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. 11, 2017
Filed:
Dec. 10, 2012
Danfoss Power Solutions Aps, Nordborg, DK;
Niels Arbjerg, Sydals, DK;
Rene Andersen, Soenderborg, DK;
Danfoss Power Solutions APS, Nordborg, DK;
Abstract
A hydraulic steering device is provided comprising a supply port arrangement having a pressure port (P) and a tank port (), a working port arrangement having two working ports (L, R), a main flow path () between the pressure port (P) and the working port arrangement, a return flow path () between the working port arrangement and the tank port (), flow meter means () being arranged in said main flow path (), an amplification flow path () being arranged in parallel to said main flow path (), said amplification flow path () being connected to said main flow path () downstream said flow meter means () in a direction from said pressure port (P) to said working port arrangement. A risk of dangerous situations in case of jamming of the flow meter should be reduced. To this end pressure increasing means are provided increasing a pressure over said flow meter means () in case a flow through said main flow path () is blocked by said flow meter ().