CN201599103U - Cylinder cover for oil inlet and return of oil injector - Google Patents
Cylinder cover for oil inlet and return of oil injector Download PDFInfo
- Publication number
- CN201599103U CN201599103U CN2010201070329U CN201020107032U CN201599103U CN 201599103 U CN201599103 U CN 201599103U CN 2010201070329 U CN2010201070329 U CN 2010201070329U CN 201020107032 U CN201020107032 U CN 201020107032U CN 201599103 U CN201599103 U CN 201599103U
- Authority
- CN
- China
- Prior art keywords
- cylinder head
- oil
- hole
- sprayer
- oil sprayer
- 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
Links
- 238000005516 engineering process Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 79
- 239000000446 fuel Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
Images
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a cylinder head for sprayer advances oil return, it advances the cylinder head body and the cylinder head lateral wall of oil pipe through-hole including being equipped with sprayer mounting groove and sprayer, wherein, sprayer oil pipe through-hole is located the cylinder head lateral wall on cylinder head body upper portion. The utility model discloses a design of sprayer oil feed pipe through-hole and oil return through-hole for the cylinder head inner structure has obtained the simplification, makes water jacket, air flue design space sufficient, and, has saved costly high-pressure connecting pipe and costly slot hole processing technology, reduces the cylinder head rejection rate.
Description
Technical field
The utility model relates to the diesel engine with direct injection technical field, refers to a kind of cylinder head that is used for the oil sprayer oil inlet and oil return particularly.
Technical background
Conventionally known to one of skill in the art; for the earth environment of protecting decline day by day and the requirement of satisfying the various places legislations of environmental protection; the general form that adopts automatically controlled in-cylinder direct injection of modern diesel engine; especially since the high pressure co-rail system widespread adoption, the fuel economy and the emission level of diesel engine are largely increased.
Conventional cylinder inside direct jet type engine, its oil sprayer generally places the cylinder head top, adopts pressing plate to be pressed in the corresponding mounting hole each cylinder of oil nozzle subtend.The current oil sprayer that generally adopts is an electromagnetic valve type, and according to the working principle of electromagnetic valve type fuel injector, when the high-pressure injection fuel oil, oil sprayer must leak away the part low pressure oil, with the control fuel injection quantity.Therefore the passage that advances high pressure fuel, recovery low pressure oil that needs design to be connected on the cylinder head with oil sprayer.For the integral type cylinder head, existing general design proposal is to adopt the high pressure connecting tube to wear cylinder to connect high-pressure oil pipe providing high pressure fuel to oil sprayer, and vertically beats consistent elongated hole in cylinder head and be communicated with the oil sprayer return opening of each cylinder injector to realize outside oil return.Like this, cylinder head installs the high pressure connecting tube will for each cylinder design ladder hole, also to process the oil return slotted hole of vertical each cylinder head of perforation, to such an extent as to make the structures such as cooling jacket, import/exhaust road of the cylinder head inside complicated casting difficulty that becomes, cost height, reject rate height.
Summary of the invention
The purpose of this utility model is exactly that a kind of cylinder head that is used for the oil sprayer oil inlet and oil return will be provided, and makes its internal structure simple, is easy to production and processing.
For realizing this purpose, a kind of cylinder head that is used for the oil sprayer oil inlet and oil return that the utility model is designed, it comprises cylinder head body and the cylinder head sidewall that is provided with oil sprayer mounting groove and oil sprayer oil inlet pipe through hole, wherein, described oil sprayer oil inlet pipe through hole is positioned on the cylinder head sidewall on cylinder head body top.
Described oil sprayer mounting groove is provided with two at least on the cylinder head body, offer to lead to each oil sprayer mounting groove and mutual disconnected oil return through-hole on the sidewall of described cylinder head body.
Described cylinder head body offers at least three oil sprayer mounting grooves along its length direction, offers the oil return through-hole that leads to each oil sprayer mounting groove at described cylinder head body on perpendicular to described cylinder head body length direction.
Advantage of the present utility model: by the design of oil sprayer oil inlet pipe through hole and oil return through-hole, make the cylinder head internal structure be simplified, make water jacket, air flue design space abundance, and, save expensive high pressure connecting tube and expensive long hole processing technology, reduced the cylinder head reject rate.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Wherein, 1-cylinder head, 1-1-oil sprayer mounting groove, 1-2-oil sprayer oil inlet pipe through hole, 1-3-oil return through-hole, 2-oil sprayer, 3-seal ring, 4-union nut, 5-high pressure oil inlet pipe, 6-cylinder head sidewall, 7-oil sprayer return opening.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
As shown in the figure, a kind of cylinder head that is used for the oil sprayer oil inlet and oil return, it comprises cylinder head body 1 and the cylinder head sidewall 6 that is provided with oil sprayer mounting groove 1-1 and oil sprayer oil inlet pipe through hole, and wherein, described oil sprayer oil inlet pipe through hole 1-2 is positioned on the cylinder head sidewall 6 on cylinder head body 1 top.
Described oil sprayer mounting groove 1-1 is provided with two at least on cylinder head body 1, offer to lead to each oil sprayer mounting groove 1-1 and mutual disconnected oil return through-hole 1-3 on the sidewall of described cylinder head body 1.
In the technique scheme, described cylinder head body 1 offers at least three oil sprayer mounting groove 1-1 along its length direction, offers the oil return through-hole 1-3 that leads to each oil sprayer mounting groove 1-1 at described cylinder head body 1 on perpendicular to described cylinder head body 1 length direction.Above-mentioned design makes the latus rectum of oil return through-hole 1-3 reduce, and length significantly shortens.The optimum orientation of oil return through-hole 1-3 is a level, also can be the inclination several angle.This design can be simplified the processing technology of oil return through-hole 1-3, has further reduced the cylinder head reject rate.
During the utility model assembling oil sprayer, oil sprayer 2 is pressed downward and tightly is installed among the oil sprayer mounting groove 1-1, and high pressure oil inlet pipe 5 directly is connected with the filler opening of oil sprayer 2 after being inserted in the union nut 4 that has seal ring 3 and passing oil sprayer oil inlet pipe through hole 1-2.Seal ring 3 had both been realized external sealed in the cylinder head 1, gave again to install to cooperate to stay reasonable deviation surplus.The oil sprayer return opening 7 of oil sprayer 2 is positioned at oil sprayer mounting groove 1-1.The cylinder head body 1 of band oil sprayer 1 moves to cylinder head body 1 outside in when work outward with the oil sprayer oil inlet passage, high pressure oil inlet pipe 5 is directly passed and is connected with oil sprayer 2, realizes the high pressure fuel supply; The low-voltage fuel that the oil return through-hole 1-3 of each cylinder correspondence overflows oil sprayer 2 middle parts flows out to exterior line from the side, returns fuel tank.
Claims (3)
1. cylinder head that is used for the oil sprayer oil inlet and oil return, it comprises cylinder head body (1) and the cylinder head sidewall (6) that is provided with oil sprayer mounting groove (1-1) and oil sprayer oil inlet pipe through hole, it is characterized in that: described oil sprayer oil inlet pipe through hole (1-2) is positioned on the cylinder head sidewall (6) on cylinder head body (1) top.
2. a kind of cylinder head that is used for the oil sprayer oil inlet and oil return according to claim 1, it is characterized in that: described oil sprayer mounting groove (1-1) is provided with two at least on cylinder head body (1), offers to lead to each oil sprayer mounting groove (1-1) and mutual disconnected oil return through-hole (1-3) on the sidewall of described cylinder head body (1).
3. a kind of cylinder head that is used for the oil sprayer oil inlet and oil return according to claim 1 and 2, it is characterized in that: described cylinder head body (1) offers at least three oil sprayer mounting grooves (1-1) along its length direction, offers the oil return through-hole (1-3) that leads to each oil sprayer mounting groove (1-1) at described cylinder head body (1) on perpendicular to described cylinder head body (1) length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201070329U CN201599103U (en) | 2010-01-29 | 2010-01-29 | Cylinder cover for oil inlet and return of oil injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201070329U CN201599103U (en) | 2010-01-29 | 2010-01-29 | Cylinder cover for oil inlet and return of oil injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599103U true CN201599103U (en) | 2010-10-06 |
Family
ID=42810156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201070329U Expired - Lifetime CN201599103U (en) | 2010-01-29 | 2010-01-29 | Cylinder cover for oil inlet and return of oil injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201599103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112689706A (en) * | 2018-09-14 | 2021-04-20 | Avl李斯特有限公司 | Cylinder head |
-
2010
- 2010-01-29 CN CN2010201070329U patent/CN201599103U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112689706A (en) * | 2018-09-14 | 2021-04-20 | Avl李斯特有限公司 | Cylinder head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGFENG COMMERCIAL VEHICLE CO., LTD. Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD. Effective date: 20130917 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430056 WUHAN, HUBEI PROVINCE TO: 442001 SHIYAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130917 Address after: 442001 Shiyan City, Hubei province city Zhangwan District Road No. 2 Patentee after: DONGFENG TRUCKS Co.,Ltd. Address before: 430056 Dongfeng Road, Wuhan Economic & Technological Development Zone, Hubei, Wuhan, China, No. 10 Patentee before: DONGFENG MOTER Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101006 |