Patent ID: 7343904

Claim:
A canister close valve device for opening or closing a passage of a canister collecting evaporation gas evaporated in a fuel tank and a passage communicating with the atmosphere, the canister close valve device comprising: a housing, comprising: a first vapor line making the fuel tank communicate with a canister; a second vapor line arranged to be spaced apart from the first vapor line by a predetermined distance and to be parallel to the first vapor line, the second vapor line making the atmosphere communicate with the canister; and a coupling part coupling the first vapor line to the second vapor line; a first diaphragm valve assembly opening or closing the first vapor line; a second diaphragm valve assembly opening or closing the second vapor line; and a solenoid valve mounted to the coupling part, and including a magnetic body which is coaxially and slidably connected to the first and second diaphragm valve assemblies to move the first and second diaphragm valve assemblies; wherein the magnetic body is connected to a first stem of the first diaphragm valve assembly, the first stem is latched to a spool connected to a second stem of the second diaphragm valve assembly, and the first and second diaphragm valve assemblies have on respective rear surfaces thereof first and second return springs to bias the first and second diaphragm valve assemblies.