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Re: ejector pump uses fresh fuel from..... Posted by Justin VanAbrahams [Email] (#32) [Profile/Gallery] (more from Justin VanAbrahams) on Fri, 18 Mar 2016 10:08:38 In Reply to: Re: ejector pump uses fresh fuel from....., Landjet [Profile/Gallery] , Thu, 17 Mar 2016 08:43:20 Members do not see ads below this line. - Help Keep This Site Online - Signup |
All that above makes perfect sense but, still, no other car I've worked on uses anything approaching this arrangement - everything from Fords to Audis. *Most* cars just have a pump with a sock hanging down into a depression in the tank - my XR4Ti would be an example of that. Some higher-end cars I've worked on have some pretty complex stuff going - I wish I had a picture of my B5 A4's tank. None of them include a siphon/ejector pump, none of them thought swirl pots, heat removal, air separation, etc. were important. Again going back to the XR4Ti, a Walbro with a sock hanging from the top feeds a 300hp engine without issue.
I really think this scenario is Saab grotesquely overthinking things - admittedly in the early '80s there wasn't a lot of multivalve turbo tech to draw on, so it was all theoretical work on their side. Like Jeff said, they may have been channeling the diesel gods. ;)
It's all moot - I don't think the fuel tank design would lend itself to a simplification. Without that siphon getting access to the bottom of the tank would be difficult, and it's a little difficult to redesign a plastic tank. ;)
posted by 12.195.130...
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