| 摘要 |
PROBLEM TO BE SOLVED: To made cool startability without a manual operation by automatically increasing a number of revolution of an engine so as not to stop the engine when a load is applied to the engine under a condition that a throttle valve is idled, while a carburetor for a vessel engine is made simple and inexpensive. SOLUTION: According to this carburetor for a vessel engine, when a throttle valve 20 is in an idling position, an intake manifold negative pressure at the time of idling is introduced into a negative pressure chamber 13 of an actuator 10, and a rod 15 projecting on a diaphragm 12 is separated from a valve opening lever 22 affixed to a throttle valve shaft 21. When a load is applied to the engine and the intake manifold negative pressure is lowered, the rod 15 is moved in a projecting direction by a force of a spring 16 and the valve opening lever 22 is pressure-rotated, so as to open the throttle valve 20 to a certain opening position and increase a number of revolution of the engine. COPYRIGHT: (C)2005,JPO&NCIPI |
