The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2017
Filed:
Dec. 03, 2012
Hydac Fluidtechnik Gmbh, Sulzbach/Saar, DE;
Frank Schulz, Blieskastel-Bierbach, DE;
Peter Bruck, Althornbach, DE;
HYDAC FLUIDTECHNIK GMBH, Sulzbach/Saar, DE;
Abstract
A hydraulic system includes an actuator operating as a consumer of hydraulic energy and as a generator of hydraulic energy in different operating states, and includes a hydraulic accumulator (). In an operating state of the actuator (), the accumulator can be charged by the actuator for storing energy. In a different operating state, the accumulator can be discharged for delivering energy to the actuator (). The hydraulic accumulator is an adjustable hydropneumatic piston accumulator having a plurality of pressure chambers () adjoining effective surfaces () of different sizes on the fluid side of the accumulator piston (). An adjusting arrangement () connects a selected pressure chamber () or a plurality of selected pressure chambers () of the piston accumulator () to the actuator () as a function of the pressure level that prevails on the gas side of the piston accumulator () and on the actuator ().