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. 22, 1982
Filed:
Jul. 18, 1980
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An electro-mechanical switch, which is part of an electrical current circuit, is disposed in a fuel injection nozzle for internal combustion engines. The first switch contact is secured via an insulating body of a pressure bolt of the nozzle needle; the second switch contact is held pressed against the first switch contact by a contact spring supported on the pressure bolt, so that the portion of the electrical current circuit comprising the nozzle is closed. At the beginning of the opening stroke of the nozzle needle, the second switch contact, because of its inertia of mass, briefly fails to follow the first contact so that the electrical current circuit is interrupted; it is closed by the followup of the first switch contact caused by the contact spring. The switch can be inserted inside a normal injection nozzle without great expense.