CN209604160U - A kind of compacted iron cylinder cover structure of novel high-strength thin-walled - Google Patents
A kind of compacted iron cylinder cover structure of novel high-strength thin-walled Download PDFInfo
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- CN209604160U CN209604160U CN201920055424.6U CN201920055424U CN209604160U CN 209604160 U CN209604160 U CN 209604160U CN 201920055424 U CN201920055424 U CN 201920055424U CN 209604160 U CN209604160 U CN 209604160U
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- cylinder cap
- oil
- cap ontology
- hole
- water jacket
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to automobile technical field more particularly to a kind of compacted iron cylinder cover structures of novel high-strength thin-walled.Including novel cylinder cap ontology, the cylinder cap ontology, which is integrated, to be cast, the cylinder cap ontology application EN-GJV-450 vermicular graphite iron material, the cylinder cap integrated intake manifold；Cylinder cap ontology upper end is provided with oil injector hole, and the oil injector hole runs through cylinder cap ontology, is provided with oil sprayer bushing in the cylinder cap ontology, the oil sprayer bushing two sides are provided with water jacket, and fuel injector is assemblied in the oil sprayer bushing；High-intensity performance based on compacted iron, in the case where guaranteeing that equality strength requires, there is more flexible design space in structured design process using the cylinder cap of compacted iron casting, in the place that intensity surplus is abundant, material wall thickness can suitably be reduced, or the light-weight design demand of cylinder cap is realized using modes such as thin-walled features, to realize the functional requirement of low oil consumption indirectly.
Description
Technical field
The utility model relates to automobile technical field more particularly to a kind of compacted iron cylinder cover structures of novel high-strength thin-walled.
Background technique
Traditional heavy-duty engine cylinder cap mostly uses grey cast-iron (hereinafter referred to as gray iron), utilizes the excellent casting of gray cast iron
And processing performance, the necessary function of Lai Shixian cylinder cap.As future automobile is towards high power, low oil consumption, what lightweight developed becomes
Gesture, traditional cylinder cover material gray cast iron, the demand that gradually not competent high-power engine develops, compared with gray cast iron, vermicular cast iron
With at least high 75% tensile strength, high 40% elasticity modulus and the fatigue strength almost to double；Therefore vermicular cast iron
The demand of current and future engine Design and Features can be met well.Furthermore vermicular cast iron (compacted iron) has excellent
Heat resistance and thermal conductivity, antifatigue and dimensional stability has the advantages that while meeting technology, environmental protection and power conservation requirement, by
Gradually become advanced high-power engine preferred material, in light-duty high-strength engine, high-power engine, heavy-duty engine
In more and more applications.For the fatigue strength of vermicular cast iron between 200~350MPa, elongation percentage is (1~5) %, and high temperature is anti-
Fatigability, crack resistence are also better than gray cast iron, and non-deformability is better than magnesium iron.
It is set using the cylinder cap of compacted iron casting in structure based on the high-intensity performance of compacted iron in the case where guaranteeing that equality strength is required
There is more flexible design space during meter, in the place that intensity surplus is abundant, can suitably reduce material wall thickness, or use
The modes such as thin-walled feature realize the light-weight design demand of cylinder cap, to realize the functional requirement of low oil consumption indirectly.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, adapt to reality and need, provide a kind of novel high-strength
Spend the compacted iron cylinder cover structure of thin-walled.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model are as follows: a kind of novel high-strength is thin
The compacted iron cylinder cover structure of wall, including novel cylinder cap ontology, the cylinder cap ontology, which is integrated, to be cast, the cylinder cap ontology application
EN-GJV-450 vermicular graphite iron material, cylinder cap ontology upper end are provided with oil injector hole, and the oil injector hole runs through cylinder cap sheet
Body, is provided with oil sprayer bushing in the cylinder cap ontology, and fuel injector is through being installed on inside oil sprayer bushing；The fuel injector lining
Set two sides are provided with water jacket, and water jacket is separated；The cylinder cap ontology air inlet side be provided with high pressure fuel connecter hole (at every cylinder,
The high-tension connector of assembly connection fuel injector), air intake duct is provided in the cylinder cap ontology of high pressure fuel connecter hole lower part
Import；The inlet manifold of the cylinder cap Ontology integration of Fighter Inlet connection is stated, is provided with air inlet discrimination on integrated intake manifold side wall
Pipe sand cleaning hole.
Two part cavitys up and down, the oil injector hole upper end two are provided in the cylinder cap ontology of the oil injector hole two sides
The cavity of side is respectively the first upper layer water jacket and the second upper layer water jacket, and first upper layer water jacket and the second upper layer water jacket mutually connect
It is logical；The cavity of oil injector hole lower end two sides is respectively first lower layer's water jacket and second lower layer's water jacket.
