CN102720582A - Compressor and turbine homo-mechanism regulating mechanism - Google Patents
Compressor and turbine homo-mechanism regulating mechanism Download PDFInfo
- Publication number
- CN102720582A CN102720582A CN2012101897335A CN201210189733A CN102720582A CN 102720582 A CN102720582 A CN 102720582A CN 2012101897335 A CN2012101897335 A CN 2012101897335A CN 201210189733 A CN201210189733 A CN 201210189733A CN 102720582 A CN102720582 A CN 102720582A
- Authority
- CN
- China
- Prior art keywords
- connecting tube
- cavity volume
- pipe
- turbine
- air inlet
- 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
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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A compressor and turbine homo-mechanism regulating mechanism in the technical field of internal combustion engines comprises a compressor, a turbine, an engine, connecting pipes, a containing cavity, a moving part, penetrating pipes and an elastic part. Both the first penetrating pipe and the second penetrating pipe penetrate an upper wall and a lower wall of the moving part. A left wall of the moving part is connected with a left wall of the containing cavity through the elastic part. During operation of the engine, the moving part can move left and right in the containing cavity. At low operating speed, left pressure of the moving part is low, the moving part moves to the left, the first connecting pipe and the third connecting pipe are communicated with each other, air intake of the compressor increases relatively, and the compressor barely surges. At high operating speed, left pressure of the moving part is high, the moving part moves to the right, the fifth connecting pipe and the sixth connecting pipe are communicated with each other, air intake of the engine decreases relatively, and detonation pressure of cylinders lowers. The compressor and turbine homo-mechanism regulating mechanism is reasonable in design, simple in structure and applicable to turbocharging systems of engines.
Description
Technical field
What the present invention relates to is a kind of air inlet system and exhaust system of field of internal combustion engine, and particularly supercharged engine gas compressor and turbine are with mechanism's regulating system.
Background technique
Along with development of modern society, people require increasingly high to the power character and the Economy of motor.Under the certain situation of discharge capacity, want to improve the output power of motor, effective method just provides more fuel and burns.Provide more fuel to be easy to accomplish through oil nozzle to cylinder, yet the air quantity that is complementary with the fuel quantity that increases will be provided simultaneously, but do not accomplish so easily; Fuel burns under the prerequisite of air quantity deficiency, and firing effect is relatively poor.Certain when fuel injection quantity, when cylinder intake air quantity was big, then burning was better, and oil consumption is lower with discharging.The degree of vacuum that traditional naturally aspirated engine forms in cylinder when relying on piston to move downward fully sucks air, and the air that this traditional mode is difficult to q.s is provided is to support the perfect combustion of fuel.Therefore, the burning that is intended for motor provides enough air, makes the power character and the better economy of motor, and turbocharging technology is being played the part of very important role.But existing turbo charge system all can not be taken into account the low speed operating mode and the high-speed working condition of motor preferably.
Retrieval through to the existing technology document is found; Chinese patent ZL200410050996.3; Patent name: the variable modular pulse converter supercharging device of a kind of turbo-charged diesel; This patented technology provides the device of the shared volume continuous variable of exhaust in a kind of outlet pipe, can take into account the high-speed working condition and the low speed operating mode of motor preferably; But the variation of exhaust institute volume is to realize through moving up and down of movement rod in its outlet pipe; This just needs to increase the special control mechanism of a cover and controls moving of movement rod; Thereby the more complicated that the pressurization system structure is become, and the sealing of its exhaust piping is also relatively poor under high-temperature condition.
Summary of the invention
The present invention is directed to the deficiency of above-mentioned existing technology, provide a kind of gas compressor and turbine, can take into account the high-speed working condition and the low speed operating mode of motor preferably with mechanism's regulating system.
