Fuel supply module

An inlet adapter for a pump in a housing defining a vapor reservoir and a fuel reservoir, the inlet adapter comprising:

• an upper cup having:
• a bottom defining a port in fluid communication with the vapor reservoir;
• an upper sidewall upstanding from the bottom to form an upper interior filled via the port;
• and
• a hollow column extending upwardly from the bottom of the upper cup, the hollow column defining a column vapor opening;
• and
• a lower cup having:
• a lower sidewall having a lower sidewall depending from the bottom and defining a lower interior;
• and
• a coupling extending from the lower sidewall and configured to connect to a withdrawal line, the coupling defining an inlet for drawing liquid fuel via the withdrawal line from the fuel reservoir into the lower interior for delivery to the pump,
• wherein the column vapor opening is located at an apex of the inlet adapter and establishes fluid communication between the upper interior and the lower interior to permit ullage to flow from the vapor reservoir through the column vapor opening and into the pump for consumption by an engine.

A fuel supply module configured to manage vapor within a fuel system, comprising:

• a housing;
• a seal dividing an interior of the housing into a fuel reservoir and a vapor reservoir positioned above the fuel reservoir;
• a main pump having an inlet in fluid communication with the fuel reservoir;
• and
• an inlet adapter disposed within the housing and including:
• an upper cup extending into the vapor reservoir and having at least one port placing the fuel reservoir in communication with the vapor reservoir;
• a lower cup defining a lower interior fluidly connected to the inlet of the main pump;
• and
• a hollow column extending from the upper cup and defining a vapor opening in communication with the lower interior,
• wherein operation of the main pump draws ullage from the vapor reservoir through the hollow column and into the lower interior for delivery toward the main pump.