초록 ▼

A canister device is used to collect fuel vapors generated in a vapor space within a gasoline tank and those generated in a filler neck thereof while the tank is being filled in a vapor absorbing material accommodated therein. The accumulated fuel vapors are purged from the canister utilizing the so

A canister device is used to collect fuel vapors generated in a vapor space within a gasoline tank and those generated in a filler neck thereof while the tank is being filled in a vapor absorbing material accommodated therein. The accumulated fuel vapors are purged from the canister utilizing the source of vacuum generated in an intake manifold while the engine is running. The canister device includes a casing accommodating a vapor absorbing material layer, a first intake port provided at the intermediate portion of the casing and communicating with the vapor space in the fuel tank, a second intake port provided in one side wall of the casing and communicating with the interior of the filler neck of the fuel tank, an air port provided on the other side wall of the casing and opened into air ambient the casing, and a purge port communicating with the source of vacuum and positioned at a location or two of the casing such that the air flowing into the canister through the air port is discharged through the vapor absorbing material layer.

대표청구항 ▼

A canister device for use with a gasoline tank of a vehicle driven by a gasoline engine comprising: a canister having a top wall and perforated partitions dividing the interior thereof into a chamber for containing a vapor-absorbing material and an intake chamber and an air chamber on the opposite s

A canister device for use with a gasoline tank of a vehicle driven by a gasoline engine comprising: a canister having a top wall and perforated partitions dividing the interior thereof into a chamber for containing a vapor-absorbing material and an intake chamber and an air chamber on the opposite sides of said material-containing chamber; said intake chamber having a purge port and a first intake port in a wall of said canister, said first intake port being adapted to communicate with the interior of the filter neck of the gasoline tank; said material-containing chamber having a second intake port in the top wall of said canister adapted to communicate with the vapor space in the gasoline tank; said air chamber having an air port for communicating with ambient air outside of said canister; an upright tubular guide at the inner end of said second intake port; perforated plunger means reciprocable in said guide for engaging material in said material-containing chamber; spring means urging said plunger inwardly of said second intake port; and filter means covering the inner end of said plunger.