公开(公告)号：EP0986449B1

公开(公告)日：2001-12-05

申请号：EP97928148.2

申请日：1997-06-06

申请人： HYDAC TECHNOLOGY GMBH

发明人： WEBER, Norbert ,  KLAUK, Bernd

IPC分类号： B23P15/00 ,  B21D51/24 ,  F15B1/14 ,  F16L55/05

CPC分类号： F15B1/14 ,  B21D51/24 ,  B23P15/00 ,  F15B2201/205 ,  F15B2201/3151 ,  F15B2201/3156 ,  F15B2201/41 ,  F15B2201/415 ,  F15B2201/435 ,  F15B2201/60 ,  F16L55/05

摘要： The invention relates to a method for producing a membrane reservoir with a metal case. The inventive method comprises the following steps; a) rotating a tubular piece around its longitudinal axis, b) preheating one end of the tubular piece for deformation through heat retraction by strain-hardening, c) strain-hardening the end of the tubular piece by applying at least one pressure tool, selectively heating the target area of said pressure tool to deformation temperature in order to form a floor at the end of the tubular piece with an opening at a collar, said collar being turned outwards, d) forming an inner circular groove in the central area of the tubular piece, e) introducing a membrane system, said membrane system being sustained in the circular groove by a corresponding clamping ring, and f) forming a second floor at the second end of the tubular piece according to steps b) and c).

公开(公告)号：EP0789816B1

公开(公告)日：1998-05-27

申请号：EP95937813.4

申请日：1995-10-21

申请人： HYDAC TECHNOLOGY GMBH

发明人： KLAUK, Bernd ,  SCHOLL, Josef ,  BALTES, Herbert

IPC分类号： F15B11/064 ,  E02F9/22 ,  F15B21/14

CPC分类号： B01F3/2021 ,  B01F3/2223 ,  B29B2013/005 ,  E02F9/2217 ,  F15B11/064 ,  F15B2211/20576 ,  F15B2211/212 ,  F15B2211/30505 ,  F15B2211/30515 ,  F15B2211/30525 ,  F15B2211/3059 ,  F15B2211/40584 ,  F15B2211/41536 ,  F15B2211/426 ,  F15B2211/473 ,  F15B2211/476 ,  F15B2211/50518 ,  F15B2211/5151 ,  F15B2211/55 ,  F15B2211/625 ,  F15B2211/71 ,  Y02P70/26

摘要： An energy recovery device, in particular of static and kinetic energy, has at least one hydraulically controlled working cylinder (110) or a hydraulic engine (210) that move tools back and forth, preferably up and down. The working cylinder (110) or the hydraulic engine (210) can be connected to a hydraulic circuit (132) with a pump (134) and to a hydraulic accumulator (138) by a connection line (136). The connection line (136) contains two hydraulically controlled check valves (140, 142) controlled by a control unit, in particular a distributing valve (144), depending on the displacement of the tools or on the state of motion of the working unit. An energy recovery device is thus created that does not have the disadvantages due to the use of conventional cartridge valves and that in addition is cheap and reliable to operate.

公开(公告)号：EP0986449A1

公开(公告)日：2000-03-22

申请号：EP97928148.2

申请日：1997-06-06

申请人： HYDAC TECHNOLOGY GMBH

发明人： WEBER, Norbert ,  KLAUK, Bernd

IPC分类号： B23P15/00 ,  B21D51/24 ,  F15B1/14 ,  F16L55/05

CPC分类号： F15B1/14 ,  B21D51/24 ,  B23P15/00 ,  F15B2201/205 ,  F15B2201/3151 ,  F15B2201/3156 ,  F15B2201/41 ,  F15B2201/415 ,  F15B2201/435 ,  F15B2201/60 ,  F16L55/05

摘要： The invention relates to a method for producing a membrane reservoir with a metal case. The inventive method comprises the following steps; a) rotating a tubular piece around its longitudinal axis, b) preheating one end of the tubular piece for deformation through heat retraction by strain-hardening, c) strain-hardening the end of the tubular piece by applying at least one pressure tool, selectively heating the target area of said pressure tool to deformation temperature in order to form a floor at the end of the tubular piece with an opening at a collar, said collar being turned outwards, d) forming an inner circular groove in the central area of the tubular piece, e) introducing a membrane system, said membrane system being sustained in the circular groove by a corresponding clamping ring, and f) forming a second floor at the second end of the tubular piece according to steps b) and c).

公开(公告)号：EP0789816A1

公开(公告)日：1997-08-20

申请号：EP95937813.0

申请日：1995-10-21

申请人： HYDAC TECHNOLOGY GMBH

发明人： KLAUK, Bernd ,  SCHOLL, Josef ,  BALTES, Herbert

IPC分类号： F15B21 ,  E02F9 ,  F15B11

CPC分类号： B01F3/2021 ,  B01F3/2223 ,  B29B2013/005 ,  E02F9/2217 ,  F15B11/064 ,  F15B2211/20576 ,  F15B2211/212 ,  F15B2211/30505 ,  F15B2211/30515 ,  F15B2211/30525 ,  F15B2211/3059 ,  F15B2211/40584 ,  F15B2211/41536 ,  F15B2211/426 ,  F15B2211/473 ,  F15B2211/476 ,  F15B2211/50518 ,  F15B2211/5151 ,  F15B2211/55 ,  F15B2211/625 ,  F15B2211/71 ,  Y02P70/26

摘要： An energy recovery device, in particular of static and kinetic energy, has at least one hydraulically controlled working cylinder (110) or a hydraulic engine (210) that move tools back and forth, preferably up and down. The working cylinder (110) or the hydraulic engine (210) can be connected to a hydraulic circuit (132) with a pump (134) and to a hydraulic accumulator (138) by a connection line (136). The connection line (136) contains two hydraulically controlled check valves (140, 142) controlled by a control unit, in particular a distributing valve (144), depending on the displacement of the tools or on the state of motion of the working unit. An energy recovery device is thus created that does not have the disadvantages due to the use of conventional cartridge valves and that in addition is cheap and reliable to operate.