CN109340411A - Hydrogen-feeding system integral type regulator - Google Patents
Hydrogen-feeding system integral type regulator Download PDFInfo
- Publication number
- CN109340411A CN109340411A CN201811195015.2A CN201811195015A CN109340411A CN 109340411 A CN109340411 A CN 109340411A CN 201811195015 A CN201811195015 A CN 201811195015A CN 109340411 A CN109340411 A CN 109340411A
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- pressure
- valve
- feeding system
- integral type
- 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
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000001257 hydrogen Substances 0.000 claims abstract description 28
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 28
- 238000004140 cleaning Methods 0.000 claims abstract description 3
- 210000002445 nipple Anatomy 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- SEPPVOUBHWNCAW-FNORWQNLSA-N (E)-4-oxonon-2-enal Chemical compound CCCCCC(=O)\C=C\C=O SEPPVOUBHWNCAW-FNORWQNLSA-N 0.000 description 1
- LLBZPESJRQGYMB-UHFFFAOYSA-N 4-one Natural products O1C(C(=O)CC)CC(C)C11C2(C)CCC(C3(C)C(C(C)(CO)C(OC4C(C(O)C(O)C(COC5C(C(O)C(O)CO5)OC5C(C(OC6C(C(O)C(O)C(CO)O6)O)C(O)C(CO)O5)OC5C(C(O)C(O)C(C)O5)O)O4)O)CC3)CC3)=C3C2(C)CC1 LLBZPESJRQGYMB-UHFFFAOYSA-N 0.000 description 1
- 102100029211 E3 ubiquitin-protein ligase TTC3 Human genes 0.000 description 1
- 101000633723 Homo sapiens E3 ubiquitin-protein ligase TTC3 Proteins 0.000 description 1
- 241000009298 Trigla lyra Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention discloses a kind of hydrogen-feeding system integral type regulator, arrival end, outlet end and the pressure relieving end integrated including valve body, in valve body, and arrival end is for accessing high pressure hydrogen and being depressurized, and outlet end is for releasing pressure-reduced hydrogen gas, and pressure relieving end is for hydrogen of releasing；Arrival end includes inlet attack, filter, one-level pressure relief valve, second depressurized valve, accesses high pressure hydrogen by inlet attack, after filter cleaning, passes sequentially through one-level pressure relief valve and the realization of second depressurized valve is depressurized twice；Outlet end is equipped with pressure sensor and outlet connection, and the pressure for the pressure-reduced hydrogen gas released with monitoring through outlet connection is measured by pressure sensor；Pressure relieving end is equipped with relief valve, hand stop valve, check valve, relief fittings, by controlling relief valve, hand stop valve, check valve, so that hydrogen is released by relief fittings.Its each component is integrated into same valve body by the present invention, reduces structure size, is reduced leak source, is guaranteed the safe and reliable of hydrogen-feeding system.
Description
Technical field
The present invention relates to vehicle-mounted hydrogen-feeding system technical field more particularly to a kind of hydrogen-feeding system integral type regulators.
Background technique
Hydrogen Energy is as a kind of efficient clean energy resource, the every field being just gradually applied in production and living, in recent years,
Hydrogen energy automobile is even more to have obtained biggish development.
Voltage regulating module is one of corn module of hydrogen-feeding system, steady to pile output for depressurizing high pressure hydrogen
Fixed low pressure hydrogen.It is traditionally many by filter, pressure reducing valve, low pressure sensor, unloading valve, hand stop valve, check valve etc.
Discrete functions component composition, the components spelling group that the prior art is mostly based on simple function forms, and module size is big, conduit and connects
Head quantity is more, at high cost, low efficiency, the mass production after being unfavorable for vehicle typification.
Therefore, it is necessory to design the regulator of a integral type to solve the above problems.
Summary of the invention
In view of this, the embodiment provides a kind of hydrogen-feeding system integral type regulator, by its each part set
At arriving in same valve body, reduce structure size, reduces leak source, guarantee the safe and reliable of hydrogen-feeding system.
To achieve the above object, present invention employs a kind of technical solutions: a kind of hydrogen-feeding system integral type regulator, institute
Arrival end, outlet end and pressure relieving end that regulator includes valve body, integrates in the valve body are stated, the arrival end is for accessing
High pressure hydrogen is simultaneously depressurized, and the outlet end is for releasing pressure-reduced hydrogen gas, and the pressure relieving end is for hydrogen of releasing；
The arrival end includes inlet attack, filter, one-level pressure relief valve, second depressurized valve, passes through the inlet attack
High pressure hydrogen is accessed, after the filter cleaning, the one-level pressure relief valve is passed sequentially through and second depressurized valve is realized twice
Decompression；
The outlet end is equipped with pressure sensor and outlet connection, is measured and is monitored described in warp by the pressure sensor
The pressure for the pressure-reduced hydrogen gas that outlet connection is released；
The pressure relieving end is equipped with relief valve, hand stop valve, check valve, relief fittings, by controlling the relief valve, hand
Dynamic shut-off valve, check valve, so that hydrogen is released by the relief fittings.
Further, the outlet end is parallel with pressure relieving end, and the arrival end is perpendicular to the outlet end and pressure relieving end.
Further, it is equipped with the first spring and the first adjusting nut in the one-level pressure relief valve, is adjusted by described first
Nut compresses first spring and adjusts charge flow rate to depressurize.
Further, it is equipped with second spring and the second adjusting nut in the second depressurized valve, is adjusted by described second
Nut compresses the second spring and adjusts charge flow rate to depressurize.
Further, it is additionally provided with retaining ring and O-ring in the valve body, the O-ring, the two is installed on the retaining ring
Play sealing.
Further, the valve body and the junction of inlet attack, outlet connection, relief fittings are UNF screw thread.
Further, the inlet attack uses SAE nipple, is threadedly engaged with the UNF of valve body.
Further, the outlet connection uses SAE nipple, is threadedly engaged with the UNF of valve body.
Further, the relief fittings uses SAE nipple, is threadedly engaged with the UNF of valve body.
The technical solution that the embodiment of the present invention provides has the benefit that (1) integrated form saves each functional component
Between whole connecting lines and connector, structure size substantially reduce, system leak source is greatly decreased, and have overpressure protection,
One-way guide flow function；(2) easy to operate, allow the hydrogen-feeding system more secure and reliable of hydrogen cell automobile, can independently be arranged in
On vehicle body, system assembly efficiency is greatly improved, and product cost can also be greatly reduced.
Detailed description of the invention
Fig. 1 is the cross-sectional view of hydrogen-feeding system integral type regulator of the invention；
Fig. 2 is the working principle diagram of hydrogen-feeding system integral type regulator of the invention.
In figure: 1- valve body, 2- inlet attack, 3- filter, 4- one-level pressure relief valve, 5- second depressurized valve, 6- pressure sensing
Device, 7- outlet connection, 8- relief valve, 9- hand stop valve, 10- check valve, 11- relief fittings, the first spring of 12-, 13- entrance
End, the outlet end 14-, 15- pressure relieving end, 16- second spring, the first adjusting nut of 17-, the second adjusting nut of 18-, 19- retaining ring,
20-O type circle.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is further described.
As shown in Figure 1, embodiment of the invention discloses a kind of hydrogen-feeding system integral type regulator, including valve body 1,
It is integrated in the valve body 1 there are three holding, respectively arrival end 13, outlet end 14 and pressure relieving end 15.The arrival end 13, outlet end
14 and pressure relieving end 15 be respectively used to access and high pressure hydrogen and depressurized, release pressure-reduced hydrogen gas, hydrogen of releasing.Preferably, described
Outlet end 14 is parallel with pressure relieving end 15, and the arrival end 13 is perpendicular to the outlet end 14 and pressure relieving end 15.
