DE102006014770A1 - Fuel injector for internal-combustion engine, has coupler sleeve with two partial sleeves placed axially one behind other, where joint is created between coupler piston and coupler sleeve at head of actuator module - Google Patents
Fuel injector for internal-combustion engine, has coupler sleeve with two partial sleeves placed axially one behind other, where joint is created between coupler piston and coupler sleeve at head of actuator module Download PDFInfo
- Publication number
- DE102006014770A1 DE102006014770A1 DE200610014770 DE102006014770A DE102006014770A1 DE 102006014770 A1 DE102006014770 A1 DE 102006014770A1 DE 200610014770 DE200610014770 DE 200610014770 DE 102006014770 A DE102006014770 A DE 102006014770A DE 102006014770 A1 DE102006014770 A1 DE 102006014770A1
- Authority
- DE
- Germany
- Prior art keywords
- coupler
- sleeve
- piston
- fuel injector
- nozzle needle
- 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.)
- Ceased
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 title claims description 5
- 238000007789 sealing Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
- F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
- F02M2200/707—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with means for avoiding fuel contact with actuators, e.g. isolating actuators by using bellows or diaphragms
Abstract
Description
Stand der TechnikState of technology
Die Erfindung betrifft einen Kraftstoffinjektor für Brennkraftmaschinen nach dem Oberbegriff des Anspruchs 1.The The invention relates to a fuel injector for internal combustion engines the preamble of claim 1.
Ein
Kraftstoffinjektor mit einer direkt betätigbaren Düsennadel und mit einer einstufigen Übersetzung
des Aktorhubs wird in
Aufgabe der vorliegenden Erfindung ist es, einen Kraftstoffinjektor zu schaffen, bei dem die Übertragung von Querkräften auf den Aktormodul weitestgehend verhindert wird.task the present invention is to provide a fuel injector, where the transfer of lateral forces is largely prevented on the actuator module.
Offenbarung der Erfindungepiphany the invention
Die Aufgabe der Erfindung wird mit einem Kraftstoffinjektor mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst. Durch die Verwendung einer mehrteiligen, insbesondere zweiteiligen Kopplerhülse wird am Kopf des Aktormoduls ein Gelenk zwischen Kopplerkolben und Kopplerhülse geschaffen, so dass der Aktormodul von Querkräften entkoppelt ist. Dadurch werden die Anforderungen an die Fertigung und die Montage des Kraftstoffinjektors reduziert, wodurch der Kraftstoffinjektor kostengünstiger herstellbar ist.The The object of the invention is with a fuel injector with the characterizing features of claim 1 solved. By using a multi-part, in particular two-piece coupler sleeve is at the top of the actuator module created a joint between the coupler piston and coupler sleeve, so that the Actuator module of shear forces is decoupled. This makes the demands on the production and reduces the assembly of the fuel injector, causing the fuel injector cost-effective can be produced.
Vorteilhafte Weiterbildungen der Erfindung sind durch die Maßnahmen der Unteransprüche möglich. Eine besonders einfach zu realisierende Dichtung zwischen den beiden Teilen der Kopplerhülse wird durch einen Kugel-Kegel-Verband geschaffen, wobei an den Berührungsflächen die kopplerraumnahe Kopplerhülse eine Kugelform und die kopplerraumferne Kopplerhülse eine Kegelform aufweist. Ein Winkelausgleich wird vorteilhaft dadurch realisiert, indem die kopplerraumnahe Kopplerhülse am Kopplerkolben spielbehaftet geführt ist. Die kopplerraumferne Kopplerhülse ist dagegen hydraulisch dichtend am Kopplerkolben geführt.advantageous Further developments of the invention are possible by the measures of the subclaims. A particularly easy-to-implement seal between the two Split the coupler sleeve is created by a ball-and-cone association, wherein at the contact surfaces the Coupler close to coupler sleeve a spherical shape and the kopplerraumferne coupler sleeve has a conical shape. An angle compensation is advantageously realized by the Coupler sleeve close to the coupler Coupling piston playful guided is. In contrast, the coupler sleeve remote from the coupler chamber is hydraulically sealed guided on the coupler piston.
Ausführungsbeispieleembodiments
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Die Figur zeigt einen Querschnitt durch einen erfindungsgemäßen Kraftstoffinjektor.One embodiment The invention is illustrated in the drawing and in the following description explained in more detail. The FIG. 1 shows a cross section through a fuel injector according to the invention.
Der
dargestellte Kraftstoffinjektor weist ein Gehäuse mit einem Injektorkörper
Die
Düsennadel
Der
Injektorkörper
In
der Drosselplatte
Die
hydraulische Dichtung zwischen der kopplerraumfernen Kopplerhülse
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610014770 DE102006014770A1 (en) | 2006-03-30 | 2006-03-30 | Fuel injector for internal-combustion engine, has coupler sleeve with two partial sleeves placed axially one behind other, where joint is created between coupler piston and coupler sleeve at head of actuator module |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610014770 DE102006014770A1 (en) | 2006-03-30 | 2006-03-30 | Fuel injector for internal-combustion engine, has coupler sleeve with two partial sleeves placed axially one behind other, where joint is created between coupler piston and coupler sleeve at head of actuator module |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006014770A1 true DE102006014770A1 (en) | 2007-10-04 |
Family
ID=38460195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610014770 Ceased DE102006014770A1 (en) | 2006-03-30 | 2006-03-30 | Fuel injector for internal-combustion engine, has coupler sleeve with two partial sleeves placed axially one behind other, where joint is created between coupler piston and coupler sleeve at head of actuator module |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102006014770A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108418465A (en) * | 2018-05-14 | 2018-08-17 | 西安科技大学 | A kind of submicron order precision flexible micro system |
-
2006
- 2006-03-30 DE DE200610014770 patent/DE102006014770A1/en not_active Ceased
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108418465A (en) * | 2018-05-14 | 2018-08-17 | 西安科技大学 | A kind of submicron order precision flexible micro system |
CN108418465B (en) * | 2018-05-14 | 2024-02-27 | 西安科技大学 | Submicron-level precise flexible micro-motion system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed |
Effective date: 20121220 |
|
R016 | Response to examination communication | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |