CN109915729A - A kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume - Google Patents
A kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume Download PDFInfo
- Publication number
- CN109915729A CN109915729A CN201910328214.4A CN201910328214A CN109915729A CN 109915729 A CN109915729 A CN 109915729A CN 201910328214 A CN201910328214 A CN 201910328214A CN 109915729 A CN109915729 A CN 109915729A
- Authority
- CN
- China
- Prior art keywords
- guard circle
- side wall
- straight section
- section guard
- gas cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 16
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 24
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 8
- 239000003345 natural gas Substances 0.000 abstract description 4
- 230000006378 damage Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005417 food ingredient Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000013324 preserved food Nutrition 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
It is disclosed by the invention to belong to natural gas cylinder technical field, specially a kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume, including straight section guard circle, large cover and minor flaps, front side is fixedly installed with cylinder pressure gauge at the top of the right side wall of the straight section guard circle, top offers low temperature gas returning port in the middle part of the right side wall of the straight section guard circle, front side offers low temperature aerating mouth in the middle part of the right side wall of the straight section guard circle, rear side is fixedly installed with buffer tank pressure table in the middle part of the right side wall of the straight section guard circle, lower section offers charging line mouth in the middle part of the right side wall of the straight section guard circle, the right side wall bottom of the straight section guard circle offers big line portals, main safety valve exhaust pipe crossing is offered at the top of the left side wall of the straight section guard circle, the invention meets valve, instrument and pipe The requirement of road assembly space, while realizing the resultant effect comprehensively protected valve pipeline.
Description
Technical field
The present invention relates to natural gas cylinder technical fields, specially a kind of to be suitable for the Vehicular liquefied natural gas cylinder of small volume
Guard circle modular construction.
Background technique
Vehicular liquefied natural gas cylinder: liner medium for storing is liquefied natural gas, and interlayer is high vacuum multiple layer heat insulation form,
Shell is used to support liner and stroke confined space, is equivalent to fuel tanks of automobile;Protect coil assembly: for protecting gas cylinder bottle valve
Door, instrument, pipeline, prevent it to be accidentally impacted and damage.
Automobile liquefied natural gas bottle is to contain, storage, supply fuel (liquid as one kind to substitute automotive oil tank
Change natural gas), and the low-temperature heat-insulation pressure container filled can be repeated several times.All exterior lines of gas cylinder, valve member, instrument
It is all disposed within one end of gas bottle head, to prevent the injury of direct mechanical collision or road gallet to instrument, usually in gas
Bottle valve end welding protection coil assembly is protected.The guard circle modular construction in industry has 2 kinds at present, a kind of gas bottle head
In valve, pipeline are wrapped in by an annular circle and 3-4 support plate, the peace such as the filling opening and gas returning port of gas cylinder, pressure gauge
On liquid feeding panel, liquid feeding panel is fixed on the supporting plate, which is suitable for the gas cylinder of all diameters;Another gas cylinder
The pressure gauge of filling opening, gas returning port and gas cylinder is fixed on guard circle, and valve, the pipeline of gas bottle head are all wrapped in by guard circle
Interior, outside is covered with a cover board, is provided with hand hole in the corresponding position of valve on cover board, is facilitated manual switch valve.The knot
Structure is only applicable to diameter in the gas cylinder of 650mm or more.
Since small volume gas cylinder diameter is small in the prior art, the assembly space of Bottleneck valve, instrument and pipeline is limited, and
Since guard circle radius of curvature is small, pressure gauge fixing bolt tightens rear pressure gauge dial plate and easily deforms, so as to cause pressure gauge
The raw leakage of interior shockproof fry dried food ingredients, guard circle modular construction are not used on small volume gas cylinder, although guard circle meets assembly space
Requirement, can only but prevent valve, pipeline, instrument from by direct mechanical collision, road surface in vehicle travel process cannot not prevented
The injury of rubble, while and valve pipeline on be easy to cause dust dirt to accumulate, therefore need to research and develop and a kind of be suitable for small volume
The guard circle modular construction of Vehicular liquefied natural gas cylinder.
Summary of the invention
The purpose of the present invention is to provide a kind of protection coil assembly knots suitable for the Vehicular liquefied natural gas cylinder of small volume
Structure had not only been able to satisfy the requirement of valve, instrument and pipeline assembly space, but also can comprehensively protect valve pipeline.
