CN202007722U - Gas vent valve arranged on fuel oil tank of universal gasoline engine - Google Patents
Gas vent valve arranged on fuel oil tank of universal gasoline engine Download PDFInfo
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- CN202007722U CN202007722U CN2011200530372U CN201120053037U CN202007722U CN 202007722 U CN202007722 U CN 202007722U CN 2011200530372 U CN2011200530372 U CN 2011200530372U CN 201120053037 U CN201120053037 U CN 201120053037U CN 202007722 U CN202007722 U CN 202007722U
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- valve
- vent
- fuel tank
- gas
- plug
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Abstract
The utility model provides a gas vent valve arranged on a fuel oil tank of a universal gasoline engine. A valve body and a valve cover are sealed to form a valve cavity, the top of the valve body is provided with a first gas duct, the first gas duct is communicated with the valve cavity through a valve port, the bottom of the valve cover is provided with a concave valve seat, a bottle cap-shaped valve plug is arranged above the valve seat, a valve needle which is matched with the valve port and can close the first gas duct is arranged outside the top of the valve plug, a steel ball is arranged between the valve plug and the valve seat, the steel ball can freely move and can ensure the valve plug to move up and down along the inner wall of the valve plug, a gap is reserved between the valve plug and the inner wall of the valve cavity, gas can flow through the gap, the gas vent valve also comprises an oil-gas separation cavity formed through surrounding a separation cavity cover and the outer side wall of the bottom of the valve cavity, the bottom of the valve cover is provided with a first gas vent hole communicated with the valve cavity, and the bottom of the oil-gas separation cavity is provided with a second gas vent hole. The gas vent valve is easy to close and moves sensitively; besides, fuel oil can be effectively prevented from entering the first gas duct to enter a carbon tank, the occupied space can be reduced, and the integral aesthetic feeling and the commerciality are improved.
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 communicates with atmosphere and adopts two kinds of ways usually: the one, communicate with atmosphere by fuel tank cap; The one, by 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 may 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 (the canister of mentioning in this specification generally is set behind valve again, content for 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 by petrol engine intake system that is attracted in the canister is transported to gas handling system, and enters 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 enter canister by vent valve and make that activated adsorption material (as active carbon) lost efficacy in the canister, be provided with the control valve unit that stops fuel to enter 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.
Prior art is installed on the vent valve (as shown in Figure 1) on the general gasoline engines fuel tank, by valve body, valve gap, bottle cap shape valve plug and steel ball are formed, valve body becomes valve pocket with valve bonnet seal, establish first air vent on the valve body, valve gap is provided with second air vent, on second air vent of the bottom outside of valve gap, be set with the installation gum cover, valve plug is positioned at valve pocket, the top outer of valve plug is provided with needle and matches with the valve port of valve interior wall with first air vent 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 gap.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, as needle skew is arranged slightly, can not seal fully between needle and the valve port, fuel oil can enter canister by 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 and the valve port closure 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, its resistance of start 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, the vent valve of installing on the general gasoline engines fuel tank, 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, 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 enter first air vent by valve port and enter canister canister was lost efficacy, and to this situation, the vent valve of prior art can not solve.Problem at aforementioned last existence, existing solution is: after vent valve is installed in the fuel tank top, weld an independently Oil-gas Separation chamber in the inboard at fuel tank top below vent valve, this split cavity communicates with the fuel tank inner space by the vent of its bottom.But this also brings other problems: in the inside top welding of fuel tank, technology, structural environment complexity, welding condition harshness have increased manufacture difficulty, have strengthened manufacture cost; Simultaneously, gross distortion may take place because of welding in the top outer of fuel tank, influences the overall appearance and the commodity of general gasoline engines or its working machine.
The model utility content
For overcoming the above-mentioned deficiency of prior art, the utility model type propose a kind of when fuel tank tilts or topples over, be easy to close, be active in one's movements be installed on vent valve on the general gasoline engines fuel tank, and its can effectively prevent the petrol engine proper functioning time fuel oil scurry into first air vent because of concussion and enter canister and can reduce space hold, increase overall aesthetic and commerciality.
