Patent · US Active

Lightning-protection spark gap

US12218490B2 · kind B2 · utility

0Cited by

2References

10Claims

0Family size

Assignee

DEHN SE · DE

Inventors

Bernhard Krauss · Burgthann, DE
Stephan Hierl · Dresden, DE
Uwe Strangfeld · Koblenzer Straße, DE

Key dates

Filing date	Nov 8, 2021
Grant date	Feb 4, 2025
Priority date	—
Expiry date	Nov 8, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH01T4/14
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present invention relates to a lightning-protection spark gap, comprising a housing (G); a first electrode (3a), and a second electrode (3b), which diverge from each other; wherein, between the first inner side (Ia) of the first electrode (3a) and the second inner side (Ib) of the second electrode (3b), an ignition region (Z) and a subsequent propagation region (L) for an arc are formed; wherein the housing (G) forms an arc chamber (LK), which is arranged between the first and second electrodes (3a, 3b) and which is delimited by a quenching chamber (4); wherein, in the housing (G), at least one gas circulation channel (K1) is configured, by means of which a gas flow escaping from the quenching chamber (40) can be returned to the arc chamber (LK) via a first cut-out (V1; V1′; V1″; V1′″) in the propagation region (L) of the first electrode (3a).

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