CN205503221U - Four -stroke engine one -way air -oil lubrication system of ration and device that has this system - Google Patents
Four -stroke engine one -way air -oil lubrication system of ration and device that has this system Download PDFInfo
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- CN205503221U CN205503221U CN201620215692.6U CN201620215692U CN205503221U CN 205503221 U CN205503221 U CN 205503221U CN 201620215692 U CN201620215692 U CN 201620215692U CN 205503221 U CN205503221 U CN 205503221U
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- quantitative
- oil gas
- stroke engine
- lubricating system
- oilhole
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a four -stroke engine one -way air -oil lubrication system of ration and device that has this system is equipped with on the crankcase tank wall and gets the oilhole with the preceding stage ration of lubricating -oil tank intercommunication, is equipped with final stage ration air vent on the cylinder head, is the preceding stage ration got oilhole diameter D1 and is satisfied D1D3=0.8 with final stage ration air vent diameter D3 1.5, the preceding stage ration is got and is equipped with an unilaterally connected air -oil lubrication passageway between oilhole and the final stage ration air vent, and the crankcase is got the inspiratory lubricated oil gas of oilhole from the preceding stage ration and is followed the engine component that air -oil lubrication channel flow lubricates the process in proper order, thoroughly burns exhaust trace waste oil gas introduction cylinder in the final stage ration air vent at last. The utility model discloses can accurate control lubricating oil supply volume, there is not unnecessary lubricated oil gas to discharge from final stage ration air vent basically yet, realized ration and the unidirectional lubrication of advancing.
Description
Technical field
This utility model relates to engine lubrication system.
Background technology
At present, the patent of the most relevant four-stroke engine lubricating system is existing multinomial, in addition to the component structural that those four-stroke engine principles must have, we show seen data, patent main contents are the intention of lubricating system, it is meant to ensure that upset uses Center Vent tube not oil spout and sufficient lubrication, devise such as check valve, rotary valve for it, stir spindle, oil supply gallery, drainback passage, fuel feed pump, oil return pipe etc., continue to use the mentality of designing of " circulating oil system " without exception.
To Duo Kuan state, inside and outside type test in find, even if as above complicated design, in operation, machine arbitrarily overturns, and at certain station, lubricating oil can spray from breather, and this is the defect of maximum；Second point, the breather of institute's organic type all accesses air filter, even if normal station, runs a period of time, the lubricating oil that air filter filter cotton is discharged the most entirely soaks and even flows out housing, illustrates that the design theory of " circulating oil system " and mechanical mechanism still have the imperfection of relatively broad aspect.
The lubricating system of four-stroke engine, how to meet the normal use of arbitrarily upset, reduce rate of lubricating oil consumption, get rid of breather access air filter and soak the flaw of filter cotton, a kind of dependable performance is found for this, simple in construction, reduces the technical scheme of cost, and being still this area needs to inquire into the significant problem solved.
Utility model content
Technical problem to be solved in the utility model just there is provided a kind of quantitative unidirectional oil gas lubricating system of four-stroke engine, reduces rate of lubricating oil consumption, gets rid of breather access air filter and soaks the flaw of filter cotton.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that a kind of quantitative unidirectional oil gas lubricating system of four-stroke engine, crankcase tank wall is provided with the prime quantitative oilhole connected with grease-box, cylinder cover is provided with the quantitative passage of final stage, prime quantitative oilhole diameter D1Passage diameter D quantitative with final stage3Meet D1/D3=0.8-1.5, is provided with a unilaterally connected oil-air lubrication passage between described prime quantitative oilhole and the quantitative passage of final stage.
Preferably, described prime quantitative oilhole diameter D1Passage diameter D quantitative with final stage3Meet D1/D3=1-1.2.
Preferably, described prime quantitative oilhole diameter D1And the relation between grease-box volume and engine displacement is D1=K (grease-box volume-engine displacement), wherein D1Unit be mm, the unit of grease-box volume and engine displacement is cm3, the span of described K is 0.011-0.02.
Preferably, the spacing≤2mm between corresponding with crank revolution space each of each of the inwall of described crankcase.
Preferably, the both sides inwall that described crankcase both sides axial with bent axle are corresponding is provided with the lobe being convex to the axial centre position of bent axle.
