CN108547708A - A kind of gasoline engine crankshaft box body - Google Patents
A kind of gasoline engine crankshaft box body Download PDFInfo
- Publication number
- CN108547708A CN108547708A CN201810329399.6A CN201810329399A CN108547708A CN 108547708 A CN108547708 A CN 108547708A CN 201810329399 A CN201810329399 A CN 201810329399A CN 108547708 A CN108547708 A CN 108547708A
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- China
- Prior art keywords
- oil
- labyrinth chamber
- gasoline engine
- partition board
- engine crankshaft
- Prior art date
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- 238000005192 partition Methods 0.000 claims description 71
- 230000007246 mechanism Effects 0.000 claims description 22
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 210000001364 upper extremity Anatomy 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 92
- 239000007789 gas Substances 0.000 description 50
- 239000010721 machine oil Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 239000000306 component Substances 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000010705 motor oil Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004047 hole gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/006—Camshaft or pushrod housings
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M13/0405—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in covering members apertures, e.g. caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0433—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a deflection device, e.g. screen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0461—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a labyrinth
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to a kind of gasoline engine crankshaft box body, the crankcase includes case ontology, cylinder block, hydraulic tappet, gs-oil separator, oil filter；The cylinder block is arranged on case ontology；The case ontology is made of panel body and side surface body；The side surface body is enclosed in the edge of panel body；The side surface body bottom is equipped with expanded hole；The side surface body side is equipped with oil inlet, oil outlet, pipe fitting, oil drain pan；The oil filter is directly connect with case ontology by pipe fitting.Its advantage is shown：A kind of gasoline engine crankshaft box body of the present invention, simple in structure, low manufacture cost improve Oil-gas Separation, leakproofness is easy to control, without valve gap adjustment and repeats to mold, Used Number of Parts And Components is reduced, product weight is reduced, makes the use demand that product enhances function simultaneously, improves competitiveness.
Description
Technical field
The present invention relates to crankcase for petro engine technical fields, specifically, being a kind of gasoline engine crankshaft box body.
Background technology
With the development of society, various types of motor vehicles emerge one after another, people’s lives are facilitated.And it is most of motor-driven
Vehicle is using gasoline as fuel, and gasoline engine has become a necessary parts of many motor vehicles, and gasoline engine crankshaft box body is vapour
A core component in oil machine.Its effect is to accommodate and support all parts in it, ensures the correct position between them
It sets, makes each part that can operate and work in phase each other.
However, crankcase in the prior art has the following defects and deficiency：
First, when gasoline engine work operating, gas (revealing gas) is entered by cylinder in crankshaft space, is revealed in gas
Including unburned heat and all waste gases ingredient, the petrol engine oil that they are formed in crankshaft space with mist of oil mix, make in pressure
Under, machine oil can be pressed to the oil outlet of sealing station, in order to avoid the above situation occurs, use Oil-gas Separation in the prior art
Device detaches machine oil and gas, machine oil reflux, gas discharge, however, gs-oil separator in the prior art using leaf valve and
Reed forms, and structure is relative complex, and cost of manufacture, difficulty are higher, and larger to leakproofness control difficulty, cannot improve oil gas point
From.
Secondly, in existing crankcase, it is provided with mounting base between babinet and oil filter, i.e., must increases the part
Can install oil rectifier, of high cost, and structure, technique are more complex.
In addition, existing crankcase cannot preserve between valve there are certain valve clearance, need to existing valve
Gap is adjusted, cumbersome.So-called valve clearance, as gasoline engine are when cold conditions is assembled, in valve and its adjacent biography
There are gap between motivation structure, with compensate valve it is heated after swell increment, and valve clearance it is excessive or it is too small can bring harm,
Gap is excessive, then into unsaturated vapor, exhaust is not clean；Gap is too small, then does not cause gas leakage after valve-closing sternly, incited somebody to action under power, and make
The serious carbon distribution of sealing surfaces of valve or burn out in addition valve hit piston.
Furthermore existing crankcase is one-way shaft form, i.e., it is individually trunnion axis crankcase or is individually
Vertical axis crankcase, causes in the course of work, carries out repeating die sinking, increases cost.
Chinese patent literature CN201520118636.6, the applying date 20150227, patent name is：A kind of gasoline engine crank
Babinet, discloses a kind of gasoline engine crankshaft box body, including crankcase and the cylinder block that is linked together with crankcase；The song
Axle box is made of rear wall, side wall and bottom wall, and the rear wall is equipped with Curved shaft support hole, cam hole and balance axis hole；In rear wall
Outer surface described in the periphery in Curved shaft support hole be circumferentially with several the first reinforcing ribs；The cam hole described in the outer surface of rear wall
Periphery be circumferentially with several the second reinforcing ribs；The periphery that axis hole is balanced described in the outer surface of rear wall is circumferentially with several
Third reinforcing rib；The outer surface of the side wall of the crankcase is equipped with several articles of the 4th reinforcing ribs.
The gasoline engine crankshaft box body of above patent document has good thermal diffusivity and higher intensity, is being transported in engine
The oil consumption of engine is reduced during row, keeps the stabilization of output power, while reducing the vibrations of crankcase, is improved
The strength and stability of gasoline engine crankshaft box body.But about a kind of simple in structure, low manufacture cost, improve Oil-gas Separation, it is close
Envelope property is easy to control, and the technical solution without valve gap adjustment is then without corresponding open.
In conclusion there is an urgent need for a kind of simple in structure, low manufacture cost, improve Oil-gas Separation, leakproofness is easy to control, without adjusting
Air throttle gap and the gasoline engine crankshaft box body for repeating die sinking, yet there are no report about this gasoline engine crankshaft box body.
Invention content
The purpose of the present invention is being directed to deficiency in the prior art, a kind of simple in structure, low manufacture cost is provided, oil is improved
Qi leel is from leakproofness is easily controlled, and the gasoline engine crankshaft box body of valve gap adjustment is not necessarily to.
To achieve the above object, the technical solution adopted by the present invention is that：
A kind of gasoline engine crankshaft box body, the crankcase include case ontology, cylinder block, crankshaft hole, hydraulic tappet, oil
Gas separating device, oil filter；The cylinder block is arranged on case ontology；The case ontology by panel body and side surface body group
At；The side surface body is enclosed in the edge of panel body；The crankshaft hole is arranged on panel body；The side surface body inner wall
It is distributed with and subtracts the human body；The side surface body bottom is equipped with expanded hole；The side surface body side is equipped with oil inlet, oil outlet, pipe
Connector, oil drain pan；The oil filter is directly connect with case ontology by pipe fitting；
The gs-oil separator includes leaf valve, support plate, venthole, labyrinth drainback passage, oil return hole；The spring
Plate valve one end is fixed by screws in support plate, and the leaf valve other end is free-end, and is covered in the upper limb of venthole；It is described
Labyrinth drainback passage be made of labyrinth chamber mechanism and spacer mechanism；The labyrinth chamber mechanism includes the first labyrinth chamber, the second fan
Uterine cavity, third labyrinth chamber, the 4th labyrinth chamber；First labyrinth chamber, the second labyrinth chamber, third labyrinth chamber, the 4th labyrinth chamber it
Between be sequentially communicated；First labyrinth chamber, the second labyrinth chamber, third labyrinth chamber, the 4th labyrinth chamber are communicated with oil return hole；It is described
Spacer mechanism include first partition, second partition, upper wall partition board, lower wall partition board, split-flow baffles；The upper wall partition board, under
Wall partition board and first partition are enclosed the first labyrinth chamber；The split-flow baffles, upper wall partition board, lower wall partition board and first
Partition board is enclosed the second labyrinth chamber；Second partition, split-flow baffles, upper wall partition board and the lower wall partition board is enclosed
Three labyrinth chambers；Upper wall partition board, lower wall partition board and the second partition is enclosed the 4th labyrinth chamber.
As a kind of perferred technical scheme, the side installation oil inlet and oil outlet of the pipe fitting；It is described into
The lower edge of hydraulic fluid port is provided with oil outlet.
As a kind of perferred technical scheme, the lower edge of the oil outlet is provided with oil drain pan.
As a kind of perferred technical scheme, the oil drain pan inner surface is arc shape.
As a kind of perferred technical scheme, the side surface body extends outwardly with respect to panel body, and side surface body top is circle
Arcuation is simultaneously tilted to side,
As a kind of perferred technical scheme, the side surface body bottom end is straight shape.
As a kind of perferred technical scheme, the width on the side surface body top is less than the width of side surface body bottom end.
As a kind of perferred technical scheme, the pipe fitting is that inner connecting tube and extension tube attached combine the structure shape to be formed
Formula, and annular chamber is formed between inner connecting tube and extension tube attached.
As a kind of perferred technical scheme, the support plate is equipped with sector notch.
As a kind of perferred technical scheme, there are two the expanded hole is total to.
The invention has the advantages that：
1, a kind of gasoline engine crankshaft box body of the invention, simple in structure, low manufacture cost improve Oil-gas Separation, leakproofness
It is easy to control, it without valve gap adjustment and repeats to mold, Used Number of Parts And Components is reduced, and reduces product weight, product is made to enhance
The use demand of function simultaneously, improves competitiveness.
2, it is equipped with crankcase, crankcase includes side surface body and panel body, and side surface body is enclosed in panel body surrounding, and
Side surface body extends outwardly with respect to panel body, and side surface body top is arc-shaped and is tilted to side that side surface body bottom end is straight shape, side
The width on face body top is less than the width of side surface body bottom end；The design method can accommodate and support all parts in it, protect
The correct position between them is demonstrate,proved, makes each part that can operate and work in phase each other.
3, the side surface body bottom surface of crankcase is straight shape so that entire babinet is horizontal positioned, it is also possible to by panel
Body is disposed vertically as placed side, realization, so that crankcase can work as trunnion axis crankcase or vertical axis bent axle
Two kinds of purposes of babinet use, and are molded without repeating.
4, side surface body, which is internally provided with, subtracts the human body, subtracts wall in the body of human body opposite flank and outwardly protrudes, which can drop
Low weight.Meanwhile side surface body bottom is equipped with expanded hole, expanded hole design, Used Number of Parts And Components is reduced, and can reduce weight.
5, side surface body is equipped with pipe fitting, and pipe fitting is inner connecting tube and extension tube attached combines the structure type to be formed, and inscribed
Annular chamber is formed between pipe and extension tube attached.The design method, from inside to outside, multilayer form is fixedly connected with oil filter, makes
Be connected and fixed definite effect between oil filter.
6, crankcase is equipped with hydraulic tappet, enables to valve clearance to keep certain gap, need not adjust gas
Door gap, the machine is using the trouble that can exempt adjustment valve clearance.
7, gs-oil separator includes leaf valve, support plate, venthole, labyrinth drainback passage, oil return hole, wherein leaf valve one
End is fixed, and the other end is free-end, and is covered on venthole, which has the function of check valve on the supporting plate,
In the operating condition, leaf valve is automatically closed or opens to realize according to the draught head of both sides, can avoid so in gas
Impurity enters in crankcase.
8, support plate is equipped with sector notch, and main function is the contact area for reducing leaf valve and support plate, reduces beam
Binding force so that the high sensitivity that leaf valve is opened or is closed under gas pressure, triggering property is good, once in venthole both sides shape
At pressure difference, the opening or closure of leaf valve can be controlled.
9, it is equipped with labyrinth chamber mechanism and spacer mechanism in gs-oil separator, can realize level Four Oil-gas Separation, it is fully full
The effective contact area and hit number that foot mixed gas Oil-gas Separation needs, improve oil-gas separation efficiency and degree, balance
Gas pressure in crankcase, it is ensured that crankcase seals are easily controlled.
10, oil filter is directly anchored on pipe fitting, and adjustment oil filter structure design is laid out oil circuit again,
The mounting base between babinet and oil filter is eliminated, exploitation mould cost is made to reduce, it is compact-sized, reduce process and cost.
Description of the drawings
Attached drawing 1 is the gasoline engine crankshaft box body structural schematic diagram of the present invention.
Attached drawing 2 is the main view direction schematic diagram of Fig. 1.
Attached drawing 3 is the right apparent direction schematic diagram of Fig. 2.
Attached drawing 4 is the structural schematic diagram of gs-oil separator.
Attached drawing 5 is the floor map of gs-oil separator.
Attached drawing 6 is case ontology and the connection status schematic diagram of oil filter.
Attached drawing 7 is prior art raising middle flask ontology and the connection status schematic diagram of oil filter.
Specific implementation mode
It elaborates below in conjunction with the accompanying drawings to specific implementation mode provided by the invention.
Reference numeral and component part involved in attached drawing is as follows：
1. 11. panel body of case ontology
12. side surface body 121. subtracts the human body
122. 2. cylinder block of expanded hole
3. 4. pipe fitting of crankshaft hole
41. 42. extension tube attached of inner connecting tube
5. 6. oil outlet of oil inlet
7. 8. gs-oil separator of oil drain pan
81. 82. support plate of leaf valve
821. notch, 83. venthole
84. 841. labyrinth chamber mechanism of labyrinth drainback passage
8411. first labyrinth chamber, 8412. second labyrinth chamber
The 4th labyrinth chamber of 8413. third labyrinth chamber 8414.
842. spacer mechanism, 8421. first partition
8422. second partition, 8423. upper wall partition board
8424. lower wall partition board, 8425. split-flow baffles
9. 10. oil filter of oil return hole
11. mounting base 12.O shape sealing rings
Referring to Fig.1 and 2, Fig. 1 is the gasoline engine crankshaft box body structural schematic diagram of the present invention.Fig. 2 is the main view side of Fig. 1
To schematic diagram.A kind of gasoline engine crankshaft box body, the crankcase include case ontology 1, cylinder block 2, crankshaft hole 3, pipe fitting
4, oil inlet 5, oil outlet 6, oil drain pan 7；The cylinder block 2 is arranged on case ontology 1, the cylinder block 2 altogether there are two,
V-shaped distribution between two cylinder block 2；The case ontology 1 is made of panel body 11 and side surface body 12；The side surface body 12
It is enclosed in the edge of panel body 11；The crankshaft hole 3 is arranged on panel body 11；12 inner wall of side surface body, which is distributed with, to be subtracted
The human body 121；12 bottom of side surface body be equipped with expanded hole 122, the expanded hole 122 altogether there are two；The side surface body 12
Side is equipped with oil inlet 5, oil outlet 6, pipe fitting 4, oil drain pan 7.
It is additionally provided with hydraulic tappet on the crankcase；The hydraulic tappet includes check valve-type hydraulic tappet and ball-valve type
Hydraulic tappet；Preferably ball-valve type hydraulic tappet.
Fig. 3 is please referred to, Fig. 3 is the right apparent direction schematic diagram of Fig. 2.Oil inlet 5 is installed and is gone out in the side of the pipe fitting 4
Hydraulic fluid port 6；The lower edge of the oil inlet 5 is provided with oil outlet 6；The lower edge of the oil outlet 6 is provided with oil drain pan 7；It is described to connect
7 inner surface of food tray is arc shape.
Fig. 4 and Fig. 5 are please referred to, Fig. 4 is the structural schematic diagram of gs-oil separator 8.Fig. 5 is that the plane of gs-oil separator 8 is shown
It is intended to.The gs-oil separator 8 includes leaf valve 81, support plate 82, venthole 83, labyrinth drainback passage 84, oil return hole 9；
Described 81 one end of leaf valve is fixed by screws in support plate 82, and 81 other end of leaf valve is free-end, and is covered in logical
The upper limb of stomata 83；The support plate 82 is equipped with sector notch 821；The labyrinth drainback passage 84 is by labyrinth chamber mechanism
841 and spacer mechanism 842 form；The labyrinth chamber mechanism 841 includes the first labyrinth chamber 8411, the second labyrinth chamber 8412, third
Labyrinth chamber 8413, the 4th labyrinth chamber 8414；First labyrinth chamber 8411, the second labyrinth chamber 8412, third labyrinth chamber 8413,
It is sequentially communicated between four labyrinth chambers 8414；First labyrinth chamber 8411, the second labyrinth chamber 8412, third labyrinth chamber 8413,
Four labyrinth chambers 8414 are communicated with oil return hole 9；The spacer mechanism 842 include first partition 8421, second partition 8422, on
Wall partition board 8423, lower wall partition board 8424, split-flow baffles 8425；The upper wall partition board 8423, lower wall partition board 8424 and first
Partition board 8421 is enclosed the first labyrinth chamber 8411；The split-flow baffles 8425, upper wall partition board 8423, lower wall partition board 8424 with
And first partition 8421 is enclosed the second labyrinth chamber 8412；The second partition 8422, split-flow baffles 8425, upper wall partition board
8423 and lower wall partition board 8424 be enclosed third labyrinth chamber 8413；The upper wall partition board 8423, lower wall partition board 8424 with
And second partition 8422 is enclosed the 4th labyrinth chamber 8414.
Fig. 6 is please referred to, Fig. 6 is the connection status schematic diagram of case ontology 1 and oil filter 10.The crankcase is also
Including oil filter 10, the oil filter 10 is directly connect with case ontology 1 by pipe fitting 4.
The embodiment it should be noted that：
The case ontology 1 includes panel body 11 and side surface body 12, and panel body 11 is equipped with crankshaft hole 3, is filled in crankshaft hole 3
With bent axle；The side surface body 12 is enclosed in 11 surrounding of panel body, and side surface body 12 extends outwardly with respect to panel body 11, side
12 top of body is arc-shaped and is tilted to side that 12 bottom end of side surface body is straight shape, and the width on 12 top of side surface body is less than side
The width of 12 bottom end of body；The design method can accommodate and support all parts in it, ensure the correct position between them
It sets, makes each part that can operate and work in phase each other.
12 bottom surface of side surface body of the crankcase is straight shape so that entire babinet is horizontal positioned, it is also possible to will
Panel body 11 is disposed vertically as placed side, realization, so that crankcase can work as trunnion axis crankcase or vertical
Two kinds of purposes of axis crankcase use, and are molded without repeating.
Side surface body 12, which is internally provided with, subtracts the human body 121, subtracts 121 opposite flank body of the human body, 12 inner wall and outwardly protrudes, the design side
Formula can reduce weight.Meanwhile 12 bottom of side surface body is equipped with expanded hole 122, expanded hole 122 designs, and Used Number of Parts And Components is reduced,
Weight can be reduced.
The side surface body 12 is equipped with pipe fitting 4, and pipe fitting 4 is inner connecting tube 41 and the structure that the combination of extension tube attached 42 is formed
Form, and form annular chamber between inner connecting tube 41 and extension tube attached 42.The design method, from inside to outside, multilayer form is to oil strainer
Clear device 10 is fixedly connected so that is connected and fixed definite effect between oil filter 10.
The crankcase is equipped with hydraulic tappet, enables to valve clearance to keep certain gap, need not adjust
Whole valve clearance, the machine is using the trouble that can exempt adjustment valve clearance.The operation principle that hydraulic pressure is held out is as follows：Hydraulic tappet
Work relies primarily on engine oil pressure, tappet body and bore gap, ball check valve in valve stem and tappet gap and tappet.Hydraulic pressure is endured
When column is just started to work, since intracavitary is without oil pressure, therefore tappet plunger is in bottommost, and tappet is larger with valve clearance, valve production
Raw abnormal sound in short-term.With the operating of engine, under the action of engine oil pressure, tappet inner plunger intracavitary fills fluid, under plunger
Row, the effective active length of tappet increase, and valve clearance reduces.Since power caused by tappet inner plunger is smaller, pressure cannot be generated
The strength of contracting valve spring, so when tappet and valve clearance reach very little, tappet no longer moves.Simultaneously again because stopping in tappet
It returns serve the effect of valve, the oil pressure in tappet plunger cavity cannot be discharged rapidly so that plunger is held in place motionless and remains original
Length forms rigidity, to push valve to open.With the operating of engine, valve clearance keeps certain interval, eliminates gas
Door abnormal sound.
The gs-oil separator 8 includes leaf valve 81, support plate 82, venthole 83, labyrinth drainback passage 84, oil return hole
9, wherein 81 one end of leaf valve is fixed in support plate 82, and the other end is free-end, and is covered on venthole 83, the design side
Formula has the function of check valve, and in the operating condition, leaf valve 81 is automatically closed or opens to realize according to the draught head of both sides,
The impurity so in gas can be avoided to enter in crankcase.
The support plate 82 is equipped with sector notch 821, and main function is the contact for reducing leaf valve 81 and support plate 82
Area reduces binding force so that the high sensitivity that leaf valve 81 is opened or is closed under gas pressure, triggering property is good, logical
83 both sides of stomata pressure difference once being formed, can control the opening or closure of leaf valve 81.
The labyrinth drainback passage 84 includes labyrinth chamber mechanism 841 and spacer mechanism 842, and labyrinth chamber mechanism 841 includes
First labyrinth chamber 8411, the second labyrinth chamber 8412, third labyrinth chamber 8413, the 4th labyrinth chamber 8414；Spacer mechanism 842 includes the
One partition board 8421, second partition 8422, upper wall partition board 8423, lower wall partition board 8424；Mixing in the opening of leaf valve 81, through-hole
Gas sequentially enters the first labyrinth chamber 8411, mixed gas the first partition 8421 of the first cavity, upper wall partition board 8423 and
Lower wall partition board 8424 is hit, and level-one Oil-gas Separation is realized；Then mixed gas enters the second labyrinth chamber 8412, because of second
Labyrinth chamber 8412 is communicated with oil return hole 9, and the machine oil that first-level machine oil flow point separates out has flowed to oil return hole under the effect of gravity
9, meanwhile, mixed gas is in the upper wall partition board 8423 of the second labyrinth chamber 8412, lower wall partition board 8424, first partition 8421 and divides
It is hit on stream partition board 8425, realizes two level Oil-gas Separation, because the second labyrinth chamber 8412 is communicated with oil return hole 9, two
The machine oil that grade machine oil is isolated flows to oil return hole 9 under the effect of gravity；Mixed gas is laggard in completion two level Oil-gas Separation
Enter third labyrinth chamber 8413, mixed gas the upper wall partition board 8423 of the close labyrinth chamber of third, lower wall partition board 8424, separation partition board with
And hit on second partition 8422, three-level Oil-gas Separation is realized, is to communicate because third labyrinth chamber 8413 is with oil return hole 9
, the machine oil that three-level machine oil is isolated has flowed to oil return hole 9 under the effect of gravity；Mixed gas completes three-level oil gas point
Enter the 4th labyrinth chamber 8414 from rear, mixed gas the upper wall partition board 8423 of the 4th labyrinth chamber 8414, lower wall partition board 8424 with
And second partition 8422 is hit, and level Four Oil-gas Separation is realized, and is to communicate because the 4th labyrinth chamber 8414 is with oil return hole 9
, the machine oil that three level Four machine oil are isolated has flowed to oil return hole 9 under the effect of gravity.Therefore, the present invention passes through oil gas point
From device 8, level Four Oil-gas Separation can be realized, fully meet effective contact area and the shock of mixed gas Oil-gas Separation needs
Number improves oil-gas separation efficiency and degree, the gas pressure in balance crankshaft case, it is ensured that crankcase seals are easily controlled.
The oil filter 10 is directly anchored on pipe fitting 4, adjusts 10 structure design of oil filter, again cloth
Office's oil circuit, eliminates the mounting base 11 between babinet and oil filter 10, and exploitation mould cost is made to reduce, compact-sized, reduces
Process and cost.And traditional oil filter 10 (see Fig. 7), it needs that mounting base 11 is arranged on case ontology 1, and in mounting base
O-ring seals 12 are placed on 11, can install oil rectifier 10, of high cost, and structure, technique are more complex.
A kind of gasoline engine crankshaft box body of the present invention, simple in structure, low manufacture cost improve Oil-gas Separation, and leakproofness is easy
Control without valve gap adjustment and repeats to mold, and Used Number of Parts And Components is reduced, and reduces product weight, product is made to enhance
The use demand of function simultaneously, improves competitiveness.Equipped with crankcase, crankcase includes side surface body 12 and panel body 11, side
Face body 12 is enclosed in 11 surrounding of panel body, and side surface body 12 extends outwardly with respect to panel body 11, and 12 top of side surface body is circular arc
Shape is simultaneously tilted to side, and 12 bottom end of side surface body is straight shape, and the width on 12 top of side surface body is less than the width of 12 bottom end of side surface body；
The design method can accommodate and support all parts in it, ensure the correct position between them, make each part each other
Between can operate and work in phase；12 bottom surface of side surface body of crankcase is straight shape so that entire babinet is horizontal positioned, together
When, it can also be by panel body 11 as placed side, realization is disposed vertically, so that crankcase can work as trunnion axis crankcase
Two kinds of purposes of body or vertical axis crankcase use, and are molded without repeating；Side surface body 12, which is internally provided with, subtracts the human body 121, subtracts meat
121 opposite flank body of body, 12 inner wall outwardly protrudes, which can reduce weight.Meanwhile 12 bottom of side surface body is equipped with and expands
Macropore 122, expanded hole 122 design, and Used Number of Parts And Components is reduced, and can reduce weight；Side surface body 12 is equipped with pipe fitting 4, and pipe connects
First 4 combine the structure type formed for inner connecting tube 41 and extension tube attached 42, and form annular chamber between inner connecting tube 41 and extension tube attached 42.
The design method, from inside to outside, multilayer form are fixedly connected with oil filter 10 so that the connection between oil filter 10
Fixed effect is definite；Crankcase is equipped with hydraulic tappet, enables to valve clearance to keep certain gap, need not adjust
Valve clearance, the machine is using the trouble that can exempt adjustment valve clearance；Gs-oil separator 8 includes leaf valve 81, support plate 82, leads to
Stomata 83, labyrinth drainback passage 84, oil return hole 9, wherein 81 one end of leaf valve are fixed in support plate 82, and the other end is free
End, and be covered on venthole 83, which has the function of check valve, and in the operating condition, leaf valve 81 is according to two
The draught head of side is automatically closed or opens to realize, the impurity so in gas can be avoided to enter in crankcase；Support plate 82
It is equipped with sector notch 821, main function is the contact area for reducing leaf valve 81 and support plate 82, reduces binding force so that
The high sensitivity that leaf valve 81 is opened or is closed under gas pressure, triggering property is good, is pressed once being formed in 83 both sides of venthole
Difference can control the opening or closure of leaf valve 81；Labyrinth chamber mechanism 841 and spacer mechanism are equipped in gs-oil separator 8
842, it can realize level Four Oil-gas Separation, fully meet effective contact area of mixed gas Oil-gas Separation needs and hit secondary
Number improves oil-gas separation efficiency and degree, the gas pressure in balance crankshaft case, it is ensured that crankcase seals are easily controlled；Machine oil
Filter 10 is directly anchored on pipe fitting 4, is adjusted 10 structure design of oil filter, is laid out oil circuit again, eliminates babinet
Mounting base 11 between oil filter 10 makes exploitation mould cost reduce, compact-sized, reduces process and cost.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, under the premise of not departing from the method for the present invention, can also make several improvement and supplement, these are improved and supplement also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a kind of gasoline engine crankshaft box body, which is characterized in that the crankcase includes case ontology, cylinder block, crankshaft hole, liquid
Press tappet, gs-oil separator, oil filter；The cylinder block is arranged on case ontology；The case ontology by panel body
It is formed with side surface body；The side surface body is enclosed in the edge of panel body；The crankshaft hole is arranged on panel body；Described
Side surface body inner wall, which is distributed with, subtracts the human body；The side surface body bottom is equipped with expanded hole；The side surface body side be equipped with oil inlet,
Oil outlet, pipe fitting, oil drain pan；The oil filter is directly connect with case ontology by pipe fitting；
The gs-oil separator includes leaf valve, support plate, venthole, labyrinth drainback passage, oil return hole；The leaf valve
One end is fixed by screws in support plate, and the leaf valve other end is free-end, and is covered in the upper limb of venthole；The fan
Palace drainback passage is made of labyrinth chamber mechanism and spacer mechanism；The labyrinth chamber mechanism include the first labyrinth chamber, the second labyrinth chamber,
Third labyrinth chamber, the 4th labyrinth chamber；Between first labyrinth chamber, the second labyrinth chamber, third labyrinth chamber, the 4th labyrinth chamber successively
It communicates；First labyrinth chamber, the second labyrinth chamber, third labyrinth chamber, the 4th labyrinth chamber are communicated with oil return hole；The partition board
Mechanism includes first partition, second partition, upper wall partition board, lower wall partition board, split-flow baffles；The upper wall partition board, lower wall partition board
And first partition is enclosed the first labyrinth chamber；Split-flow baffles, upper wall partition board, lower wall partition board and the first partition is enclosed
It closes and forms the second labyrinth chamber；Second partition, split-flow baffles, upper wall partition board and the lower wall partition board is enclosed third labyrinth
Chamber；Upper wall partition board, lower wall partition board and the second partition is enclosed the 4th labyrinth chamber.
2. gasoline engine crankshaft box body according to claim 1, which is characterized in that install oil inlet in the side of the pipe fitting
Mouth and oil outlet；The lower edge of the oil inlet is provided with oil outlet.
3. gasoline engine crankshaft box body according to claim 1, which is characterized in that the lower edge of the oil outlet, which is provided with, connects oil
Disk.
4. gasoline engine crankshaft box body according to claim 4, which is characterized in that the oil drain pan inner surface is arc shape.
5. gasoline engine crankshaft box body according to claim 1, which is characterized in that the side surface body is outside with respect to panel body
Extend, side surface body top is arc-shaped and is tilted to side.
6. gasoline engine crankshaft box body according to claim 5, which is characterized in that the side surface body bottom end is straight shape.
7. gasoline engine crankshaft box body according to claim 6, which is characterized in that the width on the side surface body top is less than
The width of side surface body bottom end.
8. gasoline engine crankshaft box body according to claim 2, which is characterized in that the pipe fitting is inner connecting tube and external
Pipe combines the structure type to be formed, and annular chamber is formed between inner connecting tube and extension tube attached.
9. gasoline engine crankshaft box body according to claim 1, which is characterized in that the support plate is equipped with sector notch.
10. according to claim 1-9 any one of them type gasoline engine crankshaft box bodies, which is characterized in that the expanded hole is shared
Two.
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| CN201810329399.6A CN108547708A (en) | 2018-04-13 | 2018-04-13 | A kind of gasoline engine crankshaft box body |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810329399.6A CN108547708A (en) | 2018-04-13 | 2018-04-13 | A kind of gasoline engine crankshaft box body |
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| CN201810329399.6A Pending CN108547708A (en) | 2018-04-13 | 2018-04-13 | A kind of gasoline engine crankshaft box body |
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