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US Patent 7556017 Twin needle valve dual mode injector

Patent 7556017 was granted and assigned to Caterpillar Inc. on July, 2009 by the United States Patent and Trademark Office.

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Patent
Patent
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Patent attributes

Current Assignee
Caterpillar Inc.
Caterpillar Inc.
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
75560170
Patent Inventor Names
Dennis Henderson Gibson0
Date of Patent
July 7, 2009
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Patent Application Number
113937060
Date Filed
March 31, 2006
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Patent Citations Received
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US Patent 11885290 Fuel injector and nozzle assembly having dual concentric check assembly and ducted spray orifices
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US Patent 11852113 Fuel injector having spray ducts sized for optimized soot reduction
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US Patent 11867142 Systems and methods for fuel injector control
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Patent Primary Examiner
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Erick Solis
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Patent abstract

A fuel injector having an injector body defining a hollow interior configured to receive pressurized fuel, a first nozzle configured for providing a first fuel spray pattern, and a second nozzle configured for providing a second fuel spray pattern different from the first fuel spray pattern. The first and second nozzles may be configured to inject fuel supplied from a common source into a combustion space. The fuel injector may further include first and second needle valve members corresponding to the first and second nozzles, respectively. The first and second needle valve members may be positioned within the hollow interior of the injector body, with the second needle valve member being spaced from, but adjacent to the first needle valve member.

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