초록 ▼

Gas pressure regulator valve adapted to a household appliance for the supply of a flow of NG or LPG gas that comprises a valve body (11) with an inlet conduit (12), an outlet conduit (13) of the gas at a nominal pressure, a pressurised chamber (14) connecting both conduits through a regulation valve

Gas pressure regulator valve adapted to a household appliance for the supply of a flow of NG or LPG gas that comprises a valve body (11) with an inlet conduit (12), an outlet conduit (13) of the gas at a nominal pressure, a pressurised chamber (14) connecting both conduits through a regulation valve (39,40), a diaphragm (22) connected to the valve member (39), a closure cap (26) and means (26-29,19,23,35) for the adjusting of the nominal pressure for NG or LPG gas. The adjusting means include a prestressed adjusting screw (35) on the diaphragm (22), a guide means (28) of the rotation on the cap (26) and a stopper means of the rotation on the body (11). The pressure value is adjusted by the rotation of the cap between two positions.

대표청구항 ▼

What is claimed is: 1. A gas pressure regulator valve adapted to a household appliance for the supply of a gas flow of any type of gas, natural NG or liquified LPG, comprising: a valve body with an inlet gas conduit from a NG or a LPG source at a variable pressure Pi, an outlet gas conduit of NG or

What is claimed is: 1. A gas pressure regulator valve adapted to a household appliance for the supply of a gas flow of any type of gas, natural NG or liquified LPG, comprising: a valve body with an inlet gas conduit from a NG or a LPG source at a variable pressure Pi, an outlet gas conduit of NG or LPG gas supplied at a respective nominal adjusted pressure Pn or Pl of said two types of gas, and a peripheral assembly surface; a pressurised gas chamber connecting both the inlet and outlet conduit through a regulation valve whose passage hole is adjustable, a division diaphragm connected to the valve member and assembled securely on the valve body, through a flexible seal; a rotatable closure cap assembled on the valve body and defining an air chamber above the diaphragm at the atmospheric pressure; adjusting means of said nominal pressure value Pn or Pl of the gas acting on the diaphragm and the valve member to effect on the latter a prefixed adjusting displacement, said adjusting means comprising an adjusting screw threaded in the closure cap, at least one adjusting spring, prestressed and acting on the diaphragm to keep said pressure Pn or Pl in the gas chamber constant, a rotation guide in the closure cap and a rotation stopper in the valve body engageable with the rotation guide, and the closure cap provided with a retainer that retains the closure cap on the valve body, in the axial direction of the closure cap and of the valve body, permitting a degree of freedom for the rotation of the closure cap in relation to the valve body between two angular positions, an arc (A) being spaced between them, and wherein said adjusting means on the closure cap determines in conjunction with a feature on the diaphragm two displacements of the valve member different to each other, for the adjusting of said respective nominal pressures Pn and Pl. 2. The gas pressure regulating valve according to claim 1, wherein said closure cap comprises a spacer that provides, in said air chamber, a space of separation of the closure cap on a base of the diaphragm and a peripheral rim that is positioned on said peripheral assembly surface on the valve body, for its sliding in rotation on said flexible seal, and a rigid retention ring of the closure cap secured to said valve body in such a way that the closure cap is conferred with said degree of freedom for the rotation (A). 3. The gas pressure regulating valve according to claim 1, wherein said said feature on the diaphragm comprises at least a pair of protuberances on the diaphragm oriented towards said air chamber and said adjusting means comprises at least two inserts on the closure cap projecting towards the diaphragm from a relative position in the specific radial direction which, in one of said angular positions of the closure cap act on the diaphragm protuberances, displacing the valve member to a prefixed adjusting opening of the regulation valve.