Device for controlling, by means of an electrovalve, the volume liquid flowing to a receptacle
AssigneeELTEK S.p.A.
InventorSassone Luigi
Life of this patent
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Abstract
Integrated device for controlling the volume of fluids flowing through electrovalves, fop liquid distributing machines, comprising: an electrovalve (10); an impeller (4) inserted in a duct (B) for the passage of fluids, provided with one or more radial exciters, such as permanent magnets, an outside detector of the angular position of the exciters and a transductor electrically connected to the electrovalve which controls the passage of the liquid, particularly for washing machines.
Claims8
A device for controlling the volume of liquid flowing from a source of the liquid to a receptacle, the device comprising:
- a hollow body having an inlet port adapted to be connected to the liquid source and an outlet port adapted to be connected to the receptacle,
- an electrically-controlled valve for alternatively permitting and preventing flow of liquid to the receptacle,
- an impeller within the body between the inlet and outlet ports, the impeller being rotatable by liquid flowing through the body from the inlet port to the outlet port,
- means for producing an electrical signal representative of the number of rotations experienced by the impeller, and hence the volume of liquid flowing through the body,
- means responsive to the electrical signal for operating the valve to close the latter and prevent further liquid flow to the receptacle, and
- flow regulator means within the body for providing a constant rate of liquid flow to the impeller regardless of the pressure of the liquid flowing from the source.
A device for controlling the volume of liquid flowing from source of the liquid to a receptacle, the device comprising:
- a hollow body having an inlet port adapted to be connected to the liquid source and an outlet port adapted to be connected to the receptacle,
- an electrically-controlled valve for alternatively permitting and preventing flow of liquid to the receptacle,
- an impeller within the body between the inlet and outlet ports, the impeller being rotatable by liquid flowing through the body from the inlet port to the outlet port,
- means for producing an electrical signal representative of the number of rotations experienced by the impeller, and hence the volume of liquid flowing through the body,
- means responsive to the electrical signal for operating the valve to close the latter and prevent further liquid flow to the receptacle, and
- a diffuser within the body, upstream of the impeller, for spreading the flow of liquid to the impeller so as to direct the liquid flow against a region of the impeller spaced radially outwardly from the impeller axis.
Dependencies are inferred from the claim text.