The arrival end 13 includes inlet attack 2, filter 3, one-level pressure relief valve 4, second depressurized valve 5, high pressure hydrogen (example
Such as, 70MPa) pass through the entrance 2 into the arrival end 13, successively pass through the filter 3, one-level pressure relief valve 4 and second level
After pressure reducing valve 5, low pressure hydrogen (for example, 35MPa) is exported by the outlet end 14.The one-level pressure relief valve 4, second depressurized valve 5
Using concatenated mode, the pressure regulation mode of this kind of two stage pressure reducing improves the stability of the regulator and the stabilization of decompression
Property.
The inlet attack 2 is designed according to the high pressure hydrogen pipe outside diameter used, can satisfy the matching of different tube diameters.Institute
Filter 3 is stated for impurity screening, enters the pure of gas to ensure.12 He of the first spring is equipped in the one-level pressure relief valve 4
First adjusting nut 17 compresses first spring 12 and adjusts air inlet by the first adjusting nut 17 of the one-level pressure relief valve 4
Flow can largely reduce high-pressure gas pressure.It is equipped with second spring 16 and second in the second depressurized valve 5 and adjusts spiral shell
Mother 18 drops to middle pressure by high-pressure gas pressure after level-one decompression 4, then adjusts by the second of the second depressurized valve 5
Nut 18 compresses the size that the second spring 16 adjusts air inlet aperture, can the successional pressure for changing the outlet end 14
Power.
The outlet end 14 be equipped with pressure sensor 6 and outlet connection 7, measured by the pressure sensor 6 with
Monitor the gas pressure released through the outlet connection 7.In order to ensure the outlet connection 7 pressure stability, another
End is configured in parallel with adjustable relief valve end (namely pressure relieving end 15), to prevent the failure of the valve body 1, protects rear end fuel
Pile.The outlet connection 7 is designed according to the high pressure hydrogen pipe outside diameter used, can satisfy the matching of different tube diameters.
The pressure relieving end 15 is equipped with relief valve 8, hand stop valve 9, check valve 10, relief fittings 11, by described in control
Relief valve 8, hand stop valve 9, check valve 10, so that hydrogen is released by the relief fittings 11.The relief valve 8, manually
Shut-off valve 9, check valve 10 are used to the off/on of control piper.The hand stop valve 9 improves the behaviour of the valve body 1
The property made uses in the relief fittings 11 of the pressure relieving end 15 for releasing for usually gas displacement and screws in the unidirectional of joint geometry
Valve 10 allows entire hydrogen-feeding system to accomplish to concentrate discharge convenient for pipeline and the tandem of TPRD pressure duct of releasing.15 energy of pressure relieving end
It is enough that replacement piping and hydrogen bottle high-pressure discharge pipeline is solved to converge one, accomplish that hydrogen concentrates discharge, while preventing high pressure gas
Reverse irrigation, improve the safety of the regulator, while reducing the requirement for bearing back pressure to the regulator, reduce design
And production cost.The relief fittings 11 is designed according to the high pressure hydrogen pipe outside diameter used, can satisfy the matching of different tube diameters
Property.Preferably,
Preferably, the valve body 1 and the junction of inlet attack 2, outlet connection 7, relief fittings 11 are UNF screw thread.
Preferably, the inlet attack 2, outlet connection 7, relief fittings 11 are all made of SAE nipple, the UNF spiral shell with the valve body 1
Line cooperation.
It is additionally provided with retaining ring 19 (not showing in Fig. 1) and O-ring 20 in the valve body 1, institute is installed on the retaining ring 19
O-ring 20 is stated, to protect the O-ring 20, plays a part of to limit and seal, the O-ring 20 seals.In Fig. 1 only
Part O-ring 20 is drawn to make example.The sealing performance of the valve body 1, while side are improved by the soft seal of the O-ring 20
Just maintenance.The cooperation of the internal orifice dimension of the one-level pressure relief valve 4, the outer housing of second depressurized valve 5 and entire valve body 1 is adopted
It is sealed with the O-ring 20, can reduce the leakage in the regulator, improve the air-tightness of valve body 1.
The technical solution that the embodiment of the present invention provides has the benefit that (1) integrated form saves each functional component
Between whole connecting lines and connector, structure size substantially reduce, system leak source is greatly decreased, and have overpressure protection,
One-way guide flow function；(2) easy to operate, allow the hydrogen-feeding system more secure and reliable of hydrogen cell automobile, can independently be arranged in
On vehicle body, system assembly efficiency is greatly improved, and product cost can also be greatly reduced.
It is worth noting that: in the present invention unless specifically defined or limited otherwise, term " installation ", " connected ",
The terms such as " connection ", " fixation " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or one
Ground connection, can be mechanical connection, for the ordinary skill in the art, can understand above-mentioned art as the case may be
The concrete meaning of language in the present invention.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. hydrogen-feeding system integral type regulator, it is characterised in that: the regulator include valve body, in the valve body integrate
Arrival end, outlet end and pressure relieving end, the arrival end is for accessing high pressure hydrogen and depressurized, and the outlet end is for putting
Pressure-reduced hydrogen gas out, the pressure relieving end is for hydrogen of releasing；
The arrival end includes inlet attack, filter, one-level pressure relief valve, second depressurized valve, is accessed by the inlet attack
High pressure hydrogen passes sequentially through the one-level pressure relief valve and the realization of second depressurized valve is depressurized twice after the filter cleaning；
The outlet end is equipped with pressure sensor and outlet connection, is measured and is monitored through the outlet by the pressure sensor
The pressure for the pressure-reduced hydrogen gas that connector is released；
The pressure relieving end is equipped with relief valve, hand stop valve, check valve, relief fittings, by controlling the relief valve, cutting manually
Only valve, check valve, so that hydrogen is released by the relief fittings.
2. hydrogen-feeding system integral type regulator according to claim 1, it is characterised in that: the outlet end and pressure relieving end
In parallel, the arrival end is perpendicular to the outlet end and pressure relieving end.
3. hydrogen-feeding system integral type regulator according to claim 1, it is characterised in that: set in the one-level pressure relief valve
There are the first spring and the first adjusting nut, first spring is compressed by first adjusting nut and adjusts charge flow rate to subtract
Pressure.
4. hydrogen-feeding system integral type regulator according to claim 1, it is characterised in that: set in the second depressurized valve
There are second spring and the second adjusting nut, the second spring is compressed by second adjusting nut and adjusts charge flow rate to subtract
Pressure.
5. hydrogen-feeding system integral type regulator according to claim 1, it is characterised in that: be additionally provided with gear in the valve body
Circle and O-ring, install the O-ring, the two plays sealing on the retaining ring.
6. hydrogen-feeding system integral type regulator according to claim 1, it is characterised in that: the valve body connects with entrance
Head, outlet connection, relief fittings junction be UNF screw thread.
7. hydrogen-feeding system integral type regulator according to claim 6, it is characterised in that: the inlet attack uses
SAE nipple is threadedly engaged with the UNF of valve body.
8. hydrogen-feeding system integral type regulator according to claim 6, it is characterised in that: the outlet connection uses
SAE nipple is threadedly engaged with the UNF of valve body.
