CN101451457A - Lubricating structure for engine cam and rocker arm - Google Patents
Lubricating structure for engine cam and rocker arm Download PDFInfo
- Publication number
- CN101451457A CN101451457A CNA2008102333032A CN200810233303A CN101451457A CN 101451457 A CN101451457 A CN 101451457A CN A2008102333032 A CNA2008102333032 A CN A2008102333032A CN 200810233303 A CN200810233303 A CN 200810233303A CN 101451457 A CN101451457 A CN 101451457A
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- Prior art keywords
- cam
- engine
- cylinder head
- lubricating
- oil
- 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.)
- Pending
Links
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 16
- 239000003921 oil Substances 0.000 claims abstract description 50
- 239000010687 lubricating oil Substances 0.000 claims abstract description 12
- 239000000314 lubricant Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
A lubricating structure for an engine cam and a rocker arm comprises a main lubricating oil channel (11) on an engine cylinder head (1), wherein two small oil channels (12) are further arranged on the engine cylinder head (1), the two small oil channels (12) are communicated with the main lubricating oil channel (11) and a cam lubricating oil pool (13) on the engine cylinder head (1), and the two small oil channels (12) are respectively opposite to an air inlet cam (21) and an air outlet cam (22) on a cam shaft (2). Compared with the lubricating structure of the cam and the rocker arm on the traditional engine, the lubricating structure of the cam and the rocker arm on the engine has the advantages of simple structure, convenient processing, reduced processing cost and convenient processing of a shaft center hole on the camshaft for installing the starting pressure reducing mechanism.
Description
Technical field
The invention belongs to technical field of engines, especially the improvement about the engine oil gallery structure designs.
Background technique
Motor is a kind of machine that runs up, therefore seem very important of the cooling and lubricating that participates in the component of motion in the motor, usually all be provided with oil leab on engine crankshaft casing, cylinder head and the cylinder cap, oilhole on these oil leabs and each component and be distributed in in-engine each big or small oil sump and communicate forms a complete lubrication oil circulation loop under the effect of oil pump.
On existing motor, the oil leab structure of cam and rocking arm has following two kinds usually: a kind of is that the oil duct of lubricant oil on engine cylinder head, cylinder cap enters the oilhole on the camshaft, is flowed out by the oilhole on the cam base circle again, lubricated cam and rocking arm; To be lubricant oil directly enter oilhole on the camshaft through the oil duct on the engine cylinder head to another kind, and then flow out and lubricate cam and rocking arm by the oilhole on the cam base circle.These two kinds of oil leab structures all need be provided with oilhole in the axle center of camshaft, the complex structure of camshaft, the processing cost height, particularly consider the processing of the axle center of camshaft portal assemble start the mechanism of decompressor after, just more be not convenient on camshaft the processing and lubrication oilhole, therefore need the lubricating oil path of cam and rocking arm have been rearranged.
Summary of the invention
The problem to be solved in the present invention provides a kind of easy to process, the engine cam of low cost of manufacture and the lubricating structure of rocking arm.
For solving the problems of the technologies described above, the invention provides the lubricating structure of a kind of engine cam and rocking arm, this lubricating structure has comprised the main oil leab on the engine cylinder head, and also be provided with little oil duct on engine cylinder head, little oil duct is communicated in the cam lubricating oil bath on above-mentioned main oil leab and the engine cylinder head.
Lubricant oil by little oil duct ejection, is directly injected on the cam after arriving main oil leab on the engine cylinder head, again through the rotation of cam with lubricating oil splash to each part of rocking arm, thereby realize lubricated to cam and rocking arm.This lubricant oil road structure is not owing to need to be provided with oilhole on camshaft, the processing of camshaft is more convenient, can cut down finished cost, and conveniently processing axle center hole on camshaft installs the startup mechanism of decompressor.
Above-mentioned little oil duct has two, and two little oil ducts are right against the inlet and outlet cam on the camshaft respectively, directly aims at two cams respectively from the lubricant oil that two little oil ducts eject, to improve the cooling and lubricating effect of each cam and each part of rocking arm.
The present invention compares with the lubricating structure of conventional engines overhead cam and rocking arm, and is simple in structure, easy to process, reduced processing cost, and is convenient to process axle center hole on camshaft the startup mechanism of decompressor is installed.
Description of drawings
Accompanying drawing is a structural representation of the present invention;
Among the figure: 1. engine cylinder head; 11. main oil leab; 12. little oil duct; 13. cam lubricating oil bath; 2. camshaft; 21. intake cam; 22 exhaust cams; 3. rocking arm; 4. engine cylinder cover.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in drawings, the lubricating structure of engine cam and rocking arm includes the main oil leab 11 on the engine cylinder head 1 among the present invention, on engine cylinder head 1, also be provided with little oil duct 12, little oil duct 12 is communicated in the cam lubricating oil bath 13 on above-mentioned main oil leab 11 and the engine cylinder head 1, little oil duct 12 has two, and two little oil ducts 12 are right against the inlet and outlet cam 21 and 22 on the camshaft 2 respectively.
The present invention is not owing to need on camshaft 2 oilhole to be set, and the processing of camshaft 2 is more convenient, can cut down finished cost, and conveniently processing axle center hole on camshaft 2 installs the startup mechanism of decompressor.
Lubricated working procedure of the present invention is: behind the main oil leab 11 on the lubricant oil arrival engine cylinder head 1, by little oil duct 12 ejections, be directly injected on inlet and outlet cam 21 and 22, again through the rotation of inlet and outlet cam 21 and 22 with lubricating oil splash to each part of rocking arm 3, thereby realize advancing the lubricated of cam 21, exhaust cam 22 and rocking arm 3.Article two, the lubricant oil that little oil duct 12 ejects is directly aimed at inlet and outlet cam 21 and 22 respectively, to improve the cooling and lubricating effect of each cam and each part of rocking arm.The cam lubricating oil bath stores lubricant oil for 13 li, when motor has just started, mainly rotates the oil that splashes cam lubricating oil bath 13 by cam and realizes lubricating.
Arrow is represented the flow direction of 11 li of the main oil leab of lubricant oil on engine cylinder head 1 among the figure, and the drop around intake cam 21, exhaust cam 22 and the rocking arm 3 is represented lubricant oil, and 4 is engine cylinder cover.
Claims (2)
1. the lubricating structure of engine cam and rocking arm, comprise the main oil leab (11) on the engine cylinder head (1), it is characterized in that: also be provided with little oil duct (12) on engine cylinder head (1), little oil duct (12) is communicated in the cam lubricating oil bath (13) on above-mentioned main oil leab (11) and the engine cylinder head (1).
2. the lubricating structure of engine cam and rocking arm according to claim 1, it is characterized in that: described little oil duct (12) has two, and two little oil ducts (12) are right against the inlet and outlet cam (21,22) on the camshaft (2) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102333032A CN101451457A (en) | 2008-12-11 | 2008-12-11 | Lubricating structure for engine cam and rocker arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102333032A CN101451457A (en) | 2008-12-11 | 2008-12-11 | Lubricating structure for engine cam and rocker arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101451457A true CN101451457A (en) | 2009-06-10 |
Family
ID=40733903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102333032A Pending CN101451457A (en) | 2008-12-11 | 2008-12-11 | Lubricating structure for engine cam and rocker arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101451457A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386340A (en) * | 2018-12-25 | 2019-02-26 | 苏州帕瓦麦斯动力有限公司 | The engine cylinder head high-efficiency lubricating system of inversion small-size double cylinder generating set |
| CN113847159A (en) * | 2021-10-22 | 2021-12-28 | 重庆隆鑫新能源科技有限公司 | Cylinder head assembly of overhead camshaft and engine |
-
2008
- 2008-12-11 CN CNA2008102333032A patent/CN101451457A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386340A (en) * | 2018-12-25 | 2019-02-26 | 苏州帕瓦麦斯动力有限公司 | The engine cylinder head high-efficiency lubricating system of inversion small-size double cylinder generating set |
| CN113847159A (en) * | 2021-10-22 | 2021-12-28 | 重庆隆鑫新能源科技有限公司 | Cylinder head assembly of overhead camshaft and engine |
| CN113847159B (en) * | 2021-10-22 | 2024-05-10 | 重庆隆鑫新能源科技有限公司 | Cylinder head assembly of overhead camshaft and engine |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090610 |