CN103321790B - Miniature gasoline engine integral type overturning-preventing fuel tank cap charcoal tank - Google Patents
Miniature gasoline engine integral type overturning-preventing fuel tank cap charcoal tank Download PDFInfo
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- CN103321790B CN103321790B CN201310251099.8A CN201310251099A CN103321790B CN 103321790 B CN103321790 B CN 103321790B CN 201310251099 A CN201310251099 A CN 201310251099A CN 103321790 B CN103321790 B CN 103321790B
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- charcoal
- tank
- fuel tank
- fuel
- spin
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- 239000003610 charcoal Substances 0.000 title claims abstract description 77
- 239000002828 fuel tank Substances 0.000 title claims abstract description 77
- 239000003502 gasoline Substances 0.000 title claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000004744 fabric Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 13
- 239000000295 fuel oil Substances 0.000 description 10
- 239000000446 fuel Substances 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000003795 desorption Methods 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 238000009834 vaporization Methods 0.000 description 5
- 230000008016 vaporization Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 206010059875 Device ineffective Diseases 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000004023 plastic welding Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
The invention provides a kind of collection fuel-cut valve, charcoal canister, fuel tank be placed on one, structure simple miniature gasoline engine overturning-preventing fuel tank cap charcoal tank, it comprises fuel tank cap outer cover, have the collar of lug, Compress Spring, oil tank cover sealing pad, and the charcoal tank of a dress active carbon is located in the space that locking skeleton and fuel tank cap outer cover surround; Be tightly connected between charcoal tank and locking skeleton; Charcoal tank bottom connects guide pin bushing, and guide pin bushing lower end connects lower shell body lid; In guide pin bushing, have the valve body slided up and down, valve body upper end has the spool be sealed and matched with the valve opening opened on charcoal tank skin; The bottom of valve body arranges spin; Spin seat bottom is connected with lower shell body lid, and spin is positioned at the taper reentrant part of spin seat; Taper reentrant part and lower shell body cover the suction port had and communicate; Charcoal tank top has air outlet, and air outlet is communicated with fuel tank outside by the vent opened on fuel tank cap outer cover or locking skeleton; When inclined, spin promotes valve body in taper and moves, and makes seal spool valve opening.
Description
Technical field
The overturning-preventing fuel tank cap charcoal tank that miniature gasoline engine fuel tank cap involved in the present invention, particularly a kind of oil-collecting case lid, charcoal canister and fuel-cut valve are integrated.
Background technique
Miniature gasoline engine take gasoline as fuel, and power is no more than the motor of 19KW, is usually used in the equipment dynamic sources such as motorcycle, generator, water pump, mowing machine and cutting machine.Along with the extensive use of general small-size gasoline engine, one of gasoline volatilization thing main source becoming pollution of atmosphere of being discharged by fuel tank cap vent.World today's global warming, energy-saving and emission-reduction have become global common recognition.Control general small-size gasoline engine fuel oil volatilization to cause the great attention of various countries, particularly American-European countries, formulate strict Abgasgesetz.What current miniature gasoline engine fuel evaporation pollutant limit value in the world performed has California, USA standard, U.S. EPA III stage criterion, Europe II stage criterion, motorcycle state III standard.Along with general small-size gasoline engine fuel evaporation emission limit is more and more stricter, each company researcher has carried out a large amount of technological development and improvement.
The fuel evaporation emission control of current general small-size gasoline engine mainly installs charcoal canister additional, and installs fuel-cut valve additional to control the fuel leakage under non-normal working.Due to miniature gasoline engine compact structure, charcoal tank mounting point and fuel-cut valve mounting point limited.Particularly being arranged on fuel tank extreme higher position during fuel-cut valve is optimum position, but be arranged on extreme higher position have influence on the overall structure of fuel tank and the switch of fuel tank cap can be had influence on, general producer is arranged on fuel-cut valve below fuel tank at present, the shortcoming of this installation connects fuel tank vent will inevitably be filled with oil when non-normal working to the pipeline of fuel-cut valve, when one reply normally works, these oil just directly enter in charcoal tank, corrode the ability to work of powdered carbon, cause fuel evaporation to discharge and exceed standard; Be some the desorption of above this charcoal tank mainly comes in desorption charcoal tank fuel-steam by the suction of motor negative pressure in addition, the gasoline concentration of enriching engine charge can be produced, the final deterioration increasing exhaust emissions.Certainly, if control discharge vaporization by transformation fuel tank, fuel tank cap and increase oil pipe pipeline, accessory can be caused to increase, poor reliability, install loaded down with trivial details, cost increases.
Summary of the invention
The object of this invention is to provide a kind of collection fuel-cut valve, charcoal canister, fuel tank be placed on one, structure simple miniature gasoline engine overturning-preventing fuel tank cap charcoal tank, it can ensure that fuel-cut valve is in the peak of fuel tank, ensures that fuel-cut valve plays a very good protection; It can ensure that fuel-cut valve protection is not directly corroded by fuel oil to charcoal tank, ensure that the ability to work of charcoal tank, decreases connecting pipeline, reduce costs; The air flowing that it produces time oily under utilizing fuel tank carrys out the fuel-steam of desorption charcoal tank, makes the permanently effective work of charcoal tank energy.
For solving the problem, technological scheme of the present invention is: a kind of miniature gasoline engine integral type overturning-preventing fuel tank cap charcoal tank, comprise fuel tank cap outer cover, there is the collar of two lugs, Compress Spring, oil tank cover sealing pad, the upper periphery of locking skeleton is connected with the inner circumferential of fuel tank cap outer cover, locking skeleton has collar hole, two lugs of collar are through collar hole, Compress Spring when having normality between collar and the lower end of locking skeleton, lug being contacted with top in collar hole, be arranged on lock skeleton for sealing with fuel tank the oil tank cover sealing pad contacted, charcoal tank that active carbon is housed is located in the inner space that locking skeleton and fuel tank cap outer cover surround, be tightly connected between charcoal tank and locking skeleton, connect guide pin bushing in the bottom of charcoal tank, guide pin bushing lower end connects lower shell body lid, in guide pin bushing, have the valve body along guide pin bushing axially lower slider, valve body upper end has the spool be sealed and matched with the valve opening opened on charcoal tank skin, the bottom of valve body arranges spin, spin seat bottom is connected with lower shell body lid, and spin is positioned at the taper reentrant part on spin seat top, taper reentrant part and lower shell body cover the suction port had and communicate, charcoal tank top has air outlet, and air outlet is communicated with fuel tank outside by the vent opened on fuel tank cap outer cover or locking skeleton, when this overturning-preventing fuel tank cap charcoal tank tilts, spin is rolled in taper reentrant part, promotes valve body and moves, make seal spool valve opening.
Beneficial effect of the present invention: the composition such as valve body, spool, valve opening, spin, spin seat fuel-cut valve, fuel tank cap outer cover, collar, Compress Spring, oil tank cover sealing pad etc. constitute fuel tank cap, and the present invention is collection fuel-cut valve, charcoal canister, fuel tank are placed on one.Like this, ensure that fuel-cut valve is in the peak of fuel tank, ensure that fuel-cut valve plays a very good protection.When this overturning-preventing fuel tank cap charcoal tank tilts, spin is rolled in taper reentrant part, promotes valve body and moves, make seal spool valve opening, prevent fuel oil from being arrived in charcoal tank by valve opening and directly corroding active carbon, ensure that the ability to work of charcoal tank, decrease connecting pipeline, reduce costs.When under fuel tank during oil, air through vent, air outlet, enter fuel tank through active carbon, suction port, the fuel-steam of the desorption charcoal tank that flows by air, make charcoal tank can permanently effective work.It changes original charcoal tank and produces negative pressure by motor and come the mode of desorption charcoal tank fuel-steam and problem that tail gas is worsened.In a word, the present invention is charcoal tank, fuel-cut valve and fuel tank cap are integrated in one, and can ensure the bounded collection that fuel evaporation discharges, and avoid pipeline too much, avoid the possibility that fuel oil permeates from pipeline and joint escapes out, good reliability, cost is low.
Above-mentioned overturning-preventing fuel tank cap charcoal tank, described spool is a part for sphere, and described valve opening is cone shape hole.Spherical valve core coordinates with cone shape hole, ensure that Universal sealed performance.
Above-mentioned overturning-preventing fuel tank cap charcoal tank, outputs between the charcoal tank skin of gas port and active carbon and is provided with filter cloth.
Above-mentioned overturning-preventing fuel tank cap charcoal tank, arranges sponge between the charcoal tank skin in valve opening hole and active carbon.
Above-mentioned overturning-preventing fuel tank cap charcoal tank, is sealed by o type circle between charcoal tank and locking skeleton.
Accompanying drawing explanation
This miniature gasoline engine of Fig. 1 integral type overturning-preventing fuel tank cap charcoal tank is at the schematic diagram of using state;
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
Miniature gasoline engine integral type overturning-preventing fuel tank cap charcoal tank of the present invention as shown in Figure 1, comprises fuel tank cap outer cover, fuel-oil vaporization controlling device, fuel tank cap locking device and sealing O type circle etc.
Fuel-oil vaporization controlling device comprises charcoal tank upper shell 1, nonwoven filtration cloth 2, active carbon 3, sponge 4, charcoal tank lower shell body 5, steel ball (spin) 6, upper end have hemisphere spool 7 valve body 11 and lower shell body lid 8, guide pin bushing 12, steel ball seat (spin seat) 13.
Nonwoven filtration cloth 2 is mated formation bottom charcoal tank upper shell 1, inside is mounted with active carbon 3, then sponge 4 on charcoal tank lower shell body 5 groove is in-built, welds charcoal tank lower shell body 5 with the charcoal tank upper shell 1 installing active carbon 3 finally by plastic welding machine, ensures welding airtightness.
Guide pin bushing 12 is welded on the outer bottom of charcoal tank lower shell body 5, and lower shell body lid 8 top has steel ball seat 13.Spin seat top is taper reentrant part 14, and center and the lower shell body of taper reentrant part cover the suction port 15 had and communicate.Valve body is positioned at guide pin bushing, and spool 7 and the taper valve opening 16 opened on charcoal tank lower casing body wall of valve body upper end are sealed and matched.It is the steel ball 6 being positioned at taper reentrant part below valve body.Lower shell body lid 8 welds with guide pin bushing lower end, completes the assembling of fuel-oil vaporization controlling device B parts.
Fuel tank cap locking device comprises locking skeleton 20, Compress Spring 21 and has the locking collar 22 of two lugs 24 and oil tank cover sealing pad 23 etc.Locking skeleton 20 is cylindrical bodys that a upper end is connected with skirt section 31, and its skirt peripheral edge coordinates with the inner circumferential of fuel tank cap outer cover 30 and compresses, and seals connected.The cylindrical body sidepiece of locking skeleton 20 has two collar holes 25, and two lugs 24 of collar are through collar hole 25.The Compress Spring 21 when having normality between collar and the lower end of locking skeleton, lug being contacted with top in collar hole, is arranged on the inside, skirt section of locking skeleton for sealing with fuel tank 32 the oil tank cover sealing pad 23 contacted.By Compress Spring 21 by locking collar, oil tank cover sealing pad close-fitting at reservoir port 33 fitting surface of fuel tank, realize sealing.The lower end of locking skeleton has through hole 26.
Seal by sealing O type circle 29 between locking skeleton and charcoal tank lower shell body.
The locking skeleton of oil tank cover sealing pad outside has vent 27.Charcoal tank upper shell top has air outlet 28, outputs between the charcoal tank upper shell of gas port and fuel tank cap outer cover 30 and has gap, and air outlet 28 is communicated with fuel tank outside by this gap, vent 27.
Miniature gasoline engine integral type overturning-preventing fuel tank cap charcoal tank of the present invention, when fuel tank volatilizes steam by temperature variation, fuel-steam enters in locking skeleton from the through hole 26 etc. of locking skeleton underpart, then sponge 4 is entered into, finally by the adsorption of active carbon 3 by the suction port 15 on lower shell body lid 8, taper valve opening 16.When the engine operates, fuel tank starts lower oil, fuel tank internal air pressure disequilibrium, outside air is from shroud rim vent 27, fuel tank cap, enter into active carbon 3 layers by air outlet 28, again by the through hole 26 on the suction port 15 on sponge 4, taper valve opening 16, lower shell body lid 8, locking skeleton, finally enter fuel tank.Meanwhile, the air of flowing takes away the fuel-steam of attachment in active carbon 3, enters fuel tank, thus realizes the desorption function of charcoal tank.(mainly refer to engine tilts when motor is in non-normal working or topple over), gasoline can directly be escaped from from the through hole 26 locking skeleton, at this moment steel ball 6 gravitate rolls in taper reentrant part, promotes spool 7 and blocks taper valve opening 16, ensure that fuel oil does not leak away.After motor is in normal position, original position got back to by steel ball 6, and taper valve opening 16 keeps unimpeded, and ensure fuel tank normal ventilation, the work of such fuel-cut valve completes.The sealability of fuel tank cap mainly will lock collar, oil tank cover sealing pad close-fitting at reservoir port fitting surface by Compress Spring, ensure fuel tank sealability.
When machine be in normally work time, fuel-steam by active carbon time, receptor 1 activity charcoal adsorptive power impact be adsorbed on activated carbon surface.When machine is in inclination, steel ball promotes spool and is blocked by taper valve opening, preventing gasoline from escaping out erosion active carbon, making fuel-oil vaporization controlling device ineffective.Advantage of the present invention is oil-collecting case lid, charcoal canister and fuel-cut valve are integrated, and changes original charcoal tank by transformation fuel tank and fuel tank cap, increases pipeline and connects, affect complete machine overall appearance, the problem of poor reliability.Performance also can meet fuel evaporation emission request, when machine non-normal working tilts, also can cut off fuel oil and prevent fuel from fuel tank from escaping out, meet safety and environmental protection requirement, and relative cost be lower on the whole.
Claims (5)
1. a miniature gasoline engine integral type overturning-preventing fuel tank cap charcoal tank, comprise fuel tank cap outer cover, there is the collar of two lugs, Compress Spring, oil tank cover sealing pad, the upper periphery of locking skeleton is connected with the inner circumferential of fuel tank cap outer cover, locking skeleton has collar hole, two lugs of collar are through collar hole, Compress Spring when having normality between collar and the lower end of locking skeleton, lug being contacted with top in collar hole, is arranged on locks skeleton for sealing with fuel tank the oil tank cover sealing pad contacted; It is characterized in that: charcoal tank that active carbon is housed is located in the inner space that locking skeleton and fuel tank cap outer cover surround; Be tightly connected between charcoal tank and locking skeleton; Connect guide pin bushing in the bottom of charcoal tank, guide pin bushing lower end connects lower shell body lid; In guide pin bushing, have the valve body along guide pin bushing axially lower slider, valve body upper end has the spool be sealed and matched with the valve opening opened on charcoal tank skin; The bottom of valve body arranges spin; Spin seat bottom is connected with lower shell body lid, and spin is positioned at the taper reentrant part on spin seat top; Taper reentrant part and lower shell body cover the suction port had and communicate; Charcoal tank top has air outlet, and air outlet is communicated with fuel tank outside by the vent opened on fuel tank cap outer cover or locking skeleton; When this overturning-preventing fuel tank cap charcoal tank tilts, spin is rolled in taper reentrant part, promotes valve body and moves, make seal spool valve opening.
2. overturning-preventing fuel tank cap charcoal tank as claimed in claim 1, it is characterized in that: described spool is a part for sphere, described valve opening is cone shape hole.
3. overturning-preventing fuel tank cap charcoal tank as claimed in claim 1, is characterized in that: output between the charcoal tank skin of gas port and active carbon and be provided with filter cloth.
4. overturning-preventing fuel tank cap charcoal tank as claimed in claim 1, is characterized in that: arrange sponge between the charcoal tank skin in valve opening hole and active carbon.
5. overturning-preventing fuel tank cap charcoal tank as claimed in claim 1, is characterized in that: sealed by o type circle between charcoal tank and locking skeleton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310251099.8A CN103321790B (en) | 2013-06-24 | 2013-06-24 | Miniature gasoline engine integral type overturning-preventing fuel tank cap charcoal tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310251099.8A CN103321790B (en) | 2013-06-24 | 2013-06-24 | Miniature gasoline engine integral type overturning-preventing fuel tank cap charcoal tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103321790A CN103321790A (en) | 2013-09-25 |
| CN103321790B true CN103321790B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310251099.8A Active CN103321790B (en) | 2013-06-24 | 2013-06-24 | Miniature gasoline engine integral type overturning-preventing fuel tank cap charcoal tank |
Country Status (1)
| Country | Link |
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| CN (1) | CN103321790B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6739350B1 (en) * | 1999-06-01 | 2004-05-25 | Solvay (Societe Anonyme) | Fuel tank |
| CN1869427A (en) * | 2005-05-24 | 2006-11-29 | 本田技研工业株式会社 | General-purpose engine fuel tank fuel vapor treatment system |
| CN1873210A (en) * | 2005-05-31 | 2006-12-06 | 上海钊辉科技有限公司 | Incorporating device of oil spill control valve and activated carbon canister and composite unit between fuel tank and the incorporating device |
| CN2886105Y (en) * | 2006-04-03 | 2007-04-04 | 盐城博尔福机电科技发展有限公司 | Oil tank and oil tank cover assembly |
| CN101113704A (en) * | 2007-09-07 | 2008-01-30 | 隆鑫工业有限公司 | Fuel tank cap of general gasoline engine |
| TW200846211A (en) * | 2007-05-17 | 2008-12-01 | Sentec E & E Co Ltd | External fuel vapor emission adjusting device for fuel tank |
| CN201546848U (en) * | 2009-09-24 | 2010-08-11 | 重庆润通动力有限公司 | Fuel tank cap |
| CN202560411U (en) * | 2012-05-11 | 2012-11-28 | 盐城博尔福机电科技发展有限公司 | Oil tank cover of gasoline engine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7677277B2 (en) * | 2005-12-29 | 2010-03-16 | Eaton Corporation | Fuel tank cap with integrated carbon canister |
| JP4810406B2 (en) * | 2006-11-14 | 2011-11-09 | 株式会社Ｒｏｋｉ | Fuel cap and evaporative fuel adsorption canister used therefor |
| TW200840739A (en) * | 2007-04-10 | 2008-10-16 | Sentec E & E Co Ltd | Fuel tank with control of volatilization and spillage of fuel |
| JP5805468B2 (en) * | 2011-08-30 | 2015-11-04 | 富士重工業株式会社 | Fuel tank cap |
-
2013
- 2013-06-24 CN CN201310251099.8A patent/CN103321790B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6739350B1 (en) * | 1999-06-01 | 2004-05-25 | Solvay (Societe Anonyme) | Fuel tank |
| CN1869427A (en) * | 2005-05-24 | 2006-11-29 | 本田技研工业株式会社 | General-purpose engine fuel tank fuel vapor treatment system |
| CN1873210A (en) * | 2005-05-31 | 2006-12-06 | 上海钊辉科技有限公司 | Incorporating device of oil spill control valve and activated carbon canister and composite unit between fuel tank and the incorporating device |
| CN2886105Y (en) * | 2006-04-03 | 2007-04-04 | 盐城博尔福机电科技发展有限公司 | Oil tank and oil tank cover assembly |
| TW200846211A (en) * | 2007-05-17 | 2008-12-01 | Sentec E & E Co Ltd | External fuel vapor emission adjusting device for fuel tank |
| CN101113704A (en) * | 2007-09-07 | 2008-01-30 | 隆鑫工业有限公司 | Fuel tank cap of general gasoline engine |
| CN201546848U (en) * | 2009-09-24 | 2010-08-11 | 重庆润通动力有限公司 | Fuel tank cap |
| CN202560411U (en) * | 2012-05-11 | 2012-11-28 | 盐城博尔福机电科技发展有限公司 | Oil tank cover of gasoline engine |
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| Publication number | Publication date |
|---|---|
| CN103321790A (en) | 2013-09-25 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Integrated toppling-preventive fuel tank cap and carbon canister combination of small gasoline engine Effective date of registration: 20190103 Granted publication date: 20160203 Pledgee: Bank of China Limited by Share Ltd. Gaochun branch Pledgor: NANJING DEPURACE CATALYST CO.,LTD. Registration number: 2019320000005 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| 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: 20210628 Granted publication date: 20160203 Pledgee: Bank of China Limited by Share Ltd. Gaochun branch Pledgor: NANJING DEPURACE CATALYST Co.,Ltd. Registration number: 2019320000005 |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220831 Address after: No.18, Youshan Road, Gaochun Economic Development Zone, Nanjing, Jiangsu, 211300 Patentee after: Nanjing deprec Environmental Protection Technology Co.,Ltd. Address before: No. 18, Youshan Road, Economic Development Zone, Gaochun County, Nanjing City, Jiangsu Province, 211300 Patentee before: NANJING DEPURACE CATALYST CO.,LTD. |
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| 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 invention: Small gasoline engine integrated anti tipping fuel tank cover carbon canister Granted publication date: 20160203 Pledgee: Ningbo Bank Co.,Ltd. Nanjing Branch Pledgor: Nanjing deprec Environmental Protection Technology Co.,Ltd. Registration number: Y2024980017325 |