CN203559993U - Independent closed lubricating system of air cylinder cover - Google Patents
Independent closed lubricating system of air cylinder cover Download PDFInfo
- Publication number
- CN203559993U CN203559993U CN201320692099.7U CN201320692099U CN203559993U CN 203559993 U CN203559993 U CN 203559993U CN 201320692099 U CN201320692099 U CN 201320692099U CN 203559993 U CN203559993 U CN 203559993U
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- China
- Prior art keywords
- oil
- main oil
- duct
- gallery
- oil gallery
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- Expired - Lifetime
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- 230000001050 lubricating effect Effects 0.000 title abstract 3
- 239000000446 fuel Substances 0.000 claims description 15
- 238000005461 lubrication Methods 0.000 claims description 15
- 239000003921 oil Substances 0.000 abstract description 146
- 239000010687 lubricating oil Substances 0.000 abstract description 6
- 239000000314 lubricant Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to an independent closed lubricating system of an air cylinder cover. The system comprises an oil supply duct, a main oil duct in the air cylinder cover and a first oil connecting cavity in a cover lid, wherein the joint between the first oil connecting cavity and the main oil duct is arranged at a highest point of the main oil duct; the main oil duct is communicated with the oil supply duct through the first oil connecting cavity; a hydraulic gap adjuster hole is formed in the side surface of the main oil duct and communicated with the main oil duct. According to the independent sealed lubricating system, lubricating oil cannot freely flow out along with other oil ducts under the circumstance that the pressure of the lubricating oil is not applied to the main oil duct; the lubricating oil only can be slowly returned through a gap between a hydraulic tappet and the air cylinder cover; the lubricating oil in the oil duct can be stored for 6 hours.
Description
Technical field
The utility model belongs to technical field of engines, relates to a kind of Novel diesel engine cylinder cover lubrication system, particularly the independent closed lubrication system of a kind of cylinder head.
Background technique
Along with the skill upgrading of modern diesel engine, the deisgn approach of diesel engine is complicated, and the application of various advanced technologies has also brought the lifting of the numerous and diverse and cost of design.In Cylinder head design field, overhead camshaft, hydraulic tappet, the use of chain transmission system and chain tensioning device has all proposed requirement to the lubrication system of cylinder head.Especially hydraulic tappet system requirements lubrication system must keep there is certain lubricant oil under outage state, and can not allow lubricant oil directly leak into oil sump.The layout of whole lubrication system connects other use function and the technology capability that also will take into account cylinder head.Traditional solution is that one-way valve is installed on oil duct, has increased like this technology difficulty and cost, has reduced reliability.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind ofly can guarantee that oil duct is not in the situation that there is no lubricating oil pressure, lubricant oil can freely not gush along with other oil circuit, can only be by the independent closed lubrication system of the cylinder head of the slow oil return in gap between hydraulic tappet and cylinder head.
In order to solve the problems of the technologies described above, the independent closed lubrication system of cylinder head of the present utility model comprises fuel feeding oil duct, is positioned at the main oil gallery of cylinder head and is positioned at first of cover cap to connect oil pocket; The described first joint that connects oil pocket and main oil gallery is positioned at the peak of main oil gallery, and main oil gallery connects oil pocket by first and communicates with fuel feeding oil duct; Hydraulic lash adjuster hole is positioned at the side of main oil gallery, and connects with main oil gallery.
When in engine operation, fuel feeding oil duct produces charge oil pressure, and it is main oil gallery fuel feeding that fuel feeding oil duct connects oil pocket by first.After engine stop work, fuel feeding oil duct pressure disappears, and in oil duct, lubricant oil flows into oil sump downwards.The lubricant oil of fuel feeding oil duct connects oil pocket place fuel feeding oil duct first and separates with main oil gallery, because main oil gallery is at the first peak that connects oil pocket place entrance and be positioned at main oil gallery, therefore the lubricant oil of main oil gallery can be kept in main oil gallery, makes main oil gallery form independently self-enclosed system.For the smooth startup of next motor is prepared.
The utility model is applied on CA4DD motor.Basic principle is to allow main oil gallery self form the oil storage system of a sealing, by design, first company's oil pocket on cover cap is connected main oil gallery with cylinder head fuel feeding oil duct, the first joint that connects oil pocket and main oil gallery is positioned at the peak of main oil gallery, can guarantee that main oil gallery lubricant oil in the situation that there is no lubricating oil pressure can freely not gush along with other oil circuit.Can only the slow oil return by the gap between hydraulic tappet and cylinder head, can make lubricant oil in oil duct preserve 6 hours.
Described main oil gallery comprises the first horizontal oil duct of two longitudinal main oil gallerys and cylinder head front end; Article two, longitudinal main oil gallery is connected by the first horizontal oil duct.
Described hydraulic lash adjuster hole is positioned at the side of two longitudinal main oil gallerys, and connects with two longitudinal main oil gallerys.
Described main oil gallery also comprises the second horizontal oil duct of cylinder head rear end; The second horizontal oil duct communicates with chain tensioning device and chain nozzle, and its one end connects oil pocket by second on cover cap and be connected with a longitudinal main oil gallery wherein, and the joint of second company's oil pocket and this longitudinal main oil gallery is positioned at the peak of main oil gallery.
Cylinder head rear end is designed with chain tensioning device and chain nozzle shares oil duct (i.e. the second horizontal oil duct), and oil duct adopts and once runs through linkage structure, has so both guaranteed the unimpeded of oil duct, has reduced again difficulty of processing.The lubricant oil of the second horizontal oil duct is taken from longitudinal main oil gallery, and second company's oil pocket by design on cover cap is connected with longitudinal main oil gallery.When engine operation, longitudinal main oil gallery produces charge oil pressure, and longitudinally main oil gallery connects oil pocket to the second horizontal oil duct fuel feeding by second.When engine stop is worked, longitudinally main oil gallery charge oil pressure disappears, and the second horizontal oil duct lubricant oil in the situation that there is no charge oil pressure gushes downwards, flows to oil sump.Longitudinal main oil gallery connects oil pocket place with the second horizontal oil duct second and separates, and has guaranteed longitudinal main oil gallery encapsulation.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the independent closed lubrication system architecture stereogram of cylinder head of the present utility model.
Fig. 2 is the plan view of longitudinal main oil gallery and the first horizontal oil duct.
Fig. 3 is fuel feeding oil duct and the first horizontal oil channel structure figure.
Fig. 4 is the partial enlarged drawing of Fig. 2.
Embodiment
As shown in Figure 1,2,3, 4, the closed lubrication system of cylinder head independence of the present utility model comprises fuel feeding oil duct 2, is positioned at the main oil gallery of cylinder head, is positioned at first of cover cap and connects oil pocket 3, second company's oil pocket 10.Described main oil gallery comprises two longitudinal main oil gallerys 1,1 ', the first horizontal oil duct 5 and the second horizontal oil duct 9; Article two, longitudinal main oil gallery 1,1 ' front end are connected by the first horizontal oil duct 5.The first joint that connects oil pocket 3 and longitudinal main oil gallery 1 is positioned at the peak of main oil gallery, and longitudinal main oil gallery 1 connects oil pocket 3 by first and communicates with fuel feeding oil duct 2; On longitudinal main oil gallery 1,1 ', be distributed with 16 hydraulic lash adjuster holes 4, for hydraulic tappet is installed.Longitudinally main oil gallery 1,1 ' adopts the Placement of passing through mutually with hydraulic lash adjuster hole 4.Processing after longitudinal main oil gallery 1,1 ', during processing hydraulic slack adjuster hole 4, longitudinal main oil gallery 1,1 ' machined away to 1/4th, so both guaranteed longitudinal main oil gallery 1,1 ' with being communicated with of hydraulic lash adjuster hole 4, reduced again manufacturing procedure.The second horizontal oil duct 9 communicates with chain tensioning device 11 and chain nozzle 12, and its one end connects oil pocket 10 by second on cover cap and be connected with longitudinal main oil gallery 1, and second connects oil pocket 10 and the joint of longitudinal main oil gallery 1 is positioned at the peak of main oil gallery.Article two, longitudinal main oil gallery 1,1 ' and first plug 6,7,8 sealings of rising for horizontal oil duct 5 terminations, form relatively independent locking system.When engine shutdown, whole engine lubrication system does not have lubricant oil in the situation of engine oil pressure can not let out and get back to oil sump.Main oil gallery internal memory organic oil, while so just having guaranteed next ato unit, the lubricant oil of main oil gallery can be injected in hydraulic tappet fast, guarantees the smooth and easy of engine start, reduces and starts noise, improves the responsiveness of hydraulic tappet.
Claims (4)
1. the independent closed lubrication system of cylinder head, is characterized in that comprising fuel feeding oil duct (2), is positioned at the main oil gallery of cylinder head and is positioned at first of cover cap to connect oil pocket (3); The described first joint that connects oil pocket (3) and main oil gallery is positioned at the peak of main oil gallery, and main oil gallery connects oil pocket (3) by first and communicates with fuel feeding oil duct (2); Hydraulic lash adjuster hole (4) is positioned at the side of main oil gallery, and connects with main oil gallery.
2. the independent closed lubrication system of cylinder head according to claim 1, is characterized in that described main oil gallery comprises the first horizontal oil duct (5) of two longitudinal main oil gallerys (1,1 ') and cylinder head front end; Article two, longitudinal main oil gallery (1,1 ') is connected by the first horizontal oil duct (5).
3. the independent closed lubrication system of cylinder head according to claim 2, is characterized in that described hydraulic lash adjuster hole (4) is positioned at the side of two longitudinal main oil gallerys (1,1 '), and connects with two longitudinal main oil gallerys (1,1 ').
4. the independent closed lubrication system of cylinder head according to claim 1, is characterized in that described main oil gallery also comprises the second horizontal oil duct (9) of cylinder head rear end; The second horizontal oil duct (9) communicates with chain tensioning device (11) and chain nozzle (12), and its one end connects oil pocket (10) by second on cover cap and is connected with a longitudinal main oil gallery wherein, the second joint that connects oil pocket (10) and this longitudinal main oil gallery is positioned at the peak of main oil gallery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320692099.7U CN203559993U (en) | 2013-11-05 | 2013-11-05 | Independent closed lubricating system of air cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320692099.7U CN203559993U (en) | 2013-11-05 | 2013-11-05 | Independent closed lubricating system of air cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559993U true CN203559993U (en) | 2014-04-23 |
Family
ID=50509719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320692099.7U Expired - Lifetime CN203559993U (en) | 2013-11-05 | 2013-11-05 | Independent closed lubricating system of air cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704018A (en) * | 2015-11-13 | 2017-05-24 | 北汽福田汽车股份有限公司 | Engine and vehicle |
-
2013
- 2013-11-05 CN CN201320692099.7U patent/CN203559993U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704018A (en) * | 2015-11-13 | 2017-05-24 | 北汽福田汽车股份有限公司 | Engine and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |