CN208718755U - A kind of mist of oil separation fine filtering device - Google Patents

Abstract

The utility model provides a kind of mist of oil separation fine filtering device, it include: refined filtration plate, refined filtration snap-gauge, separation block, refined filtration plate is equipped with the orifice plate flowed into inwardly to mist of oil by its outside, and both ends are respectively equipped with the first limit ribs, the second limit ribs and top equipped with third limit ribs on the inside of orifice plate；Refined filtration snap-gauge includes cavity and baffle, bottom gap transverse bar, vertical gap rib, and baffle is at least at least substantially air-locked in the region after the edge flow direction of baffle is in separation block region in mist of oil flow direction；There is the first side rib having respectively with baffle both sides, second side rib to form the first button bit, the second button bit of buckle structure, refined filtration snap-gauge is detachably connected by the buckle structure and the baffle on first limit ribs, the second limit ribs.This case can efficiently separate the gentle body portion in oil droplet part in mist of oil, while have that long-term work is stable, structure is simple, production process is few, manufacturing cost is low, good separating effect.

Description

A kind of mist of oil separation fine filtering device

Technical field

The utility model relates to high efficiency mist of oils to separate refined filtration structure, belong to automobile power assembly field, relate generally to send out Motivation oil gas separator.

Background technique

As increasingly maturation, the more and more automobile products of automobile market are devoted in market, along with increasingly tight The emission pollution problem of weight, also becomes strictly the emission regulation of vehicle, the standard of formulation is also gradually increased, therefore mist of oil therewith Separator requires higher and higher.

The camshaft rotatably supported in the cylinder head of engine is configured to hollow shaft, and is loaded with the gas leakage of mist of oil It is first drawn into the cavity of camshaft, camshaft constitutes the first order of mist of oil separation equipment；Then, part is removed to start The gas leakage of machine oil reaches mist of oil again in separator, and separator constitutes the second level of mist of oil separation equipment and in cylinder mist of oil again It is fixedly set on the side wall of lid.Separator is above-mentioned oil mist separator to the mist of oil again, and separator has substantially the mist of oil again The upright shell being square, the shell surround chamber, which is divided into entrance cavity region by the partition wall being obliquely distributed and is gone out Mouth area.Gas leakage to be cleaned is introduced in entrance cavity region above, and the upper half of partition wall, which is equipped with, is used for unstripped gas The hole that body passes through, and the unstrpped gas Shu Ranhou generated by this some holes encounters on retaining wall, and the retaining wall is with being parallel to partition wall Distribution is arranged in a manner of having spacing with partition wall, is extend into outlet cavity region on top and to be constituted with by shell Bottom of chamber portion have very big spacing mode terminate.It covers added with non-woven fabrics the inflow side of retaining wall.On the outflow side of partition wall, lead to The retaining wall equipped with non-woven fabrics is crossed, by oil droplet from separating and being dripped in the portion of bottom of chamber in unstrpped gas, bottom of chamber portion is in outlet plenum Oil stream is equipped in region to export.It is at least partially removed the unstrpped gas of mist of oil in this way on top from outlet cavity region Outflow more precisely passes through and is arranged in raw material that is on shell, nipple and orienting in vertical direction on top Gas vent outflow.

In general, the valve chamber cover in automobile engine all can be equipped with oil mist separator, oil mist separator it is main Function is to separate the oil gas scurried out out of cylinder, adjusts the pressure in crankcase, avoids bent reduce off-flavor normal, cause seal fails, Secondly, on the one hand can waste fuel if gas blowby is directly discharged in atmosphere, on the one hand atmosphere can also be polluted, and it is right Mist of oil separating property influences maximum to be refined filtration structure.

In well known, the composition the mist of oil again separator of separator, the orifice plate in separator faces described at it The side of baffle is equipped with multiple spacing holding elements, and refined filtration plate has the mechanism of multiple lug boss forms as fixed member Part, fixing element are arranged on orifice plate and/or baffle, stretch out and invade in separating layer, the structure from orifice plate and/or baffle Fixation have to invade or pass through separating layer, structure is more complicated and the process that increases intrusion, due to invading or passing through point Absciss layer and form perforation, once separating layer will lead to mist of oil leakage, separation caused by leakproofness is insufficient using just being destroyed by perforation Effect is poor, limit is unstable, disassembly re-replaces the problems such as separating layer is more troublesome.

