CN201133264Y - Diesel engine intake valve seat ring - Google Patents
Diesel engine intake valve seat ring Download PDFInfo
- Publication number
- CN201133264Y CN201133264Y CNU2007201314656U CN200720131465U CN201133264Y CN 201133264 Y CN201133264 Y CN 201133264Y CN U2007201314656 U CNU2007201314656 U CN U2007201314656U CN 200720131465 U CN200720131465 U CN 200720131465U CN 201133264 Y CN201133264 Y CN 201133264Y
- Authority
- CN
- China
- Prior art keywords
- sealing strip
- valve seat
- seat ring
- chamfering
- air valve
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 83
- 230000007704 transition Effects 0.000 claims abstract description 24
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 3
- 230000004907 flux Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000010710 diesel engine oil Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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Abstract
The utility model discloses a diesel engine intake valve pedestal ring. A chamfer angle is added at the position of an intake valve pedestal ring sealing belt (2) near an opening, so as to form two sealing belt chamfer angles (4) with different angles, which are different from the angle of the chamfer angle of a sealing belt transition structure (5). After the technical proposal is used, the airflow trend is improved when the intake valve is started; the vortex intensity, the flux coefficient and the inflating efficiency are all improved with different degrees; the flowing resistance is reduced partially; at the same time, the tightness after the pedestal ring is worn slightly can also be improved; the utility model improves the oil consumption of the diesel engine and also achieves the aim of reducing the discharge.
Description
Technical field
The utility model belongs to the technical field of automobile construction, relates to the structure of the air exchange system of motor car engine, and more particularly, the utility model relates to a kind of diesel engine intake gate seat circle.
Background technique
Transitional form before and after the angle of automotive Diesel engine inlet valve seat ring sealing strip and the sealing strip moves towards closely bound up with air-flow, thereby to the flow coefficient and the very big influence of swirl rate generation of diesel engine air flue.
Below in conjunction with this Figure of description present disclosed technology is done simple the introduction.
Consider easy to processly, inlet valve seat ring sealing strip design form at present commonly used is:
1, as shown in Figure 1, do not have transition structure between air valve seat ring sealing strip 2 on the air valve seat ring 1 and air valve seat ring aditus laryngis 3, so 2 of air valve seat ring sealing strips adopt a chamfering, promptly the sealing strip chamfering 4, also i.e. θ among the figure, and its angle is 45 °.The processing of this kind structure is comparatively simple, but unfavorable to the improvement of swirl rate, thereby causes diesel engine oil gas undercompounding, influences the Economy of diesel engine.
2, smooth and easy in order to guarantee air inlet, as shown in Figure 2, at the i.e. chamfering θ among the figure of air valve seat ring sealing strip 2
2And adopt the chamfering transition between the air valve seat ring aditus laryngis 3, promptly between air valve seat ring sealing strip 2 and air valve seat ring aditus laryngis 3, increase a sealing strip transition structure 5, i.e. chamfering θ among the figure
1Concrete angle: θ
1Be 30 °, θ
2It is 45 °.The design of this chamfering structure can make strength of vortex obtain a spot of lifting, but still can not satisfy the requirement of diesel engine to maelstrom.
Obviously,, adopt this structure still to have the defective that strength of vortex and flow coefficient are not high, flow resistance is bigger, and the sealing after a little wearing and tearing of air valve seat ring descend at different engine air flue patterns, aditus laryngis and air valve seat ring diameter.
The model utility content
Problem to be solved in the utility model provides a kind of diesel engine intake gate seat circle, and its goal of the invention is to improve the intake vortex strength and the charging efficiency of diesel engine.
To achieve these goals, the technological scheme that the utility model is taked is: this diesel engine intake gate seat circle that is provided, described air valve seat ring comprises air valve seat ring sealing strip and air valve seat ring aditus laryngis, described air valve seat ring sealing strip is the sealing strip chamfering structure, between described sealing strip chamfering and air valve seat ring aditus laryngis, be provided with the sealing strip transition structure, its structure is and the different chamfering of described sealing strip chamfer angle, also increase a chamfering at the air valve seat ring sealing strip by the position, aperture, form two sealing strip chamferings that angle is different, and also inequality with the chamfer angle of described sealing strip transition structure.
For making the utility model more perfect, following more detailed and concrete technological scheme has also further been proposed, to obtain best practical effect, realize goal of the invention better, and improve novelty of the present utility model and creativeness:
The technological scheme of the angular dimension of sealing strip chamfering: the angular dimension of described two sealing strip chamferings and sealing strip transition structure closes and is: lean on the sealing strip chamfering of the sealing strip chamfering in aperture greater than inner portion; The sealing strip chamfering of inner portion is greater than the chamfer angle of sealing strip transition structure.
Further, the angle of described two sealing strip chamferings is respectively 65.5 ° and 45.5 °; The chamfer angle of described sealing strip transition structure is 25.5 °.
