CN203627002U - CNG (compressed natural gas) integrated control valve provided with overcurrent protection structure - Google Patents
CNG (compressed natural gas) integrated control valve provided with overcurrent protection structure Download PDFInfo
- Publication number
- CN203627002U CN203627002U CN201320690767.2U CN201320690767U CN203627002U CN 203627002 U CN203627002 U CN 203627002U CN 201320690767 U CN201320690767 U CN 201320690767U CN 203627002 U CN203627002 U CN 203627002U
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- China
- Prior art keywords
- joint
- valve
- box body
- cavity volume
- aerating
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- Expired - Fee Related
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract description 6
- 239000003345 natural gas Substances 0.000 title abstract description 3
- 239000007789 gas Substances 0.000 claims abstract description 90
- 239000000428 dust Substances 0.000 claims description 18
- 239000000567 combustion gas Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005267 amalgamation Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model provides a CNG (compressed natural gas) integrated control valve which comprises a gas charging port, a first joint and a second joint, wherein a gas charging channel is formed between the gas charging port and the first joint, and a main gas channel is formed between the first joint and the second joint; gas charging valves used for switching on and off the gas charging channel, a pressure gauge used for detecting the pressure value in the main gas channel and a pressure sensor used for transmitting the pressure value to an instrument desk are further arranged; the gas charging port, the first joint, the second joint, the gas charging valves, the pressure gauge and the pressure sensor are all integrally arranged on a hard box, and the gas charging channel and the main gas channel are tube cavities formed in the box; and a one-way stop valve is arranged at the second joint. The CNG integrated control valve has the benefits as follows: parts of a CNG gas supply system are integrally arranged on one hard box, so that pipeline gas-leakage is prevented effectively, and the safety is improved greatly; and the gas charging channel and the main gas channel are reasonably arranged and convenient to process.
Description
Technical field
The utility model relates to gas combustion automobile technical field, is specifically related to a kind of CNG combustion gas integrated control valve with overcurrent protection structure.
Background technique
Existing CNG(compressed natural gas) gas control valve generally comprise add gas port, for connecting the first joint of air cylinder and the second joint for connecting engine, add between gas port and the first joint and there is the flow channel of adding, between the first joint and the second joint, there is main gas flow, be also provided with for opening and closing add the air entraining valve of flow channel, for detection of the pressure gauge of main gas flow internal pressure value with by the pressure transducer for force value being sent to instrument desk; Add that gas port, the first joint, the second joint, air entraining valve, pressure gauge and pressure transducer are all integrated to be arranged on a panel and to connect by pipeline.Because pipeline exposes, gas leakage point is many, and easily generation vibration of motor motion, is easy to occur pipeline leakage.
Summary of the invention
The problems referred to above that the utility model exists for prior art, provide a kind of CNG combustion gas integrated control valve with overcurrent protection structure.
Model utility object of the present utility model realizes by following scheme: the CNG combustion gas integrated control valve with overcurrent protection structure, comprise add gas port, for connecting the first joint of air cylinder and the second joint for connecting engine, add between gas port and the first joint and there is the flow channel of adding, between the first joint and the second joint, there is main gas flow, be also provided with for opening and closing add the air entraining valve of flow channel, for detection of the pressure gauge of main gas flow internal pressure value with by the pressure transducer for force value being sent to instrument desk; Describedly add all integrated being arranged on a hard box body of gas port, the first joint, the second joint, air entraining valve, pressure gauge and pressure transducer, adding flow channel and main gas flow is the inner tube chamber forming of box body; The unidirectional stop valve of shutoff outlet when the second joint is provided with inside and occurs abnormal pressure; Hard box body is provided with mounting hole.
For making full use of the confined space in vehicle frame, hard box body is rectangular-shaped, the first joint and the second joint are positioned on hard box body two parallel side walls and axial offset setting, air entraining valve passes the main gas flow with the first joint coaxial communication, adding gas port is positioned at the first joint, the second joint and all on vertical sidewall, adds gas port and be provided with dust plug.
Further, described air entraining valve comprises air guide joint, aerating valve rod and be sleeved on the rotary actuator on aerating valve rod, air guide joint location is inserted in hard box body and vertically through main gas flow, air guide joint has the cross through hole being communicated with main gas flow, air guide joint front end has longitudinal blind hole, blind hole bottom is communicated with cross through hole, rotatable airtight the closing movably of aerating valve rod is sleeved in air entraining valve pole socket, air entraining valve pole socket inserts from the hard box body another side relative with air guide joint tail end, aerating valve rod front end has the closure part of the longitudinal blind hole of shutoff air guide joint, between air entraining valve pole socket and hard inboard wall of cartridge, form transition chamber thereof, air guide joint front end stretches in transition chamber thereof, transition chamber thereof with add gas port and be communicated with.
Further, the described rotary actuator being sleeved on aerating valve rod is handwheel, handwheel setting sleeve is contained on aerating valve rod, handwheel top has cavity volume, the other end that aerating valve rod is relative with closure part stretches into handwheel cavity volume, and fix by nut and handwheel cavity volume, handwheel cavity volume opening arrange outer rim and cavity volume inwall elasticity fasten, for sealing the end cap of cavity volume opening.
Further, the unidirectional stop valve of the second joint comprises cut-off spool, stop valve core retainer plate and spring, the second inner nosepiece wall has for the airtight suit of stop valve core retainer plate and holding ends the cavity volume that the two-stage of spool end telescopic moving arranges in gradient, joint between two-stage cavity volume has the horn mouth that can contact with cut-off spool end sealing, cut-off spool one end axially movably movable set in stop valve core retainer plate, cut-off spool the other end pocketed springs, the spring the other end with hold the cavity volume inwall that ends the telescopic moving of spool end and offset.
Further, also be provided with reset valve, reset valve has air pressure balance cavity volume, air pressure balance cavity volume has with unidirectional stop valve and holds and end the first opening that the cavity volume of spool end telescopic moving is communicated with and the second opening being communicated with main gas flow, and reset valve also has the spool mechanism for being communicated with/cutting out the first opening and the second opening; Be communicated with the straight setting of tilting of tube chamber that the first opening and unidirectional stop valve hold the cavity volume that ends the telescopic moving of spool end, the tube chamber that is communicated with the second opening and the main gas flow straight setting of also tilting.
Further, described hard box body bottom has emptying tube chamber, and emptying tube chamber is communicated with main gas flow, is provided with emptying plug in emptying tube chamber, and emptying plug comprises the bott stick being threaded with emptying tube chamber and stretches out the external end cap of rigid packet.
As the preferred version that adds gas port dust prevention, the described gas port that adds runs through hard box body, back side screw thread inserts turnbuckle, turnbuckle is set with basin type packing ring and adds gas port inner wall sealing, positive nested insertion aerating valve seat, and aerating valve seat interpolation enters bolt-type dust plug, bolt-type dust plug main body has at least two ring annular grooves, circular groove cover has rubber washer, and bolt-type dust plug tail end is connected with mooring line, has for the fixing locating column of the mooring line the other end on hard box body.
As another preferred version that adds gas port dust prevention, the described gas port that adds runs through hard box body, back side screw thread inserts turnbuckle, turnbuckle is set with basin type packing ring and adds gas port inner wall sealing, positive nested insertion aerating valve seat, aerating valve seat end suit aerating valve port protective housing, aerating valve seat interpolation enters the seizing type dust plug with non-return mechanism, and aerating valve port protective housing tail end is connected with mooring line.
Further, hard box body is solid aluminum alloy material, withstand voltage 350kg～800kg; Add flow channel and main gas flow and be all the flat that equal diameter is extended, diameter range is 6～12mm.
The beneficial effects of the utility model are: each component integration of CNG air supply system is arranged on a hard box body, effectively prevents pipeline gas leakage, greatly improve Security; Add flow channel, main gas flow arranges rationally, be convenient to processing; Air entraining valve and to add port configurations reasonable, dismounting and operation are all efficient and convenient; The second joint of leading to motor has unidirectional cutoff mechanism, damages motor while preventing gas leakage.
Brief description of the drawings
Fig. 1 is the main apparent direction structural representation of the utility model embodiment one.
Fig. 2 is the left apparent direction structural representation of the utility model embodiment one.
Fig. 3 be in Fig. 1 A-A to sectional view.
Fig. 4 be in Fig. 1 B-B to sectional view.
Fig. 5 is the utility model embodiment one second joint unidirectional stop valve structural representation.
Fig. 6 is the main apparent direction structural representation of the utility model embodiment two.
Fig. 7 is the left apparent direction structural representation of the utility model embodiment two.
Fig. 8 be in Fig. 5 A-A to sectional view.
Fig. 9 be in Fig. 5 B-B to sectional view.
Embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is described in further detail:
embodiment one
Shown in accompanying drawing 1 to Fig. 5, CNG combustion gas integrated control valve of the present utility model, comprise add gas port 1, for connecting the first joint 2 of air cylinder and the second joint 3 for connecting engine, add between gas port 1 and the first joint 2 and there is the flow channel of adding, between the first joint 2 and the second joint 3, there is main gas flow 4, be also provided with for opening and closing add the air entraining valve 5 of flow channel, for detection of the pressure gauge 7 of main gas flow internal pressure value with by the pressure transducer 8 for force value being sent to instrument desk; Add gas port 1, the first joint 2, the second joint 3, air entraining valve 5, pressure gauge 7 and all integrated being arranged on a hard box body 9 of pressure transducer 8, add flow channel and main gas flow 4 for the inner tube chamber forming of box body; The unidirectional stop valve 10 of shutoff outlet when the second joint 3 places are provided with inside and occur abnormal pressure.Hard box body is provided with mounting hole 20, and mounting hole 20 is positioned at 4 corner locations.
For improving space availability ratio and reducing die cost, hard box body 9 is rectangular-shaped, the first joint 2 and the second joint 3 are positioned on 9 liang of parallel side walls of hard box body and axial offset setting, air entraining valve 5 passes the main gas flow 4 with the first joint coaxial communication, adding gas port 1 is positioned at the first joint 2, the second joint 3 and all on vertical sidewall, adds gas port 1 and be provided with dust plug.
For guaranteeing further sealing and operation ease, air entraining valve 5 comprises air guide joint 5A, aerating valve rod 5B and be sleeved on the rotary actuator 5C on aerating valve rod, air guide joint 5A inserts location in hard box body and vertically through main gas flow 4, air guide joint 5A has the cross through hole being communicated with main gas flow 4, air guide joint 5A front end has longitudinal blind hole, blind hole bottom is communicated with cross through hole, rotatable airtight the closing movably of aerating valve rod 5B is sleeved in air entraining valve pole socket 5D, air entraining valve pole socket 5D inserts from hard box body 9 another side relative with air guide joint 5A tail end, aerating valve rod 5B front end has the closure part of the longitudinal blind hole of shutoff air guide joint, between air entraining valve pole socket 5D and hard box body 9 inwalls, form transition chamber thereof 5E, air guide joint 5A front end stretches in transition chamber thereof 5E, transition chamber thereof 5E with add gas port 1 and be communicated with.
The rotary actuator 5C being sleeved on aerating valve rod 5B is handwheel, handwheel setting sleeve is contained on aerating valve rod 5B, handwheel top has cavity volume, the other end that aerating valve rod is relative with closure part stretches into handwheel cavity volume, and fix by nut and handwheel cavity volume, handwheel cavity volume opening arrange outer rim and cavity volume inwall elasticity fasten, for sealing the end cap 5F of cavity volume opening.
With reference to Fig. 5, the unidirectional stop valve 10 of the second joint 3 comprises cut-off spool 10A, stop valve core retainer plate 10B and spring 10C, the second joint 3 inwalls have for the stop valve airtight suit of core retainer plate 10B and hold the cavity volume that the two-stage of cut-off spool 10A end telescopic moving arranges in gradient, joint between two-stage cavity volume has the horn mouth that can contact with cut-off spool 10A end sealing, cut-off spool 10A one end axially movably movable set in stop valve core retainer plate 10B, cut-off spool 10A the other end pocketed springs 10C, the spring 10C the other end with hold the cavity volume inwall that ends the telescopic moving of spool end and offset.
Eliminate rear unidirectional stop valve Rapid reset for ensureing the second joint abnormal pressure, in the present embodiment, be also provided with reset valve 11, reset valve 11 has air pressure balance cavity volume 11A, air pressure balance cavity volume 11A has with unidirectional stop valve 10 and holds and end the first opening that the cavity volume of spool end telescopic moving is communicated with and the second opening being communicated with main gas flow, reset valve 11 also has the spool mechanism for being communicated with/cutting out the first opening and the second opening, for improving versatility and reducing costs, the valve core structure that resets in the present embodiment is identical with air entraining valve structure; Be communicated with the straight setting of tilting of tube chamber that the first opening and unidirectional stop valve 10 hold the cavity volume that ends the telescopic moving of spool end, the tube chamber that is communicated with the second opening and the main gas flow 4 straight setting of also tilting, process tube chamber from unidirectional stop valve 10 and main gas flow medium dip, easy to process, and hard box body is without passing through two box body unit amalgamations, overall mechanical strength is high, and tightness is good.
