CN201844073U - One-way membrane valve - Google Patents
One-way membrane valve Download PDFInfo
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- CN201844073U CN201844073U CN2010205637653U CN201020563765U CN201844073U CN 201844073 U CN201844073 U CN 201844073U CN 2010205637653 U CN2010205637653 U CN 2010205637653U CN 201020563765 U CN201020563765 U CN 201020563765U CN 201844073 U CN201844073 U CN 201844073U
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Abstract
The utility model relates to a one-way membrane valve comprising a plate which is arranged on a gas channel at interval, at least one bulge is formed on the plate, an inclined surface is formed on the top of the bulge, a valve hole communicated with the gas channel is formed on the inclined surface, a flexible membrane is fixed on the plate and extends to the inclined surface to cover a valve hole, and the membrane is drawn by the negative pressure at one end of the gas channel so as to be lifted elastically in the single direction, thus switching on the valve hole.
Description
Technical field
The utility model provides a kind of Non-return air valve, particularly about a kind of one-way membrane plate valve that is interval on the gas channel, and relates to the squint face and the valve opening of this air valve and the diaphragm on the squint face.
Background technique
Be used at present reducing in the correlation technique of toxic substance discharging of vapour, locomotive engine waste gas, include a kind of technology that imports secondary air, import secondary air, cause CO, HC and NO in the exhaust gas discharged at the toxic emission end of engine
X(nitrogen oxide) is under oxygen enrichment state and proper temperature, via Cat Catalytic Converter (CATALYTIC CONVERTER) oxidation in the baffler (SILENCER) or be reduced into harmless CO
2, H
2O, N
2And O
2, purify engine exhaust according to this.The technology of above-mentioned importing secondary air, at the external SAS Secondary Air Supply pipe of engine exhaust discharge end, and be situated between on the gas channel in this SAS Secondary Air Supply pipe and establish a Non-return air valve, the valve of this air valve of negative exhaust pressure priming by engine, and making extraneous fresh air be supplied to the toxic emission end via this SAS Secondary Air Supply pipe and Non-return air valve, the waste gas by Non-return air valve blocking-up engine emissions leaks to ambient atmosphere via the SAS Secondary Air Supply pipe simultaneously.
And know, existing technology about above-mentioned Non-return air valve, as seen be exposed in TOHKEMY P2007-333106A patent case, on the air valve pedestal, form a valve opening, and pedestal one side is established the plate washer of a metal spring leaf and a restriction reed opening angle, this reed hides on valve opening, and plate washer is shielded on the reed; TOHKEMY P2008-2595A patent case has also disclosed a Non-return air valve, form a valve opening and a catching groove on the air valve pedestal, and pedestal one side establishes a metal spring leaf, this reed hides on valve opening, and extend in the catching groove, cause reed to accept catching groove restriction opening angle; Above-mentioned disclosed various Non-return air valves all are to lift pendulum by the negative pressure priming elasticity of spring leaf that the engine exhaust discharge end is produced, to open and to close this valve opening; Yet, its shortcoming is that described reed produces the gap easily and between the valve opening after lifting pendulum for a long time, and described reed all is to utilize metallic material to make, the sensitivity that causes reed to accept the negative pressure priming and lift pendulum is difficult to promote, and exists the problem that is difficult to save cost of production.
In view of this, in the existing comparatively previous Non-return air valve technology, also disclosing has the diaphragm that utilizes the heat resistant type plastics to make to replace the technology of above-mentioned metal spring leaf, be found in No. 1316109 patent case of TaiWan, China, be that a plurality of openings that many groups are arranged in the form of a ring are set on the partition wall of air valve, and the many groups of round plastic diaphragms that can hide described opening, open and close described opening by the negative pressure priming diaphragm that the engine exhaust discharge end is produced; Yet its shortcoming is, described diaphragm also produces the gap easily and between the opening after lifting pendulum for a long time, and a plurality of openings of described each group all need each self-configuring one diaphragm, and volume increase system on foot goes up complexity and cost; In addition, the fixed end of above-mentioned diaphragm is to be positioned at the diaphragm center of circle, so the engine negative pressure need attract diaphragm distortion and be horn-like, could open described opening, and obviously easy this diaphragm that detracts is accepted the negative pressure priming and the sensitivity of lifting pendulum, is improved so need badly.
