Patent · US Expired

Control device for increasing speed of actuation of an electromagnetic consumer, particularly in an internal combustion engine

US4559483A · kind A · utility

5Cited by

12References

5Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Werner Jundt · Ludwigsburg, DE
Wolfgang Kosak · Asperg, DE
Peter Werner · Wiernsheim, DE

Key dates

Filing date	Jun 22, 1984
Grant date	Dec 17, 1985
Priority date	—
Expiry date	Jun 22, 2004

Classification

Technology area (CPC H)Electricity
CPC primaryH01F2007/1822
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The actuation speed of an electromagnetic consumer is increased by means of a charged capacitor which is connected in series with a consumer at such a polarity that its voltage is added to that of the power source. In one embodiment, the capacitor is switched across the power source until it is charged and then it is connected in series with the consumer at such a polarity that its positive pole is grounded while the negative pole is connected to the consumer. In another embodiment, the capacitor is first charged through the electromagnetic consumer and then it is connected with its positive pole to ground and with its negative pole to the consumer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.