CN201318242Y - Spark plug spacer - Google Patents
Spark plug spacer Download PDFInfo
- Publication number
- CN201318242Y CN201318242Y CNU2008202303615U CN200820230361U CN201318242Y CN 201318242 Y CN201318242 Y CN 201318242Y CN U2008202303615 U CNU2008202303615 U CN U2008202303615U CN 200820230361 U CN200820230361 U CN 200820230361U CN 201318242 Y CN201318242 Y CN 201318242Y
- Authority
- CN
- China
- Prior art keywords
- spacer
- spark plug
- cylinder head
- copper sheathing
- end surface
- Prior art date
- 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 - Lifetime
Links
- 125000006850 spacer group Chemical group 0.000 title claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 239000003345 natural gas Substances 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 24
- 229910052802 copper Inorganic materials 0.000 description 23
- 239000010949 copper Substances 0.000 description 23
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Images
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
A spark plug spacer sleeve is characterized in that the spacer sleeve (8) is a hollow cylinder, an external thread is arranged on the outer wall of the spacer sleeve (8) corresponding to an internal thread hole (6) above a cylinder cover water jacket (4), and a polygonal counter bore (11) is arranged on the end face of one end provided with the external thread. The installation is convenient, the stability and the sealing performance are good, the heat dissipation and cooling effects are good, and the use and maintenance cost is extremely low. It is suitable for various automobile engines, especially natural gas engines.
Description
Technical field
The utility model relates to the obturator in a kind of engine spark plug seat hole, is meant a kind of spark plug spacer that is used for natural gas engine spark plug adapter hole specifically.
Background technique
Demand to the high-power natural gas engine is especially strong in the market; Meanwhile, along with continuing to increase of engine power, require the structure of motor also more compact simultaneously.But in four valve natural gas engine design processes, the installation of spark plug is a difficult problem, because spark plug must mid-installation.The installation requirement head of spark plug commonly used is fixed with screw thread, adopts the sealing gasket sealing.If inlay copper sheathing in spark-plug hole, can't be on the cylinder head base plate direct tapping, spark plug is pressed in the distortion that can cause copper sheathing on the copper sheathing simultaneously, repeatedly dismantling, change spark plug also can influence the copper sheathing sealing effect.If inlay the direct cast form in copper sheathing place in spark-plug hole, then certainly will reduce the space of water jacket, totally unfavorable to the cooling in bridge of the nose district, bring difficulty for simultaneously the casting sand removal.
On the copper sheathing mounting technique in existing automobile engine spark plug seat hole, in order to cast the convenience of sand removal, water jacket layout and oil sprayer cooling, cylinder head bore adopts the damascene copper nested structure usually.As shown in Figure 1, with special-purpose press mounting tool copper sheathing 3 is pressed in spark plug or the oil injector hole 1, then 5 places, roll extrusion copper sheathing cylndrical surface make copper sheathing 3 and cylinder head fluid-tight engagement, between blanket gas cylinder cap water jacket 4 and spark plug or the oil injector hole 1; Seal ring 2 effects of copper sheathing 3 upper ends are between sealed water jacket 4 and spark plug or the oil injector hole 1 equally, guarantee that the cooling liquid in the water jacket 4 can not leak on spark plug or the oil injector hole 1.So there is following some deficiency at least in above-mentioned existing copper sheathing technological scheme:
1. the cost height that uses and keep in repair: copper sheathing is owing to be to use expensive copper to process, and is disposable, thus use and the cost that keeps in repair than higher;
2. install inconvenient: the structure of copper sheathing is of the same size cylindric up and down, and it is to adopt the technological means that directly press-fits that copper sheathing is inlayed in spark-plug hole, so, needs special press mounting tool, simultaneously to the press-loading device Capability Requirement than higher.
3. maintenance is inconvenient: the installation of copper sheathing adopts technology of pressure mounting to finish, can not reuse, so, disassemble or assemble again during maintenance.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiency of above-mentioned copper sheathing structure, provides that a kind of cost is low, rational in infrastructure, easy for installation, the spark plug spacer of good seal performance and heat radiation and good cooling results.
For realizing above-mentioned technical purpose, the technical solution adopted in the utility model is: a kind of spark plug spacer, described spacer is the cylindrical shell of hollow, interior threaded hole above corresponding cylinder head jacket on the outer wall of spacer is provided with outside thread, and the end face that is provided with outside thread one end is provided with polygonal counterbore.
Corresponding cylinder head jacket is provided with groove on the described spacer.
The lower end surface of described spacer is that plane or lower end surface are provided with zigzag fashion or wave-shaped trench.
Described spacer adopts steel or stainless steel to make.
Counterbore on the described spacer is quadrangle, hexagon or dodecagon.
By technique scheme, the beneficial effects of the utility model are:
1. outer wall of the present utility model is provided with worm structure, and is easy for installation, and firm performance is good, can adopt sealing compound to seal good seal performance;
2. the utility model is provided with the counterbore of four jiaos, interior hexagonal or interior 12 corner structures, only needs to use a common setting tool to get final product, and is easy for installation;
3. outer wall of the present utility model is provided with groove, and the space of cylinder head jacket increases relatively, and bridge of the nose district water cycle situation is improved, heat radiation and good cooling results;
4. the utility model adopts common steel or stainless steel material to make, and in use can exchange, and use and maintenance cost are extremely low.Be suitable for various motor car engines, particularly natural gas engine uses.
Description of drawings
Fig. 1 is the scheme of installation of conventional diesel oil injector hole copper sheathing;
Fig. 2 is the scheme of installation of the utility model spacer 8;
Fig. 3 is the structural representation of the utility model spacer 8;
Fig. 4 is the plan view of Fig. 3.
Among the figure: spark-plug hole 1, the seal ring 2 of copper sheathing upper end, copper sheathing 3, cylinder head jacket 4, copper sheathing cylndrical surface 5, interior threaded hole 6, cylinder head base plate plane 7, spacer 8, groove 9, lower end surface 10, counterbore 11.
Embodiment
Below in conjunction with accompanying drawing and specific implementation process the utility model is described in further details.
As Fig. 2, Fig. 3, shown in Figure 4, a kind of spark plug spacer of the present utility model, described spacer 8 is the cylindrical shell of hollow, and the interior threaded hole 6 above corresponding cylinder head jacket 4 on the outer wall of spacer 8 is provided with outside thread, and the end face that is provided with outside thread one end is provided with polygonal counterbore 11.
The effect of spacer 8 mainly is the spark plug mounting hole that sealing cylinder covers, and prevents that the cooling liquid of cylinder head jacket 4 from leaking into spark plug mounting hole, guarantees the proper functioning of spark plug.Corresponding cylinder head jacket 4 is provided with groove 9 on the described spacer 8, and the setting of groove 9 has reduced the wall thickness of spacer 8, and the space of cylinder head jacket 4 is increased relatively, also helps improving radiating effect.Described spacer 8 can adopt steel or stainless steel to make.Used cost of material is lower, and intensity and thermal conductivity are higher, can satisfy usage requirement.In order to prevent not press tightly because of 10 part areas, lower end surface of spacer that machining error causes 8, thereby influence sealing effect, therefore, the lower end surface 10 of described spacer 8 is provided with zigzag fashion or wave-shaped trench for plane or lower end surface 10.
During use: circular hole place machining internal thread 6 above cylinder head lower water jacket 4 earlier is used for fixing spacer 8.Central hole machining internal thread below cylinder head lower water jacket 4 is used to tighten spark plug.On the outside thread of the lower end surface 10 of spacer 8 and spacer 8, apply the refractory seal agent then, select for use corresponding setting tool to insert in the counterbore 11 on the spacer 8 again, be screwed down spacer 8, be pressed on the cylinder head base plate plane 7 until the lower end surface 10 of spacer 8.For guaranteeing the sealing effect on spacer 8 gentle cylinder head plate planes 7, also can add the sealing gasket that scribbles the refractory seal agent at 10 places, lower end surface of spacer 8, used sealing gasket can be chosen soft slightly, yielding materials such as copper or Cuprum alloy and make.Used refractory seal agent can be various, as can smear 242 thread locking adhesives on the outside thread of spacer 8, in the happy safe 5920 silicone rubber plane sealing agent in 10 places, lower end surface of spacer 8.The safe 5920 silicone rubber plane sealing agent of used pleasure, 320 ℃ of limiting temperatures, 250 ℃ of temperature commonly used can satisfy the requirement of spark plug Environmental Conditions.Spark plug is installed in the inside of spacer 8 after the installation again.
