CN104454079B - The centrifugal anti-leak fine filter of machine oil and its engine - Google Patents
The centrifugal anti-leak fine filter of machine oil and its engine Download PDFInfo
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- CN104454079B CN104454079B CN201410676732.2A CN201410676732A CN104454079B CN 104454079 B CN104454079 B CN 104454079B CN 201410676732 A CN201410676732 A CN 201410676732A CN 104454079 B CN104454079 B CN 104454079B
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- oil
- fine filter
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- mounting seat
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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
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Centrifugal Separators (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of centrifugal anti-leak fine filter of machine oil and its engine, including for being installed on crankshaft end with it in the fine filter mounting seat of circumferencial direction secure fit and closure for being collectively forming fine filter chamber with fine filter mounting seat, it is tightly connected positioned at fine filter intracavitary and fine filter mounting seat in circumferencial direction provided with centrifugation plate, closure is provided with oil-feed tube coupling, the oil-feed tube coupling gos deep into the oil road of crankcase cover in the way of being rotatably assorted and seal connection, the present invention maintains all advantages that existing fine filter has, and the structure being engaged using oil-feed tube coupling with crankcase cover oil road, existing end face seal is changed to predominantly axial seal, processing technology is preferable, avoid oil leak caused by plane machining error, so as to avoid the leakage of lubricating oil during isolation of purified, and simplified processing process, ensure the normal operation of engine.
Description
Technical field
The present invention relates to a kind of engine accessory part and its engine, more particularly to a kind of lubrication oil filtration equipment and its
Engine.
Background technology
Centrifugal fine filter is that engine is used to purify lubricating oil, it is ensured that the visual plant that each friction pair is normally run.
Centrifugal fine filter is usually to be rotated by the rotation driving centrifugal fine filter of bent axle and utilize the centrifugal force of centrifugal flow guiding part
Lubricating oil is purified, effect is more obvious.Centrifugal fine filter generally comprises housing and the centrifugal flow guiding part in housing, profit
Lubricating oil enter housing in after by centrifugal action along centrifugal flow guiding part mobile, the big solid particle of density be located at centrifugation diameter
Distalmost end, by it is paracentral be clean lubricating oil.
In the prior art, in order to ensure that still there is preferable isolation of purified effect during low speed, using overall centrifugation point
From hardened structure, larger separation centrifugal force is produced when rotating, still has under relatively low speed conditions and preferably centrifuged
Filter ability, and with relatively small radial dimension, installing space is saved, it is convenient to install, dismantle and clean.But, due to
Move and coordinate provided with oily siphunculus on the closure of fine filter, and the oily siphunculus fitted using spring compression with crankcase cover end face it is close
Envelope, the sealing structure is higher to end face requirement on machining accuracy, if flatness does not reach requirement, can cause letting out for lubricating oil
, so as to cause the lubrication of lubricant housings not abundant enough, and there is accident in leakage.
Accordingly, it would be desirable to be improved to existing centrifugal fine filter, not only have in the slow-speed of revolution and preferably centrifuged
Effect is filtered, with relatively small radial dimension, installing space is saved, letting out for lubricating oil is also avoided during isolation of purified
Leakage, and simplified processing process, it is ensured that the normal operation of engine.
The content of the invention
In view of this, the present invention provides a kind of centrifugal anti-leak fine filter of machine oil and its engine, not only in the slow-speed of revolution
When there is preferable centrifugal filtration effect, with relatively small radial dimension, installing space is saved, also in isolation of purified process
In avoid the leakage of lubricating oil, and simplified processing process, it is ensured that the normal operation of engine.
The centrifugal anti-leak fine filter of machine oil of the present invention, including it is solid in circumferencial direction with it for being installed on crankshaft end
Surely the fine filter mounting seat coordinated and the closure for being collectively forming fine filter chamber with fine filter mounting seat, positioned at fine filter chamber
Interior to be tightly connected with fine filter mounting seat in circumferencial direction provided with plate is centrifuged, closure is provided with oil-feed tube coupling, the oil inlet pipe
Section gos deep into the oil road of crankcase cover in the way of being rotatably assorted and seal connection；The fine filter mounting seat passes through spline drived
Coordinate and be coated on the thin axle of crankshaft end formation, and screw thread coordinates provided with the locking screw for tightening fine filter mounting seat on thin axle
It is female；Hardened structure is centrifuged using overall, it is to avoid because the cyclic structure that prior art is coated at bent axle is centrifuged, radius is less to ask
Inscribe, without being installed on bent axle, whole separating plate has larger centrifugation radius, thus larger separation is produced when rotating and centrifuge
Power, still has preferable centrifugal filtration ability under relatively low speed conditions；In the present invention, oil-feed tube coupling and the oil road it
Between fit clearance should be as far as possible small, not influence being rotatably assorted and not leaking lubricating oil and be defined for the two；O-ring can be used, filled out
The auxiliary seal modes such as material, can also directly coordinate the mode for controlling fit clearance；The fit system and existing oily siphunculus
Structure is simultaneously by stage clip compared with crankcase cover is fitted, it is to avoid because part processing flatness difference and caused by oil leak ask
Topic.
Further, closure and oil-feed tube coupling are integrally formed and by punch forming, simple in construction, and shaping is easy, punching press
Shaping is general to be used as moulding material, reduction holistic cost using steel.
Further, the length that the oil-feed tube coupling stretches into the oil road of crankcase cover is 5mm~6.5mm；The built-in length
Scope ensure that the excellent sealing between oil road and oil-feed tube coupling, so as to prevent the leakage of lubricating oil.
Further, the oil-feed tube coupling periphery formation shaft shoulder, the shaft shoulder withstands the port of export of the oil road of crankcase cover
Face；Because closure is in itself by steel punch forming, with certain elasticity, there is less pretightning force, the end after withstanding
Face coordinates the sealing of the whole oil circuit of auxiliary, further prevents leakage.
Further, fine filter chamber is divided into preceding refined filtration chamber and rear refined filtration chamber, the centrifugation plate by the centrifugation plate
On be provided with the oil-through hole for connecting preceding refined filtration chamber and rear refined filtration chamber, the preceding fine filter chamber is connected with the oil road of crankcase cover, after
Refined filtration chamber is connected with the fuel feed hole on bent axle；The size of oil-through hole is so that smooth flow through of lubricating oil is defined, in centrifugal filtration process,
Impurity, in fine filter chamber radially outer edge, and relative with the lubricating oil of flowing is separated by centrifugal force Direct precipitation, it is ensured that lubricating oil
Cleaning；And in the prior art, it is located at what is formed between the edge and housing that centrifuge plate for the passage by lubricating oil
Gap, and according to the work principle of filter of fine filter, impurity can also accumulate in edge by the effect of centrifugal force so that lubricating oil with it is miscellaneous
Convergence is blocked up again after matter separation, continues to separate in secondary centrifuging (centrifuge plate inner surface), and impurity is endless to be gathered and collect
And with lubricating oil common-use tunnel, cause to make isolation of purified effect gradually be deteriorated with the extension of usage cycles；And the present invention
Structure then solves above mentioned problem well, and oil-through hole not only improves the bonding strength of centrifugation plate, also in isolation of purified
During avoid collecting again for lubricating oil and impurity, with more preferable separating effect, and with the extension of usage cycles, point
Do not have poor influence from effect.
Further, the oil-through hole is apart from the equal setpoint distance of the radially outward edge of heart separating plate and center；Distance is radially
Outward flange setpoint distance is to avoid the impurity gathered from being flowed by oil-through hole, to ensure the cleaning of oil product, meanwhile, with oil-through hole away from
The center setpoint distance for centrifuging plate is to avoid lubricating oil from not taken away by centrifuging by oil-through hole flowing directly
Impurity, the distance of setting can make impurity accelerate to precipitate to edge, so as to form preliminary separation when lubricating oil enters oil-through hole
Purification.
