| 摘要 |
The present invention relates to a fuel reduction device for a vehicle which returns the fuel to the fuel reduction device and simultaneously activates the fuel in a bypass process by bypassing the backflow of fuel supplied from the fuel reduction device to the fuel reduction device. The present invention comprises: a fuel reduction unit (100) having main pipes (11, 12) connected to an inlet side and an outlet side to transfer the fuel; and a backflow prevention unit (20) which is provided on bypass pipes (13, 14) branched from the main pipes (11, 12) to bypass the backflow of the fuel and includes a housing (21) in which an inlet (22) and an outlet (23) are formed at both ends thereof to be connected to the bypass pipes (13, 14) and a cylindrical chamber (24) is formed in the inside thereof, and a valve body (30) which is provided in the inside of the chamber (24) to open/close the inlet (22) and the outlet (23), wherein the valve body (30) is formed in the shape of cylinder and includes a plurality of helical grooves (31) formed in a longitudinal direction on an outer circumference thereof, a sheet surface (32) which can be closely attached on the inlet (22) and is formed at one end thereof, and a plurality of protrusions (33) which are formed, at a predetermined interval at the other end thereof to be separated from the outlet (23). |
