CN102287347A - Solar constant pressure heating hot airflow engine generation system - Google Patents
Solar constant pressure heating hot airflow engine generation system Download PDFInfo
- Publication number
- CN102287347A CN102287347A CN2011101194886A CN201110119488A CN102287347A CN 102287347 A CN102287347 A CN 102287347A CN 2011101194886 A CN2011101194886 A CN 2011101194886A CN 201110119488 A CN201110119488 A CN 201110119488A CN 102287347 A CN102287347 A CN 102287347A
- Authority
- CN
- China
- Prior art keywords
- solar
- solar energy
- pressure heating
- air
- level pressure
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000006096 absorbing agent Substances 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 125000004122 cyclic group Chemical group 0.000 description 9
- 238000007906 compression Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000010248 power generation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 108020005351 Isochores Proteins 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Images
Classifications
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to a solar constant pressure heating hot airflow engine generation system which comprises a double-shaft tracking solar focusing reflector surface system, a solar constant pressure heating power conversion unit (i.e. a hot airflow engine) and a generator, and is characterized in that: the solar constant pressure heating power conversion unit comprises an air compressor, an air storage tank, a solar energy absorber and an output shaft power cylinder component; the output shaft power cylinder component comprises a cylinder, a piston, a connecting rod and a crank; an air inlet and an exhaust port which are arranged on the cylinder, an air inlet valve which is arranged on the air inlet, an exhaust valve which is arranged on the exhaust port, the air compressor, the air storage tank and the solar energy absorber are sequentially and serially connected by an air transmission pipe and then are connected with the air inlet; the piston is connected with the crank through the connecting rod; ; and a crank shaft is coupled with the generator. The solar constant pressure heating hot airflow engine generation system has the advantages that: the air serves as a working substance, no water needs to serve as the working substance, no tower tube (or chimney) is needed, a huge radiating mechanism of a Stirling engine is cancelled, the cost is low, the generation efficiency is high and the stability is good.
Description
Technical field
The present invention relates to a kind of solar energy level pressure heat hot air-flow engine electric power generating system, belong to the solar thermal power power field.
Background technique
Solar thermal power generating and solar energy power generating are the generation modes of two different types of solar electrical energy generation.Modes such as that solar thermal power generating mainly comprises is tower, slot type, dish formula, bar formula, the generating of tower tube hot air flow.
Tower, slot type and the generating of bar formula solar thermal power need water as working medium, and tower tube (chimney) hot air flow solar electrical energy generation needs very high tower tube (chimney).
Dish formula (or disc type) solar electrical energy generation, need not the tower tube, also can need not water as working medium, the Stirling circulation is adopted in the generating of dish formula, because working medium need not water, therefore, solar energy dish formula Stirling engine is also referred to as hot-air engine, its desirable pressure-volume P-V schemes as shown in Figure 1, and it is made up of two thermoisopleths and two isochores.In Fig. 1, a-b is the isothermal compression process, and b-c waits to hold heating process, and c-d is the isothermal expansion process, and d-a waits to hold cooling procedure.According to the requirement of the second law of thermodynamics to high thermal efficiency, the desirable Stirling circuit thermal efficiency is identical with Carnot's cycle, all is maximum.
In December, 2010, first large-sized photovoltaic royalty right demonstrative project of the whole nation that National Energy Board organizes---Dunhuang 20 megawatt photovoltaic generation project round Realization are generated electricity by way of merging two or more grid systems.Domestic first solar thermal power generating royalty right demonstrative project---the Inner Mongol 50 megawatt groove type solar photothermal power generation projects are about to implement.Domestic first solar column tube hot air flow power generation project generated electricity by way of merging two or more grid systems in Wuhai City, the Inner Mongol in October, 2010.On March 20th, 2009, the Hu Jintao General Secretary visited 2009 Chinese international energy-saving and emission-reduction and new energy scientific and technological fairs, and come CAS Electrical Engineering Research Institute Badaling MW level solar energy tower type thermal generation demonstration exhibition booth, power station, frontier nature to this technology has given fully certainly, and point out " this (solar energy thermal-power-generating technology) is pretty good ", development " the high point of cost in early stage is not serious; key is the technology GPRS " in China estimates that this solar energy tower type thermal generation demonstration power station generated electricity by way of merging two or more grid systems in 2011.Domestic first solar energy thermal-power-generating demonstration power station-Nanjing Jiangning District 70kW tower type solar energy thermal power generation experimental project was successfully generated electricity in 2005.