Preferably, the quantitative oil-through hole of intergrade, described intergrade quantitative oil-through hole diameter D it are provided with between described crankcase and cam chamber2≤3D1。
Preferably, described grease-box is perpendicular to the cross section of bent axle and takes the shape of the letter U, described crankcase is surrounded by grease-box, a prime quantitative oilhole it is each provided with on the left and right sides tank wall of crankcase, under engine water placing flat state, two prime quantitative oilholes are positioned at before and after grease-box volumetric center face before and after the centrage left and right sides tank wall with crankcase to the joining position of centrage.
Preferably, under engine water placing flat state, described prime quantitative oilhole is positioned on the intersecting lens of grease-box volumetric center face and crankcase tank wall.
Preferably, the external box wall of described crankcase in the both sides of prime quantitative oilhole or is circumferentially provided with leakproof oil gluten bar.
Preferably, the quantitative passage of described final stage is by connecting with cylinder communicating pipe.
It addition, this utility model also each provides
A kind of gasoline saw, it is provided with the quantitative unidirectional oil gas lubricating system of above-mentioned four-stroke engine.
A kind of shrub and hedge trimmer, it is provided with the quantitative unidirectional oil gas lubricating system of above-mentioned four-stroke engine.
A kind of grass-mowing machine, it is provided with the quantitative unidirectional oil gas lubricating system of above-mentioned four-stroke engine.
A kind of brush cutter, it is provided with the quantitative unidirectional oil gas lubricating system of above-mentioned four-stroke engine.
A kind of electric blower, it is provided with the quantitative unidirectional oil gas lubricating system of the above-mentioned four-stroke engine stated.
A kind of lawn machine, is provided with the quantitative unidirectional oil gas lubricating system of above-mentioned four-stroke engine.
A kind of electromotor, it is provided with the quantitative unidirectional oil gas lubricating system of above-mentioned four-stroke engine.
A kind of water pump, it is provided with the quantitative unidirectional oil gas lubricating system of above-mentioned four-stroke engine.
A kind of jetting machine, it is provided with the quantitative unidirectional oil gas lubricating system of above-mentioned four-stroke engine.
A kind of small-sized universal engine, it is provided with the quantitative unidirectional oil gas lubricating system of above-mentioned four-stroke engine.
The technical solution adopted in the utility model, by controlling prime quantitative oilhole diameter D1Passage diameter D quantitative with final stage3, make the outlet pressures of the quantitative passage of final stage be consistently less than crankcase pressure and this negative pressure can be made to keep within the specific limits, due to prime quantitative oilhole diameter D1For controlling air pulse pressure and elaioleucite generation amount, final stage quantitative passage diameter D3The design of size ensure that the discharge that the lubricating oil in machine is the fewest as far as possible, therefore by prime quantitative oilhole diameter D1Passage diameter D quantitative with final stage3Collaborative Control, lubricating oil quantity delivered can be precisely controlled, also there is no that unnecessary lubrication oil gas is discharged from the quantitative passage of final stage, it is achieved that quantitative and unidirectional traveling lubrication.
And, prime quantitative oilhole is unilaterally connected structure with the lubricating oil path of travel of the quantitative passage of final stage, between the chamber that every one-level need to lubricate, only unique oil gas metering-orifice communicates, therefore on the premise of meeting each parts lubrication, do not have the unnecessary lubricating oil participating in lubrication and return again to grease-box from crankcase or other chamber, whole lubricating system is without oil return duct and check valve, oil catcher etc., also the machinery of mist of oil is produced without any stirring lubricating oil, patent or other emerged disclosed technology and dependency structure that similar type has been announced it is different from from principle.
And, quantitative oil gas lubricates next group parts successively, finally, only surplus trace exhaust gases is introduced directly into cylinder and it is thoroughly burnt, and reduces rate of lubricating oil consumption, reduce blowdown, thoroughly overcome conventional art and residual air breather access air filter can be soaked filter cotton, cause the flaw of machine and environmental pollution, meet dependable performance, simple in construction, reduces the requirement of cost.
It addition, by the design of crankcase, make the spacing≤2mm between corresponding with crank revolution space each of each of the inwall of crankcase, therefore, even if arbitrarily overturning use, lubricating oil there will not be unnecessary lubricating oil and accumulates in crankcase, meets the normal requirement used of arbitrarily upset.
Accompanying drawing explanation
With detailed description of the invention, this utility model is further described below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation that electromotor is in level；
Fig. 2 is the structural representation that electromotor is in right side configuration state；
Fig. 3 is the structural representation that electromotor is in left side configuration state；
Fig. 4 is the structural representation that electromotor is in inversion state；
Fig. 5 is the structural representation that electromotor is in rear configuration state；
Fig. 6 is the structural representation that electromotor is in initial status.
Detailed description of the invention
As shown in Figures 1 to 6, existing four-stroke engine is provided with crankcase 1, grease-box 2, cam chamber 4, push rod 5, upper rocker arm room 6, cylinder, and cylinder top is provided with cylinder cover 3.
As shown in Figure 1, under electromotor is in level, in terms of dead ahead, grease-box 2 is perpendicular to the cross section of bent axle and is substantially u-shaped, crankcase 1 is surrounded by grease-box 2, surround the U-shaped cavity of grease-box 2 between crankcase tank wall 11 and grease-box tank wall, the bottom of crankcase 1 and grease-box 2 under convex circular arc, limit, the left and right sides is the circular arc of evagination.
Four-stroke engine pulse oil gas lubricating system of the present utility model, the left and right sides tank wall of crankcase 1 is each provided with a prime quantitative oilhole, the first prime quantitative oilhole 111 being i.e. positioned on the left of crankcase 1 on tank wall and the second prime quantitative oilhole 112 being positioned on the right side of crankcase 1 on tank wall wall.Under engine water placing flat state, the two prime quantitative oilhole is positioned at before and after grease-box volumetric center face before and after the left and right sides tank wall of centrage and crankcase 1 near the joining position of centrage, allow suitably skew, such as within this joining 20mm.And when engine water placing flat, within two prime quantitative oilholes are positioned at lubricating oil ullage 50mm height.Even if the shape of grease-box 2 is varied from, for the position of prime quantitative oilhole, preferably design is, under engine water placing flat state, prime quantitative oilhole is positioned on the intersecting lens of grease-box volumetric center face and crankcase tank wall, specifically in which position of intersecting lens, further selection can be made according to grease-box change of shape.
It is connected by prime quantitative oilhole between grease-box 2 with crankcase 1, by push rod hole link between cam chamber 4 and upper rocker arm room 6, cylinder cover 3 offers the quantitative passage of final stage 31, the quantitative passage of final stage 31 connects with upper rocker arm room 6, so, a unilaterally connected oil-air lubrication passage is defined between prime quantitative oilhole and the quantitative passage of final stage 31.
Four-stroke engine pulse oil gas lubricating system of the present utility model, utilizes the air pulse that piston up-down produces, the lubricating oil blowing, inhaling in grease-box 2, by controlling prime quantitative oilhole diameter D1Passage diameter D quantitative with final stage3, make prime quantitative oilhole diameter D1Passage diameter D quantitative with final stage3Meet D1/D3=0.8-1.5, preferably meets D1/D3=1-1.2.Due to prime quantitative oilhole diameter D1Size can control air pulse to the pressure-vaccum pressure of lubricating oil in grease-box 2, thus control lubricating oil from grease-box 2 to the flow of crankcase 1, final stage quantitative passage diameter D3The design of size, when the discharge that the lubricating oil ensured in machine is the fewest as far as possible, also to be taken into account and not affect the performance of machine power.Accordingly, because only have a unique unilaterally connected oil-air lubrication passage between prime quantitative oilhole and the quantitative passage of final stage, by prime quantitative oilhole diameter D1Passage diameter D quantitative with final stage3Collaborative Control, the outlet pressures that can accurately control the quantitative passage of final stage 31 is 0.01 negative-0.03Mpa, thus it is precisely controlled lubrication oil gas quantity delivered, both ensure that the sufficient lubrication of each parts at oil-air lubrication passage process, the most substantially can ensure that not having unnecessary lubrication oil gas discharges from the quantitative passage of final stage 31, and lubricate oil gas from crankcase tank wall prime quantitative oilhole in the traveling greasing of the quantitative passage of final stage on cylinder cover 31, between every one-level lubricating component, only unique oil gas metering-orifice communicates, define unilaterally connected oil-air lubrication passage, do not have the unnecessary lubricating oil participating in lubrication and return again to grease-box 2 from crankcase 1 or other chamber, achieve unidirectional measured lubrication.
Further, as it is shown in figure 5, be provided with the quantitative oil-through hole of intergrade 41 between crankcase 1 and cam chamber 4, intergrade quantitative oil-through hole diameter D2≤3D1.The quantitative oil-through hole of intergrade 41 introduces the theory of grading control, at prime quantitative oilhole diameter D1Passage diameter D quantitative with final stage3In the case of determining, by controlling intergrade quantitative oil-through hole diameter D2Size controls prime quantitative oilhole and lubricates the gait of march of oil gas and lubricate the conveying capacity of oil gas between the quantitative passage of final stage, it is achieved classification is precisely controlled.
The design of above-mentioned two prime quantitative oilhole, is in order to when meeting arbitrarily upset, prime quantitative oilhole all can act on, to meet the normal use of the quantitative unidirectional oil gas lubricating system of this four-stroke engine.As it is shown in figure 1, when electromotor is in level, the first prime quantitative oilhole 111 and the second prime quantitative oilhole 112 are the most in action.As in figure 2 it is shown, when electromotor is in right side configuration state, mainly worked by the second prime quantitative oilhole 112.As it is shown on figure 3, when electromotor is in left side configuration state, mainly worked by the first prime quantitative oilhole 111.As shown in Figures 4 to 6, when time when electromotor is in inversion state, configuration state after electromotor is in and being in initial status at electromotor, the first prime quantitative oilhole 111 and the second prime quantitative oilhole 112 are the most in action.
As it is shown in figure 1, the left and right sides external box wall of crankcase 1 is respectively arranged with leakproof oil gluten bar 113 in the both sides up and down of prime quantitative oilhole.Prime quantitative oilhole is clipped in the middle by upper and lower sides two leakproof oil gluten bar 113, barrier due to leakproof oil gluten bar 113, machine is when certain angle overturns, and that lubricating oil of the tank wall being close to prime dosing hole place also would not flow into crankcase 1 by prime dosing hole.Another selection is, can be provided with leakproof oil gluten bar, so gear oil effect in the circumference of prime quantitative oilhole more preferable.
Owing to grease-box volume can be varied from engine displacement, therefore, prime quantitative oilhole diameter D1And the relation between grease-box volume and four-stroke engine discharge capacity is D1=K (grease-box volume-engine displacement), wherein D1Unit be mm, the unit of grease-box volume and engine displacement is cm3, the span of described K is that the determination of 0.011-0.02, K value size is relevant to discharge capacity, and the generally big value of discharge capacity is big, and the little value of discharge capacity is little.
Finally, by quantitative for final stage passage 31 by connecting with cylinder communicating pipe 32, discharge accordingly even when have partial lubrication oil gas from the quantitative passage of final stage 31, it thoroughly can also be burnt by only surplus trace exhaust gases by communicating pipe 32 being introduced directly into cylinder, reduce rate of lubricating oil consumption, reduce blowdown, be finally reached the requirement quantitatively travelling unidirectionally lubrication, do not have the unnecessary lubricating oil participating in lubrication to return again to grease-box 2 from crankcase 1 or other chamber at all.
It addition, in order to ensure to meet the normal use of arbitrarily upset, an also essential condition: the i.e. design of crankcase 1 need to realize each of inwall and crank revolution space corresponding surface spacing≤2mm.As it is shown in figure 5, crankcase 1 is provided with the lobe 12 being convex to crankshaft crank axial end, to realize crankcase inwall and crank revolution space all corresponding surfaces spacing≤2mm comprehensively.So guarantee, arbitrarily during station, all without there being redundant space to retain the lubricating oil come in from grease-box 2 in crankcase 1, enter the lubricating oil of crankcase 1 quantification except the part in lubrication crankcase 1, remaining lubricating oil can only pass through the quantitative oil-through hole of intergrade 41, continues to travel unidirectionally lubrication cam chamber 4.
Above-mentioned four-stroke engine pulse oil gas lubricating system, is by prime quantitative oilhole diameter D before controlling1Passage diameter D quantitative with final stage3Meet D1/D3=0.8-1.5, makes prime quantitative oilhole diameter D simultaneously1And the relation between grease-box volume and engine displacement is D1=K (grease-box volume-engine displacement), it is precisely controlled lubrication oil gas quantity delivered and the lubrication oil gas gait of march at oil-air lubrication passage, formed and quantitatively travel unidirectionally lubrication, oil-air lubrication passage is sequentially communicated crankcase 1, cam chamber 4, push rod duct, upper rocker arm room 6 by prime quantitative oilhole to final stage quantitative passage direction, finally the trace exhaust gases discharged in quantitative for final stage passage 31 is introduced cylinder and thoroughly burns.