Summary of the invention
The purpose of this utility model is to overcome in the above-mentioned prior art, lifts the problem that is easy to generate the gap behind the pendulum for a long time, accepts the problem that the sensitivity of negative pressure priming is difficult to promote, and the problem that is difficult to save cost of production and reduces the complexity that produces.
For reaching above-mentioned purpose, one-way membrane plate valve of the present utility model comprises:
One plate, be interval on the gas channel, and this plate bilateral has an interior edge face and an exterior edge face respectively, this plate can be by polyphenylene sulfide (the POLYPHENYLENE SULFIDEETHER of 70% weight portion, PPS) glass fibre (the GLASS FIBER of interpolation 30% weight portion, GF) made, to promote heat resistance, durable working life and the mechanical strength of plate;
At least one projection is formed on this interior edge face, and this projection top formation one extends to the squint face of this interior edge face along single direction;
At least one valve opening is formed between this squint face and this exterior edge face, and is communicated with this gas channel; And
One flexible membrane, be fixed on this interior edge face, and this diaphragm extends to and hides this valve opening on this squint face, and make this diaphragm form an elastic bend part in this interior edge face and this squint face joining place, order about this diaphragm and push this valve opening, this diaphragm is also accepted the negative pressure priming of this gas channel one end and unidirectional elasticity is lifted pendulum, to open this valve opening.
In view of the above, this diaphragm produces the thrust of squint face direction on one day via curved part, force diaphragm to be adjacent to the squint face of this valve opening periphery, to promote the tightness between valve opening and the diaphragm, and can accept vacuum suction and produce bending along single axial and lift pendulum, the sensitivity of lifting pendulum to promote that diaphragm is accepted the negative pressure priming; In addition, by the described valve opening on single this plate of diaphragm control, can save the diaphragm required number of spare parts of equity pairing valve opening one by one, to reduce the complexity that it produces.
In addition, the utility model also comprises:
Described projection can be a plurality of, and described projection is adjacent and be symmetrically formed on this interior edge face, and the central position of this diaphragm is fixed on this interior edge face between the described projection, and makes this diaphragm both-end hide described valve opening respectively.
Described gas channel is communicated in one and gives between a gas end and the negative pressure end, and this valve opening forms one in the exterior edge face of this plate and is communicated with port that this gives the gas end, and this valve opening forms a valve port that is communicated with this negative pressure end in the interior edge face of this plate, and this diaphragm hides on this valve port.Wherein, this negative pressure end is a toxic emission end of an engine, should be a secondary air inlet end of this engine to the gas end.
Form a positioning hole on the plate between the described projection, this diaphragm central position forms a perforation, and wears a fastener in this positioning hole and this perforation, fastening this plate and this diaphragm, and then the fixing plate end face of diaphragm central position between described two valve openings.
Described fastener is made by heat resistant type rubber, and this fastener can be a rivet or an embolism.
Described diaphragm is made by the heat resistant type plastics, and these heat resistant type plastics are that (POLYIMIDE PI), promoting the heat resistance and the durable working life of diaphragm, and saves cost of production to polyimide, and promotes further that diaphragm is accepted the negative pressure priming and the sensitivity of lifting pendulum.
Described diaphragm is the strip of sheet profile, lifts pendulum and make the diaphragm both-end produce bending along single axial separately.
Yet, for can be clearly and fully disclose the utility model, and give the legend of enumerating preferable enforcement, to describe its mode of execution in detail as described later:
Description of drawings
Fig. 1 is the stereogram of the utility model preferred embodiment;
Fig. 2 is the configuration schematic diagram of the plate of Fig. 1;
Fig. 3 is the three-dimensional exploded view of Fig. 1;
Fig. 4 is the plan view of Fig. 1;
Fig. 5 is the A-A sectional view of Fig. 4;
Fig. 6 is the additional enforcement phase diagram of Fig. 5;
Fig. 7 is the additional enforcement phase diagram of Fig. 4;
Fig. 8 is another additional enforcement phase diagram of Fig. 4;
Fig. 9 is that cut-away view is amplified in the part of the housing of Fig. 2;
Figure 10 is time user mode figure of Fig. 9.
Description of reference numerals: 1-plate; The 11-exterior edge face; The 12-interior edge face; 121,123-projection; 122,124-squint face; The 13-positioning hole; 14-is axial; 21,22,23,24-valve opening; 211,221-port; 212,222-valve port; The 3-diaphragm; The 31-central position; The 32-perforation; 33,34-valve; 35,36-curved part; The 4-gas channel; 41-gives the gas end; 42-negative pressure end; 5-SAS Secondary Air Supply pipe; The 50-engine; 51-gives gas port; 52-toxic emission end; The 6-housing; The outer air chamber of 61-; Air chamber in the 62-; 7-ends airfilled ring; The 8-fastener; The 81-rivet; The 82-embolism; The 9-baffler.
Embodiment
First sight is shown in Figure 1, discloses the stereogram of the utility model preferred embodiment, and cooperates Fig. 3 to Fig. 5 that one-way membrane plate valve of the present utility model is described, comprises a plate 1, at least one projection 121, at least one valve opening 21 and a flexible membrane 3; This plate 1 can be by polyphenylene sulfide (the POLYPHENYLENE SULFIDE ETHER of 70% weight portion, PPS) glass fibre (the GLASS FIBER of interpolation 30% weight portion, GF) made, and make plate 1 have preferable heat-resistant stable, flame retarding, chemical resistance, durable working life and excellent mechanical intensity; This plate 1 profile that can be rectangle, and plate 1 is interval on the gas channel 4, and this gas channel 4 is communicated in one and gives between a gas end 41 and the negative pressure end 42, and plate 1 bilateral has an interior edge face 12 and an exterior edge face 11 respectively; In this enforcement, this gas channel 4 can be a SAS Secondary Air Supply pipe 5 (as shown in Figure 2) of a car engine 50, should give gas end 41 can be these SAS Secondary Air Supply pipe 5 one ends be communicated with atmosphere to gas port 51, this negative pressure end 42 can be a toxic emission end 52 of this engine 50, and plate 1 is given between gas port 51 and the toxic emission end 52 at this.In more concrete enforcement, be situated between on this SAS Secondary Air Supply pipe 5 and establish a housing 6 (as shown in Figure 9), and gas channel 4 is by this housing 6, this plate 1 is positioned at this housing 6, and the interval housing 6 inner outer air chambers 61 that are communicated with to gas end 41 that form, and the interior air chamber 62 of a connection negative pressure end 42; This plate 1 peripheral sleeve is provided with one and ends airfilled ring 7, be packed between plate 1 periphery and housing 6 inwalls and make this end airfilled ring 7, should end airfilled ring 7 can be made by fluorine unpigmented rubber (FKM), and airfilled ring 7 has preferable heat resistance, durability and chemical resistance and only make.
This projection 121 is formed at (as Fig. 3 and shown in Figure 5) on this interior edge face 12, and projection 121 tops form one and extend to squint face 122 on the interior edge face 12 along single direction; This valve opening 21 is formed between the squint face 122 and exterior edge face 11 of this plate 1, and is communicated with this gas channel 4 (as shown in Figure 9); Described projection 121 also can be a plurality of, have two projections 121,123 in the present embodiment and be example, illustrate that described two projections 121,123 are adjacent and be symmetrically formed on this interior edge face 12, and lay respectively at the bilateral of plate 1 central authorities, and make the squint face 122,124 of each projection 121,123 and valve opening 21,22 thereof adjacent and symmetrical; This valve opening 21,22 forms one via this port 211,221 to gas end 41 of gas channel 4 connections in the exterior edge face 11 of this plate 1, and valve opening 21,22 forms a valve port 212,222 via gas channel 4 these negative pressure ends 42 of connection in the squint face 122,124 of plate 1.In a specific embodiment, described valve opening 21,22 can be the rectangular opening (as shown in Figure 4) of mutual vicinity and symmetry; In another concrete enforcement, also can between the squint face 122,124 of this plate 1 and exterior edge face 11, form plural rectangle valve opening 21,22,23,24 (as shown in Figures 7 and 8), described valve opening 21,22,23,24 can be longitudinally or is transversely arranged, and the described valve opening 21,23 of plate 1 a central side is symmetrical in the described valve opening 22,24 of plate 1 central opposite side.
This diaphragm 3 is made by the heat resistant type plastics, and these heat resistant type plastics are that (POLYIMIDE PI), and makes diaphragm 3 have preferable heat resistance, wear resistance, anti-creep, radioresistens and durable working life to polyimide; This diaphragm 3 is strip of sheet profile (as shown in Figures 3 and 4), be fixed on the interior edge face 12, and diaphragm 3 extends to this valve opening 21,22 of covering on this squint face 122,124; In the present embodiment, the central position 31 of this diaphragm 3 is fixed in described two projections 121, on the interior edge face 12 between 123, and make diaphragm 3 be exposed to air chamber 62 interior (as shown in Figure 9) in this, and diaphragm 3 both-ends of these central position 31 bilaterals hide respectively in described valve opening 21,22 valve port 212, on 222 (as shown in Figure 5), and make diaphragm 3 in interior edge face 12 and two squint faces 122,124 joining places, accept this squint face 122 respectively, 124 compressings and form an elastic bend part 35,36, can order about these diaphragm 3 both-ends and push valve opening 21 separately, 22, causing diaphragm 3 both-ends to form one respectively can open, close valve port 212,222 valve 33,34; So, this diaphragm 3 can be accepted the negative pressure priming of the negative pressure end 42 of this gas channel 4 in interior air chamber 62, lift pendulum and make described valve 33,34 produce unidirectional elasticity towards negative pressure end 42 directions, with the valve port 212,222 of opening described valve opening 21,22.
Form a positioning hole 13 (as Fig. 3 and shown in Figure 5) on the plate 1 between the squint face 122,124 of described two projections 121,123, be communicated between interior edge face 12 and the exterior edge face 11, the central position 31 of this diaphragm 3 forms the perforation 32 of a corresponding positioning hole 13, and positioning hole 13 and bore a hole and be equipped with a fastener 8 that utilizes heat resistant type rubber to make in 32, to fasten this plate 1 and diaphragm 3, and then fixedly diaphragm 3 central positions 31 are on the interior edge face 12 between described two squint faces 122,124, and in fact this fastener 8 can be a rivet 81 or an embolism 82 (as shown in Figure 6); In the present embodiment, described positioning hole 13, perforation 32 and fastener 8 are embodied as many groups, and described positioning hole 13 is a straight line (as shown in Figure 4) along single axial 14 arrangements between two squint faces 122,124 of interior edge face 12, and makes these diaphragm 3 both-ends lift pendulum along these axial 14 generation bendings separately.
Composition by above-mentioned member, can be for implementing the utility model according to this, particularly between engine 50 on-stream periods (as shown in Figure 2), its intermittently exhaust gas discharged can discharge to the external world via the baffler 9 that toxic emission end 52 connects, produce intermittent exhaust malleation and negative pressure at toxic emission end 52 simultaneously; This exhaust malleation can be full of the interior air chamber 62 (as shown in figure 10) in this housing 6, with the valve 33,34 of oppressing these diaphragm 3 both-ends separately towards being close on the squint face 122,124 of interior edge face 12 for gas port 51 directions, and hide described valve port 212,222, and then close described valve opening 21,22, leak to the external world with the waste gas that stops toxic emission end 52 via SAS Secondary Air Supply pipe 5.This negative exhaust pressure can produce pumping action (as shown in Figure 9) at the interior air chamber 62 of housing 6, and the valve 33 of these diaphragm 3 both-ends of priming, 34 produce elastic bending towards toxic emission end 52 directions separately lifts pendulum, cause described valve 33,34 open described valve port 212 respectively, 222, and then open described valve opening 21,22, allow the gas channel 4 of the self-supporting gas port 51 of ambient air via SAS Secondary Air Supply pipe 5, outer air chamber 61, port 211,221, valve opening 21,22, valve port 212,222 reach interior air chamber 62 imports toxic emission ends 52, and then increase oxygen content in 50 discharging waste gas of engine, promote in this baffler 9 usefulness of harmful matter in Catalytic Converter purifying exhaust airs according to this.During this time, these diaphragm 3 both- end valves 33,34 lift the swing degree, can control the open amount of described valve opening 21,22.
According to above-mentioned, this diaphragm 3 can utilize the heat resistant type plastics to make, to promote the heat resistance and the durable working life of diaphragm 3, and saving cost of production, and promote the valve 33 of diaphragm 3,34 accept the negative pressure priming and the sensitivity of lifting pendulum, the valve 33 of these diaphragm 3 both-ends, 34 can pass through curved part 35 separately, 36 generation squint faces on one day 122, the thrust of 124 directions, force diaphragm 3 both- end valves 33,34 are adjacent to valve opening 21 separately, the squint face 122 of 22 peripheries, 124, to promote valve opening 21,22 and diaphragm 3 between tightness, and accept vacuum suction separately and produce bendings along single axial 14 and lift pendulum, can further promote the valve 33 of diaphragm 3,34 accept the negative pressure priming and the sensitivity of lifting pendulum; In addition, by the described valve opening 21,22 on single this plate 1 of diaphragm 3 control, can save diaphragm 3 equity pairing valve opening 21,22 required number of spare parts one by one, to reduce the complexity that it produces.
More than explanation is just illustrative for the utility model; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within the protection domain of the present utility model.
Claims (9)
1. an one-way membrane plate valve is characterized in that, includes:
One plate is interval on the gas channel, and this plate bilateral has an interior edge face and an exterior edge face respectively;
At least one projection is formed on this interior edge face, and this projection top formation one extends to the squint face of this interior edge face along single direction;
At least one valve opening is formed between this squint face and this exterior edge face, and is communicated with this gas channel; And
One flexible membrane, be fixed on this interior edge face, and this diaphragm extends to and hides this valve opening on this squint face, and make this diaphragm form an elastic bend part in this interior edge face and this squint face joining place, order about this diaphragm and push this valve opening, this diaphragm is also accepted the negative pressure priming of this gas channel one end and unidirectional elasticity is lifted pendulum, to open this valve opening.
2. according to the described one-way membrane plate valve of claim 1, it is characterized in that: the quantity of described projection is a plurality of, and described projection is adjacent and be symmetrically formed on this interior edge face, and the central position of this diaphragm is fixed on this interior edge face between the described projection, and makes this diaphragm both-end hide described valve opening respectively.
3. according to the described one-way membrane plate valve of claim 1, it is characterized in that: described gas channel is communicated in one and gives between a gas end and the negative pressure end, this valve opening forms one in the exterior edge face of this plate and is communicated with the port that this gives the gas end, and this valve opening is in the valve port of interior edge face formation one this negative pressure end of connection of this plate, and this diaphragm hides on this valve port.
4. according to the described one-way membrane plate valve of claim 3, it is characterized in that: described negative pressure end is a toxic emission end of an engine, should be a secondary air inlet end of this engine to the gas end.
5. according to the described one-way membrane plate valve of claim 1, it is characterized in that: form a positioning hole on the plate between the described projection, this diaphragm central position forms a perforation, and wears a fastener in this positioning hole and this perforation, to fasten this plate and this diaphragm.
6. according to the described one-way membrane plate valve of claim 5, it is characterized in that: described fastener is made by rubber.
7. according to the described one-way membrane plate valve of claim 5, it is characterized in that: described fastener is a rivet or an embolism.
8. according to the described one-way membrane plate valve of claim 1, it is characterized in that: described diaphragm is made of plastics.
9. according to the described one-way membrane plate valve of claim 1, it is characterized in that: described diaphragm is the strip of sheet profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205637653U CN201844073U (en) | 2010-10-13 | 2010-10-13 | One-way membrane valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205637653U CN201844073U (en) | 2010-10-13 | 2010-10-13 | One-way membrane valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201844073U true CN201844073U (en) | 2011-05-25 |
Family
ID=44038965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205637653U Expired - Fee Related CN201844073U (en) | 2010-10-13 | 2010-10-13 | One-way membrane valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201844073U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425474A (en) * | 2011-11-11 | 2012-04-25 | 天津鹏翎胶管股份有限公司 | Pipeline assembly of turbocharging automobile crankcase ventilation system |
| CN102444455A (en) * | 2010-10-13 | 2012-05-09 | 信通交通器材股份有限公司 | One-way air valve of secondary air channel of engine |
| CN103867761A (en) * | 2012-12-14 | 2014-06-18 | 上海新力动力设备研究所 | High-temperature high-pressure scouring-resistant hot fuel gas one-way valve |
| CN106809521A (en) * | 2017-03-03 | 2017-06-09 | 盐城工学院 | A kind of vacuum bag and vacuum containing system |
| CN108049930A (en) * | 2016-10-06 | 2018-05-18 | 博格华纳公司 | For the bivalve valve of variable cam timing system |
| CN108167081A (en) * | 2018-03-08 | 2018-06-15 | 浙江中马园林机器股份有限公司 | A kind of two-stroke gasoline engine one way stop peturn valve and two-stroke gasoline engine |
| CN110179236A (en) * | 2019-06-11 | 2019-08-30 | 胡佳林 | A kind of adsorbable formula writing case |
| CN110513173A (en) * | 2018-05-22 | 2019-11-29 | 佛吉亚排放控制技术美国有限公司 | Passive clack valve for vehicle exhaust systems |
| CN110930679A (en) * | 2019-12-31 | 2020-03-27 | 重庆美卓科技股份有限公司 | Gas detection Internet of things alarm control system and method |
-
2010
- 2010-10-13 CN CN2010205637653U patent/CN201844073U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444455A (en) * | 2010-10-13 | 2012-05-09 | 信通交通器材股份有限公司 | One-way air valve of secondary air channel of engine |
| CN102444455B (en) * | 2010-10-13 | 2013-10-16 | 信通交通器材股份有限公司 | One-way air valve of secondary air channel of engine |
| CN102425474A (en) * | 2011-11-11 | 2012-04-25 | 天津鹏翎胶管股份有限公司 | Pipeline assembly of turbocharging automobile crankcase ventilation system |
| CN103867761A (en) * | 2012-12-14 | 2014-06-18 | 上海新力动力设备研究所 | High-temperature high-pressure scouring-resistant hot fuel gas one-way valve |
| CN108049930B (en) * | 2016-10-06 | 2021-01-08 | 博格华纳公司 | Dual flap valve for variable cam timing system |
| CN108049930A (en) * | 2016-10-06 | 2018-05-18 | 博格华纳公司 | For the bivalve valve of variable cam timing system |
| CN106809521A (en) * | 2017-03-03 | 2017-06-09 | 盐城工学院 | A kind of vacuum bag and vacuum containing system |
| CN108167081A (en) * | 2018-03-08 | 2018-06-15 | 浙江中马园林机器股份有限公司 | A kind of two-stroke gasoline engine one way stop peturn valve and two-stroke gasoline engine |
| CN110513173A (en) * | 2018-05-22 | 2019-11-29 | 佛吉亚排放控制技术美国有限公司 | Passive clack valve for vehicle exhaust systems |
| US11149602B2 (en) | 2018-05-22 | 2021-10-19 | Faurecia Emissions Control Technologies, Usa, Llc | Passive flap valve for vehicle exhaust system |
| CN110179236A (en) * | 2019-06-11 | 2019-08-30 | 胡佳林 | A kind of adsorbable formula writing case |
| CN110930679A (en) * | 2019-12-31 | 2020-03-27 | 重庆美卓科技股份有限公司 | Gas detection Internet of things alarm control system and method |
| CN110930679B (en) * | 2019-12-31 | 2024-02-13 | 重庆美卓科技股份有限公司 | Gas detection Internet of things alarm control system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20191013 |