For achieving the above object, 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 by valve body, valve bonnet seal forms valve pocket, the valve body top is provided with first air vent, this first air vent is communicated with by a valve port with valve pocket, the valve gap bottom is provided with the spill valve seat, one bottle cap shape valve plug is arranged above valve seat, be provided with in the top outer of valve plug and cooperate the needle that to close first air vent with valve port, place a steel ball between valve plug and the valve seat, steel ball can move freely and valve plug is moved up and down along the valve pocket inwall, the gapped gas that passes through between valve plug and the valve pocket inwall, this vent valve also comprises the Oil-gas Separation chamber, surround by the bottom outside wall of disengagement chamber lid and valve pocket and to form, be provided with first vent that is communicated with valve pocket in the valve gap bottom, be provided with second vent in bottom, Oil-gas Separation chamber.
Because on traditional vent valve basis, added an Oil-gas Separation chamber, enter 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 be independently realize preventing that by vent valve liquid fuel from scurrying into the situation that vent valve enters canister because of concussion, compare at fuel tank inside top welding oil gas disengagement chamber with tradition, simplicity of design, the easy realization of technology can't influence the overall appearance or the commodity of general gasoline engines or its working machine, and manufacture cost is also extremely low.
Technological scheme 2: on the basis of such scheme 1, 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.
Technological scheme 3: on the basis of such scheme 2, be installed on the vent valve on the general gasoline engines fuel tank, the quantity of its second vent is designed to two.
The design that scheme 1, scheme 3 are such, 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 repeatedly dividing plate, thereby the kinetic energy of its rising further reduces and makes it drop on the bottom of disengagement chamber lid fully under the effect of gravity and be back in the fuel tank and avoid entering first air vent by the valve port of vent valve.
Technological scheme 4: on the basis of scheme 1, further improve, valve body and valve gap, disengagement chamber lid and the mutual welding respectively of valve gap bottom outside wall, first air vent 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 vent valve that is installed on the general gasoline engines fuel tank of the present utility model is being embedded with the installation gum cover on the valve pocket outer wall between its valve body, the valve gap, the attachment face that gum cover is installed is positioned at the upper position of valve pocket.
By the design of scheme 4, scheme 5, can guarantee the sealing of valve pocket, Oil-gas Separation chamber, first air vent; Be connected to canister and can realize the absorptive collection of gaseous fuel, realize environmental requirement; The setting of gum cover is installed and is positioned at the design of valve pocket upper position, both made things convenient for the installation of vent valve in the utility model, also can effectively save vent valve, strengthen the attractive in appearance and commercial of complete machine the taking up room of fuel tank top.
Technological scheme 6: on the basis of scheme 1, valve seat is integrally formed at the valve gap bottom centre position, and it is shaped as the sphere spill and vertically offers cross recess, first vent and the coaxial setting in cross recess medial axis.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, moves sensitiveer; Cross recessed is offered and is provided with axis ground with first vent, can guarantee that the fuel oil of gaseous state enters valve pocket by valve gap smoothly.
Technological scheme 7: on the basis of scheme 1, be installed on the vent valve on the general gasoline engines fuel tank, further improve, fitting surface is a sphere between needle on its valve plug and the valve port on the valve body.She Ji benefit is like this, even needle has small skew, because it is that sphere cooperates with valve port, and also can be under the effect of the thrust that steel ball makes progress and be offset in the spacing correction down of sphere needle and valve port are closely cooperated, finish closing motion.
Description of drawings
Fig. 1 is the vent valve structural representation on the general gasoline engines fuel tank of being installed on of prior art.
Fig. 2 is a vent valve structural representation of the present utility model.
Fig. 3 is cross recessed (overlooking) schematic representation of valve gap bottom among Fig. 2.