To achieve the above object, the invention provides the following technical scheme: a kind of be suitable for the Vehicular liquefied natural gas of small volume
The guard circle modular construction of gas cylinder, including straight section guard circle, large cover and minor flaps, the right side wall of the straight section guard circle
Cylinder pressure gauge is fixedly installed on front side of top, top offers low temperature return-air in the middle part of the right side wall of the straight section guard circle
Mouthful, front side offers low temperature aerating mouth, the right side wall of the straight section guard circle in the middle part of the right side wall of the straight section guard circle
Buffer tank pressure table is fixedly installed on rear side of middle part, lower section offers charging line in the middle part of the right side wall of the straight section guard circle
Mouthful, the right side wall bottom of the straight section guard circle offers big line portals, opens at the top of the left side wall of the straight section guard circle
Equipped with main safety valve exhaust pipe crossing, muffler crossing, the straight flange are offered in the middle part of the left side wall of the straight section guard circle
The large cover is fixedly mounted in the front side wall of section guard circle, and pressurization return-air cut-off valve opening, institute are offered on the left of the large cover
The right side up and down direction for stating large cover offers out liquid cut-off valve opening respectively and increases press juice cut-off valve opening, and the pressurization return-air is cut
Only the minor flaps are fixedly mounted in valve opening, the cut-off valve opening of liquid out and the front side wall for increasing press juice cut-off valve opening, described
The side of minor flaps offers pin hole, and the other side of the minor flaps is fixedly installed with bayonet.
Preferably, the large cover matches clamping with the front side wall of the straight section guard circle.
Preferably, multiple limited blocks are uniformly welded on front side of the inner wall of the straight section guard circle, are consolidated on the limited block
Dingan County is equipped with shank of bolt, and the surrounding of the large cover opens up multiple mounting holes matched with multiple shanks of bolt, by more
Large cover is mounted on the front side wall of straight section guard circle by a shank of bolt, multiple mounting holes and wing bolt.
Preferably, the pin hole and the bayonet are located on opposite stile.
Preferably, minor flaps are mounted on the front side wall of large cover by pivot pin and pin hole by the minor flaps.
Compared with prior art, the beneficial effects of the present invention are: the invention provides one kind to be suitable for small volume vehicle liquid
The guard circle modular construction for changing natural gas cylinder, since small volume gas cylinder guard circle radius of curvature is small, therefore increases on guard circle
A straight edge section deforms after preventing it from assembling for assembling filling opening, gas returning port and pressure gauge and causes to reveal, while straight
Coil structures are protected in the rational design of side section guard circle, facilitate each pipeline of gas cylinder rationally to arrange, in the front side wall of straight section guard circle
It is provided with large cover and minor flaps, can effectively prevent dust dirt from entering the inside of straight section guard circle, is realized to valved tube
The effective protection on road acts on.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the right view of structure of the invention;
Fig. 3 is the left view of structure of the invention;
Fig. 4 is the main view of structure of the invention minor flaps.