Further, the oil-through hole is distributed uniformly and circumferentially to be multiple；Ensure the balance of centrifugation plate, together
When, with sufficiently large grease channel.
Further, the plate that centrifuges is the pyramidal structure gradually expanded to closure direction, and oil-through hole is located at taper
The conical surface of structure；Oil-through hole is arranged at the conical surface, and the centrifugation component certain by being formed to lubricating oil is promoted, and accelerates to moisten in oil-through hole
Lubricating oil passes through, and ensures separating effect.
Further, it is plane formation taper type disk-like structure to centrifuge the conical top of plate；The structure is beneficial to reduce essence
The axial dimension of filter, meanwhile, perfectly radial centrifugal force can be formed initial stage in filtering, point between increase impurity and lubricating oil
From efficiency, beneficial to realizing preferable purification separation in the conical surface separation process in later stage.
Further, the oil-through hole be located at centrifuge plate away from the 1/4-1/2 at the top of taper type disk-like structure at；The parameter
Scope can make the impurity for being collected in edge be not easy to be mixed into lubricating oil runner, keep the cleaning of oil product, and beneficial to impurity from
Oil-through hole, which is crossed, under mental power function is deposited on edge.
Further, the inner chamber of the fine filter mounting seat is the bell mouth shape adaptable with centrifuging plate shape, described
Centrifuge plate radially outward edge and form the annular edge of a wing, annular edge of a wing sealing be pressed together on closure and fine filter mounting seat it
Between；Fine filter mounting seat uses bell mouth shape, and radial dimension is increased beneficial in limited space, so that relative increase centrifugation point
From the radial dimension of plate, the centrifugation ability during increase slow-speed of revolution；As illustrated, the annular edge of a wing is pressed together on by sealing gasket
Between fine filter mounting seat radial edges and closure, not only with preferable bonding strength and ensure to centrifuge plate in itself
Intensity, also makes structural integrity strong, simple compact.
Further, 20 °~60 ° of the taper of the conical surface for centrifuging plate；The centrifugation plate reasonable distribution of the taper
Along conical surface direction and perpendicular to conical surface direction centrifugation component, impurity is avoided to enter oil duct as far as possible, meanwhile, it is additionally favorable for lubrication
Oil is smooth by oil-through hole under rational centrifugal force, improves separative efficiency.
The invention also discloses a kind of engine, the engine is provided with the described centrifugal anti-leak refined filtration of machine oil
Device.
Beneficial effects of the present invention：The centrifugal anti-leak fine filter of machine oil and its engine of the present invention, using entirety
Centrifuge hardened structure, maintain all advantages that existing fine filter has, that is, ensure the globality of bent axle, processability and
Bulk strength, whole separating plate has larger centrifugation radius, thus produces larger separation centrifugal force when rotating, relatively low
Speed conditions under still there is preferable centrifugal filtration ability, meanwhile, such as using the fuel-displaced knot in existing side oil-feed side
Structure, then avoid, into fuel-displaced straight-through, increasing the efficiency of centrifugal filtration, is installed on engine and has in the slow-speed of revolution and preferably centrifuged
Effect is filtered, and there is relatively small radial dimension, installing space, convenient installation, dismounting and cleaning, it is adaptable to motor is saved
The engine of the roadsters such as car is used；The structure being importantly engaged using oil-feed tube coupling with crankcase cover oil road, will
Existing end face seal is changed to predominantly axial seal, and processing technology is preferable, it is to avoid lubricating oil caused by plane machining error
Leakage, so that the leakage of lubricating oil is avoided during isolation of purified, and simplified processing process, it is ensured that the normal fortune of engine
OK.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is sectional view of the invention；
Fig. 2 is fine filter mounting seat end view.
Embodiment
Fig. 1 is the sectional view of the present invention, and Fig. 2 is fine filter mounting seat end view, as shown in the figure：The machine oil of the present embodiment
Centrifugal anti-leak fine filter, including for be installed on crankshaft end with its circumferencial direction secure fit fine filter mounting seat
1 and for being collectively forming the closure 4 of fine filter chamber with fine filter mounting seat 1, positioned at fine filter intracavitary and fine filter mounting seat 1
It is tightly connected in circumferencial direction provided with plate 3 is centrifuged, closure 4 is integrally formed with oil-feed by punch forming, closure 4
Tube coupling 6, the oil-feed tube coupling 6 gos deep into the oil road 8 of crankcase cover 7, and oil-feed tube coupling 6 in the way of being rotatably assorted and seal connection
Fit clearance between the oil road 8 should be as far as possible small, not influence being rotatably assorted and not leaking lubricating oil and be defined for the two；Can
Using the auxiliary seal mode such as O-ring, filler；The fit system is with existing oily through-pipe structure and by stage clip and crankcase cover
7 laminatings are compared, it is to avoid because part processing flatness difference and caused by oil leak problem；As illustrated, the fine filter peace
Dress seat 1 is coordinated by spline drived to be coated on the thin axle 12 of crankshaft end formation, and screw thread cooperation is provided with essence on thin axle 12
The locking nut 11 that filter mounting seat 1 is tightened；The structure of plate 3 is centrifuged using overall, it is to avoid because prior art is coated at bent axle
Cyclic structure centrifugation the less problem of radius, without being installed on bent axle, whole separating plate has larger centrifugation radius, thus
Larger separation centrifugal force is produced when rotating, still there is preferable centrifugal filtration ability under relatively low speed conditions.
In the present embodiment, the length that oil-feed tube coupling 6 stretches into the oil road 8 of crankcase cover 7 is 5mm~6.5mm, the present embodiment
Using 6mm, suitable numerical value is chosen according to oil mass size within the range；The built-in length scope ensure that oil road 8 with entering
Excellent sealing between oil pipe section 6, so as to prevent the leakage of lubricating oil.
In the present embodiment, the periphery of the oil-feed tube coupling 6 formation shaft shoulder 5, the shaft shoulder 5 withstands the oil road 8 of crankcase cover 7
Exit end face；Because closure 4 itself is by steel punch forming, have with certain elasticity, after withstanding less pre-
Clamp force, the end face coordinates the sealing of the whole oil circuit of auxiliary, further prevents leakage.
In the present embodiment, fine filter chamber is divided into preceding refined filtration chamber and rear refined filtration chamber, the centrifugation point by the centrifugation plate 3
From the oil-through hole 9 that the preceding refined filtration chamber 10 of connection and rear refined filtration chamber 2 are provided with plate 3, the preceding fine filter chamber 10 goes out with crankcase cover 7
Oil duct 8 is connected, and rear refined filtration chamber 2 is connected with the fuel feed hole on bent axle, and as lubricating oil is moved towards shown in arrow in figure；Oil-through hole 9
Size is so that smooth flow through of lubricating oil is defined, and in centrifugal filtration process, impurity is by centrifugal force Direct precipitation in fine filter chamber footpath
To outer rim, and relative with the lubricating oil of flowing separate, it is ensured that the cleaning of lubricating oil；And in the prior art, for passing through lubricating oil
Passage be located at the gap that is formed between the edge and housing that centrifuge plate, and according to the work principle of filter of fine filter, impurity leads to
Edge can also be accumulated in by crossing the effect of centrifugal force so that lubricating oil blocks up convergence again after being separated with impurity, in secondary centrifuging (centrifugation point
From plate inner surface) continue to separate, impurity is endless gather collect and with lubricating oil common-use tunnel, cause with usage cycles
Extension and isolation of purified effect is gradually deteriorated；And the structure of the present invention then solves above mentioned problem well, oil-through hole is not
But the bonding strength of centrifugation plate is improved, collecting again for lubricating oil and impurity is also avoided during isolation of purified, is had
There is more preferable separating effect, and with the extension of usage cycles, separating effect does not have poor influence.
In the present embodiment, the oil-through hole 9 is apart from the equal setpoint distance of the radially outward edge of heart separating plate 3 and center；Away from
It is to avoid the impurity gathered from being flowed by oil-through hole from radially outward edge setpoint distance, to ensure the cleaning of oil product, meanwhile, with mistake
Oilhole is to avoid lubricating oil from not flowed by centrifuging by oil-through hole directly apart from the center setpoint distance of heart separating plate
And impurity is taken away, the distance of setting can make impurity accelerate to precipitate to edge, so as to form preliminary when lubricating oil enters oil-through hole
Isolation of purified.
In the present embodiment, the oil-through hole 9 is distributed uniformly and circumferentially to be multiple；It is general to use two, three or four
It is individual preferably to realize goal of the invention, it is ensured that to centrifuge the balance of plate, meanwhile, with sufficiently large grease channel.
In the present embodiment, the plate 3 that centrifuges is the pyramidal structure gradually expanded to the direction of closure 4, and oil-through hole 9 is set
In the conical surface of pyramidal structure；Oil-through hole 9 is arranged at the conical surface, and the centrifugation component certain by being formed to lubricating oil is promoted, and is accelerated
Lubricating oil in oil hole passes through, and ensures separating effect.
In the present embodiment, it is plane formation taper type disk-like structure to centrifuge the conical top of plate 3；The structure is beneficial to subtract
The axial dimension of small fine filter, meanwhile, perfectly radial centrifugal force can be formed initial stage in filtering, between increase impurity and lubricating oil
Separative efficiency, beneficial to realizing preferable purification separation in the conical surface separation process in later stage.
In the present embodiment, the oil-through hole 9 be located at centrifuge plate 3 away from the 1/4-1/2 at the top of taper type disk-like structure at；
The parameter area can make the impurity for being collected in edge be not easy to be mixed into lubricating oil runner, keep the cleaning of oil product, and beneficial to miscellaneous
Matter crosses oil-through hole and is deposited on edge under the action of the centrifugal force；In the present embodiment, the oil-through hole is located at separating plate away from taper type
At the top of disk-like structure 1/3 at, the position ensure that lubricating oil passes through speed during oil-through hole, it is to avoid it is too fast by so as not to folder
Impurity, and beneficial to the centrifugation for ensureing impurity.
In the present embodiment, the inner chamber of the fine filter mounting seat 1 is the horn mouth adaptable with centrifuging the shape of plate 3
Shape, the radially outward edge of centrifugation plate 3 forms the annular edge of a wing, and the annular edge of a wing sealing is pressed together on closure 4 and fine filter
Between mounting seat 1；Certainly, the annular edge of a wing is provided with the screw via for being used for pressing connection；The annular edge of a wing have radially to
Interior extension section；Increase radial dimension beneficial in limited space, so that the radial dimension of relative increase separating plate, increases low
Centrifugation ability during rotating speed；As illustrated, the annular edge of a wing is pressed together on the radial edges of fine filter mounting seat 1 by sealing ring
Between closure 4, not only the intensity with preferable bonding strength and guarantee separating plate in itself, also makes structural integrity strong,
It is simple compact；The annular edge of a wing has extension section radially inward, and extension section forms complete footpath after impurity centrifugation
To centrifugal force, so as to ensure that impurity will not flow back；As illustrated, the outer rim on the annular edge of a wing be also along the circumferential direction distributed with it is radially recessed
Groove, closure 4 has the fixed claw for being used for coordinating with radial groove, and the fixed claw is forced to bend axial retaining ring shape after assembling
The edge of a wing, the structure is applied to being tightly connected between the separating plate of finite thickness and closure, it is ensured that bonding strength.
Fine filter mounting seat 1 uses bell mouth shape, and radial dimension is increased beneficial in limited space, so that relative increase
The radial dimension of plate is centrifuged, the centrifugation ability during increase slow-speed of revolution makes full use of fine filter to be located at crankshaft end
Feature, the installation for centrifuging plate can be realized using simple pressing structure, and easy to disassemble and replacing also allows for fine filter clear
Wash；Bell-mouth structure of air is more conducive to the curve trend centrifuged, impurity (filter residue) is flowed to edge, it is to avoid enter bent
Axle fuel feed hole causes secondary pollution；In the present embodiment, the sealing surface formation annular surface on the annular edge of a wing, the horizontal stroke of annular surface
Section is the flute profile seamlessly transitted；Annular surface is similar to the waterline of seal face, and sealing ring can be placed in the annular surface
(such as O-ring), sealing ring formation sealing after pressing, and the deformable formation pretightning force of annular surface, strengthen sealing effectiveness；Sealing surface
That is stitching surface.
As illustrated, the annular edge of a wing by sealing gasket be pressed together on the radial edges of fine filter mounting seat 1 and closure 4 it
Between, the intensity of plate in itself not only is centrifuged with preferable bonding strength and guarantee, also makes structural integrity strong, it is simple tight
Gather.
In the present embodiment, 20 °~60 ° of the taper of the conical surface for centrifuging plate 3 enters according to the range of revolution of engine
Row selection, be typically chosen 30 °~45 ° it is appropriate, the present embodiment be 38 °；The centrifugation plate reasonable distribution of the taper is along the conical surface
Direction and the centrifugation component perpendicular to conical surface direction, avoid impurity from entering oil duct as far as possible, meanwhile, be additionally favorable for lubricating oil conjunction
It is smooth by oil-through hole under the centrifugal force of reason, improve separative efficiency.
In the present embodiment, the inwall of the fine filter mounting seat is formed between radially inner boss 14, adjacent lands 14
Form debris storage area；Foregoing debris storage area is formed between adjacent lands 14, impurity is under larger centrifugal action
Into the space, due to the limitation of above-mentioned boss 14, will not occur the movement of circumferencial direction, in geo-stationary and deposition shape
State, so that secondary pollution will not be carried out to oil product, the lateral cross section of boss 14 is generally smooth line style, it is ensured that at the top of boss
Impurity will not be gathered, the efficiency of separation is further ensured that；The general lateral cross section for making boss is circular arc, easy to process and have
Preferable intensity, for impurity, with more preferable shuffle effect；The boss 14 is located at the inner chamber of fine filter mounting seat 1
Diameter maximum, and boss 14 is circumferentially formed thereon closing space in the range of its radial dimension；The closing space can be with
It is that fine filter mounting seat is formed after coordinating with miscellaneous part after fine filter miscellaneous part is installed or itself is formed；Install
Rear boss axial direction two ends form closing, it is to avoid the rear impurity that runs at high speed formation flowing, it is ensured that the cleaning of oil product；The fine filter peace
The inner chamber for filling seat 1 is bell-mouth structure of air, and the boss 14 is located at bell-mouthed diameter maximum；Ensure that centrifugal force is completely acted on
In impurity, separating effect is improved, the inner chamber of fine filter mounting seat uses bell mouth shape, increased radially beneficial in limited space
Size, so that centrifugation ability during the relative increase fine filter slow-speed of revolution；The horn mouth correspondence of the inner chamber of fine filter mounting seat
End face be seal face for installing fine filter closure, be arranged at intervals with the boss for closure 4 to be fixedly mounted
Installation position；, as illustrated, the installation position 13 also forms the smooth interior male structure to convex, increase the bonding strength of closure,
Guarantee will not deform in itself, with preferable bonding strength, so as to ensure good sealing；Meanwhile, interior male structure is also
Certain storage impurity effect is played jointly with boss, as illustrated, installation position is the screwed hole for being used to screw in screw.
The invention also discloses a kind of engine, the engine is provided with the described centrifugal anti-leak refined filtration of machine oil
Device.
In the present invention, front and back position is referred to：Before next oily direction is, and crankcase cover side.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (9)
1. a kind of centrifugal anti-leak fine filter of machine oil, it is characterised in that：Including for being installed on crankshaft end with it in circumference
The fine filter mounting seat of direction secure fit and the closure for being collectively forming fine filter chamber with fine filter mounting seat, positioned at essence
Filter intracavitary is tightly connected provided with plate is centrifuged with fine filter mounting seat in circumferencial direction, and closure is provided with oil-feed tube coupling, should
Oil-feed tube coupling gos deep into the oil road of crankcase cover in the way of being rotatably assorted and seal connection；The oil-feed tube coupling periphery is formed
The shaft shoulder, the shaft shoulder withstands the exit end face of the oil road of crankcase cover.
2. the centrifugal anti-leak fine filter of machine oil according to claim 1, it is characterised in that：Closure and oil-feed tube coupling one
It is body formed and pass through punch forming.
3. the centrifugal anti-leak fine filter of machine oil according to claim 1, it is characterised in that：The oil-feed tube coupling stretches into song
The length of the oil road of axle box cover is 5mm~6.5mm.
4. the centrifugal anti-leak fine filter of machine oil according to claim 1, it is characterised in that：The plate that centrifuges is by essence
Filter chamber, which is divided into being provided with preceding refined filtration chamber and rear refined filtration chamber, the centrifugation plate, connects the excessively oily of preceding refined filtration chamber and rear refined filtration chamber
Hole, the preceding fine filter chamber is connected with the oil road of crankcase cover, and rear refined filtration chamber is connected with the fuel feed hole on bent axle.
5. the centrifugal anti-leak fine filter of machine oil according to claim 4, it is characterised in that：The oil-through hole is apart from the heart point
From the equal setpoint distance of the radially outward edge of plate and center.
6. the centrifugal anti-leak fine filter of machine oil according to claim 4, it is characterised in that：It is described centrifugation plate be to
The pyramidal structure that closure direction gradually expands, oil-through hole is located at the conical surface of pyramidal structure.
7. the centrifugal anti-leak fine filter of machine oil according to claim 6, it is characterised in that：Centrifuge the taper top of plate
Portion is plane formation taper type disk-like structure；20 °~60 ° of the taper of the conical surface for centrifuging plate.
8. the centrifugal anti-leak fine filter of machine oil according to claim 6 or 7, it is characterised in that：The oil-through hole is located at
Centrifuge plate away from the 1/4-1/2 at the top of taper type disk-like structure at.
9. a kind of engine, it is characterised in that：The engine is provided with the centrifugal anti-leak of machine oil described in claim 1-8
Fine filter.
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| CN201410676732.2A CN104454079B (en) | 2014-11-21 | 2014-11-21 | The centrifugal anti-leak fine filter of machine oil and its engine |
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| CN104806325B (en) * | 2015-04-14 | 2018-02-02 | 重庆隆鑫发动机有限公司 | Centrifugal fine filter and its engine |
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|---|---|---|---|---|
| US20020128140A1 (en) * | 1998-04-16 | 2002-09-12 | Filterwerk Mann & Hummel Gmbh | Free Jet centrifuge rotor |
| CN102661184A (en) * | 2012-05-21 | 2012-09-12 | 隆鑫通用动力股份有限公司 | Forced centrifugal fine filter and engine of forced centrifugal fine filter |
| CN203321625U (en) * | 2013-06-26 | 2013-12-04 | 重庆宗申发动机制造有限公司 | Machine oil filter used on engine |
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| Publication number | Publication date |
|---|---|
| CN104454079A (en) | 2015-03-25 |
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Effective date of registration: 20191216 Address after: 529700 district a, Heshan industrial city, Heshan City, Jiangmen City, Guangdong Province Patentee after: Guangdong Longxin Locomotive Co., Ltd. Address before: The 400052 District of Chongqing Kowloon Park C District Patentee before: Chongqing Longxin Engine Ltd. |