CN103016094B - Double VVT (Variable Valve Timing) engine lubricating oil passage - Google Patents
Double VVT (Variable Valve Timing) engine lubricating oil passage Download PDFInfo
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- CN103016094B CN103016094B CN201210584085.3A CN201210584085A CN103016094B CN 103016094 B CN103016094 B CN 103016094B CN 201210584085 A CN201210584085 A CN 201210584085A CN 103016094 B CN103016094 B CN 103016094B
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Abstract
The invention provides a double VVT (Variable Valve Timing) engine lubricating oil passage. Oil is supplied to two phasers through two main oil passages; one-way valves are mounted between an oil pressure control valve and the main oil passages; and an oil draining passage is formed in an oil pressure control oil passage towards a chain wheel chamber. Therefore, VVT response becomes faster.
Description
Technical field
The present invention relates to motor car engine field, be specifically related to a kind of two VVT engine oil gallery.
Background technique
Along with the development of automotive industry, the requirement of performance, oil consumption and discharge to motor is more and more higher, Variable Valve Time (VVT, Variable Valve Timing) technology has also obtained general application on motor, the more complicated that also makes the lubricating oil path of motor become simultaneously.So how to make lubricating oil path simpler, structure is compacter, lubrication effect is better, is a difficult problem that needs breakthrough.
Chinese patent 200710195892.5 discloses a kind of single VVT engine oil gallery, and cylinder cap is provided with the main oil gallery being connected with cylinder body, the bolt hole that this main oil gallery is cylinder cap; Cylinder cap is also provided with cylinder cap the first auxiliary oil channel, the vertical oil duct of cylinder cap, and the first camshaft bearing covers and is provided with bearing cap the first auxiliary oil channel, and admission cam shaft auxiliary oil channel is connected with bearing cap the first auxiliary oil channel; Cylinder cap is also provided with cylinder cap the second auxiliary oil channel, the first camshaft bearing and covers and be provided with bearing cap the second auxiliary oil channel, admission cam shaft, exhaust cam shaft and be respectively arranged with camshaft main oil gallery, is also respectively arranged with camshaft and divides oil duct.This VVT engine lubrication oil circuit structure is simply compact, has effectively alleviated engine weight.
But, for two VVT motors, if just simply by said structure stack, can find that the crushing of system increases, in the time that camshaft phase need to regulate, the time of VVT adjustment cam axle phase place is elongated, and speed is slack-off, causes the response variation of VVT, thereby limit the performance of VVT system, therefore and be not suitable for the motor of two VVT reason is will be after single VVT engine oil gallery simple superposition to form after two VVT oil circuits, and oil circuit is long, oil circuit trend has repeatedly vertical break-in etc..
Summary of the invention
The object of the invention is to overcome above problem, a kind of response two VVT engine oil galleries are rapidly provided.
For achieving the above object, the invention provides following technological scheme:
A kind of two VVT engine oil gallery, comprising:
Be arranged on the first main oil gallery and the second main oil gallery, the first oil pressure control oil duct and the second oil pressure control oil duct, the first cylinder cap auxiliary oil channel and the second cylinder cap auxiliary oil channel, middle oil duct, the first draining road and the second draining road on cylinder cap;
Be arranged on clutch shaft bearing lid auxiliary oil channel, the second bearing cap auxiliary oil channel, oil leab that clutch shaft bearing covers;
The the first admission cam shaft auxiliary oil channel, the second admission cam shaft auxiliary oil channel, the second lubricated auxiliary oil channel, admission cam shaft main oil gallery, the admission cam shaft that are arranged on admission cam shaft divide oil duct;
The the first exhaust cam shaft auxiliary oil channel, the second exhaust cam shaft auxiliary oil channel, the first lubricated auxiliary oil channel, exhaust cam shaft main oil gallery, the exhaust cam shaft that are arranged on exhaust cam shaft divide oil duct;
Between described the first main oil gallery and described the first oil pressure control oil duct, one-way valve is all installed between described the second main oil gallery and described the second oil pressure control oil duct;
Exhaust valve timing phase discriminator is through the first main oil gallery, the first oil pressure control oil duct, the first cylinder cap auxiliary oil channel, clutch shaft bearing lid auxiliary oil channel, the first exhaust cam shaft auxiliary oil channel, the second exhaust cam shaft auxiliary oil channel fuel feeding, through the second exhaust cam shaft auxiliary oil channel, the first exhaust cam shaft auxiliary oil channel, clutch shaft bearing lid auxiliary oil channel, the first cylinder cap auxiliary oil channel, the first oil pressure control oil duct, the first draining road oil return;
Intake valve timing phase is through the second main oil gallery, the second oil pressure control oil duct, the second cylinder cap auxiliary oil channel, the second bearing cap auxiliary oil channel, the first admission cam shaft auxiliary oil channel, the second admission cam shaft auxiliary oil channel fuel feeding, through the second admission cam shaft auxiliary oil channel, the first admission cam shaft auxiliary oil channel, the second bearing cap auxiliary oil channel, the second cylinder cap auxiliary oil channel, the second oil pressure control oil duct, the second draining road oil return;
Fluid branch after oil leab in middle oil duct, one is divided oil duct to enter the each axle journal of exhaust cam shaft through the first lubricated auxiliary oil channel, exhaust cam shaft main oil gallery, exhaust cam shaft, and another divides oil duct to enter the each axle journal of admission cam shaft through the second lubricated auxiliary oil channel, admission cam shaft main oil gallery, admission cam shaft.
Preferably, the angle between described the first main oil gallery and described the first oil pressure control oil duct, described the second main oil gallery and described the second oil pressure control oil duct is obtuse angle.
Preferably, the angle between described the first oil pressure control oil duct and described the first cylinder cap auxiliary oil channel, described the second oil pressure control oil duct and described the second cylinder cap auxiliary oil channel is obtuse angle.
Preferably, the equal diameters of described the first main oil gallery and described the second main oil gallery, the equal diameters of described the first cylinder cap auxiliary oil channel and described the second cylinder cap auxiliary oil channel.
Preferably, the diameter of the diameter of described the first main oil gallery and described the second main oil gallery is greater than the diameter of described middle oil duct.
In the present invention, adopt two main oil gallerys to be respectively the phase discriminator fuel feeding of admission cam shaft and exhaust cam shaft, oil feeding line is distributed in cylinder cap both sides, and having avoided single main oil gallery is that two phase discriminator fuel feeding produce the danger for shortage of oil.And; between oil pressure control oil duct and main oil gallery, one-way valve is set; on oil pressure control oil duct, draining road is set; make fluid to enter oil pressure control oil duct from main oil gallery one direction; when oil return, flow out from draining road; both the oil pressure that had ensured motor VVT oil circuit after shutdown can not reduce rapidly, and oil circuit is shorter, has ensured VVT stable operation, response rapidly.
Further, angle between the first main oil gallery and the first oil pressure control oil duct, the second main oil gallery and the second oil pressure control oil duct is obtuse angle, angle between the first oil pressure control oil duct and the first cylinder cap auxiliary oil channel, the second oil pressure control oil duct and the second cylinder cap auxiliary oil channel is obtuse angle, in the time of oil circuit break-in, the resistance that fluid runs into than vertical break-in is less, makes VVT response rapider.
Further, the equal diameters of the first main oil gallery, the second main oil gallery, the equal diameters of the first cylinder cap auxiliary oil channel and the second cylinder cap auxiliary oil channel, therefore the speed of response of intake valve timing phase, exhaust valve timing phase discriminator is consistent.
Further, because the required oil mass of VVT phase discriminator is larger than lubricated required oil mass, the diameter than middle oil duct therefore in the present invention, the diameter of the first main oil gallery and the second main oil gallery being arranged is large, has both ensured VVT speed of response, does not affect again lubricating function.
Brief description of the drawings
Next in connection with accompanying drawing, specific embodiments of the invention are described in further detail, wherein:
Fig. 1 is two VVT engine lubrication oil circuit structure figure of embodiments of the invention;
Fig. 2 is that the fluid in two VVT engine oil galleries of embodiments of the invention moves towards figure;
Fig. 3 is two VVT engine oil galleries of embodiments of the invention and the assembling schematic diagram of other critical piece.
