EP1264102B1 - Kapsel für ein einspritzsystem - Google Patents
Kapsel für ein einspritzsystem Download PDFInfo
- Publication number
- EP1264102B1 EP1264102B1 EP01915244A EP01915244A EP1264102B1 EP 1264102 B1 EP1264102 B1 EP 1264102B1 EP 01915244 A EP01915244 A EP 01915244A EP 01915244 A EP01915244 A EP 01915244A EP 1264102 B1 EP1264102 B1 EP 1264102B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel injection
- fuel
- injection system
- capsule
- internal combustion
- 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.)
- Expired - Lifetime
Links
Images
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
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
- F02M61/145—Arrangements of injectors with respect to engines; Mounting of injectors the injection nozzle opening into the air intake conduit
-
- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
Definitions
- the invention relates to an injection system according to the preamble of the claim 1 mentioned type.
- the invention is based on US 4,046,128.
- a cylinder head for one Internal combustion engine in particular a working on the diesel principle internal combustion engine, described.
- the Brennstotfeinspritzkomponenten are of a Protective cover covered and with oil-tight seals against the. Surroundings sealed. The aim of this arrangement is to inject the injection components against To protect lubricating oil in the cylinder head.
- Hydrocarbons are currently the main component of fuel for internal combustion engines.
- Fuel injection systems produce HC emissions Leakage at joints and diffusion of fuel components by plastics and elastomers such as fuel hoses and Seals through.
- a disadvantage is a fuel injection system, as in DE 40 02 393 described that when repairs solved and restored connections must be and thereby, even when using new sealing elements and Hoses, an increase in HC emission is possible.
- Task is to represent a fuel injection system, which for the term the internal combustion engine consistently low HC emissions of the engine near Guaranteed components and easy to produce.
- the fuel-carrying, engine-related components of a fuel injection system today consist of one or more fuel rail with fuel inlet and fuel return, at least one injector and at least one fuel pressure regulator and its mounting and Sealing elements together.
- HC emissions from openings in the capsule that make up components of the fuel injection system are led out are prevented by claim 5. These Junctions are for leaks due to, for example, mechanical Vibrations or thermal stresses particularly vulnerable.
- sealing materials For example, known and commercially available materials such as silicone rubber or polyurethane rubber used.
- Suction system and Housings are made of the same material in just one operation, for example by injection molding. This solution is characterized by special Economy out.
- Fig. 1 shows the today usually used for an internal combustion engine Internal combustion engine components of a fuel injection system. These consist of a fuel rail 1, with a fuel inlet 2 and a Fuel outlet 3, a fuel pressure regulator 4 and four fuel injection valves 5, 5 '. Each fuel injection valve 5, 5 'is provided with a fastener 6, 6 'attached to the fuel rail 1. The electrical control takes place via an electrical supply line 7. In the vicinity of the fuel outlet nozzle 8, 8 'is used a sealing element 9, 9 'in addition to the mechanical fastening of the system.
- Fig. 2 which is a sectional view through an enclosed combustion engine close Fuel injection system shows, the reference numerals of Fig. 1. apply the Fuel rail 1 is connected to the fuel injection valve 5 in a suction channel 10 installed an internal combustion engine, not shown here.
- the fuel injector 5 is with the fastener 6 in the fuel rail 1 and pressed with the sealing element 9 in a bore 11 of the suction channel 10.
- the electrical supply line 7 is connected to the fuel injection valve 5 by a non-visible detachable connection connected.
- a capsule 12 encloses the components of the fuel injection system close to the engine, also the unrecognizable here, such as fuel intake, fuel flow and fuel pressure regulator.
- the capsule 12 is essentially made of the Suction channel 10, a housing 13 and a lid 14 is formed.
- the housing 13 is made in one piece with the suction channel 10.
- Between housing 13 and cover 14 is a circumferential sealing plane with seal 15.
- the connection of housing 13 and cover 14 is detachable, so anytime a repair to the engine near Components of the fuel injection system are performed can.
- the interior is connected by a hollow section 16 with the suction channel 10.
- the Capsule 12 and all seals are diffusion-tight for hydrocarbons.
- Another embodiment variant is the capsule 12 and the necessary To attach seals to a cylinder head, even at cylindemaher Injection or direct injection into the combustion chamber, the HC emissions minimize.
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
- Fig. 1:
- brennkraftmaschinennahe Komponenten eines Kraftstoffeinspritzsystems;
- Fig. 2:
- Schnittzeichnung eines gekapselten Kraftstoffeinspritzsystems.
