CN2729352Y - Reinforced diesel engine fuel injector - Google Patents
Reinforced diesel engine fuel injector Download PDFInfo
- Publication number
- CN2729352Y CN2729352Y CN 200420023392 CN200420023392U CN2729352Y CN 2729352 Y CN2729352 Y CN 2729352Y CN 200420023392 CN200420023392 CN 200420023392 CN 200420023392 U CN200420023392 U CN 200420023392U CN 2729352 Y CN2729352 Y CN 2729352Y
- Authority
- CN
- China
- Prior art keywords
- oil injecting
- injecting device
- tight cap
- oil
- injector
- 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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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to an oil injecting device used for the strengthened diesel. The tightening cap head portion (5)of the oil injecting device is multi-angle cinquefoil shape. When the oil injecting device is arranged, the cinquefoil shape of twelve angles on the head portion of the tightening cap on the oil injecting device is tightly wrenched to improve the wrenching moment of the tightening cap (4) of the oil injecting device, and the flat surface sealing requirements of the oil injecting device (2) and the oil injecting nozzle matching component (6) can be satisfied. The operation is convenient to enable the oil injecting device to satisfy the requirements of the injection of high pressure.
Description
One, technical field
The utility model relates to a kind of use for diesel engine fuel injector.
Two. background technique
At present, the tight cap head of known diesel injector is a hexgonal structure, enters oil sprayer from the high pressure fuel of Injection Pump end through the high pressure oil inlet hole, in order to prevent leakage of oil, must be wrenched the tight cap of oil sprayer, with fixing injector nozzle matching parts.But tight cap head is a hexagon, and spanner skids easily, makes to be wrenched moment and to be restricted, thereby influences sealing.
Three. summary of the invention
The purpose of this utility model provides a kind of reinforced diesel injector, because tight cap head is polygonal quincunx, simple in structure, the intensity height is wrenched moment in the time of increasing tight cap installation, prevents the plane sealing leakage of oil.
The utility model is achieved in that a kind of reinforced diesel injector, comprises return tube, oil injector body, and the high pressure oil inlet hole, spill port, tight cap, tight cap head, injector nozzle matching parts, tight cap head is polygonal quincunx.
Above-mentioned reinforced diesel injector, tight cap head polygonal quincunx be 12 jiaos quincunx.
Compared with prior art, characteristics of the present utility model are that tight cap head is polygonal quincunx.During the diesel engine assembling, tight cap is 12 jiaos of plum-shaped structures, because spanner is not easy to skid, so can improve the tight cap tightening torque of oil sprayer, satisfies the plane sealing requirement under the high-pressure injection situation.
Four. description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure, 1 is spill port, and 2 is oil injector body, and 3 is the high pressure oil inlet hole, and 4 is tight cap, and 5 is tight cap head, and 6 is injector nozzle matching parts.
Five. embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Among Fig. 1, reinforced diesel injector, tight cap head 5 is polygonal plum-shaped structure.Through high pressure oil inlet hole 3, enter injector nozzle matching parts 6 from the high pressure fuel of Injection Pump end then, wherein a part of high pressure fuel injection enters gas cylinder burning work done, and some high pressure fuel must flow back to oil-fired system through spill port 1.When oil sprayer is assembled on the diesel engine, in order to prevent the plane sealing leakage of oil, must be wrenched the tight cap 4 of oil sprayer, injector nozzle matching parts 6 is fixed on the oil injector body 2.When tight cap head 5 polygonal quincunx is 12 jiaos of plum-shaped structures, just can increase substantially the moment of being wrenched of the tight cap 4 of oil sprayer, improve back oil injector body 2 and injector nozzle matching parts 6 plane sealing requirements to satisfy jet pressure.
Claims (2)
1, a kind of reinforced diesel injector comprises return tube (1), oil injector body (2), and high pressure oil inlet hole (3), spill port (1), tight cap (4), tight cap head (5), injector nozzle matching parts (6) is characterized in that tight cap head (5) is for polygonal quincunx.
2, reinforced diesel injector according to claim 1, it is characterized in that tight cap head (5) polygonal quincunx be 12 jiaos quincunx.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420023392 CN2729352Y (en) | 2004-06-03 | 2004-06-03 | Reinforced diesel engine fuel injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420023392 CN2729352Y (en) | 2004-06-03 | 2004-06-03 | Reinforced diesel engine fuel injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2729352Y true CN2729352Y (en) | 2005-09-28 |
Family
ID=35048129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420023392 Expired - Lifetime CN2729352Y (en) | 2004-06-03 | 2004-06-03 | Reinforced diesel engine fuel injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2729352Y (en) |
-
2004
- 2004-06-03 CN CN 200420023392 patent/CN2729352Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140603 Granted publication date: 20050928 |