INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To solve a problem that suitable detection of an intake pipe pressure becomes impossible when a portion of a throttle body downstream of a throttle valve is broken by impact caused due to collision of a vehicle or the like in the throttle body of an internal combustion engine for detecting an intake pipe pressure and for setting a fuel injection quantity. SOLUTION: The internal combustion engine is mounted on the vehicle and comprises an internal combustion engine body having an intake system, a pressure sensor disposed in the intake system and outputting a signal for setting a fuel injection quantity and the throttle body having the throttle valve built therein for controlling an intake air amount and disposed upstream of the pressure sensor. The throttle body is formed of an inlet side pipe body portion through which intake air enters, a valve pipe body portion having the throttle valve built therein in communication with the inlet side pipe body portion and an outlet side pipe body portion through which the intake air passing the valve pipe body portion exits toward the pressure sensor. Strength of the inlet side pipe body portion is set lower than strength of the outlet side pipe body portion. COPYRIGHT: (C)2006,JPO&NCIPI