CN201908749U - Vacuum electromagnetic regulator - Google Patents
Vacuum electromagnetic regulator Download PDFInfo
- Publication number
- CN201908749U CN201908749U CN2011200644335U CN201120064433U CN201908749U CN 201908749 U CN201908749 U CN 201908749U CN 2011200644335 U CN2011200644335 U CN 2011200644335U CN 201120064433 U CN201120064433 U CN 201120064433U CN 201908749 U CN201908749 U CN 201908749U
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- CN
- China
- Prior art keywords
- pole plate
- spring
- valve body
- return rubber
- cavity
- 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 - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a vacuum electromagnetic regulator. A bracket is arranged above a magnetic conduction bracket; a pole plate is arranged in the cavity of the bracket above a valve core; an outer ring of the bracket is sleeved with a first spring; the first spring is sleeved with a sealing cover; the sealing cover is provided with return rubber; the upper end of the return rubber is provided with a second spring; the upper end of the return rubber is provided with a second spring; a first cavity is formed between the return rubber and the upper inner end face of an upper valve body; a second cavity is formed between the return rubber and a lower valve body; the return rubber is provided with a balancing hole; the middle of the valve core is provided with a through hole which is communicated with the second cavity; and a vacuum source connecting pipe and an exhaust gas recirculation (EGR) valve connecting pipe are arranged above the upper valve body. The valve core is fixed at a relative position on a framework, the valve core produces suction force on a pole plate after a coil is electrified, the pole plate moves downwards under the action of the suction force and is fixed on a spring piece, and the spring piece vibrates to drive the pole plate to move, so that a clamping stagnation phenomenon is avoided; and an adjustable threaded structure is formed between the valve core and the magnetic conduction bracket, so that the position of the valve core can be adjusted forward and backward, and the position error caused by assembly is reduced.
Description
Technical field
The utility model relates to the valve opening controlling device in a kind of engine exhaust emission gas recirculation system (egr system), belongs to engine exhaust emission control technique field.
Background technique
Vacuum electromagnetic regulator is as playing the device of regulating the EGR gas flow in the engine exhaust-gas recirculating system (egr system), its major function is that different duty by regulating the vacuum electromagnetic regulator coil voltage is (in a string desirable pulse interval sequence, the ratio in the endurance of positive pulse and total cycle of pulse) regulate the degree of vacuum size, realize the control of valve opening size.
Present vacuum governor structure as shown in Figure 1, first connecting tube 32 connects vacuum source, second connecting tube 34 connects the EGR valve, by regulating the distance of 36 of copper pin 33 and sealing gaskets, control the speed that the air in first cavity 25 is extracted out by vacuum source, final size of regulating the EGR valve opening, the distance that copper pin 33 and sealing gasket are 36 is to regulate by the electromagnetic force size of 40 pairs of spools 39 of saddle behind coil electricity, in the starting stage of vacuum electromagnetic regulator work, spool 39 is under the electromagnetic force effect of saddle 40, the amplitude of vertical tremor is bigger, the upwards vibrations of each spool, copper pin 33 all can be fitted with sealing gasket 36, have a little gap 26 between sealing gasket 36 and the block 35, air in first cavity 25 will pass through this gap 26, and the vent on the spool 39 27, inlet hole 38 on the valve body 41 communicates with atmosphere, because the inertia of spool 39 is bigger, so it is longer to reach the required time of steady state, the final stable distance of copper pin 33 and sealing gasket 36 of working as is to certain value, block 35 just is fitted in one with sealing gasket 36, second cavity 28 is just kept apart fully with first cavity 25, and the aperture of EGR just is stabilized in some values.And saddle 40 is in case assemble with following concentrating flux plate 31, both relative positions just can't change, so the positional error that produces in assembly process will directly influence product performance, have relatively high expectations with respect to the coaxality of spool head 29 in saddle hole 30, spool and saddle coaxality generation deviation cause product clamping stagnation or abnormal sound easily, thereby the generation fault makes the vacuum electromagnetic regulator decreased performance.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that exists in the existing vacuum electromagnetic regulator, provides a kind of and can avoid the positional error that produces and do not have clamping stagnation or abnormal sound in assembly process, and operation troubles is little, steady quality, the vacuum electromagnetic regulator that performance is good.
The technical solution of the utility model is:
A kind of vacuum electromagnetic regulator, comprise upper valve body, following valve body, be provided with spool in the following valve body, the outer ring of spool is provided with skeleton, the skeleton outer ring is provided with electromagnetic coil, be provided with the magnetic conduction support between electromagnetic coil outer ring and the spool, the top of magnetic conduction support is provided with support, the inner chamber of the top support of spool is provided with pole plate, be set with first spring on the outer ring of support, be set with sealing cover on first spring, sealing cover is provided with return rubber, return rubber upper end is provided with second spring, form first cavity between the upper interior end face of return rubber and upper valve body, form second cavity between return rubber and the following valve body, return rubber is provided with equalizing orifice, be provided with through hole in the middle of the spool and communicate with second cavity, the top of upper valve body is provided with vacuum source connecting tube and EGR valve connecting tube.
Be provided with the 3rd spring between the inner chamber of support and the pole plate.
The lower end surface of support and pole plate is provided with spring sheet.
The centre of pole plate is provided with porose, is provided with " worker " font fender bracket between hole in the middle of the pole plate and pole plate upper and lower end face.
The material of fender bracket is a vulcanized rubber.
Connect for the buckle mode between upper valve body and the following valve body.
Between spool and the magnetic conduction support for being threaded.
Beneficial effect: spool and skeleton relative position are fixed in the utility model, behind the coil electricity, spool produces the suction-combining force to pole plate, move downward after pole plate is stressed, because pole plate is fixed on the spring sheet, finally by the motion of the shattering zone movable plate electrode of spring sheet, adopt this structure to avoid the catching phenomenon between the spool and saddle in the original structure; Adopt adjustable worm structure between spool and the magnetic conduction support, can carry out front and back to the position of spool and regulate,, can improve the up-to-standard rate of product to reach required electromagnetic force, reduced in the existing structure because the positional error that assembly problem causes, avoided product bad and scrap.
Description of drawings
Fig. 1 is a vacuum electromagnetic regulator structural representation of the prior art;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the left view of Fig. 2.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
A kind of vacuum electromagnetic regulator, comprise upper valve body 3, following valve body 19, be provided with spool 9 in the following valve body 19, the outer ring of spool 9 is provided with skeleton 11, skeleton 11 outer rings are provided with electromagnetic coil 10, be provided with magnetic conduction support 12 between electromagnetic coil 10 outer rings and the spool 9, the top of magnetic conduction support 12 is provided with support 6, the inner chamber of the top support 6 of spool 9 is provided with pole plate 7, be set with first spring 17 on the outer ring of support 6, be set with sealing cover 5 on first spring 17, sealing cover 5 is provided with return rubber 4, return rubber 4 upper ends are provided with second spring 16, form first cavity 14 between the upper interior end face of return rubber 4 and upper valve body 3, form second cavity 20 between return rubber 4 and the following valve body 19, return rubber 4 is provided with equalizing orifice 15, be provided with through hole 23 in the middle of the spool 9 and communicate with second cavity 20, the top of upper valve body 3 is provided with vacuum source connecting tube 1 and EGR valve connecting tube 2.
Be provided with the 3rd spring 18 between the inner chamber of described support 6 and the pole plate 7.
The lower end surface of described support 6 and pole plate 7 is provided with spring sheet 8.
The centre of described pole plate 7 is provided with porose, is provided with " worker " font fender bracket 21 between hole in the middle of the pole plate 7 and pole plate 7 upper and lower end faces.
The material of described fender bracket 21 is a vulcanized rubber.
Connect for buckle 24 modes between described upper valve body 3 and the following valve body 19.
Be that screw thread 13 connects between described spool 9 and the magnetic conduction support 12.
As shown in the figure: the utility model is by first cavity, 14 pressure; second cavity, 20 pressure; second spring 16; the force action of first spring 17 4; make return rubber 4 keep state of rest; sealing cover 5 is adjacent to return rubber 4 under the effect of the 3rd spring 18; connect a very little gap is arranged between vacuum source connecting tube 1 and the sealing cover 5 this moment; air in first cavity 14 is extracted out in the gap by vacuum source; and the equalizing orifice 15 on the return rubber 4 is because first cavity 14; the pressure difference of second cavity 20 and make air flow into first cavity 14 from second cavity 20; when the speed that enters first cavity 14 from equalizing orifice 15 when the speed of vacuum source extracting air and air equates; the pressure stool and urine of first cavity 14 no longer changes; this moment, the aperture size of EGR valve also no longer changed; the air of second cavity 20 is by " worker " font fender bracket 21 on the pole plate 7 and the slit between the boss 22 on the skeleton 11; through hole 23 in the middle of the spool 9 communicates with atmosphere; second cavity 20 flows into first cavity 14 by equalizing orifice 15 air mass flow is regulated by the slit of 11 on pole plate 7 and skeleton; pole plate 7 is connected by the riveted joint mode with spring sheet 8; spring sheet 8 also is connected by the riveted joint mode with support 6; when electromagnetic coil 10 two ends add that has certain dutycycle voltage; pole plate 7 just passes through spring sheet 8 vertical tremors under the effect of electromagnetic force; and the effect of the 3rd spring 18 is to play buffer function when pole plate 7 resiliences; support 6 plays mounting spring sheet 8 in total; fix the 2 17; and be connected the effect of playing the conducting magnetic line of force with magnetic conduction support 12; vacuum electromagnetic regulator of the present utility model finally is that (the PID controller is by ratio unit (P) by the PID controller; integral unit (I) and differentiation element (D) are formed) regulate and be added in the voltage of electromagnetism 10 and make pole plate 7 in a certain position; and then regulate the throughput that atmosphere enters second cavity 20, finally regulate the size of EGR valve opening.