In the case of electromotor one fixed displacement and crankcase volume are certain, piston is basicly stable with the pressure x velocity of the air pulse that the frequency up-downgoing of 0.01 0.002 seconds is formed, by changing prime quantitative oilhole aperture, just determine air pulse to the pressure-vaccum pressure of lubricating oil in grease-box, thus control lubrication oil gas from grease-box 2 to the flow of crankcase 1, under these conditions lubrication oil gas from grease-box 2 to the flow-control of crankcase 1 at 1.5 2g/kw.h.
Crankcase 1 lubrication after, then lubrication cam chamber 4, between crankcase 1 and cam chamber 4 between intergrade quantitative oil-through hole 41 size design meet；Intergrade quantitative oil-through hole diameter D2≤3D1Ensure that operating crankcase 1 pressure is 0.003 negative 0.008Mpa, controlling the lubricants capacity entering cam chamber 4 simultaneously and meeting outside cam and timing gears lubrication, the parts lubrication that remaining oil mass can meet next lubricant housings, i.e. upper rocker arm room 6 substantially is normal for spending.
After the lubrication of upper rocker arm room 6, only surplus trace exhaust gases introduces cylinder by the quantitative passage of final stage 31 at cylinder cover 3 top, the design of final stage quantitative passage 31 size is when the discharge that the lubricating oil ensured in machine is the fewest as far as possible, also to take into account and not affect the performance of machine power, by controlling final stage quantitative passage diameter, making the quantitative passage of final stage is that 3 5mm/s are preferred to the elaioleucite gait of march between cylinder.
The quantitative unidirectional oil gas lubricating system of four-stroke engine that this utility model provides can be used in the various instrument being provided with four-stroke engine; such as gasoline saw, shrub and hedge trimmer, grass-mowing machine, brush cutter, electric blower, lawn machine, electromotor;, water pump, jetting machine, small-sized universal engine etc., certain protection domain of the present utility model is not limited to above-mentioned enumerating.
Claims (20)
1. the quantitative unidirectional oil gas lubricating system of four-stroke engine, it is characterised in that: on crankcase tank wall, it is provided with the prime quantitative oilhole connected with grease-box, cylinder cover is provided with the quantitative passage of final stage, prime quantitative oilhole diameter D1Passage diameter D quantitative with final stage3Meet D1/D3=0.8-1.5, is provided with a unilaterally connected oil-air lubrication passage between described prime quantitative oilhole and the quantitative passage of final stage.
A kind of quantitative unidirectional oil gas lubricating system of four-stroke engine the most according to claim 1, it is characterised in that: described prime quantitative oilhole diameter D1Passage diameter D quantitative with final stage3Meet D1/D3=1-1.2.
A kind of quantitative unidirectional oil gas lubricating system of four-stroke engine the most according to claim 1, it is characterised in that: described prime quantitative oilhole diameter D1And the relation between grease-box volume and engine displacement is D1=K, wherein, K=grease-box volume-engine displacement, D1Unit be mm, the unit of grease-box volume and engine displacement is cm3, the span of described K is 0.011-0.02.
A kind of quantitative unidirectional oil gas lubricating system of four-stroke engine the most according to claim 3, it is characterised in that: the spacing≤2mm between corresponding with crank revolution space each of each of the inwall of described crankcase.
A kind of quantitative unidirectional oil gas lubricating system of four-stroke engine the most according to claim 4, it is characterised in that: both sides inwall corresponding to described crankcase both sides axial with bent axle is provided with the lobe being convex to the axial centre position of bent axle.
6. according to the quantitative unidirectional oil gas lubricating system of a kind of four-stroke engine described in claim 1 to 5 any one, it is characterised in that: it is provided with the quantitative oil-through hole of intergrade, described intergrade quantitative oil-through hole diameter D between described crankcase and cam chamber2≤3D1。
A kind of quantitative unidirectional oil gas lubricating system of four-stroke engine the most according to claim 6, it is characterized in that: described grease-box is perpendicular to the cross section of bent axle and takes the shape of the letter U, described crankcase is surrounded by grease-box, a prime quantitative oilhole it is each provided with on the left and right sides tank wall of crankcase, under engine water placing flat state, two prime quantitative oilholes are positioned at before and after grease-box volumetric center face before and after the centrage left and right sides tank wall with crankcase to the joining position of centrage.
