Fuel pressure regulartor with jet pump

A fuel pressure regulator, comprising:

• a housing that is distinct from a fuel tank, having a first body with a valve seat, the housing having a second body coupled to the first body, the housing having an inlet, a pressure regulating chamber in communication with the inlet, and the housing has an outlet;
• a diaphragm carried by the housing and defining part of the pressure regulating chamber, the diaphragm having a first position closing the valve seat and a second position in which fuel flows through the valve seat;
• and
• a secondary fuel pump carried by the housing, the secondary fuel pump having nozzle and an intake passage communicated with an area downstream of the nozzle and with the outlet, wherein the nozzle is aligned with the outlet and fuel that flows through the valve seat then flows through the nozzle prior to exiting the housing through the outlet, wherein fuel flow through the nozzle creates a drop in pressure to draw fuel into the housing through the intake passage.

A pressure regulator for pumping fuel in a fuel tank, the pressure regulator comprising:

• a first body defining:
• an inlet;
• a first portion of a regulating chamber in fluid communication with the inlet;
• a jet pump inlet in fluid communication with the regulating chamber;
• a valve seat between the regulating chamber and the jet pump inlet;
• a nozzle in fluid communication with the jet pump inlet;
• a discharge chamber in fluid communication with the nozzle;
• an intake passage in fluid communication with the discharge chamber for ingress of fluid from the fuel tank;
• and an outlet in fluid communication with the discharge chamber;
• a second body defining:
• a dry chamber;
• and a second portion of the regulating chamber;
• a diaphragm coupled between the first and second body to move between a normally closed position against the valve seat to prevent fuel from flowing through the valve seat and an open position spaced from the valve seat to allow fuel to flow through the valve seat;
• and
• a spring in the dry chamber for biasing the diaphragm into the normally closed position,
• wherein when the diaphragm is moved from the normally closed position to the open position by sufficient fuel pressure in the regulating chamber, fuel passes through the valve seat to the jet pump inlet so that the nozzle increases a velocity of the fuel that discharges into the discharge chamber, thereby creating a negative pressure in the discharge chamber to draw additional fuel from the fuel tank into the intake passage to join the fuel flowing through the nozzle and, thereby, functioning as a jet pump.