The present invention realizes through following technological scheme; The present invention includes: compressor air inlet machine pipe, gas compressor, engine air inlet tube, coupling shaft, engine exhaust pipe, turbine, turbine steam outlet pipe, motor, first connecting tube, second connecting tube, the 3rd connecting tube, the 4th connecting tube, the 5th connecting tube, the 6th connecting tube, the 7th connecting tube, cavity volume, cavity volume upper wall surface, cavity volume lower wall surface, cavity volume left side wall, the right wall of cavity volume, cavity volume front face, cavity volume rear surface, moving body, first run through pipe, second and run through pipe, elastic member and the 8th connecting tube; Gas compressor links to each other through coupling shaft is coaxial with turbine; The air inlet/outlet of gas compressor is connected with the air outlet of compressor air inlet machine pipe, the suction port of engine air inlet tube respectively; The air inlet/outlet of turbine is connected with the air outlet of engine exhaust pipe, the suction port of turbine steam outlet pipe respectively; The air inlet/outlet of motor is connected with the air outlet of engine air inlet tube, the suction port of engine exhaust pipe respectively; The cross section of cavity volume is a rectangular; Cavity volume upper wall surface, cavity volume lower wall surface, cavity volume left side wall, cavity volume right wall, cavity volume front face, the cavity volume rear surface is fixed is one; Contact in the moving body mounting volume chamber and with the internal face sealing of cavity volume, the two ends of first connecting tube are connected with engine air inlet tube, cavity volume lower wall surface respectively, and an end of second connecting tube is connected with the cavity volume lower wall surface; The other end of second connecting tube is connected with an end of the 8th connecting tube; The other end of the 8th connecting tube is connected with engine exhaust pipe, and an end of the 3rd connecting tube is connected with the cavity volume upper wall surface, and the other end of the 3rd connecting tube is connected with an end of the 4th connecting tube; The other end of the 4th connecting tube is connected with the compressor air inlet machine pipe; One end of the 5th connecting tube is connected with the cavity volume lower wall surface, and the other end of the 5th connecting tube is connected with an end of the 7th connecting tube, and the other end of the 7th connecting tube is connected with engine exhaust pipe; One end of the 6th connecting tube is connected with the cavity volume upper wall surface; The other end of the 6th connecting tube leads to atmosphere, and first runs through pipe and second runs through two walls up and down that Guan Jun runs through moving body, and the left wall of moving body is connected with cavity volume left side wall through elastic member.
Further; In the present invention; Elastic member is a spring, and first connecting tube, the 3rd connecting tube, first run through pipe, the 5th connecting tube, the 6th connecting tube, second and run through that pipe is straight pipe and internal diameter is identical, the dead in line of the axis of first connecting tube and the 3rd connecting tube; The axis, second that the dead in line of the axis of the 5th connecting tube and the 6th connecting tube, the axis of first connecting tube, first run through pipe run through pipe axis, the 5th connecting tube axis all at grade.
In working procedure of the present invention, moving body can be in cavity volume move left and right, an end of the 6th connecting tube leads to atmosphere.In the low speed operating mode; The cavity volume internal pressure in moving body left side is lower, and under the effect of elastic member, moving body is moved to the left; First connecting tube and the 3rd connecting tube are connected; The 5th connecting tube cuts off with the 6th connecting tube mutually, thereby the air inflow of gas compressor is increased relatively, and gas compressor is not breathed heavily shake; At high-speed working condition, the cavity volume internal pressure in moving body left side is higher, and moving body moves right and the tensile elasticity parts; First connecting tube is cut off with the 3rd connecting tube mutually; The 5th connecting tube and the 6th connecting tube are connected, and some flows into atmosphere the exhaust behind the motor, and the acting ability of turbine weakens; Thereby the air inflow of motor is reduced relatively, and each cylinder detonation pressure reduces.
Compared with prior art, the present invention has following beneficial effect: the present invention is when the low speed operating mode, and the air inflow of gas compressor increases relatively, and gas compressor is not breathed heavily shake; When high-speed working condition, the air inflow of motor reduces relatively, and each cylinder detonation pressure is lower; And the volume cavity temperature is lower, and the sealing problem between shifting board and the cavity volume also solves easily.
Description of drawings
Fig. 1 is gas compressor of the present invention and the turbine structural representation with mechanism's regulating system;
Fig. 2 is the structural representation of A-A section among Fig. 1;
Wherein: 1, compressor air inlet machine pipe, 2, gas compressor, 3, engine air inlet tube, 4, coupling shaft, 5, engine exhaust pipe, 6, turbine; 7, turbine steam outlet pipe, 8, motor, 9, first connecting tube, 10, second connecting tube, the 11, the 3rd connecting tube, the 12, the 4th connecting tube; 13, the 5th connecting tube, the 14, the 6th connecting tube, the 15, the 7th connecting tube, 16, cavity volume, 17, the cavity volume upper wall surface; 18, cavity volume lower wall surface, 19, cavity volume left side wall, 20, the right wall of cavity volume, 21, the cavity volume front face, 22, the cavity volume rear surface; 23, moving body, 24, first runs through pipe, and 25, second runs through pipe, and 26, elastic member, the 27, the 8th connecting tube.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, present embodiment is a prerequisite with technological scheme of the present invention, provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As depicted in figs. 1 and 2; The present invention includes: comprise that compressor air inlet machine pipe 1, gas compressor 2, engine air inlet tube 3, coupling shaft 4, engine exhaust pipe 5, turbine 6, turbine steam outlet pipe 7, motor 8, first connecting tube 9, second connecting tube 10, the 3rd connecting tube 11, the 4th connecting tube 12, the 5th connecting tube 13, the 6th connecting tube 14, the 7th connecting tube 15, cavity volume 16, cavity volume upper wall surface 17, cavity volume lower wall surface 18, cavity volume left side wall 19, the right wall 20 of cavity volume, cavity volume front face 21, cavity volume rear surface 22, moving body 23, first run through pipe 24, second and run through pipe 25, elastic member 26 and the 8th connecting tube 27; Gas compressor 2 and turbine 6 are through 4 coaxial linking to each other of coupling shaft; The air inlet/outlet of gas compressor 2 is connected with the air outlet of compressor air inlet machine pipe 1, the suction port of engine air inlet tube 3 respectively; The air inlet/outlet of turbine 6 is connected with the air outlet of engine exhaust pipe 5, the suction port of turbine steam outlet pipe 7 respectively; The air inlet/outlet of motor 8 is connected with the air outlet of engine air inlet tube 3, the suction port of engine exhaust pipe 5 respectively; The cross section of cavity volume 12 is a rectangular; Cavity volume upper wall surface 13, cavity volume lower wall surface 14, cavity volume left side wall 15, the right wall 16 of cavity volume, cavity volume front face 17, cavity volume rear surface 18 are fixed to be one; Contact in the moving body 19 mounting volume chambeies 12 and with the internal face sealing of cavity volume 12; The two ends of first connecting tube 9 are connected with engine air inlet tube 3, cavity volume lower wall surface 18 respectively, and an end of second connecting tube 10 is connected with cavity volume lower wall surface 18, and the other end of second connecting tube 10 is connected with an end of the 8th connecting tube 27; The other end of the 8th connecting tube 27 is connected with engine exhaust pipe 5; One end of the 3rd connecting tube 11 is connected with cavity volume upper wall surface 17, and the other end of the 3rd connecting tube 11 is connected with an end of the 4th connecting tube 12, and the other end of the 4th connecting tube 12 is connected with compressor air inlet machine pipe 1; One end of the 5th connecting tube 13 is connected with cavity volume lower wall surface 18; The other end of the 5th connecting tube 13 is connected with an end of the 7th connecting tube 15, and the other end of the 7th connecting tube 15 is connected with engine exhaust pipe 5, and an end of the 6th connecting tube 14 is connected with cavity volume upper wall surface 17; The other end of the 6th connecting tube 14 leads to atmosphere; First runs through pipe 24 and second runs through two walls up and down that pipe 25 all runs through moving body 23, and the left wall of moving body 23 is connected with cavity volume left side wall 19 through elastic member 24, and elastic member 26 is a spring; Said first connecting tube 9, the 3rd connecting tube 11, first run through pipe the 24, the 5th connecting tube 13, the 6th connecting tube 14, second and run through that pipe 25 is straight pipe and internal diameter is identical; The dead in line of the axis of first connecting tube 9 and the 3rd connecting tube 11, the dead in line of the axis of the 5th connecting tube 13 and the 6th connecting tube 14, the axis that the axis of first connecting tube 9, first runs through axis that pipe 24 axis, second runs through pipe 25, the 5th connecting tube 13 is all at grade.
In working procedure of the present invention, moving body 23 can be in cavity volume 16 move left and right, an end of the 6th connecting tube 14 leads to atmosphere.In the low speed operating mode; The cavity volume internal pressure in moving body 23 left sides is lower, and under the effect of elastic member 26, moving body 23 is moved to the left; First connecting tube 9 and the 3rd connecting tube 11 are connected; The 5th connecting tube 13 cuts off with the 6th connecting tube 14 mutually, thereby the air inflow of gas compressor 2 is increased relatively, and gas compressor 2 is not breathed heavily shake; At high-speed working condition, the cavity volume internal pressure in moving body 23 left sides is higher, and moving body 23 moves right and tensile elasticity parts 26; First connecting tube 9 is cut off with the 3rd connecting tube 11 mutually; The 5th connecting tube 13 and the 6th connecting tube 14 are connected, and some flows into atmosphere the exhaust behind the motor, and the acting ability of turbine 6 weakens; Thereby the air inflow of motor 8 is reduced relatively, and each cylinder detonation pressure reduces.Therefore, the present invention can take into account the low speed operating mode and the high-speed working condition of motor preferably.
Claims (2)
1. gas compressor and turbine are with mechanism's regulating system; Comprise compressor air inlet machine pipe (1), gas compressor (2), engine air inlet tube (3), coupling shaft (4), engine exhaust pipe (5), turbine (6), turbine steam outlet pipe (7) and motor (8); Gas compressor (2) and turbine (6) are through coaxial linking to each other of coupling shaft (4); The air inlet/outlet of gas compressor (2) is connected with the air outlet of compressor air inlet machine pipe (1), the suction port of engine air inlet tube (3) respectively; The air inlet/outlet of turbine (6) is connected with the air outlet of engine exhaust pipe (5), the suction port of turbine steam outlet pipe (7) respectively; The air inlet/outlet of motor (8) is connected with the air outlet of engine air inlet tube (3), the suction port of engine exhaust pipe (5) respectively; It is characterized in that also comprising that first connecting tube (9), second connecting tube (10), the 3rd connecting tube (11), the 4th connecting tube (12), the 5th connecting tube (13), the 6th connecting tube (14), the 7th connecting tube (15), cavity volume (16), cavity volume upper wall surface (17), cavity volume lower wall surface (18), cavity volume left side wall (19), the right wall (20) of cavity volume, cavity volume front face (21), cavity volume rear surface (22), moving body (23), first run through pipe (24), second and run through pipe (25), elastic member (26) and the 8th connecting tube (27); The cross section of cavity volume (16) is a rectangular; Cavity volume upper wall surface (17), cavity volume lower wall surface (18), cavity volume left side wall (19), cavity volume right wall (20), cavity volume front face (21), cavity volume rear surface (22) is fixed is one; Contact in moving body (23) the mounting volume chamber (16) and with the internal face sealing of cavity volume (16); The two ends of first connecting tube (9) are connected with engine air inlet tube (3), cavity volume lower wall surface (18) respectively; One end of second connecting tube (10) is connected with cavity volume lower wall surface (18); The other end of second connecting tube (10) is connected with an end of the 8th connecting tube (27); The other end of the 8th connecting tube (27) is connected with engine exhaust pipe (5), and an end of the 3rd connecting tube (11) is connected with cavity volume upper wall surface (17), and the other end of the 3rd connecting tube (11) is connected with an end of the 4th connecting tube (12); The other end of the 4th connecting tube (12) is connected with compressor air inlet machine pipe (1); One end of the 5th connecting tube (13) is connected with cavity volume lower wall surface (18), and the other end of the 5th connecting tube (13) is connected with an end of the 7th connecting tube (15), and the other end of the 7th connecting tube (15) is connected with engine exhaust pipe (5); One end of the 6th connecting tube (14) is connected with cavity volume upper wall surface (17); The other end of the 6th connecting tube (14) leads to atmosphere, and first runs through pipe (24) and second runs through two walls up and down that pipe (25) all runs through moving body (23), and the left wall of moving body (23) is connected with cavity volume left side wall (19) through elastic member (24).
2. gas compressor according to claim 1 and turbine are with mechanism's regulating system; It is characterized in that said elastic member (26) is a spring; Said first connecting tube (9), the 3rd connecting tube (11), first run through pipe (24), the 5th connecting tube (13), the 6th connecting tube (14), second and run through that pipe (25) is straight pipe and internal diameter is identical; The dead in line of the axis of first connecting tube (9) and the 3rd connecting tube (11); The axis, second that the dead in line of the axis of the 5th connecting tube (13) and the 6th connecting tube (14), the axis of first connecting tube (9), first run through pipe (24) run through pipe (25) axis, the 5th connecting tube (13) axis all at grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210189733.5A CN102720582B (en) | 2012-06-11 | 2012-06-11 | Compressor and turbine homo-mechanism regulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210189733.5A CN102720582B (en) | 2012-06-11 | 2012-06-11 | Compressor and turbine homo-mechanism regulating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102720582A true CN102720582A (en) | 2012-10-10 |
| CN102720582B CN102720582B (en) | 2014-06-18 |
Family
ID=46946425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210189733.5A Expired - Fee Related CN102720582B (en) | 2012-06-11 | 2012-06-11 | Compressor and turbine homo-mechanism regulating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720582B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966399A (en) * | 2012-11-29 | 2013-03-13 | 上海交通大学 | Tappet rod device with transverse moving type moving body |
| CN102966396A (en) * | 2012-11-06 | 2013-03-13 | 上海交通大学 | Dual valve height pneumatic control system |
| CN108087110A (en) * | 2017-11-22 | 2018-05-29 | 中国北方发动机研究所(天津) | A kind of Two Stage Turbocharging System turbine by-pass self-adaptive regulating |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6012289A (en) * | 1997-11-19 | 2000-01-11 | Caterpillar Inc. | Apparatus and method for utilizing a learned wastegate control signal for controlling turbocharger operation |
| US6295814B1 (en) * | 1997-04-23 | 2001-10-02 | Daimlerchrysler Ag | Internal-combustion engine with an exhaust gas turbocharger |
| CN2924201Y (en) * | 2006-05-30 | 2007-07-18 | 宝山钢铁股份有限公司 | Automatic cutoff and pressure release plunger valve for pressure meter |
| US20080053088A1 (en) * | 2006-08-29 | 2008-03-06 | Yanakiev Ognyan N | Dual stage turbocharger control system |
| CN101403442A (en) * | 2007-12-27 | 2009-04-08 | 奇瑞汽车股份有限公司 | Valve and system used for turbosupercharger recirculation |
| US20110239997A1 (en) * | 2010-04-02 | 2011-10-06 | Ford Global Technologies, Llc | Combustion stability enhancement via internal egr control |
| CN102434269A (en) * | 2010-09-29 | 2012-05-02 | 现代自动车株式会社 | Turbocharger having anti-surge valve |
-
2012
- 2012-06-11 CN CN201210189733.5A patent/CN102720582B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6295814B1 (en) * | 1997-04-23 | 2001-10-02 | Daimlerchrysler Ag | Internal-combustion engine with an exhaust gas turbocharger |
| US6012289A (en) * | 1997-11-19 | 2000-01-11 | Caterpillar Inc. | Apparatus and method for utilizing a learned wastegate control signal for controlling turbocharger operation |
| CN2924201Y (en) * | 2006-05-30 | 2007-07-18 | 宝山钢铁股份有限公司 | Automatic cutoff and pressure release plunger valve for pressure meter |
| US20080053088A1 (en) * | 2006-08-29 | 2008-03-06 | Yanakiev Ognyan N | Dual stage turbocharger control system |
| CN101403442A (en) * | 2007-12-27 | 2009-04-08 | 奇瑞汽车股份有限公司 | Valve and system used for turbosupercharger recirculation |
| US20110239997A1 (en) * | 2010-04-02 | 2011-10-06 | Ford Global Technologies, Llc | Combustion stability enhancement via internal egr control |
| CN102434269A (en) * | 2010-09-29 | 2012-05-02 | 现代自动车株式会社 | Turbocharger having anti-surge valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966396A (en) * | 2012-11-06 | 2013-03-13 | 上海交通大学 | Dual valve height pneumatic control system |
| CN102966399A (en) * | 2012-11-29 | 2013-03-13 | 上海交通大学 | Tappet rod device with transverse moving type moving body |
| CN102966399B (en) * | 2012-11-29 | 2014-12-24 | 上海交通大学 | Tappet rod device with transverse moving type moving body |
| CN108087110A (en) * | 2017-11-22 | 2018-05-29 | 中国北方发动机研究所(天津) | A kind of Two Stage Turbocharging System turbine by-pass self-adaptive regulating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102720582B (en) | 2014-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102588076A (en) | Volume cavity regulating intake device | |
| CN102678283A (en) | Engine exhaust gas bypass device | |
| CN102588077A (en) | Engine intake system with variable-volume intake pipe | |
| CN102606279A (en) | Air inlet system with movable component in air inlet tube | |
| CN102678274A (en) | Double-penetration tubular volume cavity structure | |
| CN102678282A (en) | Regulating system with air intake and discharge combined mechanism | |
| CN102817703A (en) | Adjustment system with post-pressure of air compressor as control pressure | |
| CN102767419A (en) | Volume cavity device internally provided with spring | |
| CN102678275A (en) | Air feeding and discharging adjustment system with multiple connection pipes | |
| CN102720582B (en) | Compressor and turbine homo-mechanism regulating mechanism | |
| CN102678272A (en) | Regulating device for air intake and discharge flow of supercharger | |
| CN102817700A (en) | Parallel system of twin-turbo supercharger | |
| CN102808688A (en) | Switchable turbocharging system | |
| CN102817704A (en) | Engine system with variable effective circulation area of turbines | |
| CN102767423A (en) | Parallel gas path system with switching mechanism | |
| CN102767418B (en) | Synchronous double-moving-body moving device | |
| CN102678269A (en) | Supercharged engine air inlet pipe deflating system | |
| CN102767425B (en) | Switching device for admission passage and exhaust passage | |
| CN102606278A (en) | Air inlet device with elastic component | |
| CN102720583B (en) | Displacement cavity type homo-mechanism intake and exhaust regulating device | |
| CN102678279A (en) | Deflation type gas compressor surge regulation mechanism | |
| CN102678273A (en) | Self-matching adjusting device for air intake flow and environmental pressure | |
| CN102720581A (en) | Mechanically telescopic device with three connection pipes | |
| CN202578899U (en) | Turbine front exhaust pressure self-regulation device | |
| CN102678280A (en) | Gas compressor deflation device with through tube |
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: 20140618 Termination date: 20170611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |