Dynamic seal for fuel injector needle check

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9995261
APP PUB NO 20160305382A1
SERIAL NO

14689307

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A fuel injector includes an injector body defining a liquid fuel passage, a gaseous fuel passage, and a first guide bore; a gaseous fuel check guided within the first guide bore between a retracted position and an advanced position to selectively open and block, respectively, fluid communication between the gaseous fuel passage and a gaseous fuel nozzle outlet; and a sleeve seal seated within the first guide bore, the sleeve seal having an inner surface defining a sleeve seal bore therethrough, and at least a portion of the gaseous fuel check is disposed within the sleeve seal bore; an outer surface of the sleeve seal including a first portion and a second portion, the first portion being disposed closer to a longitudinal axis of the sleeve seal bore along a radial direction than the second portion.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
CATERPILLAR INC510 LAKE COOK ROAD SUITE 100 DEERFIELD IL 60015

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Hoisan Dunlap, US 33 247

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