CN209569084U - A kind of Ignition Natural Gas Engine spark plug mounting structure - Google Patents
A kind of Ignition Natural Gas Engine spark plug mounting structure Download PDFInfo
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- CN209569084U CN209569084U CN201920006964.5U CN201920006964U CN209569084U CN 209569084 U CN209569084 U CN 209569084U CN 201920006964 U CN201920006964 U CN 201920006964U CN 209569084 U CN209569084 U CN 209569084U
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Abstract
The utility model relates to technical field of engines, specifically a kind of Ignition Natural Gas Engine spark plug mounting structure, including cylinder head and the integrally formed spark plug of cylinder head install sheath；Spark plug mounting hole for installing spark plug is set in spark plug installation sheath, the spark plug installation sheath successively includes: the first segment connecting with spark-plug thread from bottom to top, the second section of nut cooperation is tightened with spark plug, the first segment of the third segment of ignition coil cooperation, the spark plug installation sheath is provided with counterbore.The utility model solves the easy cracking of spark plug tip by processing counter bore structure and eliminates the problems in stress collection, and reduces spark plug and be integrally formed the threaded engagement of installation sheath, the high temperature thread biting locking problem at this is avoided, spark plug installs screw thread position cooling effect more preferably；Sheath and cylinder head integrated formed structure are installed using spark plug, reduces manufacturing procedure, reduces costs.
Description
Technical field
The utility model relates to technical field of engines, specifically a kind of Ignition Natural Gas Engine spark plug installation knot
Structure.
Background technique
Ignition system is the very important component part in natural gas engine, mainly by ignition system control module,
Footmark disk, Hall sensor (engine speed/timing sensor), low-voltage cable, high-tension cable, ignition coil and spark plug etc.
Composition.Wherein spark plug is installed in cylinder head, due to cylinder head height it is larger and mostly all be rely on diesel engine be prototype into
Row improves, and spark plug installation site is very deep and need to prevent machine oil from entering spark plug mounting hole, and the method solved at present is substantially
Assembly light a fire using special lengthening spark plug and spark plug installation sheath.Spark plug operating condition is severe, service life compared with
It is short, belong to vulnerable part, and the quality of spark plug has very important effect the performance of complete machine, it is necessary to it regularly replaces.
Gas machine product currently on the market, the conventional use of ignition coil of most adapteds, high-voltage conducting wires etc., use is special
Lengthening spark plug, by spark plug install sheath be installed on gas machine, spark plug installation sheath include be threadedly coupled
Sheath upper body and sheath lower body, screw connection structure make the machine oil in cylinder head penetrate into spark along screw thread between the two
Plug installation sheath inner hole, impacts the normal work for lengthening spark plug.Although it is convenient to replace after lengthening spark plug damage,
Spark plug higher cost is lengthened, and the electrode material that lengthening spark plug uses is common nickel alloy, higher quality is nickel yttrium
Alloy, service life is short, and cost of upkeep is high.And such lengthening spark plug is compared with same electrode material standard type spark plug,
Service life is suitable, but price differs a lot of, and cost of upkeep is caused to greatly increase.As Chinese patent CN203707565U is disclosed
A kind of spark plug installs sheath, and conduit, sheath upper body and sheath lower body, conduit including sequential connection be threadedly connected to sheath
Upper the seam welds of the threaded ends of conduit and sheath upper body seal in vivo, conduit and the threaded ends of sheath upper body
Seam welds sealing.The utility model installs sheath by the way that spark plug is additionally arranged on cylinder body, equally causes cylinder body easy to crack,
Sheath with cylinder body easily kill at high temperature by screw thread, also there is the problem that wall unevenness is even.
Utility model content
The utility model provides a kind of Ignition Natural Gas Engine spark plug mounting structure, is protected by installing in spark plug
Cover lower end processing counterbore and setting be integrally formed spark plug and install sheath, solve spark plug installation screw thread be easy it is heated kill ask
Topic, spark plug install sheath uniform wall thickness, improve spark-plug thread position and the cooling effect at other positions.
The technical solution of the utility model is as follows: a kind of Ignition Natural Gas Engine spark plug mounting structure, including gas
Cylinder cap installs sheath with the integrally formed spark plug of cylinder head；Fire for installing spark plug is set in spark plug installation sheath
Flower plug mounting hole, the spark plug installation sheath successively includes: the first segment connecting with spark-plug thread from bottom to top, with fire
Hua Sai tightens the second section of nut cooperation, the third segment with ignition coil cooperation, the spark plug installation sheath
First segment is provided with counterbore.The easy cracking of spark plug tip, which is solved, by processing sink structure eliminates the problems in stress collection,
And reduce spark plug and be integrally formed the threaded engagement of installation sheath, avoids the high temperature thread biting locking problem at this, fire
Hua Sai installs screw thread position cooling effect more preferably；Sheath and cylinder head integrated formed structure are installed using spark plug, reduces and adds
Work process, reduces costs, will not due to being deformed by cooling thermal impact with occur joint gap between cylinder head, sealing can
It is unaffected by property, avoid the coolant liquid leakage problems using spark plug bushing.
Preferably, the counterbore upper surface is not higher than water channel horizontal position.
Preferably, the counterbore upper surface is flushed with water channel horizontal position.
