| 摘要 |
<p>PROBLEM TO BE SOLVED: To inexpensively manufacture a working machine with light weight using a fuel supply device with a solenoid valve in a gas engine using household cassette cylinders.SOLUTION: In the gas engine, a fuel supply device 40 is employed without using a regulator and an evaporator, the fuel supply device 40 supplying liquid gas fed from chemical cylinders under a liquid condition into a suction passage ranging from an air filter to a combustion chamber. The fuel supply device 40 comprises a plunger case 41 that defines a first space 43a and a second space 43b provided adjacent to the suction passage; and a plunger 44 that makes the first and second spaces 43a and 43b communicate with each other so as to cutoff between the second space 43b and the suction passage when the fuel supply device 40 is moved in one end side in an axial direction, and when being moved in the other end side in an axial direction, the plunger 44 cuts-off between the first and second spaces 43a and 43b so as to make the second space 43b and the suction passage communicate with each other. The plunger 44 is driven by energizing a coil 50, and by the movement thereof, a specified quantity of fuel is supplied into the intake passage.</p> |
