CN210889173U - Oil sprayer assembly for separated diesel engine - Google Patents
Oil sprayer assembly for separated diesel engine Download PDFInfo
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- CN210889173U CN210889173U CN201920969319.3U CN201920969319U CN210889173U CN 210889173 U CN210889173 U CN 210889173U CN 201920969319 U CN201920969319 U CN 201920969319U CN 210889173 U CN210889173 U CN 210889173U
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- needle valve
- diesel engine
- pressure regulating
- oil
- fuel injector
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Abstract
The utility model discloses a disconnect-type diesel engine is with sprayer assembly, including the fuel sprayer main part, the left side of fuel sprayer main part is provided with into oil pipe connector, the inner chamber that oil pipe connector was connected is provided with the gap filter core, oil duct and needle valve intercommunication are passed through to the one end of gap filter core, the middle part of the inner chamber of needle valve is provided with the needle valve body, the lower part of needle valve inner chamber is provided with the annular chamber, there is the swivel nut outside of needle valve through threaded connection, the upper end of needle valve is provided with the ejector pin, the upper end of ejector pin is provided with the pressure regulating spring, the outside of pressure regulating spring is provided with the pressure regulating screw, the upper end of pressure regulating screw is provided with the pressure regulating nut, the lower extreme. This oil sprayer assembly for disconnect-type diesel engine has solved current diesel engine nozzle annular chamber and needle valve body and has easily been lived by the greasy and not stable problem in the needle valve operation process of diesel engine.
Description
Technical Field
The utility model relates to an engine accessories technical field specifically is a disconnect-type is sprayer assembly for diesel engine.
Background
The single cylinder diesel engine is the ideal power of agricultural machinery, pumping machinery, engineering machinery, mobile power supply and small ship, and along with the improvement of the national environmental protection emission requirement in recent years, and the emission level of the existing single cylinder diesel engine in China lags behind, the domestic market share of the single cylinder diesel engine is gradually compressed; according to the statistics of the Chinese internal combustion engine industry association, the output of single-cylinder diesel engines in 2015 in China is only about half of 800 ten thousand in annual peak value, but the retention of the single-cylinder engines is about 2000 ten thousand; the lagging emission level accelerates the elimination speed of the existing single-cylinder diesel engine, China will comprehensively implement the three emission standards of the non-road state in the end of 2016, and the emission standard of the non-road state 4 is expected to be implemented in 2018, wherein the single-cylinder diesel engine is also within the limit range of the regulation. After the emission regulation is upgraded, the upgrading of the emission technology of the single-cylinder diesel is very urgent; fuel injectors are an updated key component in diesel combustion systems.
The existing diesel engine oil nozzle can be blocked by diesel oil in the long-term use process, the diesel oil can block the annular cavity of the oil nozzle and the position of the needle valve body, and meanwhile, the stability of the needle valve in the movement process is still to be improved.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a disconnect-type diesel engine is with sprayer assembly has solved current diesel engine nozzle annular chamber and needle valve body and has been lived by diesel oil greasiness easily and the problem of stability inadequately in the needle valve operation process.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a disconnect-type diesel engine is with sprayer assembly, includes the fuel sprayer main part, the left side of fuel sprayer main part is provided with into oil pipe connector, the inner chamber that advances oil pipe connector is provided with the gap filter core, oil duct and needle valve intercommunication are passed through to the one end of gap filter core, the middle part of the inner chamber of needle valve is provided with the needle valve body, the lower part of needle valve inner chamber is provided with the annular chamber, there is the swivel nut outside of needle valve through threaded connection, the upper end of needle valve is provided with the ejector pin, the upper end of ejector pin is provided with the pressure regulating spring, the outside of pressure regulating spring is provided with the pressure regulating screw, the upper end of pressure regulating screw is provided with the pressure regulating nut.
Preferably, the oil inlet pipe joint is externally provided with an external thread.
Preferably, the cavity wall of the annular cavity is rotatably connected with a ball body through a pin.
Preferably, the right part of needle valve up end is provided with the installation locating pin, the right part of oil nozzle main part lower extreme face is provided with the locating hole with installation locating pin complex.
Preferably, the outer end face of the lower part of the needle valve body is uniformly provided with 5-6 annular grooves.
(III) advantageous effects
The utility model provides a disconnect-type is sprayer assembly for diesel engine. The method has the following beneficial effects:
the fuel injector assembly for the separated diesel engine is characterized in that an annular cavity is arranged at the lower part of an inner cavity of a needle valve, the cavity wall of the annular cavity is rotatably connected with a ball body through a pin, the ball body is arranged in the annular cavity, diesel firstly enters the annular cavity from an oil duct, the ball body is arranged at two ends of the annular cavity, and the ball body can rotate under the impact of high-pressure oil, so that the diesel cannot block in the annular cavity due to greasiness, and then the diesel is finally sprayed out from an atomizing head of a fuel injector main body through a nozzle, the oil injection efficiency of the fuel injector of the diesel engine is improved due to the fact that the ball body in the annular cavity can effectively prevent the diesel from being accumulated greasiness, the stability and the quality of the fuel injector of the diesel engine are further improved, annular grooves are uniformly arranged on the outer end face of the lower part of the needle valve body, the number, the lateral force is reduced, so that the motion stability of the needle valve body is better increased, the sealing property between the oil nozzle main body and the needle valve is improved, and the reliability of the oil nozzle is also improved, thereby achieving the purposes of ensuring the stability and reliability of the oil nozzle and ensuring the oil nozzle to be blocked due to the fact that the effective surface of the oil nozzle is greasy in the annular cavity.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the present invention with strong changeability;
fig. 3 is a schematic view of the structure of the needle valve body of the present invention.
In the figure: the oil spray nozzle comprises an oil spray nozzle main body 1, an oil inlet pipe joint 2, a gap filter core 3, an oil duct 4, a needle valve 5, a needle valve body 6, an annular cavity 7, a threaded sleeve 8, an ejector rod 9, a pressure regulating spring 10, a pressure regulating screw 11, an oil return pipe 12, a pressure regulating nut 13, an installation positioning pin 14, a pin 15, a ball body 16, an annular groove 17 and a nozzle 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a fuel injector assembly for a split diesel engine comprises a fuel injector main body 1, wherein a fuel inlet pipe joint 2 is arranged on the left side of the fuel injector main body 1, external threads are arranged outside the fuel inlet pipe joint 2, the fuel injector main body 1 and a fuel tank can be conveniently installed and can be conveniently detached and maintained, a gap filter element 3 is arranged in an inner cavity of the fuel inlet pipe joint 2, one end of the gap filter element 3 is communicated with a needle valve 5 through a fuel passage 4, a needle valve body 6 is arranged in the middle of the inner cavity of the needle valve 5, an annular cavity 7 is arranged on the lower portion of the inner cavity of the needle valve 5, a ball body 16 is rotatably connected to the cavity wall of the annular cavity 7 through a pin 15, diesel firstly enters the annular cavity 7 from the fuel passage 4 through the ball body 16 arranged in the annular cavity 7, and the ball body 16 can rotate under the impact of high-pressure fuel due, consequently make diesel oil can not grease the condition that causes the jam in annular chamber 7, then the diesel oil is at last spout from the atomising head of fuel sprayer main part 1 through nozzle 18, because the ball body 16 in annular chamber 7 can prevent effectively that diesel oil from accumulating greatly, has improved diesel engine fuel sprayer oil spout efficiency, has further promoted diesel engine fuel sprayer's stability quality, there is swivel nut 8 outside of needle valve 5 through threaded connection, the upper end of needle valve 5 is provided with ejector pin 9, the upper end of ejector pin 9 is provided with pressure regulating spring 10, the outside of pressure regulating spring 10 is provided with pressure regulating screw 11, the upper end of pressure regulating screw 11 is provided with pressure regulating nut 13, the inner chamber intercommunication of fuel sprayer main part 1 has back oil pipe 12, the right part of needle valve 5 up end is provided with installation locating pin 14, the right part of terminal surface is provided with and installs locating pin 14 complex locating hole under the fuel sprayer main part 1, through being provided with installation locating pin 14, can conveniently improve the packaging efficiency to the location installation of needle valve 5 and fuel sprayer main part 1, the lower extreme of needle valve body 6 is provided with nozzle 18, annular groove 17 has evenly been arranged to the outer terminal surface of needle valve body 6 lower part, the quantity that annular groove 17 set up is 5-6, through setting up annular groove 17, plays fine balanced action to the needle valve body 6 with high-speed motion, has reduced the yawing force to the stability of needle valve body 6 motion has been increased betterly, has improved the leakproofness between fuel sprayer main part 1 and the needle valve 5, has also improved the reliability of fuel sprayer.
