Liquefied petroleum gas direct injection engine (100) comprising at least one cylinder with a combustion chamber (1) having a spark plug (2), one or more intake valves (4), and one or more exhaust valves (5). The engine (100) further comprises: at least on...

Provided is a control unit (1) for an internal combustion engine (10) including a direct injector (11) directly injecting fuel into a cylinder (20) and a port injector (12) injecting fuel into an intake port (17). The control unit (1) includes an injection...

In an internal combustion engine wherein a valve timing can be changed in at least two stages and wherein an exhaust gas recirculation passage provided with a control valve is connected to an intake pipe downstream of a throttle valve, there is provided an...

An internal combustion engine control apparatus includes means that detects an inlet temperature (t3) that is a temperature in a vicinity of an inlet of a purification catalyst (20) disposed in an exhaust path (10) and means that detects a turbine temperat...

The method involves simultaneously maintaining an intake valve (11) and an exhaust valve (12) during exhaust phase and intake phase of engine cycle without injection of fuel into a combustion chamber (14) by a fuel injector (15). The exhaust valve is opene...

A control system for a direct-injection four-stroke internal combustion engine having at least one cylinder, an intake passage supplying air to the cylinder, and an exhaust passage removing exhaust gas from the cylinder, the control system including a mass...

In a multi-cylinder internal combustion engine, provided with a system for the variable actuation of the intake valves, at least one part of the engine cylinders is deactivated, cutting off fuel supply to said cylinders, under operating conditions that do ...

In an internal combustion engine wherein a valve timing can be changed in at least two stages and wherein an exhaust gas recirculation passage provided with a control valve is connected to an intake pipe downstream of a throttle valve, there is provided an...

The method involves controlling the charger with an electrical signal from a control unit to produce an air flow and/or overpressure in the induction tract and/or in the exhaust system of the internal combustion engine. The electrical charger is operated w...