CN201133270Y - Engine cylinder block lubricant oil path - Google Patents
Engine cylinder block lubricant oil path Download PDFInfo
- Publication number
- CN201133270Y CN201133270Y CNU2007201297097U CN200720129709U CN201133270Y CN 201133270 Y CN201133270 Y CN 201133270Y CN U2007201297097 U CNU2007201297097 U CN U2007201297097U CN 200720129709 U CN200720129709 U CN 200720129709U CN 201133270 Y CN201133270 Y CN 201133270Y
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- Prior art keywords
- hole
- main bearing
- throttle orifice
- oil
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000000314 lubricant Substances 0.000 title claims description 13
- 239000003921 oil Substances 0.000 claims abstract description 72
- 238000005461 lubrication Methods 0.000 claims description 13
- 239000010721 machine oil Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 8
- 239000010687 lubricating oil Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 18
- 230000001050 lubricating effect Effects 0.000 description 13
- 238000013016 damping Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a novel engine cylinder body lubricating oil passage. The high pressure oil pumped out by a mobile oil pump enters into a main oil passage throughout the front end and the back end of the engine. The main oil passage leads the mobile oil enter into a main bearing lubricating oil passage which is extended to the position of the hole wall of a main bearing hole. A throttle orifice is arranged at the hole wall of the main bearing hole at the lateral side of the main bearing lubricating oil passage. The main bearing hole is equipped with a main shaft bushing which is provided with a first hole, a second hole and an oil slot which ensures that the first hole is communicated with the second hole. The oil slot is arranged annularly along the working face of the main shaft bushing. The first hole and the second hole are respectively connected with the main bearing lubricating oil passage and the throttle orifice. The oil outlet direction of the throttle orifice is towards the direction that a piston is arranged. The utility model can cool and lubricate the piston of the engine under the preconditions that the machining quantity of the cylinder body is not increased and the quantity of parts is reduced, and the utility model reduces the manufacturing and machining cost of the engine comparatively.
Description
Technical field
The utility model belongs to the engine design field, specifically, relates to a kind of pressure cooling and lubricating of supercharged engine piston.
Background technique
Traditionally, the lubricant oil that natural aspiration petrol engine piston dependence connecting rod splashes up can satisfy the cooling and lubricating requirement fully, does not need independent pressure cooling and lubricating.Along with the development of technology, motor adopts various advanced technologies, improves engine performance.Wherein supercharging promptly is a kind of in the advanced technology, and it can make the motor lightweight, thereby improves the Economy of motor.
The appearance of supercharging technology makes the power per liter of motor significantly rise, and this also makes the heat load of motor increase substantially.If the cooling and lubricating of piston is not taken measures, faults such as scuffing of cylinder bore will take place.The cooling and lubricating piston of general supercharged engine, by opening the cooling oilhole on the cylinder block, the nozzle of a band one-way valve is installed then, when engine operation when certain condition need lubricate, one-way valve opens, to the piston skirt oil spout, take away the temperature of piston face by lubricant oil, thus the cooling and lubricating of realizing.
But because the setting of the nozzle of band one-way valve causes amount of parts to increase, and make the processing technology of cylinder block become complicated, the manufacture cost of whole motor also will rise.
The model utility content
The purpose of this utility model just provides a kind of new work engine cylinder block lubricant oil path, can reduce the cooling and lubricating piston of realizing supercharged engine under the prerequisite of number of spare parts again at the amount of finish that need not to increase cylinder block.
For achieving the above object, the utility model has adopted following technological scheme: the high pressure oil that oil pump pumps enters the main oil gallery that runs through the motor front end and back end, main oil gallery is introduced the main bearing lubrication oil duct respectively with machine oil, the main bearing lubrication oil duct extends to the hole wall place of main bearing hole, offer throttle orifice on the hole wall of the main bearing hole of the side of main bearing lubrication oil duct, offer first hole on the main axle bush of installing on the main bearing hole, second hole and with first hole, the oil groove that second hole is communicated with, oil groove is offered along the working surface ring-type of main axle bush, described first hole links to each other with throttle orifice with the main bearing lubrication oil duct respectively with second hole, the oil outlet direction of throttle orifice is pointed to the direction at piston place, to oil outlet one side, its aperture from large to small from the filler opening at main bearing hole place for described throttle orifice.
As shown from the above technical solution, the utility model is the nozzle that replaces one-way valve of the prior art with throttle orifice, has so both simplified the processing of cylinder block, has reduced number of spare parts again, greatly reduces the motor manufacture cost.Because engine oil pressure must be higher than the certain pressure one-way valve and just open, and throttle orifice is being opened always, therefore, adopt throttle orifice when low engine speed, can exert an influence to engine motor oil pressure.This problem can solve by the diameter of control throttle orifice.Because the aperture is smaller, therefore can play same effect with nozzle.Adjusting the angle of inclination of throttle orifice, make the oil outlet direction point to the direction at piston place, is on the piston to guarantee that lubricant oil can be ejected into object, makes it reach best cooling and lubricating effect.
Description of drawings
Fig. 1 is the axonometric drawing that waits of cylinder block;
Fig. 2 is the axonometric drawing that waits of cylinder block fit on main axle bush;
Fig. 3 is the sectional drawing of piston cooling throttle orifice;
Fig. 3 a, 3b and 3c are respectively that three kinds of structures of the piston cooling throttle orifice among Fig. 3 are amplified intention;
Fig. 4,5 is the A-A sectional drawing of Fig. 3, and wherein Fig. 5 is the schematic representation that is equipped with main axle bush.
Embodiment
Figure 1 shows that the axonometric drawing that waits of cylinder block 10, the high pressure oil that oil pump pumps at first enters oil duct 4 by other component oil ducts, enter oil duct 5 then, enter oil duct 6 by oil filter, enter the main oil gallery 1 that runs through the motor front end and back end again, main oil gallery 1 is introduced main bearing lubrication oil duct 20 respectively with machine oil, main bearing lubrication oil duct 20 is communicated with main bearing hole 40, it is the hole wall place that main bearing lubrication oil duct 20 extends to main bearing hole 40, offer throttle orifice 30 on the main bearing hole 40 of the side of main bearing lubrication oil duct 20, offer first hole 51 on the hole wall of the main axle bush of installing on the main bearing hole 40 50, second hole 52 and with first hole 51, the oil groove 53 that second hole 52 is communicated with, promptly first hole 51 and second hole 52 are opened in the oil groove 53, oil groove 53 is offered along the working surface ring-type of main axle bush 50, main axle bush 50 is run through in first hole 51 and second hole 52, internal and external walls is communicated with, described first hole 51 links to each other with throttle orifice 30 with main bearing lubrication oil duct 20 respectively with second hole 52, and the oil outlet direction of throttle orifice 30 is pointed to the direction at piston place.
Figure 2 shows that the axonometric drawing that waits of cylinder block fit on main axle bush, be communicated with first hole 51 on the last main axle bush 50 by last main axle bush 50 finishing bathtray 53, second hole 52 on the last main axle bush 50 is communicated with piston cooling throttle orifice 30 among Fig. 1, high pressure oil at first enters the oil groove 53 of main axle bush 50 along this passage like this, satisfy lubricating to main bearing, enter piston cooling throttle orifice 30 simultaneously, be ejected into piston base, satisfy cooling and lubricating piston.Little the arriving to a certain degree of diameter when throttle orifice 30, oil pressure in the each several part oil duct will satisfy the engine design requirement, if the flow rate of lubricating oil by throttle orifice 30 also satisfies the cooling and lubricating piston requirement simultaneously, throttle orifice 30 is the nozzle of alternative band one-way valve like this.
Figure 3 shows that the sectional drawing of the piston cooling throttle orifice 30 that dissects along the theoretical planes at axis 41 places of the axis 2 of crossing cylinder-bore 3 and main bearing hole 40, wherein Fig. 3 a, Fig. 3 b, Fig. 3 c are the section shapes after three kinds of amplifications of throttle orifice 30.
Shown in Fig. 3 a, 3b, 3c, to oil outlet one side, its aperture from large to small from the filler opening at main bearing hole 40 places for described throttle orifice 30.