In figure: 100 straight section guard circles, 110 cylinder pressure gauges, 120 low temperature gas returning ports, 130 low temperature aerating mouths, 140 are delayed
Rush pressure tank table, 150 charging line mouths, 160 big line portals, 170 main safety valve exhaust pipe crossings, 180 muffler crossings, 200
Large cover, 210 pressurization return-airs end valve openings, 220, and liquid cut-off valve opening, 230 increasing press juices end valve opening, 300 minor flaps, 310 out
Pin hole, 320 bayonets, 400 threaded rods, 500 wing bolts.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution: a kind of protection coil assembly suitable for the Vehicular liquefied natural gas cylinder of small volume
Structure, for meeting the requirement of valve, instrument and pipeline assembly space, realization is comprehensively protected valve pipeline, please be joined
Read Fig. 1, including straight section guard circle 100, large cover 200 and minor flaps 300;
Referring to Fig. 1, straight section guard circle 100 has cylinder pressure gauge 110, low temperature gas returning port 120, low temperature aerating
Mouth 130, buffer tank pressure table 140, charging line mouth 150, big line portals 160, main safety valve exhaust pipe crossing 170 and muffler
Crossing 180, specifically, being equipped with cylinder pressure gauge 110 by bolt on front side of at the top of the right side wall of straight section guard circle 100, directly
Top offers low temperature gas returning port 120, the right side wall middle part of straight section guard circle 100 in the middle part of the right side wall of side section guard circle 100
Front side offers low temperature aerating mouth 130, and rear side is equipped with surge tank pressure by bolt in the middle part of the right side wall of straight section guard circle 100
The right side wall middle part lower section of power table 140, straight section guard circle 100 offers charging line mouth 150, straight section guard circle 100
Right side wall bottom offers big line portals 160, offers main safety valve gas exhaust piping at the top of the left side wall of straight section guard circle 100
The left side wall middle part of mouth 170, straight section guard circle 100 offers muffler crossing 180, and big line portals 160 are pressurized for grafting
Outlet tube road and charging line, straight section guard circle 100 is for being fixedly mounted large cover 200, and straight section guard circle 100 is by stainless
Steel is made;
Referring to Fig. 1, large cover 200 has pressurization return-air cut-off valve opening 210, goes out liquid cut-off valve opening 220 and pressurization
Liquid ends valve opening 230 out, and large cover 200 is fixedly mounted on the front side wall of straight section guard circle 100, specifically, large cover 200
Left side offers pressurization return-air cut-off valve opening 210, and the right side up and down direction of large cover 200 offers out liquid cut-off valve opening respectively
220 end valve opening 230 with press juice is increased, and 3 limited blocks, three limits are uniformly welded on front side of the inner wall of straight section guard circle 100
It is welded with shank of bolt on the block of position, the surrounding of large cover 200 opens up three mounting holes matched with three shanks of bolt, passes through three
Large cover 200 is mounted on straight section guard circle 100 by shank of bolt, three mounting holes and wing bolt 500, and large cover 200 is used
In minor flaps 300 are fixedly mounted, large cover 200 is made of stainless steel;
Referring to Fig. 1 and Fig. 4, minor flaps 300 have pin hole 310 and bayonet 320, and minor flaps 300 are mounted on greatly
The front side wall of cover board 200, specifically, the side of minor flaps 300 offers pin hole 310, the fixed peace in the other side of minor flaps 300
Equipped with bayonet 320, on opposite stile, pressurization return-air cut-off valve opening 210 goes out liquid cut-off valve opening for pin hole 310 and bayonet 320
220 and increase press juice cut-off valve opening 230 side offer same aperture corresponding with pin hole 310 the first thread groove (figure
In it is unmarked), minor flaps 300 are mounted on large cover 200 by pin hole 310, the first thread groove and pin, with the first spiral shell
Groove is opposed to be welded with threaded rod 400 on one side, and the top of threaded rod 400 is bolted with wing bolt 500, wing bolt 500
It is connected on threaded rod 400 for realizing by bayonet 320, minor flaps 300 are made of stainless steel;
In the specific use process, when large cover 200 is mounted on directly by the needs present invention first during use
The front side wall of side section guard circle 100, then the pin hole 310 in minor flaps 300 is passed through with the first thread groove on large cover 200
Pin is fixed, and realizes that minor flaps 300 end valve opening 210, go out liquid cut-off valve opening 220 and increase press juice cut-off in pressurization return-air
Rotation on valve opening 230 is clamped using bayonet 320 and 400 phase of threaded rod, then realizes fixed function using wing bolt 500,
Straight section on straight section guard circle 100 is for installing and protecting pressure gauge.
In order to realize the identical clamping of large cover 200 Yu straight section guard circle 100, specifically, the radius of large cover 200 omits
Less than the front side wall radius of straight section guard circle 100, realizes and be clamped large cover 200 and 100 phase of straight section guard circle, facilitate dress
Match and dismantles.
Above-mentioned limited block, shank of bolt and mounting hole is not limited in the particular number of the present embodiment record, this technology neck
Domain personnel can according to need under the premise of the present apparatus can complete its firm installation function and increase or decrease its quantity.
Although hereinbefore invention has been described by reference to embodiment, the scope of the present invention is not being departed from
In the case where, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as being not present
Structural conflict, the various features in presently disclosed embodiment can be combined with each other use by any way,
The description for not carrying out exhaustive to the case where these combinations in this specification is examined merely for the sake of omission length with what is economized on resources
Consider.Therefore, the invention is not limited to specific embodiments disclosed herein, but the institute including falling within the scope of the appended claims
There is technical solution.