The utility model adopts technique scheme, through CAE and air flue current stabilization analysis of experiments, this sealing strip chamfering structure design is compared with the structure that openly makes at present, air-flow trend when having improved valve opening, strength of vortex, flow coefficient and charging efficiency all have improvement in various degree, and also have part to lower to flow resistance; Also can improve simultaneously seat ring a little wearing and tearing after sealing; Improve the oil consumption level of diesel engine, and reached the purpose of settling-discharging.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are made brief description:
Fig. 1 is the structural representation that the described air valve seat ring sealing strip of this specification background technique part adopts a chamfering;
Fig. 2 is the structural representation that the described air valve seat ring sealing strip of this specification background technique part adopts two chamferings;
Fig. 3 is a structural representation of the present utility model.
Be labeled as among the figure: 1, air valve seat ring, 2, the air valve seat ring sealing strip, 3, the air valve seat ring aditus laryngis, 4, the sealing strip chamfering, 5, the sealing strip transition structure.
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, inventive concept of the present utility model, technological scheme had more complete, accurate and deep understanding to help those skilled in the art.
As Fig. 1, Fig. 2 and the expressed structure of the present utility model of Fig. 3, the utility model is a kind of diesel engine intake gate seat circle, it is the air valve seat ring 1 in each accompanying drawing, include air valve seat ring sealing strip 2 and air valve seat ring aditus laryngis 3 in the present known structure, described air valve seat ring sealing strip 2 is sealing strip chamfering 4 structures, be provided with sealing strip transition structure 5 between described sealing strip chamfering 4 and air valve seat ring aditus laryngis 3, its structure is and the different chamfering of described sealing strip chamfering 4 angles.The setting of sealing strip transition structure (5) r, the lifting that strength of vortex is obtained.
In order to solve the problem that exists at the described present known technology of this specification background technique part and to overcome its defective, realize improving the intake vortex strength of diesel engine and the goal of the invention of charging efficiency, the technological scheme that the utility model is taked is: as shown in Figure 3, this diesel engine intake gate seat circle provided by the utility model, also increase a chamfering at air valve seat ring sealing strip 2 by the position, aperture, form two sealing strip chamferings 4 that angle is different, and also inequality with the chamfer angle of described sealing strip transition structure 5.
This sealing strip chamfering structure design that the utility model adopted is compared with the present structure that public technology adopted, air-flow trend when having improved valve opening, strength of vortex, flow coefficient and charging efficiency all have improvement in various degree, and also have part to lower to flow resistance; Also can improve simultaneously seat ring a little wearing and tearing after sealing; Improve the oil consumption level of diesel engine, and reached the purpose of settling-discharging.
In order to make the present invention more perfect, also provide following exemplifying embodiment as the present invention's reference in the specific implementation:
Embodiment one:
The angular dimension of described two sealing strip chamferings 4 and sealing strip transition structure 5 closes: lean on the sealing strip chamfering 4 of the sealing strip chamfering 4 in aperture greater than inner portion; The sealing strip chamfering 4 of inner portion is greater than the chamfer angle of sealing strip transition structure 5.
Through CAE and air flue current stabilization analysis of experiments, this sealing strip chamfer design all has in various degree improvement than traditional design strength of vortex and flow coefficient, also can improve the sealing after a little wearing and tearing of seat ring simultaneously.
Embodiment two:
Present embodiment is more specific enforcement parameter of the embodiment one, the utility model is improved more and:
The chamfer angle of described two sealing strip chamferings 4 is respectively 65.5 ° and 45.5 °; The chamfer angle of described sealing strip transition structure 5 is 25.5 °.
As shown in Figure 3, wherein, the angle of described two sealing strip chamferings 4 is respectively θ
2=45.5 ° and θ
3=65.5 °; The chamfer angle of described sealing strip transition structure 5 is θ
1=25.5 °.
Embodiment three:
Present embodiment is the embodiment of processing method:
When processing air valve seat ring 1, to three angle θ shown in Figure 3
1, θ
2And θ
3The employing profile cutter processes at one time, and reduces the machining tolerance of coaxality.
Following table is the steady flow testbed of air passage correlation data:
| Structural type | Average vortex is than (n D/n) m | Mean flowrate system (μ σ) m |
| Structure shown in Figure 1: 45 ° of sealing strips; The no chamfering in front and back | 1.527 | 0.346 |
| Structure shown in Figure 2: 45 ° of sealing strips; With air valve seat ring aditus laryngis 3 be 30 ° of chamfering transition | 1.548 | 0.347 |
| Structure of the present invention: 45.5 ° of sealing strips; With air valve seat ring aditus laryngis 3 be 25.5 ° of chamfering transition; The sealing strip collar extension increases by 65.5 ° of chamferings | 1.782 | 0.360 |
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 design 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, a kind of diesel engine intake gate seat circle, described air valve seat ring (1) comprises air valve seat ring sealing strip (2) and air valve seat ring aditus laryngis (3), described air valve seat ring sealing strip (2) is sealing strip chamfering (a 4) structure, between described sealing strip chamfering (4) and air valve seat ring aditus laryngis (3), be provided with sealing strip transition structure (5), its structure is and the different chamfering of described sealing strip chamfering (4) angle, it is characterized in that: also increase a chamfering by the position, aperture at air valve seat ring sealing strip (2), form two sealing strip chamferings (4) that angle is different, and also inequality with the chamfer angle of described sealing strip transition structure (5).