Utility model content

One purpose of the utility model is in view of the drawbacks of the prior art, to provide that a kind of long-term work is stable, structure letter Single, good separating effect mist of oil separates fine filtering device.

Particularly, the utility model provides a kind of mist of oil separation fine filtering device, comprising: refined filtration plate, refined filtration snap-gauge, separation Block, wherein

The refined filtration plate is equipped with the orifice plate flowed into inwardly to mist of oil by its outside, and both ends are set respectively on the inside of the orifice plate Have for limiting the first limit ribs moved on mist of oil inflow direction when the separation block is placed in the refined filtration snap-gauge, the Two limit ribs and top are equipped with to be flowed into when the separation block is placed in the refined filtration snap-gauge perpendicular to mist of oil for limiting Direction on the third limit ribs that move；

The refined filtration snap-gauge includes for accommodating the cavity for separating block and surrounding the baffle of the cavity, bottom Vertical gap rib of the row to guide the mist of oil flow direction flowed into from orifice plate, mist of oil are furnished at gap transverse bar, face refined filtration plate From orifice plate flow out to separation block between stroke be vertical gap rib with the width in the orifice plate vertical direction, the gear Plate in mist of oil flow direction at least along the region after the baffle is in the separation block region along the flow direction extremely It is substantially air-locked less；

There is the first side muscle having respectively with the baffle both sides on first limit ribs, the second limit ribs Item, second side rib formed buckle structure the first button bit, the second button bit, the refined filtration snap-gauge by the buckle structure with The baffle is detachably connected.

Further, top, the lower part of refined filtration plate two sides are respectively equipped with card slot, the vertical gap rib it is upper Portion, lower part are respectively equipped with the detent portion vertical in the vertical gap rib, and the detent portion corresponds and protrudes into and cooperate institute Card slot is stated, is connected to the position on refined filtration plate to the pre-qualified refined filtration snap-gauge.

Further, the direction of the card slot opening on the top of refined filtration plate two sides is opposite, the side of the card slot opening of lower part To opposite.

Further, after the refined filtration snap-gauge is connected to refined filtration plate, the vertical gap rib of a row of the refined filtration snap-gauge with The medial surface of refined filtration plate fits, so that the gas part in the mist of oil is flowed out between the separation block and refined filtration plate, oil Oil droplet part in mist is dripped from the bottom of the separation block.

Further, in the vertical gap rib of a row of the refined filtration snap-gauge, between every two adjacent vertical ribs Gap is 3mm-5mm.

Further, refined filtration plate two sides are respectively provided with the first limit ribs, the second limit ribs junction Isolation board.

Further, after the refined filtration snap-gauge is connected to refined filtration plate, the two of the separation block are completely covered in the isolation board Side, with guide mist of oil fully flow into the vertical gap rib with separate between block.

Further, the card slot, isolation board, the first limit ribs, the second limit ribs are shaped in the refined filtration On plate.

Further, refined filtration board bottom portion is extended with the pedestal vertical with the refined filtration plate, the essence toward interior direction Filter snap-gauge, which is connected to after refined filtration plate between the pedestal, has spacing.

Further, the pedestal and the refined filtration plate are integrally formed.

Further, the pedestal is equipped with several mounting holes, mist of oil separation fine filtering device to be fixed to For in the valve cap of reciprocating piston internal combustion engine and being configured to oil gas separator.

Further, the pedestal is additionally provided with the fixed plate parallel with the refined filtration plate far from the side of the refined filtration plate.

Further, the separation block uses non-woven fabrics, felt, the PET block of strip, and the material of the non-woven fabrics is modeling Expect at least one of fiber, mineral fibres, metallic fiber, wire mesh.

Further, the hole location on the orifice plate is at least partly connected to setting with the gap of the vertical gap rib.

Further, the refined filtration plate, refined filtration snap-gauge are configured to plastic injection piece.

Further, bottom gap transverse bar setting corresponding with vertical gap rib, per two adjacent bottom transverses Gap between muscle is 3mm-5mm.

Further, the mist of oil flows out to stroke between separation block, by the separation that is formed of separation block from orifice plate Gap between the vertical rib quantity of face and the vertical gap rib, every adjacent upright rib, separate the material of block with It is selected such as under type, that is, so that producing the flowing for generating air-flow for mist of oil between block with described separate in the orifice plate Path is approximately orthogonal to the vertical gap rib distribution.

Further, vertical gap rib height measured on the direction perpendicular with the mist of oil flow path Vertical rib quantity, the every adjacent upright rib of degree, the parting surface and the vertical gap rib that are formed by the separation block Between gap, the aperture of hole location on the orifice plate, the hole location on the orifice plate and between every adjacent upright rib Relative position between gap, the material for separating block select as follows, that is, so that gas part in mist of oil is from described It is flowed out between separation block and refined filtration plate and the path of outflow is approximately parallel to the vertical gap rib.

Further, the first side rib, second side rib end be respectively provided with the first engaging boss, second Engage boss, first button bit, the second button bit are respectively provided with corresponding for the first engaging boss, the second engaging boss cooperation The first concave portion, the second concave portion fastened.

Further, first button bit, the second button bit end be respectively provided in protrusion domatic the first holding part, Second holding part, the first side rib, second side rib front end be respectively provided with it is corresponding for first holding part, the The first support division, the second support division that the cooperation of two holding parts fastens.

This case provides one kind for the refined filtration structure of oil mist separation system in the valve cap of automobile reciprocating piston internal combustion engine can Row scheme, separation block are put into the cavity of refined filtration snap-gauge, then will joined the refined filtration snap-gauge after separating block by buckle structure It is interlocked and links together with refined filtration plate, surrounding is fixed by various limit ribs, is allowed to sound construction, can efficiently be divided From the gentle body portion in oil droplet part in mist of oil, at the same have long-term work is stable, structure is simple, production process is few, manufacture at The features such as this is low, good separating effect, improves production efficiency, enhances competitiveness.

According to the accompanying drawings to the detailed description of the utility model specific embodiment, those skilled in the art will be more Add the above-mentioned and other purposes, advantages and features of clear the utility model.

Detailed description of the invention

Some specific realities of the utility model are described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter Apply example.Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that The drawings are not necessarily drawn to scale.In attached drawing:

Fig. 1 is the schematic diagram of the mist of oil separation fine filtering device of an embodiment of the present invention；

Fig. 2 is the schematic diagram of the refined filtration snap-gauge in the mist of oil separation fine filtering device of an embodiment of the present invention；

Fig. 3 is the schematic diagram of the mist of oil separation fine filtering device of another embodiment of the utility model；

Fig. 4 is that the mist of oil separation fine filtering device of the utility model embodiment shown in FIG. 1 is connected to refined filtration in refined filtration snap-gauge Diagrammatic cross-section when plate.

Specific embodiment

As shown in Figure 1, present embodiments providing a kind of mist of oil separation fine filtering device 100, comprising: refined filtration plate 10, refined filtration card Plate 20, separation block 30, wherein

Refined filtration plate 10 is equipped with the orifice plate 11 flowed into inwardly to mist of oil by its outside, and 11 inside both ends of orifice plate are respectively equipped with For limiting the first limit ribs 12, second limit moved on mist of oil inflow direction when separation block 30 is placed in refined filtration snap-gauge 20 Position rib 13 and top are equipped with for limiting the direction flowed into when separation block 30 is placed in refined filtration snap-gauge 20 perpendicular to mist of oil The third limit ribs 14 of upper movement.

As shown in Fig. 2, refined filtration snap-gauge 20 includes for accommodating the cavity 21 of separation block 30 and surrounding the baffle of cavity 21 22, bottom gap transverse bar 23, that a row is furnished at face refined filtration plate 10 is vertical to guide the mist of oil flowed into from orifice plate 11 to flow to Gap rib 24, mist of oil flow out to the stroke between separation block 30 from orifice plate 11 as the vertical with orifice plate 11 of vertical gap rib 24 Width on direction, region of the baffle 22 in mist of oil flow direction at least after the edge flow direction of baffle 22 is in separation 30 region of block In it is at least substantially air-locked.Refined filtration snap-gauge 20 is just fully wrapped around to be lived to separate block 30, and is separated block 30 and be just fitted in refined filtration card The baffle 22 of plate 20, bottom gap transverse bar 23, between vertical 24 inner wall of gap rib, that is to say, that the size of separation block 30 with The cavity 21 of refined filtration snap-gauge 20 matches, neither wasting space, leakproofness it is also ensured that, guarantee enter mist of oil completely into On separation block 30 in refined filtration snap-gauge 20.

There is the first side rib having respectively with 22 both sides of baffle on first limit ribs 12, the second limit ribs 13 221, second side rib 222 forms the first button bit 121, the second button bit 131 of buckle structure, and refined filtration snap-gauge 20 passes through buckle knot Structure is detachably connected with baffle 22.First button bit 121, the second button bit 131 are incorporated in the first limit ribs 12, the second limit rib On item 13, space, easy disassembly are saved.

The mounting means of this case mist of oil separation fine filtering device 100 is: separation block 30 is first put into the cavity of refined filtration snap-gauge 20 21, the refined filtration snap-gauge 20 after joined separation block 30 is interlocked by buckle structure with refined filtration plate 10 then and is linked together, Surrounding is fixed by various limit ribs.Working principle is: mist of oil is from the 11 inside effluent in outside of orifice plate on refined filtration plate 10 Enter, that is, the direction from right to left in Fig. 1 flows into, afterwards by being impinged upon after vertical gap rib 24 on separation block 30, gas Body portion is flowed out between separation block 30 and refined filtration plate 10, and the oil droplet part in mist of oil is from separation block 30 due to striking separation block On 30, then dripped from the bottom of refined filtration snap-gauge 20.Pass through the quantity and/or sky of the vertical gap rib 24 on refined filtration snap-gauge 20 Between on arrangement and/or size setting can be limited (on the direction perpendicular to orifice plate 11) and enduringly maintain separation block 30 Material and orifice plate 11 hole between desired spacing and gap, and by surrounding limit rib come fixedly separated piece 30, without increasing additional construction so that the mode that a part in refined filtration plate 10 is passed through from separation block 30 can fix, keep away Exempt from due to passing through separation block 30 to which perforation leads to the problem of mist of oil leakage, leakproofness deficiency.Baffle 22 is air-locked.

This case provides one kind for the refined filtration structure of oil mist separation system in the valve cap of automobile reciprocating piston internal combustion engine can Row scheme can efficiently separate the gentle body portion in oil droplet part in mist of oil, while have long-term work stabilization, structure letter Singly, the features such as production process is few, manufacturing cost is low, good separating effect, improves production efficiency, enhances competitiveness.

Top, the lower part of 10 two sides of refined filtration plate are respectively equipped with card slot 15, and top, the lower part of vertical gap rib 24 are set respectively There is the detent portion 25 vertical in vertical gap rib 24, detent portion 25 corresponds and protrudes into and cooperate card slot 15, to pre-qualified Refined filtration snap-gauge 20 is connected to the position on refined filtration plate 10, which can first find refined filtration card accurately before buckle structure is fixed Relative position on plate 20 and filter plate 10, detent portion 25 is protruded into card slot 15, so that the pre-qualified position, is convenient for buckle structure Further fix so that refined filtration snap-gauge 20 connect with filter plate 10 it is more convenient, close.

The direction that the card slot 15 on the top of 10 two sides of refined filtration plate is open is opposite, and the direction that the card slot 15 of lower part is open is opposite, The opening direction of card slot 15 be it is corresponding with the structure in detent portion 25, be it is inwardly open, have save space, connection side Just the features such as.

After refined filtration snap-gauge 20 is connected to refined filtration plate 10, the vertical gap rib 24 of a row of refined filtration snap-gauge 20 and refined filtration plate 10 Medial surface fits, so that the gas part in mist of oil is flowed out between separation block 30 and refined filtration plate 10, the oil droplet portion in mist of oil The bottom from separation block 30 is divided to drip.That is, mist of oil all enters refined filtration snap-gauge 20 from vertical gap rib, due to separation Block 30 is to have blocked the gentle body portion in oil droplet part, therefore gas part is flowed out between separation block 30 and refined filtration plate 10, also It is to be discharged upwards from vertical gap rib 24, the oil droplet part in mist of oil separates on block 30 from separation block 30 due to striking, Also cause certain coalescence effect in the case where the particle formed by liquid droplet, due to the coalescence effect, subtle and pole Then subtle droplet coalescence drips from the bottom of refined filtration snap-gauge 20 at biggish droplet, thus improves separating effect.

In the vertical gap rib 24 of one row of refined filtration snap-gauge 20, the gap between every two adjacent vertical ribs is 3mm- 5mm.Orifice plate 11 is equipped with a large amount of hole, the diameter of this some holes in particular about 2mm, which is 3mm-5mm, is just slightly greater than Hole can make the mist of oil of access aperture fully flow into vertical gap rib 24.

10 two sides of refined filtration plate are being respectively provided with isolation board with the first limit ribs 12,13 junction of the second limit ribs 16, which is to prevent mist of oil from overflowing, and the first limit ribs 12, the second limit ribs 13 are that be connected to isolation board 16 convex A part out.

After refined filtration snap-gauge 20 is connected to refined filtration plate 10, the two sides of separation block 30 are completely covered in isolation board 16, to guide mist of oil Fully flow into vertical gap rib 24 with separate between block 30.

Card slot 15, isolation board 16, the first limit ribs 12, the second limit ribs 13 are shaped on refined filtration plate 10, and one Body formed structure simplifies processing technology, and it is more solid and reliable to have saved cost, structure.

As shown in figure 3,10 bottom of refined filtration plate is extended with the pedestal 17 vertical with refined filtration plate 10, refined filtration snap-gauge toward interior direction 20 are connected to after refined filtration plate 10 between pedestal 17 with spacing, which is to dispose receiving from the bottom of refined filtration snap-gauge 20 The recyclable device of portion's drippage, to have certain space to carry out placement recyclable device.

Pedestal 17 and refined filtration plate 10 are integrally formed, and integrally formed structure simplifies processing technology, saved cost, structure More solid and reliable, which is also to support entire mist of oil separation fine filtering device 100.

Pedestal 17 is equipped with several mounting holes 171, is used for mist of oil separation fine filtering device 100 to be fixed to toward resurrection In the valve cap of piston type internal-combustion engine and it is configured to oil gas separator, mounting hole 171 is used for entire mist of oil separation refined filtration dress Set the connection installation in 100 and automobile between other components.

Pedestal 17 is additionally provided with the fixed plate 172 parallel with refined filtration plate 10 far from the side of refined filtration plate 10, the fixed plate be for Match with the structure in the valve cap of reciprocating piston internal combustion engine, it is easy for installation in order to connect.

(polyethylene terephthalate, chemical formula are non-woven fabrics, felt, the PET block of the separation use strip of block 30 COC6H4COOCH2CH2O；Polyethylene terephthalate, abbreviation PET), PET block refers to by poly terephthalic acid The block insensitive to engine oil and gas leakage that glycol ester material is formed, the material of the non-woven fabrics are plastic optical fibre, mineral At least one of fiber, metallic fiber, wire mesh, that is, smooth rectangular parallelepiped form, separation block 30 can use sheep Hair, PET stock material are also possible to fabric nonwoven cloth composition, wherein the fiber of fabric nonwoven cloth should be to engine oil and gas leakage At least one of insensitive plastic optical fibre, mineral fibres, metallic fiber, wire mesh.

Hole location 111 on orifice plate 11 is at least partly connected to setting with the gap of vertical gap rib 24, is that fuel feeding spray enters, And preferably fully flow into, it is therefore desirable to which the gap of vertical gap rib 24 is connected with the hole location 111 on orifice plate 11.

Refined filtration plate 10, refined filtration snap-gauge 20 are configured to plastic injection piece, preferably, it is so structured that nylon injection-molding part, Fire retardant can be added in nylon material to be molded, there is flame retarding function, since plastic injection piece has certain elasticity, Can occur certain deformation, thus above-mentioned buckle structure can dismantle it is easy for installation.Refined filtration plate 10, the refined filtration card of the material Plate 20 has many advantages, such as dimensional stability, and black brittleness, heat resistance and wearability.

The setting corresponding with vertical gap rib 24 of bottom gap transverse bar 23, between two adjacent bottom transverse bars Gap is 3mm-5mm, bottom gap transverse bar 23 and vertical gap rib 24 be it is one-to-one, can be integrated, then roll over Curved perpendicular shape forms bottom gap transverse bar 23, vertical gap rib 24, and technique simplifies.

Mist of oil from orifice plate 11 flow out to the stroke between separation block 30, the parting surface that is formed by separation block 30 and it is vertical between The material in gap, separation block 30 between the vertical rib quantity of gap rib 24, every adjacent upright rib is selected as follows Select, that is, so that orifice plate 11 with it is described separate produced between block 30 for mist of oil generate air-flow flow path it is approximately perpendicular It is distributed in vertical gap rib 24.

The height measured on the direction perpendicular with mist of oil flow path of vertical gap rib 24 separates block by described Gap, orifice plate between the vertical rib quantity of 30 parting surfaces formed and vertical gap rib 24, every adjacent upright rib Aperture, the hole location 111 on orifice plate 11 and the opposite position between the gap between every adjacent upright rib of hole location 111 on 11 The material for setting, separating block 30 selects as follows, that is, so that gas part in mist of oil from separation block 30 and refined filtration plate it Between flow out and outflow path be approximately parallel to the vertical gap rib 24.

As shown in figure 4, the end of first side rib 221, second side rib 222 is respectively provided with the first engaging boss 2211, the second engaging boss 2221, the first button bit 121, the second button bit 131 be respectively provided with it is corresponding for the first engaging boss 2211, The first concave portion 1211, the second concave portion 1212 that the second engaging cooperation of boss 2221 fastens.First side rib 221, second It is to be respectively protruding into the first concave portion 1211, that first engaging boss 2211, second of 222 end of side rib, which engages boss 2221, It is fastened in two concave portions 1212.

First button bit 121, the second button bit 131 end be respectively provided with the first holding part 1212 of the domatic in protrusion, the Two holding parts 1312, first side rib 221, second side rib 222 front end be respectively provided with it is corresponding for the first holding part 1212, the first support division 2212, the second support division 2222 that the cooperation of the second holding part 1312 fastens.First side rib 221, The first support division 2212, the second support division 2222 of 222 front end of two side faces rib are round and smooth recessed, are being in respectively the slope of protrusion First holding part 1212 of shape, the cooperation of the second holding part 1312 support under effect, make the first side rib with certain elastic force 221, second side rib 222 is located on refined filtration plate 10, so that 10 liang of refined filtration snap-gauge 20, refined filtration plate components are assembled in together. It is after two component connection buckles and demountable by the elastic force of each plastic assembly.

So far, although those skilled in the art will appreciate that the more of the utility model have been shown and described in detail herein A exemplary embodiment still, still can be according to the utility model public affairs in the case where not departing from the spirit and scope of the utility model The content opened directly determines or derives many other variations or modifications for meeting the utility model principle.Therefore, this is practical new The range of type is understood that and regards as to cover all such other variations or modifications.

Claims (19)

1. a kind of mist of oil separates fine filtering device characterized by comprising refined filtration plate, refined filtration snap-gauge, separation block, wherein

The refined filtration plate is equipped with the orifice plate flowed into inwardly to mist of oil by its outside, and both ends are respectively equipped with use on the inside of the orifice plate In limit it is described separation block be placed in the refined filtration snap-gauge when mist of oil inflow direction on move the first limit ribs, second limit Position rib and top are equipped with for limiting the side flowed into when the separation block is placed in the refined filtration snap-gauge perpendicular to mist of oil The third limit ribs moved up；

The refined filtration snap-gauge includes for accommodating the cavity for separating block and surrounding the baffle of the cavity, bottom gap A row is furnished at transverse bar, face refined filtration plate to the vertical gap rib for guiding the mist of oil flowed into from orifice plate to flow to, mist of oil is from hole The stroke that plate flows out between separation block be vertical gap rib with the width in the orifice plate vertical direction, the baffle exists In mist of oil flow direction at least along the region after the baffle is in the separation block region along the flow direction at least base It originally is air-locked；

On first limit ribs, the second limit ribs have have respectively with the baffle both sides first side rib, Second side rib forms the first button bit, the second button bit of buckle structure, and the refined filtration snap-gauge passes through the buckle structure and institute Baffle is stated to be detachably connected.

2. mist of oil as described in claim 1 separates fine filtering device, it is characterised in that: top, the lower part of refined filtration plate two sides It is respectively equipped with card slot, top, the lower part of the vertical gap rib are respectively equipped with the detent vertical in the vertical gap rib Portion, the detent portion correspond and protrude into and cooperate the card slot, be connected on refined filtration plate to the pre-qualified refined filtration snap-gauge Position.

3. mist of oil as claimed in claim 2 separates fine filtering device, it is characterised in that: the card slot on the top of refined filtration plate two sides The direction of opening is opposite, and the direction of the card slot opening of lower part is opposite.

4. mist of oil as claimed in claim 3 separates fine filtering device, it is characterised in that: the refined filtration snap-gauge is connected to refined filtration plate Afterwards, the vertical gap rib of a row of the refined filtration snap-gauge and the medial surface of refined filtration plate fit, so that the gas in the mist of oil Part is flowed out between the separation block and refined filtration plate, and the oil droplet part in mist of oil is dripped from the bottom of the separation block.

5. mist of oil as claimed in claim 4 separates fine filtering device, it is characterised in that: the vertical gap of a row of the refined filtration snap-gauge In rib, the gap between every two adjacent vertical ribs is 3mm-5mm.

6. mist of oil as claimed in claim 4 separates fine filtering device, it is characterised in that: refined filtration plate two sides are limited with first Position rib, the second limit ribs junction are respectively provided with isolation board.

7. mist of oil as claimed in claim 6 separates fine filtering device, it is characterised in that: the refined filtration snap-gauge is connected to refined filtration plate Afterwards, the two sides of the separation block are completely covered in the isolation board, to guide mist of oil to fully flow into the vertical gap rib and divide From between block.

8. mist of oil as claimed in claims 6 or 7 separates fine filtering device, it is characterised in that: the card slot, isolation board, the first limit Position rib, the second limit ribs are shaped on the refined filtration plate.

9. mist of oil as described in claim 1 separates fine filtering device, it is characterised in that: refined filtration board bottom portion prolongs toward interior direction Stretching has the pedestal vertical with the refined filtration plate, and the refined filtration snap-gauge, which is connected to after refined filtration plate between the pedestal, has spacing.

10. mist of oil as claimed in claim 9 separates fine filtering device, it is characterised in that: the pedestal and refined filtration plate one Molding.

11. the mist of oil as described in claim 9 or 10 separates fine filtering device, it is characterised in that: the pedestal is equipped with several Mounting hole is used in the valve cap of reciprocating piston internal combustion engine and constructs mist of oil separation fine filtering device to be fixed to For oil gas separator.

12. the mist of oil as described in claim 9 or 10 separates fine filtering device, it is characterised in that: the pedestal is far from the refined filtration The side of plate is additionally provided with the fixed plate parallel with the refined filtration plate.

13. mist of oil as described in any one of claims 1 to 3 separates fine filtering device, it is characterised in that: the hole location on the orifice plate Setting is at least partly connected to the gap of the vertical gap rib.

14. mist of oil as described in any one of claims 1 to 3 separates fine filtering device, it is characterised in that: the refined filtration plate, refined filtration Snap-gauge is configured to plastic injection piece.

15. mist of oil as described in any one of claims 1 to 3 separates fine filtering device, it is characterised in that: the bottom gap transverse bar Setting corresponding with vertical gap rib, often the gap between two adjacent bottom transverse bars is 3mm-5mm.

16. mist of oil as described in claim 1 separates fine filtering device, it is characterised in that: the mist of oil flows out to separation from orifice plate Vertical rib quantity, the every phase of stroke, the parting surface and the vertical gap rib that are formed by the separation block between block The material in gap, separation block between adjacent vertical rib selects as follows, that is, so that separating in the orifice plate with described The flow path for generating air-flow for mist of oil is produced between block is approximately orthogonal to the vertical gap rib distribution.

17. mist of oil as described in claim 1 separates fine filtering device, it is characterised in that: the vertical gap rib with it is described Measured height on the perpendicular direction of mist of oil flow path, the parting surface formed by the separation block and it is described vertically between Gap between the vertical rib quantity of gap rib, every adjacent upright rib, the aperture of the hole location on the orifice plate, the orifice plate On hole location and every adjacent upright rib between gap between relative position, separate the material of block and come as follows Selection, that is, so that the gas part in mist of oil is about parallel from the path flowed out and flowed out between the separation block and refined filtration plate In the vertical gap rib.

18. mist of oil as described in claim 1 separates fine filtering device, it is characterised in that: the first side rib, second side The end of rib is respectively provided with the first engaging boss, the second engaging boss, and first button bit, the second button bit are respectively provided with correspondence The first concave portion, the second concave portion fastened for the first engaging boss, the second engaging boss cooperation.

19. mist of oil as claimed in claim 18 separates fine filtering device, it is characterised in that: first button bit, the second button bit End is respectively provided with the first holding part, the second holding part of the domatic in protrusion, the first side rib, second side rib Front end be respectively provided with corresponding the first support division, the second support division fastened for first holding part, the cooperation of the second holding part.