CN203559960U - Oil mist separator - Google Patents
Oil mist separator Download PDFInfo
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- CN203559960U CN203559960U CN201320656427.8U CN201320656427U CN203559960U CN 203559960 U CN203559960 U CN 203559960U CN 201320656427 U CN201320656427 U CN 201320656427U CN 203559960 U CN203559960 U CN 203559960U
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- mentioned
- oil
- holding part
- oily holding
- stream
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M13/0416—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in valve-covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0433—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a deflection device, e.g. screen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/045—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil using compression or decompression of the gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0461—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a labyrinth
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
The utility model provides an oil mist separator which can prevent separated oil and leak gas from being jointly taken away downstream. The oil mist separator comprises a first opening, an oil separation part, an oil drain part and a second opening, wherein the first opening allows gas to flow into a flow path; the oil separation part is used for separating oil from gas; the oil drain part is used for draining oil separated by the oil separation part; and the second opening is used for exhausting gas from the oil path. A plurality of oil retaining parts which are arranged along the oil path and used for preventing separated oil from flowing downstream are arranged on the upper surface of a bottom plate located between the oil drain part and the second opening. Gaps are formed between two sides of each oil retaining part and two side walls of a cylinder head cover respectively. One gap between two sides of one oil retaining part is larger than another one between two sides of another oil retaining part, and larger gap positions of the adjacent oil retaining parts are mutually different.
Description
Technical field
The utility model relates to a kind of oil mist separator.Say in further detail, relate to a kind of can suppress isolated oil together with gas leakage by side entrained oil mist separator downstream.
Background technique
All the time, be known to the firing chamber from internal-combustion engine to import to the gas leakage of crankcase portion internal leakage via the gap between piston and cylinder body the positive crankcase of the PCV(portion ventilation of gas handling system) system.This PCV system by the gas leakage as unburnt gas being sent into again to the contained propellant composition that prevents from leaking gas in firing chamber, carbon monoxide is discharged in atmosphere.
But, in gas leakage, be vaporific containing being useful on the oil component that combustion motor is lubricated, if make, contain the gas leakage burning of the state of this oil component, can produce the minimizing of lubricants capacity, the problems such as generation of the white cigarette that caused by the burning of oil component.Therefore, be known to arrange oil mist separator in PCV system and carry out the contained vaporific oily technology of separate blow-by gas (for example,, with reference to patent documentation 1).
Prior art document
Patent documentation
Patent documentation 1: Japan opens clear 60-175810 communique in fact
In above-mentioned patent documentation 1, make crash panel from erect arranging from the diapire of the process chamber of the processing of gas leakage separating oil for carrying out, by making gas leakage circulate separating oil to this process chamber.Isolated oil is discharged from being arranged on the oily return port of the front side of each crash panel.In addition, in patent documentation 1, crash panel is set to upstream side, closed end that its opening end is positioned at the direct of travel of gas leakage and is positioned at downstream side, oily return port is formed to the diapire of side in front of closed end.In this case, when produced from the gas leakage of oily return port refluence time, utilize the gas leakage of ejection and spray on the oil that makes to assemble, likely by side downstream, taken away together with gas leakage.Therefore, require a kind of technology that can further improve oily reuse efficiency.
Model utility content
The problem that model utility will solve
The utility model is made in view of above-mentioned present situation, its object be to provide a kind of can suppress isolated oil together with gas leakage by side entrained oil mist separator downstream.
For the scheme of dealing with problems
In order to address the above problem a little, the purport of the model utility described in technological scheme 1 is to provide a kind of oil mist separator, and it is arranged at the PCV system of internal-combustion engine, wherein,
By utilizing the formed opening of above-mentioned lower surface opening of the valve mechanism cover of base plate shutoff lower surface opening, thereby form the stream at internal circulation for gas leakage,
In above-mentioned stream, from upstream side, comprise successively:
The 1st opening, it is for flowing in above-mentioned stream above-mentioned gas leakage;
Oil separation part, it is for from above-mentioned gas leakage separating oil;
Draining portion, it utilizes the isolated oil of above-mentioned oil separation part for discharging; And
The 2nd opening, it for discharging above-mentioned gas leakage in above-mentioned stream;
In the part between above-mentioned draining portion and above-mentioned the 2nd opening of the upper surface of above-mentioned base plate, form and a plurality ofly for stoping, utilize the isolated oil of the above-mentioned oil separation part oily holding part that effluent goes out downstream with above-mentioned base plate,
The mode that above-mentioned oily holding part is aligned to above-mentioned downstream with the above-mentioned upstream side from above-mentioned stream configures;
Be configured to be formed with respectively gap between the both sides of each above-mentioned oily holding part and the two side of above-mentioned valve mechanism cover,
One in the above-mentioned gap of the both sides of each above-mentioned oily holding part is larger than another one,
In oily holding part in above-mentioned a plurality of oily holding parts and other oily holding parts adjacent with an above-mentioned oily holding part, the position in the larger above-mentioned gap at the position in the larger above-mentioned gap at an above-mentioned oily holding part place and other above-mentioned oily holding part places is staggered.
