US 11,867,302 B2
Valve for hydraulic control and balancing of fluid flow rate
Samuele Molina, San Maurizio d'Opaglio (IT); Andrea Zuffellato, San Maurizio d'Opaglio (IT); Marco Rosa Brusin, San Maurizio d'Opaglio (IT); and Paolo Arrus, San Maurizio d'Opaglio (IT)
Assigned to GIACOMINI S.P.A., San Maurizio d'Opaglio (IT)
Appl. No. 17/431,870
Filed by Giacomini S.p.A., San Maurizio d'Opaglio (IT)
PCT Filed Feb. 20, 2020, PCT No. PCT/IB2020/051434
§ 371(c)(1), (2) Date Aug. 18, 2021,
PCT Pub. No. WO2020/170193, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 102019000002529 (IT), filed on Feb. 21, 2019.
Prior Publication US 2022/0146006 A1, May 12, 2022
Int. Cl. F16K 15/18 (2006.01); F16K 15/02 (2006.01); G05D 7/01 (2006.01); F16K 3/32 (2006.01); F16K 3/26 (2006.01)
CPC F16K 15/182 (2021.08) [F16K 15/028 (2013.01); G05D 7/014 (2013.01); F16K 3/265 (2013.01); F16K 3/32 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A fluid flow rate control valve comprising:
a tubular body having an inlet opening, an outlet opening, and an actuating opening that is extending along only a portion of a circumference of the tubular body; and
a rotating hollow shutter rotatively housed inside said tubular body and having a rotation axis, said rotating hollow shutter being adapted to be crossed by a fluid and is configured such that a passage cross-section inside the valve is changeable;
wherein the rotating hollow shutter comprises at least one first eccentric opening rotatively cooperating with at least one mating second eccentric opening formed on an inner wall of said tubular body;
wherein said actuating opening exposes a portion of the rotating hollow shutter and provides access to the portion of the rotating hollow shutter for actuation of the rotating hollow shutter; and
wherein the rotating hollow shutter is such that a rotation of said at least one first eccentric opening with respect to said at least one mating second eccentric opening corresponds to a variation of the passage cross-section in a direction coinciding with the rotation axis of the rotating hollow shutter.