SU876068A3 - Nozzle - Google Patents

Nozzle Download PDF

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Publication number
SU876068A3
SU876068A3 SU792803644A SU2803644A SU876068A3 SU 876068 A3 SU876068 A3 SU 876068A3 SU 792803644 A SU792803644 A SU 792803644A SU 2803644 A SU2803644 A SU 2803644A SU 876068 A3 SU876068 A3 SU 876068A3
Authority
SU
USSR - Soviet Union
Prior art keywords
nozzle
ratio
pin
fuel
length
Prior art date
Application number
SU792803644A
Other languages
Russian (ru)
Inventor
Дъальфонсо Нунцио
Пикель Ханс
Original Assignee
Машиненфабрик Аугсбург-Нюрнберг Аг (Фирма)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Машиненфабрик Аугсбург-Нюрнберг Аг (Фирма) filed Critical Машиненфабрик Аугсбург-Нюрнберг Аг (Фирма)
Application granted granted Critical
Publication of SU876068A3 publication Critical patent/SU876068A3/en

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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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/06—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves being furnished at seated ends with pintle or plug shaped extensions

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Nozzles (AREA)

Abstract

A needle valve (3) has a pintle (5) penetrating at least part of the length of a nozzle hole (1) when the needle valve (3) is closed, wherein the length (L) of the nozzle hole (1) is smaller than or equal to the diameter (D) of the nozzle hole (7). <IMAGE>

Description

(54) ФОРСУНКА(54) SPRAYER

I . -,I. -,

Изобретение относитс  к двигателестроению .FIELD: engine building.

Известна форсунка дл  впрыска топлива в двигатель внутреннего сгорани  с воспламенением от сжати  и пленоЧ- 5 ным смесеобразованнем, содержаца  распылитель с соплом и запорную иглу со штифтом, размещенным в сопле, этом длина сопла меныве или максимум равна его диаметру, а последний иа- Q ходитс  в пределах между О,8 и t ммГОНедостатком этой форсунки  вл етс  нарушение точности распределени  топлНва в камере сгорани  при малых нагрузках и холостом ходе двигател  |8The known injector for injecting fuel into an internal combustion engine with compression ignition and foam-5th mixture formed, containing a sprayer with a nozzle and a locking needle with a pin placed in the nozzle, this is the length of the nozzle or maximum equal to its diameter in the range between 0, 8 and t mm, the disadvantage of this nozzle is a violation of the accuracy of the distribution of the fuel in the combustion chamber at low loads and idling the engine | 8

Цель нзобретени  - повышение коэффициента полезного действи The purpose of the invention is to increase the efficiency

Указанна  цель достигаетс  тем, что при выполнении соотношени  20 L/D 7/ Е/0 отношение E/D и L/0 соответствуют 0,2-1, при Е/0 « 0,2 отношение L/D соответствует 0,2-0,75, а при отношении L/0 0,75-1 отношение E/D соответствует 0,2-0,25, где, L - 25This goal is achieved by fulfilling the ratio of 20 L / D 7 / E / 0, the ratio E / D and L / 0 correspond to 0.2-1, at E / 0 "0.2, the ratio L / D corresponds to 0.2- 0.75, and with the ratio L / 0 0.75-1, the ratio E / D corresponds to 0.2-0.25, where, L - 25

длина сопла, D - сопла, Е глубина размещени  тифта в сопле.nozzle length, D - nozzles, E is the depth of placement of the tifta in the nozzle.

На фиг. 1 изображена форсунка с глубиной Е размещени  штифта, соответствующей д;ш не L сопла; на фиг.2 форсунка , у которой длина сопла t равна диаметру сопла DJ на фиг. 3 график зависн юстей между отно1вени ми L/D и Е/0,FIG. 1 shows a nozzle with a depth E of a pin position corresponding to g; w not L nozzles; 2 a nozzle, in which the nozzle length t is equal to the diameter of the nozzle DJ in FIG. 3 is a plot of the dependence between the L / D and E / 0 ratios,

Форсунка содержит распьшитепь с соплон 2 и запорную иглу 3 со штифтом 4, прн этом дшна сопла L меньше или максимум равна его диаметру О, а последний находитс  в пределах между 0,8 н I мм. При выполнении со отношений t/0 Tf E/D отнснаени  E/D н L/D соответствует 0,2-1, прн E/D « 0,2 отнотение L/0 соответствует О,2-0,75 а при отношении E/D « 0,75-1 отношеиние E/D соответствует 0,2-0,25.The nozzle contains a pin with nozzle 2 and a locking needle 3 with pin 4, the distance of the nozzle L is less than or maximum equal to its diameter O, and the latter is between 0.8 n I mm. When fulfilling the t / 0 Tf E / D ratios, the E / D ratios and L / D correspond to 0.2–1, the pr / E / D “0.2 otlongation L / 0 corresponds to O, 2–0.75 and, with the ratio E / D “0.75–1 E / D ratio corresponds to 0.2–0.25.

