Corona ignition device with improved seal

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United States of America Patent

PATENT NO 9751797
SERIAL NO

14822073

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Importance

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Abstract

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An electrically conductive glass seal for providing a hermetic bond between an electrically conductive component and an insulator of a corona igniter is provided. The glass seal is formed by mixing glass frits, binder, expansion agent, and electrically conductive metal particles. The glass frits can include silica (SiO2), boron oxide (B2O3), aluminum oxide (Al2O3), bismuth oxide (Bi2O3), and zinc oxide (ZnO); the binder can include sodium bentonite or magnesium aluminum silicate, polyethylene glycol (PEG), and dextrin; the expansion agent can include lithium carbonate; and the electrically conductive particles can include copper. The finished glass seal includes the glass in a total amount of 50.0 to 85.0 weight (wt. %), and electrically conductive metal particles in an amount of 15.0 to 50.0 wt. %, based on the total weight of the glass seal.

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Patent Owner(s)

Patent OwnerAddress
FEDERAL-MOGUL IGNITION LLC27300 WEST 11 MILE ROAD SOUTHFIELD 48034

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Durham, Patrick J Troy, US 2 6
Firstenberg, Keith Livonia, US 6 18
Lykowski, James D Temperance, US 79 685
Walker,, Jr William J Ann Arbor, US 33 156

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