CN203035285U - Diesel engine air valve - Google Patents
Diesel engine air valve Download PDFInfo
- Publication number
- CN203035285U CN203035285U CN 201320028831 CN201320028831U CN203035285U CN 203035285 U CN203035285 U CN 203035285U CN 201320028831 CN201320028831 CN 201320028831 CN 201320028831 U CN201320028831 U CN 201320028831U CN 203035285 U CN203035285 U CN 203035285U
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- air valve
- alloy steel
- diesel engine
- valve
- valve head
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- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The utility model discloses a diesel engine air valve. The diesel engine air valve comprises an air valve body. The air valve body comprises an air valve rod part and an air valve head part, the air valve rod part is made of wear resistance alloy steel, the air valve head part is made of high-temperature resistance alloy steel, the air valve rod part and the air valve head part are connected into a whole in a welding mode through friction welding, wherein the wear resistance alloy steel uses chrome-silicon series alloy steel, and the high-temperature resistance alloy steel uses chrome-manganese series alloy steel which has resistance to temperature higher than 1150 DGE C. According to the diesel engine air valve, a combined type structure is used, not only is the demand of high temperature resistance of the air valve head met, but also the demand of wear resistance of the air valve rod is met, and thus the service life of the diesel engine air valve is long.
Description
Technical field
The utility model relates to the diesel engine part technical field, relates in particular to a kind of diesel engine spiracle.
Background technique
Valve is the constituent element of burning chamber of diesel engine, is again the valve of gas turnover firing chamber, and it need bear huge impact load, and at high temperature works, and the valve head will bear the high temperature more than 1150 ℃.This abominable operating conditions requires valve should have enough rigidity, intensity, heat-resisting quantity and wear resistance.
At present, along with the raising of diesel engine strengthening degree, adopt the common valve of commaterial manufacturing can't satisfy the high temperature resistant and wear-resisting requirement that diesel engine spiracle should possess simultaneously.Anti-when this a kind of material of chromium Mn series alloy steel of high temperature is made valve more than 1150 ℃ when adopting, engine valve stem to-and-fro motion in the lower valve guide bushing of temperature is prone to cold short phenomenon, causes the engine valve stem fracture; When adopting this a kind of material of wear-resisting chromium-silicon system alloyed steel to make valve, the resistance to high temperature of this material can't satisfy the condition that the valve head bears temperature more than 1150 ℃, 14.5MPa pressure of explosion.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of diesel engine spiracle is provided, and this valve not only satisfies the high temperature resistant requirement of valve head but also satisfies the wear-resisting requirement of engine valve stem, the working life of improving whole valve.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of diesel engine spiracle, comprise the valve body, and described valve body comprises engine valve stem and valve head, described engine valve stem adopts wear-resisting alloy steel, and described valve head adopts high-temperature alloy steel; Described engine valve stem and described valve head are welded as a whole by friction welding.
As preferably, described wear-resisting alloy steel adopts the chromium-silicon system alloyed steel, and described high-temperature alloy steel adopts chromium Mn series alloy steel.
Because having adopted technique scheme, diesel engine spiracle of the present utility model is fabricated structure, its engine valve stem is wear-resisting alloy steel, and the valve head is high-temperature alloy steel, and engine valve stem and valve head are welded as a whole by friction welding; The requirement to the engine valve stem wear resistance has been satisfied in the to-and-fro motion in valve guide bushing of the engine valve stem of wear-resisting alloy steel material, and the valve head of high-temperature alloy steel material is at high temperature worked, and has satisfied the resistant to elevated temperatures requirement of valve head; Two kinds of different materials of engine valve stem and valve head are welded as a whole by friction welding, and with respect to traditional melting welding, friction welding has the advantage of quality of weld joint height, steady quality, high conformity, whole valve long service life.
Description of drawings
Fig. 1 is the utility model embodiment's structural representation;
Among the figure: the 1-engine valve stem; 2-valve head; The 3-weld.
Embodiment
Below in conjunction with drawings and Examples the utility model is done further nonrestrictive explanation.
As shown in Figure 1, be the utility model embodiment's diesel engine spiracle, comprise the valve body, this valve body comprises engine valve stem 1 and valve head 2, and engine valve stem 1 adopts wear-resisting alloy steel, and valve head 2 adopts high-temperature alloy steel; During production, utilize friction-welding machine that engine valve stem 1 and 2 friction weldings of valve head are one, namely make combined type diesel engine spiracle of the present utility model, adopt the mode of friction welding can guarantee weld 3 high conformities, joint quality height, valve long service life.
In the present embodiment, engine valve stem 1 used wear-resisting alloy steel adopts the chromium-silicon system alloyed steel, and the concrete trade mark, component and the content of chromium-silicon system alloyed steel are as shown in table 1; Valve head 2 used high-temperature alloy steels are the anti-chromium Mn series alloy steel of high temperature more than 1150 ℃, and the concrete trade mark, component and the content of chromium Mn series alloy steel are as shown in table 2.
Table 1
Table 2
Diesel engine spiracle of the present utility model because engine valve stem adopts the wear-resisting alloy steel material, has satisfied the requirement to the engine valve stem wear resistance; Because the valve head adopts the high-temperature alloy steel material, under the hot operation condition, has satisfied the resistant to elevated temperatures requirement of valve head; Owing to two kinds of different materials of engine valve stem and valve head are welded as a whole by friction welding, with respect to traditional melting welding, friction welding has the advantage of quality of weld joint height, steady quality, high conformity, the valve long service life.Diesel engine spiracle of the present utility model, its performance can satisfy the reinforcement diesel engine requirement of power per liter≤38kw/L.
The above only is giving an example of the utility model preferred embodiments, and the part of wherein not addressing in detail is those of ordinary skills' common practise.Protection domain of the present utility model is as the criterion with the content of claim, and any equivalent transformation that carries out based on technology enlightenment of the present utility model is also within protection domain of the present utility model.
Claims (2)
1. a diesel engine spiracle comprises the valve body, and described valve body comprises engine valve stem and valve head, it is characterized in that: described engine valve stem adopts wear-resisting alloy steel, and described valve head adopts high-temperature alloy steel; Described engine valve stem and described valve head are welded as a whole by friction welding.
2. a kind of diesel engine spiracle as claimed in claim 1 is characterized in that: described wear-resisting alloy steel employing chromium-silicon system alloyed steel, described high-temperature alloy steel employing chromium Mn series alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028831 CN203035285U (en) | 2013-01-19 | 2013-01-19 | Diesel engine air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028831 CN203035285U (en) | 2013-01-19 | 2013-01-19 | Diesel engine air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035285U true CN203035285U (en) | 2013-07-03 |
Family
ID=48687418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320028831 Expired - Lifetime CN203035285U (en) | 2013-01-19 | 2013-01-19 | Diesel engine air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035285U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507978A (en) * | 2015-12-15 | 2016-04-20 | 苏州爱盟机械有限公司 | Vehicle engine valve |
| CN107060934A (en) * | 2017-05-24 | 2017-08-18 | 崔旺林 | A kind of automobile engine inlet valve |
| CN109113827A (en) * | 2018-10-09 | 2019-01-01 | 广西玉柴机器股份有限公司 | Seal valve stem protecting jacket structure |
-
2013
- 2013-01-19 CN CN 201320028831 patent/CN203035285U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507978A (en) * | 2015-12-15 | 2016-04-20 | 苏州爱盟机械有限公司 | Vehicle engine valve |
| CN107060934A (en) * | 2017-05-24 | 2017-08-18 | 崔旺林 | A kind of automobile engine inlet valve |
| CN109113827A (en) * | 2018-10-09 | 2019-01-01 | 广西玉柴机器股份有限公司 | Seal valve stem protecting jacket structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |