CN105221314A - Carbon deposition prevention oil sprayer - Google Patents
Carbon deposition prevention oil sprayer Download PDFInfo
- Publication number
- CN105221314A CN105221314A CN201510716642.6A CN201510716642A CN105221314A CN 105221314 A CN105221314 A CN 105221314A CN 201510716642 A CN201510716642 A CN 201510716642A CN 105221314 A CN105221314 A CN 105221314A
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- CN
- China
- Prior art keywords
- cavity
- hole
- oil
- plunger
- valve
- 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.)
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Links
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 27
- 230000008021 deposition Effects 0.000 title claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract description 12
- 230000002265 prevention Effects 0.000 title abstract 2
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims description 38
- 239000000446 fuel Substances 0.000 claims description 11
- 239000002828 fuel tank Substances 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 9
- 239000007924 injection Substances 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract 11
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000003502 gasoline Substances 0.000 description 21
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a carbon deposition prevention oil sprayer, which comprises: the main body is provided with a shell, a plunger, a nozzle and a controller, wherein a cavity is arranged in the shell, the plunger is hermetically and slidably matched in the cavity, a liquid inlet hole and a liquid return through hole are formed in the shell, the controller is in transmission connection with the plunger so that the controller drives the plunger to slide in the cavity, a liquid outlet through hole is formed in the bottom end of the cavity, and the liquid inlet hole and the liquid return through hole are respectively communicated with an oil circuit of an oil tank; the reversing valve is provided with an oil injection state position and a non-oil injection state position, when the controller drives the plunger and drives the reversing valve to be in the non-oil injection state position, the liquid inlet hole is communicated with the cavity, and meanwhile, the liquid outlet through hole of the cavity is communicated with the liquid return through hole through the reversing valve and is in an open circuit state with the nozzle; when the controller drives the plunger and drives the reversing valve to be in an oil injection state, the plunger blocks the liquid inlet hole, and the liquid outlet through hole of the cavity is communicated with the nozzle through the reversing valve and is in an open circuit state with the liquid return through hole. The carbon deposition condition of the oil sprayer can be effectively improved, and the service life of the oil sprayer is prolonged.
Description
Technical field
The present invention relates to a kind of anti-carbon deposition oil sprayer.
Background technique
At present, the oil sprayer carbon distribution of in-cylinder direct fuel-injection engine mainly comprises two kinds of situations: gasoline deposits soot particulate matter that the gasoline in the carbon distribution of formation and cylinder after non-Thorough combustion formed or the carbon distribution that colloidal material is formed in the accumulation of the valve body place of oil sprayer in oil sprayer in oil sprayer after decomposes, need on the one hand to cool for oil sprayer, thus reduce the temperature of gasoline channel, reduce the temperature that gasoline flows through passage, reduce the flow stagnation time of gasoline in oil sprayer simultaneously, reduce the deposition after gasoline decomposes; On the other hand, the high-temperature gas after control valve accurate in oil sprayer and cylinder combustion being burnt is separated, thus reduces soot particulate matter that the gasoline after non-Thorough combustion formed or colloidal material accumulate formation carbon distribution at the valve body place of oil sprayer.
Existing oil sprayer generally adopts the multiple type of cooling to reduce the temperature of oil sprayer, effect is played for the carbon distribution reducing the first type, but the cooling position of these types of cooling is limited, can not cool the passage that gasoline all in oil sprayer flows through equably, existing oil sprayer mostly adopts electromagnetic valve mode simultaneously, when spool and valve body are opened, gasoline in oil sprayer just can spray from nozzle, the gasoline of oil sprayer just can flow, and within the most of the time, oil sprayer not oil spout, gasoline in oil sprayer is in quiet steady state, for the decomposition deposition of gasoline creates condition.
Summary of the invention
Technical problem to be solved by this invention is the defect overcoming prior art, provides a kind of anti-carbon deposition oil sprayer, and it effectively can improve oil sprayer carbon distribution situation, improves the working life of oil sprayer.
In order to solve the problems of the technologies described above, technological scheme of the present invention is: a kind of anti-carbon deposition oil sprayer, and it comprises:
Main body, described main body has housing, plunger, nozzle and controller, a cavity is provided with in housing, described plunger seal is sliding to be fitted in cavity, described housing has an inlet opening and a fluid through-hole, described controller is connected with plunger driving, so that controller drive plunger is slided in cavity, the bottom of cavity is provided with out fluid through-hole, and described inlet opening is connected with the oil circuit of fuel tank respectively with time fluid through-hole;
Selector valve, described selector valve is provided with oil spout state position and not oil spout state position, when controller drive plunger and when driving selector valve to be in not oil spout state position, described inlet opening is connected with cavity, and the fluid through-hole that goes out of cavity is connected with time fluid through-hole by selector valve and is in turnoff state with nozzle simultaneously; When controller drive plunger and when driving selector valve to be in oil spout state position, described plunger blocks inlet opening, the fluid through-hole that goes out of cavity is connected with nozzle by selector valve and is in turnoff state with time fluid through-hole simultaneously.
Further provide a kind of concrete structure of selector valve to meet the needs of various state position, described selector valve comprises valve body, spool and returning spring, valve pocket is provided with in valve body, spool is sliding to be fitted in valve pocket, valve pocket is divided into uuper valve chamber and lower valve chamber by described spool, the upper end entrance of valve pocket is connected with cavity, the two ends of described returning spring are connected to the bottom of spool and the diapire of lower valve chamber respectively, when selector valve is in not oil spout state position, described uuper valve chamber is connected with time fluid through-hole by the first connecting pipeline, when selector valve is in oil spout state position, described uuper valve chamber is connected with nozzle by the second connecting pipeline.
Further provide a kind of concrete structure of the first connecting pipeline to make the first connecting pipeline be communicated with by the action of spool or to cut off, described first connecting pipeline is connecting tube, annular groove and branch mouth, connecting tube and branch mouth are separately positioned on valve body, annular groove is arranged on spool, branch mouth is connected with time fluid through-hole, when selector valve is in not oil spout state position, described connecting tube, annular groove are connected successively with branch mouth.
Further in order to prevent the carbon distribution of spool face better, be conducive to the life-span of improving oil sprayer, described second connecting pipeline is connecting tube, described connecting tube is arranged on valve body, one end of described connecting tube is connected with nozzle, when selector valve is in oil spout state position, the other end of described connecting tube is connected with uuper valve chamber.
Further, described valve body is provided with block and lower block in valve pocket, and when selector valve is in not oil spout state position, the upper end of described spool is connected on block; When selector valve is in oil spout state position, the lower end of described spool is connected on lower block.
Further provide a kind of concrete structure of oil circuit of fuel tank, the oil circuit of described fuel tank has high pressure oil pump and low pressure fuel pump, the import of low pressure fuel pump is connected with fuel tank, the import of high pressure oil pump is connected with time fluid through-hole with low pressure oil delivery side of pump respectively, and high pressure oil delivery side of pump is connected with inlet opening.
Further in order to control fuel injection quantity well, described controller is motor-driven screw body, and the lower end of screw body is connected with plunger.
Further, described cavity comprises the plunger cavity and conical cavity that are connected together, described in go out the bottom that fluid through-hole is arranged on conical cavity.
After have employed technique scheme, the present invention has following beneficial effect:
1, when anti-carbon deposition oil sprayer is in not oil spout state, gasoline is in continuous flowing state in oil sprayer, both can lower the temperature to oil sprayer, make gasoline not easily decomposes, the gasoline simultaneously continuing flowing not easily makes a small amount of sediments wherein be deposited in the vias inner walls in oil sprayer, thus effectively improve oil sprayer carbon distribution situation, improve the working life of oil sprayer.
2, because spool is communicated with nozzle by connecting tube, relative to spool in existing oil sprayer and the valve body arrangement near nozzle, the particulate matter produced after cylinder combustion is burnt or colloidal material not easily enter connecting tube and are attached to the surface of spool, thus prevent the carbon distribution of spool face, be conducive to the life-span of improving oil sprayer.
3, oil injector single fuel injection quantity in the present invention, the distance dependent moved down from being sealed into fluid apertures completely with plunger, therefore the control of fuel injection quantity can be come accurately to control by motor, screw body.
Accompanying drawing explanation
Fig. 1 is the structural representation of anti-carbon deposition oil sprayer of the present invention;
Fig. 2 is the structural representation of housing of the present invention;
Fig. 3 is the structural representation that selector valve of the present invention is in not oil spout state position;
Fig. 4 is the structural representation that selector valve of the present invention is in oil spout state position;
The fundamental diagram of Fig. 5 position oil supply system of the present invention.
Embodiment
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation.
As shown in Fig. 1 ~ 5, a kind of anti-carbon deposition oil sprayer, it comprises:
Main body, described main body has housing 1, plunger 11, nozzle 9 and controller 8, a cavity is provided with in housing 1, described plunger 11 seals to slide and fits in cavity, described housing 1 has an inlet opening 6 and a fluid through-hole 5, described controller 8 is in transmission connection, so that controller 8 drive plunger 11 is slided in cavity with plunger 11, the bottom of cavity is provided with out fluid through-hole 16, and described inlet opening 6 is connected with the oil circuit of fuel tank respectively with time fluid through-hole 5;
Selector valve 10, described selector valve 10 is provided with oil spout state position and not oil spout state position, when controller 8 drive plunger 11 and when driving selector valve 10 to be in not oil spout state position, described inlet opening 6 is connected with cavity, and the fluid through-hole 16 that goes out of cavity is connected with time fluid through-hole 16 by selector valve 10 and is in turnoff state with nozzle 9 simultaneously; When controller 8 drive plunger 11 and when driving selector valve 10 to be in oil spout state position, described plunger 11 blocks inlet opening 6, the fluid through-hole 16 that goes out of cavity is connected with nozzle 9 by selector valve 10 and is in turnoff state with time fluid through-hole 5 simultaneously.
As shown in figs. 34, described selector valve 10 comprises valve body 4, spool 20 and returning spring 27, valve pocket 19 is provided with in valve body 4, spool 20 is sliding to be fitted in valve pocket 19, valve pocket 19 is divided into uuper valve chamber and lower valve chamber by described spool 20, the upper end entrance of valve pocket 19 is connected with cavity, the two ends of described returning spring 27 are connected to the bottom of spool 20 and the diapire of lower valve chamber respectively, when selector valve 10 is in not oil spout state position, described uuper valve chamber is connected with time fluid through-hole 16 by the first connecting pipeline, when selector valve 10 is in oil spout state position, described uuper valve chamber is connected with nozzle 9 by the second connecting pipeline.
As shown in figs. 34, described first connecting pipeline is connecting tube 25, annular groove 21 and branch mouth 22, connecting tube 25 and branch mouth 22 are separately positioned on valve body 4, annular groove 21 is arranged on spool 20, branch mouth 22 is connected with time fluid through-hole 5, when selector valve 10 is in not oil spout state position, described connecting tube 25, annular groove 21 are connected successively with branch mouth 22.
As shown in figs. 34, described second connecting pipeline is connecting tube 26, and described connecting tube 26 is arranged on valve body 4, and one end of described connecting tube 26 is connected with nozzle 9, when selector valve 10 is in oil spout state position, the other end of described connecting tube 26 is connected with uuper valve chamber.
As shown in figs. 34, described valve body 4 is provided with block 23 and lower block 24 in valve pocket 19, and when selector valve 10 is in not oil spout state position, the upper end of described spool 20 is connected on block 23; When selector valve 10 is in oil spout state position, the lower end of described spool 20 is connected on lower block 24.
As shown in Figure 5, the oil circuit of described fuel tank has high pressure oil pump M1 and low pressure fuel pump M2, the import of low pressure fuel pump M2 is connected with fuel tank, and the import of high pressure oil pump M1 is connected with time fluid through-hole 5 with the outlet of low pressure fuel pump M2 respectively, and the outlet of high pressure oil pump M1 is connected with inlet opening 6.
Described controller 8 is motor-driven screw body, and the lower end of screw body is connected with plunger 11, but is not limited thereto.
As shown in Figure 1, 2, described cavity comprises the plunger cavity 2 and conical cavity 3 that are connected together, described in go out the bottom that fluid through-hole 16 is arranged on conical cavity 3.
Working principle of the present invention is as follows:
(1) when oil sprayer not oil spout, Electric Machine Control plunger 11 in controller 8 moves to top limit position, gasoline pumps into plunger cavity 2 from inlet opening 6 by the high pressure oil pump M1 of gasoline, automobile passes through fluid through-hole 16 and enters in selector valve 10, now spool 20 is positioned at position spacing to it by upper link stopper 23 topmost, gasoline enters branch mouth 22 from connecting tube 25 through annular groove 21, flows into back fluid through-hole 5 by branch mouth 22, is flowed to the ingress of high pressure oil pump M1 by go back to fluid through-hole 5;
(2) when oil sprayer oil spout, Electric Machine Control plunger 11 in controller 8 moves down, after plunger 11 closes inlet opening 6, when plunger 11 continues to move down, oil pressure in plunger cavity 2 below plunger 11 raises, this oil pressure counter is through the elastic force of the returning spring 27 of setting, spool 20 is made to be moved downward to lower block 24 place, connecting tube 25 connecting tube lower end mouth 252 and branch mouth 22 between path be cut off, the gasoline simultaneously in valve pocket 19 flows out from the connecting tube upper end-hole 261 of connecting tube 26 and sprays from nozzle 9.
