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US 3,941,144 AGranted
Supply circuits for fluids under pressure
AssigneeService National dit: Gaz de France
InventorJean-Philippe Cornil
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AssigneeService National dit: Gaz de France
InventorJean-Philippe Cornil
Estimating the term…
This invention relates to supply circuits for fluids under pressure, particularly gases. Such circuits ordinarily comprise a main pipe between a source of fluid and a point of consumption, and to which main pipe is fitted a regulator and pressure-reducer and at least one obturator is normally fitted to this main pipe downstream of the regulator and pressure-reducer. In such an arrangement, the present invention provides means for minimising over-pressures consequent on the said obturator closing which are caused by the inertia of the regulator, which means is fitted as a by-pass to the main pipe on either side of the regulator and pressure-reducer. In one preferred embodiment, this means comprises a venturi and a reservoir which is connected by a first pipe means to the venturi and wherein the venturi is fitted to a second pipe means as a by-pass to the regulator and pressure-reducer, a valve being provided in the second pipe means upstream of the venturi.
A supply circuit for a gaseous fluid under pressure which comprises a source of gaseous fluid, and a point of consumption of said gaseous fluid, a main pipe between said source of fluid and said point of consumptiion, a regulator and pressure-reducer fitted to said main pipe, at least one obturator fitted to the said main pipe downstream of the said regulator and pressure-reducer, means for minimizing over-pressures resulting from the closing of the said obturator which are caused by the inertia of the regulator, said means being arranged as a by-pass to said main pipe on either side of the regulator and pressure-reducer.
Dependencies are inferred from the claim text.