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:
Aug. 30, 1988
Filed:
Mar. 11, 1987
Gunter Hartel, Neuss, DE;
Pierburg GmbH, Neuss, DE;
Abstract
To rapidly determine the position of the crankshaft of a four-cycle engine with an equal number n of cylinders in relation to its cylinders it is proposed that a signal generator attached to the crankshaft be divided along its circumference into n/2 equal signal-mark sections, each with one identification mark, and that a signal generator attached to the camshaft be divided into n/2 or n equal signal sections with equal graduations that differ from one another. The identification marks differ when the number of signal-mark sections differs and can be identical when the number of these sections is different. Comparison of the pulses from the two signal generators and synchronized by the indentification marks makes it possible to directly associate the position of the crankshaft with the cylinders even immediately after the engine starts.