CN219452240U - Engine cooling structure and generator set - Google Patents

Abstract

The utility model provides an engine cooling structure which comprises a shell and an engine body, wherein a first cavity, a second cavity and a third cavity which are sequentially communicated are arranged in the shell, and the engine body is arranged in the second cavity. The engine body is internally provided with a first air duct and an exhaust cavity which are arranged in an upper-lower structure, the upper end of the first air duct is communicated with the second cavity, the lower end of the first air duct is communicated with the exhaust cavity, and the exhaust cavity is arranged towards one end of the third cavity in an open mode. According to the engine cooling structure, the first air duct and the exhaust cavity are formed in the engine body, and cooling air flows through the first air duct and the exhaust cavity to take away heat on one side of the cylinder barrel of the engine body, so that the cooling effect on the cylinder barrel of the engine body is improved, and the heat dissipation capacity of the engine body is enhanced. The utility model also provides a generator set, and by using the engine cooling structure, the dynamic property and economical efficiency of the whole machine operation are improved.

Description

Engine cooling structure and generator set

Technical Field

The utility model relates to the technical field of engines, in particular to an engine cooling structure and a generator set.

Background

The generator set is mechanical equipment for converting mechanical energy into electric energy, and has wide application in industrial and agricultural production and daily life. One of the most important parts in the generator set is an engine, and the engine is internally provided with a combustion chamber, an air inlet channel, an exhaust channel and other main structures, mixed fuel gas enters the combustion chamber from the air inlet channel, and is discharged from the exhaust channel after being burnt to do work, so that the engine continuously outputs power.

When the engine drives the generator to work, the impeller rotates at a high speed to suck outside air into the shell of the generator set and form cooling air flow, and after the cooling air flow blows to the engine, heat of the cylinder head and the cylinder body can be taken away, so that the engine is cooled. The cylinder barrel of the existing engine cylinder body can only dissipate heat through the radiating fins on the outer wall, meanwhile, the tappet cavity and the cylinder barrel are of an integrated structure, and other cooling channels are not designed between the cylinder barrel and the tappet cavity, so that the heat dissipation effect of the cylinder body is not ideal.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide an engine cooling structure and a generator set so as to improve the cooling effect on a cylinder barrel and enhance the heat dissipation capacity of an engine body.

In order to achieve the above object, one of the objects of the present utility model provides an engine cooling structure comprising a housing provided with a first chamber, a second chamber and a third chamber which are communicated in sequence; and the engine body is arranged in the second cavity, a first air duct and an exhaust cavity which are arranged in an upper-lower structure are arranged in the engine body, the first air duct extends towards one side of a crankcase of the engine body, the upper end of the first air duct is communicated with the second cavity, the lower end of the first air duct is communicated with the exhaust cavity, and the exhaust cavity is arranged towards one end of the third cavity in an open mode.

Preferably, the exhaust chamber penetrates through the engine body in a direction from the first chamber toward the third chamber.

Preferably, the exhaust chamber is provided with a wind shielding part near the bottom of the first chamber, and the wind shielding part extends towards the side away from the crankcase of the engine body.

Preferably, the engine body is provided with a second air duct, the second air duct penetrates through the engine body along the direction from the first chamber to the third chamber, and the second air duct is located above the first air duct and is communicated with the first air duct.

Preferably, a first air guiding part is arranged on the inner side wall of the first chamber, and the first air guiding part is close to the second air duct.

Preferably, the engine body is provided with an installation space, and the installation space is communicated with the second air duct and is arranged in a back-to-back mode.

Preferably, a third air duct is formed between one side of the engine body, which is away from the exhaust cavity, and the inner wall of the second cavity, and the third air duct is respectively communicated with the first cavity and the third cavity.

Preferably, a fourth air duct is formed between the engine body and the inner wall of the second chamber, the fourth air duct is located below the engine body, and the fourth air duct is respectively communicated with the first chamber and the third chamber.

Preferably, the inner side wall of the first chamber is provided with a second air guiding part, and the second air guiding part is close to the fourth air duct.

Another object of the present utility model is to provide a generator set, which includes the above engine cooling structure.

The utility model has the beneficial effects that:

the utility model discloses an engine cooling structure, which is characterized in that a first air duct and an exhaust cavity are formed in an engine body, and cooling air flow can take away heat at one side of a cylinder barrel of the engine body in the process of flowing through the first air duct and the exhaust cavity, so that the cooling effect of the cylinder barrel of the engine body is improved, the heat dissipation capacity of the engine body is enhanced, the working environment of the engine body is improved, and the output power of the engine body in a high-temperature environment is improved.

The utility model also discloses a generator set, and by using the engine cooling structure, the dynamic property and economical efficiency of the whole machine operation are improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.

FIG. 1 is a schematic cross-sectional view of an engine cooling structure according to an embodiment of the present utility model;

FIG. 2 is a side view of the engine block on a side adjacent to the first chamber;

FIG. 3 is a partial schematic view of section A-A of FIG. 2;

FIG. 4 is a schematic structural view of a first air duct and a second air duct;

FIG. 5 is a schematic view of the structure of the exhaust chamber near the third chamber;

FIG. 6 is a schematic structural view of a third air duct and a fourth air duct;

FIG. 7 is a schematic structural view of a first air guiding portion and a second air guiding portion;

reference numerals:

10-a housing, 11-a first chamber, 12-a second chamber, 13-a third chamber;

20-an engine body, 21-a first air duct, 22-an exhaust cavity, 23-a wind shielding part, 24-a second air duct and 25-an installation space;

31-a first air guide part, 32-a second air guide part;

41-third air duct, 42-fourth air duct;

50-spark plug.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Example 1

As shown in fig. 1 to 7, in an embodiment of the present utility model, there is provided an engine cooling structure comprising a housing 10 and an engine body 20, wherein a first chamber 11, a second chamber 12 and a third chamber 13 are provided in the housing 10 in communication in this order, a generator body (not shown in the drawings) is installed in the first chamber 11, the engine body 20 is installed in the second chamber 12, and a muffler body (not shown in the drawings) is installed in the third chamber 13. A first air duct 21 and an air exhaust cavity 22 which are arranged in an upper-lower structure are arranged in the engine body 20, the first air duct 21 extends towards one side of a crank case of the engine body 20, the upper end of the first air duct 21 is communicated with the second cavity 12, the lower end of the first air duct 21 is communicated with the air exhaust cavity 22, and the air exhaust cavity 22 is arranged in an open mode towards one end of the third cavity 13.

When the engine body 20 drives the generator body to operate, the impeller on the generator body rotates at a high speed to form negative pressure in the first chamber 11, and the external air is sucked into the first chamber 11 to form cooling air flow, so that the generator body in the first chamber 11 is cooled first by the cooling air flow. Then, the cooling air flows to the second chamber 12, and the cooling air cools the engine body 20, thereby achieving the purpose of cooling the engine body 20.

In the process, part of the cooling air flow enters the first air duct 21, flows into the exhaust cavity 22 from the direction toward the crankcase of the engine body 20, and finally flows out of the exhaust cavity 22 and blows toward the muffler body in the third chamber 13. The cooling air flow takes away heat at one side of the cylinder of the engine body in the process of flowing through the first air duct 21, so that the cooling and heat dissipation effects on the engine body 20 are improved.

After the air flow for cooling the engine body 20 blows to the third chamber 13, the muffler body in the third chamber 13 is cooled, and finally discharged from the third chamber 13, so that the cooling of the generator body, the engine body 20 and the muffler body is realized.

According to the engine cooling structure disclosed by the embodiment, the first air duct 21 and the exhaust cavity 22 are formed in the engine body 20, and cooling air flows can take away heat on one side of the cylinder barrel of the engine body 20 in the process of flowing through the first air duct 21 and the exhaust cavity 22, so that the cooling effect on the cylinder barrel of the engine body 20 is improved, the heat radiation capability of the engine body 20 is enhanced, the working environment of the engine body 20 is improved, the output power of the engine body 20 in a high-temperature environment is improved, and the power performance and the economical efficiency of the whole engine are improved.

In one embodiment, the exhaust chamber 22 penetrates the engine block 20 in the direction of the first chamber 11 toward the third chamber 13. After the cooling air flow blows to the second chamber 12, a part of the air flow directly blows to the exhaust chamber 22, and the cooling air flow takes away part of heat of the cylinder barrel of the engine body 20 in the flowing process and directly blows to the muffler body in the third chamber 13 through the exhaust chamber 22, so that the cooling effect on one side of the cylinder barrel is improved.

In one embodiment, the exhaust chamber 22 is provided with a wind shielding portion 23 near the bottom of the first chamber 11, the wind shielding portion 23 extending toward the crankcase side facing away from the engine body 20. Since the top of the wind shielding portion 23 is higher than the bottom of the air exhausting cavity 22, the wind pressure on the bottom of the air exhausting cavity 22 (on the side close to the third cavity 13) is smaller than the wind pressure on the wind shielding portion 23, so that the air flow blown out from the first air duct 21 is directly blown to the opening of the air exhausting cavity 22 close to the third cavity 13, and finally is discharged out of the air exhausting cavity 22 and blown to the muffler body, thereby realizing cooling of the muffler body. Therefore, the design of the wind shielding part 23 facilitates guiding the air flow blown out from the hole of the first air duct 21, thereby reducing the loss of the air flow flowing into the air exhaust cavity 22 and improving the heat dissipation effect to the cylinder.

In one embodiment, the engine body 20 is provided with a second air duct 24, the second air duct 24 penetrates the engine body 20 along the direction from the first chamber 11 toward the third chamber 13, and the second air duct 24 is located above the first air duct 21 and is communicated with the first air duct 21. The engine body 20 is provided with an installation space 25, and the installation space 25 is communicated with the second air duct 24 and is arranged in a back-to-back manner.

Specifically, the second air duct 24 and the installation space 25 are both formed on the cylinder head of the engine body 20, after the cooling air flow enters the second air duct 24, the cylinder head of the engine body 20 is cooled, part of the air flow takes away the heat of the cylinder head and blows the heat to the third chamber 13 through the second air duct 24, and part of the air flow enters the first air duct 21, so that the cooling of the cylinder barrel is realized.

The spark plug 50 is installed in the installation space 25, and the air flow in the installation space 25 and the air flow in the second air duct 24 can circulate with each other by designing the installation space 25 and the second air duct 24 to be in a communication structure, thereby improving the cooling effect on the cylinder head.

In one embodiment, the inner side wall of the first chamber 11 is provided with a first air guiding portion 31, and the first air guiding portion 31 is close to the second air duct 24. The cooling air flow generated by the high-speed rotation of the impeller on the generator body flows on the inner wall of the first chamber 11, and the cooling air flow can be directly guided to the second air duct 24 under the guiding effect of the first air guiding part 31, so that the cooling effect on the cylinder head and the cylinder barrel of the engine body 20 is improved.

In one embodiment, to further improve the cooling effect on the engine body 20, a third air duct 41 is formed between the side of the engine body 20 facing away from the exhaust chamber 22 and the inner wall of the second chamber 12, and the third air duct 41 communicates with the first chamber 11 and the third chamber 13, respectively.

In one embodiment, a fourth air duct 42 is formed between the engine body 20 and the inner wall of the second chamber 12, the fourth air duct 42 is located below the engine body 20, and the fourth air duct 42 is respectively communicated with the first chamber 11 and the third chamber 13. The cooling air flow cools the bottom of the crankcase of the engine body 20 while flowing through the fourth air duct 42, thereby enhancing the heat dissipation effect on the engine body 20.

In one embodiment, the inner side wall of the first chamber 11 is provided with a second air guiding portion 32, and the second air guiding portion 32 is close to the fourth air duct 42. The cooling air flow in the first chamber 11 directly guides the cooling air flow to the fourth air duct 42 under the guiding effect of the second air guiding portion 32, so that the cooling effect on the crankcase of the engine body 20 is improved.

Example two

In an embodiment of the present utility model, an electric generating set is provided, which includes the engine cooling structure in the first embodiment, by using the engine cooling structure, the heat dissipation capability of the engine body 20 is enhanced, the working environment of the engine body 20 is improved, the output power of the engine body 20 in a high-temperature environment is increased, and further the power performance and the economy of the whole machine operation are improved.

In the description of the present utility model, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.

Claims (10)

1. An engine cooling structure, characterized by comprising:

the shell is provided with a first chamber, a second chamber and a third chamber which are communicated in sequence; and

the engine body is arranged in the second cavity, a first air duct and an exhaust cavity which are arranged in an upper structure and a lower structure are arranged in the engine body, the first air duct extends towards one side of a crankcase of the engine body, the upper end of the first air duct is communicated with the second cavity, the lower end of the first air duct is communicated with the exhaust cavity, and the exhaust cavity faces one end of the third cavity and is arranged in an open mode.

2. The engine cooling structure according to claim 1, characterized in that the exhaust chamber penetrates the engine body in a direction of the first chamber toward the third chamber.

3. The engine cooling structure according to claim 2, wherein the exhaust chamber is provided with a wind shielding portion near a bottom of the first chamber, the wind shielding portion extending toward a side facing away from the crankcase of the engine body.

4. The engine cooling structure according to claim 1, wherein the engine body is provided with a second air duct penetrating the engine body in a direction from the first chamber toward the third chamber, the second air duct being located above the first air duct and communicating with the first air duct.

5. The engine cooling structure of claim 4, wherein an inner side wall of the first chamber is provided with a first air guiding portion, and the first air guiding portion is adjacent to the second air duct.

6. The engine cooling structure according to claim 4, wherein the engine body is provided with an installation space that communicates with the second air duct and is disposed opposite to the second air duct.

7. The engine cooling structure according to claim 1, wherein a third air duct is formed between a side of the engine body facing away from the exhaust chamber and an inner wall of the second chamber, and the third air duct communicates with the first chamber and the third chamber, respectively.

8. The engine cooling structure according to claim 1, wherein a fourth air duct is formed between the engine body and an inner wall of the second chamber, the fourth air duct being located below the engine body, the fourth air duct communicating with the first chamber and the third chamber, respectively.

9. The engine cooling structure of claim 8, wherein an inner side wall of the first chamber is provided with a second air guiding portion, the second air guiding portion being adjacent to the fourth air duct.

10. A generator set comprising the engine cooling structure of any one of claims 1-9.