Centro Ricerche Fiat Societa' Consortile Per Azioni

C.r.f. Societa Consortile Per Azioni

Metatron S.r.l.

Filippo Audisio

Massimo Ferrera

Riccardo Gozzelino

Pietro Gianotti

Gianpiero Borello

Alberto Manzone

Riccardo Groppo

Damiano Micelli

Paolo Reggio

Massimiliano Bagnato

Provided in a gas-feed system, in particular a system for supplying methane or hydrogen to an internal-combustion engine, is an electronic pressure-reducer or pressure-regulator unit, integrated in which are both a pressure-reducing valve for reducing the pressure of the gas coming from the fuel tank to a value suitable for supplying a distribution manifold or rail and a modulating solenoid valve that functions as modulator of the degree of pressure reduction performed by the pressure-reducing valve. Likewise made in the body of said unit are passages that provide the communications of said valves with one another and of each of said valves with the inlet and the outlet for the gas in said unit. Furthermore, the unit incorporates an electronic control module for controlling the modulating solenoid valve.

Electronic pressure reducer or regulator unit for feeding gas, particularly methane or hydrogen, to an internal combustion engine, and gas feeding system including this unit

A LPG reservoir for an internal combustion engine adapted to be operated selectively with LPG and gasoline includes a pump unit which has connecting elements for a LPG outlet conduit and a LPG return conduit, as well as a sensor device for sensing the level of LPG in the reservoir.

LPG reservoir for an internal combustion engine adapted to be operated

An internal combustion engine is provided with a methane feed system including a plurality of methane injection devices respectively associated with the various cylinders of the engine. The methane injection devices are mounted within respective seats communicating with a distributing conduit or rail for feeding methane. The seats for the injection devices in the rail are formed in an auxiliary body separate from the intake manifold and the head of the engine. An electronic control unit provides for the control of the injection devices on the basis of signals indicative of the parameters of operation of the engine so as to carry out the methane injection at each cylinder when the rotational speed of the engine is lower than a predetermined threshold when the intake valve of the cylinder is open.

Internal combustion engine with methane injection system

There is described an internal combustion engine able to operate selectively either with gasoline injection or with injection of LPG in a liquid state, which is obtained from an engine able to operate only with gasoline injection.

Internal combustion engine adapted to operate selectively with injection

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Orbassano, Italy

Filippo Audisio