Abstract: Pressure reducer for compressed gases, comprising at least one regulation stage constituted by a chamber divided by a first membrane (25) into two chambers (23, 24), one of which said chambers (24) is maintained at a reference pressure and the other (23) at a pressure which depends on the gas pressure in the outlet pipe (3), an opening, closed by a membrane (43) integral with a cap (42), located between the said chamber (24) at the reference pressure and the said gas outlet pipe (3), a gas inlet chamber (10) with an opening (11) which leads to the said outlet pipe (3) in correspondence with the said cap (42), the movements of which said cap open and close the passage (11) between the said inlet chamber (10) and the said outlet pipe (3), and means (41) integral with the said first membrane (25) which act on the said cap (42) so that it approaches and retracts from opening (11) of the said gas inlet chamber.

Abstract: Pressure reducer for compressed gases, comprising at least one regulation stage constituted by a chamber divided by a first membrane (25) into two chambers (23, 24), one of which said chambers (24) is maintained at a reference pressure and the other (23) at a pressure which depends on the gas pressure in the outlet pipe (3), an opening, closed by a membrane (43) integral with a cap (42), located between the said chamber (24) at the reference pressure and the said gas outlet pipe (3), a gas inlet chamber (10) with an opening (11) which leads to the said outlet pipe (3) in correspondence with the said cap (42), the movements of which said cap open and close the passage (11) between the said inlet chamber (10) and the said outlet pipe (3), and means (41) integral with the said first membrane (25) which act on the said cap (42) so that it approaches and retracts from opening (11) of the said gas inlet chamber.

Abstract: A pressure reducer designed to feed gas-driven vehicles, of the type comprising an inlet valve, an outlet valve, and a gas by-pass valve, wherein the valvular closing elements are fitted with systems designed to connect areas situated on opposite sides of the valvular closing elements in order to cancel out the force components due to the gas pressure, and systems designed to regulate the opening of the valvular elements according to the pressure detected at the outlet.

Abstract: The purpose of the pressure regulator is to feed internal combustion motors or engines with combustible gases and it comprises two membranes 14 and 16 which respond to the intake suction of the motor, while the second of the said membranes actuates dislocating members 22 to check the communication between the said chambers A2 and A3 delimited by the said membranes and connected with the utilizer by means of a duct 30. One gauged nozzle 64 delivers part of the combustible gas into chamber A3 interested by the second membrane 16 and which is directly connected with the suction 30 of the motor or engine.