Combustion staging system

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11204168
APP PUB NO 20180372321A1
SERIAL NO

16011865

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A combustion staging system has: a splitter; pilot and mains fuel manifolds; mains flow control valves; and fuel servo line. Each mains flow control valve has a chamber containing a piston, the chamber to a piston mains side fed by the mains fuel manifold, and the chamber to a piston servo side fed by the servo line. The piston has an open pilot-and-mains position allowing flow from the chamber mains side to the respective injector mains discharge orifice. The piston prevents flow from the chamber mains side. The piston is movable under a pressure change in the servo line relative to the mains fuel manifold. The system has a servo pump and a hydraulic motor driving it. The servo pump changes fuel pressure. Motive power for the hydraulic motor is fuel diverted from a fuel pump high pressure output, the motor returning the diverted fuel to a low pressure input.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
ROLLS-ROYCE PLCLONDON

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bickley, Daniel J Solihull, GB 8 44
Yates, Martin K East Haddon, GB 41 73

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