CN210127920U - Engine fuel injector mounting structure - Google Patents
Engine fuel injector mounting structure Download PDFInfo
- Publication number
- CN210127920U CN210127920U CN201920778658.3U CN201920778658U CN210127920U CN 210127920 U CN210127920 U CN 210127920U CN 201920778658 U CN201920778658 U CN 201920778658U CN 210127920 U CN210127920 U CN 210127920U
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- hole
- engine
- injector
- mounting structure
- fuel injector
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Abstract
The utility model is suitable for an engine fuel injector mounting structure field discloses an engine fuel injector mounting structure, including the engine cylinder lid that has the sprayer mounting hole with be used for with the sprayer pressure equipment in engine cylinder lid's installing support, engine cylinder lid is provided with two at least connection hole sites, at least two connect the hole site set up respectively in the both sides of sprayer mounting hole, the installing support through connect in connect the retaining member locking of hole site in engine cylinder lid. The utility model provides an engine fuel injector mounting structure can solve the installation problem of the sprayer of engine (especially single cylinder engine) well, can not bring the difficulty to the design and the processing of cylinder cap, and simple to operate is swift moreover, simple structure, stability, and the reliability is good.
Description
Technical Field
The utility model belongs to engine fuel injector mounting structure field especially relates to a can be used to single cylinder, multi-cylinder engine fuel injector mounting structure.
Background
At present, the oil feeding system of single cylinder engine rack is generally by a high pressure fuel pipe connection sprayer, among the prior art, generally carry out reaming on the sprayer mounting hole, later install the sprayer bush, but the fixed power between sprayer and the sprayer bush is not enough, and because the design of cylinder cap, the wall thickness around the sprayer mounting hole generally can receive the restriction, if carry out the reaming, can reduce the wall thickness, even have the risk of breaing the intake duct, and need adopt to seal oil and seal up water and seal up, it is complicated to have a structure, the poor problem of stability, the easy risk that appears leaking the oil leak, the reliability is not good enough.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of above-mentioned technical problem at least, provide a sprayer mounting structure, its simple structure, stability are good, the reliability is high.
The technical scheme of the utility model is that: the utility model provides an engine injector mounting structure, including the engine cylinder lid that has the sprayer mounting hole with be used for with the sprayer pressure equipment in the installing support of engine cylinder lid, the engine cylinder lid is provided with two at least connection hole sites, at least two the connection hole site set up respectively in the both sides of sprayer mounting hole, the installing support through connect in the retaining member of connection hole site lock in the engine cylinder lid.
Optionally, the mounting bracket includes a main body portion, the main body portion has an injector connection hole for the injector to be inserted and connected and an oil pipe connection hole for connecting an oil pipe, and the injector connection hole is communicated with the oil pipe connection hole.
Optionally, the fuel injector connecting hole is formed in one end, facing the engine cylinder head, of the main body, the fuel pipe connecting hole is formed in the other end of the main body, and the fuel injector connecting hole is communicated with the fuel pipe connecting hole through a communicating hole.
Optionally, the mounting bracket further comprises connecting portions fixedly connected to or integrally formed on two sides of the main body portion, and the connecting portions are provided with through holes for the locking members to pass through.
Optionally, the through-hole is circular or oblong.
Optionally, the center of each through hole and the center of the fuel injector connecting hole are on the same straight line, and each through hole is symmetrically arranged on two sides of the fuel injector connecting hole.
Optionally, the connecting hole is a threaded hole, and the locking member is a bolt.
Optionally, two connecting hole sites are provided, and the two connecting hole sites are symmetrically arranged on two sides of the oil injector mounting hole.
Optionally, a side surface of the main body portion is provided with a mounting angle control hole groove for controlling a mounting angle of the injector.
Optionally, the front end of the mounting angle control hole slot penetrates through one end, facing the engine cylinder head, of the main body part, and a guide arc surface or a guide inclined surface is arranged at the front end of the mounting angle control hole slot.
The utility model provides an engine injector mounting structure can solve the installation problem of the sprayer of engine (especially single cylinder engine) well, can adjust the sprayer according to sprayer and high pressure fuel pipe's size and connect the hole with oil pipe with the size that connects the hole, and the flexibility is strong, can not bring the difficulty to the design and the processing of cylinder cap, and simple to operate is swift moreover, simple structure, stability, and the reliability is good.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of a fuel injector mounting structure according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of an engine cylinder head in a fuel injector mounting structure according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a mounting bracket in a fuel injector mounting structure according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a mounting bracket in a fuel injector mounting structure according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, directly disposed or connected, or indirectly disposed or connected through intervening elements or intervening structures.
In addition, in the embodiments of the present invention, if there are terms of orientation or positional relationship indicated by "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., it is based on the orientation or positional relationship shown in the drawings or the conventional placement state or use state, and it is only for convenience of description and simplification of description, but does not indicate or imply that the structures, features, devices or elements referred to must have a specific orientation or positional relationship, nor must be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The various features and embodiments described in the detailed description may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and various combinations of features/embodiments are not separately described in order to avoid unnecessary repetition in the present disclosure.
As shown in fig. 1 to 4, an engine fuel injector mounting structure provided in an embodiment of the present invention includes an engine cylinder head 1 and a mounting bracket 3, the engine cylinder head 1 has a fuel injector mounting hole 11, the mounting bracket 3 is used for press-mounting a fuel injector 2 in the fuel injector mounting hole 11 of the engine cylinder head 1, the engine cylinder head 1 is provided with at least two connecting hole sites 12, at least two of the connecting hole sites 12 are respectively disposed at two sides of the fuel injector mounting hole 11, the mounting bracket 3 is locked to the engine cylinder head 1 through a locking member 4 connected to the connecting hole sites 12, the fuel injector 2 is press-mounted in the engine cylinder head 1 through the mounting bracket 3 locked to the engine cylinder head 1, the mounting structure is simple and compact, the connecting hole sites 12 are reserved on a fuel injector mounting plane of the engine cylinder head 1, and difficulties are not brought to design and processing of the engine cylinder head 1, the engine fuel injector mounting structure has the advantages that the engine fuel injector mounting structure is convenient and fast to achieve, high flexibility is achieved, and fuel injectors with different lengths can be matched by adjusting the thickness of the mounting support 3.
Specifically, the mounting bracket 3 includes a main body 31, the main body 31 has an injector connecting hole 312 for inserting the injector 2 and an oil pipe connecting hole 311 for connecting an oil pipe (high-pressure oil pipe), the injector connecting hole 312 is communicated with the oil pipe connecting hole 311, and different injectors 2 and high-pressure oil pipes can be matched by adjusting the size and shape of the injector connecting hole 312 and the oil pipe connecting hole 311 of the mounting bracket 3, thereby further improving the flexibility of the mounting structure.
Specifically, the injector connection hole 312 is disposed at one end of the main body 31 facing the engine head 1, the oil pipe connection hole 311 is disposed at the other end of the main body 31, the injector connection hole 312 and the oil pipe connection hole 311 are communicated through a communication hole, the injector connection hole 312, the oil pipe connection hole 311 and the communication hole 314 may be coaxially disposed, and a diameter of the communication hole 314 may be smaller than diameters of the injector connection hole 312 and the oil pipe connection hole 311.
Specifically, the mounting bracket 3 includes a connecting portion 32, the connecting portion 32 is fixedly connected to or integrally formed on two sides of the main body portion 31, and the connecting portion 32 is provided with a through hole 321 for the retaining member 4 to pass through. The thickness of the connection portion 32 may be smaller than that of the body portion 31.
In the concrete application, through-hole 321 is circular or long circular etc, connection hole site 12 is the screw hole, retaining member 4 is the bolt, and its easy dismounting and connection reliability are high.
Specifically, in this embodiment, two through holes 321 are provided, that is, each connecting portion 32 is provided with one through hole 321, the center of each through hole 321 and the center of the injector connection hole 312 are on the same straight line, and each through hole 321 is symmetrically disposed on two sides of the injector connection hole 312, correspondingly, two connection hole sites 12 are provided, and two connection hole sites 12 are symmetrically disposed on two sides of the injector mounting hole 11, and the locking member 4 can pass through the through hole 321 of the mounting bracket 3 and be locked to the connection hole site 12 of the engine cylinder head 1, so that the mounting bracket 3 and the injector 2 are uniformly stressed, the problem of sealability caused by non-uniform stress is avoided, and the sealing reliability is high.
Specifically, the side surface of the body 31 is provided with the mounting angle control hole 313 for controlling the mounting angle of the injector, so that the structure corresponding to the injector 2 can be engaged with the mounting angle control hole 313 during mounting, and the control accuracy is high.
In a specific application, the front end of the mounting angle control hole 313 penetrates through one end of the main body 31 facing the engine cylinder head 1, and a guide arc surface or a guide inclined surface is arranged at the front end of the mounting angle control hole 313, that is, the front end of the mounting angle control hole 313 is flared, so that the fuel injector 2 can be conveniently connected and positioned.
In this embodiment, the engine fuel injector mounting structure can be used for a single-cylinder engine or a multi-cylinder engine
In specific application, when the engine cylinder cover 1 is machined, two connecting hole sites 12 for connecting the mounting support 3 are designed and machined at the same time except for machining one fuel injector mounting hole 11, and the two connecting hole sites 12 are symmetrically arranged on two sides of the fuel injector mounting hole 11, so that three holes are in a straight line, and the uniform stress of the fuel injector 2 is ensured.
The mounting bracket 3 can determine the sizes of the fuel injector connecting hole 312 and the fuel pipe connecting hole 311 according to the sizes of the fuel injector 2 and the high-pressure fuel pipe, determine the thickness of the mounting bracket 3 according to the length of the fuel injector 2 and the position of a mounting hole position, and determine the mounting angle control hole groove 313 according to the designed mounting angle of the fuel injector 2.
In this embodiment, the mounting process of the engine fuel injector mounting structure may refer to the following: the oil injector 2 is installed in the oil injector installation hole 11, then the installation support 3 is pressed and installed, the position of the oil injector 2 is adjusted, and the position is matched with the installation angle control hole groove 313 to fix the position of the oil injector 2; the locking piece 4 (bolt) penetrates through the through hole 321 of the mounting bracket 3 and is screwed into the connecting hole 12 of the engine cylinder head 1 to press the fuel injector 2 tightly, and then the high-pressure fuel pipe is connected into the fuel pipe connecting hole 311.
The embodiment of the utility model provides an engine fuel injector mounting structure, adopt simple structure to solve the installation problem of engine (especially single cylinder engine) fuel injector well, can be accurate control the mounted position of fuel injector 2; the sizes of the connection holes (the fuel injector connection hole 312 and the fuel pipe connection hole 311) of the mounting bracket 3 can be flexibly adjusted according to the size of the fuel injector 2 and the size of the high-pressure fuel pipe, the adaptability is strong, the flexibility is high, the mounting structure is stable and reliable, the mounted fuel injector is uniformly stressed, and the fuel injector mounting device can be flexibly applied to other occasions needing to fix the fuel injector for testing.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (10)
1. The utility model provides an engine injector mounting structure, its characterized in that, including the engine cylinder lid that has the sprayer mounting hole with be used for with the sprayer pressure equipment in the installing support of engine cylinder lid, the engine cylinder lid is provided with two at least connection hole sites, at least two the connection hole site set up respectively in the both sides of sprayer mounting hole, the installing support through connect in the retaining member of connection hole site lock in the engine cylinder lid.
2. The engine injector mounting structure according to claim 1, wherein the mounting bracket includes a main body portion having an injector attaching hole for attaching the injector and an oil pipe attaching hole for attaching an oil pipe, the injector attaching hole communicating with the oil pipe attaching hole.
3. An engine injector mounting structure according to claim 2, wherein the injector attaching hole is provided at an end of the main body portion facing the engine cylinder head, the oil pipe attaching hole is provided at the other end of the main body portion, and the injector attaching hole and the oil pipe attaching hole communicate with each other through a communication hole.
4. The engine fuel injector mounting structure according to claim 2, wherein the mounting bracket further includes connecting portions fixedly attached to or integrally formed on both sides of the main body portion, the connecting portions each being provided with a through hole for the retaining member to pass through.
5. The engine fuel injector mounting structure according to claim 4, wherein the through hole is circular or oblong.
6. The engine fuel injector mounting structure according to claim 5, wherein centers of the through holes and centers of the fuel injector connection holes are on the same straight line, and the through holes are symmetrically disposed on both sides of the fuel injector connection hole.
7. The engine fuel injector mounting structure according to any one of claims 1 to 6, wherein the attachment hole site is a threaded hole, and the retaining member is a bolt.
8. The engine injector mounting structure according to any one of claims 1 to 6, characterized in that there are two of the connecting hole sites, and the two connecting hole sites are symmetrically disposed on both sides of the injector mounting hole.
9. An engine injector mounting structure according to any one of claims 2 to 6, characterized in that a side surface of said main body portion is provided with a mounting angle control hole groove for controlling a mounting angle of said injector.
10. The engine fuel injector mounting structure according to claim 9, wherein a front end of the mounting angle control hole groove penetrates through an end of the main body portion facing the engine cylinder head, and a guide arc surface or a guide inclined surface is provided at the front end of the mounting angle control hole groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920778658.3U CN210127920U (en) | 2019-05-27 | 2019-05-27 | Engine fuel injector mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920778658.3U CN210127920U (en) | 2019-05-27 | 2019-05-27 | Engine fuel injector mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210127920U true CN210127920U (en) | 2020-03-06 |
Family
ID=69663612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920778658.3U Expired - Fee Related CN210127920U (en) | 2019-05-27 | 2019-05-27 | Engine fuel injector mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210127920U (en) |
-
2019
- 2019-05-27 CN CN201920778658.3U patent/CN210127920U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200306 Termination date: 20200527 |