CN219139206U

CN219139206U - Cylinder cover with air inlet channel cooling water channel, engine and automobile

Info

Publication number: CN219139206U
Application number: CN202320089222.XU
Authority: CN
Inventors: 邱阳; 高兴华; 邓伟; 何海珠; 成卫国
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2023-01-31
Filing date: 2023-01-31
Publication date: 2023-06-06
Anticipated expiration: 2033-01-31

Abstract

The utility model belongs to the technical field of automobile engines, and particularly relates to a cylinder head with an air inlet channel cooling water channel. The purpose is that: the problem of current cylinder head structural defect lead to with high costs, the reliability is poor, and under the hot engine state, the effect is limited is solved.

Description

Cylinder cover with air inlet channel cooling water channel, engine and automobile

Technical Field

The utility model belongs to the technical field of automobile engines, and particularly relates to a cylinder cover with an air inlet channel cooling water channel, an engine and an automobile.

Background

In recent years, with the application of the fuel-saving technology of the engine (such as miller cycle) and the popularization of the supercharger type of the gasoline engine, the control of the intake air temperature of the engine is more and more paid attention to by engine designers, such as the scheme described in the utility model patent of air inlet channel cooling and heat insulation structure (application number is 201720030893.3) filed by Toyota corporation in 2017: the outer side of the lower wall of the air inlet on the cylinder cover is provided with a heat insulation layer, and the outer side of the upper wall of the downstream part of the air inlet is provided with a cooling liquid channel to realize the purposes of reducing the heating of the air inlet of the cylinder cover to the gas flowing through the air inlet and controlling the air inlet temperature.

The scheme is characterized in that a heat insulation layer is arranged on the outer side of the lower wall of the air inlet channel, the heat insulation area is limited, the manufacturing difficulty is high, the equipment investment is high, a coating material is easy to fall off, and the like.

That is, there are problems of high cost, poor reliability, and limited effect in the thermo-mechanical state.

Disclosure of Invention

The purpose of the utility model is that: the cylinder cover with the air inlet channel cooling water channel is used for solving the problems of high cost, poor reliability and limited effect in a heat engine state caused by the structural defect of the existing cylinder cover.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

a cylinder cover with an air inlet channel cooling water channel comprises a cylinder cover body,

an air inlet channel is arranged on the cylinder cover body,

the cylinder cover body is also provided with a cooling liquid channel at the upper layer of the combustion chamber and a cooling liquid channel at the lower layer of the combustion chamber,

an air inlet channel cooling liquid channel is arranged on the outer side of the air inlet channel of the cylinder cover body,

and connecting pipes are arranged at two ends of the cooling liquid channel of the air inlet channel on the cylinder cover body.

Further defined, a plurality of intake passage coolant passages outside the intake passage are in communication with each other. By means of the structural design, through the mutual communication of the plurality of air inlet channel cooling liquid channels, only two connecting pipes are needed to be arranged on the cylinder cover body, and then the two connecting pipes are respectively connected with the water inlet and the water outlet of the cooling mechanism, so that the number of the connecting pipes is reduced, and the installation is more convenient.

Further defined, the wall thickness dimension between the inlet and the inlet coolant passage is 3mm-6mm.

Further defined, the connecting tube is press-fit over the cylinder head body with interference.

Further defined, the connecting tube is threadedly coupled to the cylinder head body.

An engine comprises a circulating cooling mechanism for circulating cooling liquid and the cylinder cover with the air inlet channel and the cooling water channel, wherein a liquid inlet and a liquid outlet of the circulating cooling mechanism are respectively communicated with a connecting pipe.

An automobile comprising an engine as described above.

The utility model adopting the technical scheme has the following advantages:

1. on the basis of realizing cooling of the cylinder head body, the cylinder head body is provided with an upper layer cooling liquid channel of a combustion chamber and a lower layer cooling liquid channel of the combustion chamber, and the air inlet channel cooling liquid channel which covers the air inlet channel is independently arranged on the cylinder head body, so that the cooling liquid in the air inlet channel cooling liquid channel cools fresh air passing through the air inlet channel, the quality of the fresh air entering the combustion chamber is improved, and the combustion performance inside an engine is improved;

2. the manufacturing process of designing the cooling liquid channel around the air inlet channel of the cylinder cover is consistent with that of the traditional cylinder cover, no special requirements are met, a new process technology is applied, the manufacturing is simple, the cost is low, and the reliability is good;

3. the air inlet channel cooling liquid channel is communicated with an independent circulating cooling mechanism for circulating cooling the cooling liquid, and the effect is better in a heat engine state.

Drawings

The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic diagram of a cylinder head, engine and vehicle embodiment with an inlet port cooling water passage according to the present utility model;

FIG. 2 is a schematic cross-sectional view of the structure at A-A in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the structure at B-B in FIG. 1;

FIG. 4 is a schematic diagram of the structure of the upper layer cooling fluid passage and the intake cooling fluid passage of the combustion chamber in the embodiments of the cylinder head with the intake cooling fluid passage, the engine and the automobile according to the present utility model.

The main reference numerals are as follows:

a cylinder head body 1,

An upper layer cooling liquid channel 11 of the combustion chamber, a lower layer cooling liquid channel 12 of the combustion chamber, an air inlet channel cooling liquid channel 13,

Inlet 14, inlet gas inlet 141, inlet gas outlet 142, combustion chamber 15,

And a connecting pipe 2.

Detailed Description

The present utility model will be described in detail below with reference to the drawings and the specific embodiments, wherein like or similar parts are designated by the same reference numerals throughout the drawings or the description, and implementations not shown or described in the drawings are in a form well known to those of ordinary skill in the art. In addition, directional terms such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", etc. in the embodiments are merely directions with reference to the drawings, and are not intended to limit the scope of the present utility model.

As shown in fig. 1 to 4, the cylinder head with an intake duct cooling water passage of the present utility model includes a cylinder head body 1,

the cylinder head body 1 is provided with an air inlet channel 14,

the cylinder head body 1 is also provided with a combustion chamber upper layer cooling liquid channel 11 and a combustion chamber lower layer cooling liquid channel 12,

the cylinder head body 1 is provided with an inlet channel cooling liquid channel 13 at the outer side of the inlet channel 14,

the intake passage coolant passages 13 outside the plurality of intake passages 14 communicate with each other,

the wall thickness dimension between the inlet channel 14 and the inlet channel coolant channel 13 is 3mm-6mm,

the cylinder head body 1 is provided with connecting pipes 2 at two ends of an inlet channel cooling liquid channel 13,

the connecting pipe 2 is in interference press fit/threaded connection on the cylinder head body 1.

An engine comprises a circulating cooling mechanism for circulating cooling liquid and a cylinder cover with an air inlet channel and a cooling water channel, wherein a liquid inlet and a liquid outlet of the circulating cooling mechanism are respectively communicated with a connecting pipe 2.

An automobile comprising an engine as described above.

In this embodiment, when the engine is in operation, fresh air enters the air inlet 14 through the air inlet gas inlet 141, the temperature of the fresh air is higher than the temperature of the cooling liquid in the cooling liquid channel 13 of the air inlet during the fresh air passing through the air inlet 14, the heat of the fresh air is transferred to the cooling liquid flowing in the cooling liquid channel 13 of the air inlet through the metal wall surface of the air inlet 14, and the heat is taken away by the cooling liquid, so that the temperature of the fresh air is reduced when the fresh air flows through the air inlet 14, and the fresh air with reduced temperature enters the combustion chamber 15 through the air outlet 142 of the air inlet.

The cylinder cover with the air inlet channel cooling water channel, the engine and the automobile provided by the utility model are described in detail. The description of the specific embodiments is only intended to aid in understanding the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. A cylinder head with an air inlet channel cooling water channel comprises a cylinder head body (1),

an air inlet channel (14) is arranged on the cylinder cover body (1),

the cylinder head body (1) is also provided with a combustion chamber upper layer cooling liquid channel (11) and a combustion chamber lower layer cooling liquid channel (12),

the method is characterized in that: an air inlet channel cooling liquid channel (13) is arranged on the outer side of the air inlet channel (14) of the cylinder cover body (1),

connecting pipes (2) are arranged at two ends of the air inlet channel cooling liquid channel (13) on the cylinder cover body (1).

2. A cylinder head with an inlet port cooling water passage as defined in claim 1, wherein: the inlet channel cooling liquid channels (13) outside the inlet channels (14) are mutually communicated.

3. A cylinder head with an inlet port cooling water passage as defined in claim 1, wherein: the wall thickness between the air inlet channel (14) and the air inlet channel cooling liquid channel (13) is 3mm-6mm.

4. A cylinder head with an inlet port cooling water passage as defined in claim 1, wherein: the connecting pipe (2) is pressed on the cylinder cover body (1) in an interference mode.

5. A cylinder head with an inlet port cooling water passage as defined in claim 1, wherein: the connecting pipe (2) is connected to the cylinder cover body (1) in a threaded mode.

6. An engine, characterized in that: a circulation cooling mechanism for circulating cooling liquid and a cylinder head with an air inlet channel and a cooling water channel according to any one of claims 1-5, wherein a liquid inlet and a liquid outlet of the circulation cooling mechanism are respectively communicated with a connecting pipe (2).

7. An automobile, characterized in that: an engine comprising the engine of claim 6.