公开(公告)号：US2804752A

公开(公告)日：1957-09-03

申请号：US56947456

申请日：1956-03-05

Applicant: NAT AUTOMATIC TOOL CO

Inventor： NORMAN RICHARD M ,  POWELL RUSSELL W

IPC: B29C45/82

CPC classification number: B29C45/82 ,  B29C2045/828

公开(公告)号：US5613361A

公开(公告)日：1997-03-25

申请号：US352449

申请日：1994-12-09

Applicant: Jorg Dantlgraber ,  Lothar Schulz ,  Reiner Puschel

Inventor： Jorg Dantlgraber ,  Lothar Schulz ,  Reiner Puschel

IPC: B22D17/26 ,  B22D17/32 ,  B29C45/82 ,  F16D31/02

CPC classification number: B29C45/82 ,  B29C2045/828

Abstract: A hydraulic circuit for supplying a plurality of series-operated consumers of a hydraulically controlled installation, in particular of an injection molding machine, having a pump with feed-flow pressure control, is described. To be able to slow down greater moving masses with very little expenditure in regard to circuitry and devices, only a portion of the consumers, such as the extruder, the injection unit and possibly the ejector are operated in open circulation, while at least one selected further consumer, such as the clamping unit of the injection molding machine, where a greater mass must be moved in alternating directions, is moved in semi-closed or closed circulation.

Abstract translation: 描述了一种液压回路，其用于供给具有进料流压力控制的泵的液压控制设备的多个串联操作的使用者，特别是注射成型机。 为了能够在电路和设备方面以很少的支出减缓更大的移动质量，只有一部分消费者，例如挤出机，注射单元和可能的喷射器在开放循环中操作，而至少一个选择 进一步的消费者，例如注射成型机的夹紧单元，其中更大的质量必须在交替的方向上移动，在半封闭或闭合的循环中移动。

公开(公告)号：US06557344B1

公开(公告)日：2003-05-06

申请号：US10031807

申请日：2001-11-13

Applicant: Reiner Püschel

Inventor： Reiner Püschel

IPC: F15B1116

CPC classification number: F15B21/14 ,  B29C45/82 ,  B29C2045/828 ,  F04B49/002 ,  F04B49/08 ,  F15B11/162 ,  F15B11/17 ,  F15B2211/20553 ,  F15B2211/3057 ,  F15B2211/3059 ,  F15B2211/3111 ,  F15B2211/327 ,  F15B2211/6309 ,  F15B2211/6654

Abstract: The invention relates to a hydraulic drive with a plurality of hydraulic consumers also comprising a differential cylinder which are located in particular on a plastics injection-molding machine. There are a first hydraulic machine and a second hydraulic machine, which can both operate as pump and as motor. A first of the two hydraulic machines is connected to a tank by means of a second port and rests against a pressure line by means of a first port, which pressure line can be connected to that working chamber of the differential cylinder which is remote from the piston rod via a shut-off valve. The second hydraulic machine is likewise connected to the pressure line by means of a first port and can be connected, by means of a second port, to a tank via a nonreturn valve which opens toward the second port and to the piston-rod-side working chamber of the differential cylinder via a shut-off valve. According to the invention, the two hydraulic machines are also used to supply at least one further hydraulic consumer with pressure medium. For this purpose, the at least one further hydraulic consumer can be connected to the pressure line via a directional control valve.

Abstract translation: 本发明涉及具有多个液压消耗器的液压驱动器，其还包括特别位于塑料注射成型机上的差速缸。 有第一台液压机和第二台液压机，既可以作为泵也可以作为电机运行。 两个液压机中的第一个通过第二端口连接到罐，并通过第一端口靠在压力管路上，该第一端口可以将该压力线连接到差动缸的远离该压力管路的工作室 活塞杆通过截止阀。 第二液压机器同样通过第一端口连接到压力管线，并且可以通过第二端口通过向第二端口和活塞杆侧开口的止回阀连接到罐 差压缸的工作腔通过截止阀。 根据本发明，两个液压机器还用于向压力介质​​中提供至少一个另外的液压消耗器。 为此，至少一个另外的液压消耗器可以通过方向控制阀连接到压力管路。