At present, at home, the hot power station of also not demonstrating of generating electricity of disc type solar energy also is nowhere near to its research.The generating of disc type solar energy heat has begun commercial operations in the world, California, USA Solar One and Solar Two power station add up to the operation of 850MW (second phase reaches 1750MW), verified on the dish formula Stirling systems technology and be feasible economically, has great vitality, the developing direction of the solar electrical energy generation of the U.S. is mainly based on solar energy thermal-power-generating, and because disc type solar energy heat generating generating efficiency in current solar electrical energy generation is the highest, the generating of the first-selected disc type solar energy heat of the developing direction of the solar electrical energy generation of the U.S..
Summary of the invention
The purpose of this invention is to provide a kind of working medium is air, need not water and does working medium, also need not tower tube (or chimney), has saved the solar energy level pressure heat hot air-flow engine electric power generating system of the cooling mechanism that Stirling engine is huge in the generating of solar energy butterfly.
The objective of the invention is to realize in the following manner:
The present invention includes double-axis tracking solar focusing mirror surface system, solar energy level pressure heating power converting unit or title hot air flow motor, generator, it is characterized in that: solar energy level pressure heating power converting unit is by air compressor, gas holder, solar collector, output shaft work cylinder assembly constitutes, output shaft work cylinder assembly comprises cylinder, piston, connecting rod and crank, suction port that cylinder is provided with and relief opening, the suction valve that is equipped with on the suction port, the outlet valve that is equipped with on the relief opening, air compressor, gas holder, solar collector is connected with suction port with pneumatic tube order series connection back, piston is connected with crank by connecting rod, crankshaft is connected with generator shaft, the working method of solar energy level pressure heating power converting unit is a level pressure Heating Cyclic mode, heating is finished by solar collector by solar energy, solar energy level pressure heating power converting unit is an open loop system, and its working medium is air.
Advantage of the present invention is: working medium is air, need not water and does working medium, also need not tower tube (or chimney), adopts solar energy level pressure Heating Cyclic mode, has cancelled the huge cooling mechanism of Stirling engine, and cost is low, generating efficiency is high, good stability.
Description of drawings
Fig. 1 is the desirable pressure-volume P-V figure of solar energy dish formula Stirling engine;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is that solar energy level pressure heating power converting unit of the present invention connects the generator Structure schematic representation;
Fig. 4 is the desirable level pressure Heating Cyclic of a solar energy level pressure heating power converting unit of the present invention pressure-volume diagram;
Fig. 5 is that a kind of parallel networking type solar level pressure heat hot air-flow engine electric power generating system of the present invention is implemented state.
Embodiment
With reference to accompanying drawing 2,3,4, the present invention includes double-axis tracking solar focusing mirror surface system 11, solar energy level pressure heating power converting unit (hot air flow motor) 12, generator 10, solar energy level pressure heating power converting unit 12 is by air compressor 1, gas holder 2, solar collector 3, output shaft work cylinder assembly constitutes, output shaft work cylinder assembly comprises cylinder 5, piston 4, connecting rod 8 and crank 9, suction port that cylinder 5 is provided with and relief opening, the suction valve 6 that is equipped with on the suction port, the outlet valve 7 that is equipped with on the relief opening, solar collector 3 is heat exchangers, can be the cavity-type solar adsorber, air compressor 1, gas holder 2, solar collector 3 usefulness pneumatic tube orders series connection back is connected with suction port, in the output shaft work cylinder 5 piston 4 is housed, piston 4 is by connecting rod 8 connecting cranks 9, spool being connected of 9 on crank and generator 10.
A kind of solar energy level pressure heat hot air-flow engine electric power generating system of the present invention, its power generation system core: solar energy level pressure heating power converting unit (hot air flow motor) 12, as shown in Figure 3.Among Fig. 3, air is delivered in the gas holder 2 after air compressor 1 compression, and gas holder 2 is kept air pressure in solar collector 3 constant; When piston 4 when outwards (right side) is mobile from interior (left side) dead point, suction valve 6 is opened, and pressurized air expands through solar collector 3 heating level pressure in output shaft work cylinder 5 from gas holder 2; Piston 4 outwards moves to a certain degree, closes suction valve 6, and piston 4 still outwards moves up to outer (right side) dead point, this section process, and air is adiabatic expansion in exporting shaft work cylinder 5; Then, piston 4 beginnings move inward from the bottom dead-centre, and outlet valve 7 is opened, and closes outlet valve 7 when inner dead centre.