2, according to the described diesel engine intake gate seat of claim 1 circle, it is characterized in that: the angular dimension of described two sealing strip chamferings (4) and sealing strip transition structure (5) closes and is: lean on the sealing strip chamfering (4) of the sealing strip chamfering (4) in aperture greater than inner portion; The sealing strip chamfering (4) of inner portion is greater than the chamfer angle of sealing strip transition structure (5).
3, according to the described diesel engine intake gate seat of claim 1 circle, it is characterized in that: the angle of described two sealing strip chamferings (4) is respectively 65.5 ° and 45.5 °; The chamfer angle of described sealing strip transition structure (5) is 25.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201314656U CN201133264Y (en) | 2007-12-14 | 2007-12-14 | Diesel engine intake valve seat ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201314656U CN201133264Y (en) | 2007-12-14 | 2007-12-14 | Diesel engine intake valve seat ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201133264Y true CN201133264Y (en) | 2008-10-15 |
Family
ID=40061537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201314656U Expired - Fee Related CN201133264Y (en) | 2007-12-14 | 2007-12-14 | Diesel engine intake valve seat ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201133264Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101576017B (en) * | 2009-06-10 | 2011-09-07 | 上海汽车集团股份有限公司 | Method for enhancing power of gasoline engine |
| CN103551868A (en) * | 2013-10-18 | 2014-02-05 | 安庆帝伯粉末冶金有限公司 | Panel device for preventing chamfering machining direction of air valve retainer from being reversed |
| CN108590872A (en) * | 2018-03-30 | 2018-09-28 | 潍柴动力股份有限公司 | The valve retainer bottom outlet and cylinder head of cylinder head |
| CN109209672A (en) * | 2018-09-27 | 2019-01-15 | 潍柴动力股份有限公司 | Special-shaped valve retainer bottom outlet and cylinder head |
| US10989321B2 (en) | 2019-04-26 | 2021-04-27 | Caterpillar Inc. | Double-crowned valve seat insert having seating surface formed of hard-facing material |
| US11060425B2 (en) | 2019-03-13 | 2021-07-13 | Caterpillar Inc. | Valve seat insert for engine head having venturi flow crowns and seating surface profiled for limiting valve recession |
| CN114215780A (en) * | 2021-12-06 | 2022-03-22 | 中国航发沈阳发动机研究所 | Compressor interstage total temperature measurement structure |
| CN114320981A (en) * | 2021-12-06 | 2022-04-12 | 中国航发沈阳发动机研究所 | Total pressure measurement sensing part and compressor interstage total pressure measurement structure thereof |
-
2007
- 2007-12-14 CN CNU2007201314656U patent/CN201133264Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101576017B (en) * | 2009-06-10 | 2011-09-07 | 上海汽车集团股份有限公司 | Method for enhancing power of gasoline engine |
| CN103551868A (en) * | 2013-10-18 | 2014-02-05 | 安庆帝伯粉末冶金有限公司 | Panel device for preventing chamfering machining direction of air valve retainer from being reversed |
| CN108590872A (en) * | 2018-03-30 | 2018-09-28 | 潍柴动力股份有限公司 | The valve retainer bottom outlet and cylinder head of cylinder head |
| CN108590872B (en) * | 2018-03-30 | 2019-09-27 | 潍柴动力股份有限公司 | The valve retainer bottom outlet and cylinder head of cylinder head |
| CN109209672A (en) * | 2018-09-27 | 2019-01-15 | 潍柴动力股份有限公司 | Special-shaped valve retainer bottom outlet and cylinder head |
| CN109209672B (en) * | 2018-09-27 | 2020-08-21 | 潍柴动力股份有限公司 | Special-shaped valve seat ring bottom hole and cylinder cover |
| US11060425B2 (en) | 2019-03-13 | 2021-07-13 | Caterpillar Inc. | Valve seat insert for engine head having venturi flow crowns and seating surface profiled for limiting valve recession |
| US10989321B2 (en) | 2019-04-26 | 2021-04-27 | Caterpillar Inc. | Double-crowned valve seat insert having seating surface formed of hard-facing material |
| CN114215780A (en) * | 2021-12-06 | 2022-03-22 | 中国航发沈阳发动机研究所 | Compressor interstage total temperature measurement structure |
| CN114320981A (en) * | 2021-12-06 | 2022-04-12 | 中国航发沈阳发动机研究所 | Total pressure measurement sensing part and compressor interstage total pressure measurement structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20121214 |