Fuel injection type internal combustion engine

Claim 1

A vehicle equipped with a fuel injection type internal combustion engine comprising: an engine body; an intake duct fixed onto said engine body and defining an intake passage therein; a throttle valve arranged in said intake-passage; a fuel injector having a fuel nozzle arranged in said intake passage; bypass means communicating said intake passage located upstream of said throttle valve and said intake passage located downstream of said throttle valve; a vacuum operated flow control device arranged in said bypass means and operated in response to changes in the level of the vacuum produced in said intake duct; a vehicle cooling system; a steering system having a steering handle; and a torque converter having a manual control handle, wherein said vacuum operated flow control device comprises: a diaphragm apparatus having a vacuum chamber connected to an inside of said intake duct via a vacuum conduit; an electromagnetic valve arranged in said vacuum conduit; a first switch cooperating with said throttle valve and turned to the ON condition when said throttle valve is in the idling position; a second switch connected to said cooling system and turned to the ON condition when said cooling system is operated; a third switch connected to said steering system and turned to the ON condition when said steering handle is turned to its extreme position; a fourth switch turned to the ON condition when the temperature of said engine body is below a predetermined level; a fifth switch connected to said torque converter and turned to the ON condition when said manual control handle is positioned at the auto-drive range; and an electronic control circuit for actuating said electromagnetic valve in response to output signals of said first, second, third, fourth and fifth switches to establish a connection between said vacuum chamber and the inside of said intake duct when said first switch is turned to the ON condition and when at least one of said second, third, fourth and fifth switches is turned to the ON condition.