Title:
軽量低透過性ピストン内蔵スリーブ型アキュムレーター
Document Type and Number:
Japanese Patent JP2008531956
Kind Code:
A
Abstract:
A lightweight, low permeation, piston-in-sleeve high pressure accumulator is provided. The accumulator includes a cylindrical composite pressure vessel with two integral rounded ends. A piston slidably disposed in a thin nonpermeable internal sleeve in the accumulator separates two chambers, one adapted for containing a working fluid and the other adapted for containing gas under pressure. Working fluid is provided in a volume between the nonpermeable internal sleeve and the composite pressure vessel wall. Further means are provided for withstanding harmful effects of radial flexing of the composite vessel wall under high pressures, and from stresses present in use in mobile applications such as with a hydraulic power system for a hydraulic hybrid motor vehicle. A method for pre-charging the device is also presented.
Inventors:
Moscarik, Andrew, Jay
Gray, Charles, El
Gray, Charles, El
Application Number:
JP2008500793A
Publication Date:
August 14, 2008
Filing Date:
March 06, 2006
Export Citation:
Assignee:
United States Environmental Protection Agency
International Classes:
F15B1/24; F16L55/04
Domestic Patent References:
| JPH0211203U | 1990-01-24 | |||
| JPS5039688U | 1975-04-23 | |||
| JPS5913101A | 1984-01-23 | |||
| JP2003519595A | 2003-06-24 |
Foreign References:
| US2715419A | 1955-08-16 |
Attorney, Agent or Firm:
Kazuo Moriya
Hiromichi Watanabe
Hiromichi Watanabe