CN101126451B - Double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve - Google Patents
Double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve Download PDFInfo
- Publication number
- CN101126451B CN101126451B CN 200610030153 CN200610030153A CN101126451B CN 101126451 B CN101126451 B CN 101126451B CN 200610030153 CN200610030153 CN 200610030153 CN 200610030153 A CN200610030153 A CN 200610030153A CN 101126451 B CN101126451 B CN 101126451B
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- valve
- magnetic
- displacement
- steel
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention discloses a double magnetic-push overlapping type magnetically-controlled relief valve for the gas turbine, which is technically characterized in that a primary steel magnet and a secondary steel magnet which have the same polarity and are repellent to each other are adopted to organically combine with a back-pushing steel magnet; the mutual repulsion of the primary and secondary steel magnets can open the valve, and the mutual repulsion of the back-pushing steel magnet and the secondary steel magnet can also open the valve, the two sets of steel magnets repel alternatively and repeatedly to open or close the valve; Owing to the isolated area formed by the magnetic field between the primary and the secondary steel magnets, the engine can be arranged in a completely-sealed case, and realizes the purpose of completely and reliably isolating the engine from the gas; furthermore, the part of the valve cover overlaps with the completely-sealed engine case, which shortens the total height of the valve, and meets the present market demand of 'miniaturization of the valve'; at the same time, the valve has long opening and closing travel, the pressure loss is small, the failure rate is low, and has high value of popularization.
Description
Technical field
The invention belongs to combustion gas motor valve technology field, relate in particular to the fuel gas motor relief valve door that occasions such as a kind of pipeline at flammable explosive gas, measure meter are used.
Background technique
At present, the general combustion gas motor valve of Shi Yonging, be to be whole by spool and valve body two big unit architectures, but, in the IC-card gas meter, IC-card gas meter tool shell is regarded as valve body, its port of giving vent to anger is considered as the valve body port of giving vent to anger, the independent existing example that uses spool, therefore, the performance of spool, quality have become the key technology of structure combustion gas motor valve, and the technological scheme of spool employing mainly contains usually: under the drive of motor, through spur gear tooth bar transmission or gear screw drive, promote the valve cover displacement and finish out valve and close valve events.Because the seal approach of this class formation is not enough to block fully the passage between motor and the combustion gas, so electrical spark that produces during machine operation, once contact with flammable explosive gas, very easily burn, explosive accident, the people life property safety is constituted a serious threat.Limited by the drive mechanism of such valve, it is shorter to open Valve travel, and the build-up of pressure loss ratio is bigger, again because such valve cover swing degree when action is bigger, not only air-tightness is relatively poor when closing valve, and internal leakage very easily takes place, and, cause rate of fault higher.
Summary of the invention
The objective of the invention is to, provide a kind of and can effectively overcome above-mentioned defective, two magnetic that valve driving machine and combustion gas are cut off fully push away valve of gas electric machine magnetic control safety.
For achieving the above object, the present invention adopts the valve of gas electric machine magnetic control safety of the spool technical construction of two magnetic repulsion superposed type magnetic controls, its technological scheme is, a kind of double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve, the magnet steel that the framework of its spool is mainly repelled each other by two groups of same sexes, full closed electric machine case, motor screw-drive mechanism, U type valve cover mechanism and valve body etc. are formed, and its characteristics are: a. provides two groups of actings in conjunction in main magnet steel secondary magnet steel, that the same sex is repelled each other with instead push away the power source that magnet steel is constructed to the open and close valve; B., the full closed electric machine case of one motor case and main magnetic steel displacement box structure is provided; C., the motor screw-drive mechanism of one driving main magnetic steel displacement is provided, is sealed in the totally-enclosed machine box cavity; D. the secondary magnet steel that provides is configured to U type valve cover mechanism whole, that be synchronized with the movement with the valve cover integration; E. the U type valve cover mechanism that provides can overlap with the main magnetic steel displacement case in displacement stroke.
