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. 20, 1976
Filed:
Nov. 14, 1974
Applicant:
Inventor:
Gert Siegle, Hildesheim, DT;
Assignee:
Robert Bosch GmbH, Stuttgart, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 200 / ; 3152 / ; 3152 / ;
Abstract
Auxiliary spark gaps with magnetically or electromagnetically controllable gap spacing and gas-filled envelopes are used for distributing ignition pulses to the sparkplugs of a multicylinder internal combustion engine. A moving permanent magnet sequentially reduces the gap width in the firing order in a magnetically operated system. In an electromagnetically operated system, each gap device has a control and a switching circuit operating at low voltage and energizing the coils in turn.