CN207454067U - Use for diesel engine Horizontal oil-gas separator - Google Patents

Abstract

A kind of use for diesel engine Horizontal oil-gas separator, it includes housing (1) and filter core (2), filter chamber (3) and cushion chamber (4) are equipped in the housing (1), filter chamber (3) is located at the one side of cushion chamber (4) transverse direction, and filter chamber (3) is connected with cushion chamber (4)；The lower section of filter chamber (3) is equipped with the air inlet (5) for Gong being mixed on the housing (1), and air inlet (5) is connected by inlet channel (6) with filter chamber (3)；On the housing (1) top of cushion chamber (4) be equipped with gas outlet (7), and on housing (1) cushion chamber (4) lower section be equipped with oil return opening (8)；The filter core (2) is located in filter chamber (3), filter core (2) is loop configuration, the top of the interior inlet channel of the filter chamber (3) (6) is equipped with regulating valve (9), the outer diameter of regulating valve (9) is less than the internal diameter of filter core (2) but more than the internal diameter of inlet channel (6), and the regulating valve (9) is compared with inlet channel (6) eccentric setting；Compared with prior art, the utility model has the characteristics that oil-gas separation efficiency is higher and stability in use is preferable.

Description

Use for diesel engine Horizontal oil-gas separator

Technical field

The utility model is related to engine oil gas separation technology field, specifically a kind of use for diesel engine Horizontal oil-gas separation Device.

Background technology

Gs-oil separator is connected on beside engine crank case ventilation valve, because when engine works, the gas blowby of cylinder Pressure can be generated with machine oil steam, engine can be damaged, it is therefore desirable to generate it by crankcase vent valve true Sky has a large amount of machine oil steam in the gas released due to crankcase vent valve, so gs-oil separator mainly steams machine oil Vapour is separated into machine oil and steam, and machine oil is made to be flowed back to after bottom case is assembled inside engine and is re-used, steam flow to engine weight New burning, is prevented from directly entering air, causes atmosphere pollution.

The use for diesel engine Horizontal oil-gas separator of the prior art, as the China of Application No. 201510420038.9 is practical new Type discloses a kind of gs-oil separator, and including housing, housing is equipped with mixed gas air inlet, the first oil-gas separation chamber, the second oil Gas disengagement chamber, the 3rd oil-gas separation chamber, manifold head passage, turbine end interface channel, the first oil of mixed gas air inlet connection Gas disengagement chamber, the first Oil-gas Separation intracavitary are equipped with several the first fluid baffle, dynamic oil back chamber and first exhaust steam passages；Second Oil-gas Separation intracavitary sets Oil-gas Separation component, seal cover board, the second drainback passage and the second exhaust steam passage, the 3rd oil-gas separation chamber It is interior to be equipped with several the 3rd fluid baffle, the 3rd drainback passage, the 3rd exhaust steam passages；The said goods devise multiple tracks Oil-gas Separation Chamber, and pass through special design in per pass Oil-gas Separation intracavitary, it can be clean by Oil-gas Separation, effectively avoid machine oil quilt Suck engine；But there are complicated, the technical problems such as cost of manufacture height for above-mentioned gs-oil separator.Also just like Application No. 201620915813.8 Chinese utility model discloses a kind of gs-oil separator, including housing (1) and upper cover (2), in housing (1) hollow chamber is provided in, partition plate one (3) is set on housing (1), partition plate two (4) is set in upper cover (2), it is described Hollow chamber gaseous mixture inlet chamber (5) and mixed gas separation chamber (6), partition plate are divided by partition plate one (3) and partition plate two (4) Filter chamber (7) is provided between one (3) and partition plate two (4), filter cotton (8) is provided in the filter chamber (7), described is mixed It closes gas inlet chamber (5) bottom to connect with mixed gas inlet (9), mixed gas separation chamber (6) bottom is connected with oil return opening (10), is mixed It closes and valve seat (11) is set above gas disengagement chamber (6), valve seat (11) is tightly connected with valve deck (12), the interior centre bit of the valve seat (11) Valve venthole (14) is installed, the valve venthole (14) is connected with being arranged on the gas outlet (13) of valve seat (11) side, Core assembly is provided with above the valve venthole (14)；Although whole relatively simple, manufacturing cost is relatively low, due to Mixed gas enters to be lower to upper dead-beat, and mixed gas can only enter mixed gas separation from the one side of gaseous mixture inlet chamber Air inlet is less efficient in chamber, and it is higher to be easy to cause mixed gas inlet pressure, and situation about disengaging occurs, and can also cause into Entering the mixed gas of mixed gas separation chamber plays the role of supercharging so that into mixed gas separation chamber mixed gas flow velocity compared with Soon, so as to reducing efficiency of the mixed gas separation chamber to Oil-gas Separation.Furthermore such as the China of Application No. 201520630355.9 Utility model discloses a kind of gs-oil separator, is related to mechanical manufacturing field.It includes Pcv valve lid, Pcv valve pedestal, main casing Body, filter core, Pcv valve diaphragm, Pcv valve spring, O-ring seal, bracket insert；The Pcv valve lid, Pcv valve pedestal, main casing according to Secondary to be closely connected to, the side wall of the Pcv valve pedestal is provided with gas outlet, the venthole of the Pcv valve lid and Pcv valve pedestal it Between be provided with Pcv valve diaphragm, Pcv valve spring, the main casing body sidewall are provided between the Pcv valve diaphragm and Pcv valve pedestal Setting is mixed into gas port, while main casing is internally provided with filter core and lower part is provided with oil return opening, and the filter core is included outside filter core Shell, filter cotton, filter core regulating valve, filter cartridge seat, filter element spring, filter element spring piece, filter core lower casing；But this structure can not be with cylinder Lid is integrated, and air inlet also can only be side air inlet, can not descend air inlet, and this structure is due in Application No. 201620915813.8 The mixed gas of state's utility model is from a wing passage filter core, then can not this structure setting be arrived Application No. 201620915813.8 Chinese utility model on.

