| 摘要 |
PURPOSE:To suppress temp. rise of the fuel in a float chamber of a carburettor of internal-combustion engine putting the lower part of the float chamber of the resting side carburettor in communication with the lower part of the float chamber of the always operating carburettor. CONSTITUTION:A suction valve 3a and a carburettor 6a operate always while a suction valve 3b and a carburettor 6b are at a standstill during low load. The float chambers 7a, 7b of carburettors 6a, 6b are in communication with each other through a communication pipe 10 by their parts filled with the fuel. When the carburettor 6b is at a standstill during low load, the fuel is supplied from a fuel tank to the float chamber 7a, even though the liquid level in the carburettor 6a has sunk, and the fuel in the carburettor 6b is also supplied to the float chamber 7a through said communication pipe 10. Thus temp. rise of the fuel in the resting carburettor 6b can be suppressed to ensure that such inconvenience as vapor lock etc. is prevented. |
