초록 ▼

A fuel supply system for a vehicle, the fuel supply system being comprised of a fuel tank, a fuel pump installed in the fuel tank, a fuel level detection unit which is comprised of a float and a sensor member which detects a vertical displacement of the float, and a pressing member which presses wit

A fuel supply system for a vehicle, the fuel supply system being comprised of a fuel tank, a fuel pump installed in the fuel tank, a fuel level detection unit which is comprised of a float and a sensor member which detects a vertical displacement of the float, and a pressing member which presses with elasticity the sensor member against the inside bottom of the fuel tank.

대표청구항 ▼

1. A fuel supply system for a vehicle, the fuel supply system comprising:a fuel tank;a pump unit which is installed on a top of the fuel tank, the pump unit sucking fuel from the fuel tank and delivering the fuel to an engine;a fuel level detection device disposed in the fuel tank, the fuel level de

1. A fuel supply system for a vehicle, the fuel supply system comprising:a fuel tank;a pump unit which is installed on a top of the fuel tank, the pump unit sucking fuel from the fuel tank and delivering the fuel to an engine;a fuel level detection device disposed in the fuel tank, the fuel level detection device comprisinga float which floats on the fuel in the fuel tank, anda sensor member which is disposed between an inside bottom of the fuel tank and the pump unit, the sensor member detecting a displacement of the float; anda pressing member which is disposed between the pump unit and the sensor member, the pressing member pressing against the sensor member, the sensor member being pressed against the inside bottom of the fuel tank. 2. The fuel supply system as claimed in claim 1, wherein the pump unit comprises a fuel pump which sucks fuel from the fuel tank and delivers the sucked fuel, and a chamber which is disposed inside the fuel tank, the chamber being cylindrical and having a closed bottom to maintain fuel around an intake opening of the fuel pump. 3. The fuel supply system as claimed in claim 1, wherein the pressing member is connected to the sensor member and a bottom of the chamber. 4. The fuel supply system as claimed in claim 3, wherein the sensor member is disposed under the chamber. 5. The fuel supply system as claimed in claim 4, wherein the pressing member comprises a coiled spring, one end of the coiled spring being connected to a bottom of the chamber and another end thereof being connected to the sensor member. 6. The fuel supply system as claimed in claim 5, wherein the chamber comprises a first attachment projection on the bottom thereof, one end of the coiled spring being connected to the first attachment projection. 7. The fuel supply system as claimed in claim 6, wherein the sensor member comprises a second attachment projection on a top thereof, the other end of the coiled spring being connected to the second attachment projection. 8. The fuel supply system as claimed in claim 1, wherein the pressing member is connected to the sensor member and a side of the chamber. 9. The fuel supply system as claimed in claim 8, wherein the sensor member is disposed outside an area which is directly under the chamber. 10. The fuel supply system as claimed in claim 8, wherein the pressing member comprises a helical torsion spring, one end of the helical torsion spring being connected to a side of the chamber and another end thereof being connected to the sensor member. 11. The fuel supply system as claimed in claim 1, wherein the pressing member comprises a spring, one end of the spring being connected to the chamber and another end of the spring being connected to the sensor member. 12. The fuel supply system as claimed in claim 1, wherein the pressing member is disposed between the chamber and the sensor member. 13. The fuel supply system as claimed in claim 1, wherein the sensor member comprises an arm, one end of the arm being swingably connected to the sensor member and the other end of the arm being connected to the float. 14. A fuel supply system for a vehicle which comprises an engine, the fuel supply system comprising:a fuel tank;pump means for sucking fuel from the fuel tank and delivering the fuel to the engine, the pump means comprising containing means for maintaining an amount of fuel inside the pump means, the containing means being disposed inside the fuel tank;a float which floats on the surface of fuel in the fuel tank, the float having an upward or downward displacement which corresponds to a respective rise or fall in the surface of the fuel;sensor means for detecting the displacement of the float, the sensor means being disposed on a bottom of the fuel tank; andpressing means for pressing the sensor member against the bottom of the fuel tank with elasticity, the pressing means extending from the containing means. 15. A fuel supply system for a vehicle comprising an engine and a fuel tank, t he fuel supply system comprising:a pump unit which is disposed on a top of the fuel tank, the pump unit comprising a chamber suspended inside the fuel tank;a sensor member which is disposed on an inside bottom of the fuel tank;a float which has a displacement corresponding to a change in a level of the surface of the fuel, the displacement being detected by the sensor member; andelastic pressing means for pressing against the sensor member with elasticity, the elastic pressing means being disposed between a top of the sensor member and the chamber.