The purport of the model utility described in technological scheme 2 is, according to technological scheme 1, above-mentioned oily holding part forms overlooks roughly U word shape, and forms the upstream side opening towards above-mentioned stream.
The purport of the model utility described in technological scheme 3 is, according to technological scheme 2, the upstream side of the end of a side that forms littlely in the above-mentioned gap of above-mentioned oily holding part is provided with guide plate, the mode that this guide plate extends with the interior side direction from above-mentioned two side to above-mentioned stream forms, for guiding above-mentioned isolated oil to above-mentioned oily holding part.
The purport of the model utility described in technological scheme 4 is, according to technological scheme 2, the end of side in the end of above-mentioned oily holding part, that above-mentioned gap forms is greatlyr positioned at the position of the end downstream of the side that forms littlely than above-mentioned gap.
The purport of the model utility described in technological scheme 5 is, according to technological scheme 3, the upper-end surface of above-mentioned oily holding part tilts in the mode raising towards above-mentioned downstream side from above-mentioned upstream side.
The purport of the model utility described in technological scheme 6 is, according to technological scheme 3, above-mentioned oil mist separator also has on the flow direction of above-mentioned gas leakage the upper end portion of adjacent above-mentioned guide plate connecting plate connected to one another, and the mode that above-mentioned connecting plate extends to the interior side direction of above-mentioned stream with the upper wall from above-mentioned valve mechanism cover forms.
The effect of model utility
According to oil mist separator of the present utility model, by utilizing the opening of the valve mechanism cover of base plate shutoff lower surface opening, thereby form the stream at internal circulation for gas leakage.In stream, from upstream side, comprise successively: the 1st opening, it is for flowing in stream gas leakage; Oil separation part, its for from gas leakage separating oil; Draining portion, it utilizes the isolated oil of oil separation part for discharging; And the 2nd opening, it for discharging gas leakage in stream.On the upper surface of the base plate between draining portion and the 2nd opening, form and a plurality ofly for stoping, utilize the isolated oil of the oil separation part oily holding part that effluent goes out downstream with base plate, the mode that oily holding part is aligned to downstream side with the upstream side from stream configures.Be configured to be formed with respectively gap between the both sides of each oily holding part and the two side of valve mechanism cover, the one in the gap of the both sides of each oily holding part is larger than another one.And in oily holding part in oily holding part and other oily holding parts adjacent with oily holding part, the position in the larger gap at the position in the larger gap at an oily holding part place and other oily holding part places differs from one another.
According to this structure, even if the oil spill being stoped by oily holding part goes out, also can utilize the oily holding part in a downstream to stop.Its result, can suppress isolated oil mobile to the direction of stream.In addition, the position that is set to larger gap due to a plurality of oily holding parts differs from one another, and therefore can effectively bring into play oily holding part to oily prevention function.And, by oily holding part, be arranged at the upper surface of base plate, thereby can suppress the flowing of gas leakage of base plate vicinity, can suppress oil and by side downstream, be taken away because of the mobile impact of gas leakage.
In addition, in the situation that oily holding part forms, overlook roughly U word shape and form the upstream side opening towards stream, can make the oil mobile towards the downstream side of stream enter the inner side of U word shape and be detained from the opening of oily holding part.Thus, can further effectively stop oil downstream effluent go out.Its result, can suppress oil and be taken away by side downstream.
And, in the situation that the upstream side of the end of the oily holding part of the side that gap forms is littlely provided with that the mode of extending to the interior side direction of stream with the sidewall from valve mechanism cover forms and for guiding oily guide plate to oily holding part, can utilize guide plate to stop along the sidewall of the valve mechanism cover oil of side flow downstream, and can be to oily holding part side guiding.Thus, can further effectively stop oil downstream effluent go out.Its result, can suppress oil and be taken away by side downstream.
In addition, the end of oil holding part is in the situation that the end of the side that gap forms is greatlyr positioned at the position of the end downstream of the side that ratio gap forms littlely, when the oil spill being stoped by oily holding part goes out, can make the tip side of the oily holding part of the oily side that forms greatlyr from gap overflow.Thus, can utilize the oily holding part in a downstream to stop reliably the oil overflowing, can suppress oil and be taken away by side downstream.
And, in the situation that the upper-end surface of oily holding part tilts in the mode raising towards downstream side from upstream side, or in the situation that the mode inclination that oil mist separator reduces with the downstream side towards stream etc. can keep comparably with upstream side the prevention ability in the downstream side of oily holding part.Thus, can utilize the inhibition oil such as inclination to overflow from the upper end, downstream side of oily holding part, can stop reliably oil.
The utility model has been enumerated the indefiniteness example of typical mode of execution of the present utility model, and the detailed description with reference to mentioned a plurality of accompanying drawings and below utilizing further describes, and identical reference character represents identical parts in several accompanying drawings.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of embodiment's oil mist separator.
Fig. 2 is the I-I line sectional view of Fig. 1.
Fig. 3 is the enlarged view in the II-II line cross section of Fig. 1.
Fig. 4 is the partial cutaway exploded perspective view of embodiment's oil mist separator.
Fig. 5 means the stereogram of embodiment's base plate.
Fig. 6 is the major component enlarged view of embodiment's oil mist separator.
Fig. 7 means the partial cutaway stereogram of embodiment's valve mechanism cover.
Embodiment
The item is here exemplary item and for the item of mode of execution of the present utility model is described illustratively, and the object of above-mentioned item be to provide can be most effectively and easily understand the explanation of principle of the present utility model and conceptional features.Based on this point, this specification is not in order to make those skilled in the art fundamentally understand the utility model, to exceed desirability to represent the specification of detailed structure of the present utility model, but utilizes the explanation combining with accompanying drawing to make those skilled in the art know that how to realize in practice several technological scheme of the present utility model.
The oil mist separator of present embodiment (1) is the oil mist separator that is arranged at the PCV system of internal-combustion engine.Oil mist separator is by utilizing the opening of the valve mechanism cover (3) of base plate (5) shutoff lower surface opening to be formed with the stream (7) at internal circulation for gas leakage.On stream, from upstream side comprise successively for make gas leakage flow into the 1st opening (9) in stream, for the oil separation part (11) from gas leakage separating oil, utilize the draining portion (13) of the isolated oil of oil separation part and for discharge the 2nd opening (15) of gas leakage in stream for discharging.
On the upper surface of the base plate between draining portion and the 2nd opening, form to be useful on to stop with base plate and utilize the isolated oil of the oil separation part a plurality of oily holding part that effluent goes out downstream (17,19,21).The mode that oil holding part is aligned to downstream side with the upstream side from stream configures, and is configured to be formed with respectively gap (G1, G2) between the both sides of each oily holding part and the two side of valve mechanism cover (35).In addition, one in the gap of the both sides of each oily holding part is larger than another one, in oily holding part in oily holding part and other oily holding parts adjacent with oily holding part, the position in the larger gap at the position in the larger gap at an oily holding part place and other oily holding part places differs from one another.
Above-mentioned a plurality of oily holding part is set to cross over respectively the center of the width direction of stream conventionally.The shape of oil holding part is not specially limited, for example, can be to overlook roughly U word shape (for example,, with reference to Fig. 1, Fig. 5, Fig. 6 etc.), roughly V-shape, W word shape etc. roughly.In these cases, oily holding part forms its opening conventionally towards the upstream side opening of stream.
Oil mist separator as present embodiment, the upstream side of end (E2) that for example can be set forth in the above-mentioned oily holding part of the side that above-mentioned gap forms is littlely provided with that the mode of extending to the interior side direction of stream with the sidewall from valve mechanism cover forms and for the mode (for example,, with reference to Fig. 1～Fig. 3, Fig. 7 etc.) to the guide plate of above-mentioned oily holding part guiding by isolated oil.Above-mentioned guide plate spreads all over from the upper wall (43) of above-mentioned valve mechanism cover the upper surface that is arranged at the base plate that forms above-mentioned stream conventionally.
Oil mist separator as present embodiment, for example can enumerate in the end (E1, E2) of above-mentioned oily holding part, and above-mentioned sidewall between the end (E1) that forms greatlyr a side, gap be positioned at the mode (for example,, with reference to Fig. 6 etc.) of position of end (E2) downstream of the side that ratio gap forms littlely.
As the oil mist separator of present embodiment, the mode (for example,, with reference to Fig. 2, Fig. 3, Fig. 5 etc.) that the upper-end surface that for example can enumerate above-mentioned oily holding part tilts in the mode raising towards above-mentioned downstream side from above-mentioned upstream side.The angle of above-mentioned inclination is not particularly limited, for example, consider the oil mist separator self of supposition angle of inclination, act on the inertial force of oil mist separator etc., so long as the angle that the oil being prevented from can not overflow from upper-end surface, downstream side.
Oil mist separator as present embodiment, for example can enumerate be provided with that the mode of extending to the interior side direction of stream with the upper wall from above-mentioned valve mechanism cover forms and on the flow direction of gas leakage by the mode of the upper end portion of adjacent above-mentioned guide plate connecting plate connected to one another (45,47) (for example,, with reference to Fig. 1～Fig. 3, Fig. 7 etc.).
[embodiment]
Below, use accompanying drawing and utilize embodiment to specifically describe the utility model.In addition, in the present embodiment, exemplified with the oil mist separator that is arranged at the PCV system of internal combustion engine for vehicle.
(1) structure of oil mist separator
As shown in Figure 1 to 4, the oil mist separator 1 of the present embodiment is by utilizing the opening of the valve mechanism cover 3 of base plate 5 shutoff lower surface openings to be formed with the stream 7 at internal circulation for gas leakage.In addition, in the present embodiment, base plate 5 welding be fixed on valve mechanism cover 3 by vibration welded.
As depicted in figs. 1 and 2, in stream 7, dispose for make gas leakage flow into the 1st opening 9 in stream 7, for the oil separation part 11 from gas leakage separating oil, utilize the draining portion 13 of oil separation part 11 isolated oil and for the 2nd opening 15 from the interior discharge gas leakage of stream 7 for discharging.In addition, between draining portion 13 and the 2nd opening 15, have for stoping isolated oil a plurality of (being 3 at Fig. 1 and Fig. 2) oily holding part 17,19,21 that effluent goes out downstream.
As depicted in figs. 1 and 2, the 1st opening 9 is arranged at a tip side of stream 7.The 1st opening 9 runs through base plate 5 ground and forms.This is that oil in order to make separation and to be stranded in the upper surface of base plate 5 refluxes via the 1st opening 9.
As depicted in figs. 1 and 2, oil separation part 11 is arranged at the downstream side of the 1st opening 9, comprises the portion of wriggling (Japanese: 23 and impactor portion (Japanese: 25 portion of crawling) イ Application パ Network タ portion).A plurality of (being two in Fig. 1 and Fig. 2) baffle plate 27,29 that the mode that portion 23 comprises that the alternatively up and down of take from stream 7 extends of wriggling arranges, by making to leak gas, wriggling movement circulation carry out inertial separation oil.Impactor portion 25 comprises that the demarcation strip 31 that is formed with through hole and the mode with relative with this demarcation strip 31 are arranged at the crash panel 33 in the downstream side of demarcation strip 31, and crash panel 33 is clashed in the gas leakage that has increased flow velocity by through hole, thereby inertial separation is oily.
As shown in Figure 2 and Figure 5, draining portion 13 forms tubular in the mode of extending from base plate 5 downwards, and in its bottom, is formed with the little hole of sectional area of the tubular part of sectional area ratio.Thus, in draining portion 13, accumulate and have the oil that is split into its inside, and overcome the pressure in stream 7 and discharge to outside when oil is accumulated the height of regulation.
As depicted in figs. 1 and 2, the 2nd opening 15 is arranged on the tip side contrary with the tip side of stream 7 that is provided with the 1st opening 9.The sidewall 35 that the 2nd opening 15 runs through valve mechanism cover 3 forms.In addition, as shown in Figure 2, the 2nd opening 15 is arranged on the position of leaving upward from base plate 5.This is that oil in order to suppress separated and to be stranded in the upper surface of base plate 5 is discharged from the 2nd opening 15 together with gas leakage.
As shown in Figure 5, oily holding part 17,19,21 and base plate 5 are integrally formed in the upper surface of base plate 5.As shown in Figure 6, the mode that oily holding part 17,19,21 is aligned to downstream side with the upstream side from stream 7 configures.Each oily holding part 17,19,21 is set to cross over respectively the center of the width direction of stream 7.In addition, between the both sides of each oily holding part 17,19,21 and the two side of valve mechanism cover 3, be configured to be formed with respectively clearance G 1, G2.In these clearance G 1, G2, a clearance G 1 arranges greatlyr than another clearance G 2.And the position that a plurality of oily holding parts 17,19,21 are configured to larger clearance G 1 differs from one another on the width direction of stream.
In the present embodiment, as shown in Figure 6, oily holding part 17,19,21 forms overlooks roughly U word shape, and forms the upstream side opening towards stream 7.In addition, the end E1 of side in each two end part E1, the E2 of oily holding part 17,19,21, that gap forms is greatlyr positioned at the position of the end E2 downstream of the side that ratio gap forms littlely.And the position in the downstream side of each oily holding part 17,19,21 is positioned at than the mode of the position of end E1 side downstream and is obliquely installed with end E2 side.
And as shown in Figure 2 and Figure 5, in the present embodiment, the mode that the upper-end surface of oily holding part 17,19,21 raises towards downstream side with the upstream side from stream 7 tilts.Even if the angle of this inclination considers that the inclination of vehicle that has produced supposition when Vehicle Driving Cycle is, the situation of inertial force and be set as producing the angle that the inclination suitable with it, inertial force oil also can not overflow from the upper end, downstream side of oily holding part 17,19,21.
In addition, as shown in Figure 6, the upstream side of the end E2 of a side that forms littlely in the gap of each oily holding part 17,19,21 is provided with guide plate 37,39,41. Guide plate 37,39,41 is integrally formed to the mode of the interior side direction extension of stream 7 and the sidewall 35 of valve mechanism cover 3 with the sidewall 35 from valve mechanism cover 3.Thus, can be to the isolated oil of oily holding part 17,19,21 guiding.
In addition, in the present embodiment, at the upper wall 43 of valve mechanism cover 3, be provided with the connecting plate 45,47 being integrally formed with upper wall 43.As shown in Figure 7, the mode that connecting plate 45,47 downward extends with the upper wall from valve mechanism cover 3 forms.In addition, connecting plate 45,47 is to extend obliquely setting by the upper end portion mode connected to one another of adjacent guide plate 37,39,41 at the upper wall of valve mechanism cover 3.
(2) effect of oil mist separator
The effect of oil mist separator 1 then, is described.As shown in Figure 2, on one side import to gas leakage in stream 7 from the 1st opening 9 and carry out wriggling movement by baffle plate 27,29 on one side circulate the sinuous portion 23 of oil separation part 11.Now, leak gas oil in contained vaporific oil, that particle is larger by inertial separation out.Utilize this isolated oil of sinuous portion 23 to reflux from the 1st opening 9 by the gap of the side of baffle plate 27.
In addition, in the impactor portion 25 of oil separation part 11, gas leakage has increased flow velocity through being formed on the through hole of demarcation strip 31, and clashes into crash panel 33 with this state.Now, mist of oil inertial impaction is to crash panel 33 and be attached to its surface.Thus, oil is separated from gas leakage.Then, the surperficial oil that is attached to crash panel 33 condenses gradually, to the below of crash panel 33, falls.Isolated oil like this arrives draining portion 13 along the surface of base plate 5, to outside, discharges.
In addition, under the impact of the inclination when the flowing of gas leakage, Vehicle Driving Cycle, inertial force etc., a part for isolated oil flows out to sometimes than the position of draining portion's 13 downstreams.Such oil is stoped by oily holding part 17,19,21.In addition, in the situation that the oil being stoped by oily holding part 17,19,21 downstream side overflow, from each end E1 of oily holding part 17,19,21, overflow.In this case.The oil overflowing is stoped by the oily holding part in a downstream.The inclination of the oil being prevented from during by Vehicle Driving Cycle, inertial force etc. play a role and upstream side return.Now, the position in the downstream side by oily holding part 17,19,21 is positioned at than the mode of the position of end E1 side downstream and is obliquely installed with end E2 side, thus oil successfully upstream side return.
And near the mobile directed plate 37,39,41 of oil of sidewall 35 flow downstream direction, that also utilize gas leakage that is attached to valve mechanism cover 3 stops.Then, oil is guided to oily holding part 17,19,21, thereby is stoped by oily holding part 17,19,21, and inhibition oil downstream effluent goes out.In addition, the oil that is attached to the upper wall 43 of valve mechanism cover 3 is connected plate 45,47 to be stoped.Then, along connecting plate 45,47, arrive guide plates 37,39,41, together with the oil stoping with directed plate 37,39,41 by oily holding part 17,19,21 guiding.
(3) embodiment's effect
Above, according to the oil mist separator 1 of the present embodiment, by utilizing the opening of the valve mechanism cover 3 of base plate 5 shutoff lower surface openings to be formed with the stream 7 at internal circulation for gas leakage.In stream 7 from upstream side possess successively for make gas leakage flow into the 1st opening 9 in stream, for the oil separation part 11 from gas leakage separating oil, utilize the draining portion 13 of oil separation part 11 isolated oil and for the 2nd opening 15 from the interior discharge gas leakage of stream 7 for discharging.On the upper surface of the base plate 5 between draining portion 13 and the 2nd opening 15, form to be useful on to stop with base plate 5 and utilize the isolated oil of the oil separation part 11 a plurality of oily holding part 17,19,21 that effluent goes out downstream, the mode that oily holding part 17,19,21 is aligned to downstream side with the upstream side from stream 7 configures.Be configured to be formed with respectively clearance G 1, G2 between the both sides of each oily holding part 17,19,21 and the two side 35 of valve mechanism cover 3, the one in the gap of the both sides of each oily holding part 17,19,21 is larger than another one.And in oily holding part in oily holding part 17,19,21 and other oily holding parts adjacent with oily holding part, the position of the larger clearance G 1 at the position of the larger clearance G 1 at an oily holding part place and other oily holding part places differs from one another.
According to this structure, even if the oil spill being stoped by oily holding part 17,19,21 goes out, also can utilize the oily holding part in a downstream to stop.Its result, can suppress isolated oil mobile to the downstream direction of stream 7.In addition, the position that is set to larger clearance G 1 due to a plurality of oily holding parts 17,19,21 differs from one another, and therefore can effectively bring into play 17,19,21 pairs of oily prevention functions of oily holding part.And then, by oily holding part 17,19,21, be arranged at the upper surface of base plate 5, thereby can suppress the flowing of gas leakage of base plate vicinity, can suppress oil and by side downstream, be taken away because of the mobile impact of gas leakage.In addition, by attempt and the oily holding part 17,19,21 that is wholely set of base plate 5 and the sidewall 35 of valve mechanism cover 3 between clearance G 1, G2 are set, thereby do not need the dimensional accuracy as the situation in gap is not set between oily holding part and sidewall, can form all good oil mist separators of productivity, assembling performance.
In addition, in the above-described embodiments, oily holding part 17,19,21 forms overlooks roughly U word shape, and forms the upstream side opening towards stream 7.Therefore, can make the oil mobile towards the downstream side of stream 7 enter the inner side of U word shape and be detained from the opening of oily holding part 17,19,21.Thus, can further effectively stop oil downstream effluent go out.Its result, can suppress oil and be taken away by side downstream.
And, in the above-described embodiments, oily holding part 17,19,21, and sidewall 35 between the upstream side of the gap end E2 that forms littlely side be provided with that the mode of extending to the interior side direction of stream 7 with the sidewall 35 from valve mechanism cover 3 forms and for to the oily guide plate 37,39,41 of oily holding part 17,19,21 guiding.Therefore, can utilize guide plate 37,39,41 to stop along the sidewall 35 of valve mechanism cover 3 oil of side flow downstream, and can be to oily holding part 17,19,21 sides guiding.Thus, can further effectively stop oil downstream effluent go out.Its result, can suppress oil and be taken away by side downstream.
In addition, in the above-described embodiments, the end E1 of side in end E1, the E2 of oily holding part 17,19,21, that gap forms is greatlyr positioned at the position of the end E2 downstream of the side that ratio gap forms littlely.Therefore,, when the oil spill being stoped by oily holding part 17,19,21 goes out, can make the end E1 side of the oily side that forms greatlyr from gap overflow.Thus, can utilize the oily holding part in a downstream to stop reliably the oil overflowing, can suppress oil and be taken away by side downstream.
And in the above-described embodiments, the mode that the upper-end surface of oily holding part 17,19,21 raises towards downstream side with the upstream side from stream 7 tilts.Therefore,, in the situation that the mode that oil mist separator 1 reduces with the downstream side towards stream 7 tilts or produced the inertial force towards the downstream direction of stream 7, can keep comparably with upstream side the prevention ability in the downstream side of oily holding part 17,19,21.Thus, can utilize the inhibition oil such as inclination, inertial force to overflow from the upper end, downstream side of oily holding part 17,19,21, can stop reliably oil.
In addition, in the above-described embodiments, the position in the downstream side of oily holding part 17,19,21 is positioned at than the mode of the position of end E1 side downstream and is obliquely installed with end E2 side.Therefore, the inclination at effluent goes out downstream oil during by Vehicle Driving Cycle, inertial force etc. play a role and when upstream side is returned, can be to the end E2 side of oily holding part 17,19,21, i.e. larger clearance G 1 side guiding oil.Thus, can make oil successfully upstream side return.
And, in the above-described embodiments, at the upper wall 43 of valve mechanism cover 3, be provided with connecting plate 45,47.The mode that these connecting plates 45,47 downward extend with the upper wall from valve mechanism cover 3 forms.Therefore, the oil that can make to be attached to the upper wall 43 of valve mechanism cover 3 stops by connecting plate 45,47, and not along upper wall 43 downstream effluent go out.
In addition, connecting plate 45,47 is to extend obliquely setting by the upper end portion mode connected to one another of adjacent guide plate 37,39,41 at the upper wall of valve mechanism cover 3.Therefore, can make to utilize connecting plate 45,47 to make the oil being prevented from arrive guide plates 37,39,41 along connecting plate 45,47, together with the oil stoping with directed plate 37,39,41 to oily holding part 17,19,21 guiding.Thus, can effectively suppress oil is taken away by side downstream.
In addition, in the utility model, be not limited to above-described embodiment, can adopt the embodiment who has implemented various changes in scope of the present utility model according to object, purposes.That is, in the above-described embodiments, exemplified with the mode that guide plate 37,39,41 and connecting plate 45,47 are set, but be not limited thereto, for example, also can adopt the mode that the one or both in guide plate and connecting plate is not set.
In addition, in the above-described embodiments, exemplified with the end E1 of side in each two end part E1, the E2 of oily holding part 17,19,21, that gap forms greatlyr, be positioned at the mode of position of the end E2 downstream of the side that ratio gap forms littlely, but be not limited thereto, for example, also can adopt the low mode of height of the end E2 of the side that the aspect ratio gap of the end E1 of the side that gap forms greatlyr forms littlely.The mode that in this case, also can adopt the position of end E1 of side that gap forms greatlyr and the position of the end E2 of the side that gap forms to be littlely positioned at roughly equal position on flow direction.Even this mode is also the same with above-described embodiment, in the situation that the oil being prevented from downstream side overflow, can make its end E1 from oily holding part 17,19,21 overflow.
For example, and in the above-described embodiments, the mode that the upper-end surface that makes oily holding part 17,19,21 raises towards downstream side with the upstream side from stream 7 tilts, but is not limited thereto, and also can adopt the oily holding part from upstream side to downstream side equal height.
In addition, in the above-described embodiments, as oil separation part 11, exemplified with comprising the oil separation part of portion 23 and impactor portion 25 of wriggling, but be not limited thereto, such as being also made as the oil separation part that comprises cyclone separator, filter etc.And, can be also one or more the oil separation part comprising in these members.
Above-mentioned example only merely for the purpose of description, can not be interpreted as limiting example of the present utility model.For the utility model, although be interpreted as enumerating the example of typical mode of execution, the utility model is described, the statement that description of the present utility model and diagram are used not is determinate statement, but illustrative and exemplary statement.At this, as describing in detail, in this technological scheme, can not depart from scope of the present utility model or spirit and change in additional claims.At this, though in described middle reference in detail specified structure, material and embodiment of the present utility model, but and do not mean that the utility model is defined in to the disclosure item, and the utility model relates to the structure being equal in function aspects in additional patent claim, all, method and usage mode.
The utility model is not limited to the above-mentioned mode of execution describing in detail, and it can carry out various distortion or change in the scope shown in claims of the present utility model.
Claims (8)
1. an oil mist separator, the PCV system that it is arranged at internal-combustion engine, is characterized in that,
By utilizing the formed opening of above-mentioned lower surface opening of the valve mechanism cover of base plate shutoff lower surface opening, thereby form the stream at internal circulation for gas leakage,
In above-mentioned stream, from upstream side, comprise successively:
The 1st opening, it is for flowing in above-mentioned stream above-mentioned gas leakage;
Oil separation part, it is for from above-mentioned gas leakage separating oil;
Draining portion, it utilizes the isolated oil of above-mentioned oil separation part for discharging; And
The 2nd opening, it for discharging above-mentioned gas leakage in above-mentioned stream;
In the part between above-mentioned draining portion and above-mentioned the 2nd opening of the upper surface of above-mentioned base plate, form and a plurality ofly for stoping, utilize the isolated oil of the above-mentioned oil separation part oily holding part that effluent goes out downstream with above-mentioned base plate,
The mode that above-mentioned oily holding part is aligned to above-mentioned downstream side with the above-mentioned upstream side from above-mentioned stream configures,
Be configured to be formed with respectively gap between the both sides of each above-mentioned oily holding part and two sidewalls of above-mentioned valve mechanism cover,
One in the above-mentioned gap of the both sides of each above-mentioned oily holding part is larger than another one,
In oily holding part in above-mentioned a plurality of oily holding parts and other oily holding parts adjacent with an above-mentioned oily holding part, the position in the larger above-mentioned gap at the position in the larger above-mentioned gap at an above-mentioned oily holding part place and other above-mentioned oily holding part places is staggered.
2. oil mist separator according to claim 1, is characterized in that,
Above-mentioned oily holding part forms overlooks roughly U word shape, and forms the upstream side opening towards above-mentioned stream.
3. oil mist separator according to claim 2, is characterized in that,
The upstream side of the end of a side that forms littlely in the above-mentioned gap of above-mentioned oily holding part is provided with guide plate, and the mode that this guide plate extends with the interior side direction from above-mentioned sidewall to above-mentioned stream forms, for guiding above-mentioned isolated oil to above-mentioned oily holding part.
4. oil mist separator according to claim 2, is characterized in that,
The end of side in the end of above-mentioned oily holding part, that above-mentioned gap forms is greatlyr positioned at the position of the end downstream of the side that forms littlely than above-mentioned gap.
5. oil mist separator according to claim 3, is characterized in that,
The upper-end surface of above-mentioned oily holding part tilts in the mode raising towards above-mentioned downstream side from above-mentioned upstream side.
6. oil mist separator according to claim 4, is characterized in that,
The upper-end surface of above-mentioned oily holding part tilts in the mode raising towards above-mentioned downstream side from above-mentioned upstream side.
7. oil mist separator according to claim 3, is characterized in that,
This oil mist separator also has on the flow direction of above-mentioned gas leakage the upper end portion of adjacent above-mentioned guide plate connecting plate connected to one another,
With the upper wall from above-mentioned valve mechanism cover, the mode to the interior side direction extension of above-mentioned stream forms above-mentioned connecting plate.
8. oil mist separator according to claim 5, is characterized in that,
This oil mist separator also has on the flow direction of above-mentioned gas leakage the upper end portion of adjacent above-mentioned guide plate connecting plate connected to one another,
With the upper wall from above-mentioned valve mechanism cover, the mode to the interior side direction extension of above-mentioned stream forms above-mentioned connecting plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012241159A JP5895816B2 (en) | 2012-10-31 | 2012-10-31 | Oil mist separator |
| JP2012-241159 | 2012-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559960U true CN203559960U (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320656427.8U Expired - Lifetime CN203559960U (en) | 2012-10-31 | 2013-10-23 | Oil mist separator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5895816B2 (en) |
| CN (1) | CN203559960U (en) |
| DE (1) | DE102013221611B4 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106661979A (en) * | 2014-06-17 | 2017-05-10 | 认知控管株式会社 | Internal combustion engine separator |
| CN106894861A (en) * | 2015-12-21 | 2017-06-27 | 爱信精机株式会社 | Oil eliminator |
| CN107152324A (en) * | 2017-06-09 | 2017-09-12 | 汉格斯特滤清系统(昆山)有限公司 | A kind of gs-oil separator |
| CN110945217A (en) * | 2017-07-28 | 2020-03-31 | 株式会社利富高 | Oil separator structure of engine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10145278B2 (en) | 2015-05-14 | 2018-12-04 | Toyota Boshoku Kabushiki Kaisha | Blow-by gas passage structure |
| JP6729285B2 (en) * | 2016-10-19 | 2020-07-22 | トヨタ紡織株式会社 | Oil mist separator |
| JP6790870B2 (en) * | 2017-01-25 | 2020-11-25 | トヨタ紡織株式会社 | Oil mist separator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59110317U (en) * | 1983-01-14 | 1984-07-25 | マツダ株式会社 | engine oil separator |
| JPS60175810U (en) * | 1984-04-28 | 1985-11-21 | 日産ディーゼル工業株式会社 | Blow-by gas treatment equipment for internal combustion engines |
| JP2540860Y2 (en) * | 1988-03-22 | 1997-07-09 | 日産ディーゼル工業株式会社 | Blow-by gas recirculation device |
| DE4131988C2 (en) * | 1991-09-26 | 1995-05-11 | Rentschler Reven Lueftungssyst | Separator for liquids from a gas stream, especially for oil mist |
| JP2007064029A (en) * | 2005-08-30 | 2007-03-15 | Nissan Motor Co Ltd | Oil separator of internal combustion engine |
| JP4918843B2 (en) * | 2006-11-06 | 2012-04-18 | 日産自動車株式会社 | Rocker cover oil separator structure |
| JP2010248971A (en) * | 2009-04-14 | 2010-11-04 | Toyota Motor Corp | Oil deterioration suppressing device for internal combustion engine |
-
2012
- 2012-10-31 JP JP2012241159A patent/JP5895816B2/en active Active
-
2013
- 2013-10-23 CN CN201320656427.8U patent/CN203559960U/en not_active Expired - Lifetime
- 2013-10-24 DE DE102013221611.4A patent/DE102013221611B4/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106661979A (en) * | 2014-06-17 | 2017-05-10 | 认知控管株式会社 | Internal combustion engine separator |
| CN106894861A (en) * | 2015-12-21 | 2017-06-27 | 爱信精机株式会社 | Oil eliminator |
| CN107152324A (en) * | 2017-06-09 | 2017-09-12 | 汉格斯特滤清系统(昆山)有限公司 | A kind of gs-oil separator |
| CN107152324B (en) * | 2017-06-09 | 2018-06-22 | 汉格斯特滤清系统(昆山)有限公司 | A kind of gs-oil separator |
| CN110945217A (en) * | 2017-07-28 | 2020-03-31 | 株式会社利富高 | Oil separator structure of engine |
| CN110945217B (en) * | 2017-07-28 | 2021-12-21 | 株式会社利富高 | Oil separator structure of engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013221611A1 (en) | 2014-04-30 |
| JP2014092036A (en) | 2014-05-19 |
| DE102013221611B4 (en) | 2021-04-22 |
| JP5895816B2 (en) | 2016-03-30 |
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