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CH686635A5 - Injection nozzle for directing fuel into combustion unit - Google Patents

Injection nozzle for directing fuel into combustion unit Download PDF

Info

Publication number
CH686635A5
CH686635A5 CH217994A CH217994A CH686635A5 CH 686635 A5 CH686635 A5 CH 686635A5 CH 217994 A CH217994 A CH 217994A CH 217994 A CH217994 A CH 217994A CH 686635 A5 CH686635 A5 CH 686635A5
Authority
CH
Switzerland
Prior art keywords
injection nozzle
injection
combustion unit
directing fuel
protection
Prior art date
Application number
CH217994A
Other languages
German (de)
Inventor
Heribert Otto Geisser
Original Assignee
Heribert Otto Geisser
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 Heribert Otto Geisser filed Critical Heribert Otto Geisser
Priority to CH217994A priority Critical patent/CH686635A5/en
Publication of CH686635A5 publication Critical patent/CH686635A5/en

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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F02M61/182—Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
    • 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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for

Landscapes

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

Abstract

The nozzle is load dependent and variable controllable and is not protected in the insert stationary injection opening (8) against the combustion atmosphere. Protection is provided by charging the movable injection opening (1). Protection can also be given by a movement of the closing part (9).

Description

1 1

CH 686 635 A5 CH 686 635 A5

2 2nd

Beschreibung description

Die Erfindung geht von einer Einspritzdüse aus, wie sie zur Einleitung von Kraftstoff in den verschiedensten Verbrennungsaggregaten verwendet wird. Die Düse ist normalerweise derart angeordnet, dass sie über die Düsenspitze mit den Spritzöffnungen in den Verbrennungsraum ragt, oder zumindest mit der Brennraumatmosphäre in Berührung kommt. Werden z.B. mehrere Düsen in den selben Verbrennungsraum eingeführt, so zeichnet sich bei denjenigen Düsen, die temporär nicht im Einsatz stehen, eine starke Verschmutzung, eine Verkokung und schliesslich der Verschluss der Düsenspritzöff-nungen ab. The invention is based on an injection nozzle as it is used to introduce fuel into a wide variety of combustion units. The nozzle is normally arranged in such a way that it projects over the nozzle tip with the spray openings into the combustion chamber, or at least comes into contact with the combustion chamber atmosphere. E.g. If several nozzles are introduced into the same combustion chamber, then those nozzles that are temporarily not in use show heavy soiling, coking and finally the closure of the nozzle spray openings.

Es ist auch hinlänglich bekannt, dass bei unterschiedlichem Durchfluss durch die Spritzöffnungen einer Düse, die schlecht bedienten Spritzöffnungen sukzessive verkoken, was zu unterschiedlicher, variierender Einspritzmenge und damit unstabilem Betriebsverhalten führt. Generell kann gesagt werden, dass Spritzvorgänge nicht zum Einsatz kommen. It is also well known that when the flow through the spray openings of a nozzle is different, the poorly operated spray openings successively coke, which leads to different, varying injection quantities and thus unstable operating behavior. In general it can be said that spraying processes are not used.

Der Effekt der Verkokung und die Gefahr des völligen Verschlusses sind nun insbesondere dort festzustellen, wo man eine Düse im Mehrlaststufen-bereich einsetzen will, d.h. wo einzelne Spritzöffnungen nicht und andere voll zum Einsatz kommen sollen. Dieser Effekt der Mehrlaststufeneinspritzung wird im Sinne der lastabhängigen Einspritzung, der Flexibilität der Systeme und deren Anpassungsfähigkeit an unterschiedliche Leistungen immer mehr vorgesehen. Teillast-A/ollast-Düsen sind gefragt. Da die verschiedenen Spritzöffnungen bei unterschiedlichen Lastbereichen unterschiedlich zum Einsatz kommen und die nicht benützten Spritzöffnungen nach wie vor in den Brennraum hinausragen und durch die Brennraumatmosphäre beaufschlagt sind, entsteht bei allen nicht benützten Spritzöffnungen die Verkokung. The effect of coking and the danger of complete closure can now be determined particularly where you want to use a nozzle in the multi-load range, i.e. where individual spray openings should not and others should be fully used. This effect of multi-load stage injection is increasingly provided in the sense of load-dependent injection, the flexibility of the systems and their adaptability to different outputs. Partial load / full load nozzles are in demand. Since the different spray openings are used differently for different load ranges and the unused spray openings still protrude into the combustion chamber and are exposed to the combustion chamber atmosphere, coking occurs in all unused spray openings.

Dieses Phänomen ist mit ein Grund dafür, dass flexible Einspritzsysteme respektive -Düsen oder Mehrstufendüsen bisher nicht zum Einsatz gelangt sind. Es hat sich auch gezeigt, dass eigens konstruierte Speziallösungen zur temporären Abdek-kung nicht im Einsatz befindlicher Spritzöffnungen nicht in allen Fällen zu brauchbaren Lösungen geführt haben. Vereinzelte Patentanmeldungen in diesem Bereich liegen vor. This phenomenon is one of the reasons why flexible injection systems or nozzles or multi-stage nozzles have not been used to date. It has also been shown that specially designed special solutions for the temporary covering of spray openings not in use have not always led to usable solutions. There are isolated patent applications in this area.

Mit dem vorliegenden Patent soll zweierlei erreicht werden. Einerseits soll eine neue Lösung der stufenweisen, resp. der flexiblen Einspritzung zur Darstellung gebracht werden und zum anderen soll diese Lösung dahingehend geschützt werden, dass eine Verkokung der nicht im Betrieb befindlichen Spritzöffnungen vermieden wird. Two things are to be achieved with this patent. On the one hand, a new solution of the gradual, respectively. the flexible injection is to be shown and on the other hand this solution is to be protected in such a way that coking of the spray openings which are not in operation is avoided.

Claims (3)

PatentansprücheClaims 1. Lastabhängig, variabel steuerbare Einspritzdüse, bei welcher die nicht im Einsatz stehenden Einspritzöffnungen gegen die Verbrennungsraumatmosphäre geschützt werden.1. Load-dependent, variably controllable injection nozzle, in which the injection openings that are not in use are protected against the combustion chamber atmosphere. 2. Einspritzdüse nach Patentanspruch 1, bei der der Schutz der nicht im Einsatz stehenden Einspritzöffnungen (8) durch Einfahren der beweglichen Einspritzöffnungen (1) erfolgt.2. Injection nozzle according to claim 1, in which the protection of the injection openings (8) not in use is carried out by retracting the movable injection openings (1). 3. Einspritzdüse nach Patentanspruch 1, bei der der Schutz der nicht im Einsatz stehenden Einspritzöffnungen (8) durch einen beweglichen Verschlussteil (9) erfolgt.3. Injection nozzle according to claim 1, in which the protection of the injection openings (8) not in use is provided by a movable closure part (9). 55 1010th 1515 2020th 2525th 3030th 3535 4040 4545 5050 5555 6060 6565 22nd
CH217994A 1994-07-08 1994-07-08 Injection nozzle for directing fuel into combustion unit CH686635A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH217994A CH686635A5 (en) 1994-07-08 1994-07-08 Injection nozzle for directing fuel into combustion unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH217994A CH686635A5 (en) 1994-07-08 1994-07-08 Injection nozzle for directing fuel into combustion unit

Publications (1)

Publication Number Publication Date
CH686635A5 true CH686635A5 (en) 1996-05-15

Family

ID=4227743

Family Applications (1)

Application Number Title Priority Date Filing Date
CH217994A CH686635A5 (en) 1994-07-08 1994-07-08 Injection nozzle for directing fuel into combustion unit

Country Status (1)

Country Link
CH (1) CH686635A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19922964A1 (en) * 1999-05-19 2000-11-30 Daimler Chrysler Ag Fuel injection method
US20170101973A1 (en) * 2015-10-08 2017-04-13 Ford Global Technologies, Llc Injector arrangement for an internal combustion engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19922964A1 (en) * 1999-05-19 2000-11-30 Daimler Chrysler Ag Fuel injection method
DE19922964C2 (en) * 1999-05-19 2003-03-27 Daimler Chrysler Ag Method of injecting diesel fuel
US6644268B2 (en) 1999-05-19 2003-11-11 Daimlerchrysler Ag Method for the injection of fuel
US20170101973A1 (en) * 2015-10-08 2017-04-13 Ford Global Technologies, Llc Injector arrangement for an internal combustion engine
CN106640462A (en) * 2015-10-08 2017-05-10 福特环球技术公司 Injector arrangement for an internal combustion engine
US9897060B2 (en) * 2015-10-08 2018-02-20 Ford Global Technologies, Llc Injector arrangement for an internal combustion engine

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