The gas port 1 that adds of the present embodiment runs through hard box body 9, back side screw thread inserts turnbuckle 1A, turnbuckle 1A is set with basin type packing ring 1B and adds gas port inner wall sealing, positive nested insertion aerating valve seat 1C, in aerating valve seat 1C, insert bolt-type dust plug 1D, bolt-type dust plug 1D main body has at least two ring annular grooves, and circular groove cover has rubber washer 14, bolt-type dust plug 1D tail end is connected with mooring line 15, has for the fixing locating column 16 of mooring line 15 the other ends on hard box body 9.
For balancing safety and processing cost, hard box body 9 is solid aluminum alloy material, withstand voltage 350kg～800kg; Add flow channel and main gas flow 4 and be all the flat that equal diameter is extended, diameter range is 6～12mm.
embodiment two
With reference to Fig. 6 to Fig. 9, the present embodiment and embodiment's one difference is: as another preferred version that adds gas port dust prevention, add gas port 1 and run through hard box body, back side screw thread inserts turnbuckle 1A, turnbuckle 1A is set with basin type packing ring 1B and adds gas port inner wall sealing, positive nested insertion aerating valve seat, aerating valve seat 1E end suit aerating valve port protective housing 17, aerating valve seat interpolation enters the seizing type dust plug 1F with non-return mechanism, and aerating valve port protective housing tail end is connected with mooring line 15.Embodiment one mooring line is beads shape, and the mooring line 15 of the present embodiment is soft band shape.
In the time of inflating gas cylinder, open air entraining valve 5, after inflation finishes, close air entraining valve 5.In the time that leaking in a large number appears in outlet end fuel gas pipeline, the unidirectional stop valve of the second joint is automatically closed and is carried out overcurrent protection, and fault is guaranteed, in the situation of outlet end fuel gas pipeline safety, can open reset valve 11 after getting rid of.
Although the utility model illustrates and describes by reference to preferred embodiment, but those of ordinary skill in the art should understand, can be not limited to the description of the present embodiment, in the scope of claims, can make the various variations in form and details.
Claims (10)
1. there is the CNG combustion gas integrated control valve of overcurrent protection structure, it is characterized in that being to comprise add gas port, for connecting the first joint of air cylinder and the second joint for connecting engine, add between gas port and the first joint and there is the flow channel of adding, between the first joint and the second joint, there is main gas flow, be also provided with for opening and closing add the air entraining valve of flow channel, for detection of the pressure gauge of main gas flow internal pressure value with by the pressure transducer for force value being sent to instrument desk; Describedly add all integrated being arranged on a hard box body of gas port, the first joint, the second joint, air entraining valve, pressure gauge and pressure transducer, adding flow channel and main gas flow is the inner tube chamber forming of box body; The unidirectional stop valve of shutoff outlet when the second joint is provided with inside and occurs abnormal pressure; Hard box body is provided with mounting hole.
2. the CNG combustion gas integrated control valve with overcurrent protection structure according to claim 1; it is characterized in that: described hard box body is rectangular-shaped; the first joint and the second joint are positioned on hard box body two parallel side walls and axial offset setting; air entraining valve passes the main gas flow with the first joint coaxial communication; adding gas port is positioned at the first joint, the second joint and all on vertical sidewall, adds gas port and be provided with dust plug.
3. the CNG combustion gas integrated control valve with overcurrent protection structure according to claim 2, it is characterized in that: described air entraining valve comprises air guide joint, aerating valve rod and be sleeved on the rotary actuator on aerating valve rod, air guide joint location is inserted in hard box body and vertically through main gas flow, air guide joint has the cross through hole being communicated with main gas flow, air guide joint front end has longitudinal blind hole, blind hole bottom is communicated with cross through hole, rotatable airtight the closing movably of aerating valve rod is sleeved in air entraining valve pole socket, air entraining valve pole socket inserts from the hard box body another side relative with air guide joint tail end, aerating valve rod front end has the closure part of the longitudinal blind hole of shutoff air guide joint, between air entraining valve pole socket and hard inboard wall of cartridge, form transition chamber thereof, air guide joint front end stretches in transition chamber thereof, transition chamber thereof with add gas port and be communicated with.