(3) after injection process terminates, controller 8 controls plunger 11 and moves up, owing to there is degree of vacuum in the plunger cavity 2 on the downside of plunger 11 and valve pocket 19, under spring force, spool 20 return, connecting tube, upper end-hole 252 was communicated with branch mouth 22, when plunger 11 continues to move up, gasoline can from the ingress of high-pressure service pump M1 along returning fluid through-hole 5 reverse flow and entering in plunger cavity 2, thus minimizing moves resistance due to degree of vacuum in plunger 11 generation, when inlet opening 6 is communicated with again with plunger cavity 2, again enter in plunger cavity 2 by the high pressure gasoline of high-pressure service pump M1 pumping, thus make the oil pressure in plunger cavity 2 reach setting value.
Above-described specific embodiment; technical problem, technological scheme and beneficial effect that the present invention solves are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. an anti-carbon deposition oil sprayer, is characterized in that, it comprises:
Main body, described main body has housing (1), plunger (11), nozzle (9) and controller (8), housing is provided with a cavity in (1), described plunger (11) sealing is sliding to be fitted in cavity, described housing (1) has an inlet opening (6) and a fluid through-hole (5), described controller (8) and plunger (11) are in transmission connection, so that controller (8) drive plunger (11) is slided in cavity, the bottom of cavity is provided with out fluid through-hole (16), described inlet opening (6) is connected with the oil circuit of fuel tank respectively with time fluid through-hole (5),
Selector valve (10), described selector valve (10) is provided with oil spout state position and not oil spout state position, when controller (8) drive plunger (11) and when driving selector valve (10) to be in not oil spout state position, described inlet opening (6) is connected with cavity, and the fluid through-hole (16) that goes out of cavity is connected by selector valve (10) with time fluid through-hole (16) and is in turnoff state with nozzle (9) simultaneously; When controller (8) drive plunger (11) and when driving selector valve (10) to be in oil spout state position, described plunger (11) blocks inlet opening (6), and the fluid through-hole (16) that goes out of cavity is connected with nozzle (9) by selector valve (10) and is in turnoff state with time fluid through-hole (5) simultaneously.
2. anti-carbon deposition oil sprayer according to claim 1, it is characterized in that: described selector valve (10) comprises valve body (4), spool (20) and returning spring (27), valve pocket (19) is provided with in valve body (4), spool (20) is sliding to be fitted in valve pocket (19), valve pocket (19) is divided into uuper valve chamber and lower valve chamber by described spool (20), the upper end entrance (17) of valve pocket (19) is connected with cavity, the two ends of described returning spring (27) are connected to the bottom of spool (20) and the diapire of lower valve chamber respectively, when selector valve (10) is in not oil spout state position, described uuper valve chamber is connected with time fluid through-hole (16) by the first connecting pipeline, when selector valve (10) is in oil spout state position, described uuper valve chamber is connected with nozzle (9) by the second connecting pipeline.
3. anti-carbon deposition oil sprayer according to claim 2, it is characterized in that: described first connecting pipeline is connecting tube (25), annular groove (21) and branch mouth (22), connecting tube (25) and branch mouth (22) are separately positioned on valve body (4), annular groove (21) is arranged on spool (20), branch mouth (22) is connected with time fluid through-hole (5), when selector valve (10) is in not oil spout state position, described connecting tube (25), annular groove (21) are connected successively with branch mouth (22).
4. the anti-carbon deposition oil sprayer according to Claims 2 or 3, it is characterized in that: described second connecting pipeline is connecting tube (26), described connecting tube (26) is arranged on valve body (4), one end of described connecting tube (26) is connected with nozzle (9), when selector valve (10) is in oil spout state position, the other end of described connecting tube (26) is connected with uuper valve chamber.
5. anti-carbon deposition oil sprayer according to claim 2, it is characterized in that: described valve body (4) is provided with upper block (23) and lower block (24) in valve pocket (19), when selector valve (10) is in not oil spout state position, the upper end of described spool (20) is connected on block (23); When selector valve (10) is in oil spout state position, the lower end of described spool (20) is connected on lower block (24).
6. anti-carbon deposition oil sprayer according to claim 1, it is characterized in that: the oil circuit of described fuel tank has high pressure oil pump (M1) and low pressure fuel pump (M2), the import of low pressure fuel pump (M2) is connected with fuel tank, the import of high pressure oil pump (M1) is connected with time fluid through-hole (5) with the outlet of low pressure fuel pump (M2) respectively, and the outlet of high pressure oil pump (M1) is connected with inlet opening (6).
7. anti-carbon deposition oil sprayer according to claim 1, is characterized in that: described controller (8) is motor-driven screw body, and the lower end of screw body is connected with plunger (11).
8. anti-carbon deposition oil sprayer according to claim 1, it is characterized in that: described cavity comprises the plunger cavity (2) and conical cavity (3) that are connected together, described in go out the bottom that fluid through-hole (16) is arranged on conical cavity (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510716642.6A CN105221314B (en) | 2015-10-29 | 2015-10-29 | Carbon deposition prevention oil sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510716642.6A CN105221314B (en) | 2015-10-29 | 2015-10-29 | Carbon deposition prevention oil sprayer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105221314A true CN105221314A (en) | 2016-01-06 |
| CN105221314B CN105221314B (en) | 2017-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510716642.6A Active CN105221314B (en) | 2015-10-29 | 2015-10-29 | Carbon deposition prevention oil sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221314B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804909A (en) * | 2016-05-09 | 2016-07-27 | 常州机电职业技术学院 | Carbon deposition prevention oil sprayer |
| CN106322435A (en) * | 2016-08-26 | 2017-01-11 | 天津成立航空技术有限公司 | Method for eliminating carbon deposition fault of fuel nozzle of aircraft engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001029395A2 (en) * | 1999-10-22 | 2001-04-26 | Robert Bosch Gmbh | Hydraulic control device, in particular for an injector |
| KR20020051618A (en) * | 2000-12-23 | 2002-06-29 | 이계안 | Injector for direct injection type diesel engine |
| CN104265533A (en) * | 2014-07-31 | 2015-01-07 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Novel common rail oil injector |
| CN104564460A (en) * | 2014-12-29 | 2015-04-29 | 沪东重机有限公司 | Supercharged common rail fuel injection system of marine low-speed diesel engine |
| CN104632485A (en) * | 2014-12-29 | 2015-05-20 | 沪东重机有限公司 | Common-rail fuel oil jet system controlled by double electromagnetic valves and applied to low-speed diesel engine for ship |
| CN205064156U (en) * | 2015-10-29 | 2016-03-02 | 常州机电职业技术学院 | Carbon deposition prevention oil sprayer |
-
2015
- 2015-10-29 CN CN201510716642.6A patent/CN105221314B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001029395A2 (en) * | 1999-10-22 | 2001-04-26 | Robert Bosch Gmbh | Hydraulic control device, in particular for an injector |
| KR20020051618A (en) * | 2000-12-23 | 2002-06-29 | 이계안 | Injector for direct injection type diesel engine |
| CN104265533A (en) * | 2014-07-31 | 2015-01-07 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Novel common rail oil injector |
| CN104564460A (en) * | 2014-12-29 | 2015-04-29 | 沪东重机有限公司 | Supercharged common rail fuel injection system of marine low-speed diesel engine |
| CN104632485A (en) * | 2014-12-29 | 2015-05-20 | 沪东重机有限公司 | Common-rail fuel oil jet system controlled by double electromagnetic valves and applied to low-speed diesel engine for ship |
| CN205064156U (en) * | 2015-10-29 | 2016-03-02 | 常州机电职业技术学院 | Carbon deposition prevention oil sprayer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804909A (en) * | 2016-05-09 | 2016-07-27 | 常州机电职业技术学院 | Carbon deposition prevention oil sprayer |
| CN106322435A (en) * | 2016-08-26 | 2017-01-11 | 天津成立航空技术有限公司 | Method for eliminating carbon deposition fault of fuel nozzle of aircraft engine |
| CN106322435B (en) * | 2016-08-26 | 2018-12-11 | 天津成立航空技术有限公司 | A method of excluding aero-engine fuel nozzle carbon distribution failure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105221314B (en) | 2017-11-07 |
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