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:
Mar. 11, 2008
Filed:
Apr. 08, 2004
Michael Kuhn, Wotenitz, DE;
Hubertus Schmidt, Sulzbach, DE;
Michael Kuhn, Wotenitz, DE;
Hubertus Schmidt, Sulzbach, DE;
Hydac System GmbH, Sulzbach/Saar, DE;
Abstract
A hydropneumatic suspension having at least one suspension cylinder () and at least one hydraulic accumulator configured as a suspension accumulator () has a pilot-actuated valve () for opening or blocking a fluid-carrying connection between the suspension cylinder () and the suspension accumulator (). The pilot-actuated valve () can be moved into the blocked position by a hydraulic actuating assembly (). The hydraulic actuating assembly () taps the fluid pressure between suspension accumulator () and the suspension cylinder (), and forwards it by a switching valve () to an operating side () of the pilot-actuated valve () through a pilot-actuated line (). Another proportional valve (), or such valve connected to the respective associated pilot-actuated line (), can be between one switching valve () and the pilot-actuated valve ().