CN203948183U - A kind of natural gas engine special gas cylinder cap - Google Patents
A kind of natural gas engine special gas cylinder cap Download PDFInfo
- Publication number
- CN203948183U CN203948183U CN201420323256.1U CN201420323256U CN203948183U CN 203948183 U CN203948183 U CN 203948183U CN 201420323256 U CN201420323256 U CN 201420323256U CN 203948183 U CN203948183 U CN 203948183U
- Authority
- CN
- China
- Prior art keywords
- spark
- cylinder head
- head body
- valve seat
- seat ring
- 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 - Fee Related
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000003345 natural gas Substances 0.000 title claims abstract description 13
- 239000007789 gas Substances 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000010304 firing Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 210000004907 gland Anatomy 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 241000005139 Lycium andersonii Species 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000001192 hot extrusion Methods 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of natural gas engine special gas cylinder cap, comprise cylinder body, described cylinder head body be provided with air valve seat ring and valve guide bushing, on described cylinder head body, be provided with spark plug, the surrounding of described spark plug is provided with spark-plug socket, described spark plug has the tilt angle being between 45 °-90 °, and the below that lower end one side of described cylinder head body is positioned at described air valve seat ring is that planar design is without firing chamber.The utility model is by increasing spark plug, realize from compression ignite and changing to the essence of lighting, by adopting steel spark-plug socket, and reach the rationality of thermal expansion coefficient, thoroughly avoid because of the different hot extrusion deformations that produce of thermal expansion coefficient, final sealing is lost and is produced the serious consequence that percolating water causes, by changing the material of air valve seat ring, and mate rational hardness, improve the reliability of motor, by the water-jacket space of intensifying cylinder lid, improve the cooling performance of motor, improve the reliability of motor.
Description
Technical field
The utility model relates to a kind of cylinder head, relates in particular to a kind of natural gas engine special gas cylinder cap.
Background technique
Cylinder head is the vitals of engine chamber, is to ensure the smooth air inlet in firing chamber, lights combustion gas, forms seal space when burning, the pressure that carrying burning outburst produces, and waste gas is discharged the most at last.The part heat that cooling water channel produces burning is simultaneously taken away by cooling water circulation.Therefore, cylinder head plays vital effect to the normal operation of motor.
At present, diesel engine changes the cylinder head of natural gas engine into, and basic principle is roughly close, but ignition plug sleeve adopts the copper sleeve of former diesel engine, thermal expansion coefficient is larger, and cylinder head is cast iron materials, and thermal expansion coefficient is more copper little, the former Fit of ignition plug sleeve and cylinder head after being heated, because the hardness of copper ignition plug sleeve is lower, thermal expansion amount is large, and extrusion, after engine cold, very easily there is infiltration phenomenon herein.Thereby affect the normal work of motor, serious meeting causes motor to produce high temperature because of lack of water, and causes scuffing of cylinder bore, more serious meeting firing chamber water inlet, and cause the bending of piston rod, and cause complete machine to scrap.
Model utility content
The purpose of this utility model is just to provide in order to address the above problem a kind of natural gas engine special gas cylinder cap.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises cylinder head body, described cylinder head body be provided with air valve seat ring and valve guide bushing, on described cylinder head body, be provided with spark plug, the surrounding of described spark plug is provided with spark-plug socket, described spark plug has the tilt angle being between 45 °-90 °, and the below that lower end one side of described cylinder head body is positioned at described air valve seat ring is that planar design is without firing chamber.
Particularly, described cylinder head body is provided with spark plug.
As preferably, described spark-plug socket is interference fitted on cylinder cap body.
As preferably, described spark-plug socket outer wall has the sealing of O type circle.
As preferably, described spark-plug socket top is provided with gland nut and compresses.
Further, described air valve seat ring is that powdered metallurgical material is made.
The beneficial effects of the utility model are:
The utility model is by increasing spark plug, realize from compression ignite and changing to the essence of lighting, by adopting steel spark-plug socket, and reach the rationality of thermal expansion coefficient, thoroughly avoid because of the different hot extrusion deformations that produce of thermal expansion coefficient, final sealing is lost and is produced the serious consequence that percolating water causes, by changing the material of air valve seat ring, and mate rational hardness, improve the reliability of motor, by the water-jacket space of intensifying cylinder lid, improve the cooling performance of motor, improve the reliability of motor.
Brief description of the drawings
Fig. 1 is the three-dimensional view of a kind of natural gas engine special gas cylinder cap described in the utility model.
