Patent ID: 6039548
Filing Date: 2000-03-21
Classification: B01D,F02M,F04B

Abstract:
A fuel pump module to be disposed within a fuel tank comprising:a fuel pump having an inlet through which fuel is drawn into the fuel pump and an outlet through which fuel is delivered under pressure;a filter disposed adjacent to the bottom of the tank and having an upper wall and a lower wall defining an enclosure communicating with the fuel pump inlet for drawing fuel from the tank through the filter and into the fuel pump inlet;at least one vapor inlet within the enclosure disposed above and communicating with the fuel pump inlet, and having a smaller flow area than the fuel pump inlet flow area whereby large fuel vapor bubbles within the enclosure adjacent the filter upper wall are divided into smaller vapor bubbles upon passing through the vapor inlet to reduce and limit the maximum amount of fuel vapor drawn into the fuel pump at one time.