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:
Jan. 08, 2013
Filed:
Sep. 13, 2007
Thomas Weickert, Karsbach, DE;
Thomas Weickert, Karsbach, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A hydraulic two-circuit system () for activating consumers (A, B; A, B; A, B) of a mobile unit, for example a track-laying unit, and an interconnecting valve arrangement (), which is suitable for a two-circuit system () of this type and via which the two circuits () can be interconnected so as to add them together, are disclosed. According to the invention, the interconnecting valve arrangement has an interconnecting valve with two pressure connections (P, P), two LS input connections (LS, LS) and two LS output connections, wherein a valve body of the interconnecting valve is designed with four control surfaces, of which two control surfaces which act in one direction are acted upon by the highest load pressure (LS) in the first circuit and by the pumping pressure (P) in the second circuit, and the control surfaces acting in the other direction are acted upon by the highest load pressure (LS) in the second circuit and by the pumping pressure (P) in the first circuit.