CN203809185U - Diesel engine oil sprayer lining - Google Patents
Diesel engine oil sprayer lining Download PDFInfo
- Publication number
- CN203809185U CN203809185U CN201420139623.2U CN201420139623U CN203809185U CN 203809185 U CN203809185 U CN 203809185U CN 201420139623 U CN201420139623 U CN 201420139623U CN 203809185 U CN203809185 U CN 203809185U
- Authority
- CN
- China
- Prior art keywords
- diesel engine
- lining
- bush
- bush body
- 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 - Fee Related
Links
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a diesel engine oil sprayer lining. The lining comprises a lining body, external threads, a guide shaft section and grooves and is characterized in that the inner cavity of the lining body is a stepped inner cavity, is used for mounting an oil sprayer and is evenly provided with the grooves around the edge, the lower end of the lining body is the guide shaft section and is provided with the external threads matched with a diesel engine cylinder head for installing the guide shaft section, the number of the grooves is one or more than one, and the grooves are sinking grooves. The diesel engine oil sprayer lining is simple in installation technology, suitable for copper bushes with different thermal expansion coefficients and different cylinder head materials, good in sealing property, tight in combination, convenient to install and use and low in cost.
Description
Technical field
The utility model belongs to diesel engine field, especially a kind of diesel engine fuel injector bush.
Background technique
Many valve diesel cylinder head is conventionally because the restriction of spatial structure, guarantee again the cooling effect of cylinder cover water jacket simultaneously, cannot oil spout mounting hole be directly set in cylinder head by casting and machining mode, so cylinder head need to be bumped into copper lining, lining lower end is squeezed after rising and is fitted tightly with cylinder head by manufacturing equipment, and top adopts rubber ring to seal.
Summary of the invention
The purpose of this utility model is to provide a kind of bush body to have stepped inner chamber, be used for installing oil sprayer,, there is the guiding of installation shaft part bush body lower end, guiding body is installed and is there is no outside nut, mounting process is simple, adapts to steel bushing and the cylinder cap of different heat expansion guiding, different materials, good airproof performance, in conjunction with closely, easy to install, a kind of diesel engine fuel injector bush that cost is low.
Technical solution of the present utility model is such, a kind of diesel engine fuel injector bush, comprise bush body, outside thread, guiding shaft part, groove, the inner chamber that it is characterized in that bush body (1) is stepped inner chamber, be used for installing oil sprayer, bush body (1) inner chamber ring limit fluted (4) is uniform, bush body (1) lower end is guiding shaft part (3), bush body (1) lower end is designed with the outside thread (2) of guiding shaft part (3) being installed and being coordinated with cylinder cover for diesel engine, groove (4) has more than one, and groove (4) is deep gouge.
The outside thread (2) of bush body (1) is single screw thread.
The outside thread (2) of bush body (1) is double thread screw.
Groove (4) is opened on the top of bush body (1) uniform.
Groove (4) is opened on the top of bush body (1) to be had more than one.
Compared with prior art the beneficial effects of the utility model are: guarantee that work for a long time back bush and cylinder head registration property of motor do not change, and lining assembly process process is good, cylinder head reliability is high.Lining has internal thread and the installation axis of guide with lining reliable fit.In or beyond lining, inner circumference is provided with plural groove, and groove is evenly distributed in bush body.
Accompanying drawing explanation
Fig. 1 is that the groove of a kind of diesel engine fuel injector bush of the utility model is distributed on inner-cavity structure plan view.
Fig. 2 is that the groove of a kind of diesel engine fuel injector bush of the utility model is distributed on inner-cavity structure plan view.
Fig. 3 is that the groove of a kind of diesel engine fuel injector bush of the utility model is distributed on apex structure plan view.
Fig. 4 is that the groove of a kind of diesel engine fuel injector bush of the utility model is distributed on apex structure plan view.
Fig. 5 is prior art oil sprayer bushing schematic diagram.
Fig. 6 is prior art oil sprayer bushing schematic diagram.
Reference character: bush body (1), outside thread (2), guiding shaft part (3), groove (4).
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.In view of copper lining in prior art different from cylinder cap bulk material, thermal expansion coefficient is different, motor is after operation a period of time, registration property changes or because copper sheathing lower end is loosening during dismounting oil sprayer, thereby the infiltration that happens occasionally enters in cylinder, damages oil sprayer and piston etc., cause engine power to decline and scuffing of cylinder bore fault, simultaneously lining is pressed into needs to adopt after cylinder head special device copper sheathing lower end to be squeezed after rising and closely cooperated with cylinder head, the spacious end that technological requirement is high.And bush body is done to essence transformation.
Embodiment 1, with reference to Fig. 1, shown in Fig. 2, at bush body (1) inner chamber, be designed to stepped inner chamber, and on the ladder surface on inner chamber ring limit, design groove (4), groove (4) has more than one, the utility model is uniform with 6, the outside thread (2) that bush body (1) lower end has guiding shaft part (3) external diameter to have installation guiding shaft part (3) to coordinate with cylinder cover for diesel engine, thereby can effectively guarantee that lining and the cylinder head registration property after long-term work does not change, avoid again screw thread directly to contact high-temperature fuel gas causes cylinder head base sheet stresses to concentrate and the problem of cracking simultaneously.Bush body is stainless steel lining body, can be also the steel matter body of the corrosion such as other resistance to antifreeze liquid and water.
Embodiment 2, with reference to embodiment 1, the inner chamber of bush body (1) is designed with stepped inner chamber, but groove (4) is arranged on the top end of bush body (1) uniform, referring to Fig. 3, shown in Fig. 4, the lower end of bush body (1) is designed with the outside thread (2) that guiding shaft part (3) and cylinder cover for diesel engine cooperation are installed, thereby can effectively guarantee that lining and the cylinder head mating feature after long-term work does not change, avoid again screw thread directly to contact high-temperature fuel gas causes cylinder head plate stress to concentrate and the problem of cracking simultaneously, good assembling process, can guarantee when oil sprayer bushing packs cylinder head into stressed even, there is not deformation.
Claims (5)
1. a diesel engine fuel injector bush, comprise bush body, outside thread, guiding shaft part, groove, the inner chamber that it is characterized in that bush body (1) is stepped inner chamber, be used for installing oil sprayer, bush body (1) inner chamber ring limit fluted (4) is uniform, and bush body (1) lower end is guiding shaft part (3), and bush body (1) lower end is designed with the outside thread (2) of guiding shaft part (3) being installed and being coordinated with cylinder cover for diesel engine, groove (4) has more than one, and groove (4) is deep gouge.
2. according to a kind of diesel engine fuel injector bush claimed in claim 1, it is characterized in that the outside thread (2) of bush body (1) is single screw thread.
3. according to a kind of diesel engine fuel injector bush claimed in claim 1, the outside thread (2) that it is characterized in that bush body (1) is double thread screw.
4. according to a kind of diesel engine fuel injector bush claimed in claim 1, it is characterized in that groove (4) opens on the top of bush body (1) uniform.
5. according to a kind of diesel engine fuel injector bush claimed in claim 1, it is characterized in that groove (4) opens on the top of bush body (1) and have more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139623.2U CN203809185U (en) | 2014-03-26 | 2014-03-26 | Diesel engine oil sprayer lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420139623.2U CN203809185U (en) | 2014-03-26 | 2014-03-26 | Diesel engine oil sprayer lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809185U true CN203809185U (en) | 2014-09-03 |
Family
ID=51447950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420139623.2U Expired - Fee Related CN203809185U (en) | 2014-03-26 | 2014-03-26 | Diesel engine oil sprayer lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809185U (en) |
-
2014
- 2014-03-26 CN CN201420139623.2U patent/CN203809185U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 |