The fuel, returned through a return conduit (101) to a fuel tank (1), comes into contact with the outer side wall surface of a filter case (53), so that the filter case is wetted by the returned fuel. Therefore, the static electricity charged in the filter...

In a variable valve event and lift mechanism that rotates a control shaft (16) by a motor to successively vary a valve event and a valve lift amount of engine valves (12), a VEL control unit integrally provided with an angle sensor (104) that detects a rot...

Cylinder judgment signals are output from a plurality of cam sensors at every uneven crank angle interval. The number of cylinder judgment signals output from one cam sensor during a time of period between a previous output and a present output of cylinder...

A fail-safe processing method for an internal combustion engine including: carrying out a failure diagnosis for determining whether a failure of an electronic-controlled intake device occurs; determining whether a mode of the failure of the electronic-cont...

In an electronically controlled fuel injection apparatus of a speed density type, a new air intake efficiency correction value for correcting an intake pressure is calculated based on the intake pressure, an engine rotation speed, and an advance angle amou...

In a cylinder discrimination device in an engine, a crank angle signal is output for each unit crank angle in synchronization with the rotation of a crankshaft in the engine, different numbers of cylinder discrimination signals are output corresponding to ...

An internal combustion engine is equipped with a plurality of cam sensors that output cylinder discrimination signals during every uneven crank angle interval, and specific cylinders are discriminated based on said cylinder discrimination signals output fr...