Utility model content

Technical problem to be solved in the utility model is：There is provided a kind of oil-gas separation efficiency is higher, stability in use compared with Good use for diesel engine Horizontal oil-gas separator.

Technical solution adopted in the utility model is：A kind of use for diesel engine Horizontal oil-gas separator is provided, it includes shell Body and filter core, the housing is interior to be equipped with filter chamber and cushion chamber, and filter chamber is located at the one side of cushion chamber transverse direction, and filter chamber is with delaying Rush chamber connection；The lower section of filter chamber is equipped with the air inlet for Gong being mixed on the housing, and air inlet passes through inlet channel and mistake Filter chamber connects；The top that cushion chamber is crossed on the housing is equipped with gas outlet, and the lower section that cushion chamber is crossed on housing is equipped with oil return opening； The filter core is located in filter chamber, and filter core is located at loop configuration, and the top of inlet channel is equipped with regulating valve in the filter chamber, adjusts The outer diameter for saving valve is less than the internal diameter of filter core but more than the internal diameter of inlet channel, and the regulating valve is set compared with inlet channel bias It puts.

The utility model has the following advantages compared with prior art：

The utility model is located at the one side of cushion chamber transverse direction due to being equipped with filter chamber and cushion chamber, filter chamber in housing, and Filter chamber is connected with cushion chamber, and the lower section of filter chamber is equipped with the air inlet for Gong being mixed on housing, and air inlet is led to by air inlet Road is connected with filter chamber；The top of cushion chamber is equipped with gas outlet on housing, and the lower section that cushion chamber is crossed on housing is equipped with oil return opening； Filter core is located in filter chamber, and filter core is loop configuration, and the top of inlet channel is equipped with regulating valve, the outer diameter of regulating valve in filter chamber Internal diameter less than filter core but the internal diameter more than inlet channel, regulating valve is compared with inlet channel eccentric setting；Then gaseous mixture first Body is after filter chamber filters, and gas needs laterally to enter in cushion chamber from bottom, and gas must be above cushion chamber Gas outlet go out so that gas is longer in cushion chamber residence time, so that remaining fraction oil also can in gas It is separated in cushion chamber, improves oil-gas separation efficiency；Secondly the regulating valve of eccentric setting is keeping the premise of housing constancy of volume Under solve the problems, such as originally set regulating valve, can effectively control the speed of gaseous mixture, increase the filtration of filter core, Also controllable crankcase pressure；Furthermore mixed gas disperses around simultaneously directly after inlet channel entrance under the action of regulating valve It connects and is flushed on filter core, so as to further improve oil-gas separation efficiency while intake efficiency is improved.

Further, the air inlet is located at the side of inlet channel, and the lower end sealing of inlet channel；Then so set Afterwards, it can not only prevent the in vivo lubricating oil splash of cylinder from entering directly into inlet channel, also may be such that the gaseous mixture in cylinder is first There are one collision process, the parts of lubricating oil that gaseous mixture carries in this collision process can be separated for lower end with inlet channel Out, and gaseous mixture of the side after into inlet channel when also can with inlet channel wall there are one directly collision, and can will The parts of lubricating oil of carrying is separated, so as to further improve the separative efficiency of oil gas.

Further, the inner wall of the inlet channel lower end is equipped with step surface, the step surface eccentric setting, and step The area in face is the 1/8~1/3 of inlet channel cross-sectional area, and the height a of step surface is 1~4mm；After then so setting, mix Gas is closed under the action of step surface, beneath a part of gas is first upward by step surface stop, so that the gas of other parts The air-flow of body will not be acted on step surface completely, so that running down into the lubricating oil of step surface on inlet channel inner wall, no It is easily influenced and reverse upwards, and can directly be returned to from air inlet in cylinder body by air-flow, and the lubricating oil at air inlet exists (step surface excessive height can seriously affect unit air inflow to step surface in the range of certain altitude, and too low not have the bottom of to Portion air-flow is oriented to and stops the effect of lubricating oil adverse current at air inlet) under the action of will not be reverse upwards, so as to ensure air inlet Lubricating oil at mouthful can smoothly flow back, and the lubricating oil of the reflux may also function as the work for solidifying oil gas in a part of gaseous mixture With further improving the separative efficiency of oil gas.

Further, the spacing between the axis of the regulating valve and the axis of inlet channel is 1~5mm；Then at this In the range of, gaseous mixture is more satisfactory to the effect of regulating valve valve deck, is less prone to valve deck unilateral side getter stream and is affected and blocks Situation ensures the stability in use of regulating valve.

Further, the regulating valve includes valve seat and valve deck, and the valve seat lower end is fixed on the inner wall of housing, and valve Spacing between the axis of seat and the axis of inlet channel is 1~5mm；The valve deck lid is closed on the upper surface of valve seat；It is described Valve seat is internally provided with guide pad, and the guide pad is equipped with slide opening, and the valve deck lower end is equipped with the slide bar being slidably matched with slide opening, The one end of the slide bar away from valve deck is equipped with limited block, is equipped between the limited block and guide pad and is answered for what is resetted to valve deck Position spring；The one end of the slide bar away from valve deck is equipped with screw thread, and limited block screws one end away from valve deck in slide bar；Then this knot The regulating valve structure of structure is simple, and parts are less, and is easily assembled to, and stability in use is also preferable.

Further, the upper surface of the valve seat is equipped at least two arc concave shapes, and arc concave shape is evenly distributed, institute Arc concave shape radially extending along valve seat is stated, and arc concave shape is open on the inside and outside wall of valve seat, the arc concave shape and valve seat Angle between upper surface is 0.5~5 °, and one end of the nearly valve seat outer wall of arc concave shape is higher than the nearly valve base inner wall of arc concave shape One end；After then arc concave shape is set so that in lid conjunction state, gaseous mixture can also be entered at filter core and filtered valve deck, and once When air-flow become greater to certain value, could open-top valve deck so that the use scope of regulating valve is wider, and valve deck activity relatively compared with Less and then it may be such that the service life of spring is also longer；And after the angle of arc concave shape and valve seat upper surface is set so that in arc The lubricating oil that shape indent is solidified and collected can be flowed to inside valve seat, can not only prevent the blocking at arc concave shape, also so that profit Lubricating oil is returned at inlet channel in cylinder body, reduces influence of the lubricating oil to filter element filtering efficiency at this, furthermore also so that mixing Gas is to strike obliquely on filter core under the guiding of arc concave shape so that the time of contact of gaseous mixture and filter core is longer, then The separative efficiency of gaseous mixture is also with regard to higher.

Preferably, the arc concave shape is eight；After so setting, air-flow is relatively scattered, and the impact of filter core is imitated Fruit is weaker, prevents filter core from by air-flow is broken up out or that breaks through happens, ensureing the service efficiency and service life of filter core.

Further, the upper surface of the valve seat is equipped with the arc convex of annular, the axis of arc convex and the axis of valve seat Line is on the same line；After then arc convex is set so that contact of the valve deck lower face with arc convex contacts for line, binding face Product smaller, is also just less susceptible to appear in situation about being sticked under the action of lubricating oil, so as to ensure the job stability of valve deck.

Further, the lower section of filter chamber is equipped with empty avoiding in the housing, and empty avoiding is connected with filter chamber, the clearance position In one side of the inlet channel away from oil return opening；After then empty avoiding is set, yield rate during housing injection can be not only improved, is being used It may also function as the effect of damping in the process, and may also function as after grease accumulation is in empty avoiding and inlet channel part is cooled down Effect so that more oil gas in inlet channel in gaseous mixture are solidified, play the role of improve separative efficiency.

Further, check valve is equipped at the oil return opening, the check valve includes one-way valve seat and circular rubber valve Piece, the oil return opening include collecting hole, confluence hole and return port from top to bottom successively, and the aperture for collecting hole is more than the hole of return port Footpath, the confluence hole are flared hole, and the aperture of confluence hole upper end is more than the aperture of confluence hole lower end and less than the hole for collecting hole Footpath, the aperture of confluence hole lower end are more than the aperture of return port, and the lower end of the return port is equipped with valve opening, and the aperture of valve opening is more than The aperture of return port, the one-way valve seat are connected to the lower end of oil return opening, and the rubber valve plate is located in valve opening, and rubber valve plate Outer diameter be more than the aperture of return port, the support ring to rubber valve plate support is equipped in the one-way valve seat, the support ring is near One end of one-way valve seat is equipped at least two through holes, and through hole is circumferentially uniformly distributed along support ring, is arc between the valve opening and return port Face transition；After then check valve is set, mixed gas can be effectively prevented by oil return opening into housing is caused, so as to ensure outlet The stability of mouth outlet；And the one-way valve structures of this structure are simple, parts are less, are easy to be molded, and simple installation is prepared into After this is relatively low, and cambered surface transition is set so that when rubber valve plate is mixed pneumatic jack, rubber valve plate is contacted with cambered surface transition face It is contacted for line, situation about being bonded during the contact of original face can be effectively prevented, so as to ensure the stability in use of rubber valve plate and can By property.

Description of the drawings

Fig. 1 is the structure diagram of the use for diesel engine Horizontal oil-gas separator of the utility model.

Fig. 2 is the enlarged drawing of part A in Fig. 1.

Fig. 3 is the enlarged drawing of the utility model use for diesel engine Horizontal oil-gas separator valve seat.

Fig. 4 is the sectional view of the line B-B along Fig. 3.

Fig. 5 is the enlarged drawing of the utility model use for diesel engine Horizontal oil-gas separator valve deck.

Fig. 6 is the efficiency analysis figure of the utility model use for diesel engine Horizontal oil-gas separator.

Wherein, 1, housing, 2, filter core, 3, filter chamber, 4, cushion chamber, 5, air inlet, 6, inlet channel, 7, gas outlet, 8, Oil return opening, 81, collect hole, 82, confluence hole, 83, return port, 84, valve opening, 9, regulating valve, 91, valve seat, 92, valve deck, 93, be oriented to Block, 94, slide opening, 95, slide bar, 96, limited block, 97, resetting spring, 98, arc concave shape, 99, arc convex, 10, step surface, 11st, empty avoiding, 12, one-way valve seat, 13, rubber valve plate, 14, support ring, 15, through hole.

Specific embodiment

The utility model is described in further detail with reference to the accompanying drawings and detailed description.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the utility model provides a kind of use for diesel engine Horizontal oil-gas separation Device, it includes housing 1 and filter core 2, and housing 1 is divide into upper part and lower part, and is convenient for the injection molding of housing 1 after so setting, up and down Housing 1 is formed after two parts welding, filter core 2 is existing filter core；Filter chamber 3 and cushion chamber 4,4 body of cushion chamber are equipped in housing 1 Product is 1.5~3 times of 3 volume of filter chamber, and filter chamber 3 is located at the horizontal one side of cushion chamber 4, and filter chamber 3 connects with cushion chamber 4 It is logical；The lower section of filter chamber 3 is equipped with the air inlet 5 entered for gaseous mixture on housing 1, and air inlet 5 passes through inlet channel 6 and filter chamber 3 connections, gaseous mixture enter inlet channel 6 from air inlet 5, and subsequent gaseous mixture enters filter core 2, gas is obtained after being filtered by filter core 2 Body enters filter chamber 3, and gas is discharged then into cushion chamber 4 and from gas outlet 7；The top of cushion chamber 4 is set on housing 1 There is gas outlet 7, and the lower section that cushion chamber 4 is crossed on housing 1 is equipped with oil return opening 8, the oil after filter core 2 filters can be from the bottom of filter chamber 3 Portion is flowed in cushion chamber 4, is then back to again from oil return opening 8 in cylinder body；Filter core 2 is located in filter chamber 3, and filter core 2 is ring junction Structure, the top of inlet channel 6 is equipped with regulating valve 9 in filter chamber 3, and the outer diameter of regulating valve 9 is less than the internal diameter of filter core 2 but more than air inlet The internal diameter of passage 6, regulating valve 9 is compared with 6 eccentric setting of inlet channel.

Air inlet 5 is located at the side of inlet channel 6, and air inlet 5 is located at one side of the inlet channel 6 away from oil return opening 8, and into The lower end sealing of gas passage 6,5 lower end of air inlet is concordant with the bottom surface of inlet channel 6, and such lubricating oil can be back to cylinder body in time It is interior.

The inner wall of 6 lower end of inlet channel is equipped with step surface 10,10 eccentric setting of step surface, and the area of step surface 10 is The 1/8~1/3 of 6 cross-sectional area of inlet channel, the height a of step surface 10 for 1~4mm (this example 3.5mm or 1mm, 2mm, 3mm or 4mm etc.).When side sets the setting of air inlet 5 and step surface 10 so that regulating valve 9 works after eccentric setting, 92 stress of valve deck is more uniform so that valve deck 92 is opened more flexibly and smooth.

Spacing between the axis of regulating valve 9 and the axis of inlet channel 6 is 1~5mm.

Regulating valve 9 includes valve seat 91 and valve deck 92, and 91 lower end of valve seat is fixed on the inner wall of housing 1, and the axis of valve seat 91 Spacing between the axis of line and inlet channel 6 is 1~5mm (this example 2.5mm or 1mm, 2mm, 3mm, 4mm or 5mm Etc.)；The lid of valve deck 92 is closed on the upper surface of valve seat 91；Valve seat 91 is internally provided with guide pad 93, and guide pad 93 is equipped with slide opening 94,92 lower end of valve deck is equipped with the slide bar 95 being slidably matched with slide opening 94, and the one end of slide bar 95 away from valve deck 92 is equipped with limited block 96, The resetting spring 97 resetted to valve deck 92 is equipped between limited block 96 and guide pad 93；The one end of slide bar 95 away from valve deck 92 Equipped with screw thread, limited block 96 is screwed in the one end of slide bar 95 away from valve deck 92, can so be started by limited block 96 according to difference The use demand of machine carries out different settings to the restoring force of resetting spring 97.

The upper surface of valve seat 91 be equipped at least two arc concave shapes 98 (this example is eight or two, three, five, Six or ten etc.), the radius of circle corresponding to arc concave shape 98 for 3~9mm (this example 5.5mm or 3mm, 4mm, 5mm, 8mm or 9mm etc.), the radial protrusion of arc is equipped on 91 inside and outside wall of valve seat at the position of arc concave shape 98, this is radially Protrusion so that arc concave shape 98 becomes apparent from the effect of gas flow guiding, while can also converge for extending the length of arc concave shape 98 Collect the lubricating oil solidified on more valve decks 92, and arc concave shape 98 is evenly distributed, arc concave shape 98 is prolonged along the radial direction of valve seat 91 It stretches, and arc concave shape 98 is open on the inside and outside wall of valve seat 91, the angle between 91 upper surface of arc concave shape 98 and valve seat is 0.5 ~5 ° (this example is 2.5 ° or 0.5 °, 1 °, 2 °, 3.5 ° or 5 ° etc.), and one end of 98 nearly 91 outer wall of valve seat of arc concave shape Higher than one end of 98 nearly 91 inner wall of valve seat of arc concave shape.

The upper surface of valve seat 91 is equipped with the arc convex 99 of annular, and the axis of arc convex 99 is with the axis of valve seat 91 same On one straight line；Arc convex 99 is divided into eight sections by arc concave shape 98.

The lower section of filter chamber 3 is equipped with empty avoiding 11 in housing 1, and the cross section of empty avoiding 11 is arc, and the center of circle of the arc exists On the axis of inlet channel 6, and empty avoiding 11 is connected with filter chamber 3, and empty avoiding 11 is located at one side of the inlet channel 6 away from oil return opening 8.

Check valve is equipped at oil return opening 8, check valve includes one-way valve seat 12 and circular rubber valve plate 13, one-way valve seat 12 It screws at oil return opening 8, oil return opening 8 includes collecting hole 81, confluence hole 82 and return port 83 from top to bottom successively, collects hole 81 Aperture is more than the aperture of return port 83, and confluence hole 82 is flared hole, and the aperture of confluence 82 upper end of hole is more than confluence 82 lower end of hole Aperture and less than collecting the aperture in hole 81, the aperture of confluence 82 lower end of hole is more than the aperture of return port 83, under return port 83 End is equipped with valve opening 84, and the aperture of valve opening 84 is more than the aperture of return port 83, and one-way valve seat 12 is connected to the lower end of oil return opening 8, Rubber valve plate 13 is located in valve opening 84, and the outer diameter of rubber valve plate 13 is more than the aperture of return port 83, is equipped in one-way valve seat 12 To the support ring 14 that rubber valve plate 13 supports, one end of 14 nearly one-way valve seat 12 of support ring is equipped at least two through holes 15, so It is that gaseous mixture is not easy to be easier to be applied directly on rubber valve plate 13 by 15 water conservancy diversion of through hole to enter one-way valve seat 12 after setting, is made It obtains rubber valve plate 13 to be easier to be jacked up and play the role of blocking, through hole 15 is square hole, and through hole 15 is circumferential along support ring 14 It is uniformly distributed, it is cambered surface transition between valve opening 84 and return port 83.

In the description of the utility model, it is to be understood that term " top " is closed based on direction shown in the drawings or position System.

The utility model preferred embodiment is described above, but is not to be construed as limiting the scope of the invention. The utility model is not only limited to above example, and concrete structure is allowed to vary, all in the utility model demand for independence The various change made in protection domain is within the protection scope of the present utility model.

Claims (10)

1. a kind of use for diesel engine Horizontal oil-gas separator, it includes housing (1) and filter core (2), it is characterised in that：The housing (1) filter chamber (3) and cushion chamber (4) are equipped in, filter chamber (3) is located at the one side of cushion chamber (4) transverse direction, and filter chamber (3) and Cushion chamber (4) connects；The lower section of filter chamber (3) is equipped with the air inlet (5) for Gong being mixed into, air inlet (5) on the housing (1) It is connected by inlet channel (6) with filter chamber (3)；The top of cushion chamber (4) is equipped with gas outlet (7) on the housing (1), and shell On body (1) cushion chamber (4) lower section be equipped with oil return opening (8)；The filter core (2) is located in filter chamber (3), and filter core (2) is ring Shape structure, the top of the interior inlet channel of the filter chamber (3) (6) are equipped with regulating valve (9), and the outer diameter of regulating valve (9) is less than filter core (2) internal diameter but more than the internal diameter of inlet channel (6), the regulating valve (9) is compared with inlet channel (6) eccentric setting.

2. use for diesel engine Horizontal oil-gas separator according to claim 1, it is characterised in that：The air inlet (5) is located at The side of inlet channel (6), and the lower end sealing of inlet channel (6).

3. use for diesel engine Horizontal oil-gas separator according to claim 2, it is characterised in that：Under the inlet channel (6) It is inlet channel that the inner wall at end, which is equipped with step surface (10), step surface (10) eccentric setting, and the area of step surface (10), (6) the 1/8~1/3 of cross-sectional area, the height a of step surface (10) is 1~4mm.

4. use for diesel engine Horizontal oil-gas separator according to claim 1, it is characterised in that：The axis of the regulating valve (9) Spacing between the axis of line and inlet channel (6) is 1~5mm.

5. use for diesel engine Horizontal oil-gas separator according to claim 1, it is characterised in that：The regulating valve (9) includes Valve seat (91) and valve deck (92), valve seat (91) lower end are fixed on the inner wall of housing (1), and the axis of valve seat (91) with into Spacing between the axis of gas passage (6) is 1~5mm；Valve deck (92) lid is closed on the upper surface of valve seat (91)；The valve Seat (91) is internally provided with guide pad (93), and the guide pad (93) is equipped with slide opening (94), valve deck (92) lower end be equipped with The slide bar (95) that slide opening (94) is slidably matched, the one end of the slide bar (95) away from valve deck (92) is equipped with limited block (96), described The resetting spring (97) resetted to valve deck (92) is equipped between limited block (96) and guide pad (93)；The slide bar (95) is remote One end from valve deck (92) is equipped with screw thread, and limited block (96) screws one end away from valve deck (92) in slide bar (95).

6. use for diesel engine Horizontal oil-gas separator according to claim 5, it is characterised in that：The upper end of the valve seat (91) Face is equipped at least two arc concave shapes (98), and arc concave shape (98) is evenly distributed, and the arc concave shape (98) is along valve seat (91) radially extend, and arc concave shape (98) is open on the inside and outside wall of valve seat (91), the arc concave shape (98) and valve seat (91) angle between upper surface is 0.5~5 °, and one end of nearly valve seat (91) outer wall of arc concave shape (98) is higher than arc concave shape (98) one end of nearly valve seat (91) inner wall.

7. use for diesel engine Horizontal oil-gas separator according to claim 6, it is characterised in that：The arc concave shape (98) is Eight.

8. use for diesel engine Horizontal oil-gas separator according to claim 5 or 6, it is characterised in that：The valve seat (91) Upper surface is equipped with the arc convex (99) of annular, and the axis of arc convex (99) and the axis of valve seat (91) are on the same line.

9. the use for diesel engine Horizontal oil-gas separator according to claim 1 or 2 or 5, it is characterised in that：The housing (1) The lower section of interior filter chamber (3) is equipped with empty avoiding (11), and empty avoiding (11) is connected with filter chamber (3), and the empty avoiding (11) is located at air inlet One side of the passage (6) away from oil return opening (8).

10. the use for diesel engine Horizontal oil-gas separator according to claim 1 or 2 or 5, it is characterised in that：The oil return opening (8) check valve is equipped at, the check valve includes one-way valve seat (12) and circular rubber valve plate (13), the oil return opening (8) Include collecting hole (81), confluence hole (82) and return port (83) successively from top to bottom, the aperture for collecting hole (81) is more than return port (83) aperture, confluence hole (82) are flared hole, and the aperture of confluence hole (82) upper end is more than confluence hole (82) lower end Aperture and less than the apertures of hole (81) is collected, the aperture of confluence hole (82) lower end is more than the aperture of return port (83), the reflux The lower end in hole (83) is equipped with valve opening (84), and the aperture of valve opening (84) is more than the aperture of return port (83), the one-way valve seat (12) lower end of oil return opening (8) is connected to, the rubber valve plate (13) is located in valve opening (84), and the outer diameter of rubber valve plate (13) The support ring (14) to rubber valve plate (13) support, institute are equipped with more than the aperture of return port (83), in the one-way valve seat (12) The one end for stating the nearly one-way valve seat (12) of support ring (14) is equipped at least two through holes (15), and through hole (15) is circumferential along support ring (14) It is uniformly distributed, it is cambered surface transition between the valve opening (84) and return port (83).