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. 24, 1990
Filed:
Aug. 03, 1988
Guenter Kaes, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A magnetic valve with reversible flow for use in anti-skid brake systems (ABS) has an armature displaceably supported in a valve housing within a control coil. A sealing element is moved by the armature and a stationary valve seat is associated with the sealing element. The armature includes a bottom which communicates via openings with an inflow region including the sealing element, a sealing element holder, and a valve body. The sealing element formed as a sealing ball and the sealing element holder formed as a perforated disk are embodied such that within predetermined stroke and flow ranges, an aspiration effect due to the flowing medium ensues, and a retaining element provided in the form of a permanent magnet acts upon the armature and the retaining element is overcome upon electrical triggering of the magnetic valve, resulting in a large flow cross section for normal braking, and a reduced flow cross section in ABS operation.