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:
Mar. 09, 1993
Filed:
Feb. 18, 1992
Gilbert Kervagoret, Argenteuil, FR;
Bendix Europe Services Techniques, Drancy, FR;
Abstract
The pressure-regulating system for a hydraulic circuit, comprises at least one generator (22) of fluid under pressure, a hydraulic motor (20) and a reservoir (24) of fluid under low pressure. It further includes a solenoid valve controlled by a computer and comprising an electrical coil (1) and a sliding magnetic core (3) controlling a slide (7) sliding in a bore provided in a body (9). The slide (7) defines two chambers (11, 15) arranged on either side of the slide (7) in the bore. The slide (7) comprises a hydraulic cell (26) determining a reaction force opposing the force generated by the coil (1), the cell (26) being connected to one of the chambers (11, 15) as long as the solenoid valve is not energized, while it is connected to the hydraulic motor (20) after energization. An elastic mechanism (13) returns the slide (7) and the core (3) to the rest position.