CN202451322U - Vent valve installed on general gasoline engine fuel tank - Google Patents
Vent valve installed on general gasoline engine fuel tank Download PDFInfo
- Publication number
- CN202451322U CN202451322U CN2012200181342U CN201220018134U CN202451322U CN 202451322 U CN202451322 U CN 202451322U CN 2012200181342 U CN2012200181342 U CN 2012200181342U CN 201220018134 U CN201220018134 U CN 201220018134U CN 202451322 U CN202451322 U CN 202451322U
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- valve
- vent
- fuel tank
- plug
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Abstract
The utility model provides a vent valve installed on a general gasoline engine fuel tank. The vent valve can solve the problem that engine vibration influences normal ventilation of the fuel tank, and the fuel tank is easy to close and not sensitive in movement, can effectively avoid the fact that fuel oil rushes in a breather pipe to enter a carbon tank or an engine air intake system caused by vibration when a gasoline engine is normally work. A valve body and a valve bottom cover are sealed to form a valve cavity, the breather pipe is arranged on the top portion of the valve body, the breather pipe is communicated with the valve cavity through a valve port, a concave valve seat is arranged at the bottom of the valve bottom cover, a steel ball is arranged on the valve seat, a bottle-cap-shaped valve plug and the valve cavity are in clearance fit and above the steel ball, a valve needle capable of closing the breather pipe and matched with the valve port is arranged on the outside of the top portion of the valve plug, a first vent hole arranged at the bottom of the valve bottom cover is communalized with the valve cavity simultaneously, an elastic component is arranged between the outside of the top portion of the valve plug and the inside of the top portion of the valve cavity.
Description
Technical field
The utility model relates to a kind of mechanical valve, especially is installed in the vent valve on the general gasoline engines fuel tank.
Background technique
It with the general gasoline engines working machine such as micro pump, generator set of power; Generally be provided with independently fuel tank; During the general gasoline engines proper functioning; Fuel oil will utilize potential difference and the negative pressure of petrol engine own to inject combustion chamber of petrol engine continuously, and this just needs fuel tank and atmosphere to keep communicating.Fuel tank and atmosphere adopt two kinds of ways usually: the one, through fuel tank cap and atmosphere; The one, through a special vent valve is installed at the fuel tank top, vent valve communicates with the gas handling system of general gasoline engines.Two kinds of methods when petrol engine quits work, all possibly cause fuel-steam directly to enter atmosphere and befouling environment.For the control fuel-steam directly enters atmosphere; On the basis of vent valve, canister generally is set behind valve again, and (canister of mentioning in this specification is the content of known technology; In any accompanying drawing of this specification, all do not mark its schematic representation) collect, the absorption fuel-steam; In petrol engine when work,, the negative pressure of fuel-steam through petrol engine intake system that is attracted in the canister is transported to gas handling system, and gets into the firing chamber after the air mixing and participates in burning.Simultaneously; For prevent the fuel tank run-off the straight or when toppling over fuel oil get into canister through vent valve and make that activated adsorption material (like active carbon) lost efficacy in the canister; Be provided with the control valve unit that stops fuel to get into canister because of accident in the vent valve; And under normal circumstances, this control valve unit does not hinder fuel tank and keeps communicating with atmosphere.
Existing technology is installed on the vent valve (as shown in Figure 1) on the general gasoline engines fuel tank; Be made up of valve body, valve bottom, bottle cap shape valve plug and steel ball equally, valve body and valve bottom are sealed to valve pocket, establish breathing pipe on the valve body; The valve bottom is provided with second air vent; On second air vent of the bottom outside of valve bottom, be set with the installation gum cover, valve plug is positioned at valve pocket, and the top outer of valve plug is provided with needle and matches with the valve port of valve interior wall with breathing pipe connection place; The fitting surface of needle and valve port is a coned face, and steel ball is between the inverted cone valve seat of the inside top of valve plug and valve bottom.There is following problem in this technology: the one, because the fitting surface of needle and valve port is a coned face; Its cooperation is had relatively high expectations; Like needle skew is arranged slightly, can not seal fully between needle and the valve port, fuel oil can get into canister through valve port and make the canister inefficacy when fuel tank tilts or topples over; On the other hand; When fuel tank tilts or topples over; Thereby steel ball rolls on the inclined-plane of inverted cone valve seat and then promotes valve plug and makes needle closed with the valve port that is located on the valve body along the inwall of valve pocket to moving above the valve pocket; Invar ball inclined-plane of living in is the inverted cone inclined-plane, and the steel ball resistance that corresponding drive valve plug moves up and down in valve pocket that rolls is bigger, and sensitivity is relatively poor; The 3rd, the attachment face that gum cover is installed is positioned at the bottom of whole vent valve, thereby the more space that makes valve take the fuel tank outside also influences the overall appearance and the commodity of general gasoline engines or its working machine; The 4th; During normal use often there is the situation that fuel oil is adorned fullly or fuel oil is influenced by interior temperature rise of case and pressure difference in the vent valve of installing on the general gasoline engines fuel tank, and the fuel oil in the fuel tank can shake with the petrol engine vibration also directly scurries into vent valve; This moment since in the vent valve needle and valve port be open mode; Fuel oil can get into breathing pipe entering canister through valve port lost efficacy canister, and to this situation, the vent valve of existing technology can not solve; The 5th; Steel ball is beated on valve seat with certain amplitude constantly; And possibly therefore make valve plug in valve pocket, continue to move upward; Thereby possibly make the needle close port constantly on the valve plug, influence the normal ventilation of fuel tank and then influence the supply of engine fuel and finally influence the normal operation of motor.
The model utility content
For overcoming the above-mentioned deficiency of existing technology; The utility model type proposes a kind of avoiding influences the fuel tank normal ventilation because of engine luggine; And when fuel tank tilts or topples over, be easy to close, be active in one's movements be installed on the vent valve on the general gasoline engines fuel tank, and fuel oil is scurried into breathing pipe because of concussion and is got into canister or engine aspirating system can effectively prevent the petrol engine proper functioning time.
For realizing above-mentioned purpose; The technological scheme that is installed on the vent valve on the general gasoline engines fuel tank 1 that the utility model provides is: this vent valve is sealed to form valve pocket by valve body, valve bottom, and the valve body top is provided with breathing pipe, and this breathing pipe is communicated with through a valve port with valve pocket; Valve bottom bottom is provided with the spill valve seat; Put a steel ball on the valve seat, a bottle cap shape valve plug and valve pocket Spielpassung are arranged above steel ball, be provided with in the top outer of valve plug and cooperate the needle that to close breathing pipe with valve port; Valve bottom bottom is provided with first vent simultaneously and is communicated with valve pocket, it is characterized in that: be provided with an elastic member between valve plug top outer and the valve pocket inside top.
The purpose of elastic member is set between valve plug top outer and valve pocket inside top; Make motor exactly when proper functioning; Steel ball is beated and can be limited because of what its vibration with motor of effect of elastic member took place, thereby thereby guarantee vent valve can the invar ball under the effect of motor normal vibration bounce or jump and be closed the normal ventilation that influences fuel tank.And in the fuel tank run-off the straight or when toppling, steel ball moves up and promotes valve plug wall moves upward along the valve pocket chamber along valve seat, and the resistance that finally can overcome elastic member is closed vent valve, avoids fuel oil to get into breathing pipe.
Technological scheme 2: on the basis of technological scheme 1; This vent valve also comprises the Oil-gas Separation chamber; This Oil-gas Separation chamber is formed with said valve bottom bottom seals by the disengagement chamber lid, is provided with second vent in the bottom of said disengagement chamber lid, and second vent links to each other with valve pocket through first vent.
Owing to added an Oil-gas Separation chamber; Get into the Oil-gas Separation chamber even scurry into second vent because of the fuel oil concussion during general purpose engine proper functioning; In the Oil-gas Separation chamber; Liquid fuel oil can drop to the bottom and pass back into fuel tank because of action of gravity in the Oil-gas Separation chamber, the fuel oil of gaseous state then can normally pass through vent valve, thereby can independently realize preventing the situation that liquid fuel is scurried into the breathing pipe of vent valve and got into canister because of concussion through vent valve.
Technological scheme 3: on the basis of such scheme 2, improve; The bottom of disengagement chamber lid also is provided with " returning " font or " labyrinth " shape dividing plate in inboard, Oil-gas Separation chamber; Second vent is positioned at the both sides of " going back to " font dividing plate or the two ends of " labyrinth " shape dividing plate, forms the passage that can supply fuel oil or gas to pass through between dividing plate.
Such design; Make second vent be positioned at the dividing plate outside; The liquid fuel that can guarantee to scurry into the Oil-gas Separation chamber stops down dividing plate repeatedly, thereby the kinetic energy of its rising further reduces and makes it under the effect of gravity, drop on the bottom of disengagement chamber lid fully and be back in the fuel tank and avoid getting into breathing pipe through the valve port of vent valve.
Technological scheme 4: on the basis of scheme 1 or 2, further improve, elastic member is defined as coil spring.
Elastic member is defined as coil spring, and its simple structure is prone to design controllable to its elasticity size.
Technological scheme 5: on the basis of scheme 2, valve body and valve bottom, disengagement chamber lid and the mutual welding respectively of valve bottom bottom outside wall, breathing pipe and valve body are integrally formed and be connected to canister, and second vent is exposed to the above space of fuel tank pasta.
Technological scheme 5: on the basis of scheme 1; Further; The utility model be installed on the vent valve on the general gasoline engines fuel tank, between its valve body, valve bottom, on the valve pocket outer wall, be embedded with the installation gum cover, the attachment face that gum cover is installed is positioned at the upper position of valve pocket.
Technological scheme 6: on the basis of scheme 1 or scheme 2, on the valve pocket outer wall, be embedded with gum cover between valve body, the valve bottom, vent valve is snap-fit at the top of fuel tank through this gum cover.
By the design of scheme 5, scheme 6, can guarantee the sealing of valve pocket, Oil-gas Separation chamber, breathing pipe; Be connected to canister and can realize the absorptive collection of gaseous fuel, realize environmental requirement; Gum cover is inlaid between valve body, the valve bottom, has both made things convenient for the installation of vent valve in the utility model, also can effectively save vent valve the taking up room of fuel tank top, and strengthens the attractive in appearance and commercial of complete machine.
Technological scheme 7: on the basis of scheme 1 or 2, valve seat is integrally formed at valve bottom bottom centre position, and its cross section is the sphere spill and is that central longitudinal is to offering cross recess with first vent.The valve seat of sphere spill, suffered resistance is littler in the time of can making steel ball than rolling on the inverted cone valve seat, and action is sensitiveer; With first vent be central longitudinal to offering cross recess, can guarantee that the fuel oil of gaseous state smoothly gets into valve pocket through first vent and along cross recess.
Technological scheme 8: on the basis of scheme 1 or 2, fitting surface is a sphere between the valve port on needle on the said valve plug and the said valve body.The benefit of design is like this, even needle has small skew, because it is that sphere cooperates with valve port, also can under the effect of the thrust that steel ball makes progress and in the spacing correction down of sphere, squint closely cooperates needle and valve port, accomplishes closing motion.
Description of drawings
Fig. 1 is the vent valve structural representation on the general gasoline engines fuel tank that is installed on of existing technology.
Fig. 2 is the vent valve structural representation of the utility model.
Fig. 3 is cross recessed (overlooking) schematic representation of valve bottom bottom among Fig. 2.
Fig. 4 is (overlooking) schematic representation of disengagement chamber lid embodiment among Fig. 2.
Fig. 5 is disengagement chamber lid embodiment's (overlooking) schematic representation of band " returning " font dividing plate among Fig. 2.
Fig. 6 is disengagement chamber lid embodiment's (overlooking) schematic representation of band " labyrinth " shape dividing plate among Fig. 2.
Fig. 7 is another embodiment (overlooking) schematic representation of the disengagement chamber lid of band " labyrinth " shape dividing plate among Fig. 2.
The view of vent valve when Fig. 8 is the fuel tank small angle inclination.
Fig. 9 closes on the view of vent valve when closing vent valve for fuel tank favours.
The view of vent valve when Figure 10 closes vent valve for fuel tank favours.
Figure 11 is installed in the partial schematic diagram on the general gasoline engines fuel tank for the vent valve of the utility model.
Embodiment
Below in conjunction with accompanying drawing and the embodiment that provides the utility model is further specified.
As shown in Figure 2, valve body 1, the valve bottom 2 of vent valve are fused into the valve pocket I.The top of valve body 1 is integrally formed with breathing pipe 11, and this breathing pipe 11 is communicated with through valve port 12 with the valve pocket I.Valve bottom 2 bottom centre positions are integrally formed with on valve seat 21 that the cross section is the sphere spill and the valve seat 21 and vertically offer cross recess 23, are provided with first vent 22 (as shown in Figure 3) along the center of cross recess 23 in the bottom of valve bottom 2 (also being valve seat 21).On the sphere dimple of valve seat 21, be placed with a steel ball 4, a bottle cap shape valve plug 3 is arranged above steel ball 4, be provided with valve port 12 spheres in the top outer of valve plug 3 and cooperate the needle 31 that can close breathing pipe.Be provided with an elastic member (in the present embodiment for coil spring 8) between the inside top of valve plug 3 top outer and valve pocket I (also being valve body 1), limit big the beating and close vent valve of steel ball 4 unlikely generation when the motor proper functioning.In vent valve (also be appreciated that and be fuel tank 7) run-off the straight or when toppling, steel ball 4 can move along the concave surface of valve seat 21, and can promote valve plug 3 and move up and down to close or to open whole vent valve along valve pocket I inwall.Spielpassung thereby can pass through gas between valve plug 3 and the valve pocket I inwall, the outer wall upper position in the valve pocket I between valve body 1, the valve bottom 2 is embedded with gum cover 6.Shown in figure 11, through gum cover 6, vent valve is snap-fit on the fuel tank 7.
Further; As shown in Figure 2; Below the bottom outside of valve pocket I, also be provided with Oil-gas Separation chamber II; This Oil-gas Separation chamber II is formed with the 2 bottom outside wall hermetica seals of valve bottom by disengagement chamber lid 5, is provided with two second vents 51 (as shown in Figure 4) relatively in the outside of the bottom of Oil-gas Separation chamber II (being on the disengagement chamber lid 5).
Further; Like Fig. 2, Fig. 5 to shown in Figure 7; On disengagement chamber lid 5, also be provided with dividing plate 52 integratedly; Dividing plate 52 is " returning " font (as shown in Figure 5) or " labyrinth " shape (like Fig. 6, shown in Figure 7), and both sides or two ends (like Fig. 6, " labyrinth " shown in Figure 7 shape dividing plate) at dividing plate 52 (" returning " font dividing plate as shown in Figure 5) are provided with second vent 51.
To Fig. 7, the profile in the Oil-gas Separation chamber that embodiment provides is cylindrical body in conjunction with Fig. 4, but this Oil-gas Separation chamber also can become inverted cone or other shapes in practical application, all should fall into the rights protection scope of the utility model.
As shown in Figure 5, the inboard of bottom II in the Oil-gas Separation chamber of disengagement chamber lid 5 is provided with the both sides that " returning " font dividing plate 52, the second vents 51 are positioned at " returning " font dividing plate 52, the passage that 52 formation of dividing plate can supply fuel oil or gas to pass through.Like Fig. 6, shown in Figure 7, as the embodiment of the dividing plate 52 of other two kinds of " labyrinth " shapes, second vent 51 is set at the in-out end both sides in " labyrinth ".The setting of dividing plate 52; Can guarantee that the liquid fuel of scurrying into Oil-gas Separation chamber II dropped to the bottom of disengagement chamber lid 5 and is back to fuel tank through second vent 51 in stopping repeatedly of dividing plate 52; Balance is shaken the variation in pressure that in fuel tank, produces because of fuel oil effectively, and the prevention liquid fuel scurries into breathing pipe 11 through vent valve and then the entering canister makes the canister inefficacy or gets into the proper functioning that gas handling system influences motor.
Like Fig. 8 to shown in Figure 10, respectively explanation when the fuel tank small angle inclination, tilt to vent valve near the threshold state of closing and when tilting to the vent valve buttoned-up status in the vent valve steel ball 4 in sphere spill valve seat 21 location status and pressure spring 8 thereof and the valve plug of ejection simultaneously 3 so that drive the different conditions that needle 31 moves to valve port 12.In the state shown in Figure 10, thus needle 31 fully and valve port 12 sealing close vent valve, make the liquid fuel in the fuel tank 7 can not tilt or get into breathing pipe not topple over the time and then get in the miscellaneous part because of fuel tank.
Shown in figure 11; Fuel tank 7 is provided with vent valve mounting hole 71; This mounting hole 71 and gum cover 6 interference fit; Vent valve closely is installed on the mounting hole 71, and breathing pipe 11 is positioned at the top outer of fuel tank 7 and connects to canister or gas handling system, and second vent 51 is exposed to the above space of pasta in the fuel tank 7.The top outer space of fuel tank 7 has been saved in such installation, does not also influence the attractive in appearance and commodity of petrol engine or its working machine complete machine simultaneously.
Claims (8)
1. vent valve that is installed on the general gasoline engines fuel tank; Be sealed to form valve pocket by valve body, valve bottom, the valve body top is provided with breathing pipe, and this breathing pipe is communicated with through a valve port with valve pocket; Valve bottom bottom is provided with the spill valve seat; Put a steel ball on the valve seat, a bottle cap shape valve plug and valve pocket Spielpassung are arranged above steel ball, be provided with in the top outer of valve plug and cooperate the needle that to close breathing pipe with valve port; Valve bottom bottom is provided with first vent simultaneously and is communicated with valve pocket, it is characterized in that: be provided with an elastic member between valve plug top outer and the valve pocket inside top.
2. vent valve as claimed in claim 1; It is characterized in that: this vent valve also comprises the Oil-gas Separation chamber; This Oil-gas Separation chamber is formed with said valve bottom bottom seals by the disengagement chamber lid; Bottom at said disengagement chamber lid is provided with second vent, and second vent links to each other with valve pocket through first vent.
3. vent valve as claimed in claim 2; It is characterized in that: the bottom of said disengagement chamber lid also is provided with " returning " font or " labyrinth " shape dividing plate in inboard, Oil-gas Separation chamber; Said second vent is positioned at the both sides of " going back to " font dividing plate or the two ends of " labyrinth " shape dividing plate, forms the passage that can supply fuel oil or gas to pass through between dividing plate.
4. according to claim 1 or claim 2 vent valve, it is characterized in that: said elastic member is a coil spring.
5. vent valve as claimed in claim 2; It is characterized in that: said valve body and valve bottom, said disengagement chamber lid and the mutual welding respectively of valve bottom bottom outside wall; Said breathing pipe and valve body are integrally formed and be connected to canister, and said second vent is exposed to the above space of fuel tank pasta.
6. according to claim 1 or claim 2 vent valve, it is characterized in that: on the valve pocket outer wall, be embedded with gum cover between said valve body, the valve bottom, said vent valve is snap-fit at the top of fuel tank through gum cover.
7. according to claim 1 or claim 2 vent valve, it is characterized in that: said valve seat is integrally formed at valve bottom bottom centre position, and its cross section is the sphere spill and is that central longitudinal is to offering cross recess with said first vent.
8. vent valve according to claim 1 and 2 is characterized in that: fitting surface is a sphere between the valve port on needle on the said valve plug and the said valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200181342U CN202451322U (en) | 2012-01-16 | 2012-01-16 | Vent valve installed on general gasoline engine fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200181342U CN202451322U (en) | 2012-01-16 | 2012-01-16 | Vent valve installed on general gasoline engine fuel tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202451322U true CN202451322U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200181342U Expired - Lifetime CN202451322U (en) | 2012-01-16 | 2012-01-16 | Vent valve installed on general gasoline engine fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202451322U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306867A (en) * | 2013-06-25 | 2013-09-18 | 苏州圆能动力科技有限公司 | Anti-dumping valve |
| CN103383006A (en) * | 2013-05-28 | 2013-11-06 | 东风汽车公司 | Overturn-preventing valve and use method thereof |
| CN106382170A (en) * | 2016-10-26 | 2017-02-08 | 江苏大学 | Internal gradient valve having automatic sealing position adjusting function |
| CN109944798A (en) * | 2019-04-04 | 2019-06-28 | 烟台菱辰能源有限公司 | Six leaf Roots type superchargers |
| CN112407305A (en) * | 2020-11-03 | 2021-02-26 | 中国直升机设计研究所 | Breather valve for helicopter fuel system |
| WO2021189812A1 (en) * | 2020-03-25 | 2021-09-30 | 浙江双良汽车零部件有限公司 | External fuel pump and valve seat for fuel pump |
| CN113464332A (en) * | 2021-08-25 | 2021-10-01 | 北京福田戴姆勒汽车有限公司 | Oil supply system for vehicle and vehicle |
-
2012
- 2012-01-16 CN CN2012200181342U patent/CN202451322U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383006A (en) * | 2013-05-28 | 2013-11-06 | 东风汽车公司 | Overturn-preventing valve and use method thereof |
| CN103383006B (en) * | 2013-05-28 | 2015-08-12 | 东风汽车公司 | A kind of overturn-preventing valve and using method thereof |
| CN103306867A (en) * | 2013-06-25 | 2013-09-18 | 苏州圆能动力科技有限公司 | Anti-dumping valve |
| CN103306867B (en) * | 2013-06-25 | 2015-06-24 | 苏州圆能动力科技有限公司 | Anti-dumping valve |
| CN106382170A (en) * | 2016-10-26 | 2017-02-08 | 江苏大学 | Internal gradient valve having automatic sealing position adjusting function |
| CN109944798A (en) * | 2019-04-04 | 2019-06-28 | 烟台菱辰能源有限公司 | Six leaf Roots type superchargers |
| CN109944798B (en) * | 2019-04-04 | 2023-11-17 | 烟台东德氢能技术有限公司 | Six-blade Roots supercharger |
| WO2021189812A1 (en) * | 2020-03-25 | 2021-09-30 | 浙江双良汽车零部件有限公司 | External fuel pump and valve seat for fuel pump |
| US11773836B2 (en) | 2020-03-25 | 2023-10-03 | Zhejiang Shuangliang Automobile Parts Co., Ltd. | External fuel pump and valve seat for the fuel pump |
| CN112407305A (en) * | 2020-11-03 | 2021-02-26 | 中国直升机设计研究所 | Breather valve for helicopter fuel system |
| CN113464332A (en) * | 2021-08-25 | 2021-10-01 | 北京福田戴姆勒汽车有限公司 | Oil supply system for vehicle and vehicle |
| CN113464332B (en) * | 2021-08-25 | 2022-08-23 | 北京福田戴姆勒汽车有限公司 | Oil supply system for vehicle and vehicle |
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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: CHONGQING RATO POWER MANUFACTURING CO., LTD. Free format text: FORMER OWNER: CHONGQING RUNTONG DONGLI CO., LTD. Effective date: 20131122 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 402247 JIULONGPO, CHONGQING TO: 402247 JIANGJIN, CHONGQING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131122 Address after: 402247 B District, industrial park, Jiangjin District, Chongqing Patentee after: Chongqing RATO Power Co., Ltd. Address before: 402247 Chongqing Jiulongpo District Jiangjin Shuangfu Industrial Park B District Patentee before: Chongqing Runtong Dongli Co., Ltd. |
|
| 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: Gas vent valve arranged on fuel oil tank of universal gasoline engine Effective date of registration: 20140128 Granted publication date: 20120926 Pledgee: China Co truction Bank Corp Jiangjin branch Pledgor: Chongqing RATO Power Co., Ltd. Registration number: 2014500000003 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151201 Address after: 402260 B District, industrial park, Jiangjin District, Chongqing Patentee after: CHONGQING RUNTONG TECHNOLOGY CO., LTD. Address before: 402247 B District, industrial park, Jiangjin District, Chongqing Patentee before: Chongqing RATO Power Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |