CN104612783B

CN104612783B - Engine oil-gas separator

Info

Publication number: CN104612783B
Application number: CN201510020235.1A
Authority: CN
Inventors: 高志坚
Original assignee: Changzhou Vocational Institute of Mechatronic Technology
Current assignee: Changzhou Vocational Institute of Mechatronic Technology
Priority date: 2015-01-16
Filing date: 2015-01-16
Publication date: 2017-02-01
Anticipated expiration: 2035-01-16
Also published as: CN104612783A

Abstract

The invention relates to the technical field of automobile engine crankcase ventilation, in particular to an oil-gas separator used for automobile engine crankcase ventilation. The oil-gas separator comprises an inner pipe, an air outflow pipe, an outer pipe, an air inflow pipe, a cover board, a liquid storage bottle, a gasket and a support. The inner pipe is circular, the air outflow pipe is connected to the upper portion of the inner pipe and communicated with the inner pipe, the outer pipe is circular and arranged on the outer side of the inner pipe, the outer pipe and the inner pipe are coaxial, an annular channel is defined by the inner wall of the outer wall and the outer wall of the inner pipe, the upper end of the annular channel is closed, the air inflow pipe is arranged at the upper portion of the outer pipe and connected with the cylindrical face of the outer pipe tangentially, the air inflow pipe is communicated with the annular channel, the cover board is arranged on the outer side of the outer pipe, the liquid storage bottle is installed at the lower portion of the cover board, the gasket is arranged between a bottle opening of the liquid storage bottle and the cover board, the support is provided with a hoop, screw holes and installation holes, and the outer edge of the cover board and the outer edge of the bottle opening of the liquid storage bottle are surrounded by the hoop. By the adoption of the oil-gas separator, the oil-gas separation effect of an engine crankcase ventilation system can be improved, the inducement of engine oil emulsion is eliminated, and the oil-gas separator is reliable in installation and convenient to detach.

Description

A kind of oil-gas separating device for engine

Technical field

The present invention relates to automobile engine crankcase aeration technology field is and in particular to a kind of be used for automobile engine crankshaft The gas and oil separating plant of case ventilation.

Background technology

In the course of the work, a small amount of gaseous mixture in cylinder can be by piston ring and cylinder wall gap, work for automobile engine Plug ring compressed gap etc. scurries into crankcase, if the gaseous mixture scurrying into crankcase is not drawn, can lead to the pressure liter in crankcase Height, causes the sealing structure oil leak such as oil sealing.Therefore, automobile engine crankcase is designed with ventilating system, and ventilating system will be scurried into The gaseous mixture of crankcase causes engine air inlet tube, sucks cylinder combustion.Cause the gaseous mixture of air inlet pipe from crankcase and contain Machine oil droplet and water vapour, machine oil droplet can not fully burn, and absorption and is formed in engine air inlet tube, cylinder, exhaustor Carbon distribution.

In order to reduce engine air inlet tube, cylinder, exhaustor carbon distribution, some automobiles are mounted with to be placed on the oil gas of electromotor Separator, and be connected with crankcase ventilation system with pipeline, this gs-oil separator adopts centrifugation structure, by machine oil droplet Separate from gaseous mixture, the machine oil separated flows out from the machine oil outlet of gs-oil separator, is flowed back to by oil pipe and starts Machine crankshaft case, is directed to engine air inlet tube again through the gaseous mixture of Oil-gas Separation, reaches minimizing air inlet pipe, cylinder, exhaustor The purpose of carbon distribution.Because not containing only machine oil droplet in gaseous mixture, also contain water vapour, water vapour can be in this gs-oil separator In condense and separate, flow into engine crankcase together with the machine oil separated, lead to moisture content in engine motor oil Accumulation, after in engine motor oil, water content exceedes certain limit, engine motor oil will emulsifying.So, this Oil-gas Separation Device may lead to engine motor oil emulsifying.

Content of the invention

It is an object of the invention to provide a kind of oil-gas separating device for engine being not result in engine motor oil emulsifying, this Motivation gs-oil separator is installed on outside electromotor, can improve the oil gas separation of engine crankshaft ventilation system, and energy The oil separated, water are stored in the liquid containing bottle of oil-gas separating device for engine, it is to avoid oil, current return engine crankcase, Thus the inducement of engine motor oil emulsifying is completely eliminated.In addition, this oil-gas separating device for engine is provided with support, can easily by Oil-gas separating device for engine is installed on car body；The hoop of support had both had the effect of stationary engine gs-oil separator, and There is dress, tear the effect of liquid containing bottle open, and reliable, convenient disassembly is installed.

For achieving the above object, the present invention adopts the technical scheme that: a kind of oil-gas separating device for engine, including inner tube, Escape pipe, outer tube, air inlet pipe, cover plate, liquid containing bottle, packing ring, support, said inner tube is rounded, and described escape pipe is connected to inner tube Top and connect with inner tube, described outer tube is rounded, and outer tube is arranged on the outside of inner tube coaxial with inner tube, outer tube wall with Outer wall of inner tube surrounds circular passage, circular passage upper end closed, and described air inlet pipe is arranged on outer tube top the cylinder with outer tube Face is tangentially connected, and air inlet pipe is connected with circular passage, and described cover plate is arranged on the outside of outer tube, and described liquid containing bottle is arranged on cover plate Bottom, between liquid containing bottle bottleneck and cover plate, packing ring is set, described support is provided with hoop, screw, installing hole, described hoop is centered around lid The outer rim of plate and the outer rim of liquid containing bottle bottleneck.

This oil-gas separating device for engine can improve, and arrange spiral lamina, make in circular passage in described circular passage The gaseous mixture of high-speed motion carries out water conservancy diversion, to improve oil gas separation.

This oil-gas separating device for engine can improve further, sets up guide pin bushing, tappet, float, permanent magnet, tongue tube, institute State guide pin bushing to be fixed in oil-gas separating device for engine, guide pin bushing is provided with hole, described tappet is interspersed in the hole of guide pin bushing, tappet lower end is even Connect float, tappet upper end is arranged on the outside of oil-gas separating device for engine equipped with permanent magnet, described tongue tube, and tongue tube is connected on report In alert circuit, when the oil in liquid containing bottle, aqueous position constantly rise, the position of float also constantly rises with oil, aqueous position, pushes away The position of dynamic permanent magnet constantly raises, and constantly close to tongue tube, the magnetic field intensity acting on tongue tube constantly increases permanent magnet, when When magnetic field intensity increases to certain limit, contact in tongue tube will adhesive, so that warning circuit is turned on, thus sending liquid level report Alert signal.

This oil-gas separating device for engine also can improve further, opens up passage on the tube wall on said inner tube top, Passage is connected with circular passage, and the inwall of inner tube arranges projection, and projection protrudes from the internal face of inner tube, is provided with inner tube Movably sleeve pipe, on the outer wall of described sleeve pipe, the axial direction along sleeve pipe opens up groove, and the projection of inner tube is embedded in the groove of sleeve pipe, set Gas port is opened up on the tube wall on pipe top, it is coaxial with sleeve pipe that described guide pin bushing is fixed on the center of sleeve pipe and the hole of guide pin bushing, is interspersed in The lower end of the tappet in dowel hole connects the float that shaped upper part is in taper seat, when the oil in liquid containing bottle, aqueous position rise to the upper limit When, the lower nozzle of the taper seat meeting closed casing of float, close the passage that gaseous mixture flows into sleeve pipe, float in the presence of pressure reduction Move up with sleeve pipe, the passage of the gas port of sleeve pipe and inner tube is connected, the gaseous mixture coming from air inlet pipe pass through passage with Gas port is directly entered sleeve pipe, and the oil gas function of centrifugal separation of oil-gas separating device for engine now is lost, oil in liquid containing bottle, Aqueous position will not rise again, prevents oil, water from sucking engine air inlet tube；After oil in removing liquid containing bottle, water, in the effect of gravity Lower float is moved down with sleeve pipe, and the gas port of sleeve pipe is staggered with the passage of inner tube, and float is moved down and separated with the lower nozzle of sleeve pipe, mixes The passage closing gas from circular passage inflow sleeve pipe is switched on, and the oil gas function of centrifugal separation of oil-gas separating device for engine at this moment is extensive Multiple.

Brief description

To this specification, the content expressed by each accompanying drawing and the labelling in accompanying drawing are briefly described below:

Fig. 1 is the structural representation of inventive engine gs-oil separator；

Fig. 2 is a direction view of Fig. 1, illustrates the structure when hoop of support is tightened up；

Fig. 3 is the b direction view of Fig. 1, shows the plan structure of circular passage and gaseous mixture flows in circular passage Schematic diagram；

Fig. 4 shows the structural representation of the oil-gas separating device for engine that increased spiral lamina；

Fig. 5 shows the structural representation of spiral lamina；

Fig. 6 shows the structural representation of the oil-gas separating device for engine that increased liquid level alarm device；

Fig. 7 is the schematic diagram with the oil-gas separating device for engine being automatically switched off oil gas function of centrifugal separation, illustrates to close Close structure during oil gas function of centrifugal separation；

Fig. 8 is the c direction view of Fig. 7, have expressed the structure that gas port and passage connect and gaseous mixture pass through passage with The schematic diagram of gas port sleeve pipe；

Fig. 9 is the schematic diagram with the oil-gas separating device for engine being automatically switched off oil gas function of centrifugal separation, shows oil Structure when gas function of centrifugal separation recovers.

Wherein: 1 air inlet pipe, 2 escape pipes, 3 cover plates, 4 supports, 4-1 installing hole, 4-2 screw, 4-3 Hoop, 5 packing rings, 6 outer tubes, 7 inner tubes, 7-1 passage, 7-2 projection, 8 liquid containing bottles, 9 circular passages, 10 liquid Position, 11 spiral laminas, 12 guide pin bushings, 13 tappets, 14 floats, 15 permanent magnets, 16 tongue tubes, 17 sleeve pipes, 17- 1 gas port, 17-2 groove.

Specific embodiment

As shown in Figure 1 and Figure 2, oil-gas separating device for engine of the present invention, including inner tube 7, escape pipe 2, outer tube 6, enters Trachea 1, cover plate 3, liquid containing bottle 8, packing ring 5, support 4, said inner tube 7 is rounded, and described escape pipe 2 is connected to the top of inner tube 7 And connect with inner tube 7, described outer tube 6 is rounded, and outer tube 6 is arranged on the outside of inner tube 7 coaxial with inner tube 7, outer tube 6 inwall with Inner tube 7 outer wall surrounds circular passage 9, circular passage 9 upper end closed, described air inlet pipe 1 be arranged on outer tube 6 top and with outer tube 6 The face of cylinder tangentially connected, air inlet pipe 1 is connected with circular passage 9, and described cover plate 3 is arranged on the outside of outer tube 6, described liquid containing bottle 8 bottoms being arranged on cover plate 3, arrange packing ring 5, the effect of packing ring 5 is seal cover board 3 and storage between liquid containing bottle 8 bottleneck and cover plate 3 Gap between liquid bottle 8 bottleneck, prevent outside air enter oil-gas separating device for engine inside, described support 4 be provided with hoop 4-3, Screw 4-2, installing hole 4-1, the cross section of described hoop 4-3 is in ＞ shape, and hoop 4-3 is centered around outer rim and liquid containing bottle 8 bottleneck of cover plate 3 Outer rim and bind round the outer rim of the concave surface of 4-3 towards cover plate 3 and liquid containing bottle 8 bottleneck, described screw 4-2 is equipped with bolt fastener.

As shown in Figure 1 and Figure 2, easily this oil-gas separating device for engine can be fitted together, first packing ring 5 is enclosed within It is placed on outer tube 6 on the downside of cover plate 3, then by liquid containing bottle 8 bottleneck and cover plate 3 pairing, finally the hoop 4-3 of support 4 is enclosed within cover plate 3 Outer rim and liquid containing bottle 8 bottleneck outer rim, screw the pre- bolt fastener being contained in support 4 screw 4-2, the hoop 4-3's of support 4 Concave surface to cover plate 3 and liquid containing bottle 8 bottleneck outer rim compression and simultaneously by cover plate 3 with liquid containing bottle 8 bottleneck to compression, packing ring 5 general Cover plate 3 and liquid containing bottle 8 bottle sealing.The installing hole 4-1 that the oil-gas separating device for engine assembling passes through on support 4 erects and is loaded on vapour On car car body.

As shown in Figure 1, Figure 3, the present invention adopts centrifugal separation, and the gaseous mixture scurrying into crankcase starts through pipeline introducing Machine oil gas separating device, enters circular passage 9 through air inlet pipe 1, makees high speed circular motion and move downward in circular passage 9, mixes Close the movement locus helically line of gas, as shown in the band arrow lines of in figure, due to the oil in gaseous mixture, that water smoke drips centrifugal force is big In gas, most of oil, water smoke drip and are thrown on outer tube 6 inwall and trickle downwards, and part oil, water smoke drip and adheres to inner tube 7 Trickle above and downwards, the oil of trickling, water instill liquid containing bottle 8 downwards；The gaseous mixture flowing out in circular passage 9 enters inner tube 7, edge Inner tube 7 travels up to escape pipe 2, then is introduced into engine air inlet tube through pipeline, and gaseous mixture flows into by the road from crankcase Oil-gas separating device for engine, more by the road flow into engine air inlet tube power by cylinder inspiratory force provide.Work as storage When oil in liquid bottle 8, aqueous position 10 run up to certain altitude, the bolt fastener on support 4 screw 4-2, support 4 can be unscrewed Hoop 4-3 unclamp from the outer rim of cover plate 3 and liquid containing bottle 8 bottleneck, the thrust between cover plate 3 and liquid containing bottle 8 bottleneck is also released therewith Put, liquid containing bottle 8 can be pulled down, reclaim oil therein, water.

This oil-gas separating device for engine can make improvements, as shown in figure 4, arranging spiral lamina 11, spiral in circular passage 9 The structure of plate 11, as shown in figure 5, carrying out water conservancy diversion to the gaseous mixture making high-speed motion in circular passage 9, is imitated with improving Oil-gas Separation Really.

This oil-gas separating device for engine also can improve, as shown in fig. 6, increasing liquid level alarm device, when in liquid containing bottle 8 When certain altitude is accumulated in oil, aqueous position 10, alarm signal can be sent.Liquid level alarm device includes guide pin bushing 12, tappet 13, float 14th, permanent magnet 15, tongue tube 16, described guide pin bushing 12 is fixed in oil-gas separating device for engine, and preferably embodiment is guide pin bushing 12 are fixed in inner tube 7, and guide pin bushing 12 is provided with hole, and described tappet 13 is interspersed in the hole of guide pin bushing 12, and tappet 13 lower end connects float 14, tappet 13 upper end makes tappet 13 can only move up and down equipped with permanent magnet 15, the degree of freedom of the hole restriction tappet 13 of guide pin bushing 12, Described tongue tube 16 is arranged on the outside of oil-gas separating device for engine, and preferably embodiment is that tongue tube 16 is arranged on inner tube 7 The outside of upper end, tongue tube 16 is connected in warning circuit, and when the oil in liquid containing bottle 8, water are constantly accumulated, liquid level 10 constantly rises When, float 14 can be floated by oil, water, and tappet 13 moves upwards, and the position of the permanent magnet 15 being contained on tappet 13 constantly raises, forever Constantly close to tongue tube 16, the magnetic field intensity acting on tongue tube 16 constantly increases magnet 15, when magnetic field intensity increases to necessarily During limit, contact in tongue tube 16 will adhesive, so that warning circuit is turned on, thus sending liquid level warning signal.

This oil-gas separating device for engine also can improve further, as shown in Fig. 7, Fig. 8, Fig. 9, increase and be automatically switched off oil gas Function of centrifugal separation, this function can prevent to lead to oil, water to suck electromotor because the oil in liquid containing bottle 8, aqueous position 10 are too high to enter Trachea.Passage 7-1 is opened up on the tube wall on inner tube 7 top, passage 7-1 is connected with circular passage 9, on the inwall of inner tube 7 Setting projection 7-2, projection 7-2 protrude from the internal face of inner tube 7, arrange sleeve pipe 17 moving up and down, sleeve pipe 17 in inner tube 7 Outer wall on open up groove 17-2 along the axial direction of sleeve pipe 17, the projection 7-2 of inner tube 7 is embedded in the groove 17-2 of sleeve pipe 17, sleeve pipe 17 Gas port 17-1, sleeve pipe 17 outer wall and inner tube 7 contact internal walls, the mixing flowed out in circular passage 9 are opened up on the tube wall on top Gas can not flow through between sleeve pipe 17 outer wall and inner tube 7 inwall, can only flow into sleeve pipe 17 and flow to escape pipe 2 again, guide pin bushing 12 is fixing At the center of sleeve pipe 17 and make guide pin bushing 12 hole coaxial with sleeve pipe 17, tappet 13 is interspersed in the hole of guide pin bushing 12, tappet 13 lower end Connect float 14, the shaped upper part of float 14 is taper seat；As shown in Figure 7, Figure 8, when the oil in liquid containing bottle 8, water are constantly accumulated, When liquid level 10 rises to the upper limit, float over the lower nozzle of the taper seat meeting closed casing 17 of float 14 on liquid level, close mixed airflow Enter the passage of sleeve pipe 17, the air pressure in circular passage 9 and liquid containing bottle 8 increases and the air pressure in sleeve pipe 17 reduces, in pressure reduction In the presence of float 14 move up with sleeve pipe 17, when the projection 7-2 of inner tube 7 is met in the lower end moving to groove 17-2 on sleeve pipe 17 When, sleeve pipe 17 moves to top dead centre, and at this moment, the gas port 17-1 of sleeve pipe 17 is connected with the passage 7-1 of inner tube 7, from air inlet The gaseous mixture of pipe 1 passes through passage 7-1 and gas port 17-1 to be directly entered sleeve pipe 17, then flows out from escape pipe 2, as in figure Shown in band arrow lines；Because gaseous mixture does not make high speed circular motion in circular passage 9, engine oil gas now The oil gas function of centrifugal separation of separator is lost, and the oil in liquid containing bottle 8, aqueous position 10 will not rise again, prevents oil, water from sucking and sends out Motivation air inlet pipe；As shown in figure 9, pull down liquid containing bottle 8 and reclaim oil therein, after water, float 14 loss of buoyance, in the work of gravity Moved down with lower float 14 and sleeve pipe 17, when the projection 7-2 of inner tube 7 is met in the upper end that sleeve pipe 17 is displaced downwardly to groove 17-2, sleeve pipe 17 Just move to lower dead center, the gas port 17-1 of sleeve pipe 17 is staggered with the passage 7-1 of inner tube 7, and gaseous mixture cannot pass through passage 7-1 and gas port 17-1 are directly entered sleeve pipe 17, and float 14 is moved down and separate with the lower nozzle of sleeve pipe 17, and gaseous mixture leads to from annular The passage that road 9 flows into sleeve pipe 17 is switched on, and the oil gas function of centrifugal separation of oil-gas separating device for engine at this moment recovers.

Claims

1. a kind of oil-gas separating device for engine, including inner tube (7), escape pipe (2), outer tube (6), air inlet pipe (1), said inner tube (7) rounded, described escape pipe (2) is connected to the top of inner tube (7) and is connected with inner tube (7), and described outer tube (6) is rounded, Outer tube (6) is arranged on the outside of inner tube (7) coaxial with inner tube (7), and it is logical that outer tube (6) inwall and inner tube (7) outer wall surround annular Road (9), circular passage (9) upper end closed, described air inlet pipe (1) is arranged on outer tube (6) top the face of cylinder with outer tube (6) and cuts To connection, air inlet pipe (1) connect with circular passage (9) it is characterised in that: also include cover plate (3), liquid containing bottle (8), packing ring (5), Support (4), described cover plate (3) is arranged on the outside of outer tube (6), and described liquid containing bottle (8) is arranged on the bottom of cover plate (3), liquid storage Setting packing ring (5) between bottle (8) bottleneck and cover plate (3), described support (4) is provided with hoop (4-3), screw (4-2), installing hole (4- 1), described hoop (4-3) is centered around the outer rim of cover plate (3) and the outer rim of liquid containing bottle (8) bottleneck.

2. oil-gas separating device for engine according to claim 1 it is characterised in that: setting spiral shell in described circular passage (9) Rotating plate (11).

3. the oil-gas separating device for engine according to any claim in claim 1 to 2 it is characterised in that: be provided with and lead Set (12), tappet (13), float (14), permanent magnet (15), tongue tube (16), described guide pin bushing (12) is fixed on engine oil edema caused by disorder of QI In device, guide pin bushing (12) is provided with hole, and described tappet (13) is interspersed in the hole of guide pin bushing (12), and tappet (13) lower end connects float (14), equipped with permanent magnet (15), described tongue tube (16) is arranged on the outside of oil-gas separating device for engine for tappet (13) upper end.

4. oil-gas separating device for engine according to claim 3 it is characterised in that: on the tube wall on said inner tube (7) top Open up passage (7-1), passage (7-1) is connected with circular passage (9), on the inwall of inner tube (7), setting projection (7-2), convex Block (7-2) protrudes from the internal face of inner tube (7), is provided with moveable sleeve pipe (17), outside described sleeve pipe (17) in inner tube (7) On wall, the axial direction along sleeve pipe (17) opens up groove (17-2), and the projection (7-2) of inner tube (7) is embedded in the groove (17-2) of sleeve pipe (17) Interior, the tube wall on sleeve pipe (17) top opens up gas port (17-1), described guide pin bushing (12) is fixed on the center of sleeve pipe (17) and leads The hole of set (12) is coaxial with sleeve pipe (17), and it is in circular cone that the lower end of the tappet (13) being interspersed in guide pin bushing (12) hole connects shaped upper part The float (14) in face.