초록 ▼

A refueling valve for a motor vehicle includes a body connected to the upper wall of a fuel tank in vertical depending relationship thereon and the body has a body top or cover with a vapor exit passage adapted to be connected to a fuel vapor storage canister, the body includes a portion depending f

A refueling valve for a motor vehicle includes a body connected to the upper wall of a fuel tank in vertical depending relationship thereon and the body has a body top or cover with a vapor exit passage adapted to be connected to a fuel vapor storage canister, the body includes a portion depending from the cover that has a vapor exit port formed therein communicating with the fuel tank interior adjacent the upper wall of the fuel tank and a vent tube has one end connected to the vapor exit passage and an opposite end communicating with the vent exit port and defining a valve seat closed by a float valve during vehicle fill and wherein the vapor exit port remains open until the float valve is completely closed and wherein the vapor exit port is spaced higher than the valve seat to separate liquid fuel particles from vapor flow. In one embodiment a baffle is located on the body between the valve seat and the vapor exit port to form a liquid trap. In another embodiment a secondary vent valve on the cover is connected to the vapor exit passage. In still another embodiment a pressure transducer port is formed in the cover.

대표청구항 ▼

A fuel vapor assembly adapted to be mounted in the top of a motor vehicle fuel tank, said assembly comprising a body having an entry passage adapted to be open to liquid fuel and fuel vapor and a vapor exit passage adapted to be connected to a fuel vapor storage device and the body being connected t

A fuel vapor assembly adapted to be mounted in the top of a motor vehicle fuel tank, said assembly comprising a body having an entry passage adapted to be open to liquid fuel and fuel vapor and a vapor exit passage adapted to be connected to a fuel vapor storage device and the body being connected to the top of a fuel tank in depending relationship therewith; a valve and said valve including a float and a valving element carried by the float and tiltable with respect to the float for compensating for tilt further characterized by: said body further including a vapor inlet passage located above said entry passage; a first tubular member supported within said body having one end sealingly connected to the vapor exit passage and having an opposite end defining a valve seat closable by the valving element and located below said vapor inlet passage for separating liquid fuel particles prior to entering said vapor exit passage; and a baffle ring connected to said body below said vapor inlet passage and spaced from said first tubular member for trapping liquid fuel particles at said vapor inlet passage for return to the fuel tank through the vapor inlet passage so as to prevent passage thereof through the first tubular member and out said vapor exit passage.