to the cylinder mounting surface is 9mm, and the error is in the range of 0.1 mm.

In some preferred embodiments, the angle between the exhaust port 3 and the radial direction of the spark plug hole 5 is 12 degrees.

In some preferred solutions, the depth of the scavenging duct 2 is 32.4mm, with a tolerance in the range of 0.05 mm.

In some preferred schemes, the distance from the top end of the exhaust port 3 to the cylinder mounting surface is 37mm, and the error is in the range of 0.1 mm.

In some preferred schemes, the included angle between the spark plug hole 5 and the radial direction is 13 degrees, so that the engine can be fully combusted, and the power is higher.

In some preferred schemes, the spark plug hole 5 is connected with a hemispherical cavity 51, and an arc-shaped connecting surface 52 is arranged between the hemispherical cavity 51 and the combustion chamber 1.

In some preferred schemes, the scavenging duct 2 is in a door opening shape, and the scavenging ducts 2 are uniformly distributed around the lower half part of the combustion chamber 1; the outlet 21 of the scavenging path is located at a higher position than the inlet 4.

Further, the opening of the exhaust port 3 is directed downward with respect to the combustion chamber 1, and the opening of the intake port 4 is directed upward with respect to the combustion chamber 1.

In some preferred schemes, the top of the cylinder is provided with a large-area blade 6, which is beneficial to heat dissipation of the cylinder.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

Claims

1. The utility model provides a cylinder of high-efficient burning, be equipped with the combustion chamber in the cylinder, still be equipped with gas vent and air inlet on the cylinder, the cylinder still is equipped with the spark plug hole, its characterized in that, be equipped with interval distribution's scavenging route in the cylinder, scavenging route's gas outlet with the radial direction contained angle of combustion chamber inner wall is the right angle.

2. A high efficiency combustion cylinder as claimed in claim 1, wherein the width of the exhaust port is 24.4mm.

3. A high efficiency combustion cylinder as claimed in claim 1 wherein the depth of the combustion chamber is 58.5mm.

4. A cylinder with high combustion efficiency as set forth in claim 1 wherein the distance from the end of said intake port to the cylinder mounting surface is 9mm with a tolerance in the range of 0.1 mm.

5. A combustion-efficient cylinder as claimed in claim 4, wherein the depth of the scavenging path is 32.4mm with a tolerance in the range of 0.05 mm.

6. A high efficiency combustion cylinder as set forth in claim 1 wherein said exhaust port has a top end spaced 37mm from the cylinder mounting surface with a tolerance of 0.1 mm.

7. A combustion-efficient cylinder as set forth in claim 1 wherein said spark plug hole is angled 13 degrees from a radial direction.

8. A combustion-efficient cylinder as in claim 7, wherein said spark plug hole is connected to a hemispherical cavity, and an arcuate connecting surface is provided between said hemispherical cavity and said combustion chamber.

9. The cylinder of claim 1, wherein the scavenging passage is in the shape of a door opening, the scavenging passages are uniformly distributed around the lower half part of the combustion chamber, and the outlet of the scavenging passage is higher than the inlet.

10. A combustion-efficient cylinder as set forth in claim 1 wherein said exhaust port opens downwardly relative to said combustion chamber and said intake port opens upwardly relative to said combustion chamber.