| 摘要 |
A variable jet pump is provided to enable to suck fuel from front and rear parts of a fuel tank and the exterior of a pump module to improve noises of the fuel pump. A variable jet pump comprises a first suction pipe(22), a second suction pipe(24), a branch return pipe(30), and a variable opening/closing member(34). The branch return pipe has branch pressure pipes(26,28) connected to the first suction pipe and the second suction pipe. The branch return pipe has a branch part(32). The variable opening/closing member is installed at the branch part to open one pipe and close the other pipe depending forward and backward inclination. The variable opening/closing member includes a chamber(40) and a floating member(44). The chamber has a forward inclination port(36), a backward inclination port(38). The floating member has a rod(42) for variably opening and closing the forward and backward inclination ports. |
