SU652338A1 - Method of cleaning nozzle atomizer - Google Patents
Method of cleaning nozzle atomizerInfo
- Publication number
- SU652338A1 SU652338A1 SU772529286A SU2529286A SU652338A1 SU 652338 A1 SU652338 A1 SU 652338A1 SU 772529286 A SU772529286 A SU 772529286A SU 2529286 A SU2529286 A SU 2529286A SU 652338 A1 SU652338 A1 SU 652338A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- fuel
- engine
- emulsion
- water
- cleaning nozzle
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/04—Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/007—Cleaning
- F02M65/008—Cleaning of injectors only
Description
(54) СПОСОБ ОЧИСТКИ РАСПЫЛИТЕЛЯ ФОРСУНКИ(54) METHOD OF CLEANING SPRAYER SPRAYER
II
Изобретение относитс к области машиностроени и, в частности к двигател м внутреннего сгорани , и может быть использовано при эксплуатации двигател дл очистки распылител форсунки от Harapia в сопловых каналах .The invention relates to the field of mechanical engineering and, in particular, to internal combustion engines, and can be used in the operation of an engine for cleaning a spray nozzle from Harapia in nozzle channels.
Известны способы очистки распылител , форсунки от нагара в сопловых каналах при работе двигател на топливовод ной эмульсии 1.Methods are known for cleaning the sprayer, nozzles from carbon in the nozzle channels when the engine is running on the fuel emulsion 1.
Однако организаци работы двигател в течение всего периода эксплуатации на топливовод ной эмульсии не представл етс возможной из-за технической сложнобти приготовлени эмульсии и возможного снижени надежности работы топливоподающей аппаратуры .However, the organization of the engine operation during the entire period of operation on the fuel emulsion is not possible due to the technical difficulty of preparing the emulsion and the possible decrease in the reliability of the fuel injection equipment.
Целью изобретени вл етс сокращение трудоемкости очистки распылител форсунки от нагара в сопловых каналах при работе двигател на топливовод ной эмульсии.The aim of the invention is to reduce the laboriousness of cleaning the spray nozzle from carbon in the nozzle channels when the engine is running on the fuel emulsion.
С этой целью работу двигател на топливовод ной эмульсии осуществл ют в течение 3-5 минут при циклически измен ющихс со скоростью один цикл в минуту бестррмозных режимах путем разгона двигател до максимальных- обTo this end, the engine is operated on a fuel / water emulsion for 3-5 minutes at cyclically varying speeds of one cycle per minute by engine-free modes by accelerating the engine to maximum
ротов и последующего сброса оборотов до 800-900 об/мин.Rots and the subsequent dump of turns to 800-900 rpm.
В период технического ухода за двигателем , а также в св зи с закоксовыванием распылител форсунки работу двигател осуществл ют в течение 3- 5 минут при циклически измен ющихс бестормоэных. режимах на топливовод ной эмульсии, предварительно приготовленной , например из 90-95% дизельного топлива и 10-15% воды. Дл этого топливна система двигател подк.гпочаетс к отдельной емкости с топливовод ной эмульсией..During the maintenance of the engine, as well as in connection with the coking of the nozzle sprayer, the engine is operated for 3 to 5 minutes with cyclically changing bestormoes. modes on a fuel-water emulsion previously prepared, for example, from 90-95% diesel fuel and 10-15% water. For this purpose, the fuel system of the engine is suitable for a separate tank with a fuel emulsion.
При впрыске топливовод ной эмульсии в цилиндр двигател давление в распылителе форсунки в начале подъема иглы составл ет 13-15 МПа и температура эмульсии 180-200 с, т.е. на 120-130°С ниже температуры кипени воды при данном давлении. В процессе истечени топливовод ной эмульсии ее давление падает. В результате снижени давлени от начального 13-15 МПа до давлени , в камере сгорани 4-$ МПа а также в результате подвода тепла от цилиндровых газов двигател к распылителю происходит испарение воды (диаметр капелек воды меньше 5 мкм), содержащейс в тоштавоводйной эмульсии.When the fuel-water emulsion is injected into the engine cylinder, the pressure in the injector nozzle at the beginning of the needle lift is 13–15 MPa and the emulsion temperature is 180–200 s, i.e. 120-130 ° C below the boiling point of water at a given pressure. During the outflow of the fuel / water emulsion, its pressure drops. As a result of a decrease in pressure from an initial 13–15 MPa to a pressure of 4– MPa in the combustion chamber and also as a result of heat supply from the cylinder gases of the engine to the atomizer, water evaporates (the diameter of water droplets is less than 5 µm) contained in the flow emulsion.
(Коэффициент теплопроводности воды составл ет 0,37-10 ккал/м.с,°С, в то врем теплопроводность топлива 0 ,23-10Г ккал/м.;С.С дл условий р«10 Ша и TlSO C) . Учитыва , что в топливоводйной эмульсии капельки воды распределены равномерно, мгновенное их испарение выэьшает повышение давлени . Это вл етс причиной пароструйной.эрозии коксовых отложений в сопловых каналах распылител . Циклические набросы и сбросы оОоротов Двигател в бестормозных неустановившихс режимах интенсифицирует пароструйную эрозию коксовых отложений за счет повышени частоты изменени и величины перепадов давлений при зпраске топливовод ной эмульсии в цилиндр двигател . Топливовод ную эмульсию приготовл ют известными способами , например с помощью ультразвукового смешивани дизельного топлива и во;Ф1.(The coefficient of thermal conductivity of water is 0.37–10 kcal / msec, ° C, while the thermal conductivity of fuel is 0, 23–10 G kcal / m; C for conditions p ≤ 10 Sha and TlSO C). Considering that water droplets are evenly distributed in the fuel supply emulsion, their instantaneous evaporation results in an increase in pressure. This is the cause of steam erosion of coke deposits in the nozzle channels of the nebulizer. Cyclic sweeps and discharges of the engine in non-brake unsteady modes intensifies the steam-jet erosion of coke deposits by increasing the frequency of change and magnitude of pressure drops during reproducing a fuel-water emulsion into the engine cylinder. Fuel emulsion is prepared by known methods, for example, by ultrasonic mixing of diesel and in; F1.
Реализаци .способа значительно сокращает трудоемкость очистки, такThe implementation of the method significantly reduces the laboriousness of cleaning, so
как врем полной очистки сокращаетс до 3-5 мин.as a thorough cleaning time is reduced to 3-5 minutes.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772529286A SU652338A1 (en) | 1977-09-26 | 1977-09-26 | Method of cleaning nozzle atomizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772529286A SU652338A1 (en) | 1977-09-26 | 1977-09-26 | Method of cleaning nozzle atomizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU652338A1 true SU652338A1 (en) | 1979-03-15 |
Family
ID=20726971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772529286A SU652338A1 (en) | 1977-09-26 | 1977-09-26 | Method of cleaning nozzle atomizer |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU652338A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4520773A (en) * | 1982-03-18 | 1985-06-04 | Miller Special Tools Division Triangle Corporation | Fuel injection cleaning and testing system and apparatus |
| US4671230A (en) * | 1983-09-19 | 1987-06-09 | Turnipseed Marion R | Method and means for cleaning fuel injection engines |
| US4909207A (en) * | 1981-07-03 | 1990-03-20 | Nissan Motor Company, Limited | Cleaning system for fuel injectors |
-
1977
- 1977-09-26 SU SU772529286A patent/SU652338A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4909207A (en) * | 1981-07-03 | 1990-03-20 | Nissan Motor Company, Limited | Cleaning system for fuel injectors |
| US4520773A (en) * | 1982-03-18 | 1985-06-04 | Miller Special Tools Division Triangle Corporation | Fuel injection cleaning and testing system and apparatus |
| US4671230A (en) * | 1983-09-19 | 1987-06-09 | Turnipseed Marion R | Method and means for cleaning fuel injection engines |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SU1269745A3 (en) | Method for operation of compression ignition internal combustion engine and compression ignition engine | |
| SU652338A1 (en) | Method of cleaning nozzle atomizer | |
| SE8206256D0 (en) | AIR COMPRESSOR, DIRECT INJECTION COMBUSTION ENGINE | |
| Meurer | Evaluation of reaction kinetics eliminates diesel knock—the M-combustion system of MAN | |
| JPH02501398A (en) | Fuel injection for direct injection diesel engines with multiple nozzles | |
| Karim et al. | The examination of the combustion processes in a compression-ignition engine by changing the partial pressure of oxygen in the intake charge | |
| US2777430A (en) | Method for injecting water into the combustion chamber of high speed diesel engines | |
| US4997455A (en) | Diesel fuel injector cleaning additive | |
| US4278057A (en) | Method of burning applied-ignition fuels in an air-compressing direct-injection internal combustion engine | |
| US2858811A (en) | Fuel injection | |
| US6907856B2 (en) | Internal combustion engine with spark ignition and direct fuel injection comprising a very high-pressure direct injection system | |
| US1709744A (en) | Atomizing oil | |
| KR880001683B1 (en) | Internal combustion engine of hydrogen gas | |
| JPS557966A (en) | Liquid fuel injection method for combustor | |
| DE19500184A1 (en) | Fuel injection unit with hot fuel evaporation for piston engines | |
| Kochev et al. | Improving the technical and environmental performance of piston engines by upgrading the fuel system | |
| SU1015101A1 (en) | I.c. engine fuel injection nozzle injector | |
| SU1150389A1 (en) | Method of removing carbon deposit from surfaces of diesel engine parts | |
| RU2105170C1 (en) | Noncooled internal combustion engine | |
| SU370359A1 (en) | METHOD OF FEEDING FUEL | |
| US2557020A (en) | Use of sulfur in the suppression of carburizing in gas turbine and jet propulsion engines | |
| US3179091A (en) | Internal combustion engine | |
| SU648745A1 (en) | Method of operation of compression ignition engine | |
| GB642431A (en) | Method and device for the production of vaporized fuel | |
| SU64512A1 (en) | The method of operation of the power plant consisting of an internal combustion engine and a gas turbine |