公开(公告)号：US20060102126A1

公开(公告)日：2006-05-18

申请号：US11274086

申请日：2005-11-15

申请人： Hiroshi Nakata ,  Makoto Waku

发明人： Hiroshi Nakata ,  Makoto Waku

IPC分类号： F02M1/12

CPC分类号： F02M1/12

摘要： A method and system for preventing excessive fuel supply during engine startup, including supplying supplementary fuel during cranking of a cold engine and preventing supply of the supplementary fuel if the engine fails to start running. A solenoid valve in a supplementary fuel supply passage permits the supply of supplementary fuel. A switching device controls the solenoid valve and is grounded by a thermistor that is placed adjacent to a heater element. During cranking, electric current is supplied to the heater element, which progressively increases in temperature to cause the electric resistance of the adjacent thermistor to decrease over a predetermined time, thereby causing the transistor to turn off and deactivate the solenoid valve. Thus, if the engine fails to start within the predetermined time, the supplementary fuel supply is cut off by the solenoid valve, thereby reducing the possibility of excessive fuel enrichment and engine flooding.

摘要翻译： 一种用于在发动机启动期间防止燃料供应过量的方法和系统，包括在发动机起动期间提供辅助燃料，并且如果发动机不能开始运行，则防止补充燃料的供应。 辅助燃料供应通道中的电磁阀允许补充燃料的供应。 开关装置控制电磁阀，并通过与加热器元件相邻放置的热敏电阻接地。 在起动期间，向加热元件供给电流，温度逐渐增加，相邻热敏电阻的电阻在预定时间内下降，从而使晶体管关闭并使电磁阀停用。 因此，如果发动机在预定时间内未能起动，则辅助燃料供应被电磁阀切断，从而减少过度燃料浓缩和发动机淹没的可能性。

公开(公告)号：US20070028881A1

公开(公告)日：2007-02-08

申请号：US11580558

申请日：2006-10-13

申请人： Hiroshi Nakata ,  Makoto Waku

发明人： Hiroshi Nakata ,  Makoto Waku

IPC分类号： F02M1/12

CPC分类号： F02M1/08

摘要： A method includes controlling supply of supplementary fuel through a supplementary fuel supply passage in a carburetor to an engine. Engine cranking is sensed, and the supply of the supplementary fuel is prevented when the engine cranking reaches a prescribed number of revolutions. Accordingly, an excessive amount of fuel is not supplied to the engine when the engine fails to start, so that flooding of an engine spark plug can be avoided and the possibility of successfully starting the engine by subsequent engine cranking is increased.

摘要翻译： 一种方法包括通过化油器中的补充燃料供给通道控制补充燃料的供给到发动机。 检测到发动机起动，并且当发动机起动达到规定转数时，防止辅助燃料的供给。 因此，在发动机起动不起动的情况下，不向发动机供给过量的燃料，能够避免发动机火花塞的溢流，能够提高随后的发动机起动成功起动发动机的可能性。