Fig. 4 is (overlooking) schematic representation of disengagement chamber lid and " returning " font dividing plate embodiment among Fig. 2.
Fig. 5 is (overlooking) schematic representation of disengagement chamber lid and " labyrinth " shape dividing plate embodiment among Fig. 2.
Fig. 6 is (overlooking) schematic representation of another embodiment of disengagement chamber lid and " labyrinth " shape dividing plate among Fig. 2.
The view of vent valve when Fig. 7 is the fuel tank small angle inclination.
Fig. 8 closes on the view of vent valve when closing vent valve for fuel tank favours.
The view of vent valve when Fig. 9 closes vent valve for fuel tank favours.
Figure 10 is that vent valve of the present utility model is installed in the partial schematic diagram on the general gasoline engines fuel tank.
Among the figure, 1 is valve body, and 11 is first air vent, and 12 is valve port, 2 is valve gap, and 21 is valve seat, and 22 is first vent, and 23 is cross recess, 24 is second air vent, and 3 is valve plug, and 31 is needle, 4 is steel ball, and 5 are the disengagement chamber lid, and 51 is second vent, 52 is dividing plate, and 6 for installing gum cover, and 7 is fuel tank, 71 is the vent valve mounting hole, and I is a valve pocket, II Oil-gas Separation chamber.
Embodiment
Below in conjunction with accompanying drawing and the embodiment that provides the utility model is further specified.
As shown in Figure 2, the valve body 1 of vent valve, valve gap 2 is fused into the valve pocket I, the top of valve body 1 is integrally formed with first air vent 11, this first air vent 11 is communicated with by valve port 12 with the valve pocket I, valve gap 2 bottom centre positions are integrally formed with on the valve seat 21 of sphere spill and the valve seat 21 and vertically offer cross recess 23, be provided with first vent 22 with cross recess 23 in the bottom of valve gap 2 with axis ground, one bottle cap shape valve plug 3 is arranged above valve seat 21, be provided with valve port 12 spheres in the top outer of valve plug 3 and cooperate the needle 31 that to close first air vent, place a steel ball 4 between valve plug 3 and the valve seat 21, steel ball 4 can move freely and valve plug 3 is moved up and down along valve pocket I inwall, the gapped gas that passes through between valve plug 3 and the valve pocket I inwall, valve body 1, outer wall upper position in the valve pocket I between the valve gap 2 is embedded with installation gum cover 6, Oil-gas Separation chamber II is surrounded with the bottom outside wall welding of valve pocket I by disengagement chamber lid 5 and is formed, bottom in Oil-gas Separation chamber II is provided with dividing plate 52, respectively establishes one second vent 51 in the both sides of dividing plate 52.To Fig. 6, the Oil-gas Separation chamber that embodiment provides is cylindrical in conjunction with Fig. 4, but this Oil-gas Separation chamber also can become turbination, square or other shapes in actual applications, all should fall into rights protection scope of the present utility model.
Bottom in the valve pocket I increases an Oil-gas Separation chamber II, can ventilation, oil return and balance pressure difference and solving well prevent that the fuel oil concussion from scurrying into the problem of first air vent 11, and constitutional detail is few, simple in structure, easy for installationly can simplify the fuel tank production technology, reduce manufacture cost, do not influence the attractive in appearance and commodity of petrol engine or its working machine complete machine simultaneously; Take sphere to contact the reliability that can guarantee that valve cuts out between needle 31 and the valve port 12, though have at needle 31 under the situation of minor shifts still can active homing and with valve port 12 sealings; Valve seat 21 is made as the sphere spill, can reduce the action resistance of steel ball 4, makes the action of valve plug 3 sensitiveer and drive needle 31 and open and close vent valve delicately.
As Fig. 2, shown in Figure 3, valve seat 21 vertically has cross recess 23, the first vents 22 and is provided with axis ground with cross recess 23, and cross recess 23 can guarantee that the gas flow between first vent 22 and the valve pocket I is more unobstructed.