Форсунка работает следующим образом .The nozzle works as follows.

При повьшении давлени  топлива в распылителе 1 запорна  игла 3 со штнфтом 4 поднимаетс  и происходит впрыск топлива в камеру сгорани  двигател  через сопло 2. С падением давлени  топлива игла 3 запирает сопло.2 и подача топлива прекращает&amp; . Расположение штифта А в сопле 2 с сохранением рассмотренных выше соотношений L/D и Е/0 предупреждает коксование топлива .When the fuel pressure in the sprayer 1 increases, the locking needle 3 with pin 4 rises and fuel is injected into the combustion chamber of the engine through nozzle 2. As the fuel pressure drops, needle 3 locks the nozzle 2 and the fuel supply stops &amp; . The location of the pin And in the nozzle 2 with the preservation of the above considered ratios L / D and E / 0 prevents coking of the fuel.

Таким образом, предложенна  конструкци  форсунки обеспечивает повышенне коэффициенту полезного действи Thus, the proposed nozzle design provides increased efficiency

Claims (1)

1. Патент Японии 50-106029, кл. 51 Е 4, 1975.1. Japanese Patent 50-106029, cl. 51 E 4, 1975. 1,one, Фи.г.1Fi.g.1 Фиг.22
SU792803644A 1978-08-17 1979-08-17 Nozzle SU876068A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2836095A DE2836095C2 (en) 1978-08-17 1978-08-17 Fuel injection nozzle for air-compressing internal combustion engines

Publications (1)

Publication Number Publication Date
SU876068A3 true SU876068A3 (en) 1981-10-23

Family

ID=6047303

Family Applications (1)

Application Number Title Priority Date Filing Date
SU792803644A SU876068A3 (en) 1978-08-17 1979-08-17 Nozzle

Country Status (13)

Country Link
JP (2) JPS5569755A (en)
AT (1) AT365745B (en)
CH (1) CH638275A5 (en)
DD (1) DD145782A1 (en)
DE (1) DE2836095C2 (en)
FR (1) FR2433643A1 (en)
GB (1) GB2027806B (en)
HU (1) HU179522B (en)
IN (1) IN151738B (en)
IT (1) IT1122730B (en)
RO (1) RO76428A (en)
SE (1) SE443024B (en)
SU (1) SU876068A3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118485C2 (en) * 1981-05-09 1986-12-04 Daimler-Benz Ag, 7000 Stuttgart Fuel injector for internal combustion engines
DE3735505A1 (en) * 1986-10-20 1988-04-28 Elsbett L Pintle nozzle
US20140060481A1 (en) * 2012-08-29 2014-03-06 GM Global Technology Operations LLC Method and apparatus of producing laminar flow through a fuel injection nozzle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL70310C (en) * 1946-08-28
US2647015A (en) * 1951-03-17 1953-07-28 American Locomotive Co Fuel injector
GB725379A (en) * 1952-06-17 1955-03-02 Bosch Gmbh Robert Improvements in fuel injection nozzles for internal combustion engines
CH313644A (en) * 1952-06-17 1956-04-30 Bosch Gmbh Robert Fuel injector for internal combustion engines
DE1026572B (en) * 1956-11-16 1958-03-20 Friedmann & Maier Ag Injection nozzle for internal combustion engines
JPS5320606B2 (en) * 1971-11-17 1978-06-28

Also Published As

Publication number Publication date
DE2836095A1 (en) 1980-03-27
SE443024B (en) 1986-02-10
FR2433643A1 (en) 1980-03-14
AT365745B (en) 1982-02-10
JPS5569755A (en) 1980-05-26
RO76428A (en) 1981-03-21
ATA555379A (en) 1981-06-15
IT1122730B (en) 1986-04-23
CH638275A5 (en) 1983-09-15
IN151738B (en) 1983-07-16
FR2433643B1 (en) 1984-03-09
GB2027806B (en) 1983-04-27
IT7924984A0 (en) 1979-08-08
DE2836095C2 (en) 1986-04-03
DD145782A1 (en) 1981-01-07
GB2027806A (en) 1980-02-27
HU179522B (en) 1982-10-28
SE7906838L (en) 1980-02-18
JPH01113159U (en) 1989-07-31

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