System for filling a pressure medium accumulator

Details System for filling a pressure medium accumulator System for filling a pressure medium accumulator

2005-01-25

2005-01-25

Walczak, David J. (Department: 3751)

Fluent material handling, with receiver or receiver coacting mea

Processes

Gas or variation of gaseous condition in receiver

C141S046000, C138S030000

Reexamination Certificate

active

06845793

ABSTRACT:
A method of filling a pressure medium accumulator with a housing having an inner space that is subdivided into two chambers by a metallic pleated bellows used as a media-separating element. The first chamber thereof is filled with a gas and the second chamber is filled with a liquid pressure medium. The bottom valve is provided in a hydraulic port, its closing member being operable by the media-separating element. The valve permits filling of the second chamber with fluid and prevents a complete evacuation of the second chamber. To enable reliable filling of the above-mentioned chambers with corresponding media without damaging the pleated bellows, the method includes the steps of evacuating the second chamber, filling the second chamber with pressure medium and filling the first chamber with a gas.

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Patent Abstracts of Japan, Publication No. 2001082401, Publication Date Mar. 27, 2001, Applicant: NOK Corp., Inventor: Mizoshita Shingo, Title: Liquid Filling Method of Pressure Vessel.
Search Report of the German Patent Office for Appln 101398115.

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