As shown in Figure 4, the bottom of disengagement chamber lid 5 is provided with the both sides that " going back to " font dividing plate 52, the second vents 51 are positioned at " returning " font dividing plate 52 in the inboard of Oil-gas Separation chamber II, the passage that 52 formation of dividing plate can supply fuel oil or gas to pass through.As Fig. 5, shown in Figure 6, as the embodiment of other two kinds of dividing plates 52, dividing plate 52 is configured to " labyrinth " shape of two kinds of forms, and second vent 51 is positioned at the turnover port of " labyrinth " shape dividing plate 52.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 by second vent 51 in stopping repeatedly of dividing plate 52, the variation in pressure that in fuel tank, produces because of fuel oil concussion of balance effectively, and stop liquid fuel to scurry into first air vent 11 by vent valve and then enter canister canister was lost efficacy.
As Fig. 7 to shown in Figure 9, respectively explanation when the fuel tank small angle inclination, tilt to vent valve steel ball 4 location status and ejection valve plug 3 and then drive the state that needle 31 moves to valve port 12 thereof in sphere spill valve seat 21 in the vent valve and when tilting to the vent valve buttoned-up status near the threshold state of closing.In the state shown in Figure 9, thereby needle 31 can be closed vent valve with valve port 12 sealings fully, enters canister when liquid fuel in the fuel tank can or not toppled over because of the fuel tank inclination.
As shown in figure 10, fuel tank 7 is provided with vent valve mounting hole 71, this mounting hole 71 and installation gum cover 6 interference fit, first air vent 11 is positioned at the top outer of fuel tank 7 and connects to canister, 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.
The above only is preferred embodiment of the present utility model, is not that structure of the present utility model is imposed any restrictions.Every foundation technical spirit of the present utility model all still belongs within the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (7)
1. vent valve that is installed on the general gasoline engines fuel tank, by valve body, valve bonnet seal forms valve pocket, the valve body top is provided with first air vent, this first air vent is communicated with by a valve port with valve pocket, the valve gap bottom is provided with the spill valve seat, one bottle cap shape valve plug is arranged above valve seat, be provided with in the top outer of valve plug and cooperate the needle that to close first air vent with valve port, place a steel ball between valve plug and the valve seat, steel ball can move freely and valve plug is moved up and down along the valve pocket inwall, the gapped gas that passes through between valve plug and the valve pocket inwall, it is characterized in that: this vent valve also comprises the Oil-gas Separation chamber, surround by the bottom outside wall of disengagement chamber lid and valve pocket and to form, be provided with first vent that is communicated with valve pocket, bottom the Oil-gas Separation chamber, be provided with second vent in described valve gap bottom.
2. the vent valve that is installed on the general gasoline engines fuel tank according to claim 1, it is characterized in that: the bottom of described disengagement chamber lid also is provided with " returning " font or " labyrinth " shape dividing plate in inboard, Oil-gas Separation chamber, described 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.
3. the vent valve that is installed on the general gasoline engines fuel tank according to claim 2 is characterized in that: the quantity of described second vent is two.
4. the vent valve that is installed on the general gasoline engines fuel tank according to claim 1, it is characterized in that: described valve body and valve gap, described disengagement chamber lid and the mutual welding of valve gap bottom outside wall, described first air vent and valve body are integrally formed and be connected to canister, and described second vent is exposed to the above space of fuel tank pasta.
5. the vent valve that is installed on the general gasoline engines fuel tank according to claim 1 is characterized in that: be embedded with the installation gum cover between described valve body, the valve gap on the valve pocket outer wall, the attachment face of described installation gum cover is positioned at the upper position of valve pocket.
6. the vent valve that is installed on the general gasoline engines fuel tank according to claim 1, it is characterized in that: described valve seat is integrally formed at the valve gap bottom centre position, for the sphere spill and vertically offer cross recess, described first vent and the coaxial setting in described cross recess medial axis.
7. the vent valve that is installed on the general gasoline engines fuel tank according to claim 1 is characterized in that: fitting surface is a sphere between the valve port on needle on the described valve plug and the described valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200530372U CN202007722U (en) | 2011-03-03 | 2011-03-03 | Gas vent valve arranged on fuel oil tank of universal gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200530372U CN202007722U (en) | 2011-03-03 | 2011-03-03 | Gas vent valve arranged on fuel oil tank of universal gasoline engine |
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| Publication Number | Publication Date |
|---|---|
| CN202007722U true CN202007722U (en) | 2011-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200530372U Expired - Lifetime CN202007722U (en) | 2011-03-03 | 2011-03-03 | Gas vent valve arranged on fuel oil tank of universal gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202007722U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937058A (en) * | 2012-12-03 | 2013-02-20 | 上汽通用五菱汽车股份有限公司 | Novel carbon tank structure |
| CN103363136A (en) * | 2013-08-02 | 2013-10-23 | 苏州圆能动力科技有限公司 | External anti-tipping valve |
| CN103383006A (en) * | 2013-05-28 | 2013-11-06 | 东风汽车公司 | Overturn-preventing valve and use method thereof |
| CN107461481A (en) * | 2017-08-21 | 2017-12-12 | 安徽江淮汽车集团股份有限公司 | A kind of automobile rear axle vent valve |
| CN109424415A (en) * | 2017-08-29 | 2019-03-05 | 郑州宇通客车股份有限公司 | Throttle valve and engine-cooling system, the vehicle for using the throttle valve |
| CN113251172A (en) * | 2021-05-11 | 2021-08-13 | 亚普汽车部件股份有限公司 | Float-free mechanical valve with pressure maintaining and anti-overturning leakage functions |
| CN113291478A (en) * | 2021-05-29 | 2021-08-24 | 沈阳航天新光集团有限公司 | Gravity rotating valve |
| CN113431715A (en) * | 2021-06-25 | 2021-09-24 | 江西昌河汽车有限责任公司 | Automobile fuel tank hydrops box |
-
2011
- 2011-03-03 CN CN2011200530372U patent/CN202007722U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937058A (en) * | 2012-12-03 | 2013-02-20 | 上汽通用五菱汽车股份有限公司 | Novel carbon tank structure |
| 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 |
| CN103363136A (en) * | 2013-08-02 | 2013-10-23 | 苏州圆能动力科技有限公司 | External anti-tipping valve |
| CN103363136B (en) * | 2013-08-02 | 2016-01-20 | 苏州圆能动力科技有限公司 | A kind of external anti-dumping pressure control valve |
| CN107461481A (en) * | 2017-08-21 | 2017-12-12 | 安徽江淮汽车集团股份有限公司 | A kind of automobile rear axle vent valve |
| CN109424415A (en) * | 2017-08-29 | 2019-03-05 | 郑州宇通客车股份有限公司 | Throttle valve and engine-cooling system, the vehicle for using the throttle valve |
| CN113251172A (en) * | 2021-05-11 | 2021-08-13 | 亚普汽车部件股份有限公司 | Float-free mechanical valve with pressure maintaining and anti-overturning leakage functions |
| CN113291478A (en) * | 2021-05-29 | 2021-08-24 | 沈阳航天新光集团有限公司 | Gravity rotating valve |
| CN113431715A (en) * | 2021-06-25 | 2021-09-24 | 江西昌河汽车有限责任公司 | Automobile fuel tank hydrops box |
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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: 20131204 |
|
| 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: 20131204 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 |
Denomination of utility model: Gas vent valve arranged on fuel oil tank of universal gasoline engine Effective date of registration: 20140128 Granted publication date: 20111012 Pledgee: China Co truction Bank Corp Jiangjin branch Pledgor: Chongqing RATO Power Co., Ltd. Registration number: 2014500000003 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151210 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 |
Granted publication date: 20111012 |
|
| CX01 | Expiry of patent term |