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:
Feb. 11, 2025
Filed:
Apr. 26, 2023
Deere & Company, Moline, IL (US);
Manuel Billich, Dischingen, DE;
Michael Meid, Waghaeusel, DE;
DEERE & COMPANY, Moline, IL (US);
Abstract
A hydraulic operating device for a cooling fan of a utility vehicle includes a hydraulic motor and a fan assembly, which can be driven by the hydraulic motor for generating a cooling air stream. A hydraulic supply is adjustable in terms of its delivery volume in accordance with pressure feedback for providing pressurized hydraulic liquid. A control valve for setting, in a manner dependent on a control signal that represents a cooling demand, a volume flow that passes through the hydraulic motor, with a sensor line that is branched off in a supply line between the control valve and the hydraulic motor leading to a pressure control inlet of the hydraulic supply.