Yes, that's exactly what it's like. I took it apart further today and
revealed the impeller. If I remember to post it, I'll put up another
picture tomorrow.

On 7/25/07, Mike S <mikes@flatsurface.com> wrote:
> At 06:01 PM 7/25/2007, Don Spence wrote...
> >Anthony has posted a photo of a disassembled pump. Can someone
> >explain how this pumps fuel? Are the innards immersed in the fuel as
> >it transits the pump? what provides the pumping action?
>
> I'm pretty sure they're roller vane pumps. The pictures don't show the
> internals of the pumping head. The innards are completely full of fuel
> when operated, it cools the pump motor.
>
> Here's a diagram of a roller vane pump. Sorry, the text is in German.
> http://www.kfz-tech.de/Rollenzellenpumpe.htm
>
> Here's an animation of an ordinary vane pump. Picture the flat vanes
> replaced with cylindrical rollers and you'll have the idea.
> http://www.mekanizmalar.com/vanepump.shtml
>