CN204041258U - A kind of high strength cylinder cover for diesel engine - Google Patents
A kind of high strength cylinder cover for diesel engine Download PDFInfo
- Publication number
- CN204041258U CN204041258U CN201420361118.2U CN201420361118U CN204041258U CN 204041258 U CN204041258 U CN 204041258U CN 201420361118 U CN201420361118 U CN 201420361118U CN 204041258 U CN204041258 U CN 204041258U
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- CN
- China
- Prior art keywords
- hole portion
- exhaust port
- inlet hole
- hole
- reinforcing part
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- 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
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Abstract
The utility model discloses a kind of high strength cylinder cover for diesel engine, comprise matrix, firing chamber, inlet hole and exhaust port is provided with in matrix, firing chamber is communicated with inlet hole, exhaust port, inlet hole is adjacent with exhaust port, and described matrix is Nodular cast iron material, and its inlet hole and exhaust port include the first hole portion and the second hole portion, first hole portion and combustion chamber, the second hole portion is connected with the first hole portion; Strengthening sleeve sleeve interference fit holding are on the sidewall in the second hole portion and the first hole portion.It adopts Nodular cast iron material to make, its heat resistance, wear resistance, mechanicalness, anti-fatigue performance is remarkable, simultaneously, the nichrome casting infiltration layer that it is coated with considerably increases anti-corrosion effects, strengthen the performance of cylinder head, and in its inlet hole and exhaust port, strengthening sleeve is set makes both communicate to prevent the sidewall between inlet hole with exhaust port from rupturing, cylinder head was lost efficacy.
Description
Technical field:
The utility model belongs to Diesel Engine Technique Field, particularly relates to a kind of high-power marine high strength cylinder cover for diesel engine.
Background technique:
Cylinder head is one of important spare part on internal-combustion engine, is extensively present in the diesel engine of all kinds of different size, petrol engine structure.Wherein large-scale marine diesel engine due to power comparatively large, high to the requirement of strength of cylinder body, usually adopt cast iron or cast steel.Because large-scale marine engine works usually under lake and maritime climate environment, cast iron or cast steel are working under the mal-conditions such as seawater and high temperature, high humidity, high smog, high sunshine, happen occasionally because corroding the destruction of causing.For cylinder head, particularly at the position such as gas exhaust piping, firing chamber of work under bad environment, wall directly contacts with high temperature, high pressure and corrosive gas, higher requirement is all had to the high-temperature behavior at these positions and decay resistance, very easily lost efficacy in Long-Time Service process, the reliability of cylinder cap part and working life are all a greater impact.
And wherein the inlet hole of cylinder head and exhaust port are adjacent, if its sidewall is between the two the most crisp part, easily there is crack for a long time when deployed, produce fracture.
Model utility content:
The purpose of this utility model is exactly the deficiency for prior art, and a kind of high strength cylinder cover for diesel engine is provided, it adopts Nodular cast iron material to make, its heat resistance, wear resistance, mechanicalness, anti-fatigue performance is remarkable, simultaneously, the nichrome casting infiltration layer that it is coated with considerably increases anti-corrosion effects, strengthen the performance of cylinder head, and in its inlet hole and exhaust port, strengthening sleeve is set makes both communicate to prevent the sidewall between inlet hole with exhaust port from rupturing, cylinder head was lost efficacy.
Technology solution of the present utility model is as follows:
A kind of high strength cylinder cover for diesel engine, comprise matrix, firing chamber, inlet hole and exhaust port is provided with in matrix, firing chamber is communicated with inlet hole, exhaust port, inlet hole is adjacent with exhaust port, and described matrix is Nodular cast iron material, and its inlet hole and exhaust port include the first hole portion and the second hole portion, first hole portion and combustion chamber, the second hole portion is connected with the first hole portion;
Strengthening sleeve sleeve interference fit holding are on the sidewall in the second hole portion and the first hole portion.
The diameter in described second hole portion is less than the diameter in the first hole portion, and strengthening sleeve is made up of the first reinforcing part and the second reinforcing part, and the bottom of the first reinforcing part is connected with the top of the second reinforcing part;
First reinforcing part sleeve interference fit holding are on the inwall in the first hole portion, and the second reinforcing part sleeve interference fit holding are on the inwall in the second hole portion.
The outer lower end face of the first reinforcing part of described strengthening sleeve forms annular groove, and copper ring is nested in annular groove, and the outer lower end face of the first reinforcing part is pressed against on the bottom end in the first hole portion.
The madial wall of described inlet hole and exhaust port is coated with nichrome and casts infiltration layer, strengthening sleeve is stainless steel cover.
The internal chamber wall of described firing chamber is coated with nichrome casting infiltration layer.
The beneficial effects of the utility model are:
1, it adopts Nodular cast iron material to make, its heat resistance, wear resistance, mechanicalness, anti-fatigue performance is remarkable, simultaneously, the nichrome casting infiltration layer that it is coated with considerably increases anti-corrosion effects, strengthen the performance of cylinder head, and in its inlet hole and exhaust port, strengthening sleeve is set makes both communicate to prevent the sidewall between inlet hole with exhaust port from rupturing, cylinder head was lost efficacy.
2, its copper ring can ensure the sealing between the madial wall of strengthening sleeve and inlet hole, exhaust port, plays seal action.
Accompanying drawing illustrates:
Fig. 1 is the utility model is the structural representation installing strengthening sleeve
Fig. 2 is the partial sectional view between inlet hole of the present utility model and exhaust port.
Embodiment:
Embodiment: see shown in Fig. 1 to 2, a kind of high strength cylinder cover for diesel engine, comprise matrix 10, be provided with firing chamber 1, inlet hole 2 and exhaust port 3 in matrix 10, firing chamber 1 is communicated with inlet hole 2, exhaust port 3, and inlet hole 2 is adjacent with exhaust port 3, described matrix 10 is Nodular cast iron material, its inlet hole 2 and exhaust port 3 include the first hole portion 4 and the second hole portion 4 of hole portion 5, first is connected with firing chamber 1, and the second hole portion 5 is connected with the first hole portion 4;
Strengthening sleeve 6 sleeve interference fit holding are on the sidewall in the second hole portion 5 and the first hole portion 4.
The diameter in described second hole portion 5 is less than the diameter in the first hole portion 4, and strengthening sleeve 6 is made up of the first reinforcing part 61 and the second reinforcing part 62, and the bottom of the first reinforcing part 61 is connected with the top of the second reinforcing part 62;
First reinforcing part 61 sleeve interference fit holding are on the inwall in the first hole portion 4, and the second reinforcing part 62 sleeve interference fit holding are on the inwall in the second hole portion 62.
The outer lower end face of the first reinforcing part 61 of described strengthening sleeve 6 forms annular groove 63, copper ring 7 is nested in annular groove 63, the outer lower end face of the first reinforcing part 61 is pressed against on the bottom end in the first hole portion 4, the Packed effect of copper ring 7 tool, it can by the sealing gap between strengthening sleeve 6 and inlet hole 2, exhaust port 3.
The madial wall of described inlet hole 2 and exhaust port 3 is coated with nichrome and casts infiltration layer 20, strengthening sleeve 6 is stainless steel cover.
The internal chamber wall of described firing chamber 1 is coated with nichrome casting infiltration layer 20.
Wherein, nichrome casting infiltration layer 20 adopts technology of infiltration casting to be formed in casting process: in parts modeling process, cylinder cap inner chamber causes by core, in the whose surfaces forming exhaust port 3, inlet hole 2 and position, firing chamber 1, coating is oozed in the casting that coating one deck is formed primarily of the composite particles of nichrome coated Si/C ceramic surface, Bond, solvent and alcohol or water etc., in cast cooling procedure, molten metal permeates and alloying action coating under pressure and diffusion, solidifies rear final formation casting infiltration layer.Its concrete mode has been known content in the technician of the industry, is not described in detail.
Claims (5)
1. a high strength cylinder cover for diesel engine, comprise matrix (10), firing chamber (1) is provided with in matrix (10), inlet hole (2) and exhaust port (3), firing chamber (1) and inlet hole (2), exhaust port (3) is communicated with, inlet hole (2) is adjacent with exhaust port (3), it is characterized in that: described matrix (10) is Nodular cast iron material, its inlet hole (2) and exhaust port (3) include the first hole portion (4) and the second hole portion (5), first hole portion (4) is connected with firing chamber (1), second hole portion (5) is connected with the first hole portion (4),
Strengthening sleeve (6) sleeve interference fit holding are on the sidewall of the second hole portion (5) with the first hole portion (4).
2. a kind of high strength cylinder cover for diesel engine according to claim 1, it is characterized in that: the diameter in described second hole portion (5) is less than the diameter in the first hole portion (4), strengthening sleeve (6) is made up of the first reinforcing part (61) and the second reinforcing part (62), and the bottom of the first reinforcing part (61) is connected with the top of the second reinforcing part (62);
First reinforcing part (61) sleeve interference fit holding are on the inwall in the first hole portion (4), and the second reinforcing part (62) sleeve interference fit holding are on the inwall in the second hole portion (62).
3. a kind of high strength cylinder cover for diesel engine according to claim 2, it is characterized in that: the outer lower end face of first reinforcing part (61) of described strengthening sleeve (6) forms annular groove (63), copper ring (7) is nested in annular groove (63), and the outer lower end face of the first reinforcing part (61) is pressed against on the bottom end in the first hole portion (4).
4. a kind of high strength cylinder cover for diesel engine according to claim 1, it is characterized in that: the madial wall of described inlet hole (2) and exhaust port (3) is coated with nichrome and casts infiltration layer (20), strengthening sleeve (6) is stainless steel cover.
5. a kind of high strength cylinder cover for diesel engine according to claim 1, is characterized in that: the internal chamber wall of described firing chamber (1) is coated with nichrome casting infiltration layer (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420361118.2U CN204041258U (en) | 2014-07-01 | 2014-07-01 | A kind of high strength cylinder cover for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420361118.2U CN204041258U (en) | 2014-07-01 | 2014-07-01 | A kind of high strength cylinder cover for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041258U true CN204041258U (en) | 2014-12-24 |
Family
ID=52241930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420361118.2U Expired - Fee Related CN204041258U (en) | 2014-07-01 | 2014-07-01 | A kind of high strength cylinder cover for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204041258U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240145A (en) * | 2015-11-02 | 2016-01-13 | 重庆金花玻璃钢有限公司 | Wearproof engine cylinder cover |
| CN111520250A (en) * | 2020-03-31 | 2020-08-11 | 潍柴动力股份有限公司 | Chilling block, cylinder cover with chilling block and engine with chilling block |
-
2014
- 2014-07-01 CN CN201420361118.2U patent/CN204041258U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240145A (en) * | 2015-11-02 | 2016-01-13 | 重庆金花玻璃钢有限公司 | Wearproof engine cylinder cover |
| CN111520250A (en) * | 2020-03-31 | 2020-08-11 | 潍柴动力股份有限公司 | Chilling block, cylinder cover with chilling block and engine with chilling block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20150701 |
|
| EXPY | Termination of patent right or utility model |