A method for the diagnosis of gaseous fluid leakages in a circuit injection-feeding gaseous fuel into each cylinder of a vehicle internal combustion engine (M) by means of an injector (5), said circuit comprising, in addition to a tank (2) for said fluid u...

An improved feed and control system for an internal combustion engine able to be fed with one or other of two fuels such as petrol and liquid gas or petrol and methane, said engine comprising a plurality of first members (26) for introducing a first fuel i...

A device for engine-driven vehicles provided with a battery and feedable with one or other of two fuels, namely a primary fuel (for example petrol) and a secondary fuel (for example gas) via a changeover switch, and comprising a central electronic engine c...

A device to enable correct operation of a vehicle internal combustion engine fed with a primary fuel such as petrol and, alternatively, with an alternative fuel such as gas, and controlled electronically by an OBD system comprising a control unit (1) conne...

The two-stage pressure regulator (10) feeds an internal combustion engine of injection type with gaseous fuel taken from a relative tank. The first stage comprises a first chamber (52) communicating with the tank via a first valve (22), a part of the inner...