Described one group of major and minor magnet steel has played isolation features: the magnetic field space between major and minor magnet steel forms the isolation zone, motor and screw-drive mechanism and main magnet steel are sealed in the totally-enclosed machine box cavity, fully, block passage between motor and combustion gas reliably, the work of absolute assurance motor safety, this isolation simultaneously also guarantees the action of a magnetic field between the major and minor magnet steel fully.The motor screw-drive mechanism that drives main magnetic steel displacement can be for a kind of mechanism that selects for use: motor and screw-thread drive shaft link, the main magnet steel that contains internal thread and displacement guide rail screws in screw-thread drive shaft, and the secondary guide rail of the displacement of main magnet steel is constructed screw-drive mechanism jointly, its function is: motor is a motive force, the forward and reverse rotation of motor, drive power screw rotation motion is transformed into straight reciprocating motion, main magnet steel is along the screw-thread drive shaft shift reciprocately.The U type valve cover mechanism here, U type adapter can be set secondary magnet steel, valve cover integration are configured to mechanism whole, that be synchronized with the movement, its function is: secondary magnet steel is subjected to the thrust displacement of main magnet steel magnetic field, U type valve cover mechanism synchronous shift, major and minor magnet steel loses magnetic field repulsive force, secondary magnet steel is subjected to the anti-effect that pushes away magnet steel repulsion, secondary magnet steel and the synchronous backward displacement of valve cover mechanism, resets.U type valve cover mechanism can overlap with the main magnetic steel displacement case in displacement stroke and be meant: the displacement of U type valve cover mechanism exists closes the valve motion and opens two processes of valve motion, when U type valve cover mechanism reaches and finishes out valve events through opening the valve movement travel, when being moved to out the valve final state, its U type indent position overlaps with the main magnetic steel displacement box outer wall that constitutes full closed electric machine case, or partially overlap, its superiority not only shows the framework of optimizing valve cover mechanism and full closed electric machine case, make the valve mechanism advantages of simple that more becomes, and, embody because two mechanism's portion sizes overlap, shortened the total size of two structures, reduced the total height of valve, enlarge the application area of valve, met the market demand of current manufacturing " valve miniaturization " simultaneously.The power source of open and close valve is meant: motor is a motive force, drive the displacement of main magnet steel linear reciprocation by the motor screw-drive mechanism, the main magnet steel that realization hockets loses magnetic field repulsive force to secondary magnet steel to the magnetic field repulsive force of secondary magnet steel and the anti-magnet steel that pushes away, perhaps, main magnet steel loses the magnetic field repulsive force of secondary magnet steel and the anti-magnetic field repulsive force that pushes away magnet steel to secondary magnet steel, when major and minor magnet steel repelled each other, the anti-magnet steel that pushes away lost magnetic field repulsive force to secondary magnet steel, and the magnetic field repulsive force between major and minor magnet steel realizes closing the valve motion; When major and minor magnet steel loses magnetic field repulsive force, the anti-secondary magnet steel of magnet steel repulsion that pushes away, the anti-magnetic field repulsive force that pushes away between magnet steel, secondary magnet steel realizes opening the valve motion, and the magnetic field repulsive force of two groups of magnet steel is power sources of open and close valve.Main, the magnetic intensity of secondary magnet steel not only affects mutual the action of a magnetic field power, and the displacement height of valve cover played a leading role, promptly splitting the Valve travel height plays a leading role, can be according to opening the Valve travel needs, determine " two magnet steel are scolded the spacing of stop ", the correct magnetic intensity of selecting magnet steel, described " two magnet steel are scolded the spacing of stop " is meant: valve is in and closes the valve final state, main magnet steel is in main magnetic steel displacement box cavity bottom, secondary magnet steel is apart from main magnetic steel displacement case bottom maximum value, at this moment, the action of a magnetic field power between main magnet steel and the secondary magnet steel reaches: main magnet steel is enough to overcome the anti-mutual expelling force that pushes away magnet steel to secondary magnet steel, can the secondary magnet steel interlock of repulsion U type valve cover mechanism move in the same way synchronously, realize closing valve, the residing respectively position of main magnet steel and secondary magnet steel is called " two magnet steel are scolded stop ", and is main, the obverse distance of secondary magnet steel claims " two magnet steel are scolded the spacing of stop ", and is main, magnetic field repulsive force between secondary magnet steel claims " two magnet steel magnetic field repulsive forces ".Two magnet steel magnetic field repulsive forces are big, can increase the valve cover displacement height, increase to open Valve travel, reduce pressure loss.
