SU462351A3 - Device for supplying fuel to an internal combustion engine - Google Patents
Device for supplying fuel to an internal combustion engineInfo
- Publication number
- SU462351A3 SU462351A3 SU1717565A SU1717565A SU462351A3 SU 462351 A3 SU462351 A3 SU 462351A3 SU 1717565 A SU1717565 A SU 1717565A SU 1717565 A SU1717565 A SU 1717565A SU 462351 A3 SU462351 A3 SU 462351A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- heating element
- fuel
- internal combustion
- combustion engine
- control unit
- Prior art date
Links
Classifications
-
- 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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/125—Fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
- F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
(54) УСТРОЙСТВО ДЛЯ ПОДАЧИ ТОПЛИВА В ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ(54) DEVICE FOR FUELING FUEL IN INTERNAL COMBUSTION ENGINE
впускном трубопроводе 3. Датчик 19 управл ет также дозатором 5.the inlet pipe 3. The sensor 19 also controls the dispenser 5.
Устройство работает следующим образом.The device works as follows.
При подключении к источнику питани нагревательного элемента 8 последний нагревает топливо, наход щеес в камере форсунки 1, до температуры, обеспечивающей его испарение при впрыске в патрубок 2. Одновременно дл хорощего распылени топлива давление впрыска выбираетс таким, чтобы при впрыске в самом узком сечении сопла форсунки 1 скорость паров топлива достигала скорости звука, что возможно только при сверхкритических перепадах давлени . Максимальна температура нагрева топлива должна быть такой, чтобы не произощло самовоспламенение паров в патрубке 2. Дл лучщей работы элемента 8 необходимо, чтобы он имел малый вес и большую поверхность теплоотдачи. Дл этого нагревательный элемент может быть выполнен из пористого материала , из капилл рных трубочек или в виде узких пластин. Количество тока, подаваемого к элементу 8, регулируетс управл ющим блоком 9, который получает сигналы от датчиков 11 -14. Одновременно блок 9 получает сигнал от выключател 18, который предотвращает чрезмерный перегрев топлива в форсунке 1 и неуправл емую подачу при неработающем двигателе 14 вследствие отсутстви расхода топлива через форсунку 1. При этом блок 9 должен обеспечивать подогрев топлива в форсунке 1 перед включением стартера . Электронагревательные элементы 8 могут быть выполнены в виде терморезисторов с релейной характеристикой, которые имеют резкий скачок сопротивлени при превышении заданной температуры и, следовательно, уменьщенную теплоотдачу. При таком выполнении элементов 8 датчик 10 температуры не требуетс .When connected to the power source of the heating element 8, the latter heats the fuel in the chamber of the injector 1 to a temperature that ensures its evaporation when injected into the nozzle 2. At the same time, for good spraying of fuel, the injection pressure is chosen so that when it is injected in the narrowest section of the nozzle 1, the rate of fuel vapor reached the speed of sound, which is possible only with supercritical pressure drops. The maximum heating temperature of the fuel must be such that the vapor in the nozzle 2 does not self-ignite. In order for element 8 to work better, it is necessary that it have a low weight and a large heat transfer surface. For this, the heating element may be made of a porous material, of capillary tubes or in the form of narrow plates. The amount of current supplied to element 8 is controlled by a control unit 9, which receives signals from sensors 11-14. At the same time, block 9 receives a signal from switch 18, which prevents excessive overheating of fuel in injector 1 and uncontrolled flow when engine 14 is not operating due to the absence of fuel consumption through injector 1. At the same time, unit 9 must provide heating of fuel in injector 1 before starting the starter. Electric heating elements 8 can be made in the form of thermistors with a relay characteristic, which have a sharp jump of resistance when the temperature exceeds a predetermined temperature and, consequently, decreases heat transfer. With this arrangement of the elements 8, the temperature sensor 10 is not required.
При переохлаждении двигател , возникающем при пуске и в процессе работы, нагревательные элементы 8 обеспечивают подачу топлива в виде паров, в результате чего повыщаетс эффективность работы как устройства в целом (не происходит осаждени жидкого топлива на стенках патрубка 2), так и двигател вследствие улучшени процесса сгорани топлива в цилиндрах.When the engine overcooling occurs during start-up and during operation, the heating elements 8 provide fuel supply in the form of vapors, as a result of which the efficiency of the device as a whole (no deposition of liquid fuel on the walls of the nozzle 2) and the engine improves as a result burn fuel in cylinders.
Предмет изобретени Subject invention
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2057972A DE2057972C3 (en) | 1970-11-25 | 1970-11-25 | Cold start fuel injection device designed for spark ignition internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
SU462351A3 true SU462351A3 (en) | 1975-02-28 |
Family
ID=5789085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1717565A SU462351A3 (en) | 1970-11-25 | 1971-11-24 | Device for supplying fuel to an internal combustion engine |
Country Status (3)
Country | Link |
---|---|
IT (1) | IT941283B (en) |
SE (1) | SE370762B (en) |
SU (1) | SU462351A3 (en) |
-
1971
- 1971-11-24 SU SU1717565A patent/SU462351A3/en active
- 1971-11-24 SE SE7115062A patent/SE370762B/xx unknown
- 1971-11-24 IT IT31553/71A patent/IT941283B/en active
Also Published As
Publication number | Publication date |
---|---|
IT941283B (en) | 1973-03-01 |
SE370762B (en) | 1974-10-28 |
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