Claims (5)
1. a kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume, it is characterised in that: including straight flange
Section guard circle (100), large cover (200) and minor flaps (300), the right side wall top front side of the straight section guard circle (100)
It is fixedly installed with cylinder pressure gauge (110), top offers low temperature return-air in the middle part of the right side wall of the straight section guard circle (100)
The right side wall middle part front side of mouth (120), the straight section guard circle (100) offers low temperature aerating mouth (130), the straight section
Rear side is fixedly installed with buffer tank pressure table (140) in the middle part of the right side wall of guard circle (100), the straight section guard circle (100)
Right side wall in the middle part of lower section offer charging line mouth (150), the right side wall bottom of the straight section guard circle (100) offers
The left side wall top of big line portals (160), the straight section guard circle (100) offers main safety valve exhaust pipe crossing (170),
It is offered muffler crossing (180) in the middle part of the left side wall of the straight section guard circle (100), the straight section guard circle (100)
Front side wall the large cover (200) is fixedly mounted, pressurization return-air cut-off valve opening is offered on the left of the large cover (200)
(210), the right side up and down direction of the large cover (200) offers out liquid cut-off valve opening (220) respectively and increases press juice cut-off
Valve opening (230), pressurization return-air cut-off valve opening (210), liquid cut-off valve opening (220) and the increasing press juice shut-off valve out
The minor flaps (300) are fixedly mounted in the front side wall in hole (230), and the side of the minor flaps (300) offers pin hole
(310), the other side of the minor flaps (300) is fixedly installed with bayonet (320).
2. a kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume according to claim 1,
The clamping it is characterized by: large cover (200) matches with the front side wall of the straight section guard circle (100).
3. a kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume according to claim 1,
It is characterized by: multiple limited blocks are uniformly welded on front side of the inner wall of the straight section guard circle (100), it is solid on the limited block
Dingan County is equipped with shank of bolt, and the surrounding of the large cover (200) opens up multiple mounting holes matched with multiple shanks of bolt, leads to
It crosses multiple shanks of bolt, multiple mounting holes and wing bolt (500) and large cover (200) is mounted on straight section guard circle
(100) front side wall.
4. a kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume according to claim 1,
It is characterized by: the pin hole (310) and the bayonet (320) are located on opposite stile.
5. a kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume according to claim 1,
It is characterized by: minor flaps (300) are mounted on large cover (200) by pivot pin and pin hole (310) by the minor flaps (300)
Front side wall.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910328214.4A CN109915729A (en) | 2019-04-23 | 2019-04-23 | A kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910328214.4A CN109915729A (en) | 2019-04-23 | 2019-04-23 | A kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109915729A true CN109915729A (en) | 2019-06-21 |
Family
ID=66978216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910328214.4A Pending CN109915729A (en) | 2019-04-23 | 2019-04-23 | A kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109915729A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111412386A (en) * | 2020-05-08 | 2020-07-14 | 长春致远新能源装备股份有限公司 | L NG air supply system gas cylinder is with new material guard circle structure and with gas cylinder connection structure |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN204432374U (en) * | 2015-01-28 | 2015-07-01 | 安徽安凯汽车股份有限公司 | The automobile-used LNG gas support of a kind of integrated form |
CN204488491U (en) * | 2015-03-09 | 2015-07-22 | 中国重汽集团济南动力有限公司 | Gas cylinder protective device on a kind of gas tractor |
CN204782410U (en) * | 2015-06-15 | 2015-11-18 | 中国重型机械研究院股份公司 | Can open fast with closed apron device |
CN105650464A (en) * | 2014-11-10 | 2016-06-08 | 张家港中集圣达因低温装备有限公司 | Liquefied natural gas cylinder for vehicles and valve protection device thereof |
KR20180074262A (en) * | 2016-12-23 | 2018-07-03 | 주식회사 한국제일안전 | Protective cover of high pressure gas tank |
CN209744048U (en) * | 2019-04-23 | 2019-12-06 | 长春致远新能源设备有限责任公司 | Guard ring subassembly structure suitable for small-capacity automobile-used liquefied natural gas cylinder |
-
2019
- 2019-04-23 CN CN201910328214.4A patent/CN109915729A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105650464A (en) * | 2014-11-10 | 2016-06-08 | 张家港中集圣达因低温装备有限公司 | Liquefied natural gas cylinder for vehicles and valve protection device thereof |
CN204432374U (en) * | 2015-01-28 | 2015-07-01 | 安徽安凯汽车股份有限公司 | The automobile-used LNG gas support of a kind of integrated form |
CN204488491U (en) * | 2015-03-09 | 2015-07-22 | 中国重汽集团济南动力有限公司 | Gas cylinder protective device on a kind of gas tractor |
CN204782410U (en) * | 2015-06-15 | 2015-11-18 | 中国重型机械研究院股份公司 | Can open fast with closed apron device |
KR20180074262A (en) * | 2016-12-23 | 2018-07-03 | 주식회사 한국제일안전 | Protective cover of high pressure gas tank |
CN209744048U (en) * | 2019-04-23 | 2019-12-06 | 长春致远新能源设备有限责任公司 | Guard ring subassembly structure suitable for small-capacity automobile-used liquefied natural gas cylinder |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111412386A (en) * | 2020-05-08 | 2020-07-14 | 长春致远新能源装备股份有限公司 | L NG air supply system gas cylinder is with new material guard circle structure and with gas cylinder connection structure |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106927162A (en) | The unrestrained device of one kind resistance and its tank body | |
CN102174983B (en) | Vertical-type low-temperature heat-insulation gas cylinder | |
MXPA95005276A (en) | Compressed gas mobile storage module and lightweight composite cylinders. | |
US20100230422A1 (en) | Tank for High Pressure Fluids | |
CN101915356A (en) | LNG storage tank for diesel-LNG hybrid power ship | |
CN103672392A (en) | Barge for filling liquefied natural gas | |
CN109915729A (en) | A kind of guard circle modular construction suitable for the Vehicular liquefied natural gas cylinder of small volume | |
CN109780416A (en) | High-vacuum insulation Double-layer Spherical | |
DE102014209921A1 (en) | Pressure vessel for a vehicle | |
CN201779441U (en) | LNG (Liquefied Natural Gas) storage tank for diesel oil-LNG hybrid power ship | |
KR20140111667A (en) | Inspectable containers for the transport by sea of compressed natural gas, fitted with a manhole for internal access | |
CN210511025U (en) | Large-volume steel inner container circumferential winding gas cylinder | |
CN108167550B (en) | A kind of double-wall pipe and its installation method for ship fuel gas pipeline | |
CN206679644U (en) | One kind hinders unrestrained device and its tank body | |
CN111516902B (en) | Equivalent aircraft fuel tank for water hammer effect test | |
CN202834732U (en) | Liquefied natural gas filling wharf boat | |
CN208699639U (en) | Low temperature liquid transport vehicle tank body inner pressurd vessel | |
CN105065904B (en) | A kind of automobile liquefied natural gas bottle | |
CN204943013U (en) | Liquefied natural gas filling landing stage LNG storage tank | |
CN209744048U (en) | Guard ring subassembly structure suitable for small-capacity automobile-used liquefied natural gas cylinder | |
CN107627278B (en) | In-plant storage and transportation box for small uranium hexafluoride container | |
CN105179925A (en) | LNG storage tank for liquefied natural gas filling pontoon | |
WO2018077240A1 (en) | Sealing device and grouping unit of natural gas storage system of cng transport ship | |
DE102014209916A1 (en) | High pressure vessel | |
CN208593293U (en) | Anti-theft type fuel tank sealing mechanism |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB02 | Change of applicant information |
Address after: 130103 Chaoyang District Yumin Road, Changchun, Changchun, Jilin Applicant after: Changchun Zhiyuan new energy equipment Co.,Ltd. Address before: 130103 Chaoyang District Yumin Road, Changchun, Changchun, Jilin Applicant before: CHANGCHUN ZHIYUAN NEW ENERGY EQUIPMENT Co.,Ltd. |
|
CB02 | Change of applicant information | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190621 |
|
RJ01 | Rejection of invention patent application after publication |