Adopt the spacer 8 of steel to test on four valve natural gas engines, smear 242 thread locking adhesives on the outside thread of spacer 8,10 places, lower end surface of spacer 8 are with finding pleasure in safe 5920 silicone rubber plane sealing agent.Can easily spacer 8 be tightened on cylinder and cover, waltz through test of cylinder head leak test and engine performance test.
Claims (5)
1. spark plug spacer, it is characterized in that: described spacer (8) is the cylindrical shell of hollow, the interior threaded hole (6) of corresponding cylinder head jacket (4) top is provided with outside thread on the outer wall of spacer (8), and the end face that is provided with outside thread one end is provided with polygonal counterbore (11).
2. a kind of spark plug spacer according to claim 1 is characterized in that: described spacer (8) is gone up corresponding cylinder head jacket (4) and is provided with groove (9).
3. a kind of spark plug spacer according to claim 1 and 2 is characterized in that: the lower end surface (10) of described spacer (8) is provided with zigzag fashion or wave-shaped trench for plane or lower end surface (10).
4. a kind of spark plug spacer according to claim 1 and 2 is characterized in that: described spacer (8) adopts steel or stainless steel to make.
5. a kind of spark plug spacer according to claim 1 and 2 is characterized in that: the counterbore (11) on the described spacer (8) is quadrangle, hexagon or dodecagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202303615U CN201318242Y (en) | 2008-12-17 | 2008-12-17 | Spark plug spacer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202303615U CN201318242Y (en) | 2008-12-17 | 2008-12-17 | Spark plug spacer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318242Y true CN201318242Y (en) | 2009-09-30 |
Family
ID=41197007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202303615U Expired - Lifetime CN201318242Y (en) | 2008-12-17 | 2008-12-17 | Spark plug spacer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318242Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886586A (en) * | 2010-07-15 | 2010-11-17 | 东风汽车有限公司 | Split type spark plug sealing structure |
| CN101886587A (en) * | 2010-07-15 | 2010-11-17 | 东风汽车有限公司 | Spark plug sealing structure |
| CN102576982A (en) * | 2009-10-23 | 2012-07-11 | 日本特殊陶业株式会社 | Spark plug and method for producing spark plug |
| CN103557108A (en) * | 2013-10-15 | 2014-02-05 | 宁波市鄞州雅斯特通信科技有限公司 | High-pressure cooling sleeve manufactured precisely |
| CN103807070A (en) * | 2012-11-07 | 2014-05-21 | 广西玉柴机器股份有限公司 | Fuel injector installation structure for diesel engine cylinder head |
| CN104500310A (en) * | 2014-12-25 | 2015-04-08 | 重庆科克发动机技术有限公司 | Sealing structure for ignition plug |
| CN106575856A (en) * | 2014-08-27 | 2017-04-19 | 罗伯特·博世有限公司 | Spark plug having a seal made of an at least ternary alloy |
| CN108757267A (en) * | 2018-05-18 | 2018-11-06 | 东风商用车有限公司 | External-capacity spacer bush device of spark plug in engine and manufacturing method thereof |
-
2008
- 2008-12-17 CN CNU2008202303615U patent/CN201318242Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102576982A (en) * | 2009-10-23 | 2012-07-11 | 日本特殊陶业株式会社 | Spark plug and method for producing spark plug |
| CN101886586A (en) * | 2010-07-15 | 2010-11-17 | 东风汽车有限公司 | Split type spark plug sealing structure |
| CN101886587A (en) * | 2010-07-15 | 2010-11-17 | 东风汽车有限公司 | Spark plug sealing structure |
| CN101886587B (en) * | 2010-07-15 | 2012-07-11 | 东风汽车有限公司 | Spark plug sealing structure |
| CN101886586B (en) * | 2010-07-15 | 2012-10-03 | 东风汽车有限公司 | Split type spark plug sealing structure |