Preferably, the spark plug installation sheath is ladder circle columnar structures, and spark plug installation sheath is integrated with cylinder body
Molding structure avoids the need for additional processing and installation spark plug installation sheath, therefore also avoids the maintenance of subsequent sheath.
The effect that the utility model reaches: 1, spark plug tip easy cracking is solved by processing sink structure and eliminates stress
The problems in collection, and reduce spark plug and be integrally formed the threaded engagement of installation sheath, avoid the high temperature screw thread at this
Problem is killed, spark plug installs screw thread position cooling effect more preferably.
2, sheath and cylinder head integrated formed structure are installed using spark plug, directly in cylinder head processing spark plug installation knot
Structure reduces manufacturing procedure, reduces costs, will not due to being deformed by cooling thermal impact with connect between cylinder head
Gap, sealing reliability is unaffected, avoids the coolant liquid leakage problems using spark plug bushing.
Detailed description of the invention
Fig. 1 is that a kind of cross-section structure of Ignition Natural Gas Engine spark plug mounting structure described in the utility model shows
It is intended to.
Fig. 2 is that a kind of Ignition Natural Gas Engine spark plug mounting structure described in the utility model is installed in spark plug
Structural schematic diagram afterwards.
Fig. 3 is that a kind of Ignition Natural Gas Engine spark plug mounting structure described in the utility model is looking up structure
Figure.
Fig. 4 is counterbore in a kind of Ignition Natural Gas Engine spark plug mounting structure embodiment described in the utility model
Cross-sectional view.
Fig. 5 is a kind of another embodiment of Ignition Natural Gas Engine spark plug mounting structure described in the utility model
Counterbore cross-sectional view.
In figure: 1, cylinder head；2, spark plug installs sheath；3, spark plug mounting hole；301, first segment；302, the second section
Section；303, third segment；4, water channel；5, spark plug；6, counterbore.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description:
As shown in Figure 1-Figure 3, a kind of Ignition Natural Gas Engine spark plug mounting structure, including cylinder head 1 and cylinder
The integrally formed spark plug of lid 1 installs sheath 2；Setting is installed for installing the spark plug of spark plug 5 in spark plug installation sheath 2
Hole 3, the spark plug installation sheath 2 successively includes: the first segment 301 connecting with spark-plug thread from bottom to top, with spark
Plug tightens the second section 302 of nut cooperation, the third segment 303 with ignition coil cooperation, the spark plug installation shield
The first segment 301 of set 2 is provided with counterbore 6.
As shown in figure 4, being flushed below 6 upper surface of counterbore and water channel 4.6 position of counterbore moves up, so that the electricity of spark plug
Pole position moves up preferred closer to the left and right sides, and the counterbore 6 is arranged in first segment corresponding with spark plug mounting hole 3
At 301, be conducive to optimize spark plug installation sheath, the water channel for more tending to approach the left and right sides is conducive to the heat dissipation of high temperature spark plug.
As Figure 1-Figure 2, the spark plug installation sheath 2 is ladder circle columnar structures, and spark plug installs sheath 2 and cylinder
Body is an integral molding structure, and avoids the need for additional processing and installation spark plug installation sheath 2, therefore also avoid subsequent sheath
Maintenance.
In another embodiment, as shown in figure 5,6 upper surface of the counterbore is lower than 4 horizontal position of water channel, the spiral shell of spark plug
Line linkage section is conducive to the threaded connection section of cooling spark plug close to cooling jacket at this time, improves the cooling effect of high temperature screw thread
Fruit.
Claims (3)
1. a kind of Ignition Natural Gas Engine spark plug mounting structure, including cylinder head (1) and cylinder head (1) are integrally formed
Spark plug install sheath (2)；Spark plug mounting hole for installing spark plug (5) is set in spark plug installation sheath (2)
(3), it is characterised in that: spark plug installation sheath (2) successively includes: the first segment connecting with spark-plug thread from bottom to top
Section (301) tightens the second section (302) of nut cooperation with spark plug, the third segment (303) with ignition coil cooperation, institute
The first segment (301) for stating spark plug installation sheath (2) is provided with counterbore (6).
2. a kind of Ignition Natural Gas Engine spark plug mounting structure according to claim 1, it is characterised in that: described
It is flushed below counterbore (6) upper surface and water channel (4).
3. a kind of Ignition Natural Gas Engine spark plug mounting structure according to claim 1, it is characterised in that: described
It is ladder circle columnar structures that spark plug, which installs sheath (2),.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920006964.5U CN209569084U (en) | 2019-01-03 | 2019-01-03 | A kind of Ignition Natural Gas Engine spark plug mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920006964.5U CN209569084U (en) | 2019-01-03 | 2019-01-03 | A kind of Ignition Natural Gas Engine spark plug mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209569084U true CN209569084U (en) | 2019-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920006964.5U Active CN209569084U (en) | 2019-01-03 | 2019-01-03 | A kind of Ignition Natural Gas Engine spark plug mounting structure |
Country Status (1)
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| CN (1) | CN209569084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020140484A1 (en) * | 2019-01-03 | 2020-07-09 | 广西玉柴机器股份有限公司 | Novel cylinder head of natural gas engine |
-
2019
- 2019-01-03 CN CN201920006964.5U patent/CN209569084U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020140484A1 (en) * | 2019-01-03 | 2020-07-09 | 广西玉柴机器股份有限公司 | Novel cylinder head of natural gas engine |
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