Device for determining the position of a crankshaft in relation to the cylinder
US4766865A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 1987 |
| Grant date | Aug 30, 1988 |
| Priority date | — |
| Expiry date | Mar 11, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/027
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.