| CN103807070A (en) * | 2012-11-07 | 2014-05-21 | 广西玉柴机器股份有限公司 | Fuel injector installation structure for diesel engine cylinder head |
| CN103557108A (en) * | 2013-10-15 | 2014-02-05 | 宁波市鄞州雅斯特通信科技有限公司 | High-pressure cooling sleeve manufactured precisely |
| CN106575856A (en) * | 2014-08-27 | 2017-04-19 | 罗伯特·博世有限公司 | Spark plug having a seal made of an at least ternary alloy |
| US9819156B2 (en) | 2014-08-27 | 2017-11-14 | Robert Bosch Gmbh | Spark plug having a seal made of an at least ternary alloy |
| CN106575856B (en) * | 2014-08-27 | 2019-03-22 | 罗伯特·博世有限公司 | Spark plug with sealing made of the alloy at least ternary |
| CN104500310A (en) * | 2014-12-25 | 2015-04-08 | 重庆科克发动机技术有限公司 | Sealing structure for ignition plug |
| CN108757267A (en) * | 2018-05-18 | 2018-11-06 | 东风商用车有限公司 | External-capacity spacer bush device of spark plug in engine and manufacturing method thereof |
| CN108757267B (en) * | 2018-05-18 | 2023-10-24 | 东风商用车有限公司 | Outer spacer device of spark plug in engine and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201318242Y (en) | Spark plug spacer | |
| CN202142771U (en) | Water-cooling type ignition plug sleeve and mounting and fixing structure thereof | |
| CN204373848U (en) | A kind of engine cylinder-body water oil channel sealing detects fixture | |
| CN201521759U (en) | Rush-repairer of pipeline | |
| CN203912447U (en) | Electric tricycle high-power controller | |
| CN201119166Y (en) | Electric car controller | |
| CN201554568U (en) | Cylinder lid for gas engine | |
| CN220060105U (en) | Cooling device for hydraulic oil cylinder | |
| CN202370637U (en) | Exhaust manifold mounting structure | |
| CN204436615U (en) | A kind of head gasket of motor single cylinder sealing | |
| CN213393784U (en) | Novel electromagnetic pulse valve | |
| CN216477595U (en) | Cylinder cover of medium-speed diesel engine | |
| WO2020140484A1 (en) | Novel cylinder head of natural gas engine | |
| CN202545033U (en) | Embedded bush for mounting hole of ignition system of cylinder cover | |
| CN204779806U (en) | Internal -combustion engine cylinder jacket excircle nickel phosphorus composite treatment device | |
| CN206803042U (en) | Anti-explosion visual pore lamp | |
| CN204834273U (en) | Transformer is with forcing tube sheet and hydroecium mounting structure of oily circulating water cooling ware | |
| CN214273815U (en) | Cast iron cylinder cover | |
| CN214304127U (en) | Diesel engine electric control high-pressure common rail pipeline | |
| CN209309641U (en) | A kind of compact machine oil cooler | |
| CN204227971U (en) | The new structure of Microgroove group composite phase change radiator | |
| CN218934526U (en) | Automobile engine oil filter assembly | |
| CN211058938U (en) | Fixing device of oil sprayer | |
| CN215469588U (en) | Power machinery cylinder cap clamping device based on it is horizontal | |
| CN214221355U (en) | Cylinder cover of automobile engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGFENG COMMERCIAL VEHICLE CO., LTD. Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD. Effective date: 20130905 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430056 WUHAN, HUBEI PROVINCE TO: 442001 SHIYAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130905 Address after: 442001 Shiyan City, Hubei province city Zhangwan District Road No. 2 Patentee after: DONGFENG TRUCKS Co.,Ltd. Address before: 430056 Dongfeng Road, Wuhan Economic Development Zone, Hanyang District, Hubei, China, No. 10, No. Patentee before: DONGFENG MOTER Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090930 |
|
| CX01 | Expiry of patent term |