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:
Jul. 04, 2017
Filed:
Jul. 01, 2013
Volvo Truck Corporation, Göteborg, SE;
Sergi Yudanov, Västra Frölunda, SE;
Volvo Truck Corporation, Göteborg, SE;
Abstract
A hydraulic system includes a high pressure fluid source and a hydraulic actuator fluidly connected to the high pressure fluid source, and a low pressure fluid system fluidly connected to the hydraulic actuator via a fluid return line, and a hydraulic valve. The hydraulic valve includes a return spring and an elongate member, which is movably arranged in its longitudinal direction for controlling a fluid flow. The elongate member is biased to a closed position by the return spring. The elongate member forms a needle, the hydraulic valve includes a needle receiving body having a needle seat and the needle is engageable with the needle seat so as to control the fluid flow.