In figure: 1-cylinder head body, 2-air valve seat ring, 3-spark-plug socket, 4-spark plug, 5-O RunddichtringO, 6-gland nut, 7-valve guide bushing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model comprises cylinder head body 1, upper end one side of cylinder head body 1 is provided with air valve seat ring 2, the opposite side of cylinder head body 1 upper end is provided with spark plug 4, on the outer wall of spark plug 4, be provided with spark-plug socket 3, spark plug 4 has the tilt angle that is 75 °, and the lower end opposite side of cylinder head body 1 is provided with air valve seat ring valve 2, air valve seat ring 5 is fixed on cylinder head body 1 by interference fit, and air valve seat ring 5 powdered metallurgical materials are made.
Those skilled in the art do not depart from essence of the present utility model and spirit, can there is various deformation scheme to realize the utility model, the foregoing is only the better feasible embodiment of the utility model, not thereby limit to interest field of the present utility model, the equivalent structure that all utilization the utility model specifications and accompanying drawing content are done changes, within being all contained in interest field of the present utility model.
Claims (6)
1. a natural gas engine special gas cylinder cap, it is characterized in that: comprise cylinder head body, described cylinder head body be provided with air valve seat ring and valve guide bushing, on described cylinder head body, be provided with spark plug, the surrounding of described spark plug is provided with spark-plug socket, described spark plug has the tilt angle being between 45 °-90 °, and the below that lower end one side of described cylinder head body is positioned at described air valve seat ring is that planar design is without firing chamber.
2. a kind of natural gas engine special gas cylinder cap according to claim 1, is characterized in that: described cylinder head body is provided with spark plug.
3. a kind of natural gas engine special gas cylinder cap according to claim 2, is characterized in that: described spark-plug socket is interference fitted on cylinder cap body.
4. a kind of natural gas engine special gas cylinder cap according to claim 1, is characterized in that: described spark-plug socket outer wall has the sealing of O type circle.
5. a kind of natural gas engine special gas cylinder cap according to claim 1, is characterized in that: described spark-plug socket top is provided with gland nut and compresses.
6. a kind of natural gas engine special gas cylinder cap according to claim 1, is characterized in that: described air valve seat ring is that powdered metallurgical material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323256.1U CN203948183U (en) | 2014-06-18 | 2014-06-18 | A kind of natural gas engine special gas cylinder cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323256.1U CN203948183U (en) | 2014-06-18 | 2014-06-18 | A kind of natural gas engine special gas cylinder cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203948183U true CN203948183U (en) | 2014-11-19 |
Family
ID=51890222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420323256.1U Expired - Fee Related CN203948183U (en) | 2014-06-18 | 2014-06-18 | A kind of natural gas engine special gas cylinder cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203948183U (en) |
-
2014
- 2014-06-18 CN CN201420323256.1U patent/CN203948183U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 101109 Beijing city Tongzhou District town Huoxian Kuo Xing two Street No. 2 Patentee after: BEIJING CHAIFA INTERNAL COMBUSTION ENGINE PARTS MANUFACTURE CO.,LTD. Address before: 100024, Beijing, Chaoyang Road, Chaoyang District, Yang gate, Huandao, East Acropolis, block A, 606 Patentee before: BEIJING CHAIFA INTERNAL COMBUSTION ENGINE PARTS MANUFACTURE CO.,LTD. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Special cylinder cover for natural gas engine Effective date of registration: 20170623 Granted publication date: 20141119 Pledgee: Beijing technology intellectual property financing Company limited by guarantee Pledgor: BEIJING CHAIFA INTERNAL COMBUSTION ENGINE PARTS MANUFACTURE CO.,LTD. Registration number: 2017990000529 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190411 Granted publication date: 20141119 Pledgee: Beijing technology intellectual property financing Company limited by guarantee Pledgor: BEIJING CHAIFA INTERNAL COMBUSTION ENGINE PARTS MANUFACTURE CO.,LTD. Registration number: 2017990000529 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Special cylinder cover for natural gas engine Effective date of registration: 20190411 Granted publication date: 20141119 Pledgee: Beijing technology intellectual property financing Company limited by guarantee Pledgor: BEIJING CHAIFA INTERNAL COMBUSTION ENGINE PARTS MANUFACTURE CO.,LTD. Registration number: 2019990000317 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210407 Granted publication date: 20141119 Pledgee: Beijing technology intellectual property financing Company limited by guarantee Pledgor: BEIJING CHAIFA INTERNAL COMBUSTION ENGINE PARTS MANUFACTURE Co.,Ltd. Registration number: 2019990000317 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |