Patent ID: 7114513
Filing Date: 2006-10-03
Classification: B60K,F02M,Y10T

Abstract:
1. A fuel valve for connecting a fuel tank and a canister, comprising: an upper chamber communicating with the canister, a lower chamber connected to the upper chamber to be disposed inside the fuel tank and having a side wall and a bottom, a communicating port disposed between the upper chamber and the lower chamber for communication therebetween, said communicating port having a first communicating port, and a second communicating port having a size smaller than that of the first communicating port, a float member disposed in the lower chamber for blocking the communicating port when a fuel enters the lower chamber, one of a bottom orifice and a one-way valve formed in the bottom of the lower chamber for preventing the fuel to flow into the lower chamber therethrough and allowing the fuel to flow out from the bottom of the lower chamber therethrough, and a fuel inlet formed at a lower side of the side wall to face upwardly to allow the fuel to gradually enter the lower chamber so that an inner pressure in the fuel tank increases by entering the fuel into the lower chamber after the fuel reaches the fuel inlet, wherein said lower chamber is formed of a first chamber communicating with the upper chamber through the first communicating port and a second chamber communicating with the upper chamber through the second communicating port; and said float member includes a first float situated in the first chamber for blocking the first communicating port and a second float situated in the second chamber for blocking the second communicating port.