RU96120162A - FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINES - Google Patents

FUEL INJECTOR FOR INTERNAL COMBUSTION ENGINES

Info

Publication number
RU96120162A
RU96120162A RU96120162/06A RU96120162A RU96120162A RU 96120162 A RU96120162 A RU 96120162A RU 96120162/06 A RU96120162/06 A RU 96120162/06A RU 96120162 A RU96120162 A RU 96120162A RU 96120162 A RU96120162 A RU 96120162A
Authority
RU
Russia
Prior art keywords
nozzle according
atomizer
seat
ledge
central portion
Prior art date
Application number
RU96120162/06A
Other languages
Russian (ru)
Other versions
RU2151905C1 (en
Inventor
Виллке Клеменс
Францке Клаус
Альбродт Хартмут
Белцнер Норберт
Original Assignee
Роберт Бош Гмбх
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
Priority claimed from DE19503269A external-priority patent/DE19503269A1/en
Application filed by Роберт Бош Гмбх filed Critical Роберт Бош Гмбх
Publication of RU96120162A publication Critical patent/RU96120162A/en
Application granted granted Critical
Publication of RU2151905C1 publication Critical patent/RU2151905C1/en

Links

Claims (11)

1. Топливная форсунка для двигателей внутреннего сгорания, содержащая корпус, подвижный затвор, взаимодействующий с поверхностью седла клапана, выполненной в теле седла, и расположенный вниз по потоку за телом седла распылитель, в котором выполнено по меньшей мере одно распыливающее отверстие, отличающаяся тем, что для уменьшения теплоперехода между телом (16) седла и распылителем (21) предусмотрен по меньшей мере один переходный элемент (18, 39, 41).1. A fuel injector for internal combustion engines, comprising a housing, a movable shutter cooperating with a surface of a valve seat made in the body of the seat, and an atomizer located downstream of the seat body in which at least one spray opening is made, characterized in that at least one adapter element (18, 39, 41) is provided to reduce heat transfer between the seat body (16) and the atomizer (21). 2. Форсунка по п.1, отличающаяся тем, что по меньшей мере один переходный элемент выполнен в виде возвышающегося уступа (18) на теле (16) седла клапана. 2. The nozzle according to claim 1, characterized in that at least one transition element is made in the form of a rising ledge (18) on the body (16) of the valve seat. 3. Форсунка по п.1, отличающаяся тем, что по меньшей мере один переходный элемент выполнен в виде возвышающегося уступа (39) на распылителе (21). 3. The nozzle according to claim 1, characterized in that at least one transition element is made in the form of a rising ledge (39) on the sprayer (21). 4. Форсунка по п.3, отличающаяся тем, что распылитель (21) имеет обращенную к телу (16) седла верхнюю торцовую сторону (19), на центральном участке (24) которой выполнено по меньшей мере одно распыливающее отверстие (25), а для образования идущего от периферии уступа (39) распылителя (21) - углубленную относительно верхней торцовой стороны (19) ступеньку (52), охватывающую центральный участок (24) большего диаметра. 4. Nozzle according to claim 3, characterized in that the atomizer (21) has an upper end face (19) facing the body (16) of the saddle, in the central portion (24) of which at least one spray opening (25) is made, and for the formation of a nozzle (21) coming from the periphery of the step (39), a step (52) deepened relative to the upper end face (19), covering the central portion (24) of a larger diameter. 5. Форсунка по п.3, отличающаяся тем, что распылитель (21) имеет обращенную к телу (16) седла верхнюю торцовую сторону (19), на центральном участке (24) которой выполнено по меньшей мере одно распыливающее отверстие (25), а для образования идущего от периферии уступа (39) распылителя (21) - углубленную относительно верхней торцовой стороны (19) вогнутость (53), охватывающую центральный участок (24) большего диаметра. 5. Nozzle according to claim 3, characterized in that the atomizer (21) has an upper end face (19) facing the body (16) of the saddle, in the central portion (24) of which at least one spray opening (25) is made, and for the formation of a nozzle (21) coming from the periphery of the step (39), a concavity (53) deepened relative to the upper end face (19), covering the central portion (24) of a larger diameter. 6. Форсунка по п. 2, отличающаяся тем, что уступ (18) тела (16) седла выполнен в форме кругового кольца. 6. The nozzle according to claim 2, characterized in that the step (18) of the seat body (16) is made in the form of a circular ring. 7. Форсунка по пп.3 - 5, отличающаяся тем, что уступ (39) распылителя (21) выполнен в форме кругового кольца. 7. The nozzle according to claims 3 to 5, characterized in that the step (39) of the atomizer (21) is made in the form of a circular ring. 8. Форсунка по п.2, отличающаяся тем, что распылитель (21) прилегает к уступу (18) тела (16) седла и соединен с ним. 8. The nozzle according to claim 2, characterized in that the atomizer (21) is adjacent to the ledge (18) of the body (16) of the saddle and is connected to it. 9. Форсунка по пп.3 - 5, отличающаяся тем, что распылитель (21) прилегает своим уступом (39) к телу (16) седла и соединен с ним в месте прилегания. 9. The nozzle according to claims 3 to 5, characterized in that the atomizer (21) is adjacent with its ledge (39) to the body (16) of the seat and connected to it in the place of contact. 10. Форсунка по п.1, отличающаяся тем, что по меньшей мере один переходный элемент выполнен в виде отдельного теплоизолятора (41) и расположен между телом (16) седла и распылителем (21). 10. The nozzle according to claim 1, characterized in that at least one transition element is made in the form of a separate heat insulator (41) and is located between the body (16) of the seat and the atomizer (21). 11. Форсунка по п.10, отличающаяся тем, что изолятор (41) выполнен из пластмассы, керамики или стекла. 11. Nozzle according to claim 10, characterized in that the insulator (41) is made of plastic, ceramic or glass.
RU96120162/06A 1995-02-02 1996-01-17 Fuel nozzle for internal combustion engines RU2151905C1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19503269.1 1995-02-02
DE19503269A DE19503269A1 (en) 1995-02-02 1995-02-02 Fuel injection valve for internal combustion engines

Publications (2)

Publication Number Publication Date
RU96120162A true RU96120162A (en) 1998-12-10
RU2151905C1 RU2151905C1 (en) 2000-06-27

Family

ID=7752928

Family Applications (1)

Application Number Title Priority Date Filing Date
RU96120162/06A RU2151905C1 (en) 1995-02-02 1996-01-17 Fuel nozzle for internal combustion engines

Country Status (10)

Country Link
US (1) US5862991A (en)
EP (1) EP0774069B1 (en)
JP (1) JP3625838B2 (en)
KR (1) KR100441813B1 (en)
CN (1) CN1062335C (en)
BR (1) BR9605297A (en)
DE (2) DE19503269A1 (en)
ES (1) ES2164862T3 (en)
RU (1) RU2151905C1 (en)
WO (1) WO1996023968A1 (en)

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