A DEVICE OF FUEL GAS DETECTION FOR AUTOMOBILE

摘要

The present invention relates to a fuel vapor measuring apparatus, and in particular, a fuel tank main body having a space portion for storing fuel supplied to an engine, and one end of the fuel tank main body so that the fuel vapor evaporated in the fuel tank main body can be circulated. In the fuel vapor measuring device consisting of a flow pipe disposed inside and the injection pipe connected to the fuel tank main body so that fuel can be easily injected into the fuel tank main body where one end of the euro pipe is disposed. The fuel pipe body is mounted to the euro pipe so that the internal pressure of the fuel tank body, the injection pipe, and the fuel pipe, such as the fuel pipe, which are raised due to the fuel vapor evaporating from the fuel system such as the fuel tank body, can be easily measured. A pressure sensor, the fuel inherent in the flow path and the fuel tank body in which the pressure sensor is mounted The fuel tank main body, the euro pipe and the injection can be circulated more smoothly through the fuel system such as the fuel tank main body and the euro pipe so that the internal pressure of the fuel tank main body and the euro pipe can be easily measured. When cracks or grooves are formed in a fuel system such as a pipe, the fuel tank main body and the flow path can be easily detected by the pressure sensor when the fuel vapor or fuel is released into the atmosphere from the cracks or grooves generated in the fuel tank main body. The fuel tank body is composed of a measuring pipe connected at one end to the injection pipe and connected at the other end so as to communicate with the euro pipe by a three-way valve so that the fuel system such as the pipe and the injection pipe can be confirmed beforehand. Fuel tank which is raised by fuel vapor which evaporates in fuel system When cracks or grooves are formed in fuel system such as fuel tank body, euro pipe and injection pipe by circulating fuel steam more smoothly to easily measure the internal pressure of fuel system such as sieve, euro pipe and injection pipe. By detecting fuel vapor or fuel released into the atmosphere from cracks or grooves generated in the fuel tank body in advance, it is possible to confirm whether the fuel system such as the fuel tank body, the euro pipe, and the injection pipe is damaged in advance. The present invention relates to a fuel vapor measuring apparatus capable of preventing environmental pollution in advance.