CN209458038U - Engine cylinder cap - Google Patents
Engine cylinder cap Download PDFInfo
- Publication number
- CN209458038U CN209458038U CN201920203469.3U CN201920203469U CN209458038U CN 209458038 U CN209458038 U CN 209458038U CN 201920203469 U CN201920203469 U CN 201920203469U CN 209458038 U CN209458038 U CN 209458038U
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- China
- Prior art keywords
- cylinder cap
- engine cylinder
- mosaics
- exhaust duct
- engine
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of engine cylinder caps.The engine cylinder cap has air intake duct and exhaust duct, and the exhaust duct is two, is separated by next door, for the high-temperature gas discharge after combustion chambers burn is done work；The next door uses steel mosaics using casting, mosaics is inlayed.The engine cylinder cap, and can be according to the different ingredients for adjusting steel of row's temperature, to greatly improve the Thermal fatigue properties of cylinder cap by inlaying casting using steel mosaics in the highest two exhaust duct middle positions of thermal stress.
Description
Technical field
The utility model is about engine art, especially with regard to a kind of engine cylinder cap.
Background technique
Current international engine (including diesel engine, gasoline engine and other kinds of internal combustion engine) is all improving its power
Density, with the raising of engine power density, row's temperature of engine is higher and higher, and even up to 800 DEG C or more, when row's temperature increases
After height, exhaust duct of cylinder cover position is easy to happen crack fault, and the way of industry universal is shape at change exhaust duct, energy at present
Enough improve the Thermal fatigue properties of cylinder cap, but increase rate is limited, with the further promotion of power density, arrange temperature into one
Step increases, and still can generally crack at 750 DEG C or more in two exhaust outlet middle positions, i.e., simply changes doing for shape
Method can not solve the problems, such as that cylinder cap is split.
The information disclosed in the background technology section is intended only to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing
Technology.
Utility model content
The purpose of this utility model is to provide a kind of simple and reasonable engine cylinder cap, the engine cylinder caps
By inlaying casting using steel mosaics in the highest two exhaust duct middle positions of thermal stress, to greatly improve cylinder
The Thermal fatigue properties of lid.
To achieve the above object, the utility model provides a kind of engine cylinder cap, the engine cylinder cap have into
Air flue and exhaust duct, the exhaust duct are two, are separated by next door, for the high-temperature gas row after combustion chambers burn is done work
Out；The next door uses steel mosaics using casting, mosaics is inlayed.
In a preferred embodiment, engine cylinder cap is body structure.
In a preferred embodiment, engine cylinder cap is mounted in cylinder block.
Compared with prior art, engine cylinder cap according to the present utility model has the following beneficial effects: the engine
Cylinder head, and can root by inlaying casting using steel mosaics in thermal stress highest two exhaust duct middle positions
According to the ingredient of the different adjustment steel of row's temperature, to greatly improve the Thermal fatigue properties of cylinder cap.
Detailed description of the invention
Fig. 1 is the structural schematic diagram according to the engine cylinder cap of the utility model first embodiment.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
According to a key as conventional internal combustion for the engine cylinder cap of the preferred embodiment in the utility model
Components and cylinder block, cylinder jacket form the basic framework of engine together.Engine cylinder cap is installed on cylinder block, hair
Motivation cylinder jacket is installed in the cylinder-bore of cylinder block, the combustion chamber of cylinder head and piston, cylinder jacket composition engine, piston
It is reciprocating in cylinder jacket.Valve actuating mechanism and the cover are installed above cylinder head.
As shown in Figure 1, engine cylinder cap 1 is a body structure, cabinet is interior by air flue, valve mounting struction, cylinder head
Bolt hole pillar, oilhole pillar, stomata pillar and these structure peripheries water jacket cavity composition, structure is complicated, and casting is difficult.Hair
Water jacket cavity is full of coolant liquid when motivation works, and coolant liquid enters block jacket and cooled down to cylinder jacket and take away engine
The waste heat generated when acting；Then coolant liquid enters cylinder head in the upper water hole in water hole and cylinder head by head gasket
Necessary cooling is carried out to the positions such as ridge area, valve and valve retainer, cylinder head bottom plate in water jacket.
The air flue of engine cylinder cap 1 includes: air intake duct and exhaust duct 2, wherein exhaust duct 2 is two, passes through next door 3
It separates, for the high-temperature gas discharge after combustion chambers burn is done work.With the raising of engine power density, the row of engine
Temperature is higher and higher, and even up to 800 DEG C or more, after row's temperature increases, the position in next door 3 is easy to happen crack fault.
Preferably, before casting, metal or non-metal workpiece are placed in casting mold, then pours using casting is inlayed for next door 3
Enter molten metal, after cooled and solidified, these parts are just closely embedded in be poured metal casting, become an entirety,
This process is known as inlaying casting, referred to as castingin.Resulting casting can be described as inlaying casting, and the part being panelized is known as
Mosaics.Next door 3 is to inlay casting, and mosaics uses steel mosaics.
Steel mosaics can be according to the ingredient of the different adjustment steel of row's temperature, to greatly improve the thermal fatigue resistance energy of cylinder cap
Power.
To sum up, the engine cylinder cap in the highest two exhaust duct middle positions of thermal stress using steel by being inlayed
Body inlays casting, and can be according to the ingredient of the different adjustment steel of row's temperature, to greatly improve the Thermal fatigue properties of cylinder cap.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (3)
1. a kind of engine cylinder cap, which is characterized in that the engine cylinder cap has air intake duct and exhaust duct, the exhaust duct
It is two, is separated by next door, for the high-temperature gas discharge after combustion chambers burn is done work；The next door, which uses, inlays casting
It makes, mosaics uses steel mosaics.
2. engine cylinder cap as described in claim 1, which is characterized in that the engine cylinder cap is body structure.
3. engine cylinder cap as claimed in claim 2, which is characterized in that the engine cylinder cap is mounted on cylinder block
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920203469.3U CN209458038U (en) | 2019-02-15 | 2019-02-15 | Engine cylinder cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920203469.3U CN209458038U (en) | 2019-02-15 | 2019-02-15 | Engine cylinder cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209458038U true CN209458038U (en) | 2019-10-01 |
Family
ID=68046665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920203469.3U Active CN209458038U (en) | 2019-02-15 | 2019-02-15 | Engine cylinder cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209458038U (en) |
-
2019
- 2019-02-15 CN CN201920203469.3U patent/CN209458038U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230113 Address after: No.88 Tianqiao West Road, Yulin City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Yuchai Ship Electric Power Co.,Ltd. Address before: 537005 No. 88 flyover West Road, the Guangxi Zhuang Autonomous Region, Yulin Patentee before: Guangxi Yuchai Machinery Co.,Ltd. |