CN103603987B - A kind of bi-directional drive high-speed switch valve based on magnetic control memory alloy - Google Patents
A kind of bi-directional drive high-speed switch valve based on magnetic control memory alloy Download PDFInfo
- Publication number
- CN103603987B CN103603987B CN201310635312.5A CN201310635312A CN103603987B CN 103603987 B CN103603987 B CN 103603987B CN 201310635312 A CN201310635312 A CN 201310635312A CN 103603987 B CN103603987 B CN 103603987B
- Authority
- CN
- China
- Prior art keywords
- memory alloy
- control memory
- magnetic control
- spool
- drive unit
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- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/005—Circulation means for a separate heat transfer fluid
Abstract
The present invention relates to a kind of bi-directional drive high-speed switch valve based on magnetic control memory alloy.Its technological scheme is: left drive unit (12) and right drive unit (20) are fixed on left side and the right side of oil route controller (17) accordingly, and the two ends of the spool (15) in oil route controller (17) connect with the left magnetic control memory alloy (5) of corresponding left drive unit (12) and the right magnetic control memory alloy (27) of right drive unit (20).Left magnetic control memory alloy (5) in left drive unit (12) is positioned at the center on left field core (8) breach limit, and the left end of left magnetic control memory alloy (5) is contained in the blind hole of left footstock (6); Two limits adjacent with breach limit of left field core (8) are wound with left first field coil (2) and left second field coil (9).Left drive unit (12) is identical with right drive unit (20) structure.The present invention has that high frequency sound, High power output, structure are simple, strong interference immunity and feature for ease of maintenaince.
Description
Technical field
The invention belongs to high-speed switch valve technical field.Be specifically related to a kind of bi-directional drive high-speed switch valve based on magnetic control memory alloy.
Background technique
Since entering 21st century, because the demand of people to the hydraulic control system with features such as high frequency sound, High power output, structure are simple is more and more harsher, flourish particularly due to automotive industry, comprise the injection of automotive electronic control system fuel oil, body mounting control, wheel ABS and clutch automatically to handle, all adopt this digital control element of high-speed switch valve as contacting bridge between electronic computer and controlled device, thus make the control task that people can directly utilize electronic computer to come controlled device.Some units have carried out relevant research work both at home and abroad, develop the high-speed switch valve of various structures, but one valve flow is less faster for some switch speeds developed, the needs of Practical Project can not be met, and although secondary valve flow is large, but slowly, the response time of high-speed switch valve is generally between a few ms and tens ms for switch speed.
Summary of the invention
The present invention is intended to solve prior art defect, and object is to provide that a kind of high frequency sound, High power output, structure are simple, strong interference immunity and the bi-directional drive high-speed switch valve based on magnetic control memory alloy for ease of maintenaince.
For achieving the above object, the technical solution used in the present invention is: described high-speed switch valve is made up of left drive unit, right drive unit and oil route controller.Left drive unit is fixed on the left side of oil route controller, and right drive unit is fixed on the right side of oil route controller; The left end of the spool in oil route controller is connected with the left magnetic control memory alloy of left drive unit, and the right-hand member of the spool in oil route controller is connected with the right magnetic control memory alloy of right drive unit.
The structure of left drive unit is: left field core is arranged between left first dunnage and left second dunnage, and left first dunnage, left field core and left second dunnage are bolted on left support abutment.Left magnetic control memory alloy is positioned at the center position place on left field core breach limit, and left magnetic control memory alloy left end is contained in the blind hole of left footstock, and left footstock is embedded in the blind hole of left first dunnage.Left first field coil is wrapped in a limit adjacent with breach limit of left field core, and left second field coil is wrapped in another limit adjacent with breach limit of left field core.Two minor faces on left field core breach limit are enclosed with left first water-cooling tube and left second water-cooling tube accordingly; The non-magnetic safety cover of left support abutment and a left side is fixed on left side, left magnetic control memory alloy and the oil route controller coaxial line of oil route controller.
The structure of right drive unit is: right field core is arranged between right first dunnage and right second dunnage, and right first dunnage, right field core and right second dunnage are bolted on right support abutment.Right magnetic control memory alloy is positioned at the center position place on right field core breach limit, and right magnetic control memory alloy right-hand member is contained in the blind hole of right footstock, and right footstock is embedded in the blind hole of right first dunnage.Right first field coil is wrapped in a limit adjacent with breach limit of right field core, and right second field coil is wrapped in another limit adjacent with breach limit of right field core.Two minor faces on right field core breach limit are enclosed with right first water-cooling tube and right second water-cooling tube accordingly; The non-magnetic safety cover of right support abutment and the right side is fixed on right side, right magnetic control memory alloy and the oil route controller coaxial line of oil route controller.
The structure of oil route controller is: left valve gap is arranged on the left side of valve body, and right valve gap is arranged on the right side of valve body, and the inside of valve body is stepped cylindrical cavity, and the left-half diameter of stepped cylindrical cavity is less than right half part diameter.Valve body radial direction has two oil circuits, the P of an oil circuit
1mouth communicates with the left-half of stepped cylindrical cavity, the P of another oil circuit
2mouth communicates with the right half part of stepped cylindrical cavity.Spool coaxial line is arranged in valve body, and the intermediate portion of spool is cylindrical boss, is circular cone on the left of cylindrical boss, and the left end of spool stretches out left valve gap, and the right-hand member of spool stretches out right valve gap.The hole wall of left valve gap is equipped with left seal ring, and the hole wall of right valve gap is equipped with right seal ring.
The left end of spool is connected with left magnetic control memory alloy through left support abutment, and the right-hand member of spool is connected with right magnetic control memory alloy through right support abutment.
Described left field core is square ring, and the middle position on a limit of square ring has breach; Left field core is identical with right field core.
A described left side first water-cooling tube is rectangular tube, and one end of rectangular tube is water intake, and the other end is water outlet; The surface of rectangular tube scribbles NULL.Left first water-cooling tube and left second water-cooling tube, right first water-cooling tube are all identical with right second water-cooling tube.
Described left footstock is " T " font cylindrical body, and the cylinder diameter on the left footstock left side is greater than the cylinder diameter on the right, and the right-hand member of left footstock has blind hole, and the material of left footstock is NULL; Left footstock is identical with right footstock.
The left end of described spool is connected with the left magnetic control memory alloy of left drive unit and refers to: the center of the left end end face of spool has blind hole, and the right-hand member of the left magnetic control memory alloy of left drive unit is placed in the blind hole of spool left end.
The right-hand member of described spool is connected with the right magnetic control memory alloy of right drive unit and refers to: the center of the right-hand member end face of spool has blind hole, and the left end of the right magnetic control memory alloy of right drive unit is placed in the blind hole of spool right-hand member.
Owing to adopting technique scheme, left magnetic control memory alloy of the present invention is positioned at the center position place on left field core breach limit, left magnetic control memory alloy left end is contained in the blind hole of left footstock, left magnetic control memory alloy right-hand member is contained in the blind hole of spool left end, left first field coil is wrapped in a limit adjacent with breach limit of left field core, and left second field coil is wrapped in another limit adjacent with breach limit of left field core; Right magnetic control memory alloy is positioned at the center position place on right field core breach limit, right magnetic control memory alloy right-hand member is contained in the blind hole of right footstock, right magnetic control memory alloy left end is contained in the blind hole of spool right-hand member, right first field coil is wrapped in a limit adjacent with breach limit of right field core, and right second field coil is wrapped in another limit adjacent with breach limit of right field core.Left first field coil and left second field coil are when being energized, magnetic field is produced in left field core, the magnetic direction of left field core indentation, there is vertical with left magnetic control memory alloy, make it extend, promotion spool moves right, circular cone on spool leaves the cylindrical cavity of valve body left-half, makes P
1mouth and P
2two oil circuits of mouth are through, realize the unlatching of switch valve; Right first field coil and right second field coil produce magnetic field when being energized in right field core, the magnetic direction of right field core indentation, there is vertical with right magnetic control memory alloy, make it extend, promote spool to left movement, circular cone on spool covers the cylindrical cavity of valve body left-half, makes P
1mouth and P
2two oil circuits of mouth disconnect, and realize the closed of switch valve.
Therefore, the present invention compared with prior art tool have the following advantages:
1, the present invention adopts left magnetic control memory alloy and right magnetic control memory alloy to provide the power of axial motion for spool, because the output displacement of left magnetic control memory alloy and right magnetic control memory alloy is large, High power output, control accuracy is high, response time is less than 1ms, has distortion large, High power output and the feature such as deformation response is fast, thus ensure that spool can react rapidly at work, and there is the sealing of enough large card switch valve oil circuit of trying hard to keep.
2, the present invention utilizes left magnetic control memory alloy and right magnetic control memory alloy to provide the power of axial motion for spool, do not have the equipment such as complicated motor, and switch valve structure on two sides is completely the same, so structure is simple, easy to operate, is easy to later period maintenance.
3, the hole wall that the present invention is equipped with left seal ring and right valve gap at the hole wall of left valve gap is equipped with right seal ring, with the leakage preventing the gap of switch valve valve gap and spool from causing, makes switch valve have good sealing.
4, the present invention adopt water-cooled form be power system cooling, can effectively prevent left magnetic control memory alloy and right magnetic control memory alloy environment temperature too high, improve working effect.
5, the present invention adopts the footstock having non-magnet material and make, the water-cooling tube scribbling non-magnet material and two ends that non-magnetic safety cover is housed, and magnetic field environment is stablized, and disturbs little.
Therefore, the present invention has that high frequency sound, High power output, structure are simple, strong interference immunity and feature for ease of maintenaince, has good market prospects.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the A-A direction view of Fig. 1;
Fig. 3 is the schematic shapes of water-cooling tube 3 in Fig. 1;
Fig. 4 is the schematic shapes of footstock 6 in Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, the restriction not to its protection domain.
embodiment 1
A kind of bi-directional drive high-speed switch valve based on magnetic control memory alloy.Described high-speed switch valve is as shown in Figure 1: be made up of left drive unit 12, right drive unit 20 and oil route controller 17.Left drive unit 12 is fixed on the left side of oil route controller 17, and right drive unit 20 is fixed on the right side of oil route controller 17; The left end of the spool 15 in oil route controller 17 is connected with the left magnetic control memory alloy 5 of left drive unit 12, and the right-hand member of the spool 15 in oil route controller 17 is connected with the right magnetic control memory alloy 27 of right drive unit 20.
The structure of left drive unit 12 is as shown in Figure 1: left field core 8 is arranged between left first dunnage 4 and left second dunnage 10, and left first dunnage 4, left field core 8 and left second dunnage 10 are bolted on left support abutment 11.Left magnetic control memory alloy 5 is positioned at the center position place on left field core 8 breach limit, and left magnetic control memory alloy 5 left end is contained in the blind hole of left footstock 6, and left footstock 6 is embedded in the blind hole of left first dunnage 4.Left first field coil 2 is wrapped in a limit adjacent with breach limit of left field core 8, and left second field coil 9 is wrapped in another limit adjacent with breach limit of left field core 8.Two minor faces on left field core 8 breach limit are enclosed with left first water-cooling tube 3 and left second water-cooling tube 7 accordingly; The non-magnetic safety cover 1 of left support abutment 11 and a left side is fixed on the left side of oil route controller 17, left magnetic control memory alloy 5 and oil route controller 17 coaxial line.
The structure of right drive unit 20 is as shown in Figure 1: right field core 24 is arranged between right first dunnage 28 and right second dunnage 22, and right first dunnage 28, right field core 24 and right second dunnage 22 are bolted on right support abutment 21.Right magnetic control memory alloy 27 is positioned at the center position place on right field core 24 breach limit, and right magnetic control memory alloy 27 right-hand member is contained in the blind hole of right footstock 26, and right footstock 26 is embedded in the blind hole of right first dunnage 28.Right first field coil 30 is wrapped in a limit adjacent with breach limit of right field core 24, and right second field coil 23 is wrapped in another limit adjacent with breach limit of right field core 24.Two minor faces on right field core 24 breach limit are enclosed with right first water-cooling tube 29 and right second water-cooling tube 25 accordingly; The non-magnetic safety cover 31 of right support abutment 21 and the right side is fixed on the right side of oil route controller 17, right magnetic control memory alloy 27 and oil route controller 17 coaxial line.
The structure of oil route controller 17 is as shown in Figure 1: left valve gap 13 is arranged on the left side of valve body 16, right valve gap 19 is arranged on the right side of valve body 16, the inside of valve body 16 is stepped cylindrical cavity, and the left-half diameter of stepped cylindrical cavity is less than right half part diameter.Valve body 16 radial direction has two oil circuits, the P of an oil circuit
1mouth communicates with the left-half of stepped cylindrical cavity, the P of another oil circuit
2mouth communicates with the right half part of stepped cylindrical cavity.Spool 15 coaxial line is arranged in valve body 16, and the intermediate portion of spool 15 is cylindrical boss, is circular cone on the left of cylindrical boss, and the left end of spool 15 stretches out left valve gap 13, and the right-hand member of spool 15 stretches out right valve gap 19.The hole wall of left valve gap 13 is equipped with left seal ring 14, and the hole wall of right valve gap 19 is equipped with right seal ring 18.
As shown in Figure 1: the left end of spool 15 is connected with left magnetic control memory alloy 5 through left support abutment 11, the right-hand member of spool 15 is connected with right magnetic control memory alloy 27 through right support abutment 21.
As shown in Figure 2, the left field core 8 described in the present embodiment is square ring, and the middle position on a limit of square ring has breach; Left field core 8 is identical with right field core 24.
As shown in Figure 3, a left side first water-cooling tube 3 described in the present embodiment is rectangular tube, and one end of rectangular tube is water intake, and the other end is water outlet; The surface of rectangular tube scribbles NULL.Left first water-cooling tube 3 and left second water-cooling tube 7, right first water-cooling tube 29 are all identical with right second water-cooling tube 25.
As shown in Figure 4, the left footstock 6 described in the present embodiment is " T " font cylindrical body, and the cylinder diameter on left footstock 6 left side is greater than the cylinder diameter on the right, and the right-hand member of left footstock 6 has blind hole, and the material of left footstock 6 is NULL; Left footstock 6 is identical with right footstock 26.
As shown in Figure 1, the left end of described spool 15 is connected with the left magnetic control memory alloy 5 of left drive unit 12 and refers to: the center of the left end end face of spool 15 has blind hole, and the right-hand member of the left magnetic control memory alloy 5 of left drive unit 12 is placed in the blind hole of spool 15 left end.
As shown in Figure 1, the right-hand member of described spool 15 is connected with the right magnetic control memory alloy 27 of right drive unit 20 and refers to: the center of the right-hand member end face of spool 15 has blind hole, and the left end of the right magnetic control memory alloy 27 of right drive unit 20 is placed in the blind hole of spool 15 right-hand member.
Compared with prior art, tool has the following advantages this embodiment:
1, this embodiment adopts left magnetic control memory alloy 5 and right magnetic control memory alloy 27 to provide the power of axial motion for spool 15, because the output displacement of left magnetic control memory alloy 5 and right magnetic control memory alloy 27 is large, High power output, control accuracy is high, response time is less than 1ms, has distortion large, High power output and the feature such as deformation response is fast, thus ensure that spool 15 can react rapidly at work, and there is the sealing of enough large card switch valve oil circuit of trying hard to keep.
2, this embodiment utilizes left magnetic control memory alloy 5 and right magnetic control memory alloy 27 to provide the power of axial motion for spool, there is no the equipment such as complicated motor, and switch valve structure on two sides is completely the same, so structure is simple, easy to operate, be easy to later period maintenance.
3, the hole wall that this embodiment is equipped with left seal ring 14 and right valve gap 19 at the hole wall of left valve gap 13 is equipped with right seal ring 18, with the leakage preventing the gap of switch valve valve gap and spool 15 from causing, makes switch valve have good sealing.
4, this embodiment adopts water-cooled form to be power system cooling, can effectively prevent left magnetic control memory alloy 5 and right magnetic control memory alloy 27 environment temperature too high, improve working effect.
5, this embodiment adopts the footstock having non-magnet material and make, the water cooling tube scribbling non-magnet material and two ends that non-magnetic safety cover is housed, and magnetic field environment is stablized, and disturbs little.
Therefore, this embodiment has that high frequency sound, High power output, structure are simple, strong interference immunity and feature for ease of maintenaince, has good market prospects.
Claims (6)
1., based on a bi-directional drive high-speed switch valve for magnetic control memory alloy, it is characterized in that described high-speed switch valve is made up of left drive unit (12), right drive unit (20) and oil route controller (17); Left drive unit (12) is fixed on the left side of oil route controller (17), and right drive unit (20) is fixed on the right side of oil route controller (17); The left end of the spool (15) in oil route controller (17) is connected with the left magnetic control memory alloy (5) of left drive unit (12), and the right-hand member of the spool (15) in oil route controller (17) is connected with the right magnetic control memory alloy (27) of right drive unit (20);
The structure of left drive unit (12) is: left field core (8) is arranged between left first dunnage (4) and left second dunnage (10), and left first dunnage (4), left field core (8) and left second dunnage (10) are bolted on left support abutment (11); Left magnetic control memory alloy (5) is positioned at the center position place on left field core (8) breach limit, left magnetic control memory alloy (5) left end is contained in the blind hole of left footstock (6), and left footstock (6) is embedded in the blind hole of left first dunnage (4); Left first field coil (2) is wrapped in a limit adjacent with breach limit of left field core (8), and left second field coil (9) is wrapped in another limit adjacent with breach limit of left field core (8); Two minor faces on left field core (8) breach limit are enclosed with left first water-cooling tube (3) and left second water-cooling tube (7) accordingly; Left support abutment (11) and a left side non-magnetic safety cover (1) are fixed on the left side of oil route controller (17), left magnetic control memory alloy (5) and oil route controller (17) coaxial line;
The structure of right drive unit (20) is: right field core (24) is arranged between right first dunnage (28) and right second dunnage (22), and right first dunnage (28), right field core (24) and right second dunnage (22) are bolted on right support abutment (21); Right magnetic control memory alloy (27) is positioned at the center position place on right field core (24) breach limit, right magnetic control memory alloy (27) right-hand member is contained in the blind hole of right footstock (26), and right footstock (26) is embedded in the blind hole of right first dunnage (28); Right first field coil (30) is wrapped in a limit adjacent with breach limit of right field core (24), and right second field coil (23) is wrapped in another limit adjacent with breach limit of right field core (24); Two minor faces on right field core (24) breach limit are enclosed with right first water-cooling tube (29) and right second water-cooling tube (25) accordingly; Right support abutment (21) and the right side non-magnetic safety cover (31) are fixed on the right side of oil route controller (17), right magnetic control memory alloy (27) and oil route controller (17) coaxial line;
The structure of oil route controller (17) is: left valve gap (13) is arranged on the left side of valve body (16), right valve gap (19) is arranged on the right side of valve body (16), the inside of valve body (16) is stepped cylindrical cavity, and the left-half diameter of stepped cylindrical cavity is less than right half part diameter; Valve body (16) radial direction has two oil circuits, the P of an oil circuit
1mouth communicates with the left-half of stepped cylindrical cavity, the P of another oil circuit
2mouth communicates with the right half part of stepped cylindrical cavity; Spool (15) coaxial line is arranged in valve body (16), and the intermediate portion of spool (15) is cylindrical boss, is circular cone on the left of cylindrical boss, spool
(15) left end stretches out left valve gap (13), and the right-hand member of spool (15) stretches out right valve gap (19); The hole wall of left valve gap (13) is equipped with left seal ring (14), and the hole wall of right valve gap (19) is equipped with right seal ring (18);
The left end of spool (15) is connected with left magnetic control memory alloy (5) through left support abutment (11), and the right-hand member of spool (15) is connected with right magnetic control memory alloy (27) through right support abutment (21).
2. the bi-directional drive high-speed switch valve based on magnetic control memory alloy according to claim 1, it is characterized in that described left field core (8) is square ring, the middle position on a limit of square ring has breach; Left field core (8) is identical with right field core (24).
3. the bi-directional drive high-speed switch valve based on magnetic control memory alloy according to claim 1, it is characterized in that a described left side first water-cooling tube (3) is rectangular tube, one end of rectangular tube is water intake, and the other end is water outlet, and the surface of rectangular tube scribbles NULL; Left first water-cooling tube (3), left second water-cooling tube (7), right first water-cooling tube (29) are all identical with right second water-cooling tube (25).
4. the bi-directional drive high-speed switch valve based on magnetic control memory alloy according to claim 1, it is characterized in that described left footstock (6) is " T " font cylindrical body, the cylinder diameter on left footstock (6) left side is greater than the cylinder diameter on the right, the right-hand member of left footstock (6) has blind hole, and the material of left footstock (6) is NULL; Left footstock (6) is identical with right footstock (26).
5. the bi-directional drive high-speed switch valve based on magnetic control memory alloy according to claim 1, it is characterized in that the left end of described spool (15) is connected with the left magnetic control memory alloy (5) of left drive unit (12) to refer to: the center of the left end end face of spool (15) has blind hole, and the right-hand member of the left magnetic control memory alloy (5) of left drive unit (12) is placed in the blind hole of spool (15) left end.
6. the bi-directional drive high-speed switch valve based on magnetic control memory alloy according to claim 1, it is characterized in that the right-hand member of described spool (15) is connected with the right magnetic control memory alloy (27) of right drive unit (20) to refer to: the center of the right-hand member end face of spool (15) has blind hole, and the left end of the right magnetic control memory alloy (27) of right drive unit (20) is placed in the blind hole of spool (15) right-hand member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635312.5A CN103603987B (en) | 2013-12-03 | 2013-12-03 | A kind of bi-directional drive high-speed switch valve based on magnetic control memory alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310635312.5A CN103603987B (en) | 2013-12-03 | 2013-12-03 | A kind of bi-directional drive high-speed switch valve based on magnetic control memory alloy |
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| Publication Number | Publication Date |
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| CN103603987A CN103603987A (en) | 2014-02-26 |
| CN103603987B true CN103603987B (en) | 2015-09-02 |
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| CN201310635312.5A Expired - Fee Related CN103603987B (en) | 2013-12-03 | 2013-12-03 | A kind of bi-directional drive high-speed switch valve based on magnetic control memory alloy |
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| CN106352144A (en) * | 2016-09-12 | 2017-01-25 | 西安航天动力研究所 | Magnetic valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213243A (en) * | 2011-06-01 | 2011-10-12 | 武汉科技大学 | Composite high-efficiency high-flow servo valve |
| CN203051912U (en) * | 2013-01-14 | 2013-07-10 | 昆明理工大学 | Low-flow magnetorheological high-speed switch valve |
| CN203604771U (en) * | 2013-12-03 | 2014-05-21 | 武汉科技大学 | High-flow and high-speed switching valve based on magnetic control memory alloy |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3414253B2 (en) * | 1998-03-26 | 2003-06-09 | トヨタ自動車株式会社 | solenoid valve |
| JP2004225989A (en) * | 2003-01-22 | 2004-08-12 | Tgk Co Ltd | Expansion valve with solenoid valve |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213243A (en) * | 2011-06-01 | 2011-10-12 | 武汉科技大学 | Composite high-efficiency high-flow servo valve |
| CN203051912U (en) * | 2013-01-14 | 2013-07-10 | 昆明理工大学 | Low-flow magnetorheological high-speed switch valve |
| CN203604771U (en) * | 2013-12-03 | 2014-05-21 | 武汉科技大学 | High-flow and high-speed switching valve based on magnetic control memory alloy |
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