Invention Grant
- Patent Title: Energy-efficient hydraulic drive for the linear movement of a mass
- Patent Title (中): 节能液压驱动器用于线性运动的质量
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Application No.: US13342262Application Date: 2012-01-03
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Publication No.: US09021797B2Publication Date: 2015-05-05
- Inventor: Gerd Scheffel
- Applicant: Gerd Scheffel
- Applicant Address: DE Bielefeld
- Assignee: Parker Hannifin Manufacturing Germany GmbH & Co. KG
- Current Assignee: Parker Hannifin Manufacturing Germany GmbH & Co. KG
- Current Assignee Address: DE Bielefeld
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Priority: DE102011008145 20110108
- Main IPC: F15B1/027
- IPC: F15B1/027 ; F15B21/14 ; F15B1/02 ; F15B11/22

Abstract:
Hydraulically driven arrangement for the linear movement of a mass body consisting of two double acting cylinders coupled in parallel, whereby one operating cylinder is a control cylinder for controlling the movement of the mass body, which is split into an acceleration phase, a movement phase and a brake phase. The other operating cylinder is connected as a drive cylinder to the hydraulic power pack as an energy storage, in a manner that the power pack during the acceleration phase of the mass body generates the drive energy for the drive cylinder, and the drive cylinder in the brake phase of the mass body, which serves as a pump for charging the hydraulic power pack. The control cylinder and drive cylinder each have a piston with a one-sided piston rod coupled to the mass body. The control cylinder and the drive cylinder are controlled by hydraulically separated, independent control circuits.
Public/Granted literature
- US20120192553A1 ENERGY-EFFICIENT HYDRAULIC DRIVE FOR THE LINEAR MOVEMENT OF A MASS Public/Granted day:2012-08-02
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