CN112145957A - 35MPa hydrogenation supercharging device of hydrogen fuel cell passenger car - Google Patents
35MPa hydrogenation supercharging device of hydrogen fuel cell passenger car Download PDFInfo
- Publication number
- CN112145957A CN112145957A CN202011154923.4A CN202011154923A CN112145957A CN 112145957 A CN112145957 A CN 112145957A CN 202011154923 A CN202011154923 A CN 202011154923A CN 112145957 A CN112145957 A CN 112145957A
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- booster pump
- fuel cell
- hydrogenation
- gas
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
- F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
- F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/065—Arrangements for producing propulsion of gases or vapours
- F17D1/07—Arrangements for producing propulsion of gases or vapours by compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/34—Hydrogen distribution
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a 35MPa hydrogen-adding supercharging device of a hydrogen fuel cell passenger car, which comprises a hydrogen booster pump, a safety switching device and a hydrogen adding gun, wherein an air inlet of the hydrogen booster pump is connected with a hydrogen source through an air inlet pipe and a hydrogen metal hose, an air outlet of the hydrogen booster pump is connected with the hydrogen adding gun through an air outlet pipe and a hydrogen adding gun hose, a driving air inlet of the hydrogen booster pump is connected with a driving air source through a driving air pipe, and the safety switching device is arranged on the driving air pipe and close to the end of the hydrogen booster pump. The 35MPa hydrogenation supercharging device of the hydrogen fuel cell bus is a device specially designed for supplementing or filling high-pressure hydrogen for a vehicle-mounted hydrogen system of a hydrogen fuel cell vehicle, two non-electrically driven gas booster pumps are selected as gas supercharging power, the pressure of output hydrogen after supercharging can reach 37MPa at most, and a good effect is achieved.
Description
Technical Field
The invention relates to a hydrogen fuel cell bus, in particular to a 35MPa hydrogenation supercharging device of the hydrogen fuel cell bus, and belongs to the technical field of new energy automobiles.
Background
The new energy automobile has great significance for solving the problems of environmental pollution and energy crisis, and draws more and more attention. The hydrogen fuel cell automobile becomes a hotspot for electric automobile research due to no pollution and zero emission, and overcomes the defect of short driving range of the pure electric automobile. Meanwhile, the hydrogen fuel cell automobile has the advantages of high energy conversion efficiency, environmental friendliness and the like which are incomparable with internal combustion engine automobiles, and still maintains the performances of acceleration performance, high speed, long-distance running, safety, comfort and the like of the traditional internal combustion engine automobile.
At present, hydrogen fuel cell automobile technology is still in the research, development and demonstration operation stage, and a large number of problems need to be systematically considered and solved in the aspects of vehicle system technology, hydrogenation facilities, vehicle hydrogen storage, manufacturing cost, operation experience, standards and regulations, and the like, which requires close cooperation between governments, enterprises, research institutions and governments of various countries. Therefore, it is necessary to develop research on hydrogen fuel cell automobile technical solutions and research on testing techniques.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a 35MPa hydrogenation supercharging device of a hydrogen fuel cell bus, which is a device specially designed for supplementing or filling high-pressure hydrogen for a vehicle-mounted hydrogen system of a hydrogen fuel cell vehicle, selects two non-electrically driven gas booster pumps as gas supercharging power, and outputs the highest hydrogen pressure of 37MPa after pressurization, thereby solving the existing problems.
The technical scheme of the invention is as follows: the utility model provides a hydrogen fuel cell passenger train 35MPa hydrogenation supercharging device, it includes hydrogen booster pump, safety switching device and hydrogenation rifle, the air inlet of hydrogen booster pump passes through the intake pipe and hydrogen metal collapsible tube is connected with hydrogen source, and the hydrogen booster pump gas outlet passes through outlet duct and hydrogenation rifle hose connection hydrogenation rifle, and the drive gas entry of hydrogen booster pump is connected with drive gas source through driving the trachea, and safety switching device sets up and is close to hydrogen booster pump end on driving the trachea.
And the gas inlet pipe is provided with a hydrogen inlet pressure gauge and a hydrogen supply valve.
And the driving air pipe is respectively provided with a water and oil removing assembly, a pressure regulating valve, a driving air pressure gauge and a driving air valve.
And the gas outlet pipe is provided with a heat exchanger and a hydrogen gas outlet pressure gauge and is used for cooling and conveying the high-temperature gas of the hydrogen booster pump.
The gas outlet pipe is also provided with a safety valve, the safety valve is connected with the gas outlet pipe through a manual ball valve, and the manual ball valve is arranged on a gas outlet pipe pipeline between the hydrogenation gun hose and the heat exchanger.
And the air outlet pipe is provided with an electrostatic grounding device.
The invention has the beneficial effects that: compared with the prior art, the 35MPa hydrogenation supercharging device for the hydrogen fuel cell bus is a device specially designed for supplementing or filling high-pressure hydrogen for a vehicle-mounted hydrogen system of a hydrogen fuel cell vehicle, two non-electrically driven gas booster pumps are selected as gas supercharging power, and the highest output hydrogen pressure after supercharging can reach 37 MPa.
The device of the invention utilizes the low-pressure gas drive of the large-area piston to generate high-pressure gas on the small-area piston. The output air pressure is adjusted steplessly by the driving air pressure. Its advantage is: 1) the maintenance is simple: the gas booster pump has few parts and seals, simple maintenance and low cost; 2) the cost performance is high, and the gas booster pump has the characteristics of high output performance and low cost; 3) the adjustability is strong, and the output pressure and the flow of the gas booster pump are accurately adjusted by the pressure adjusting valve for driving the gas; 4) adjusting the driving air pressure to enable the output pressure of the air pressure pipeline booster pump to be accurately adjusted between the pre-increased air pressure and the maximum output pressure; 5) The output flow is large, the pneumatic booster pump only needs 0.2-0.8 Mpa to compress air, all 'O' -shaped rings and vulnerable parts of the same series can be replaced mutually, the maintenance cost is greatly reduced, and no lubricant is needed; 6) The automatic pressure maintaining device has the advantages that automatic pressure maintaining is realized, the gas booster pump rapidly reciprocates during operation, the reciprocating speed of the pump is reduced until the pump stops when the output pressure is close to a set pressure value, the pressure is maintained, the energy consumption is low at the moment, no heat is generated, no part moves, and when the pressure balance is broken, the gas booster pump automatically starts to work to the next balance.
The principle of the pneumatic booster pump in the invention is to generate high air pressure of a small-area piston by utilizing low air pressure of a large-area piston. It is driven by gas, has no electric arc and spark, and is completely used in the place with inflammable and explosive liquid or gas. No matter what kind of reason causes the pressure drop of the pressure maintaining loop, the gas booster pump will automatically start to supplement the leakage pressure and keep the loop pressure constant.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Example 1: as shown in the attached figure 1, the 35MPa hydrogenation supercharging device of the hydrogen fuel cell passenger car comprises a hydrogen booster pump 5, a safety switching device 12 and a hydrogenation gun 10, wherein an air inlet of the hydrogen booster pump 5 is connected with a hydrogen source through an air inlet pipe 16 and a hydrogen metal hose 15, an air outlet of the hydrogen booster pump 5 is connected with the hydrogenation gun 10 through an air outlet pipe 17 and a hydrogenation gun hose 11, a driving air inlet of the hydrogen booster pump 5 is connected with a driving air source through a driving air pipe 18, and the safety switching device 12 is arranged on the driving air pipe 18 and is close to the end of the hydrogen booster pump 5. The two hydrogen booster pumps 5 are connected in parallel or in series, so that the application range and the applicability of the device are greatly improved.
Further, a hydrogen gas inlet pressure gauge 14 and a hydrogen gas inlet valve 13 are provided in the inlet pipe 16.
Furthermore, the driving air pipe 18 is respectively provided with a water and oil removing assembly 1, a pressure regulating valve 2, a driving air pressure gauge 3 and a driving air valve 4.
Further, the gas outlet pipe 17 is provided with a heat exchanger 6 and a hydrogen gas outlet pressure gauge 7 for cooling and conveying the high-temperature gas of the hydrogen booster pump 5.
Further, a safety valve 8 is further arranged on the gas outlet pipe 17, the safety valve 8 is connected with the gas outlet pipe 17 through a manual ball valve 9, and the manual ball valve 9 is arranged on a pipeline of the gas outlet pipe 17 between the hydrogenation gun hose 11 and the heat exchanger 6.
Further, the air outlet pipe 17 is provided with an electrostatic grounding device.
The system of the invention is shown in figure 1, low-pressure hydrogen enters from a hydrogen metal hose 15 and enters the air inlet of a hydrogen booster pump 5 through a hydrogen supply valve 13. The driving gas (compressed air) enters the driver pressure regulating valve 2 from the water and oil removing assembly 1, is subjected to pressure reduction and then enters the driving gas inlet of the hydrogen booster pump 5 through the driving gas valve 4. The hydrogen booster pump 5 starts to work under the action of driving gas, low-pressure hydrogen is compressed, high-pressure hydrogen flows out from the outlet of the hydrogen booster pump 5, passes through the heat exchanger 6, and finally enters a downstream filling port through the hydrogenation gun hose 11 and the hydrogenation gun 10, and the pressure of the pressurized hydrogen is displayed by the hydrogen gas outlet pressure gauge 7.
A safety valve 8 and a manual ball valve 9 are connected between a hydrogen gas outlet pressure gauge 7 and a hydrogenation gun hose 11, when the pressure value in the pipeline exceeds the set value of the safety valve 8, the safety valve 8 is opened, and gas is discharged from the safety valve 8 through an emptying pipeline. The manual ball valve 9 can be opened when the pressurization system needs to discharge gas, and the gas is directly discharged.
The supercharging operation steps of the supercharging system of the invention are as follows:
1) setting a charging operation safety warning area, and prohibiting the entry of fire, mobile phone and irrelevant personnel in the warning area when hydrogen is charged;
2) pushing the pressurizing device to be close to the air source (within 2 meters);
3) drawing out the two electrostatic grounding clamps, and respectively clamping a field grounding pile (or a hydrogen gas source bottle) and a grounding end of a vehicle to be filled with gas;
4) taking down the hydrogenation gun from the hydrogenation gun stock base, confirming that the hydrogenation gun is in a closed state, and then inserting into an inflation valve of a vehicle to be filled with gas;
5) the driving air switch is closed, and a driving air source (compressed air decompressed to 0.8 MPa) is connected.
The vehicle-mounted hydrogen system filling step of the pressurization system comprises the following steps:
1) closing the air inlet valve and the air escape valve;
2) as shown in fig. 1, a hydrogen source (usually packaging hydrogen) is connected through a hydrogen metal hose 15 and a hydrogen source switch is turned on;
3) opening an air inlet valve, slightly opening an air escape valve, and purging a pipeline;
4) opening a switch of a hydrogenation gun 10, and filling hydrogen until the pressure is balanced (the reading of a hydrogen gas outlet pressure gauge 7 is stable);
5) opening a driving gas source switch, opening a driving gas switch, adjusting a driving gas pressure regulating valve 2, regulating the driving gas pressure to 0.6-1.0 MPa (depending on a pressurization pressure target value), and starting pressurization of the hydrogen;
6) when the reading of the hydrogen gas outlet pressure gauge 7 reaches the pressurization target pressure, the driving gas switch is closed, and the switch of the hydrogenation gun 10 is closed;
the operation steps after the hydrogen filling of the vehicle-mounted hydrogen system of the pressurization system is finished are as follows:
1) taking down the hydrogenation gun 10 and hanging back to the gun seat of the hydrogenation supercharging device;
2) the electrostatic grounding clamp is disassembled and placed back into the hydrogenation supercharging device;
3) closing a hydrogen source switch;
4) closing a driving air source switch, and disconnecting the driving air source switch from the driving air source;
5) opening the air escape valve to exhaust the gas in the pipeline of the air body pressurization system;
6) the connection between the hydrogen metal hose 15 and the gas source is loosened, and the hydrogen metal hose 15 is retracted into the hydrogenation and pressurization device;
7) the whole operation process is completed.
The present invention is not described in detail, but is known to those skilled in the art. Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (6)
1. The utility model provides a 35MPa hydrogenation supercharging device of hydrogen fuel cell passenger train, it includes hydrogen booster pump (5), safe auto-change over device (12) and hydrogenation rifle (10), its characterized in that: the gas inlet of hydrogen booster pump (5) passes through intake pipe (16) and hydrogen metal collapsible tube (15) and is connected with the hydrogen source, and hydrogen booster pump (5) gas outlet passes through outlet duct (17) and hydrogenation rifle hose (11) and connects hydrogenation rifle (10), and the drive gas entry of hydrogen booster pump (5) is connected with the drive air supply through drive trachea (18), and safety switching device (12) set up and are close to hydrogen booster pump (5) end on drive trachea (18).
2. The 35MPa hydrogenation and pressurization device for a hydrogen fuel cell passenger car according to claim 1, characterized in that: and a hydrogen inlet pressure gauge (14) and a hydrogen supply valve (13) are arranged on the air inlet pipe (16).
3. The 35MPa hydrogenation and pressurization device for a hydrogen fuel cell passenger car according to claim 1, characterized in that: the driving air pipe (18) is respectively provided with a water and oil removing assembly (1), a pressure regulating valve (2), a driving air pressure gauge (3) and a driving air valve (4).
4. The 35MPa hydrogenation and pressurization device for a hydrogen fuel cell passenger car according to claim 1, characterized in that: and the gas outlet pipe (17) is provided with a heat exchanger (6) and a hydrogen gas outlet pressure gauge (7) and is used for cooling and conveying the high-temperature gas of the hydrogen booster pump (5).
5. The hydrogen fuel cell passenger vehicle 35MPa hydrogenation pressure device according to claim 1 or 4, characterized in that: the gas outlet pipe (17) is also provided with a safety valve (8), the safety valve (8) is connected with the gas outlet pipe (17) through a manual ball valve (9), and the manual ball valve (9) is arranged on a gas outlet pipe (17) pipeline between the hydrogenation gun hose (11) and the heat exchanger (6).
6. The hydrogen fuel cell passenger vehicle 35MPa hydrogenation pressure device according to claim 1 or 4, characterized in that: and the air outlet pipe (17) is provided with an electrostatic grounding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011154923.4A CN112145957A (en) | 2020-10-26 | 2020-10-26 | 35MPa hydrogenation supercharging device of hydrogen fuel cell passenger car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011154923.4A CN112145957A (en) | 2020-10-26 | 2020-10-26 | 35MPa hydrogenation supercharging device of hydrogen fuel cell passenger car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112145957A true CN112145957A (en) | 2020-12-29 |
Family
ID=73953210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011154923.4A Pending CN112145957A (en) | 2020-10-26 | 2020-10-26 | 35MPa hydrogenation supercharging device of hydrogen fuel cell passenger car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112145957A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114665128A (en) * | 2022-04-07 | 2022-06-24 | 上海捷氢科技股份有限公司 | Solid hydrogen storage and supply device and hydrogen supply method |
-
2020
- 2020-10-26 CN CN202011154923.4A patent/CN112145957A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114665128A (en) * | 2022-04-07 | 2022-06-24 | 上海捷氢科技股份有限公司 | Solid hydrogen storage and supply device and hydrogen supply method |
| CN114665128B (en) * | 2022-04-07 | 2023-12-19 | 上海捷氢科技股份有限公司 | Solid-state hydrogen storage and supply device and hydrogen supply method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108361546B (en) | Hydrogenation system of skid-mounted hydrogenation equipment of hydrogen compressor and hydrogenation method thereof | |
| CN202082618U (en) | 70MPa mobile type hydrogen filling device | |
| CN109611170B (en) | Waste heat recovery system for free piston expander-linear generator vehicle based on composite power supply | |
| CN103511833B (en) | Portable self-cooling is high pressure hydrogen supercharging device and method but | |
| CN103437870A (en) | System and method for comprehensively utilizing residual heat of compressed natural gas engine (CNGE) | |
| CN108979771A (en) | Hydrogen internal combustion engine automobile high-pressure hydrogen storing pressure tank energy recyclable device | |
| CN112145957A (en) | 35MPa hydrogenation supercharging device of hydrogen fuel cell passenger car | |
| CN108613012A (en) | A kind of hydrogenation stations pneumatic type hydrogen compression gas storage system | |
| CN108332046B (en) | Hydrogenation system in pneumatic pump skid-mounted hydrogenation equipment and hydrogenation method thereof | |
| CN213394593U (en) | 35MPa hydrogenation supercharging equipment for hydrogen fuel cell passenger car | |
| CN203488988U (en) | Portable self-cooling high-pressure hydrogen pressurization device | |
| CN109339938A (en) | Three condition two-stage consecutive pressurization system and its control method | |
| CN216280670U (en) | Integrated energy-saving type supercharging hydrogenation device | |
| CN102410911B (en) | Detection method of gas tightness of CNG fuel system and detection apparatus thereof | |
| WO2010063150A1 (en) | A compress equipment of an air hybrid automobile | |
| CN110107384B (en) | Energy recycling system based on low-speed machine exhaust energy stage separation output | |
| CN111853530A (en) | Detection device and detection method for vehicle-mounted hydrogen system | |
| CN2724213Y (en) | Non electric driven movable high pressure hydrogen filling system | |
| CN202210015U (en) | Airtightness detection device for CNG (compressed natural gas) fuel system | |
| CN108952907A (en) | A kind of the bleed pressure energy regenerating and utilization technology of CNG natural gas vehicle | |
| CN112186221A (en) | Vehicle-mounted hydrogen supply device of hydrogen fuel cell passenger car | |
| CN203822383U (en) | Air energy engine | |
| CN106704071A (en) | Oil-electricity-gas hybrid power output device for vehicle engine | |
| CN203717113U (en) | Exhaust turbine pressure increasing delay compensation device | |
| CN212408251U (en) | Detection device for vehicle-mounted hydrogen system |
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 |