초록 ▼

A filler neck assembly is mounted to a fueling port at one end and to a fuel tank through a tank entry nipple at the opposite end, which assembly provides a fuel path into the tank and a vapor recovery path out of the tank while being serviced from a fuel dispensing nozzle having vapor recovery mean

A filler neck assembly is mounted to a fueling port at one end and to a fuel tank through a tank entry nipple at the opposite end, which assembly provides a fuel path into the tank and a vapor recovery path out of the tank while being serviced from a fuel dispensing nozzle having vapor recovery means. The filler neck comprises a fuel delivery tube connected to the fueling port and to the inside of the tank through a baffle within the tank entry nipple. The baffle securely seats the tube within the tank. The fuel delivery tube is coaxially mounted within the bore of an outer tube having ribs on the inside surface of its bore, the outer tube also being connected to the fueling port and to the tank entry nipple. In a second embodiment the ribs are on the outside surface of the inner fuel delivery tube while the bore of the outer tube is a smooth surface. In either embodiment the tubes are connected to the fueling port and to the inside of the tank entry nipple and the relationship of the two tubes and the tank baffle is such as to provide a vapor path between the tubes from the tank to the dispensing nozzle vapor recovery means via the valleys defined by ribs such that the vapor may be returned to the source supply of fuel.

대표청구항 ▼

Apparatus mounted in association with an entry fueling port and a fuel tank having an inlet nipple, said apparatus providing fuel entry into the tank and recovery of fuel vapor from the tank while being serviced from a fuel dispensing nozzle having vapor recovery means and comprising: inner and oute

Apparatus mounted in association with an entry fueling port and a fuel tank having an inlet nipple, said apparatus providing fuel entry into the tank and recovery of fuel vapor from the tank while being serviced from a fuel dispensing nozzle having vapor recovery means and comprising: inner and outer coaxially aligned tubes, the inner tube a fuel delivery tube having a bore diameter sufficient for receiving the dispensing nozzle therein and the outer tube characterized by a plurality of longitudinal ribs formed on the inside surface of its bore such as to define a plurality of valley-pathways between the coaxially aligned tubes, said tubes connected to the entry fueling port and to the inside of the tank inlet nipple; and baffle means mounted within the bore of the tank inlet nipple to receive fuel delivery tube in a locking engagement and provide fuel entry into the tank as dispensed from the nozzle, said baffle having a bore slightly smaller than the outside diameter of the fuel delivery tube to provide a force-fit engagement with said tube when it is inserted therethrough in the tank direction but which opposes extraction thereof in the opposite direction, and having a plurality of access ports about its periphery to provide a vapor path from the tank to the valley-pathways between the tubes and to the nozzle vapor recovery means.