CN201059209Y - Engine valve seat insert structure - Google Patents
Engine valve seat insert structure Download PDFInfo
- Publication number
- CN201059209Y CN201059209Y CNU2007200384933U CN200720038493U CN201059209Y CN 201059209 Y CN201059209 Y CN 201059209Y CN U2007200384933 U CNU2007200384933 U CN U2007200384933U CN 200720038493 U CN200720038493 U CN 200720038493U CN 201059209 Y CN201059209 Y CN 201059209Y
- Authority
- CN
- China
- Prior art keywords
- valve seat
- valve
- seat ring
- top layer
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000000465 moulding Methods 0.000 claims description 4
- 238000004663 powder metallurgy Methods 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002344 surface layer Substances 0.000 abstract 4
- 239000010410 layer Substances 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Powder Metallurgy (AREA)
Abstract
The utility model discloses a valve seat ring structure for an engine which is arranged at the position where an air inlet opening and an air outlet opening on a cylinder cover of an automotive engine are jointed with a valve tapered surface. The structure is that a valve seat ring (3) is embedded into the cylinder cover, a hole of the valve seat ring is a tapered hole coordinated with the valve, the valve seat ring (3) is formed by a valve seat surface layer (2) and a valve seat bottom layer (1), wherein, the valve seat surface layer (2) contacts the valve, the end surfaces of the valve seat surface layer (2) and the valve are closed jointed and connected into a whole, and inner holes and outer circles of the valve seat surface layer and the valve are equal. The utility model can meet the working conditions of high temperature, high pressure, high frequency impact of the valve mechanism of the engine, decrease the material cost of the valve seat ring at the same time, has uncomplicated manufacturing process, use and maintenance, and improves the comprehensive economic performance.
Description
Technical field
The technical field of the automobile construction that the utility model belongs to relates to Vehicle Engine Structure, and more particularly, the utility model relates to a kind of engine valve retainer structure.
Background technique
At present, the structural design scheme of valve retainer for automobile engine is for adopting a kind of overall structure of material.The working environment of engine valve and valve seat is very abominable, bear high temperature, high pressure and impact force, and requiring again has quite long working life, especially exhaust valve seat insert.Therefore require engine valve retainer must adopt the good heat-resistance anti-abrasive material, generally adopt heat-resisting alloy material, its material price is also higher.So the organization plan of the homogenous material of taking at present causes the rising of cost of material.In fact, the position that does not contact on the air valve seat ring with valve, because of its load form, environmental conditions of bearing does not have its place, aperture severe, the requirement of its mechanics of materials and high-temperature behavior needn't be too high, can suitably reduce.
The model utility content
Problem to be solved in the utility model provides a kind of engine valve retainer structure, its objective is to reduce the cost of material of air valve seat ring under the prerequisite that guarantees usage requirement.
To achieve these goals, the technological scheme that the utility model is taked is: this engine valve retainer structure that is provided, be located at the position that intake and exhaust road junction on the cylinder cover of automobile engine and valve-face fit, its structure is that air valve seat ring embeds cylinder head, the aperture of air valve seat ring is a taper hole, with the conical surface of valve for being sealed and matched, described air valve seat ring is made of valve seat top layer and valve seat bottom, wherein, the valve seat top layer contacts with valve, above-mentioned two end faces fit tightly and connect as a wholely, and two endoporus and cylindrical all equate.
The material of described valve seat top layer and valve seat bottom is powder metallurgy, and the wear resistance on valve seat top layer and high temperature hardness are greater than the valve seat bottom.
Described valve seat top layer and valve seat bottom be shaped as two branch chamber moulding separately, it is as a whole that pressure sintering becomes.
Adopt technique scheme, the operating conditions that high temperature, high pressure, the high frequency that makes the utility model can satisfy engine air valve device impacted simultaneously, reduces the air valve seat ring cost of material, its manufacturing process, use and keep in repair all uncomplicatedly, comprehensive economic performance is improved.
Description of drawings
Below expressed content of this Figure of description and the mark among the figure are made brief description:
Fig. 1 is a structural representation of the present utility model.
Be labeled as among the figure: 1, valve seat bottom, 2, the valve seat top layer, 3, air valve seat ring.
Embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and working principle, the manufacturing process of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, with help those skilled in the art to model utility of the present utility model conceive, technological scheme has more complete, accurate and deep understanding.
In motor car engine, the position that the intake and exhaust port of cylinder head and valve-face fit is a valve seat.It and valve-face fit tightly with sealing cylinder.Valve seat can directly bore on cylinder, but the valve seat of present most motors is to make air valve seat ring separately with heat-resisting alloy steel, is pressed in the cylinder head, to improve working life and to be convenient to maintain and replace.
The of the present utility model structure expressed as Fig. 1, the utility model is a kind of engine valve retainer structure, be located at the position that intake and exhaust road junction on the cylinder cover of automobile engine and valve-face fit, its structure is that air valve seat ring 3 embeds cylinder head, the aperture of air valve seat ring 3 is a taper hole, with the conical surface of valve for being sealed and matched.As described in this specification background technique, known technology all is the air valve seat ring that adopts whole a kind of material at present, and actual alloy material for costliness is a kind of waste.
In order to be implemented under the prerequisite that guarantees usage requirement, reduce the purpose of air valve seat ring cost of material, the technological scheme that the utility model is taked is: as shown in Figure 1, at the analysis of front to background technique, the utility model adopts the lamination layer structure of two kinds of materials, and promptly described air valve seat ring 3 is made of valve seat top layer 2 and valve seat bottom 1, wherein, valve seat top layer 2 contacts with valve, and above-mentioned two end faces fit tightly and connect as a wholely, and two endoporus and cylindrical all equate.
This air valve seat ring that the utility model provides adopts two kinds of materials, upper and lower layers structural design, comes reasonably select material according to the function of air valve seat ring, and Economy is improved.The total modern design promptly fully satisfies product performance, has reduced cost again to a great extent, be motor particularly low-cost route pay the utmost attention to product.
In the structure of two layers of material up and down of the air valve seat ring that the utility model provides, valve seat top layer 2 is owing to directly contact with valve, collide repeatedly, need the material high temperature resistant, that abrasion resistance properties is high, valve seat bottom 1 can be chosen the relatively low material of performance index, therefore for whole air valve seat ring 3, precious materials to choose the ratio that takies less, cost will reduce.
The material of described valve seat top layer and valve seat bottom 1 is powder metallurgy, and the wear resistance on valve seat top layer and high temperature hardness are greater than valve seat bottom 1.
The technological scheme that proposes of the present utility model is to adopt the structural design of two kinds of close materials of thermal expansion coefficient on an air valve seat ring 3.The air valve seat ring 3 of this scheme mainly can reduce cost.
Described valve seat top layer and valve seat bottom 1 be shaped as two branch chamber moulding separately, it is as a whole that pressure sintering becomes.
Air valve seat ring generally all is a powder metallurgy, and the trial-production master operation is to mix powder---moulding---sintering; The air valve seat ring of this kind structure and the air valve seat ring of homogenous material Comparatively speaking, what adopt in trial-production is the moulding of branch chamber, and then integral sintered, the sample that comes out like this air valve seat ring with homogenous material on bulk strength is suitable.
The material on valve seat top layer 2 high temperature resistant, abrasion resistance properties is higher, but design has minimum constructive height H restriction, as shown in Figure 1.Minimum constructive height H is the thickness of the axial direction on valve seat top layer 2, be through to the temperature studies of the wearing and tearing of air valve seat ring 3 and firing chamber and whole motor and analysis and fixed, the layer height of material must not be less than minimum constructive height H.In the motor actual motion, the temperature height of firing chamber, therefore the higher heat-resisting quantity of air valve seat ring subsurface material can guarantee this requirement, and the upper temp requirement is Comparatively speaking lower, therefore can adopt the relatively low material of heat-resisting quantity, also reduce cost when satisfying performance, improved Economy.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technological scheme carry out; or inventive concept of the present utility model and technological scheme are directly applied to other occasion without improving, all within protection domain of the present utility model.
Claims (3)
1. engine valve retainer structure, be located at the position that intake and exhaust road junction on the cylinder cover of automobile engine and valve-face fit, its structure is that air valve seat ring (3) embeds cylinder head, the aperture of air valve seat ring (3) is a taper hole, with the conical surface of valve for being sealed and matched, it is characterized in that: described air valve seat ring (3) is made of valve seat top layer (2) and valve seat bottom (1), wherein, valve seat top layer (2) contacts with valve, above-mentioned two end faces fit tightly and connect as a wholely, and two endoporus and cylindrical all equate.
2. according to the described engine valve retainer structure of claim 1, it is characterized in that: the material of described valve seat top layer (2) and valve seat bottom (1) is heat-resisting powder metallurgy, and the wear resistance of valve seat top layer (2) and high temperature hardness are greater than valve seat bottom (1).
3. according to the described engine valve retainer structure of claim 2, it is characterized in that: described valve seat top layer (2) and valve seat bottom (1) be shaped as two branch chamber moulding separately, it is as a whole that pressure sintering becomes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200384933U CN201059209Y (en) | 2007-06-30 | 2007-06-30 | Engine valve seat insert structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200384933U CN201059209Y (en) | 2007-06-30 | 2007-06-30 | Engine valve seat insert structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201059209Y true CN201059209Y (en) | 2008-05-14 |
Family
ID=39407678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200384933U Expired - Fee Related CN201059209Y (en) | 2007-06-30 | 2007-06-30 | Engine valve seat insert structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201059209Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590586B (en) * | 2009-07-02 | 2011-10-26 | 张永炤 | Method and mould for manufacturing valve retainer |
| CN104428500A (en) * | 2012-07-04 | 2015-03-18 | 布莱史塔生产有限两合公司 | Highly thermally conductive valve seat ring |
| CN106545375A (en) * | 2016-12-06 | 2017-03-29 | 江苏四达动力机械集团有限公司 | A kind of valve sealing structure and its sealing technology |
| CN108588577A (en) * | 2018-06-27 | 2018-09-28 | 潍柴动力股份有限公司 | Valve retainer and its preparation process |
| CN108698130A (en) * | 2017-03-28 | 2018-10-23 | 株式会社理研 | It is sintered valve seat |
| CN112943404A (en) * | 2021-02-07 | 2021-06-11 | 浙江吉利控股集团有限公司 | Engine valve seat ring and methanol engine |
| CN112963219A (en) * | 2021-03-29 | 2021-06-15 | 安徽江淮汽车集团股份有限公司 | Valve seat ring, gasoline engine and automobile |
-
2007
- 2007-06-30 CN CNU2007200384933U patent/CN201059209Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101590586B (en) * | 2009-07-02 | 2011-10-26 | 张永炤 | Method and mould for manufacturing valve retainer |
| CN104428500A (en) * | 2012-07-04 | 2015-03-18 | 布莱史塔生产有限两合公司 | Highly thermally conductive valve seat ring |
| CN104428500B (en) * | 2012-07-04 | 2018-07-20 | 布莱史塔生产有限两合公司 | High-termal conductivity valve retainer |
| CN106545375A (en) * | 2016-12-06 | 2017-03-29 | 江苏四达动力机械集团有限公司 | A kind of valve sealing structure and its sealing technology |
| CN108698130A (en) * | 2017-03-28 | 2018-10-23 | 株式会社理研 | It is sintered valve seat |
| CN108698130B (en) * | 2017-03-28 | 2019-08-06 | 株式会社理研 | It is sintered valve seat |
| CN108588577A (en) * | 2018-06-27 | 2018-09-28 | 潍柴动力股份有限公司 | Valve retainer and its preparation process |
| CN112943404A (en) * | 2021-02-07 | 2021-06-11 | 浙江吉利控股集团有限公司 | Engine valve seat ring and methanol engine |
| CN112963219A (en) * | 2021-03-29 | 2021-06-15 | 安徽江淮汽车集团股份有限公司 | Valve seat ring, gasoline engine and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SAIC CHERY AUTOMOBILE CO., LTD. Free format text: FORMER NAME OR ADDRESS: QIRUI AUTOMOBILE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: No. 8, Changchun Road, Wuhu economic and Technological Development Zone, Anhui 241009, China Patentee after: Saic Chery Automobile Co., Ltd. Address before: No. 8, Changchun Road, Wuhu economic and Technological Development Zone, Anhui 241009, China Patentee before: Qirui Automobile Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20130630 |