Patent · US Expired

Ignition distributor cap

US4529850A · kind A · utility

1Cited by

4References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Hartmut Brammer · Leinfelden, DE
Harry Kaiser · Heidelberg, DE

Key dates

Filing date	Jul 16, 1984
Grant date	Jul 16, 1985
Priority date	—
Expiry date	Jul 16, 2004

Classification

Technology area (CPC H)Electricity
CPC primaryH01R39/60
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The high-voltage breakdown strength of the cap, and particularly of the cap portions between adjacent cap towers (4-8), is improved. The skirt (2) of the distributor cap defines an ignition distribution chamber which, in cross-section, is essentially square, with rounded corners. The outer surfaces of the cap are likewise essentially square with rounded corners. The cap towers merge smoothly into the upper end or cap portion of the cap, as well as into the skirt portion, so that no ridges or pockets are formed on the outside of the cap which might accumulate contaminants, impairing the high-voltage breakdown resistance of the cap.

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