Accumulator

US4020872A · kind A · utility

Inventors

• Nobuyuki Sugimura · Nanbu, JP
• Kazuo Sugimura · Nanbu, JP

Key dates

• Filing date: Nov 13, 1975
• Grant date: May 3, 1977
• Expiry date: Nov 13, 1995

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F15B2201/43
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In an accumulator consisting of a high pressure cylindrical oil vessel and a gas bladder of same figure concentrically housed therein, at the bottom of said gas bladder is provided a cushion cup with its opening upside, when the gas bladder expands in a longitudinal direction said cushion cup comes to directly contacts a poppet valve provided at the port of said oil vessel so that the bladder is not ruptured and when the gas bladder contracts in a longitudinal direction, said gas bladder can get away easily from the poppet valve.