Oil duct in the middle of mark in upper figure: 10-, 11-the first main oil gallery, 12-the second main oil gallery, 13-the first oil pressure control oil duct front end, 14-the second oil pressure control oil duct front end, 15-the first oil pressure control oil duct, 16-the second oil pressure control oil duct, 17-the second draining road, 18-the second cylinder cap auxiliary oil channel, 19-the first draining road, 20-the first cylinder cap auxiliary oil channel, 21-the second bearing cap auxiliary oil channel, 22-the first admission cam shaft auxiliary oil channel, 23-clutch shaft bearing lid auxiliary oil channel, 24-the first exhaust cam shaft auxiliary oil channel, 25-the second admission cam shaft auxiliary oil channel, 26-the second exhaust cam shaft auxiliary oil channel, 27-oil leab, the lubricated auxiliary oil channel of 28-second, the lubricated auxiliary oil channel of 29-first, 30-exhaust cam shaft main oil gallery, 31-admission cam shaft main oil gallery, 32-exhaust cam shaft divides oil duct, 33-admission cam shaft divides oil duct, 100-intake valve timing phase, 200-exhaust valve timing phase discriminator, 300-pressure control valve, 400-one-way valve.
Embodiment
Two VVT motors have two phase discriminators: intake valve timing phase 100 and exhaust valve timing phase discriminator 200, engine oil gallery both provided fluid for the work of phase discriminator, again for admission cam shaft, the each axle journal of exhaust cam shaft place provide lubricating oil.For clear, the entity part such as the bearing cap of the cylinder body of cylinder and cylinder cap, admission cam shaft and exhaust cam shaft, camshaft is all not shown in the accompanying drawings, only retains oil duct wherein.
In conjunction with Fig. 1, Fig. 3.On cylinder cap (not shown), be provided with the first main oil gallery 11 and 12, two main oil gallerys of the second main oil gallery are communicated with cylinder body (not shown), respectively from cylinder body oil-feed.The first main oil gallery 11 is communicated with in the first oil pressure control oil duct 15, the first oil pressure control oil ducts 15 pressure control valve 300 is installed.Extend two the first cylinder cap auxiliary oil channels 20 from the first oil pressure control oil duct towards clutch shaft bearing lid direction, extend the first draining road 19 towards engine sprocket chamber (not shown) direction.The second main oil gallery 12 be communicated with in the second oil pressure control oil duct 16, the second oil pressure control oil ducts 16, pressure control valve 300(is installed equally and is also referred to as OCV valve).At the first oil pressure control oil duct front end 13 places and the second oil pressure control oil duct front end 14 places, one-way valve 400 is installed, both one-way valve 400 was between main oil gallery and oil pressure control oil duct.Extend two the second cylinder cap auxiliary oil channels 18 from the second oil pressure control oil duct towards clutch shaft bearing lid direction, extend the second draining road 17 towards engine sprocket chamber (not shown) direction.Between the first main oil gallery 11 and the second main oil gallery 12, for middle oil duct 10, for lubricating oil is provided.
Along the axial direction of admission cam shaft and exhaust cam shaft, be provided with multiple bearing cap (not shown), the most close phase discriminator is clutch shaft bearing lid.Clutch shaft bearing lid place, is provided with two clutch shaft bearing lid auxiliary oil channels 23, two the second bearing cap auxiliary oil channels 21, oil leab 27.Two clutch shaft bearing lid auxiliary oil channels 23 are communicated with two the first cylinder cap auxiliary oil channels 20 of cylinder cap respectively, and two the second bearing cap auxiliary oil channels 21 are communicated with two the second cylinder cap auxiliary oil channels 18 respectively, and oil leab 27 is communicated with the middle oil duct 10 of cylinder cap.
