US 11,841,089 B2
Valve with unobstructed flow path having increased flow coefficient
Mark Shorback, Southport, NC (US); Jörg Massow, Kreuztal (DE); Venkatesh Sureshrao Kulkarni, Pune (IN); Vishal Ambadas Chaudhari, Pune (IN); Ranjit Narayan Bhalkar, Pune (IN); Prashant Ramchandra Sangule, Pune (IN); and Samson Kay, Cincinnati, OH (US)
Assigned to Crane ChemPharma & Energy Corp., The Woodlands, TX (US)
Filed by Crane ChemPharma & Energy Corp., The Woodlands, TX (US)
Filed on Feb. 10, 2021, as Appl. No. 17/248,855.
Claims priority of provisional application 62/976,579, filed on Feb. 14, 2020.
Prior Publication US 2021/0254738 A1, Aug. 19, 2021
Int. Cl. F16K 27/04 (2006.01); F16K 3/22 (2006.01); F16K 3/314 (2006.01); F16K 1/226 (2006.01)
CPC F16K 27/04 (2013.01) [F16K 3/22 (2013.01); F16K 3/314 (2013.01); F16K 1/2261 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A valve comprising:
a valve body including:
a first end and a second end spaced apart along a longitudinal axis;
a central portion disposed between the first end and the second end, wherein the first end and the second end define a first flow passageway and a second flow passageway, respectively, and wherein the central portion defines an interior chamber, wherein the first end of the valve body includes a bore;
a valve seat disposed in the bore including a concave seating surface, the concave seating surface including a first inclined portion and a second inclined portion, wherein an angle of the first inclined portion is different than an angle of the second inclined portion;
a disc rotatable within the interior chamber between an open position and a closed position; and
a seal removably coupled to the disc, wherein an external surface of the seal includes a set of steps, disposed along an inclined portion of the disc, incrementally changing an external diameter of the seal, wherein each step includes a horizontal portion that is parallel with a central axis of the seal and a vertical portion that is orthogonal to the central axis of the seal,
wherein the seal and the concave seating surface define an elliptical offset from a centerline of the valve,
wherein the first inclined portion and the second inclined portion are inclined relative to the centerline,
wherein the inclined portion of the seal of the disc includes a first portion and a second portion, wherein the first portion of the seal and the second portion of the seal contact the first inclined portion of the concave seating surface and the second inclined portion of the concave seating surface, respectively, when the disc rotates to the closed position,
wherein the first portion of the seal is non-parallel to the second portion of the seal, and
wherein the first portion of the seal includes a shorter incline than the second portion of the seal.