Among Fig. 3, piston 4 outwards moves to bottom dead-centre process from inner dead centre, and air expands and adiabatic expansion through level pressure in the output shaft work cylinder 5, by piston 4, connecting rod 8 and crank 9 output shaft works, 9 on crank is coaxial with generator 10, and shaft work is converted to electric energy by generator 10.
Solar energy level pressure heating power converting unit working medium is air, need not water and does working medium, also need not tower tube (or chimney), adopts solar energy level pressure Heating Cyclic mode, and its pressure-volume p-v figure as shown in Figure 4.In Fig. 4, e-f is the adiabatic compression process, is finished by air compressor 1; F-g is isobaric heating process, is finished by gas holder 2, solar collector 3, piston 4, output shaft work cylinder 5 and suction valve 6; G-h is the adiabatic expansion process, by output shaft work cylinder 5, close suction valve 6, piston 4 is finished; H-e waits to put thermal process, by outlet valve 7 controls.
Air-flow direction has only a direction in the solar energy level pressure heating power converting unit of the present invention, and, this unit is an open loop system, air is entered this unit and is flowed out this unit from the relief opening of exporting shaft work cylinder 5 by air compressor 1 inlet, therefore, solar energy level pressure heating power converting unit of the present invention is called the hot air flow motor.
Four-cycle diesel also is to adopt level pressure Heating Cyclic shown in Figure 4, but diesel engine and hot air flow motor of the present invention have a lot of differences: diesel engine using internal combustion mode, and the present invention adopts the solar energy external heating type; Cylinder of diesel engine has four strokes, i.e. pressurized air stroke, expansion expansion stroke, exhaust stroke and suction stroke, and the output shaft work cylinder among the present invention has only two strokes, and expansion stroke and exhaust stroke promptly expand; Diesel engine need be established oil pump (fuel pump and Injection Pump), and the present invention does not establish oil pump; Adiabatic compression process of the present invention is finished by the compressor that other establishes, and the adiabatic compression process of diesel engine is finished in same cylinder; Level pressure heats used energy difference, and diesel fuel is a diesel oil, and the energy of the present invention is from solar energy.
Hot air flow motor of the present invention with the Stirling engine difference is: the cyclic process of employing is different, and Stirling engine adopts the Stirling circulation, and hot air flow motor of the present invention adopts the level pressure Heating Cyclic; Stirling engine is the system of remaining silent, and the hot air flow motor of this invention is an open loop system; In the Stirling engine gas flow direction be two-way, be hot-air engine, and air-flow direction has only a direction, is the hot air flow motor in the hot air flow motor of the present invention, so as with the Stirling engine difference that is called hot-air engine.The thermal efficiency of the desirable level pressure Heating Cyclic of hot air flow motor is identical with desirable Stirling circulation, hot air flow motor of the present invention is compared with the Stirling engine of solar energy butterfly generating, the advantage of this invention is to have cancelled the huge cooling mechanism of Stirling engine, after hot air expands and finishes merit in this invention output shaft work cylinder 5, hot air directly is discharged in the atmosphere, utilize the atmosphere cooling, need not the cooling heat dissipation mechanism of acting back gas of expanding to be set, thereby improved generating efficiency of the present invention as Stirling engine.
A kind of solar energy level pressure heat hot air-flow engine electric power generating system that constitutes by double-axis tracking solar focusing mirror surface system 11, solar energy level pressure heating power converting unit 12 and generator 10, as shown in Figure 2, the focus of double-axis tracking solar focusing mirror surface system is fallen on the solar collector in the solar energy level pressure heating power converting unit.The electric energy that the present invention sends can be from the independent use of net.
Accompanying drawing 5 illustrates a kind of parallel networking type solar level pressure heat hot air-flow engine electric power generating system specific embodiments.Among Fig. 5, the focus of double-axis tracking solar focusing mirror surface system 11 is controlled on the solar collector 3 in the solar energy level pressure heating power converting unit 12 all the time, solar energy level pressure heating power converting unit 12 process level pressure Heating Cyclic modes are solar energy converting machine power, this machine power is converted to electric energy output through generator, and this is identical with system shown in Figure 2; The electric energy that generator sends is again through delivering to electrical network 14 behind boosting transformer 13 boosted voltages.
Claims (2)
1. solar energy level pressure heat hot air-flow engine electric power generating system, comprise double-axis tracking solar focusing mirror surface system, solar energy level pressure heating power converting unit or title hot air flow motor, generator, it is characterized in that: solar energy level pressure heating power converting unit is by air compressor, gas holder, solar collector, output shaft work cylinder assembly constitutes, output shaft work cylinder assembly comprises cylinder, piston, connecting rod and crank, suction port that cylinder is provided with and relief opening, the suction valve that is equipped with on the suction port, the outlet valve that is equipped with on the relief opening, air compressor, gas holder, solar collector is connected with suction port with pneumatic tube order series connection back, piston is connected with crank by connecting rod, crankshaft is connected with generator shaft, and solar energy level pressure heating power converting unit is an open loop system.
2. a kind of solar energy level pressure heat hot air-flow engine electric power generating system according to claim 1 is characterized in that: air compressor adopts piston compressor, compressor shaft and coaxial connection of crankshaft of exporting the shaft work cylinder assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101194886A CN102287347B (en) | 2011-05-04 | 2011-05-04 | Solar constant pressure heating hot airflow engine generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101194886A CN102287347B (en) | 2011-05-04 | 2011-05-04 | Solar constant pressure heating hot airflow engine generation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102287347A true CN102287347A (en) | 2011-12-21 |
| CN102287347B CN102287347B (en) | 2013-06-12 |
Family
ID=45334025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101194886A Expired - Fee Related CN102287347B (en) | 2011-05-04 | 2011-05-04 | Solar constant pressure heating hot airflow engine generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102287347B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216403A (en) * | 2013-04-07 | 2013-07-24 | 成都沃托玛腾科技有限公司 | Floor type heat-energy generator |
| CN103334796A (en) * | 2013-07-15 | 2013-10-02 | 包头市爱能控制工程有限责任公司 | Piston type electronic control distribution engine and application thereof |
| CN103470399A (en) * | 2013-09-25 | 2013-12-25 | 王立涛 | Volumetric heat engine |
| CN103821679A (en) * | 2014-03-10 | 2014-05-28 | 包头市爱能控制工程有限责任公司 | Solar disc-type air turbine power generation system |
| CN106452017A (en) * | 2016-11-17 | 2017-02-22 | 广西大学 | Switching power supply system capable of recovering heat |
| CN106505833A (en) * | 2016-11-17 | 2017-03-15 | 广西大学 | A switching power supply for power generation device |
| CN108457822A (en) * | 2018-02-26 | 2018-08-28 | 华南理工大学 | A kind of unmanned boat power plant using solar thermal energy |
| CN111022272A (en) * | 2019-12-25 | 2020-04-17 | 义乌初晨新能源科技有限公司 | Novel solar generator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775293B (en) * | 2014-01-21 | 2016-04-13 | 侯继奎 | Solar energy temperature-difference engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4896507A (en) * | 1988-11-28 | 1990-01-30 | Sundstrand Corporation | Solar power system |
| US4945731A (en) * | 1988-12-12 | 1990-08-07 | Parker Robin Z | Absorbing fluid receiver for solar dynamic power generation and solar dynamic power system |
| CN1773110A (en) * | 2005-11-11 | 2006-05-17 | 丁桦 | Compression air energy-storing apparatus and application thereof |
| CN1991155A (en) * | 2005-12-29 | 2007-07-04 | 陈茂盛 | Hot-air engine device and its manufacturing method |
| CN201507401U (en) * | 2009-08-10 | 2010-06-16 | 青岛敏深风电科技有限公司 | Steam generator for solar electric power generation |
| CN201739107U (en) * | 2010-08-06 | 2011-02-09 | 王智勇 | Disc type solar energy-thermomotor thermal power generation device |
-
2011
- 2011-05-04 CN CN2011101194886A patent/CN102287347B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4896507A (en) * | 1988-11-28 | 1990-01-30 | Sundstrand Corporation | Solar power system |
| US4945731A (en) * | 1988-12-12 | 1990-08-07 | Parker Robin Z | Absorbing fluid receiver for solar dynamic power generation and solar dynamic power system |
| CN1773110A (en) * | 2005-11-11 | 2006-05-17 | 丁桦 | Compression air energy-storing apparatus and application thereof |
| CN1991155A (en) * | 2005-12-29 | 2007-07-04 | 陈茂盛 | Hot-air engine device and its manufacturing method |
| CN201507401U (en) * | 2009-08-10 | 2010-06-16 | 青岛敏深风电科技有限公司 | Steam generator for solar electric power generation |
| CN201739107U (en) * | 2010-08-06 | 2011-02-09 | 王智勇 | Disc type solar energy-thermomotor thermal power generation device |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216403A (en) * | 2013-04-07 | 2013-07-24 | 成都沃托玛腾科技有限公司 | Floor type heat-energy generator |
| CN103216403B (en) * | 2013-04-07 | 2014-12-17 | 成都沃托玛腾科技有限公司 | Floor type heat-energy generator |
| CN103334796A (en) * | 2013-07-15 | 2013-10-02 | 包头市爱能控制工程有限责任公司 | Piston type electronic control distribution engine and application thereof |
| CN103334796B (en) * | 2013-07-15 | 2016-06-29 | 内蒙古科技大学 | Piston type electronic control distribution engine and application thereof |
| CN103470399A (en) * | 2013-09-25 | 2013-12-25 | 王立涛 | Volumetric heat engine |
| CN103821679A (en) * | 2014-03-10 | 2014-05-28 | 包头市爱能控制工程有限责任公司 | Solar disc-type air turbine power generation system |
| CN106452017A (en) * | 2016-11-17 | 2017-02-22 | 广西大学 | Switching power supply system capable of recovering heat |
| CN106505833A (en) * | 2016-11-17 | 2017-03-15 | 广西大学 | A switching power supply for power generation device |
| CN106505833B (en) * | 2016-11-17 | 2020-01-07 | 深圳市贵锦科技有限公司 | Switch power supply for power generation device |
| CN106452017B (en) * | 2016-11-17 | 2020-01-17 | 柳州雷亿设备有限公司 | Switch power supply system capable of recovering heat |
| CN108457822A (en) * | 2018-02-26 | 2018-08-28 | 华南理工大学 | A kind of unmanned boat power plant using solar thermal energy |
| CN108457822B (en) * | 2018-02-26 | 2023-09-26 | 华南理工大学 | An unmanned ship power device using solar thermal energy |
| CN111022272A (en) * | 2019-12-25 | 2020-04-17 | 义乌初晨新能源科技有限公司 | Novel solar generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102287347B (en) | 2013-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102287347B (en) | Solar constant pressure heating hot airflow engine generation system | |
| CN103912405B (en) | A kind of parallel motion thermal power machine and work method thereof | |
| CN101581286A (en) | Solar energy stirling engine device | |
| WO2021129424A1 (en) | Combined circulation system of micro gas turbine, vehicle, and charging system | |
| CN105840342A (en) | Tower type concentrating solar Stirling power generation system | |
| CN105804958A (en) | Slot type spotlight solar energy stirling power generation system | |
| CN103912404B (en) | A parallel motion high and low pressure power equipment and its application | |
| CN203717159U (en) | External-heating engine | |
| CN202082003U (en) | Stirling low-temperature high-efficiency generating set | |
| CN203892043U (en) | Parallel-motion negative pressure power unit | |
| CN203892016U (en) | Star negative pressure power device | |
| CN103912403B (en) | Star-type high-low pressure power machine and work-doing method of star-type high-low pressure power machine | |
| CN103925111B (en) | A kind of parallel motion high low pressure power machine and application thereof | |
| CN203892045U (en) | In-line negative-pressure power equipment | |
| CN203892056U (en) | Parallel-motion high-low pressure power unit | |
| CN115773164B (en) | An isothermal compressed air efficiency energy storage system and method | |
| CN203892058U (en) | In-line high-low-pressure power machine | |
| Chekir et al. | Small-scale solar stirling engine generator | |
| CN203892059U (en) | In-line high-low-pressure power equipment | |
| CN103925108A (en) | Star-shaped heat energy power device and working method thereof | |
| CN203892053U (en) | Parallel-motion heat energy power machine | |
| CN103912326B (en) | Star-type high-low pressure power device and work-doing method of star-type high-low pressure power device | |
| CN203892052U (en) | Star heat energy power device | |
| CN103939233B (en) | Inline type high and low pressure power equipment and acting method thereof | |
| CN203892055U (en) | Parallel-motion high-low pressure power machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20130612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |