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:
Jun. 25, 1985
Filed:
Sep. 30, 1982
Corneliu Lungu, Buhlertal, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The solenoid valve has an exciter coil formed with a central passage which at one end guides a plunger or armature of a permanently magnetic material which is polarized in the direction of its axial movement. At the other end of the passage there is provided a tubular core of a magnetically soft material which acts as a mechanical limit stop for the armature and is also shaped as a valve seat controlled by the end face of the armature. An annular magnetically conductive member is arranged at the other end of the coil around the armature and is spaced from the latter by an aggregate so as to act as a magnetic holding member for the armature when the coil is energized and the armature is displaced to its working position away from the stop member.