Shown in Fig. 3 a, described throttle orifice 30 comprises that two sections straight holes of large aperture and small aperture constitute.
Shown in Fig. 3 b, described throttle orifice 30 comprises the straight hole of the large aperture and the small aperture at two, and the transition of taper hole section is arranged between the two.
Shown in Fig. 3 c, described throttle orifice 30 comprises that the large aperture section at two and taper hole section constitute.
Mainly in order to improve the machining Economy, reduced diameter section mainly plays throttling action to the enlarged diameter section of these three kinds of sectional shapes.The Design of length of reduced diameter section is shorter, and the enlarged diameter section Design of length is long more, and the machining Economy is good more.Reduced simultaneously reduced diameter section itself along the journey damping loss, the effective height that high pressure oil sprays thus will increase.Diameter will inevitably produce the Local Damping loss from large to small the time, the Local Damping loss that different changes of section forms produces also is different, the Local Damping loss that shape among Fig. 3 a produces is maximum, the Local Damping loss that b, c shape produce quite, but the c shape relatively and the b shape lacked the hole of one section minor diameter, when changing to corresponding minor diameter, be the end of throttle orifice by major diameter.Comprehensive several respects factor, 3 kinds of different sectional shape pluses and minuses are as follows as can be seen:
Shape and structure among Fig. 3 a is simple, does not have taper hole, machining good economy performance, but Local Damping loss and bigger than Fig. 3 b, Fig. 3 c along the summation of journey damping loss;
Shape among Fig. 3 b has increased by one section taper hole transition with respect to a shape, and the Local Damping loss can reduce like this, so Local Damping loss and littler than Fig. 3 a shape along the summation of journey damping loss, but the machining Economy is than Fig. 3 a shape difference;
Shape among Fig. 3 c is with respect to the loss of Fig. 3 a, Fig. 3 b shape Local Damping with along the summation minimum of journey damping loss, but the same machining Economy with Fig. 3 b shape is relatively poor, because the end of taper hole is the end of throttle orifice, and the tolerance of the reduced diameter section of throttle orifice is higher, so Fig. 3 c shape is controlled more difficult in mechanical processing process.
The aperture φ 1～3mm of described throttle orifice 30, the throttle orifice diameter that the utility model adopts is φ 1.5mm, generally can not surpass φ 3mm, the diameter of throttle orifice 30 and the oil duct of whole motor are arranged closely related, if the diameter of design does not meet the demands, can change diameter, change the machine oil pump performance, change measure such as other oil duct layouts and realize.
The axis 31 of described throttle orifice 30 and the axis 2 projection angle planar of cylinder-bore 3: 15 °＜r＜75 °, described plane be the plane of the axis 41 of the axis 2 of mistake cylinder-bore 3 simultaneously and main bearing hole 40.
In the plane perpendicular to the axis 41 of main bearing hole 40, the axis 31 of throttle orifice 30 overlaps or forms the angle that approaches to overlap with the projection line of the axis 2 of cylinder-bore 3.
Shown in Figure 3, r is the axis 31 of throttle orifice 30 and the projection angle of axis 2 on this plane of cylinder-bore 3, the r angle is relevant with the size of cylinder-bore 3 centre distance and cylinder-bore 3 diameters, when cylinder-bore 3 centre distance and one timing of cylinder bore dia, by changing the r angle, can find the r angle an of the best, make the cooling and lubricating piston effect reach best.In the plane perpendicular to the axis 41 of main bearing hole 40, the axis 31 of throttle orifice 30 also can design certain included angle with the projection line of the axis 2 of cylinder-bore 3, but the variable angle in this plane is subjected to the restriction of main bearing hole 40 structures, and excursion is less.The section that Fig. 4 provides is just in time perpendicular to the axis 41 of main bearing hole 40, therefrom the axis 31 of current as can be seen legend throttle orifice 30 just in time overlaps with the projection of axis 2 in this plane of cylinder-bore 3, can design certain angle of inclination according to product needed, the angle of so comprehensive both direction forms a space angle, satisfies the cooling and lubricating piston needs easilier like this.Certainly space angle needs more complicated technological equipment for machining, therefore at first uses and only designed an angle of inclination r in the product of the present utility model in Fig. 3 section; Projection angle in Fig. 4 section is zero, and promptly the axis 31 of throttle orifice 30 overlaps with the projection line of the axis 2 of cylinder-bore 3.
In the above description, be that example describes only with illustrated in-line four cylinder engine cylinder, in the cylinder block of other structural type such as V-type engine cylinder block, still can implement.
Claims (7)
1, a kind of new work engine cylinder block lubricant oil path, it is characterized in that: the high pressure oil that oil pump pumps enters the main oil gallery (1) that runs through motor (10) front end and back end, main oil gallery (1) is introduced main bearing lubrication oil duct (20) respectively with machine oil, main bearing lubrication oil duct (20) extends to the hole wall place of main bearing hole (40), offer throttle orifice (30) on the hole wall of the main bearing hole (40) of the side of main bearing lubrication oil duct (20), main bearing hole (40) is gone up on the main axle bush of installing (50) and is offered first hole (51), second hole (52) and with first hole (51), the oil groove (53) that second hole (52) is communicated with, oil groove (53) is offered along the working surface ring-type of main axle bush (50), described first hole (51) links to each other with throttle orifice (30) with main bearing lubrication oil duct (20) respectively with second hole (52), the oil outlet direction of throttle orifice (30) is pointed to the direction at piston place, the filler opening that described throttle orifice (30) is located from main bearing hole (40) is to oil outlet one side, and its aperture from large to small.
2, new work engine cylinder block lubricant oil path according to claim 1 is characterized in that: described throttle orifice (30) is made of two sections straight holes of large aperture and small aperture.
3, new work engine cylinder block lubricant oil path according to claim 1 is characterized in that: described throttle orifice (30) comprises the straight hole of the large aperture and the small aperture at two, and the transition of taper hole section is arranged between the two.
4, new work engine cylinder block lubricant oil path according to claim 1 is characterized in that: described throttle orifice (30) is made of the large aperture section and the taper hole section at two.
5, new work engine cylinder block lubricant oil path according to claim 1 is characterized in that: the aperture φ 1～3mm of described throttle orifice (30).
6, new work engine cylinder block lubricant oil path according to claim 1, it is characterized in that: the axis of described throttle orifice (30) and the axis of cylinder-bore projection angle planar are 15 °＜r＜75 °, and described plane is the plane of crossing the axis (41) of the axis (2) of cylinder-bore (3) and main bearing hole (40) simultaneously.
7, new work engine cylinder block lubricant oil path according to claim 1, it is characterized in that: in the plane perpendicular to the axis (41) of main bearing hole (40), the axis (31) of throttle orifice (30) overlaps or forms the angle that approaches to overlap with the projection line of the axis (2) of cylinder-bore (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201297097U CN201133270Y (en) | 2007-12-26 | 2007-12-26 | Engine cylinder block lubricant oil path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201297097U CN201133270Y (en) | 2007-12-26 | 2007-12-26 | Engine cylinder block lubricant oil path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201133270Y true CN201133270Y (en) | 2008-10-15 |
Family
ID=40061543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201297097U Expired - Lifetime CN201133270Y (en) | 2007-12-26 | 2007-12-26 | Engine cylinder block lubricant oil path |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201133270Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158299B (en) * | 2007-11-07 | 2012-05-23 | 奇瑞汽车股份有限公司 | Engine cylinder block lubricant oil path |
| CN107178400A (en) * | 2017-07-10 | 2017-09-19 | 奇瑞汽车股份有限公司 | Three-cylinder engine lubricating system |
-
2007
- 2007-12-26 CN CNU2007201297097U patent/CN201133270Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158299B (en) * | 2007-11-07 | 2012-05-23 | 奇瑞汽车股份有限公司 | Engine cylinder block lubricant oil path |
| CN107178400A (en) * | 2017-07-10 | 2017-09-19 | 奇瑞汽车股份有限公司 | Three-cylinder engine lubricating system |
| CN107178400B (en) * | 2017-07-10 | 2019-06-14 | 奇瑞汽车股份有限公司 | Three-cylinder engine lubricating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081015 Effective date of abandoning: 20071226 |