Owing to adopt such scheme, be not difficult to draw as drawing a conclusion: the present invention is skillfully constructed, because this valve uses one group of magnet steel, magnetic field space between the major and minor magnet steel forms the isolation zone, reliably, fully cut off interior motor of full closed electric machine case and the passage between the combustion gas, electrical spark that has produced when thoroughly having blocked machine operation and contacts fuel gas have been avoided the burning that may cause, explosion phenomenon, stop potential safety hazard, guarantee that valve uses Security and the reliability in flammable explosive gas.Simultaneously, rationally determine " two magnet steel are scolded the spacing of stop ", the correct field intensity of selecting magnet steel, can increase valve open and close stroke, reduce pressure loss to greatest extent, and the movement locus that U type valve cover mechanism displacement guide rail can the venting valve door closure, thus possess better than the flexibility of conventional motors valve, the advantage that the switch valve rate of fault is low has promotional value.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail.
Accompanying drawing 1 is the technical solution of the present invention framework;
Accompanying drawing 2 is structural representations of the present invention.
Embodiment
A kind of double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve, the magnet steel that the framework of its spool is mainly repelled each other by two groups of same sexes, full closed electric machine case, motor screw-drive mechanism, U type valve cover mechanism and valve body etc. are formed, and its characteristics are: a. provides two groups of actings in conjunction in main magnet steel secondary magnet steel, that the same sex is repelled each other with instead push away the power source that magnet steel is constructed to the open and close valve; B., the full closed electric machine case of one motor case and main magnetic steel displacement box structure is provided; C., the motor screw-drive mechanism of one driving main magnetic steel displacement is provided, is sealed in the totally-enclosed machine box cavity; D. the secondary magnet steel that provides is configured to U type valve cover mechanism whole, that be synchronized with the movement with the valve cover integration; E. the U type valve cover mechanism that provides can overlap with the main magnetic steel displacement case in displacement stroke.The technological scheme framework is as shown in Figure 1: valve is in out the valve final state, and two groups of actings in conjunction are in main magnet steel 1 secondary magnet steel 2, that the same sex is repelled each other and instead push away the power source that magnet steel 3 is constructed to the open and close valve; The full closed electric machine case 4 of motor case and main magnetic steel displacement box structure, the built-in main magnet steel that contains internal thread and displacement guide rail screws in screw-thread drive shaft, motor and screw-thread drive shaft and links, and the motor screw-drive mechanism 5 of the common structure of the secondary guide rail of the displacement of main magnet steel; U type adapter is set valve cover, secondary magnet steel are integrated the U type valve cover mechanism 6 that structure is synchronized with the movement, anti-magnet steel 3 fixed in position that push away of annular are in bottom, valve body outlet side.Its movement step is as follows: when motor rotary drive motor screw-drive mechanism is converted to main magnet steel to bottom offset, and promote secondary magnet steel interlock U type valve cover mechanism synchronously to bottom offset, be in the position of " two magnet steel are scolded stop " respectively to the major-minor magnet steel, valve cover seals up the valve body port 7 of giving vent to anger, realize closing valve, simultaneously, the anti-magnet steel 3 that pushes away loses magnetic field repulsive force to secondary magnet steel 2; When motor counter-rotating, the drive motor screw-drive mechanism be converted to main magnet steel 1 to top offset, reset, lose magnetic field repulsive force between the major and minor magnet steel, counter push away the secondary magnet steel of magnet steel 3 repulsions 2 interlock U type valve cover mechanisms 6 synchronously to top offset, reset, realize opening valve.So go round and begin again, the magnetic field repulsive force alternating action of two groups of magnet steel is finished valve open and close valve function.As shown in Figure 1, (1) motor is fixedly mounted on the positioning plate, can be provided with the positioning hole combination confession installation screw-thread drive shaft special use that positioning hole and main magnetic steel displacement box cavity bottom is provided with on the positioning plate; (2) motor and screw-thread drive shaft link, and can be directly to link, and also can link through speed change gear, to increase the screw-drive mechanism moment of torsion; (3) a kind of displacement guide rail of easy main magnet steel is to be provided with groove or projection at main magnet steel outer wall, and its shape can be arc, rectangle, columniform; (4) the secondary guide rail of the displacement of described main magnet steel must be complementary, help the displacement of main magnet steel linear reciprocation with the displacement guide rail of main magnet steel, the secondary guide rail of the displacement of main magnet steel can be arranged on the main magnetic steel displacement chamber interior wall and be projection or groove shape, also can be standalone configuration, its shape can be leg-of-mutton, arc, rectangle, columniform; (5) positioning plate can be provided with the connection pedestal that the extension position becomes motor case, main magnetic steel displacement box structure full closed electric machine case; (6) the anti-magnet steel that pushes away also adopts annular magnetic steel to be placed in bottom, valve body outlet side; (7) system connector is that valve body becomes whole connection pedestal with spool construction, can be arranged on the epitaxial part that positioning plate prolongs; (8) U type adapter inwall matches mutually with the main magnetic steel displacement box outer wall, constructs the displacement guide rail of U type valve cover mechanism jointly, to reduce the swing degree of U-shaped valve cover mechanism, venting valve door closure movement locus.
2 couples of a kind of double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve embodiments of the present invention are described in detail below in conjunction with accompanying drawing, see shown in the accompanying drawing 2: valve is in out the valve final state, in the present embodiment, main magnet steel 1 repels each other with secondary magnet steel 2 same polarities, be provided with the positioning plate of positioning hole, the connection pedestal of full closed electric machine case and the system connector 13 that system connector is combined into integral body, motor case 8, main magnetic steel displacement case 19 are configured to full closed electric machine case; For increasing screw-thread drive shaft 10 moments of torsion, be provided with speed change gear group and the motor 9 of generator shaft gear 12 and spur gear 11 structures and contain internal thread and the main magnet steel screw-in screw-thread drive shaft 10 of displacement guide rail links, the main magnetic steel displacement chamber interior wall is provided with the secondary guide rail 20 common structure motor screw-drive mechanisms of displacement of main magnet steel, is sealed in the full closed electric machine case; Be provided with U type adapter 15, secondary magnet steel 2 is placed in its intracavity bottom, valve cover 16 is placed in its outer bottom and constructs U type valve cover mechanism jointly; Main magnetic steel displacement case 19 outer walls and U type adapter 15 inwalls are constructed the displacement guide rail of U type valve cover mechanism jointly; Valve body 21 is fixedly mounted on system connector 13 bottoms; Valve inlet, valve export, the valve port 7 of giving vent to anger all links with valve body 21 integral body; Motor case, main magnetic steel displacement case and system connector binding site are respectively with 17,18 sealings of sealing gasket circle; The anti-magnet steel 3 that pushes away of annular that repels each other with the secondary magnet steel same sex is installed in bottom, valve outlet side.Working principle of the present invention is below described: when motor 9 is connected the power supply rotation, be suitable moment of torsion and rotating speed by generator shaft gear 12 and spur gear 11 speed changes, drive screw-thread drive shaft 10 rotations, and act on main magnet steel 1, be subjected to the leading role of the displacement guide rail and the secondary guide rail 20 of displacement of main magnet steel, along the downward moving linearly of screw-thread drive shaft 10 axis and overcome the anti-repulsion that pushes away 3 pairs of secondary magnet steel 2 of magnet steel, promote secondary magnet steel 2 and be moved to " two magnet steel are scolded stop " synchronously downwards with U type valve cover mechanism, valve cover 16 seals up the valve port 7 of giving vent to anger, finish the pass valve, the simultaneously anti-magnet steel 3 that pushes away loses thrust to secondary magnet steel 2; Otherwise, when motor 9 is connected the reversal of power rotation, be suitable moment of torsion and rotating speed by generator shaft gear 12 and spur gear 11 speed changes, drive screw-thread drive shaft 10 rotations, and act on main magnet steel 1, be subjected to the leading role of the displacement guide rail and the secondary guide rail 20 of displacement of main magnet steel, make progress moving linearly to screw-thread drive shaft 10 tops along screw-thread drive shaft 10 axis, main magnet steel 1 weakens until the repulsion that loses secondary magnet steel 2, the anti-secondary magnet steel of the magnet steel 3 repulsions 2 interlock U type valve cover mechanisms that push away finish out valve to top offset synchronously, simultaneously secondary magnet steel 2 synchronous resets.And so forth, realized the function of valve open and close valves.Present embodiment is owing to provide two groups of magnet steel, and the magnetic field space between major and minor magnet steel forms the isolation zone, blocks built-in motor of full closed electric machine case and the passage between the combustion gas fully, reliably, stops potential safety hazard; Owing to suitably selected main magnet steel, secondary magnet steel and the anti-magnetic intensity that pushes away magnet steel, increase valve and opened Valve travel again, effectively reduced pressure loss; And, be provided with the secondary guide rail of the displacement guide rail of U type valve cover mechanism and displacement, under its common leading role, stablized the movement locus of valve cover, reduce its swing degree, therefore, strengthened valve tightness and flexibility, reduced internal leakage and rate of fault.
Claims (8)
1. double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve, the magnet steel that the framework of its spool is mainly repelled each other by two groups of same sexes, full closed electric machine case, motor screw-drive mechanism, U type valve cover mechanism and valve body are formed, and it is characterized in that: a. provides two groups of actings in conjunction in main magnet steel secondary magnet steel, that the same sex is repelled each other with instead push away the power source that magnet steel is constructed to the open and close valve; B., the full closed electric machine case of one motor case and main magnetic steel displacement box structure is provided; C., the motor screw-drive mechanism of one driving main magnetic steel displacement is provided, is sealed in the totally-enclosed machine box cavity; D. the secondary magnet steel that provides is configured to U type valve cover mechanism whole, that be synchronized with the movement with the valve cover integration; E. the U type valve cover mechanism that provides can overlap with the main magnetic steel displacement case in displacement stroke.
2. a kind of double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve as claimed in claim 1 is characterized in that: described motor is installed on the positioning plate, and positioning hole is set on the positioning plate, at positioning plate extension position structure full closed electric machine case pedestal.
3. a kind of double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve as claimed in claim 1, it is characterized in that: described motor screw-drive mechanism is: motor and screw-thread drive shaft link, the main magnet steel that contains internal thread and displacement guide rail screws in screw-thread drive shaft, and constructs screw-drive mechanism jointly with the secondary guide rail of the displacement of main magnet steel.
4. a kind of double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve as claimed in claim 1 is characterized in that: described U type valve cover mechanism is provided with U type adapter and secondary magnet steel, valve cover are integrated is configured to mechanism whole, that be synchronized with the movement.
5. a kind of double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve as claimed in claim 1 is characterized in that: described U type valve cover mechanism inwall matches mutually with the outer wall of main magnetic steel displacement case, constructs the displacement guide rail of U type valve cover mechanism jointly.
6. a kind of double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve as claimed in claim 2 is characterized in that: described positioning plate is that valve body becomes whole connection pedestal with spool construction at the epitaxial part of its prolongation, forms system connector.
7. a kind of double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve as claimed in claim 3 is characterized in that: the displacement guide rail of described main magnet steel, be matrix, and be placed in main magnet steel outer wall.
8. a kind of double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve as claimed in claim 3 is characterized in that: the secondary guide rail of the displacement of described main magnet steel, be projection, and the displacement guide rail that is arranged on main magnetic steel displacement chamber interior wall and main magnet steel is complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610030153 CN101126451B (en) | 2006-08-17 | 2006-08-17 | Double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610030153 CN101126451B (en) | 2006-08-17 | 2006-08-17 | Double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101126451A CN101126451A (en) | 2008-02-20 |
| CN101126451B true CN101126451B (en) | 2011-05-18 |
Family
ID=39094545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610030153 Expired - Fee Related CN101126451B (en) | 2006-08-17 | 2006-08-17 | Double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101126451B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2305536Y (en) * | 1997-06-12 | 1999-01-27 | 石家庄市通信发展总公司 | Built-in gas valve for transfering mechanical power by rotary magnetic field |
| CN2337379Y (en) * | 1998-04-15 | 1999-09-08 | 重庆先锋电子有限公司 | Micro-consumption electric valve |
| US6082703A (en) * | 1997-08-08 | 2000-07-04 | Soema-S.R.L. | Hydraulic valve controlled by a photoelectric cell and operated by an electric motor |
| CN2494463Y (en) * | 2001-06-21 | 2002-06-05 | 绍兴水联智能仪表有限公司 | Micropower dissipation electric solenoid-operated valve |
-
2006
- 2006-08-17 CN CN 200610030153 patent/CN101126451B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2305536Y (en) * | 1997-06-12 | 1999-01-27 | 石家庄市通信发展总公司 | Built-in gas valve for transfering mechanical power by rotary magnetic field |
| US6082703A (en) * | 1997-08-08 | 2000-07-04 | Soema-S.R.L. | Hydraulic valve controlled by a photoelectric cell and operated by an electric motor |
| CN2337379Y (en) * | 1998-04-15 | 1999-09-08 | 重庆先锋电子有限公司 | Micro-consumption electric valve |
| CN2494463Y (en) * | 2001-06-21 | 2002-06-05 | 绍兴水联智能仪表有限公司 | Micropower dissipation electric solenoid-operated valve |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-119528A 1997.05.06 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101126451A (en) | 2008-02-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100430633C (en) | Four-way reversing valve | |
| CN104864124B (en) | Oil gas moment switching device and its working method | |
| CN105465406B (en) | A kind of first magnetic conduction self-locking bistable state engine control valve door of gas control | |
| CN100414153C (en) | Spring relaxation opening valve coincide type fuel gas electric machine magnetic control safety valve | |
| JP2006519330A (en) | Rotary piston device having an elliptical rotary piston guided in an elliptical chamber | |
| CN101126451B (en) | Double magnetic repulsion superposed type fuel gas motor magnetic-control relief valve | |
| CN102110954A (en) | High-capacity upper and lower isolated solid switch cabinet | |
| CN101126452B (en) | Double magnet attraction superposed type fuel gas motor magnetic-control relief valve | |
| CN101122342B (en) | Spring magnetic control superposed type fuel gas motor relief valve | |
| CA2871326A1 (en) | Rotative valves for reciprocating compressors and related methods | |
| CN202971986U (en) | Large-caliber fuel gas double-door ball valve | |
| CN111503361B (en) | Anti-scouring ball valve | |
| JP4832580B1 (en) | Reciprocating 1-cycle engine | |
| CN101210621A (en) | Spring relaxation open valve suspension combustion gas motor magnetic control safety valve | |
| KR20010015026A (en) | Change over device | |
| CN101210623A (en) | Double magnetic repulsion suspension combustion gas motor magnetic control safety valve | |
| CN105952956A (en) | Double-acting poking fork type pneumatic actuation mechanism | |
| CN101210620A (en) | Spring relaxation closed valve suspension combustion gas motor magnetic control safety valve | |
| CN216813068U (en) | Gas segmentation valve, combustor and water heater | |
| CN102252104A (en) | Micro-power opened butterfly valve | |
| CN2630587Y (en) | Lifting type plug-valve | |
| US7849832B2 (en) | Rotary piston machine | |
| US20060102130A1 (en) | Rotary valve | |
| CN103453200B (en) | instantaneous location air valve | |
| RU2619513C2 (en) | Cam drive valve opening timing, reciprocating compressor and method |
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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20110817 |