4. the CNG combustion gas integrated control valve with overcurrent protection structure according to claim 3; it is characterized in that: described in the rotary actuator that is sleeved on aerating valve rod be handwheel; handwheel setting sleeve is contained on aerating valve rod; handwheel top has cavity volume; the other end that aerating valve rod is relative with closure part stretches into handwheel cavity volume; and fix by nut and handwheel cavity volume, handwheel cavity volume opening arrange outer rim and cavity volume inwall elasticity fasten, for sealing the end cap of cavity volume opening.
5. the CNG combustion gas integrated control valve with overcurrent protection structure according to claim 2, it is characterized in that: the unidirectional stop valve of the second joint comprises cut-off spool, stop valve core retainer plate and spring, the second inner nosepiece wall has for the airtight suit of stop valve core retainer plate and holding ends the cavity volume that the two-stage of spool end telescopic moving arranges in gradient, joint between two-stage cavity volume has the horn mouth that can contact with cut-off spool end sealing, cut-off spool one end axially movably movable set in stop valve core retainer plate, cut-off spool the other end pocketed springs, the spring the other end with hold the cavity volume inwall that ends the telescopic moving of spool end and offset.
6. the CNG combustion gas integrated control valve with overcurrent protection structure according to claim 5, it is characterized in that: be also provided with reset valve, reset valve has air pressure balance cavity volume, air pressure balance cavity volume has with unidirectional stop valve and holds and end the first opening that the cavity volume of spool end telescopic moving is communicated with and the second opening being communicated with main gas flow, and reset valve also has the spool mechanism for being communicated with/cutting out the first opening and the second opening; Be communicated with the straight setting of tilting of tube chamber that the first opening and unidirectional stop valve hold the cavity volume that ends the telescopic moving of spool end, the tube chamber that is communicated with the second opening and the main gas flow straight setting of also tilting.
7. according to the CNG combustion gas integrated control valve with overcurrent protection structure described in claim 1 to 6 any one; it is characterized in that: described hard box body bottom has emptying tube chamber; emptying tube chamber is communicated with main gas flow; in emptying tube chamber, be provided with emptying plug, emptying plug comprises the bott stick being threaded with emptying tube chamber and stretches out the external end cap of rigid packet.
8. according to the CNG combustion gas integrated control valve with overcurrent protection structure described in claim 2 to 6 any one; it is characterized in that: described in add gas port and run through hard box body; back side screw thread inserts turnbuckle; turnbuckle is set with basin type packing ring and adds gas port inner wall sealing; positive nested insertion aerating valve seat; aerating valve seat interpolation enters bolt-type dust plug; bolt-type dust plug main body has at least two ring annular grooves; circular groove cover has rubber washer; bolt-type dust plug tail end is connected with mooring line, has for the fixing locating column of the mooring line the other end on hard box body.
9. according to the CNG combustion gas integrated control valve with overcurrent protection structure described in claim 2 to 6 any one; it is characterized in that: described in add gas port and run through hard box body; back side screw thread inserts turnbuckle; turnbuckle is set with basin type packing ring and adds gas port inner wall sealing; positive nested insertion aerating valve seat; aerating valve seat end suit aerating valve port protective housing, aerating valve seat interpolation enters the seizing type dust plug with non-return mechanism, and aerating valve port protective housing tail end is connected with mooring line.
10. according to the CNG combustion gas integrated control valve with overcurrent protection structure described in claim 1 to 6 any one, it is characterized in that: hard box body is solid aluminum alloy material, withstand voltage 350kg～800kg; Add flow channel and main gas flow and be all the flat that equal diameter is extended, diameter range is 6～12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320690767.2U CN203627002U (en) | 2013-11-04 | 2013-11-04 | CNG (compressed natural gas) integrated control valve provided with overcurrent protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320690767.2U CN203627002U (en) | 2013-11-04 | 2013-11-04 | CNG (compressed natural gas) integrated control valve provided with overcurrent protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627002U true CN203627002U (en) | 2014-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320690767.2U Expired - Fee Related CN203627002U (en) | 2013-11-04 | 2013-11-04 | CNG (compressed natural gas) integrated control valve provided with overcurrent protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015656A (en) * | 2016-06-29 | 2016-10-12 | 中材高新成都能源技术有限公司 | Overcurrent protection integrated valve |
-
2013
- 2013-11-04 CN CN201320690767.2U patent/CN203627002U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015656A (en) * | 2016-06-29 | 2016-10-12 | 中材高新成都能源技术有限公司 | Overcurrent protection integrated valve |
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| 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 |
Granted publication date: 20140604 Termination date: 20181104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |