CN201818372U - Actuating mechanism of digital electron speed regulator - Google Patents
Actuating mechanism of digital electron speed regulator Download PDFInfo
- Publication number
- CN201818372U CN201818372U CN2010205812968U CN201020581296U CN201818372U CN 201818372 U CN201818372 U CN 201818372U CN 2010205812968 U CN2010205812968 U CN 2010205812968U CN 201020581296 U CN201020581296 U CN 201020581296U CN 201818372 U CN201818372 U CN 201818372U
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- linkage rod
- worm
- slide pad
- feed pump
- hole
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Abstract
The utility model discloses an actuating mechanism of a digital electron speed regulator, comprising a fixed support; a stepping motor and a turbine worm rotating device are installed on the fixed support; the stepping motor drives a linking rod linked with a fuel feed pump gear through the turbine worm rotating device; the linking rod is provided with a floating block for driving the fuel feed pump gear and moving along the radial direction of the linking rod; a spring extended along the axial direction of the linking rod for fixing the floating block is installed between the floating block and the linking rod; one end of the spring is fixedly connected with the linking rod, and the other end of the spring is fixedly connected with the floating block; a limit mechanism for overcoming the acting force of the spring to the floating block to unidirectionally limit the floating block is installed on the linking rod; an emergency stop device is installed on the fixed support; the emergency stop device comprises a stop electromagnet and a pulling rod rotatably connected with the stop electromagnet; the pulling rod is supplied with thrust force by the stop electromagnet to overcome the acting force from the spring through the floating block to the fuel feed pump gear axis and drive the relative motion between the fuel feed gear and the floating block and the linking rod.
Description
Technical field
The utility model belongs to motor and uses the electronic speed regulator field, particularly a kind of digital electronic speed regulator actuator.
Background technique
Speed regulator is the control centre of motor, can change the fuel delivery per cycle of regulating motor automatically according to engine loading, keeps the stabilization of speed of motor, thereby guarantees that motor has good working performance.What use on the mini engine is centrifugal mechanical governor, and centrifugal mechanical governor is as first generation speed regulator, its structure more complicated, and adjusting speed accuracy is relatively poor, can not satisfy market demand.In recent years, because development of computer, the digital electronic speed regulator is adopted in the speed governing of diesel engine more, but the development at home of digital electronic speed regulator is slower, and especially the digital electronic governor field at light duty diesel engine or the exploitation of diesel power generation unit still belongs to blank.
Owing to be subjected to restrictions such as diesel engine cost, accessory arrangement space, at present, adopt centrifugal mechanical governor mostly at the speed regulator of light duty diesel engine or diesel power generation unit.Also there is minority to be used for the digital electronic speed regulator actuator of light duty diesel engine speed governing in the market, it mainly uses stepper motor that driving force is provided and moves to drive linkage rod by Worm and worm-wheel gearing, linkage rod and the interlock of oil feed pump tooth bar, thereby realize adjusting, finish accurate speed governing diesel engine to the oil feed pump fuel delivery.But the structure of being taked in above-mentioned Worm and worm-wheel gearing of passing through swing arm and linkage rod causes the stuck and case accident of linkage rod easily, speed governing stability and reliability have open defect, realize interlock at the end of linkage rod by the tooth bar of flexible collar and oil feed pump in addition, its whole assembly process is had relatively high expectations to installer's qualification, assemble numerous and diversely, efficiency of assembling is lower.And because adopt worm and gear to possess the transmission system of auto-lock function like this; when emergency occurring; the device that can break the self-locking of worm and gear transmission system need be set on electronic speed regulator,, realize emergency shutdown to guarantee fast throttle to be dropped to minimum fast.
The model utility content
The purpose of this utility model provides a kind ofly can realize the transmission self-locking, can realize the digital electronic speed regulator actuator of emergency shutdown again.
For achieving the above object, the utility model adopts following technological scheme: a kind of digital electronic speed regulator actuator, comprise fixing frame, stepper motor and worm gearing are installed on fixing frame, stepper motor drives the linkage rod that is used for the interlock of oil feed pump tooth bar by worm gearing, linkage rod axially directed moving in described linkage rod upper edge is equipped with the slide pad that is used to drive the oil feed pump tooth bar, on linkage rod, be provided with the unidirectional spacing limit structure of slide pad, be provided with axially extendedly with the spring on the limit structure of slide pad roof pressure in linkage rod along linkage rod between slide pad and the linkage rod, an end of spring is connected on the linkage rod, the other end is connected on the slide pad; Be provided with emergency stop device on fixing frame, this emergency stop device comprises shuts down electromagnet and overcomes with being used to of shutting down that electromagnet is in transmission connection that spring drives slide pad to the active force of slide pad and oil feed pump tooth bar or the oil feed pump tooth bar stops driving mechanism to the urgency that minimum throttle position moves.
Be provided with the corresponding end of slide pad on the described linkage rod and be used for the mounting hole that is axially extended internally by the linkage rod end face along linkage rod that is slidingly matched with the slide pad gap, spring is assemblied in the mounting hole.
Described spring is a stage clip, at the bottom of being used on the linkage rod be the hole of mounting hole to the unidirectional spacing limit structure of slide pad, stage clip with the slide pad roof pressure at the bottom of the hole of mounting hole, stage clip be connected on the slide pad an end roof pressure slide pad away from the end end face at the bottom of the mounting hole hole on, its other end is spacing away from the stop screw of the end end at the bottom of the mounting hole hole by being installed on the linkage rod.
Described slide pad is provided with the perforation that is used for oil feed pump tooth bar Spielpassung, offers the chute that is slidingly matched with oil feed pump tooth bar glade plane space that extends axially and run through hole wall along linkage rod with the opposite position of perforation on the hole wall of mounting hole.
Described fixing frame is provided with guide pad, and guide pad is provided with along the axially extended pilot hole that is slidingly matched with linkage rod of being used for of linkage rod.
Be rotatablely equipped with worm-wheel shaft on the described fixing frame, the coaxial worm gear that is installed with the worm meshing transmission on worm-wheel shaft, worm-wheel shaft is provided with the turning lever around the worm-wheel shaft swing that radially extends along it, an end and the linkage rod away from worm-wheel shaft of turning lever are in transmission connection, and described slide pad is arranged on the end away from turning lever on the linkage rod.
The worm set on the worm screw of being sleeved on that is used to limit the worm screw axial float is installed on the described fixing frame, worm set is a flange arrangement, worm set is installed on the fixing frame by the screw that matches with flange, corresponding section with worm set on the worm screw is provided with the shaft shoulder, and the shaft shoulder cooperates with the thrust surface roof pressure of worm set.
Circumferentially be provided with groove near stirring on the outer circumferential face of rod end around it on the described worm-wheel shaft, on fixing frame with the groove corresponding section offer with along hole that worm-wheel shaft radially extends, be equipped with pin and steel ball in the hole, pin heads on steel ball and is stuck in the groove on the worm-wheel shaft.
Described linkage rod is provided with the edge perpendicular to the axially extended sliding-groove of linkage rod, turning lever is provided with the edge perpendicular to the axially extended drive link of turning lever, on the pilot hole hole wall of guide pad, offer for the curve bath of drive link with the turning lever swing, drive link passes curve bath and extends in the sliding-groove on the linkage rod, and drive link and sliding-groove gap are slidingly matched.
Described urgency is stopped driving mechanism and is comprised that the end away from shutting down electromagnet of catch bar is used for driving slide pad when shutting down work of electromagnet and the oil feed pump tooth bar moves to minimum throttle position by shutting down the catch bar that electromagnet directly drives.
In a kind of digital electronic speed regulator of the utility model actuator worm gearing is set on fixing frame, realize the transmission self-locking by the worm and gear self-locking device, and by the linkage rod of worm and gear driving with the interlock of oil feed pump tooth bar, by worm-and-wheel gear rotatablely moving of stepper motor become the straight line motion of linkage rod, thereby guarantee that the slide pad that is provided with in the linkage rod end drives the action of oil feed pump tooth bar.By the unidirectional limit structure on spring and the linkage rod slide pad is fixed on the linkage rod synchronously to realize the interlock of linkage rod and slide pad; when the needs emergency shutdown; stop driving mechanism by the shutdown electromagnet to the urgency that is in transmission connection with it power is provided; suddenly stop driving mechanism and overcome the slide pad motion that spring drives the oil feed pump tooth bar to the slide pad active force and cooperates with it; until suddenly stopping driving mechanism is driven into minimum throttle position with oil feed pump tooth bar and slide pad, realize emergency shutdown.When emergency stop device was worked, no matter which kind of working state worm and gear self-locking driving mechanism is in, which kind of working position linkage rod and slide pad were in, and all can overcome the self-locking of worm and gear and realized emergency shutdown.The utility model is simple in structure, stable drive, and actuator's stable and reliable operation can effectively guarantee the accurate speed governing to diesel engine.The utility model need not be changed original diesel engine structure, utilizes the mounting point of the speed-regulating handle of original centrifugal mechanical governor, realizes the installation of actuator, thereby has improved the economical and adaptability of product.Owing to do not change original diesel engine structure, thereby both guaranteed the convenience that digital electronic speed regulator actuator installs, uses and debug, saved development cost again.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model a structural representation;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is slide pad and a linkage rod linkage structure schematic representation among Fig. 2;
Fig. 4 is the assembly structure schematic representation between the curve bath on turning lever and linkage rod and the fixing frame among Fig. 2.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, a kind of digital electronic speed regulator actuator, comprise by the fixing frame 15 of screw on the diesel engine gear box cover, 42 stepper motor 13 and worm gearings are installed on fixing frame 15, the output revolving shaft of stepper motor 13 is in transmission connection with worm screw 12 by pin and shaft coupling 14, on fixing frame 15, be rotatablely equipped with worm-wheel shaft 4, the coaxial worm gear 10 that is installed with worm screw 12 engagement driving on worm-wheel shaft 4, the end of worm shaft 4 is provided with along its turning lever that radially extends 20, turning lever 20 is swung around worm shaft 4 with worm shaft 4 rotations, end away from worm-wheel shaft 4 of turning lever 20 is in transmission connection and is useful on the linkage rod 5 that drives oil feed pump tooth bar 6, fixing frame 15 is provided with guide pad 21, guide pad 21 is provided with along the axially extended pilot hole of linkage rod, linkage rod 5 cooperates with the pilot hole glade plane space, end away from turning lever 20 of linkage rod 5 is connected with the slide pad 7 with 6 interlocks of oil feed pump tooth bar, slide pad 7 is provided with perforation, and oil feed pump tooth bar 6 is by realizing interlock with slide pad 7 with the perforation Spielpassung.
As Fig. 1, Fig. 2, shown in Figure 3, on linkage rod 5, be provided with perpendicular to the axially extended sliding-groove 212 of linkage rod, turning lever 20 is provided with the edge perpendicular to the axially extended drive link 213 of turning lever, on the pilot hole hole wall on the guide pad 21, offer for the curve bath 211 of drive link with the turning lever swing, drive link 213 cooperates with curve bath 211 glade plane spaces, drive link 213 passes curve bath 211 and extends in the sliding-groove 212 on the linkage rod 5, and drive link 213 is slidingly matched with sliding-groove 212 gaps.
As shown in Figure 1, be restriction worm screw 12 play in the axial direction, worm set 11 is installed on fixing frame 15, this worm set 11 is a flange arrangement, be cemented on the fixing frame with three screws, worm set 11 is sleeved on the worm screw 12, and the corresponding section with worm set 11 on the worm screw 12 is a hierarchic structure, the shaft shoulder of hierarchic structure cooperates with the thrust surface roof pressure of worm set 11 on the worm screw 12, the axial float of restriction worm screw.
As shown in Figure 1, the steel ball 3 and the pin 2 that are used to limit the worm-wheel shaft axial float are installed on worm-wheel shaft 4 in the present embodiment, be provided with groove 30 near the outer circumferential face of stirring rod end on the worm-wheel shaft, on fixing frame, offer the hole of radially extending along worm-wheel shaft with groove 30 corresponding sections, steel ball 3 and pin 2 are assemblied in the hole, pin 2 heads on steel ball 3 and is installed in the groove 30 on the worm-wheel shaft, thereby finishes the axial limiting to worm-wheel shaft, prevents the axial float of worm-wheel shaft.
As shown in Figure 3, on linkage rod 5, be provided with mounting hole 22 with slide pad 7 corresponding ends, slide pad 7 gaps are arranged in the mounting hole 22 with being slidingly matched, between linkage rod 5 and slide pad 7, be provided with along the linkage rod 5 axially extended springs 8 that are used for fixing slide pad 7, one end of spring 8 is connected on the slide pad 7, the other end is connected on the linkage rod 5, what the spring in the present embodiment adopted is stage clip, stage clip be connected in an end roof pressure on the slide pad 7 on the end end face away from turning lever of slide pad, its the other end is spacing away from the stop screw 9 of an end end of turning lever by being installed in linkage rod, linkage rod 5 is provided with the active force that is used to overcome 8 pairs of slide pad 7 of spring to the unidirectional spacing limit structure of slide pad, the limit structure in the present embodiment be arranged on by at the bottom of the hole of mounting hole slide pad being carried out unidirectional spacing.In the present embodiment, under spring action, slide pad 7 is fixed on an end of linkage rod with linkage rod 5 synchronization motions, and then the interlock by perforation realization on the slide pad and oil feed pump tooth bar 6, thereby realizes adjusting to the fuel delivery size by the straight line motion of linkage rod.
Offer on the slide pad 7 be used for the oil feed pump tooth bar between the perforation that cooperates, on mounting hole 22 hole walls of linkage rod 5, offer along linkage rod and extend axially the chute that runs through hole wall with perforation opposite position place, chute is about linkage rod central axis symmetric arrangement, and the oil feed pump tooth bar passes chute and cooperates with the chute glade plane space.
The limit structure that is arranged in the present embodiment on the linkage rod is the hole bottom end of mounting hole, during concrete enforcement, also the end away from stop screw of chute can be arranged to positive stop end, set firmly the position-limited lever that matches with positive stop end at slide pad, position-limited lever cooperates with the chute glade plane space.
As Fig. 1; shown in Figure 2; on fixing frame 15, also be provided with the emergency stop device that is used to drive slide pad 7 actions; emergency stop device is mainly used in when shutting down under not having instruction or failure condition and uses; this emergency stop device comprises the shutdown electromagnet 1 that is arranged on the fixing frame 15 and stops driving mechanism with the urgency that slide pad 7 is in transmission connection; suddenly stopping driving mechanism is catch bar 31; catch bar 31 directly drives by shutting down electromagnet 1 in the present embodiment; catch bar 31 is arranged on fixing frame 48 and is provided with in the guiding groove that is slidingly matched with catch bar; during use; be integrally formed with impact block 32 on the oil feed pump tooth bar 6; catch bar 21 is over against impact block 32; when shutting down electromagnet 1 work; catch bar 21 promotes impact block 32 and moves to minimum throttle place under shutdown electromagnet 1 thrust; drive oil feed pump tooth bars 6 and slide pad 7 until impact block 32 and overcome spring 8 active forces and move to minimum throttle position, realize shutting down.
In the specific implementation; when shutdown electromagnet 1 is not worked; catch bar 31 does not contact with impact block 32 or contact but catch bar does not push impact block; but catch bar is all the time over against impact block; like this in case shut down work of electromagnet; no matter slide pad and oil feed pump tooth bar are positioned at that position, and catch bar can be pushed into slide pad and oil feed pump tooth bar the position of minimum throttle by impact block.
To guarantee during design when catch bar 31 is in the closest approach of working stroke middle distance shutdown electromagnet; catch bar does not influence the normal interlock of oil feed pump tooth bar and slide pad and linkage rod; when catch bar was in the working stroke middle distance and shuts down the solstics of electromagnet, catch bar just in time can be finished the task of slide pad and oil feed pump tooth bar being pushed into minimum throttle position.
Impact block in the present embodiment and the design of oil feed pump tooth bar one when specifically implementing, also can be the one design with impact block and slide pad.To move to minimum throttle position by promoting slide pad drive oil feed pump tooth bar when catch bar pushes impact block like this, can realize emergency shutdown equally.
During concrete enforcement; suddenly stopping driving mechanism can also can be pull bar for catch bar; shut down the opposite side that electromagnet is arranged on oil feed pump this moment, and the hook by the tie rod end setting can spur the impact block motion, finishes slide pad and the oil feed pump rack drives task to minimum throttle position.
During emergency shutdown; provide thrust by shutting down electromagnet 1 to catch bar 31; catch bar 31 promotes impact block 32; thereby until making oil feed pump tooth bar and slide pad move to the throttle minimum position, realize emergency shutdown at the bottom of making oil feed pump tooth bar 6 and slide pad 7 overcome spring to make slide pad away from the mounting hole hole to the active force of oil feed pump tooth bar by slide pad.
The utility model digital electronic speed regulator actuator in use, driving worm screw 12 by 42 stepper motors 13 rotates, by the engagement driving of worm screw 12 with worm gear 10, worm-wheel shaft 4 drives turning lever 20 swings, turning lever 20 drives linkage rod 5 and does straight line motion along pilot hole, the slide pad 7 with 6 interlocks of oil feed pump tooth bar that the end of linkage rod 5 is provided with moves along with the action of linkage rod 5, thereby realize adjusting, guarantee the speed-regulating instruction of reliable and stable execution electronic speed regulator the oil feed pump fuel delivery.Do not having under the fault state of instruction back; under the thrust of shutting down electromagnet 1; the slide pad that promotes the oil feed pump tooth bar and cooperate with it make slide pad overcome spring to the active force of slide pad away from the positive stop end of chute until making the oil feed pump tooth bar move to the throttle minimum position, realize emergency shutdown.
Claims (10)
1. digital electronic speed regulator actuator, comprise fixing frame, stepper motor and worm gearing are installed on fixing frame, stepper motor drives the linkage rod that is used for the interlock of oil feed pump tooth bar by worm gearing, it is characterized in that: linkage rod axially directed moving in described linkage rod upper edge is equipped with the slide pad that is used to drive the oil feed pump tooth bar, on linkage rod, be provided with the unidirectional spacing limit structure of slide pad, be provided with axially extendedly with the spring on the limit structure of slide pad roof pressure in linkage rod along linkage rod between slide pad and the linkage rod, an end of spring is connected on the linkage rod, the other end is connected on the slide pad; Be provided with emergency stop device on fixing frame, this emergency stop device comprises shuts down electromagnet and overcomes with being used to of shutting down that electromagnet is in transmission connection that spring drives slide pad to the active force of slide pad and oil feed pump tooth bar or the oil feed pump tooth bar stops driving mechanism to the urgency that minimum throttle position moves.
2. digital electronic speed regulator according to claim 1 actuator, it is characterized in that: be provided with the corresponding end of slide pad on the described linkage rod and be used for the mounting hole that is axially extended internally by the linkage rod end face along linkage rod that is slidingly matched with the slide pad gap, spring is assemblied in the mounting hole.
3. digital electronic speed regulator according to claim 2 actuator, it is characterized in that: described spring is a stage clip, at the bottom of being used on the linkage rod be the hole of mounting hole to the unidirectional spacing limit structure of slide pad, stage clip with the slide pad roof pressure at the bottom of the hole of mounting hole, stage clip be connected on the slide pad an end roof pressure slide pad away from the end end face at the bottom of the mounting hole hole on, its other end is spacing away from the stop screw of the end end at the bottom of the mounting hole hole by being installed on the linkage rod.
4. digital electronic speed regulator according to claim 2 actuator, it is characterized in that: described slide pad is provided with the perforation that is used for oil feed pump tooth bar Spielpassung, offers the chute that is slidingly matched with oil feed pump tooth bar glade plane space that extends axially and run through hole wall along linkage rod with the opposite position of perforation on the hole wall of mounting hole.
5. according to any described digital electronic speed regulator actuator in the claim 1 to 4, it is characterized in that: described fixing frame is provided with guide pad, and guide pad is provided with along the axially extended pilot hole that is slidingly matched with linkage rod of being used for of linkage rod.
6. according to any described digital electronic speed regulator actuator in the claim 1 to 4, it is characterized in that: be rotatablely equipped with worm-wheel shaft on the described fixing frame, the coaxial worm gear that is installed with the worm meshing transmission on worm-wheel shaft, worm-wheel shaft is provided with the turning lever around the worm-wheel shaft swing that radially extends along it, an end and the linkage rod away from worm-wheel shaft of turning lever are in transmission connection, and described slide pad is arranged on the end away from turning lever on the linkage rod.
7. electronic speed regulation according to claim 6 actuator, it is characterized in that: the worm set on the worm screw of being sleeved on that is used to limit the worm screw axial float is installed on the described fixing frame, worm set is a flange arrangement, worm set is installed on the fixing frame by the screw that matches with flange, corresponding section with worm set on the worm screw is provided with the shaft shoulder, and the shaft shoulder cooperates with the thrust surface roof pressure of worm set.
8. electronic speed regulation according to claim 6 actuator, it is characterized in that: circumferentially be provided with groove near stirring on the outer circumferential face of rod end around it on the described worm-wheel shaft, on fixing frame with the groove corresponding section offer with along hole that worm-wheel shaft radially extends, be equipped with pin and steel ball in the hole, pin heads on steel ball and is stuck in the groove on the worm-wheel shaft.
9. digital electronic speed regulator according to claim 6 actuator, it is characterized in that: described linkage rod is provided with the edge perpendicular to the axially extended sliding-groove of linkage rod, turning lever is provided with the edge perpendicular to the axially extended drive link of turning lever, on the pilot hole hole wall of guide pad, offer for the curve bath of drive link with the turning lever swing, drive link passes curve bath and extends in the sliding-groove on the linkage rod, and drive link and sliding-groove gap are slidingly matched.
10. according to any described digital electronic speed regulator actuator in the claim 1 to 4; it is characterized in that: described urgency is stopped driving mechanism and is comprised that the end away from shutting down electromagnet of catch bar is used for driving slide pad when shutting down work of electromagnet and the oil feed pump tooth bar moves to minimum throttle position by shutting down the catch bar that electromagnet directly drives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205812968U CN201818372U (en) | 2010-10-28 | 2010-10-28 | Actuating mechanism of digital electron speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205812968U CN201818372U (en) | 2010-10-28 | 2010-10-28 | Actuating mechanism of digital electron speed regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818372U true CN201818372U (en) | 2011-05-04 |
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ID=43916331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205812968U Expired - Lifetime CN201818372U (en) | 2010-10-28 | 2010-10-28 | Actuating mechanism of digital electron speed regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818372U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956609A (en) * | 2010-10-28 | 2011-01-26 | 河南科技大学 | Actuating mechanism for electron speed regulator |
| CN102840035A (en) * | 2012-09-22 | 2012-12-26 | 中国船舶重工集团公司第七�三研究所 | Novel throttle actuator |
| CN104533635A (en) * | 2015-01-04 | 2015-04-22 | 哈尔滨工程大学 | High-power diesel brushless direct current motor speed regulating actuator |
| CN110397506A (en) * | 2019-06-19 | 2019-11-01 | 盐城赛福汽车零部件有限公司 | A kind of executive device for diesel engine digital electronic governor |
-
2010
- 2010-10-28 CN CN2010205812968U patent/CN201818372U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956609A (en) * | 2010-10-28 | 2011-01-26 | 河南科技大学 | Actuating mechanism for electron speed regulator |
| CN101956609B (en) * | 2010-10-28 | 2013-06-12 | 河南科技大学 | Actuating mechanism for electron speed regulator |
| CN102840035A (en) * | 2012-09-22 | 2012-12-26 | 中国船舶重工集团公司第七�三研究所 | Novel throttle actuator |
| CN104533635A (en) * | 2015-01-04 | 2015-04-22 | 哈尔滨工程大学 | High-power diesel brushless direct current motor speed regulating actuator |
| CN104533635B (en) * | 2015-01-04 | 2017-05-24 | 哈尔滨工程大学 | High-power diesel brushless direct current motor speed regulating actuator |
| CN110397506A (en) * | 2019-06-19 | 2019-11-01 | 盐城赛福汽车零部件有限公司 | A kind of executive device for diesel engine digital electronic governor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110504 Effective date of abandoning: 20130612 |
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| RGAV | Abandon patent right to avoid regrant |