When the oil nozzle works, the annular cavity 7 is arranged at the lower part of the inner cavity of the needle valve 5, the cavity wall of the annular cavity 7 is rotatably connected with the ball bodies 16 through the pins 15, diesel oil firstly enters the annular cavity 7 from the oil duct 4 through the ball bodies 16 arranged at two ends of the annular cavity 7, and the ball bodies 16 can rotate under the impact of high-pressure oil, so that the diesel oil cannot be blocked in the annular cavity 7 due to the ball bodies 16 arranged in the annular cavity 7, and then the diesel oil is finally sprayed out from the atomizing head of the oil nozzle main body 1 through the nozzles 18, and the oil injection efficiency of the oil nozzle of the diesel engine can be improved due to the fact that the ball bodies 16 in the annular cavity 7 can effectively prevent the diesel oil from being accumulated to be greasy, the stability and the quality of the oil nozzle of the diesel engine can be further improved, the annular grooves 17 are uniformly arranged on the outer end face of the lower part, the oil nozzle has the advantages that the oil nozzle plays a good balance role in the needle valve body 6 moving at a high speed, the lateral force is reduced, the movement stability of the needle valve body 6 is better increased, the sealing performance between the oil nozzle main body 1 and the needle valve 5 is improved, the reliability of the oil nozzle is also improved, and the purposes that the oil nozzle is stable and reliable, and the effective surface is greasy in the annular cavity 7 to cause blockage are achieved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a disconnect-type diesel engine is with sprayer assembly, includes sprayer main part (1), its characterized in that: an oil inlet pipe joint (2) is arranged on the left side of the oil sprayer main body (1), a gap filter element (3) is arranged in the inner cavity of the oil inlet pipe joint (2), one end of the slit filter element (3) is communicated with the needle valve (5) through an oil duct (4), a needle valve body (6) is arranged in the middle of the inner cavity of the needle valve (5), an annular cavity (7) is arranged at the lower part of the inner cavity of the needle valve (5), the outer part of the needle valve (5) is connected with a threaded sleeve (8) through threads, the upper end of the needle valve (5) is provided with a mandril (9), the upper end of the ejector rod (9) is provided with a pressure regulating spring (10), the outside of the pressure regulating spring (10) is provided with a pressure regulating screw (11), the upper end of pressure regulating screw (11) is provided with pressure regulating nut (13), the inner chamber intercommunication of sprayer main part (1) has back oil pipe (12), the lower extreme of needle valve body (6) is provided with nozzle (18).
2. The fuel injector assembly for a separate diesel engine according to claim 1, characterized in that: and external threads are arranged outside the oil inlet pipe joint (2).
3. The fuel injector assembly for a separate diesel engine according to claim 1, characterized in that: the cavity wall of the annular cavity (7) is rotatably connected with a ball body (16) through a pin (15).
4. The fuel injector assembly for a separate diesel engine according to claim 1, characterized in that: the right part of needle valve (5) up end is provided with installation locating pin (14), the right part of terminal surface is provided with the locating hole with installation locating pin (14) complex under sprayer main part (1).
5. The fuel injector assembly for a separate diesel engine according to claim 1, characterized in that: the needle valve is characterized in that annular grooves (17) are uniformly arranged on the outer end face of the lower portion of the needle valve body (6), and the number of the annular grooves (17) is 5-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969319.3U CN210889173U (en) | 2019-06-25 | 2019-06-25 | Oil sprayer assembly for separated diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969319.3U CN210889173U (en) | 2019-06-25 | 2019-06-25 | Oil sprayer assembly for separated diesel engine |
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| Publication Number | Publication Date |
|---|---|
| CN210889173U true CN210889173U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920969319.3U Active CN210889173U (en) | 2019-06-25 | 2019-06-25 | Oil sprayer assembly for separated diesel engine |
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| CN (1) | CN210889173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279885A (en) * | 2021-06-17 | 2021-08-20 | 江苏八方动力机械有限公司 | Novel oil sprayer |
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2019
- 2019-06-25 CN CN201920969319.3U patent/CN210889173U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279885A (en) * | 2021-06-17 | 2021-08-20 | 江苏八方动力机械有限公司 | Novel oil sprayer |
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