CN207554215U - A kind of spark plug sealing device for gas engine - Google Patents
A kind of spark plug sealing device for gas engine Download PDFInfo
- Publication number
- CN207554215U CN207554215U CN201721495848.1U CN201721495848U CN207554215U CN 207554215 U CN207554215 U CN 207554215U CN 201721495848 U CN201721495848 U CN 201721495848U CN 207554215 U CN207554215 U CN 207554215U
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- gas engine
- sleeve
- spark plug
- cylinder head
- rubber ring
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Abstract
The utility model discloses a kind of spark plug sealing device for gas engine, the first sealing rubber ring is equipped between the one end of bushing and gas engine cylinder head, be equipped with the second sealing rubber ring between the other end of bushing and gas engine cylinder head, the settings of two sealing rings can in anti-water-baffling sleeve cooling water leakage.Sleeve is equipped with spring, third sealing rubber ring is equipped between spring base and cylinder cover for gas engine shell inner wall, third sealing rubber ring prevents lubricating oil leakage to the outside of cylinder head cover housing, and is easily installed and dismantles.Original cylinder head cover housing is borrowed in the utility model, realizes the sealing of spark plug room, related components change less, and realization is general with parts and components of diesel engine, and sealing effect is good, and integral strength is high, and compression is unlikely to deform.
Description
Technical field
The utility model is related to a kind of spark plug sealing device for gas engine.
Background technology
Current gas machine peculiar to vessel is generally reseted on former diesel engine, former fuel injector position be changed to installation spark plug and
High-voltage line, spark plug are the high voltage pulse discharge of electricity that high-voltage conducting wires are sent, and two interelectrode air of disruptive spark plug generates electricity
Spark is ignited the mixed gas in cylinder with this.Chinese patent CN201020699650.7, patent name are：Gas engine fire
Flower plug sealing device, the spark plug sealing device for gas engine of the structure include being sealingly mounted in gas engine cylinder head
Spark plug bushing and compress spark plug bushing pressing sleeve.Plug sealing device makes spark plug be in a sealed environment
In, avoid leak.The plug sealing device that this type uses, not by the oil pocket above spark plug room and cylinder head
（Cavaera）It is separated, it is impossible to the indoor lubricating oil of valve be avoided to enter spark plug room.In addition the sealing knot that this type uses
Structure is interference fitted to be used below spark plug bushing with cylinder head, to requirement on machining accuracy height.During high load capacity, copper sheathing easily occurs
Adhesion.
Utility model content
The technical problems to be solved in the utility model is in view of the foregoing drawbacks, to provide a kind of spark plug for natural gas engine sealing
Device, the spark plug sealing device for gas engine are convenient for the positioning of air valve bridge, avoid swinging by a small margin during air valve bridge downlink.
In order to solve the above technical problems, the utility model includes gas engine cylinder head and cylinder cover for gas engine
Shell is equipped with bushing in gas engine cylinder head, is structurally characterized in that：The one end of the bushing and gas engine cylinder
The first sealing rubber ring is equipped between lid, the second fluid sealant is equipped between the other end of the bushing and gas engine cylinder head
Circle, the end face of the other end of the bushing are equipped with the pressure cap that can compress bushing, and combustion can be stretched out by being equipped with inside the pressure cap
The sleeve of gas engine air cylinder cap shell, the sleeve be equipped with chuck and with the spaced spring base of chuck, chuck and bullet
It is equipped between spring abutment and is sleeved on spring on sleeve, the is equipped between the spring base and cylinder cover for gas engine shell inner wall
Three sealing rubber rings.
The pressure cap is tubular, and pressure cap is screwed onto in gas engine cylinder head.
The one end of the sleeve is equipped with the inserting paragraph that coordinates with pressure cap inner wall, the outer wall of inserting paragraph and the inner wall of pressure cap it
Between be equipped with the 4th sealing rubber ring.
The sleeve is equipped with annular convex platform, and wedge-shaped locating ring is equipped between annular convex platform and the end face of pressure cap.
The spring base includes being fixed in cross bar on sleeve outer wall and vertical with sleeve, and the end of cross bar is connected with and horizontal stroke
The vertical montant of bar, between montant and sleeve outer wall formed can fixed spring space.
The third sealing rubber ring is arranged between cross bar and cylinder cover for gas engine shell inner wall.
The utility model has the following advantages compared with prior art：The one end of bushing and gas engine cylinder head it
Between be equipped with the first sealing rubber ring, between the other end of bushing and gas engine cylinder head be equipped with the second sealing rubber ring, two is close
The setting of seal can in anti-water-baffling sleeve cooling water leakage.
Sleeve is equipped with spring, and third sealing rubber ring is equipped between spring base and cylinder cover for gas engine shell inner wall,
The third sealing rubber ring of the structure prevents lubricating oil leakage to the outside of cylinder head cover housing, and be easily installed by spring compression
And dismounting.Spring is in compressive state when installing, and third sealing rubber ring is compressed by spring by spring base, for elasticity even
It connects, is under different operating modes and temperature condition excellent sealing can be achieved in this way.Original cylinder head is borrowed in the utility model
Case realizes the sealing of spark plug room, and related components change less, and realization is general with parts and components of diesel engine, and sealing effect
Good, integral strength is high, and compression is unlikely to deform.
Description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
Spark plug sealing device for gas engine as shown in Figure 1 starts including gas engine cylinder head 11 and combustion gas
Machine cylinder head cover housing 12 is equipped with bushing 7 in gas engine cylinder head 11, between bushing 7 and gas engine cylinder head 11
Installation, which is matched, is combined into clearance fit.The first sealing rubber ring 6, lining are equipped between the one end of bushing 7 and gas engine cylinder head 11
The second sealing rubber ring 8 is equipped between the other end of set 7 and gas engine cylinder head 11, the setting of two sealing rings can prevent
The leakage of cooling water in water jacket.The end face of the other end of bushing 7 is equipped with the pressure cap 5 that can compress bushing 7, is pressed in the present embodiment
Cap 5 is tubular, and pressure cap 5 is screwed onto in gas engine cylinder head 11, and it is more firm that the mounting means of this structure installs pressure cap 5
Gu it is not easy to loosen.As shown in Figure 1, the sleeve 4 that can stretch out cylinder cover for gas engine shell 12, sleeve are installed inside pressure cap 5
4 are equipped with annular convex platform 42, and wedge-shaped locating ring 10 is equipped between annular convex platform 42 and the end face of pressure cap 5, which is easy to implement
Connection between sleeve 4 and pressure cap 5.As shown in Figure 1, the one end of sleeve 4 is equipped with the inserting paragraph 41 coordinated with 5 inner wall of pressure cap,
The 4th sealing rubber ring 9 is equipped between the outer wall of inserting paragraph 41 and the inner wall of pressure cap 5, the 4th sealing rubber ring 9 can separate cavaera
With spark plug room, prevent the indoor machine oil of valve from entering spark plug room.As shown in Figure 1, sleeve 4 is equipped with chuck and between chuck
Every the spring base 2 of setting, the spring 3 being sleeved on sleeve 4 is equipped between chuck and spring base 2, spring base 2 wraps in the present embodiment
It includes and is fixed on 4 outer wall of sleeve and the cross bar vertical with sleeve 4, the end of cross bar are connected with the montant vertical with cross bar, montant
Between 4 outer wall of sleeve formed can fixed spring 3 space.As shown in Figure 1, spring base 2 and cylinder cover for gas engine shell
Third sealing rubber ring 1 is equipped between 12 inner walls, third sealing rubber ring 1 is arranged in cross bar and cylinder cover for gas engine shell 12
Between wall, the third sealing rubber ring 1 of the structure is compressed by spring 3, prevents lubricating oil leakage to the outside of cylinder head cover housing 12, and
And it is easily installed and dismantles.Spring 3 is in compressive state when installing, and compresses third sealing rubber ring 1 by spring base 2, i.e.,
Third sealing rubber ring 1 is compressed by spring 3 by spring base 2 in the present embodiment, is elastic connection, is different operating modes and temperature in this way
Excellent sealing can be achieved under the conditions of degree.Original cylinder head cover housing is borrowed in the present embodiment, realizes the sealing of spark plug room, it is related
Parts change less, and realization is general with parts and components of diesel engine, and sealing effect is good, and integral strength is high, and compression is unlikely to deform.
The above is the specific constructive form of the utility model, and the present utility model is not limited to the above embodiments.
Claims (6)
1. a kind of spark plug sealing device for gas engine, including gas engine cylinder head（11）With gas engine cylinder head
Case（12）, gas engine cylinder head（11）On bushing is installed（7）, it is characterized in that：The bushing（7）One end and combustion
Gas engine cylinder cap（11）Between be equipped with the first sealing rubber ring（6）, the bushing（7）The other end and gas engine gas
Cylinder cap（11）Between be equipped with the second sealing rubber ring（8）, the bushing（7）The other end end face be equipped with can compress bushing
（7）Pressure cap（5）, the pressure cap（5）Inside, which is equipped with, can stretch out cylinder cover for gas engine shell（12）Sleeve（4）, institute
State sleeve（4）Be equipped with chuck and with the spaced spring base of chuck（2）, chuck and spring base（2）Between be equipped be sleeved on
Sleeve（4）On spring（3）, the spring base（2）With cylinder cover for gas engine shell（12）It is close that third is equipped between inner wall
Sealing rubber ring（1）.
2. spark plug sealing device for gas engine according to claim 1, it is characterized in that：The pressure cap（5）For tubular,
Pressure cap（5）It is screwed onto gas engine cylinder head（11）On.
3. spark plug sealing device for gas engine according to claim 2, it is characterized in that：The sleeve（4）One end
Portion is equipped with and pressure cap（5）The inserting paragraph of inner wall cooperation（41）, inserting paragraph（41）Outer wall and pressure cap（5）Inner wall between be equipped with the
Four sealing rubber rings（9）.
4. spark plug sealing device for gas engine according to claim 3, it is characterized in that：The sleeve（4）It is equipped with
Annular convex platform（42）, annular convex platform（42）With pressure cap（5）End face between be equipped with wedge-shaped locating ring（10）.
5. spark plug sealing device for gas engine according to claim 1, it is characterized in that：The spring base（2）Including
It is fixed in sleeve（4）On outer wall and and sleeve（4）Vertical cross bar, the end of cross bar are connected with the montant vertical with cross bar, erect
Bar and sleeve（4）Being formed between outer wall can fixed spring（3）Space.
6. spark plug sealing device for gas engine according to claim 5, it is characterized in that：The third sealing rubber ring
（1）It is arranged on cross bar and cylinder cover for gas engine shell（12）Between inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721495848.1U CN207554215U (en) | 2017-11-10 | 2017-11-10 | A kind of spark plug sealing device for gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721495848.1U CN207554215U (en) | 2017-11-10 | 2017-11-10 | A kind of spark plug sealing device for gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554215U true CN207554215U (en) | 2018-06-29 |
Family
ID=62682779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721495848.1U Active CN207554215U (en) | 2017-11-10 | 2017-11-10 | A kind of spark plug sealing device for gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320654A (en) * | 2021-12-09 | 2022-04-12 | 中国北方发动机研究所(天津) | Spark plug sealing device of gas engine |
-
2017
- 2017-11-10 CN CN201721495848.1U patent/CN207554215U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320654A (en) * | 2021-12-09 | 2022-04-12 | 中国北方发动机研究所(天津) | Spark plug sealing device of gas engine |
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