Spool 9 and skeleton 11 relative positions are fixed, after coil 10 energisings, 9 pairs of pole plates of spool 7 produce the suction-combining force, move downward after pole plate 7 is stressed, because pole plate 7 is fixed on the spring sheet 8, finally by the motion of the shattering zone movable plate electrode 7 of spring sheet 8, avoided the catching phenomenon between the spool and saddle in the original structure like this; Adopt adjustable worm structure between spool 9 and the magnetic conduction support 12, can carry out front and back to the position of spool 9 and regulate,, improve the up-to-standard rate of product to reach required electromagnetic force, reduced in the existing structure because the positional error that assembly problem causes, avoided product bad and scrap.
Claims (7)
1. vacuum electromagnetic regulator, comprise upper valve body (3), following valve body (19), be provided with spool (9) in the following valve body (19), the outer ring of spool (9) is provided with skeleton (11), skeleton (11) outer ring is provided with electromagnetic coil (10), be provided with magnetic conduction support (12) between electromagnetic coil (10) outer ring and the spool (9), it is characterized in that: the top of described magnetic conduction support (12) is provided with support (6), the inner chamber of the top support (6) of described spool (9) is provided with pole plate (7), be set with first spring (17) on the outer ring of described support (6), be set with sealing cover (5) on first spring (17), described sealing cover (5) is provided with return rubber (4), return rubber (4) upper end is provided with second spring (16), form first cavity (14) between the interior edge face of described return rubber (4) and upper valve body (3), form second cavity (20) between return rubber (4) and the following valve body (19), described return rubber (4) is provided with equalizing orifice (15), be provided with through hole (23) in the middle of the described spool (9) and communicate with second cavity (20), the top of upper valve body (3) is provided with vacuum source connecting tube (1) and EGR valve connecting tube (2).
2. vacuum electromagnetic regulator according to claim 1 is characterized in that: be provided with the 3rd spring (18) between the inner chamber of described support (6) and the pole plate (7).
3. vacuum electromagnetic regulator according to claim 1 is characterized in that: the lower end surface of described support (6) and pole plate (7) is provided with spring sheet (8).
4. vacuum electromagnetic regulator according to claim 1 is characterized in that: the centre of described pole plate (7) is provided with porose, is provided with " worker " font fender bracket (21) between hole in the middle of the pole plate (7) and pole plate (7) upper and lower end face.
5. vacuum electromagnetic regulator according to claim 4 is characterized in that: the material of described fender bracket (21) is a vulcanized rubber.
6. vacuum electromagnetic regulator according to claim 1 is characterized in that: connect for buckle (24) mode between described upper valve body (3) and the following valve body (19).
7. vacuum electromagnetic regulator according to claim 1 is characterized in that: connect for screw thread (13) between described spool (9) and the magnetic conduction support (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200644335U CN201908749U (en) | 2011-03-12 | 2011-03-12 | Vacuum electromagnetic regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200644335U CN201908749U (en) | 2011-03-12 | 2011-03-12 | Vacuum electromagnetic regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908749U true CN201908749U (en) | 2011-07-27 |
Family
ID=44300952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200644335U Expired - Lifetime CN201908749U (en) | 2011-03-12 | 2011-03-12 | Vacuum electromagnetic regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201908749U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080612A (en) * | 2011-03-12 | 2011-06-01 | 无锡隆盛科技有限公司 | Vacuum electromagnetic regulator |
| CN102562372A (en) * | 2012-03-26 | 2012-07-11 | 无锡隆盛科技有限公司 | Valve core structure of vacuum electromagnetic regulator with guide sleeve |
-
2011
- 2011-03-12 CN CN2011200644335U patent/CN201908749U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080612A (en) * | 2011-03-12 | 2011-06-01 | 无锡隆盛科技有限公司 | Vacuum electromagnetic regulator |
| CN102562372A (en) * | 2012-03-26 | 2012-07-11 | 无锡隆盛科技有限公司 | Valve core structure of vacuum electromagnetic regulator with guide sleeve |
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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: 20110727 Effective date of abandoning: 20120704 |