A fuel injection system includes a fuel feed pipe for feeding fuel from a fuel tank and including upper and lower feed-pipe members joined to each other, and a plurality of fuel injection valves connected to the fuel feed pipe, each fuel injection valve in...

In a fuel supply system constituted such that there is disposed a saddle type fuel tank provided with a main chamber and an auxiliary chamber on both sides of an upwardly protruding center portion of a bottom face thereof, a fuel transfer tube which is mou...

A fuel supply system for a vehicle, the fuel supply system being comprised of a fuel tank, a fuel pump installed in the fuel tank, a fuel level detection unit which is comprised of a float and a sensor member which detects a vertical displacement of the fl...

In a constitution where, when a cam sensor is failed, a present value of cylinder discrimination value is estimated from a previous value to continue a control for each cylinder, if an engine is rotated in reverse at an engine stop and also fuel is burned ...

In an internal combustion engine provided with a variable valve mechanism that varies a valve operating characteristic of an intake valve, the valve operating characteristic of the intake valve is detected, and a flow loss coefficient and an effective open...

An open-close characteristic of an intake valve is controlled so that a target intake air amount for an engine can be obtained, and also a retarded angle limitation of closing timing of an exhaust valve is set based on opening timing of the intake valve, t...

In an internal combustion engine provided with a variable valve mechanism that varies at least a valve operating characteristic (valve lift amount, valve operating angle and the like) of an intake valve, a target volume flow ratio equivalent to a target to...