公开(公告)号：US20230090796A1

公开(公告)日：2023-03-23

申请号：US18071128

申请日：2022-11-29

Applicant: HYDAC TECHNOLOGY GMBH

Inventor： Alexander ALBERT ,  Dennis Christopher LANG

IPC: F15B1/24 ,  F16J1/09

Abstract: A piston accumulator has an accumulator housing and a separating piston (8) guided for longitudinal motion in the accumulator housing. The separating piston separates a liquid side (4) from a gas side (10) in the accumulator housing. Liquid unintentionally transitions from the liquid side (4) to the gas side (10) despite a piston seal on the separating piston (8). By a return device (28), the transitioned liquid is at least partially returned from the gas side (10) of the accumulator housing to the liquid side (4) of the accumulator housing.

公开(公告)号：US20200309158A1

公开(公告)日：2020-10-01

申请号：US16310878

申请日：2017-06-19

Applicant: HYDAC TECHNOLOGY GMBH

Inventor： Peter KLOFT ,  Herbert BALTES ,  Alexander ALBERT

IPC: F15B1/24

Abstract: A hydropneumatic piston accumulator, with an accumulator housing (1) defining a housing longitudinal axis (11), in which a piston (9) is longitudinally movable between two housing covers (5, 7) positioned opposite each other. In the housing (1), the piston (9) separates a working chamber (13) for a compressible medium, such as a working gas, from a working chamber (15) for an incompressible medium, such as hydraulic fluid, and comprises at least a part (55) of a displacement measurement device continuously determining each position of the piston (9) in the housing (1). The invention is characterised in that a rod-like guide (29, 57) is stationarily positioned in the accumulator housing (1) and passes all the way through the piston (9) in each of its displacement positions in the accumulator housing (1), the piston (9) being movably guided therealong until it reaches the stop on one of the two housing covers (5, 7), and in that the piston (9) is sealed against this guide (29, 57) using a sealing device (49, 50).

公开(公告)号：US20160138357A1

公开(公告)日：2016-05-19

申请号：US14899187

申请日：2014-06-26

Applicant: HYDAC TECHNOLOGY GMBH

Inventor： Frank BAUER ,  Martin GROBEN ,  Alexander ALBERT

IPC: E21B33/064 ,  F15B1/10

CPC classification number: E21B33/064 ,  F15B1/103 ,  F15B2201/3153

Abstract: A device (1) for adjusting a media pressure relative to an ambient pressure which is defined by a depth-dependent sea water pressure during use of the device (1), wherein the sea water pressure acts on a compensator device (35) which permits a reversible change in length or elongation, characterized in that at least two compensator elements (41) of the compensator device (35) are provided in series in the direction of the change in length or elongation.

Abstract translation: 一种用于在使用装置（1）期间调节相对于由深度依赖的海水压力限定的环境压力的介质压力的装置（1），其中所述海水压力作用在补偿装置（35）上，所述补偿装置允许 长度或伸长率的可逆变化，其特征在于，补偿器装置（35）的至少两个补偿元件（41）沿长度或伸长率的变化方向串联设置。