On admission cam shaft, be provided with two the first annular admission cam shaft auxiliary oil channels 22, multiple the second admission cam shaft auxiliary oil channel 25, the second lubricated auxiliary oil channel 28.Two the first admission cam shaft auxiliary oil channels 22 are communicated with two the second bearing cap auxiliary oil channels 21 respectively, multiple the second admission cam shaft auxiliary oil channels 25 are communicated with the oil pocket of the first admission cam shaft auxiliary oil channel 22 and air inlet timing phase 100, for the oil-feed/oil return of air inlet timing phase 100.Admission cam shaft is hollow structure, and its central authorities are axially extended admission cam shaft main oil gallery 31, radially divides oil duct 33 to the multiple admission cam shafts of each cam journal punishment expenditure from admission cam shaft main oil gallery 31.The second lubricated auxiliary oil channel 28 is communicated with oil leab 27 and admission cam shaft main oil gallery 31.
On exhaust cam shaft, be provided with two the first annular exhaust cam shaft auxiliary oil channels 24, multiple the second exhaust cam shaft auxiliary oil channel 26, the first lubricated auxiliary oil channel 29.Two the first exhaust cam shaft auxiliary oil channels 24 are communicated with two clutch shaft bearing lid auxiliary oil channels 23 respectively, multiple the second exhaust cam shaft auxiliary oil channels 26 are communicated with the oil pocket of the first exhaust cam shaft auxiliary oil channel 24 and exhaust timing phase 200, for the oil-feed/oil return of exhaust timing phase 200.Exhaust cam shaft is hollow structure, and its central authorities are axially extended exhaust cam shaft main oil gallery 30, radially divides oil duct 32 to the multiple exhaust cam shafts of each cam journal punishment expenditure from exhaust cam shaft main oil gallery 30.The first lubricated auxiliary oil channel 29 is communicated with oil leab 27 and exhaust cam shaft main oil gallery 30.
With reference to figure 2, move as example towards a direction taking exhaust valve timing phase discriminator 200, intake valve timing phase 100, this chart understands the flow direction of fluid in oil circuit.During for exhaust valve timing phase discriminator 200 fuel feeding, fluid enters the pressure control valve 300 in the first oil pressure control oil duct 15 through the first main oil gallery 11, pressure control valve 300 is controlled the first draining road 19 and is closed, and fluid enters exhaust valve timing phase discriminator 200 through the first cylinder cap auxiliary oil channel 20, clutch shaft bearing lid auxiliary oil channel 23, the first exhaust cam shaft auxiliary oil channel 24, the second exhaust cam shaft auxiliary oil channel 26.When oil return, fluid in exhaust valve timing phase discriminator 200 enters the first oil pressure control oil duct 15 through the second exhaust cam shaft auxiliary oil channel 26, the first exhaust cam shaft auxiliary oil channel 24, clutch shaft bearing lid auxiliary oil channel 23, the first cylinder cap auxiliary oil channel 20, pressure control valve 300 is controlled the first draining road 19 and is opened, fluid leaks into engine sprocket chamber, reenters oil circulation.During for intake valve timing phase 100 fuel feeding, fluid enters the pressure control valve 300 in the second oil pressure control oil duct 16 through the second main oil gallery 12, pressure control valve 300 is controlled the second draining road 17 and is closed, and fluid enters intake valve timing phase 100 through the second cylinder cap auxiliary oil channel 18, the second bearing cap auxiliary oil channel 21, the first admission cam shaft auxiliary oil channel 22, the second admission cam shaft auxiliary oil channel 25.When oil return, fluid in intake valve timing phase 100 enters the second oil pressure control oil duct 16 through the second admission cam shaft auxiliary oil channel 25, the first admission cam shaft auxiliary oil channel 22, the second bearing cap auxiliary oil channel 21, the second cylinder cap auxiliary oil channel 18, pressure control valve 300 is controlled the second draining road 17 and is opened, fluid leaks into engine sprocket chamber, reenters oil circulation.
Lubricating oil path is: the branch after oil leab 27 of the fluid in middle oil duct 10, one is divided oil duct 32 to enter the each axle journal of exhaust cam shaft place through the first lubricated auxiliary oil channel 29, exhaust cam shaft main oil gallery 30, exhaust cam shaft, and another divides oil duct 33 to enter the each axle journal of admission cam shaft place through the second lubricated auxiliary oil channel 28, admission cam shaft main oil gallery 31, admission cam shaft.
