CN204283543U - The cooling structure of air valve seat ring - Google Patents
The cooling structure of air valve seat ring Download PDFInfo
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- CN204283543U CN204283543U CN201420769056.9U CN201420769056U CN204283543U CN 204283543 U CN204283543 U CN 204283543U CN 201420769056 U CN201420769056 U CN 201420769056U CN 204283543 U CN204283543 U CN 204283543U
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- valve seat
- seat ring
- cooling
- cooling channel
- exhaust
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Abstract
The utility model discloses a kind of cooling structure of air valve seat ring.The cooling structure of this air valve seat ring comprises: cylinder head body, it has the first suction port, the second suction port, first row gas port and the second exhaust port that assume diamond in shape and lay, is correspondingly provided with inlet valve seat ring and exhaust valve seat insert respectively in the ingress of described first suction port, the second suction port, first row gas port and second exhaust port; And cooling channel, it is opened between adjacent described exhaust valve seat insert, between adjacent described inlet valve seat ring and between adjacent described Valve seat circle.The cooling structure of this air valve seat ring by processing independent cooling channel between exhaust valve seat insert and inlet valve seat ring, cooling liquid can be made in this cooling channel to keep higher flow velocity, accelerate the heat radiation of exhaust valve seat insert and inlet valve seat ring and surrounding structure, improve the cooling capacity to exhaust valve seat insert and inlet valve seat ring.
Description
Technical field
The utility model relates to engine-cooling system field, particularly a kind of cooling structure of air valve seat ring.
Background technique
As everyone knows, during internal combustion engine, in cylinder head, the temperature of air outlet flue is very high, particularly exhaust valve seat insert, when expansion stroke end of a period exhaust valve is opened, high-temperature high-pressure fuel gas will directly act on exhaust valve seat insert, and inlet valve seat ring is because of the reason near exhaust valve seat insert simultaneously, and inlet valve seat ring also will be subject to high temperature and scorch.Exhaust valve seat insert and inlet valve seat ring surrounding structure produce distortion by because of higher heat load, if there is no the cooling of proper strength, easy generation crackle, also easily there is inordinate wear and affects engine performance and working life in exhaust valve seat insert and inlet valve seat ring.
Current, the type of cooling (not having special cooling structure to cool exhaust valve seat insert and inlet valve seat ring separately) that the exhaust valve seat insert of most of combustion engine cylinder head and inlet valve seat ring adopt the cooling liquid immersion type of cylinder head entirety to flow usually, the flowing velocity of the cooling liquid of this type of cooling is little, take away the scarce capacity of the heat of exhaust valve seat insert and inlet valve seat ring, heat transfer effect is not good, cause the temperature distortion of the thermal stress of exhaust valve seat insert and inlet valve seat ring and peripheral structure larger, cause the inordinate wear to exhaust valve seat insert and inlet valve seat ring thus, be unfavorable for the physical life improving exhaust valve seat insert and inlet valve seat ring, limit the further lifting of engine performance to a certain extent.
The information being disclosed in this background technique part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Model utility content
The purpose of this utility model is the cooling structure providing a kind of simple and reasonable air valve seat ring, the cooling structure of this air valve seat ring by processing independent cooling channel between exhaust valve seat insert and inlet valve seat ring, cooling liquid can be made in this cooling channel to keep higher flow velocity, accelerate the heat radiation of exhaust valve seat insert and inlet valve seat ring and surrounding structure, improve the cooling capacity to exhaust valve seat insert and inlet valve seat ring, reduce exhaust valve seat insert and the thermal stress of inlet valve seat ring and the temperature distortion of peripheral structure, and the inordinate wear to exhaust valve seat insert and inlet valve seat ring caused thus, be conducive to the physical life improving exhaust valve seat insert and inlet valve seat ring.In addition, the cooling structure of this air valve seat ring is changed little, practical to air cylinder head structure.
For achieving the above object, the utility model provides the cooling structure of air valve seat ring, comprise: cylinder head body, it has the first suction port, the second suction port, first row gas port and the second exhaust port that assume diamond in shape and lay, is correspondingly provided with inlet valve seat ring and exhaust valve seat insert respectively in the ingress of described first suction port, the second suction port, first row gas port and second exhaust port; And cooling channel, it is opened between adjacent described exhaust valve seat insert, between adjacent described inlet valve seat ring and between adjacent described Valve seat circle.
Preferably, in technique scheme, cooling channel comprises first cooling channel and the second cooling channel of intersecting at middle part.
Preferably, in technique scheme, the first cooling channel and the second cooling channel are the straight passage laterally offered relative to cylinder head body.
Preferably, in technique scheme, the second cooling channel and the first cooling channel form criss-cross construction.
Preferably, in technique scheme, the two ends of the first cooling channel and the second cooling channel are all sealed by blocking, the side, two ends of described first cooling channel and the second cooling channel all offers cooling liquid inflow entrance, described first cooling channel and the second cooling channel cooling liquid outflow opening be opened in the intersection of the first cooling channel and the second cooling channel.
Compared with prior art, the utility model has following beneficial effect: the cooling structure of this air valve seat ring by processing independent cooling channel between exhaust valve seat insert and inlet valve seat ring, cooling liquid can be made in this cooling channel to keep higher flow velocity, accelerate the heat radiation of exhaust valve seat insert and inlet valve seat ring and surrounding structure, improve the cooling capacity to exhaust valve seat insert and inlet valve seat ring, reduce exhaust valve seat insert and the thermal stress of inlet valve seat ring and the temperature distortion of peripheral structure, and the inordinate wear to exhaust valve seat insert and inlet valve seat ring caused thus, be conducive to the physical life improving exhaust valve seat insert and inlet valve seat ring.In addition, the cooling structure of this air valve seat ring is changed little, practical to air cylinder head structure.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the cooling structure of air valve seat ring of the present utility model.
Fig. 2 is the sectional structure schematic diagram in the W-W direction of Fig. 1.
Fig. 3 is the sectional structure schematic diagram in the K-K direction of Fig. 1.
Description of reference numerals:
1-blocks, 2-first cooling channel, 3-cylinder head body, 4-first row gas port, 5-cooling liquid outflow opening, 6-second cooling channel, 7-first suction port, 8-second suction port, 9-second exhaust port, 10-first row air valve seat ring, 11-second row air valve seat ring, 12-cooling liquid inflow entrance.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or constituent element, and do not get rid of other element or other constituent element.
As shown in Figure 1 to Figure 3, concrete structure according to the cooling structure of the air valve seat ring of the utility model embodiment comprises: with entering, the cylinder head body 3 of relief opening and be separately positioned on this and enter, the air valve seat ring of relief opening ingress, and be opened in cooling channel independent between each air valve seat ring, inside, described cooling channel has the cooling liquid circulated, for cooling air valve seat ring, and the flow velocity that cooling liquid keeps higher can be made, accelerate the heat radiation of exhaust valve seat insert and inlet valve seat ring and surrounding structure, improve the cooling capacity to exhaust valve seat insert and inlet valve seat ring, reduce exhaust valve seat insert and the thermal stress of inlet valve seat ring and the temperature distortion of peripheral structure, and the inordinate wear to exhaust valve seat insert and inlet valve seat ring caused thus, thus avoid existing cylinder head exhaust valve seat insert and inlet valve seat ring to be adopted to the type of cooling of the cooling liquid immersion type flowing of cylinder head entirety, special cooling structure is not had to cool exhaust valve seat insert and inlet valve seat ring separately, cause the flowing velocity of cooling liquid little, take away the scarce capacity of the heat of exhaust valve seat insert and inlet valve seat ring, the technological deficiency that heat transfer effect is not good.
Wherein, cylinder head body 3 has the first suction port 7, second suction port 8, first row gas port 4 and second exhaust port 9, this the first suction port 7, second suction port 8, first row gas port 4 and second exhaust port 9 assume diamond in shape laying, and adjacent suction port or relief opening are separated (the cylinder head body of this certain wall thickness is for the cooling channel forming cooling liquid circulation of holing) by the cylinder head body of certain wall thickness.Inlet valve seat ring and exhaust valve seat insert is respectively arranged with in the ingress of the first suction port 7, second suction port 8, first row gas port 4 and second exhaust port 9, as shown in Figure 2, first row air valve seat ring 10 is arranged on the ingress of second exhaust port 9, second row air valve seat ring 11 is arranged on the ingress of first row gas port 4, and first row air valve seat ring 10 and second row air valve seat ring 11 are installed in the bottom of cylinder head body 3.
Cooling channel is opened between adjacent exhaust seat ring, between adjacent inlet valve seat ring and between adjacent Valve seat circle, formed by boring on the cylinder head body of the certain wall thickness between adjacent exhaust seat ring, between adjacent inlet valve seat ring and between adjacent Valve seat circle, circulate for cooling liquid thus improve the cooling capacity to exhaust valve seat insert and inlet valve seat ring, reduce exhaust valve seat insert and the thermal stress of inlet valve seat ring and the temperature distortion of peripheral structure, and the inordinate wear to exhaust valve seat insert and inlet valve seat ring caused thus.
Cooling channel specifically comprises the first cooling channel 2 and the second cooling channel 6 that middle part is intersected, first cooling channel 2 and the second cooling channel 6 are the straight passage laterally offered relative to cylinder head body 3, formed by boring on the cylinder head body of wall thickness certain between adjacent exhaust seat ring, between adjacent inlet valve seat ring or between adjacent Valve seat circle, cooling water is introduced between Valve seat circle between adjacent exhaust seat ring, between adjacent inlet valve seat ring or adjacent, thus exhaust valve seat insert and inlet valve seat ring are cooled.Wherein, first cooling channel 2 is through adjacent exhaust seat ring and between adjacent inlet valve seat ring, as shown in Figure 2, the first cooling channel 2, between first row air valve seat ring 10 and second row air valve seat ring 11, can be introduced cooling water and cool exhaust valve seat insert and inlet valve seat ring.As shown in figures 1 and 3, the two ends of the first cooling channel 2 are all sealed by blocking 1, first cooling channel 2 has two cooling liquid inflow entrances 12, these two cooling liquid inflow entrances 12 are opened in the side, two ends of the first cooling channel 2 respectively, near the position of blocking 1, cooling water is entered in the first cooling channel 2 from two ends respectively by two cooling liquid inflow entrances 12.The cooling liquid outflow opening 5 of the first cooling channel 2 is opened in the intersection of the first cooling channel 2 and the second cooling channel 6, same, and cooling liquid outflow opening 5 is also the cooling liquid outflow opening of the second cooling channel 6.Second cooling channel 6 is through adjacent Valve seat circle, second cooling channel 6 and the first cooling channel 2 have similar structure, the two ends of the second cooling channel 6 are sealed by blocking 1 equally, and there are two cooling liquid inflow entrances, these two cooling liquid inflow entrances are opened in the side, two ends of the second cooling channel 6 respectively, near the position of blocking 1, cooling water is entered in the second cooling channel 6 from two ends respectively by two cooling liquid inflow entrances.Second cooling channel 6 and the first cooling channel 2 form criss-cross construction and are each passed through between Valve seat circle between adjacent exhaust seat ring, between adjacent inlet valve seat ring or adjacent, and all adopt the type of flow of drawing cooling water by two ends cooling liquid inflow entrance introducing cooling water and from the cooling liquid outflow opening of intersection, cooling liquid is made to keep higher flow velocity in this cooling channel, accelerate the heat radiation of exhaust valve seat insert and inlet valve seat ring and surrounding structure, improve the cooling capacity to exhaust valve seat insert and inlet valve seat ring.
As shown in Figure 3, cooling water enters in the first cooling channel 2 by cooling liquid inflow entrance 12, as shown in Figure 2, when cooling liquid flows in the first cooling channel 2, adjacent first row air valve seat ring 10 and second row air valve seat ring 11 are cooled, and finally flow out through cooling liquid outflow opening 5.
To sum up, the cooling structure of this air valve seat ring by processing independent cooling channel between exhaust valve seat insert and inlet valve seat ring, cooling liquid can be made in this cooling channel to keep higher flow velocity, accelerate the heat radiation of exhaust valve seat insert and inlet valve seat ring and surrounding structure, improve the cooling capacity to exhaust valve seat insert and inlet valve seat ring, reduce exhaust valve seat insert and the thermal stress of inlet valve seat ring and the temperature distortion of peripheral structure, and the inordinate wear to exhaust valve seat insert and inlet valve seat ring caused thus, be conducive to the physical life improving exhaust valve seat insert and inlet valve seat ring.In addition, the cooling structure of this air valve seat ring is changed little, practical to air cylinder head structure.
The aforementioned description to concrete exemplary of the present utility model is to illustrate and the object of illustration.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present utility model and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present utility model and various different selection and change.Scope of the present utility model is intended to limited by claims and equivalents thereof.
Claims (5)
1. a cooling structure for air valve seat ring, is characterized in that, comprising:
Cylinder head body, it has the first suction port, the second suction port, first row gas port and the second exhaust port that assume diamond in shape and lay, is correspondingly provided with inlet valve seat ring and exhaust valve seat insert respectively in the ingress of described first suction port, the second suction port, first row gas port and second exhaust port; And
Cooling channel, it is opened between adjacent described exhaust valve seat insert, between adjacent described inlet valve seat ring and between adjacent described Valve seat circle.
2. the cooling structure of air valve seat ring according to claim 1, is characterized in that, described cooling channel comprises the first crossing cooling channel and the second cooling channel.
3. the cooling structure of air valve seat ring according to claim 2, is characterized in that, described first cooling channel and the second cooling channel are the straight passage laterally offered relative to cylinder head body.
4. the cooling structure of air valve seat ring according to claim 2, is characterized in that, described second cooling channel and the first cooling channel form criss-cross construction.
5. the cooling structure of air valve seat ring according to claim 2, it is characterized in that, the two ends of described first cooling channel and the second cooling channel are all sealed by blocking, the side, two ends of described first cooling channel and the second cooling channel all offers cooling liquid inflow entrance, and the cooling liquid outflow opening of described first cooling channel and the second cooling channel is opened in the intersection of the first cooling channel and the second cooling channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769056.9U CN204283543U (en) | 2014-12-08 | 2014-12-08 | The cooling structure of air valve seat ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769056.9U CN204283543U (en) | 2014-12-08 | 2014-12-08 | The cooling structure of air valve seat ring |
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| Publication Number | Publication Date |
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| CN204283543U true CN204283543U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420769056.9U Active CN204283543U (en) | 2014-12-08 | 2014-12-08 | The cooling structure of air valve seat ring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405467A (en) * | 2014-12-08 | 2015-03-11 | 广西玉柴机器股份有限公司 | Valve retainer cooling structure |
-
2014
- 2014-12-08 CN CN201420769056.9U patent/CN204283543U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405467A (en) * | 2014-12-08 | 2015-03-11 | 广西玉柴机器股份有限公司 | Valve retainer cooling structure |
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Effective date of registration: 20230117 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. |