CN102588153A

CN102588153A - Vacuum electromagnetic regulator

Info

Publication number: CN102588153A
Application number: CN2012100816468A
Authority: CN
Inventors: 陈凯; 倪铭; 张华�; 肖�琳; 邵兴隆
Original assignee: Wuxi Longsheng Technology Co Ltd
Current assignee: Wuxi Longsheng Technology Co Ltd
Priority date: 2012-03-26
Filing date: 2012-03-26
Publication date: 2012-07-18

Abstract

The invention discloses a vacuum electromagnetic regulator, which comprises a valve, a valve cover, an armature, an air tap, a coil and a filter, wherein the valve cover is connected to the upper portion of the valve, the armature is arranged in the valve, the air tap is arranged on the valve, and the coil and the filter are arranged in the valve. The filter is detachably and movably connected with the air tap, an air filtering membrane is arranged in the filter, a filter cover is arranged outside the filter, a vacuum input cavity and a vacuum output cavity are arranged in the valve cover, an ejector pin is arranged in the vacuum input cavity, a through hole is arranged in the middle of the ejector pin and communicated with the vacuum input cavity, a sealing leather membrane is further arranged between the valve and the valve cover, an armature sleeve is arranged in an inner hole at the upper end of the coil arranged in the valve, an oilless bearing is arranged in the armature sleeve, a saddle sleeve is arranged in an inner hole at the other end of the coil, and a saddle is arranged in the saddle sleeve. The air filtering membrane of the independent filter can be cleaned at regular intervals, deformation of the oilless bearing directly pressed into the inner hole of the coil is avoided, and a valve spool moves more smoothly.

Description

A kind of vacuum electromagnetic regulator

Technical field

The present invention relates to the valve opening controlling device in a kind of engine exhaust emission gas recirculation system (EGR), belong to the engine exhaust emission control gear.

Background technique

Vacuum electromagnetic regulator is as playing the controlling device of regulating the effect of EGR gas flow in the engine exhaust-gas recirculating system (egr system); In whole system, play an important role; Its major function is the size that changes magnetic force through the electric current that changes the vacuum electromagnetic regulator coil; Promote spool at the valve internal motion, and then the break-make gap and the frequency of input of the vacuum of regulation valve body and atmosphere, reach the purpose of exporting different degree of vacuum.Because existing vacuum electromagnetic regulator adopts saddle to cross the win assembled construction, because of the wearing and tearing of the size error and the frock of component, the relative position of the product component that assemble differs bigger, the very difficult assurance of uniformity in product performance; The oilless bearing that cooperates with spool adopts the mode that directly is pressed into the coil endoporus, is out of shape greatlyyer, and spool catching phenomenon can occur when in oilless bearing, moving, and has a strong impact on product performance; Also have the air-filtering mode to adopt three-stage filtration, the assembling back just can't be cleaned filter screen, behind the dust obstruction filter screen, will cause product performance bad even scrap.

Summary of the invention

Technical problem to be solved by this invention provides a kind ofly can avoid the saddle assembly error, reduces the oilless bearing assembly deflections, the vacuum electromagnetic regulator that airstrainer is convenient to clean.

Technological scheme of the present invention is:

A kind of vacuum electromagnetic regulator comprises valve body, interior coil, the filter cleaner that is provided with of valve gap, the armature in the valve body, the valve on the valve body, valve body that valve body top connects, and filter cleaner and valve are removable flexible connection; Be provided with the air-filtering film in the filter cleaner, filter cleaner is outside equipped with strainer cover; Be provided with vacuum input cavity, vacuum output cavity in the valve gap, be provided with thimble in the vacuum input cavity, the centre of thimble is a through hole; Communicate with the vacuum input cavity; Also be provided with the sealing epithelium between valve body and the valve gap, be provided with the armature sleeve pipe in the endoporus of the coil upper end that is provided with in the valve body, be provided with oilless bearing in the armature sleeve pipe; Be provided with the saddle sleeve pipe in the other end endoporus of coil, be provided with saddle in the saddle sleeve pipe.

Be screw-thread fit between saddle sleeve pipe and the saddle, be provided with adjusting screw in the middle of the saddle.

Filter cleaner is connected through oblique button mode with strainer cover.

It between armature sleeve pipe and the oilless bearing interference fit.

Beneficial effect: vacuum electromagnetic regulator of the present invention adopts independently cleaner structure, can regularly clean the air-filtering film in the filter cleaner, and oilless bearing and the advanced luggage of armature sleeve pipe are joined; Carry out shaping with the shaping frock then; Avoid oilless bearing directly to be pressed into the distortion that the coil endoporus causes, made valve core movement more smooth and easy, adopted thread connecting mode between saddle sleeve pipe, saddle and the adjusting screw; Can be to saddle; The adjusting screw front-back direction is regulated, and changes the size of vacuum electromagnetic regulator degree of vacuum, finally regulates the electromagnetic force size in the working procedure.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Among the figure: 1-valve gap, 2-sealing epithelium, 4-valve body, 5-armature, 6-oilless bearing, 7-coil, 8-vacuum input cavity, 9-vacuum output cavity, 11-break-make epithelium, 14-filter cleaner, 15-strainer cover, 16-air-filtering film, 17-valve, 18-armature sleeve pipe, 19-adjusting screw, 20-saddle, 21-saddle sleeve pipe, 22-thimble.

Embodiment

Below in conjunction with concrete accompanying drawing the present invention is described further.

A kind of vacuum electromagnetic regulator comprises valve gap 1 that valve body 4, valve body 4 tops connect, the armature 5 in the valve body 4, the valve 17 on the valve body 4) coil 7, the filter cleaners 14 that are provided with in the valve body 4, filter cleaner 14 is removable flexible connection with valve 17; Be provided with air-filtering film 16 in the filter cleaner 14, filter cleaner 14 is outside equipped with strainer cover 15; Be provided with vacuum input cavity 8, vacuum output cavity 9 in the valve gap 1, be provided with thimble 22 in the vacuum input cavity 8, the centre of thimble 22 is a through hole; Communicate with vacuum input cavity 8; Also be provided with sealing epithelium 2 between valve body 4 and the valve gap 1, be provided with armature sleeve pipe 18 in the endoporus of coil 7 upper ends that are provided with in the valve body 4, be provided with oilless bearing 6 in the armature sleeve pipe 18; Be provided with saddle sleeve pipe 21 in the other end endoporus of coil 7, be provided with saddle 20 in the saddle sleeve pipe 21.

Be screw-thread fit between saddle sleeve pipe 21 and the saddle 20, be provided with adjusting screw 19 in the middle of the saddle 20.

Filter cleaner 14 is connected through oblique button mode with strainer cover 15.

Be interference fit between armature sleeve pipe 18 and the oilless bearing 6.

Be provided with one section screw thread in saddle sleeve pipe 21 endoporus, can with the screw-thread fit of saddle 20, saddle 20 can move forward and backward in saddle sleeve pipe 21 through threaded adjusting, saddle 20 centers also are provided with the adjusting screw thread, adjusting screw 19 is regulated before and after can be in the saddle hole.

Strainer cover 15 is connected through oblique button mode with filter cleaner 14, can regularly clean the dust on the air-filtering film 16.

Be equipped with oilless bearing 6 in the armature sleeve pipe 18, oilless bearing 6 was to win to cooperate with armature sleeve pipe 18, corrected owing to assemble the distortion that causes through the shaping frock, guaranteed the cylindricity of oilless bearing 6, and it is smooth and easy that armature 5 is moved in oilless bearing 6.

Described saddle sleeve pipe 21, saddle 20 and adjusting screw 19 are connected through engage thread; Can control the relative distance of saddle 20, adjusting screw 19 and armature 5 easily; Guaranteed the conformity of the actual aperture of each vacuum electromagnetic regulator, improved the up-to-standard rate of product with the expectation aperture.

When vacuum electromagnetic regulator input voltage; The magnetic force that coil 7 produces is drop-down with vacuum electromagnetic regulator armature 5; Make vacuum electromagnetic regulator thimble 22 break away from break-make epithelium 11, vacuum electromagnetic regulator vacuum input cavity 8 and 9 conductings of vacuum output cavity, promptly vacuum output cavity 9 is through through hole and 8 conductings of vacuum input cavity in the middle of gap between thimble 22 and the break-make epithelium 11 and the thimble 22; The degree of vacuum that final final controlling element is the EGR vacuum chamber increases, and EGR opens.

Claims

1. vacuum electromagnetic regulator; Comprise valve body (4), interior coil (7), the filter cleaner (14) that is provided with of valve gap (1), the armature (5) in the valve body (4), the valve (17) on the valve body (4), valve body (4) that valve body (4) top connects; It is characterized in that: said filter cleaner (14) is removable flexible connection with valve (17); Be provided with air-filtering film (16) in the filter cleaner (14), filter cleaner (14) is outside equipped with strainer cover (15); Be provided with vacuum input cavity (8), vacuum output cavity (9) in the said valve gap (1), be provided with thimble (22) in the vacuum input cavity (8), the centre of thimble (22) is a through hole; Communicate with vacuum input cavity (8); Also be provided with sealing epithelium (2) between valve body (4) and the valve gap (1), be provided with armature sleeve pipe (18) in the endoporus of the coil (7) that is provided with in the valve body (4) upper end, be provided with oilless bearing (6) in the armature sleeve pipe (18); Be provided with saddle sleeve pipe (21) in the other end endoporus of coil (7), be provided with saddle (20) in the saddle sleeve pipe (21).

2. vacuum electromagnetic regulator according to claim 1 is characterized in that: be between said saddle sleeve pipe (21) and the saddle (20) screw-thread fit to be provided with adjusting screw (19) in the middle of the saddle (20).

3. vacuum electromagnetic regulator according to claim 1 is characterized in that: said filter cleaner (14) is connected through oblique button mode with strainer cover (15).

4. vacuum electromagnetic regulator according to claim 1 is characterized in that: be interference fit between said armature sleeve pipe (18) and the oilless bearing (6).