The oil injector hole side wall is provided with fixing groove in a ring, and the oil sprayer bushing corresponding position is provided with therewith
Corresponding fixing groove in a ring is provided with fixed rubber ring in the fixing groove between the oil injector hole and oil sprayer bushing.
The oil sprayer bushing bottom is provided with bolt, and the oil sprayer bushing connects by the way that bolt and cylinder cap ontology are fixed
It connects.
The oil sprayer bushing bottom is provided with copper packing, and the bolt passes through copper packing and is threadedly engaged with oil sprayer bushing.
The utility model has the beneficial effects that:
It is set using the cylinder cap of compacted iron casting in structure based on the high-intensity performance of compacted iron in the case where guaranteeing that equality strength is required
There is more flexible design space during meter, in the place that intensity surplus is abundant, can suitably reduce material wall thickness, or use
The modes such as thin-walled feature realize the light-weight design demand of cylinder cap, to realize the functional requirement of low oil consumption indirectly.
Detailed description of the invention
The utility model is described further with case study on implementation with reference to the accompanying drawing.
Fig. 1 is conventional cylinder head fuel injector hole structural schematic diagram nearby；
Fig. 2 is the utility model oil injector hole structural schematic diagram nearby；
Fig. 3 is traditional cylinder cover oil injector hole jacket structure for water schematic diagram nearby；
Fig. 4 is the utility model oil injector hole jacket structure for water schematic diagram nearby.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples:
Referring to Fig. 1-4.
The utility model discloses a kind of compacted iron cylinder cover structures of novel high-strength thin-walled, including novel cylinder cap ontology, institute
It states cylinder cap ontology and is integrated and cast, the cylinder cap ontology application EN-GJV-450 vermicular graphite iron material, the cylinder cap ontology
Upper end is provided with oil injector hole 2, and the oil injector hole 2 runs through cylinder cap ontology, is provided with oil sprayer bushing in the cylinder cap ontology
3,3 two sides of oil sprayer bushing are provided with water jacket；Cylinder cap ontology side is provided with high pressure fuel connecter hole 1, described
Fighter Inlet 5, the cylinder cap of 5 side of Fighter Inlet are provided in the cylinder cap ontology of 1 downside of high pressure fuel connecter hole
Inlet manifold sand cleaning hole 4 is provided on this body sidewall.
Two part cavitys up and down, 2 upper end of oil injector hole are provided in the cylinder cap ontology of 2 two sides of oil injector hole
The cavity of two sides is respectively the first upper layer water jacket 7 and the second upper layer water jacket 9, first upper layer water jacket 7 and the second upper layer water jacket 9
It is interconnected；The cavity of the 2 lower end two sides of oil injector hole is respectively first lower layer's water jacket 6 and second lower layer's water jacket 8.
2 side wall of oil injector hole is provided with fixing groove in a ring, 3 corresponding position of oil sprayer bushing be provided with
Corresponding fixing groove in a ring, be provided with fixed rubber in the fixing groove between the oil injector hole 2 and oil sprayer bushing 3
Circle 10.
3 bottom of oil sprayer bushing is provided with threaded hole 12, and the oil sprayer bushing 3 passes through threaded hole 12 and cylinder cap sheet
Body is fixedly connected.
3 bottom of oil sprayer bushing is provided with copper packing 11, and the bolt 12 passes through copper packing 11 and 3 screw thread of oil sprayer bushing
Cooperation.
Cylinder cap application EN-GJV-450 vermicular graphite iron material, significantly improves cylinder cap tensile strength.Based on high-strength material, cylinder
Water jacket in lid oil injector hole region eliminates wall thickness design in the middle part of cylinder head fuel injector hole, makes oil injector hole region (cylinder cover water jacket
Structure perforation effectively reduces cylinder cap part materials in the case where meeting Intensity of Cylinder Head requirement, realizes that the lightweight of cylinder body part is set
Meter, while improving water jacket part negotiability, promote the cooling efficiency of water jacket.In terms of casting, simplifies sand core of water jacket moulding, mention
The profile continuity for rising sand core, is effectively reduced sand core breakage rate.
Slipcase and oil injector hole is isolated by penetrating through after the completion of machining with water jacket, by thin-walled metal bush in oil injector hole,
Using copper packing+seal with screwed joint of high temperature resistant and high reliablity, top is sealed by O-ring to realize water route and oil circuit for bottom
Separation and sealing.
Conventional cylinder head fuel injector hole and water jacket are not connectivity structure as shown in Figure 1:, since cylinder head fuel injector hole is distributed around
There is entering and exhaust channel, arragement construction is compact；Therefore, this region water jacket circulation passage is narrow, as shown in Figure 3.Thus lead to water herein
It covers negotiability and cooling efficiency is not usually high, in discharge escalation process, cylinder cap is easy to cause cracking etc. to lose because of cooling deficiency
Effect, from core manufacturing craft, the circulation passage of water jacket is narrow, causes this region water jacket core model wall thickness thin, during group core
Be easy to appear fracture, it is damaged phenomena such as cause core model or cylinder cap rejection rate to rise.
The utility model cylinder cap penetrates through the region water jacket and oil injector hole, as shown in Fig. 2 finished figure, cylinder cap and water jacket
Transfixion part is separated by thin-walled metal bush, tightens+copper using screw thread in high-temperature area (cylinder cap bottom, close to combustion chamber side)
The mode of pad seals；Top is sealed using O-ring, efficiently separates water route, high-temperature gas and oil circuit.In casting technique, due to
Cancel the part wall thickness of oil injector hole, especially close high-temperature area, the available reinforcement of the sand core of water jacket in this region of cylinder cap, profile
Transition is gentle, as shown in Fig. 2 cylinder-cover blank schematic diagram, it is possible to reduce phenomena such as effectively reducing sand core fracture distress improves sand
The qualification rate of core and cylinder cap.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalents made based on the specification and figures of the utility model are applied directly or indirectly in relevant technical field,
It is also included in the patent protection scope of the utility model.
Claims (5)
1. a kind of compacted iron cylinder cover structure of novel high-strength thin-walled, it is characterised in that: including novel cylinder cap ontology, the cylinder cap sheet
Body, which is integrated, to be cast, the cylinder cap ontology application EN-GJV-450 vermicular graphite iron material, the cylinder cap integrated intake manifold
(13)；Cylinder cap ontology upper end is provided with oil injector hole (2), and the oil injector hole (2) runs through cylinder cap ontology, the cylinder cap sheet
It is provided with oil sprayer bushing (3) in vivo, oil sprayer bushing (3) two sides are provided with water jacket, and fuel injector is assemblied in the oil spout
In device bushing (3)；The cylinder cap ontology air inlet side is provided with high pressure fuel connecter hole (1), and the connecter hole (1) is for filling
With the high-tension connector for connecting fuel injector, air intake duct is provided in the cylinder cap ontology of high pressure fuel connecter hole (1) lower part
Import (5), the inlet manifold (13) of the cylinder cap Ontology integration of the Fighter Inlet (5) connection, on integrated intake manifold side wall
It is provided with inlet manifold sand cleaning hole (4).
2. the compacted iron cylinder cover structure of a kind of novel high-strength thin-walled according to claim 1, it is characterised in that: the fuel injector
Two part cavitys up and down, the cavity difference of oil injector hole (2) the upper end two sides are provided in the cylinder cap ontology of hole (2) two sides
For the first upper layer water jacket (7) and the second upper layer water jacket (9), first upper layer water jacket (7) is mutually interconnected with the second upper layer water jacket (9)
It is logical；The cavity of oil injector hole (2) the lower end two sides is respectively first lower layer's water jacket (6) and second lower layer's water jacket (8).
3. the compacted iron cylinder cover structure of a kind of novel high-strength thin-walled according to claim 1, it is characterised in that: the fuel injector
Hole (2) side wall is provided with fixing groove in a ring, oil sprayer bushing (3) corresponding position be provided with it is corresponding in a ring
Fixing groove, be provided with fixed rubber ring (10) in the fixing groove between the oil injector hole (2) and oil sprayer bushing (3).
4. the compacted iron cylinder cover structure of a kind of novel high-strength thin-walled according to claim 1, it is characterised in that: the fuel injector
Bushing (3) bottom is provided with threaded hole (12), and the oil sprayer bushing (3) connects by the way that threaded hole (12) and cylinder cap ontology are fixed
It connects.
5. the compacted iron cylinder cover structure of a kind of novel high-strength thin-walled according to claim 4, it is characterised in that: the fuel injector
Bushing (3) bottom is provided with copper packing (11), and the threaded hole (12) passes through copper packing (11) and is threadedly engaged with oil sprayer bushing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920055424.6U CN209604160U (en) | 2019-01-14 | 2019-01-14 | A kind of compacted iron cylinder cover structure of novel high-strength thin-walled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920055424.6U CN209604160U (en) | 2019-01-14 | 2019-01-14 | A kind of compacted iron cylinder cover structure of novel high-strength thin-walled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209604160U true CN209604160U (en) | 2019-11-08 |
Family
ID=68400594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920055424.6U Active CN209604160U (en) | 2019-01-14 | 2019-01-14 | A kind of compacted iron cylinder cover structure of novel high-strength thin-walled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209604160U (en) |
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2019
- 2019-01-14 CN CN201920055424.6U patent/CN209604160U/en active Active
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