Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1996-08-12
1997-10-21
Ferensic, Denise L.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
137500, 137613, 251263, 251206, 251121, F16K 3112
Patent
active
056786026
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a gas control and dispensing assembly, intended to be mounted on a tank or storage device containing the gas under a medium or high pressure, comprising an upstream part, having an axis, for connection to the tank, a low-pressure gas outlet and, in a gas circuit between the connection part and the low-pressure gas outlet, a pressure reducer means and a flow regulator means.
BACKGROUND OF THE INVENTION
The basics of an assembly of this type are described in document WO-93/20383 in the name of the Applicant Company, which moreover describes an intermediate gas container, which can be refilled at a refilling station and can be transported in a chassis allowing it to be coupled to a user device.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a control and dispensing assembly of the type defined above, which is of simple and reliable design, is in a compact and ergonomic form, and is suitable for all types of gas storage devices and, quite particularly, for the intermediate containers, equipped with a chassis, according to the above document.
In order to do this, according to one aspect of the invention, the reducer means is arranged in the connection part and the regulator means and the low-pressure gas outlet are arranged in a downstream part, coaxially with the upstream part and securable to the latter in an arbitrary relative angular position with respect to the axis.
According to other characteristics of the invention: internal screw thread cooperating with a threaded end of one of the parts and an annular shoulder cooperating with an axial stop formed on the other part; the downstream part and in an indexing cap fixed on the downstream part by a low-pressure gas outlet connector; connection to a cylindrical internal screw thread of the tank.
With an arrangement according to the invention, the upstream part, on which there are a number of outlet connectors, can be positioned angularly in a selected configuration which facilitates connection of the outlets to their downstream circuits and, independently of this positioning of the upstream part, the downstream part, on which the low-pressure outlet connector and the indexable knurled wheel of the flow meter are located, can be positioned relative to the upstream part in a suitable configuration, also selected relative to its surroundings, in particular in a cover according to the abovementioned document.
According to other particular characteristics of the invention: equipment item and the reducer means for selectively actuating the latter; and a piston, and the connection means comprise a cam means, carried by the rotating equipment item of the flow regulator means and selectively cooperating with the piston of the reducer means.
With such an arrangement, the "shut-off tap" function of the flow pressure-reducer means, conventionally obtained by an unpierced region of the rotating barrel, is here positively provided by closing the cap of the mobile equipment item of the reducer means by forced displacement of the latter against its control spring.
According to another characteristic of the invention, the upstream part includes a filling gas passage separate from the gas circuit.
Such an arrangement makes it possible to protect the constituent components of the control and dispensing assembly from risks of adiabatic compression when the tank is being filled, if it is necessary to do this, according to local standards, through the same passage in the tank as the gas outlet passage.
BRIEF DESCRIPTION OF THE DRAWINGS
Other characteristics and advantages of the present invention will emerge from the following description of embodiments which are given by way of illustration but without implying any limitation, this description being given in conjunction with the appended drawings, in which:
FIG. 1 is a schematic view in longitudinal section of a gas control and dispensing assembly according to the invention, mounted on a tank; and
FIG. 2 is an end view, from below, of th
REFERENCES:
patent: 3885589 (1975-05-01), Iung
patent: 4011893 (1977-03-01), Bentley
patent: 4655246 (1987-04-01), Phlipot
patent: 5566713 (1996-10-01), Lhomer
patent: 5597021 (1997-01-01), Crossdale
Cannet Gilles
Fano Emmanuel
Robin Alain
Farid Ramyar M.
Ferensic Denise L.
L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation De
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