9. hydrogen-feeding system integral type regulator according to claim 6, it is characterised in that: the relief fittings uses
SAE nipple is threadedly engaged with the UNF of valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195015.2A CN109340411A (en) | 2018-10-15 | 2018-10-15 | Hydrogen-feeding system integral type regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195015.2A CN109340411A (en) | 2018-10-15 | 2018-10-15 | Hydrogen-feeding system integral type regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340411A true CN109340411A (en) | 2019-02-15 |
Family
ID=65310067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811195015.2A Pending CN109340411A (en) | 2018-10-15 | 2018-10-15 | Hydrogen-feeding system integral type regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340411A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129546A (en) * | 2019-12-28 | 2020-05-08 | 中国船舶重工集团公司第七一八研究所 | Multifunctional combination valve of vehicle-mounted hydrogen system and method for applying multifunctional combination valve to hydrogenation and fuel cell |
| CN111911808A (en) * | 2020-06-16 | 2020-11-10 | 西安航天动力研究所 | Integrated pressure reducing device |
| CN112240485A (en) * | 2020-03-05 | 2021-01-19 | 北京新能源汽车技术创新中心有限公司 | Hydrogenation port device for fuel cell vehicle and fuel cell vehicle provided with same |
| CN112524490A (en) * | 2020-12-02 | 2021-03-19 | 中国商用飞机有限责任公司 | Pressure reducing regulator |
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| CN2410426Y (en) * | 1999-10-22 | 2000-12-13 | 沈阳海龙环保节能设备制造有限责任公司 | Liquiefied gas-gasoline two fuel conversion device for car |
| JP2017040502A (en) * | 2015-08-18 | 2017-02-23 | 愛三工業株式会社 | Fuel gas leakage detection device for fuel supply device |
| CN108087602A (en) * | 2017-12-15 | 2018-05-29 | 上海瀚氢动力科技有限公司 | A kind of integrated pressure reducing valve |
| CN108590987A (en) * | 2018-06-13 | 2018-09-28 | 北京华怡净化科技研究所有限公司 | A kind of gas power generator and method |
| CN209278556U (en) * | 2018-10-15 | 2019-08-20 | 武汉格罗夫氢能汽车有限公司 | Hydrogen-feeding system integral type regulator |
-
2018
- 2018-10-15 CN CN201811195015.2A patent/CN109340411A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2410426Y (en) * | 1999-10-22 | 2000-12-13 | 沈阳海龙环保节能设备制造有限责任公司 | Liquiefied gas-gasoline two fuel conversion device for car |
| JP2017040502A (en) * | 2015-08-18 | 2017-02-23 | 愛三工業株式会社 | Fuel gas leakage detection device for fuel supply device |
| CN108087602A (en) * | 2017-12-15 | 2018-05-29 | 上海瀚氢动力科技有限公司 | A kind of integrated pressure reducing valve |
| CN108590987A (en) * | 2018-06-13 | 2018-09-28 | 北京华怡净化科技研究所有限公司 | A kind of gas power generator and method |
| CN209278556U (en) * | 2018-10-15 | 2019-08-20 | 武汉格罗夫氢能汽车有限公司 | Hydrogen-feeding system integral type regulator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129546A (en) * | 2019-12-28 | 2020-05-08 | 中国船舶重工集团公司第七一八研究所 | Multifunctional combination valve of vehicle-mounted hydrogen system and method for applying multifunctional combination valve to hydrogenation and fuel cell |
| CN112240485A (en) * | 2020-03-05 | 2021-01-19 | 北京新能源汽车技术创新中心有限公司 | Hydrogenation port device for fuel cell vehicle and fuel cell vehicle provided with same |
| CN111911808A (en) * | 2020-06-16 | 2020-11-10 | 西安航天动力研究所 | Integrated pressure reducing device |
| CN111911808B (en) * | 2020-06-16 | 2022-05-10 | 西安航天动力研究所 | Integrated pressure reducing device |
| CN112524490A (en) * | 2020-12-02 | 2021-03-19 | 中国商用飞机有限责任公司 | Pressure reducing regulator |
| CN112524490B (en) * | 2020-12-02 | 2022-05-06 | 中国商用飞机有限责任公司 | Pressure reducing regulator |
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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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210220 Address after: 046000 7th floor, block a, Yuecheng financial service center, No.36 zhuomaxi street, Changzhi City, Shanxi Province Applicant after: Zhongji hydrogen energy automobile (Changzhi) Co.,Ltd. Address before: Room 101, 1 / F, building 13, phase I, industrial incubation base, east of future third road and south of Keji fifth road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Applicant before: WUHAN LUOGEFU HYDROGEN ENERGY AUTOMOBILE Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190215 |