| 摘要 |
PURPOSE:To simplify the structure of an operation controlling circuit for a two-kind fuel engine utilizing gas and oil and to enable to switch the engine operation to oil operation mode automatically at the time of starting and stopping the engine, by adding delay circuits in the operation controlling circuit for the engine. CONSTITUTION:A gas supply passage 4 and an oil supply passage 5 are connected to a fuel supply passage 2 of an engine 1 via a mixer 3, and a gas governor 6 connected with a driving means 8 is provided in the gas supply passage 4 while an oil governor 7 connected with a driving means 9 is provided in the oil supply passage 5. Switching of supply and discharge of pressure oil to and from hydraulic clutches 15, 16 disposed respectively between the output shaft 10 of the engine 1 and an air conditioner 11 and between the output shaft 10 of a generator 13 is controlled by a solenoid valve 17. Further, a delay circuit is provided respectively between an operation circuit and a load connecting circuit and between the operation circuit and an operation mode switching circuit of an operation controlling appratus for the engine, so that when a signal instructing starting or stopping of the engine operation given from the operation circuit is transmitted with delay of a prescribed while, the engine operation is switched to oil operation mode automatically for this while. The above modification can be achieved simply by adding delay circuits in the conventional control circuit. |
