CN212337509U - Oil sprayer fixing structure - Google Patents
Oil sprayer fixing structure Download PDFInfo
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- CN212337509U CN212337509U CN202020384111.8U CN202020384111U CN212337509U CN 212337509 U CN212337509 U CN 212337509U CN 202020384111 U CN202020384111 U CN 202020384111U CN 212337509 U CN212337509 U CN 212337509U
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- sprayer
- cylinder head
- briquetting
- fuel injector
- supporting element
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Abstract
The utility model relates to a sprayer technical field especially relates to a sprayer fixed knot constructs, including the briquetting of the installation face butt on one end and the sprayer, the middle part upper surface and the other end of one end butt briquetting and cylinder cap threaded connection's clamp bolt still includes and cylinder cap threaded connection's supporting element, supporting element's top and the bottom butt of the briquetting other end. The utility model provides an in the engine design development process because structural change leads to the fixed difficult problem of sprayer, raises the holding surface of sprayer briquetting, guarantees the compactedness design of cylinder head cover, effectively reduces the weight of cylinder head.
Description
Technical Field
The utility model relates to a sprayer technical field especially relates to a sprayer fixed knot constructs.
Background
In the design and development of diesel engines, the installation of an oil injector is a problem to be considered in the design and development, and relates to the sealing of lubricating oil and gas. In the design process of the engine, due to the limitation of product structures, structures with concave installation surfaces of some oil injectors exist, and the installation design difficulty of the oil injectors with the structures is high.
In the prior art, there is a structure for mounting an oil injector by using a pressing block, for example, chinese patent CN101245752A, which discloses an electric control oil injector pressing device for a diesel engine, comprising a pressing block with two ends respectively pressed on the oil injector and a cylinder head, a pressing bolt capable of pressing the pressing block to fix the oil injector on the cylinder head is arranged between the pressing block and the cylinder head, a pressing block gasket is arranged between the pressing bolt and the pressing block, the pressing block is provided with a conical counter bore, and the outer surface of the pressing block gasket is in conical fit with the inner. Although this structure can be convenient compress tightly fixed mounting on the cylinder head of diesel engine with automatically controlled sprayer to fixed reliable, the effectual sealing performance who guarantees automatically controlled sprayer installation back still has the shortcoming: one end of a pressure block of the oil sprayer needs to be supported by a cylinder cover, so that the top surface of the cylinder cover needs to be arranged higher, and the thickness of the cylinder cover is thickened, so that the weight is not reduced; one end of the pressing block is simply abutted to the upper surface of the cylinder cover, the pressing bolt is obliquely arranged, and the installation stability is poor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sprayer fixed knot constructs aims at solving in the engine design development process because structural change leads to the fixed difficult problem of sprayer, raises the holding surface of sprayer briquetting, guarantees the compactedness design of cylinder head cover, effectively reduces the weight of cylinder head.
The technical scheme of the utility model as follows, a sprayer fixed knot constructs, uses in the engine that adopts camshaft dual-overhead structure, and when this kind of model cylinder head cover arranged, the high, the middle low condition in both sides can appear, the middle low part is sprayer installation position, a sprayer fixed knot construct be used for installing the sprayer on the cylinder cap, the briquetting of installation face butt on one end and the sprayer, the one end butt the middle part upper surface of briquetting and the other end and cylinder cap threaded connection's clamp bolt still include and cylinder cap threaded connection's supporting element, supporting element's top with the bottom butt of the briquetting other end. The utility model adopts the design structure of the heightening pressing block, namely, the top of the supporting element is used as the heightening pressing block of the supporting surface, thereby avoiding that the pressing block is directly arranged on the cylinder cover in the prior art, the installation is firm and stable, and the function of fixing the cylinder cover hood is also played; meanwhile, the height of the cylinder cover can be reduced, the compact design of the cylinder cover hood is ensured, and the weight of the cylinder cover is effectively reduced; the supporting element and the pressing bolt are in threaded connection, the mounting height is adjustable, and the adaptability is high.
Preferably, the mounting surface is formed by two concave step surfaces symmetrically arranged on two sides of the fuel injector, and the pressing block is formed into a fork shape and is respectively abutted against the two concave step surfaces. The concave step surface is used as the pressing surface, the structure is simple, the installation space is saved, and the installation reliability is high due to the adoption of the two pressing surfaces.
Preferably, the compression bolt and the supporting element are both of an outer hexagon bolt structure, so that the structure is simple, and the cost is reduced.
Preferably, the compression bolt and the supporting element are vertically connected with the upper surface of the cylinder cover, so that the cylinder cover is convenient to process and good in installation stability.
Preferably, the distance between the top of the supporting element and the upper edge face of the cylinder cover is set to be greater than 18mm, a sufficient height is reserved for convenient installation, the thickness of the cylinder cover is reduced better, and light weight is achieved.
The utility model has the advantages that:
1. the problem of sunken fixed difficulty of sprayer that leads to in the middle of the cylinder head cover in the engine design is solved, adopt support element threaded connection cylinder head, avoided prior art intermediate pressure piece direct mount on the cylinder head, the installation is firm stable, also plays the effect of fixed cylinder head cover.
2. The supporting surface of the fuel injector pressing block is lifted, the top of the supporting element is used as the supporting surface to cushion the pressing block, the compact design of the cylinder head cover is guaranteed, and the weight of the cylinder head is effectively reduced.
3. The mounting height of the supporting element and the pressing bolt is adjustable, the adaptability is high, and the requirements of different mounting sizes are better met.
Drawings
Fig. 1 is a sectional structural view of a fuel injector fixing structure according to the present invention.
Fig. 2 is an external mounting structure diagram of a fuel injector fixing structure according to the present invention.
Fig. 3 is a structural diagram of the fuel injector according to the present invention.
In the figure: 1-oil injector, 101-mounting surface, 2-cylinder cover, 3-cylinder cover, 4-pressing block, 5-pressing bolt and 6-supporting element.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Example 1:
as shown in fig. 1 and 2, the fuel injector 1 of the present embodiment is used for mounting a fuel injector on a cylinder head 3, and includes a pressure block 4 having one end abutting against a mounting surface 101 on the fuel injector 1, a hold-down bolt 5 having one end abutting against an upper surface of a middle portion of the pressure block 4 and the other end screwed to the cylinder head 3, and a support member 6 screwed to the cylinder head 3, wherein a top portion of the support member 6 abuts against a bottom portion of the other end of the pressure block 4.
In the embodiment, the design structure of the pressure block 4 is adopted, namely the top of the supporting element 6 is used as the supporting surface to press the pressure block 4, so that the pressure block 4 is prevented from being directly arranged on the cylinder cover 3 in the prior art, the installation is firm and stable, and the effect of fixing the cylinder cover 2 is also achieved; meanwhile, the height of the cylinder cover 3 can be reduced, the compact design of the cylinder cover 2 is ensured, and the weight of the cylinder cover 3 is effectively reduced; the mounting height of the supporting element 6 and the pressing bolt 5 is adjustable, and the adaptability is high.
Example 2:
as shown in fig. 1 and 2, when the engine is applied to an engine adopting a camshaft dual-overhead structure, when the cylinder head cover 2 of the engine is arranged, the two sides of the engine are high, and the middle of the engine is low, the middle low part is a mounting part of the fuel injector 1, the engine is used for mounting the fuel injector 1 on the cylinder head 3, and comprises a pressing block 4, one end of the pressing block 4 is abutted to the upper surface of the middle of the pressing block 4, and the other end of the pressing block 5 is in threaded connection with the cylinder head 3, namely, a through hole is formed in the middle of the pressing block 4, and the threaded part of the pressing bolt 5 passes through the through hole and then is; the cylinder head support device further comprises a support element 6 in threaded connection with the cylinder head 3, and the top of the support element 6 is abutted to the bottom of the other end of the pressing block 4 to form a support surface.
In the embodiment, the design structure of the pressure block 4 is adopted, namely the top of the supporting element 6 is used as the supporting surface to press the pressure block 4, so that the pressure block 4 is prevented from being directly arranged on the cylinder cover 3 in the prior art, the installation is firm and stable, and the effect of fixing the cylinder cover 2 is also achieved; meanwhile, the height of the cylinder cover 3 can be reduced, the compact design of the cylinder cover 2 is ensured, and the weight of the cylinder cover 3 is effectively reduced; the mounting height of the supporting element 6 and the pressing bolt 5 is adjustable, and the adaptability is high.
As shown in fig. 3, in the present embodiment, the mounting surface 101 is configured as two concave step surfaces symmetrically disposed on both sides of the fuel injector 1, the pressing block 4 is fork-shaped, and both sides of the fork-shaped abut against the two concave step surfaces, respectively. The concave step surface is used as the pressing surface, the structure is simple, the installation space is saved, and the installation reliability is high due to the adoption of the two pressing surfaces.
In this embodiment, the pressing bolt 5 and the supporting element 6 are both of an outer hexagon bolt structure, the pressing bolt 5 and the supporting element 6 can be adjusted in mounting height through adjusting threads, and the mounting device is strong in adaptability, simple in structure and beneficial to reducing cost.
In the embodiment, the compression bolt 5 and the supporting element 6 are vertically connected with the upper surface of the cylinder cover 3, so that the processing is convenient, and the installation stability is good.
In the embodiment, the distance between the top of the supporting element 6 and the upper side surface of the cylinder cover 3 is set to be greater than 18mm, so that a sufficient height is reserved for convenient installation, the thickness of the cylinder cover 3 is reduced better, and light weight is realized.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (5)
1. The utility model provides a sprayer fixed knot constructs for install sprayer (1) on cylinder head (3), includes briquetting (4) of installation face (101) butt on one end and sprayer (1), one end butt the middle part upper surface and the other end of briquetting (4) and cylinder head (3) threaded connection's clamp bolt (5), its characterized in that: the cylinder head support device is characterized by further comprising a support element (6) in threaded connection with the cylinder head (3), and the top of the support element (6) is abutted to the bottom of the other end of the pressing block (4).
2. A fuel injector fixing structure according to claim 1, characterized in that: the mounting surface (101) is formed into two concave step surfaces which are symmetrically arranged on two sides of the fuel injector (1), and the pressing block (4) is formed into a fork shape and is respectively abutted against the two concave step surfaces.
3. A fuel injector fixing structure according to claim 1 or 2, characterized in that: the compression bolt (5) and the supporting element (6) are both of an outer hexagon bolt structure.
4. A fuel injector fixing structure according to claim 1 or 2, characterized in that: the hold-down bolts (5) and the support members (6) are arranged perpendicular to the upper surface of the cylinder head (3).
5. A fuel injector fixing structure according to claim 1 or 2, characterized in that: the distance between the top of the support element (6) and the upper side of the cylinder head (3) is set to be greater than 18 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020384111.8U CN212337509U (en) | 2020-03-24 | 2020-03-24 | Oil sprayer fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020384111.8U CN212337509U (en) | 2020-03-24 | 2020-03-24 | Oil sprayer fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212337509U true CN212337509U (en) | 2021-01-12 |
Family
ID=74085849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020384111.8U Active CN212337509U (en) | 2020-03-24 | 2020-03-24 | Oil sprayer fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212337509U (en) |
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2020
- 2020-03-24 CN CN202020384111.8U patent/CN212337509U/en active Active
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