A kind of quantitative unidirectional oil gas lubricating system of four-stroke engine the most according to claim 6, it is characterised in that: under engine water placing flat state, described prime quantitative oilhole is positioned on the intersecting lens of grease-box volumetric center face and crankcase tank wall.
A kind of quantitative unidirectional oil gas lubricating system of four-stroke engine the most according to claim 7, it is characterised in that: the external box wall of described crankcase is in the both sides of prime quantitative oilhole or is circumferentially provided with leakproof oil gluten bar.
A kind of quantitative unidirectional oil gas lubricating system of four-stroke engine the most according to claim 6, it is characterised in that: the quantitative passage of described final stage is by connecting with cylinder communicating pipe.
11. 1 kinds of gasoline saws, it is characterised in that: the quantitative unidirectional oil gas lubricating system of a kind of four-stroke engine described in claim 1 to 10 any one is installed.
12. 1 kinds of shrub and hedge trimmer, it is characterised in that: the quantitative unidirectional oil gas lubricating system of a kind of four-stroke engine described in claim 1 to 10 any one is installed.
13. 1 kinds of grass-mowing machines, it is characterised in that: the quantitative unidirectional oil gas lubricating system of a kind of four-stroke engine described in claim 1 to 10 any one is installed.
14. 1 kinds of brush cutters, it is characterised in that: the quantitative unidirectional oil gas lubricating system of a kind of four-stroke engine described in claim 1 to 10 any one is installed.
15. 1 kinds of electric blowers, it is characterised in that: the quantitative unidirectional oil gas lubricating system of a kind of four-stroke engine described in claim 1 to 10 any one is installed.
16. 1 kinds of lawn machines, it is characterised in that: the quantitative unidirectional oil gas lubricating system of a kind of four-stroke engine described in claim 1 to 10 any one is installed.
17. 1 kinds of electromotors, it is characterised in that: the quantitative unidirectional oil gas lubricating system of a kind of four-stroke engine described in claim 1 to 10 any one is installed.
18. 1 kinds of water pumps, it is characterised in that: the quantitative unidirectional oil gas lubricating system of a kind of four-stroke engine described in claim 1 to 10 any one is installed.
19. 1 kinds of jetting machines, it is characterised in that: the quantitative unidirectional oil gas lubricating system of a kind of four-stroke engine described in claim 1 to 10 any one is installed.
20. 1 kinds of small-sized universal engines, it is characterised in that: the quantitative unidirectional oil gas lubricating system of a kind of four-stroke engine described in claim 1 to 10 any one is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620215692.6U CN205503221U (en) | 2016-03-18 | 2016-03-18 | Four -stroke engine one -way air -oil lubrication system of ration and device that has this system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620215692.6U CN205503221U (en) | 2016-03-18 | 2016-03-18 | Four -stroke engine one -way air -oil lubrication system of ration and device that has this system |
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| Publication Number | Publication Date |
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| CN205503221U true CN205503221U (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620215692.6U Withdrawn - After Issue CN205503221U (en) | 2016-03-18 | 2016-03-18 | Four -stroke engine one -way air -oil lubrication system of ration and device that has this system |
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| CN (1) | CN205503221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673132A (en) * | 2016-03-18 | 2016-06-15 | 浙江亚特电器有限公司 | Quantitative and one-way oil-gas lubrication system and method for four-stroke engine |
-
2016
- 2016-03-18 CN CN201620215692.6U patent/CN205503221U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673132A (en) * | 2016-03-18 | 2016-06-15 | 浙江亚特电器有限公司 | Quantitative and one-way oil-gas lubrication system and method for four-stroke engine |
| US11300020B2 (en) | 2016-03-18 | 2022-04-12 | Zhejiang Yat Electrical Appliance Co., Ltd | Quantitative one-way oil gas lubricant system and method for 4-stroke engine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160824 Effective date of abandoning: 20170707 |
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| AV01 | Patent right actively abandoned |