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W201Club.nl • Brandstofdrukregelklep : Techniek W201
Pagina 1 van 1

Brandstofdrukregelklep

BerichtGeplaatst: 20 apr 2017, 20:53
door Theo Koppenhagen
Hallo forum mensen ik heb een vraag over brandstofdrukregelklep.
De brandstofpomp brengt druk op het benzinesysteem.
De accumulator zorgt dat de druk op het benzinesysteem blijft als de benzinepomp niet meer loopt.
Wat doet dan de brandstofdrukregelklep?
Stuurt deze klep de brandstof naar de koude start verstuiver en naar de anderen verstuivers ?
Graag jullie uitleg gr Theo

Re: Brandstofdrukregelklep

BerichtGeplaatst: 20 apr 2017, 21:31
door jvs1995
De pomp levert een druk die blijft staan. Alle
injectoren of verstuivers zitten hier aan gekoppeld.
Elke injector of verstuiver spuit op een ander moment in. Er is daardoor altijd een
regelmatig druk"verlies", die door de hogedrukpomp weer bij geregeld wordt.

De brandstofklep voorziet de verstuivers en injectoren niet alleen van
brandstof, maar zorgt er ook voor dat de drukschommelingen die de pomp
veroorzaakt gedempt worden. Zo hebben de verstuivers en injectoren daar geen
last van.
Aan een brandstofgalerij zitten altijd een toevoerleiding (vanaf de pomp) een
retourleiding (die weer terug naar de tank gaat) een druksensor en een
drukregelventiel.

dit verteld google mij :?:

Re: Brandstofdrukregelklep

BerichtGeplaatst: 20 apr 2017, 22:22
door jorivanloon
De 190E heeft niet echt een 'brandstofgallerij'. De spinnenkop van de K(e)-jetronic verdeelt brandstof naar de verstuivers/injectors. De brandstof-injectie is niet sequentieel met dit systeem. Er is een continu flow uit elke injector, afhankelijk van de hoeveelheid lucht die langs de luchtweger gaat (mechanische luchtmassameter). Met dit systeem zijn de drukgolven in het brandstofsysteem minimaal. Wel is t van belang om een stabiele toeleveringsdruk te hebben. Hiervoor zorgt de brandstofdrukregelklep. De pomp zorgt voor een bepaalde continue flow (en is gebouwd op een bepaalde maximum druk), de drukregelklep zorgt er voor dat de toelevering naar de spinnenkop een constante druk heeft, ook wanneer de gevraagde flow naar de motor toe-of afneemt door een actie van jouw rechtervoet. (of bij de geluksvogels onder ons; een slinger aan het 2e hendeltje links van de stuurkolom)

Google maar een op K-jetronic (of CIS in t engels). Dan kom je mooie schematjes tegen van dit geniale systeem :clap:

Re: Brandstofdrukregelklep

BerichtGeplaatst: 21 apr 2017, 07:35
door Theo Koppenhagen
Maar is de brandstofdrukregelklep dan vacuĆ¼m gestuurd met een spiraalveer ?
GR Theo

Re: Brandstofdrukregelklep

BerichtGeplaatst: 21 apr 2017, 09:17
door jorivanloon
Bij mijn weten is de brandstofdruk met een veer geregeld. Het K-jetronic systeem draait op een drukbalans, en heeft dus een stabiele aanvoerdruk nodig. Een vacuum-geregelde aanvoerdruk lijkt mij onlogisch. Maar dit weet ik niet zeker!

Om even terug te komen op de accumulator; het zijn niet de drukgolven van de injectors die het probleem vormen, maar de drukgolven van de pomp. Die kunnen bij starten met een warme motor zorgen voor het ontstaan van dampbellen in het injectie-systeem. De accumulator is geplaatst om deze drukgolven wat op te vangen, en daarmee een stabiele toevoer te garanderen.

Re: Brandstofdrukregelklep

BerichtGeplaatst: 21 apr 2017, 17:23
door Theo Koppenhagen
Dank je wel voor deze informatie .
GR Theo

Re: Brandstofdrukregelklep

BerichtGeplaatst: 25 apr 2017, 09:44
door Prometheus