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:
Dec. 14, 2010
Filed:
Mar. 19, 2008
Martin Heusser, Munich, DE;
Hilarius Hundschell, Isen, DE;
Martin Heusser, Munich, DE;
Hilarius Hundschell, Isen, DE;
HAWE Hydraulik GmbH & Co. KG, Munich, DE;
Abstract
A solar panel carrier T is provided at a sub-structure U such that it can be rotated and tilted by means of hydrostatic rotation and tilt motors M, M'. In an electrohydraulic adjusting device for the solar panel carrier T a motor pump aggregateis connected to the hydrostatic motors. Within working lines A, B of the tilt hydrostatic motor M at least one tilt control system K is provided, which comprises valve components and a pilot pressure circuit. The tilt control system K comprises pressure actuated blocking valves or load holding valves LHV, LHV. For automatically adjusting a protected position S of the carrier T a suction line N is provided at the side of the hydrostatic tilt motor facing to the blocking valves or load holding valves. The suction line N is surveyed by a monitoring solenoidand is opened depending on initial pressure conditions in case of switching off the electric power and/or in case of an electric breakdown. In this fashion the protected position S of the carrier T can be adjusted without consuming primary energy by use of the weight load of the carrier T itself.