As can be seen from Fig. 2, on the flow direction of fluid, the angle a2 between angle a1, the second main oil gallery 12 and the second oil pressure control oil duct 17 between the first main oil gallery 11 and the first oil pressure control oil duct 15 is obtuse angle.Similarly, the angle a3 between the angle (not shown) between the first oil pressure control oil duct 15 and the first cylinder cap auxiliary oil channel 20, the second oil pressure control oil duct 16 and the second cylinder cap auxiliary oil channel 18 is also obtuse angle.Obtuse angle makes fluid more smooth and easy flowing of turning point, thereby has ensured the promptness of VVT response.Simultaneously, in order to make two phase discriminators synchronous, the equal diameters of the first main oil gallery 11 and the second main oil gallery 12, the equal diameters of the first cylinder cap auxiliary oil channel 20 and the second cylinder cap auxiliary oil channel 18, both in the unit time, enter two pressure control valves 300 oil mass, go out two pressure control valves 300 oil mass equate.Meanwhile, the diameter of oil duct 10 in the middle of the diameter of the diameter of the first main oil gallery 11 and the second main oil gallery 12 is greater than, to ensure the abundant fuel feeding of two phase discriminators 100,200.
Although the present invention is described in conjunction with above embodiment, but the present invention is not limited to above-described embodiment, and being only subject to the restriction of claim, those of ordinary skill in the art can easily modify to it and change, but do not leave essence design of the present invention and scope.
Claims (5)
1. two VVT engine oil galleries, comprising:
Be arranged on the first main oil gallery and the second main oil gallery, the first oil pressure control oil duct and the second oil pressure control oil duct, the first cylinder cap auxiliary oil channel and the second cylinder cap auxiliary oil channel, middle oil duct, the first draining road and the second draining road on cylinder cap;
Be arranged on clutch shaft bearing lid auxiliary oil channel, the second bearing cap auxiliary oil channel, oil leab that clutch shaft bearing covers;
The the first admission cam shaft auxiliary oil channel, the second admission cam shaft auxiliary oil channel, the second lubricated auxiliary oil channel, admission cam shaft main oil gallery, the admission cam shaft that are arranged on admission cam shaft divide oil duct;
The the first exhaust cam shaft auxiliary oil channel, the second exhaust cam shaft auxiliary oil channel, the first lubricated auxiliary oil channel, exhaust cam shaft main oil gallery, the exhaust cam shaft that are arranged on exhaust cam shaft divide oil duct;
Between described the first main oil gallery and described the first oil pressure control oil duct, one-way valve is all installed between described the second main oil gallery and described the second oil pressure control oil duct;
Exhaust valve timing phase discriminator is through the first main oil gallery, the first oil pressure control oil duct, the first cylinder cap auxiliary oil channel, clutch shaft bearing lid auxiliary oil channel, the first exhaust cam shaft auxiliary oil channel, the second exhaust cam shaft auxiliary oil channel fuel feeding, through the second exhaust cam shaft auxiliary oil channel, the first exhaust cam shaft auxiliary oil channel, clutch shaft bearing lid auxiliary oil channel, the first cylinder cap auxiliary oil channel, the first oil pressure control oil duct, the first draining road oil return;
Intake valve timing phase is through the second main oil gallery, the second oil pressure control oil duct, the second cylinder cap auxiliary oil channel, the second bearing cap auxiliary oil channel, the first admission cam shaft auxiliary oil channel, the second admission cam shaft auxiliary oil channel fuel feeding, through the second admission cam shaft auxiliary oil channel, the first admission cam shaft auxiliary oil channel, the second bearing cap auxiliary oil channel, the second cylinder cap auxiliary oil channel, the second oil pressure control oil duct, the second draining road oil return;
Fluid branch after oil leab in middle oil duct, one is divided oil duct to enter the each axle journal of exhaust cam shaft through the first lubricated auxiliary oil channel, exhaust cam shaft main oil gallery, exhaust cam shaft, and another divides oil duct to enter the each axle journal of admission cam shaft through the second lubricated auxiliary oil channel, admission cam shaft main oil gallery, admission cam shaft.
2. according to claim 1 pair of VVT engine oil gallery, is characterized in that, the angle between described the first main oil gallery and described the first oil pressure control oil duct, described the second main oil gallery and described the second oil pressure control oil duct is obtuse angle.
3. according to claim 1 pair of VVT engine oil gallery, is characterized in that, the angle between described the first oil pressure control oil duct and described the first cylinder cap auxiliary oil channel, described the second oil pressure control oil duct and described the second cylinder cap auxiliary oil channel is obtuse angle.
4. according to the two VVT engine oil galleries described in any one in claims 1 to 3, it is characterized in that, the equal diameters of described the first main oil gallery and described the second main oil gallery, the equal diameters of described the first cylinder cap auxiliary oil channel and described the second cylinder cap auxiliary oil channel.
5. according to claim 4 pair of VVT engine oil gallery, is characterized in that, the diameter of the diameter of described the first main oil gallery and described the second main oil gallery is greater than the diameter of described middle oil duct.
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Families Citing this family (8)
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| CN103233795B (en) * | 2013-04-28 | 2015-07-01 | 长城汽车股份有限公司 | Lubricating system used for engine and engine and vehicle with same |
| CN104747249A (en) * | 2015-03-31 | 2015-07-01 | 安徽江淮汽车股份有限公司 | Engine cylinder block lubricating oil path system |
| CN105134331B (en) * | 2015-08-20 | 2018-08-14 | 奇瑞汽车股份有限公司 | A kind of list VVT engine oil galleries |
| RU2626044C1 (en) * | 2016-08-23 | 2017-07-21 | Открытое акционерное общество "АВТОВАЗ" | Internal combustion engine |
| RU2708445C1 (en) * | 2019-03-18 | 2019-12-06 | Акционерное общество "АвтоВАЗ" (АО "АвтоВАЗ") | Internal combustion engine |
| CN112302826A (en) * | 2020-11-30 | 2021-02-02 | 安徽江淮汽车集团股份有限公司 | Engine cylinder cover oil way and engine |
| CN112324584B (en) * | 2020-11-30 | 2021-12-07 | 安徽江淮汽车集团股份有限公司 | Engine camshaft shroud and engine |
| CN114215655B (en) * | 2021-12-31 | 2023-01-24 | 东风汽车集团股份有限公司 | Cylinder head blank, cylinder head and thermodynamics single cylinder engine |
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| JP3911609B2 (en) * | 2002-06-29 | 2007-05-09 | 現代自動車株式会社 | Engine cylinder head oil supply structure |
| JP2008101568A (en) * | 2006-10-20 | 2008-05-01 | Toyota Motor Corp | Oil supply structure for engine |
| JP2009121259A (en) * | 2007-11-12 | 2009-06-04 | Mazda Motor Corp | Oil supplying structure for engine |
| CN100510330C (en) * | 2007-12-04 | 2009-07-08 | 奇瑞汽车股份有限公司 | VVT engine oil gallery |
| KR101028539B1 (en) * | 2007-12-14 | 2011-04-11 | 기아자동차주식회사 | Oil gallery for continuously variable valve timing apparatus of a cylinder head |
| KR101000179B1 (en) * | 2008-07-30 | 2010-12-10 | 기아자동차주식회사 | Oil Circuit of Variable Valve Timing Device |
| CN101718215B (en) * | 2009-10-22 | 2011-06-15 | 柳州五菱柳机动力有限公司 | Variable timing system oil-way of minicar engine cylinder body assembly |
| CN101956584B (en) * | 2010-10-15 | 2013-06-12 | 奇瑞汽车股份有限公司 | Driving oil way of variable valve mechanism with VVT and VVL system |
| CN102269028B (en) * | 2011-06-30 | 2013-01-30 | 奇瑞汽车股份有限公司 | Lubrication oil way of engine |
| CN102425473B (en) * | 2011-09-21 | 2013-06-19 | 重庆长安汽车股份有限公司 | Dual-VVT (Variable Valve Timing) engine oil gallery with hydraulic tappet oil passage |
| CN203035292U (en) * | 2012-12-28 | 2013-07-03 | 安徽江淮汽车股份有限公司 | Dual-lubricating oil way of VVT (variable valve timing) |
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