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US 10,648,588 B2Granted
Energy recovering flow control valves
AssigneePolitecnico Di Milano
InventorStefano Malavasi
Life of this patent
Estimating the term…
Abstract
A control valve for a fluid flow includes: a valve body that defines an inlet and an outlet for the fluid, an obstructer inserted in the valve body, and an actuator system configured for reversibly translating the obstructer between a first position, in which the obstructer allows the passage of the fluid between the inlet and the outlet, and a second position, in which the obstructer prevents the passage of the fluid between the inlet and the outlet; the control valve further includes a turbine rotor housed inside the valve body, wherein the rotor includes a plurality of blades and is configured for continuously rotating under the action of the fluid flowing between the inlet and the outlet, the rotor rotating about an axis of rotation substantially aligned with the direction of translation of the obstructer.
Claims16
A control valve for a fluid flow, comprising:
- a valve body that defines an inlet and an outlet for said fluid, an obstructer inserted in said valve body;
- an actuator system configured for reversibly translating said obstructer between a first position, in which said obstructer allows the passage of said fluid between said inlet and said outlet;
- a second position, in which said obstructer prevents the passage of said fluid between said inlet and said outlet, wherein the control valve further comprises a turbine rotor housed inside said valve body, wherein said rotor comprises a plurality of blades and is configured for continuously rotating under the action of said fluid flowing between said inlet and said outlet;
- said rotor rotating about an axis of rotation substantially aligned with the direction of translation of said obstructer;
- wherein said valve body internally comprises walls which delimit a fluid inlet chamber having a substantially circular seat, and wherein said obstructer is substantially disc-like shaped, and wherein said obstructer is configured for at least partially unrestricting a passage section at said seat in said first position, and wherein said obstructer is further configured for translating into said second position, so as to abut on said seat, in order to occlude said passage section;
- and
- wherein said rotor is so sized as to substantially engage the whole said passage section at said seat, and wherein said rotor is configured for an axial inflow of said fluid into it, and for a perimetrical outflow of said fluid from said rotor;
- and
- wherein said rotor is configured for allowing at least a partial accommodation of said obstructer inside of it, so as to allow translation of said obstructor into said first position.
6 more elements
A control valve for a fluid flow, comprising:
- a valve body that defines an inlet and an outlet for said fluid, an obstructer inserted in said valve body;
- an actuator system configured for reversibly translating said obstructer between a first position, in which said obstructer allows the passage of said fluid between said inlet and said outlet;
- a second position, in which said obstructer prevents the passage of said fluid between said inlet and said outlet, wherein the control valve further comprises a turbine rotor housed inside said valve body, wherein said rotor comprises a plurality of blades and is configured for continuously rotating under the action of said fluid flowing between said inlet and said outlet;
- said rotor rotating about an axis of rotation substantially aligned with the direction of translation of said obstructer;
- wherein said valve body internally comprises an ovoid element which is fixed with respect to the sidewalls of said valve body, wherein said ovoid element internally houses said obstructer, wherein said obstructer is shaped substantially like a cylinder, and wherein said obstructer is configured for at least partially unrestricting a passage section for said fluid downstream of said ovoid element in said first position, and wherein said obstructer is further configured for translating into said second position, so as to occlude said passage section by means of the lateral wall of said cylinder, in particular by means of a portion of said lateral wall without said slits.
2 more elements
A control valve for a fluid flow, comprising:
- a valve body that defines an inlet and an outlet for said fluid, an obstructer inserted in said valve body;
- an actuator system configured for reversibly translating said obstructer between a first position, in which said obstructer allows the passage of said fluid between said inlet and said outlet;
- a second position, in which said obstructer prevents the passage of said fluid between said inlet and said outlet, wherein the control valve further comprises a turbine rotor housed inside said valve body, wherein said rotor comprises a plurality of blades and is configured for continuously rotating under the action of said fluid flowing between said inlet and said outlet;
- said rotor rotating about an axis of rotation substantially aligned with the direction of translation of said obstructer;
- wherein said turbine comprises said rotor, wherein said rotor is supported by rolling elements allowing it to rotate about said axis of rotation, and wherein said turbine further comprises a transmission adapted to rotate a shaft protruding from said valve body and configured for being connected to an external mechanical or electric utilizer;
- wherein said transmission comprises:
- a mechanical transmission comprising a gear transmission having a predefined transmission ratio;
- or
- a magnetic drive transmission.
6 more elements
Dependencies are inferred from the claim text.