Four valve disc frictionless ball valve

US11009135B2 · kind B2 · utility

Assignees

• SOUTH CHINA COMPANY, CHINA OIL & GAS PIPELINE NETWORK CORPORATION · CN
• Xi'an Aerospace Yuanzheng Fluid Control Co. Ltd · CN

Inventors

• Zhongshan Tian · 流花街道, CN
• Jun Yuan · San Diego, US
• Shaochuan Lai · 流花街道, CN
• Bo Wang · Qingdao, CN
• Changqun Yang · 流花街道, CN
• Yulong Feng · Xi'an, CN
• Long Zhong · Changsha, CN
• Zhenning Yang · Xi'an, CN

Key dates

• Filing date: Jan 14, 2020
• Grant date: May 18, 2021
• Expiry date: Jan 14, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K11/0565
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A four valve disc frictionless ball valve includes a spherical valve core assembly, wherein the spherical valve core assembly includes a wedge-shaped valve core. A closed-position valve disc is respectively installed on a pair of closed-position wedge-shaped sides. A closed-position guide key is respectively arranged at the middle positions of the pair of closed-position wedge-shaped sides along an axial direction. A closed-position guide groove is arranged on each closed-position valve disc along the axial direction. An open-position valve disc is respectively installed on a pair of open-position wedge-shaped sides. An open-position guide key is respectively arranged at the middle positions of the pair of open-position wedge-shaped sides along the axial direction. An open-position guide groove is arranged on each open-position valve disc along the axial direction.