Tapered anti-cavitation cage

US11112032B2 · kind B2 · utility

Inventors

• Andrew John Kinser · Walnut, US
• Paul T. Alman · Marshalltown, US

Key dates

• Filing date: Sep 9, 2019
• Grant date: Sep 7, 2021
• Expiry date: Nov 25, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/86775
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A control valve includes a cage is disposed within a valve body adjacent to a valve seat. The cage includes a first sleeve and a second sleeve. The first sleeve includes a first circumferential wall having a first inner surface, a first outer surface, and a first longitudinal axis. The first sleeve also includes a first plurality of openings disposed in the first circumferential wall. The second sleeve includes a second circumferential wall having a second inner surface and a second outer surface and a second longitudinal axis. The second sleeve also includes a second plurality of openings disposed in the second circumferential wall. The first outer surface of the first circumferential wall is tapered at a first angle relative to the first longitudinal axis, and the second inner surface of the second circumferential wall is tapered at a second angle relative to the first longitudinal axis.