| 摘要 |
A method for testing fuel line integrity and flow volume in a fuel injected internal combustion engine includes the steps of turning on a fuel pump connected to a fuel supply line with the engine's fuel injectors closed so as to pressurize fuel within the fuel line to a static condition, measuring fuel system pressure in the static condition, comparing the static condition fuel system pressure with a range of predetermined static pressures for an unobstructed fuel line, opening all fuel injectors to allow fuel flow through the fuel injectors such that the fuel system is in a fully loaded condition, measuring fuel system pressure in the fully loaded condition, and comparing the fully loaded condition fuel system pressure with a range of predetermined fully loaded pressure for an unobstructed fuel line. The test can be performed without breaking the fuel line and with a minimal number of hardware components, including a communication cable, a pressure transducer, a power source, an electronic computer and video display terminal. The system for performing the test includes a processor for giving timed commands to a fuel injected apparatus, a transducer for sensing the response of the fuel injected apparatus to the timed commands, and a comparator for comparing the results of the commands, as sensed by the transducer, to predetermined values for a similar unobstructed fuel injection apparatus, so as to determine the condition of the fuel injection apparatus.
|