- 1
- Kraftstoffverteilerkanal
- 2
- Kraftstoffzulauf
- 3
- Kraftstoffablauf
- 4
- Kraftstoffdruckregler
- 5, 5'
- Kraftstoffeinspritzventil
- 6, 6'
- Befestigungselement
- 7
- Elektrische Zuleitung
- 8, 8'
- Kraftstoffaustrittsdüse
- 9, 9'
- Dichtelement
- 10
- Saugkanal
- 11
- Bohrung
- 12
- Kapsel
- 13
- Gehäuse
- 14
- Deckel
- 15
- Dichtebene mit Dichtung
- 16
- Hohlprofil
Claims (6)
- Kraftstoffeinspritzsystem für eine Brennkraftmaschine mit einem Kraftstoffverteilerkanal (1), der über einen Kraftstoffzulauf (2) und Kraftstoffablauf (3) verfügt und an dem mindestens ein Kraftstoffeinspritzventil (5, 5') angeordnet ist, wobei alle brennkraftmaschinennahen Komponenten des Kraftstoffeinspritzsystems in einer für Kohlenwasserstoff diffusionsdichten Kapsel (12) angeordnet sind,
dadurch gekennzeichnet, dass der Innenraum der Kapsel (12) über mindestens ein, für Kohlenwasserstoffe diffusionsdichtes Hohlprofil (16), mit mindestens einem Saugkanal (10) der Brennkraftmaschine verbunden ist. - Kraftstoffeinspritzsystem nach Anspruch 1,
dadurch gekennzeichnet, dass die Kapsel (12) aus einem Gehäuse (13) und einem Deckel (14) zusammengesetzt ist. - Kraftstoffeinspritzsystem nach einem zuvor genannten Ansprüche,
dadurch gekennzeichnet, dass das Gehäuse (13) mit dem Deckel (14) über eine lösbare, für Kohlenwasserstoffe diffusionsdichte Verbindung, verschlossen ist. - Kraftstoffeinspritzsystem nach einem der zuvor genannten Ansprüche,
dadurch gekennzeichnet, dass das Gehäuse (13) und der Deckel (14), gegenüber allen, aus ihnen herausgeführten Komponenten, für Kohlenwasserstoffe diffusionsdicht abgedichtet ist. - Kraftstoffeinspritzsystem nach einem der zuvor genannten Ansprüche,
dadurch gekennzeichnet, dass das Gehäuse (13) einstückig mit einer Sauganlage für eine Brennkraftmaschine ist. - Kraftstoffeinspritzsystem nach einem der zuvor genannten Ansprüche,
dadurch gekennzeichnet, dass das Gehäuse (13) an einen Zylinderkopf einer Brennkraftmaschine, für Kohlenwasserstoffe diffusionsdicht, anordbar ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10012834A DE10012834A1 (de) | 2000-03-16 | 2000-03-16 | Kapsel für ein Einspritzsystem |
DE10012834 | 2000-03-16 | ||
PCT/EP2001/001616 WO2001069077A1 (de) | 2000-03-16 | 2001-02-14 | Kapsel für ein einspritzsystem |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1264102A1 EP1264102A1 (de) | 2002-12-11 |
EP1264102B1 true EP1264102B1 (de) | 2005-12-21 |
Family
ID=7634962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01915244A Expired - Lifetime EP1264102B1 (de) | 2000-03-16 | 2001-02-14 | Kapsel für ein einspritzsystem |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1264102B1 (de) |
DE (2) | DE10012834A1 (de) |
WO (1) | WO2001069077A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006035296B4 (de) * | 2006-07-31 | 2009-02-19 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren und Vorrichtung zum Prüfen der Dichtheit der Komponenten eines Kraftstoffeinspritzsystems |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1024700B (it) * | 1974-10-28 | 1978-07-20 | Fiat Spa | Perfezionamenti nella testa cilindri per motori a combustione inter na del tipo a ciclo diesel |
JPS61226555A (ja) * | 1985-03-29 | 1986-10-08 | Hitachi Ltd | 燃料霧化装置付燃料噴射供給装置 |
DE4002393A1 (de) | 1990-01-27 | 1991-08-01 | Bosch Gmbh Robert | Kraftstoffeinspritzsystem fuer brennkraftmaschinen |
DE4329774A1 (de) * | 1993-09-03 | 1995-03-09 | Bosch Gmbh Robert | Vorrichtung zur Befestigung und Sicherung eines Ventils |
US5353767A (en) * | 1993-12-17 | 1994-10-11 | General Motors Corporation | Fuel and air induction system |
-
2000
- 2000-03-16 DE DE10012834A patent/DE10012834A1/de not_active Ceased
-
2001
- 2001-02-14 DE DE50108461T patent/DE50108461D1/de not_active Expired - Fee Related
- 2001-02-14 WO PCT/EP2001/001616 patent/WO2001069077A1/de active IP Right Grant
- 2001-02-14 EP EP01915244A patent/EP1264102B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO2001069077A1 (de) | 2001-09-20 |
DE50108461D1 (de) | 2006-01-26 |
DE10012834A1 (de) | 2001-09-27 |
EP1264102A1 (de) | 2002-12-11 |
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