CN1279270C - Cylinder structure of engine - Google Patents
Cylinder structure of engine Download PDFInfo
- Publication number
- CN1279270C CN1279270C CN 200410096126 CN200410096126A CN1279270C CN 1279270 C CN1279270 C CN 1279270C CN 200410096126 CN200410096126 CN 200410096126 CN 200410096126 A CN200410096126 A CN 200410096126A CN 1279270 C CN1279270 C CN 1279270C
- Authority
- CN
- China
- Prior art keywords
- oil duct
- timing chain
- outside
- inboard
- cylinder block
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/022—Chain drive
-
- 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
- F01M11/02—Arrangements of lubricant conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/18—Means for guiding or supporting belts, ropes, or chains
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention aims to provide a cylinder block structure of an engine having a timing chain device before a cylinder block in which the radius of curvature of a guide face of a chain guide is increased without increasing the width of the engine, the contact pressure of the timing chain with the guide face of the chain guide is reduced, and abrasion of the chain guide by the contact is suppressed. In the cylinder block structure of the engine constituted so that a timing chain device is provided before a cylinder block, and a main gallery formed inside the cylinder block is located outside the chain guide of the timing chain device, the main gallery comprises an inner main gallery provided on the inner side and an outer main gallery which communicates with the main gallery and provided on the outer side of the inner main gallery in a stepped manner, and an oil passage to drop oil downward from the cylinder head side is provided on the outer side in a direction orthogonal to the axis of a crank shaft of the inner main gallery.
Description
Technical field
The invention discloses a kind of engine cylinder body structure that is used for vehicular engine etc., front end at engine cylinder body has the power transmission members that is used to transmit bent axle power, and, be arranged on the main oil gallery in this power transmission members outside perpendicular to the bent axle direction of axis line.
Background technique
In mobile engine, usually the timing chain device is set in place in the timing chain guard of the front-end face of cylinder block.
Fig. 4 is the plan view from the main position of timing chain device that the axis direction of the front end edge bent axle of mobile engine is seen.In Fig. 4, the 5th, the timing chain guard is installed on the front-end face of cylinder block 10 of partial illustration among Fig. 4.The 01st, in cylinder block 10, connect the main oil gallery (oil is logical) that is provided with along the bent axle direction of axis line.20 are mounted in the timing chain device in this timing chain guard 5.
The 13rd, the crankshaft sprocket of this timing chain device 20,10a are the shaft axis of bent axle, and 11 and 12 is admission cam shaft sprocket wheel and the exhaust cam shaft sprocket wheels that are used for driving admission cam shaft and exhaust cam shaft.The 6th, timing chain is erected on crankshaft sprocket 13 and admission cam shaft sprocket wheel 11 and the exhaust cam shaft sprocket wheel 12, and the rotating power of crankshaft sprocket 13 is passed to admission cam shaft sprocket wheel 11 and exhaust cam shaft sprocket wheel 12.
7 and 8 is timing chain guiding devices, is arranged on the two ends of the middle position (part) of this big timing chain 6 of loose change, by the guide surface 7a that between two ends, forms and 8a from this timing chain of guided outside.The 15th, give the timing chain guiding device 8 displacements, adjust the timing chain stretcher of the tension force of timing chain 6.
As shown in Figure 5, in cylinder block 10,, be straight line and connect the above-mentioned main oil gallery 01 of formation along the bent axle direction of axis line.
In addition, in patent documentation 1 (Japanese patent laid-open 9-13932 communique), disclosed main oil gallery constructing technology in a kind of drain pan that main oil gallery is arranged on the cylinder block bottom.Related technology be by making main oil gallery a part relatively and the direction skew that approaches the bent axle shaft axis form secondary oil duct, this pair oil duct is connected with the connecting tube that leads to oil pump, thereby reduced the distance of this main oil gallery and bent axle shaft axis, shortened the length that is connected with oil pump.
(patent documentation 1) Japanese patent laid-open 9-13932 communique
But related prior art has following defective.
In as Fig. 4 and timing chain device 20 shown in Figure 5, because at timing chain guiding device 7 and 8 curved guide surface 7a and the 8a that form, from this timing chain 6 of two guided outside, so, if the radius of curvature of this guide surface 7a and 8a diminishes, contacting of timing chain 6 and guide surface 7a and 8a then taken place easily, if come in contact, will enlarge timing chain guiding device 7 and 8 guide surface 7a, the wearing and tearing of 8a.
Yet, in Fig. 4 and prior art illustrated in fig. 5, owing to be to form main oil gallery 01 at the outer fix upper edge of timing chain guiding device 7 bent axle direction of axis line, therefore, in the radius of curvature R of the timing chain guiding device 7 of these main oil gallery 01 1 sides
1, in the position perpendicular to the bent axle direction of axis line of this main oil gallery 01, promptly horizontal position is restricted.
Therefore, timing chain 6 increases with the contact pressure of the guide surface 7a of timing chain guiding device 7, if avoid because the timing chain wearing and tearing that this contact causes increase, and increase the radius of curvature R of this guide surface 7a
1, then therefore main oil gallery 01 need be arranged in the outside of motor width direction, thereby cause the width of motor to increase.
The technology disclosed according to patent documentation 1, owing to shortened the distance of main oil gallery and bent axle shaft axis, make the shorten length that connects oil pump, thus along the direction setting near the bent axle shaft axis make main oil gallery part skew and secondary oil duct, make main oil gallery form substantial eccentric structure.
But, technology according to patent documentation 1, under the situation that timing chain device shown in Figure 4 is housed, if avoid the contacting of guide surface of timing chain and timing chain guiding device, and the radius of curvature of this guide surface is increased, then owing to be provided with the draining hole in the inboard of this main oil gallery, by the determining positions in this draining hole main oil gallery in the horizontal position of motor, even therefore main oil gallery is become foregoing eccentric structure, the increase of motor width also is inevitable.
Summary of the invention
Therefore, defective in view of prior art, the object of the present invention is to provide a kind of width that need not to increase motor, just can be equipped with in the motor of timing chain device in the cylinder block front portion, the radius of curvature of the guide surface by increasing the timing chain guiding device, and the contact pressure of the guide surface of reduction timing chain and timing chain guiding device, thereby suppress because the engine cylinder body structure of the wearing and tearing of the timing chain guiding device that this contact causes.
In order to achieve the above object, the invention provides a kind of engine cylinder body structure, comprising: the timing chain device, be arranged on the front portion of engine cylinder body, be used to transmit bent axle power; And main oil gallery, described main oil gallery is formed in the described cylinder block along the bent axle axis parallel, and along perpendicular to described bent axle direction of axis line, is positioned at the outside of timing chain guiding device, and described timing chain guiding device is used to guide the chain of described timing chain device;
Wherein, the stairstepping that oil duct and inboard oil duct formed outside described main oil gallery was served as reasons, the stairstepping that oil duct and inboard oil duct constituted outside described main oil gallery was served as reasons, described outside oil duct is in the outside perpendicular to the described timing chain guiding device of described direction of axis line, extend from an end of cylinder block that described timing chain guiding device one side is installed and to be provided with, described inboard oil duct is connected with described outside oil duct and more relies on the inboard than described outside oil duct, from the other end extension setting of described cylinder block.
According to the present invention, by being arranged on perpendicular to bent axle direction of axis line inboard, be motor width direction inboard inboard oil duct and be arranged on than this inboard oil duct rely on the outside outside oil duct, and form the main oil gallery (oil circuit) of stairstepping at the motor width direction, and because outside oil duct has been arranged in timing chain device one side, this outside oil duct is arranged in the outside of motor width direction, thereby makes the increase of radius of curvature of the guiding device of this timing chain device become possibility.
On the other hand, the outside at inboard oil duct, the lubricant oil that is installed in the cylinder cap of described cylinder deck with flowing through is excreted to the draining road that goes below, be arranged in the stair-stepping jump space that the inboard of inboard oil duct and outside oil duct form, so this draining road can be arranged on the inboard that also relies on the motor width direction than the cylinder block that forms outside oil duct.
Therefore, according to the present invention, main oil gallery is made of inboard oil duct and outside oil duct, be the stairstepping that forms along the motor width direction, this outside oil duct is arranged in timing chain device one side, and can effectively utilize the jump spatial arrangement draining road between inboard oil duct and the outside oil duct, and need not to increase the width of motor, just can increase the guide surface radius of curvature of timing chain guiding device, reduce the contact pressure of the guide surface of timing chain and timing chain guiding device, thereby suppress because the wearing and tearing of the timing chain guiding device that this contact causes.
In addition, the present invention preferably adopts and can form inboard oil duct and outside oil duct along the mutual method of removing the mold core in the other direction of bent axle direction of axis line.
By this structure, the core that will be arranged in along this timing chain device direction in the outside oil duct of described timing chain device one side is removed, simultaneously, along the opposite direction that is provided with timing chain device one side the mold core in the inboard oil duct is removed, even like this at the main oil gallery of the horizontal formation stairstepping of motor, also can not need machining, and come moulding by core, thus the manufacture cost of reduction cylinder block.
The effect of invention
According to the present invention, combination by inboard oil duct and outside oil duct, make the main oil gallery that in cylinder block, forms horizontal formation stairstepping along motor, this outside oil duct is arranged in timing chain device one side, and can effectively utilize the jump spatial arrangement draining passage between inboard oil duct and the outside oil duct, and need not to increase the width of motor, just can increase the guide surface radius of curvature of timing chain guiding device, thereby reduce the contact pressure of the guide surface of timing chain and timing chain guiding device, suppress the wearing and tearing of the timing chain guiding device that causes by this contact.
Description of drawings
Fig. 1 is the main oil gallery sectional drawing (section of the A-A line of Fig. 2) in the engine cylinder body according to an embodiment of the invention;
Fig. 2 is the end view drawing of seeing from the bent axle direction of axis line of cylinder block;
Fig. 3 is the plan view from the timing chain device of seeing to the bent axle direction of axis line;
Fig. 4 is the plan view from the timing chain device of the prior art of seeing to the bent axle direction of axis line; And
Fig. 5 is the main oil gallery sectional drawing of prior art.
Embodiment
Below, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.But, the description of the size of the structure member that relates in this embodiment, material, shape and relative position thereof etc., short of specifying just is not used in qualification the present invention, and is simple illustrating.
Fig. 1 is the sectional drawing (sectional drawing of the A-A line of Fig. 2) of main oil gallery in the engine cylinder body according to an embodiment of the invention, and Fig. 2 is the end view drawing of seeing from the bent axle direction of axis line of cylinder block.Fig. 3 is the plan view of seeing from the bent axle direction of axis line of timing chain device.
Fig. 3 has provided timing chain device according to a preferred embodiment of the invention, and among the figure, 5 represent the timing chain guard, is installed on the front-end face of the illustrated cylinder block 10 of part on Fig. 3 right side.1a is an outside oil duct, and 4a is that lug boss, the 4b of this outside oil duct 1a is the lug boss of inboard oil duct 1b, and these will describe in detail in the back.
20 are arranged on the timing chain device in the timing chain guard 5, comprise following structure: the 13rd, not shown and the direct-connected crankshaft sprocket of bent axle, 11 and 12 is admission cam shaft sprocket wheel and the exhaust cam shaft sprocket wheels that are used for driving admission cam shaft and exhaust cam shaft; The 6th, timing chain is erected on crankshaft sprocket 13 and admission cam shaft sprocket wheel 11 and the exhaust cam shaft sprocket wheel 12, and the rotating power of this crankshaft sprocket 13 is passed to admission cam shaft sprocket wheel 11 and exhaust cam shaft sprocket wheel 12.
7 and 8 is the timing chain guiding devices that are arranged in timing chain 6 both sides.This timing chain guiding device is arranged on the both sides of the central position of the big timing chain 6 of the lax change of timing chain 6, guides this timing chain 6 from two outsides with its inboard guide surface 7a and 8a that forms.The 15th, the timing chain tensioning device is used to make timing chain guiding device 8 to produce displacement, adjusts timing chain tension force.
In Fig. 1-2, the 1st, the main oil gallery that in cylinder block 10, forms, by along the outside oil duct 1a of bent axle shaft axis 10a direction setting and inboard oil duct 1b be connected this outside oil duct 1a and constitute with the oil duct 16 that is communicated with of inboard oil duct 1b.
Outside oil duct 1a be arranged on bent axle shaft axis 10a direction installation one side (front portion) of cylinder block of timing chain guard 5 of interior dress timing chain device 20, this inboard oil duct 1b is arranged in opposite direction one side (rear portion) of this timing chain guard 5, in shaft axis 10a direction perpendicular to bent axle, it is the horizontal direction of motor, form outside oil duct 1a than inboard oil duct 1b stairstepping more in the outer part, and connect in the inside of cylinder block 10 by being communicated with oil duct 16.
4a is the lug boss of outside oil duct 1a, and 4b is the lug boss of inboard oil duct.The 18th, the stifled bolt of the oil that shutoff should inboard oil duct 1b opening portion, the 19th, shutoff is communicated with the stifled bolt of oil of oil duct 16 opening portions.
Among Fig. 1, the 2nd, from cylinder cap one side with the draining hole of lubricant oil earial drainage to the below, it forms two (also can be one, more than three or three) along bent axle shaft axis 10a direction on formed jump space, the outside of the inboard oil duct 1b at the rear portion of outside oil duct 1a 17.The 3rd, the lug boss in this draining hole 2.
In addition, outside oil duct 1a and inboard oil duct 1b are along bent axle shaft axis 10a direction, by what form with the casting of mutual opposite direction removal core.
According to this structure, the outside oil duct 1a that is arranged in timing chain device 20 1 sides is removed core along the direction (the place ahead) of this timing chain device 20 to be formed, and inboard oil duct 1b is formed along removing core with the opposite direction of this timing chain device 20, owing to be formed on the inside connection outside oil duct 1a of cylinder block 10 and the connection oil duct 16 of inboard oil duct 1b with core, so even this outside oil duct 1a and inboard oil duct 1b are stairstepping, can use does not need the casting technique of the removal of machining core to make yet.In addition, even outside oil duct 1a and inboard oil duct 1b have formed untouchable stairstepping, also can after the outside bore hole processing of cylinder block 10, be communicated with by the shutoff opening portion.
According to present embodiment, main oil gallery 1 is by in the inboard perpendicular to bent axle shaft axis 10a direction, be the inboard oil duct 1b that is provided with of the horizontal inboard of motor and constitute along the stairstepping of the width direction of motor at the outside oil duct 1a that relies on arranged outside than this inboard oil duct, and, because outside oil duct 1a is arranged in timing chain device 20 1 sides, just this outside oil duct 1a is arranged in the horizontal outside of motor, become possibility so that increase the radius of curvature R (with reference to Fig. 3) of the guiding device of this timing chain device 20.
On the other hand, because in the arranged outside draining hole 2 that more relies on the inboard oil duct 1b that arranges motor width direction inboard than this outside oil duct 1a, make the 17 interior draining holes 2 of can arranging, jump space of outside oil duct 1a and inboard oil duct 1b, so just can this draining hole 2 be arranged on than outside oil duct 1a and also rely on the horizontal outside of motor.
Therefore, according to embodiments of the invention, owing to constitute the main oil gallery 1 of stairstepping by outside oil duct 1a and inboard oil duct 1b at the width direction of motor, and should be arranged in timing chain device 20 1 sides by outside oil duct 1a, can effectively utilize the jump space that forms between the outside of inboard oil duct 1b and the outside oil duct 1a like this draining hole 2 is set, therefore need not to increase the width of motor, just can strengthen the radius of curvature R of the guide surface 7a of timing chain guiding device 7, reduce the contact pressure of the guide surface 7a of timing chain 6 and timing chain guiding device 7, thereby suppress because the wearing and tearing of the timing chain guiding device 7 that this contact causes.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within design of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all be included within the claim scope of the present invention.
Reference numeral
1. main oil gallery 1a. outside oil duct
1b. inboard oil duct 2. is let out oilhole
5. timing chain cover 7,8 timing chain guiders
7a. spigot surface 10. cylinder blocks
10a. bent axle axial line 11. air inlet camshaft sprocket wheels
12. exhaust cam shaft sprocket wheel 13. crankshaft sprockets
16. be communicated with oil duct 20. timing chain devices
Claims (4)
1. engine cylinder body structure comprises:
The timing chain device is arranged on the front end of cylinder block, is used to transmit bent axle power; And
Main oil gallery, described main oil gallery is formed in the described cylinder block along the bent axle axis parallel, and along perpendicular to described bent axle direction of axis line, is positioned at the outside of timing chain guiding device, and described timing chain guiding device is used to guide the chain of described timing chain device;
Described engine cylinder body structure is characterised in that, the stairstepping that oil duct and inboard oil duct constituted outside described main oil gallery was served as reasons, described outside oil duct is arranged on the outside perpendicular to the described timing chain guiding device of described direction of axis line, extends from an end of described cylinder block that described timing chain guiding device one side is installed; Described inboard oil duct is connected with described outside oil duct, and is set to more rely on the inboard than described outside oil duct, from the other end extension of described cylinder block.
2. engine cylinder body structure according to claim 1 is characterized in that, in the arranged outside of described inboard oil duct the draining road is arranged, and is used for being arranged on flowing through oily earial drainage in the cylinder cap at described cylinder block top to the below.
3. engine cylinder body structure according to claim 2 is characterized in that, described draining road is set in place in the horizontal inboard of the described cylinder block that forms described outside oil duct.
4. engine cylinder body structure according to claim 1 is characterized in that, described inboard oil duct and described outside oil duct are by the core moulding in the mold, and described core can oppositely be removed mutually at described bent axle direction of axis line.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003396389 | 2003-11-26 | ||
| JP2003396389A JP4332849B2 (en) | 2003-11-26 | 2003-11-26 | Engine cylinder block structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1621663A CN1621663A (en) | 2005-06-01 |
| CN1279270C true CN1279270C (en) | 2006-10-11 |
Family
ID=34631514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410096126 Expired - Fee Related CN1279270C (en) | 2003-11-26 | 2004-11-26 | Cylinder structure of engine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4332849B2 (en) |
| CN (1) | CN1279270C (en) |
| DE (1) | DE102004056687B4 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100407656C (en) | 2005-12-09 | 2008-07-30 | 华为技术有限公司 | Method and system for managing terminal equipment |
| JP5927935B2 (en) * | 2012-01-24 | 2016-06-01 | トヨタ自動車株式会社 | Blow-by gas reduction device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3703047C1 (en) * | 1987-02-03 | 1988-06-23 | Mtu Friedrichshafen Gmbh | Lube oil channel |
| DE3914124A1 (en) * | 1988-04-30 | 1989-11-09 | Mazda Motor | V-ENGINE |
| JP4275846B2 (en) * | 2000-08-25 | 2009-06-10 | 本田技研工業株式会社 | Hanger structure for V-type vertical engine and outboard motor |
| JP4015511B2 (en) * | 2002-09-11 | 2007-11-28 | 本田技研工業株式会社 | Engine lubrication equipment |
-
2003
- 2003-11-26 JP JP2003396389A patent/JP4332849B2/en not_active Expired - Fee Related
-
2004
- 2004-11-24 DE DE102004056687.9A patent/DE102004056687B4/en not_active Expired - Fee Related
- 2004-11-26 CN CN 200410096126 patent/CN1279270C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004056687B4 (en) | 2015-05-21 |
| CN1621663A (en) | 2005-06-01 |
| JP2005155504A (en) | 2005-06-16 |
| DE102004056687A1 (en) | 2005-06-30 |
| JP4332849B2 (en) | 2009-09-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061011 Termination date: 20201126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |