Auxiliary torch ignition

US10711699B2 · kind B2 · utility

Assignee

• Woodward, Inc. · US

Inventors

• Bidhan Dam · Zeeland, US
• Jimroy McCormack · Holland, US
• Fei Philip Lee · Holland, US
• Conor Riordan · Zeeland, US
• Logan Oonk · Zeeland, US
• Erik Pederson · Fort Collins, US
• Michael Stratton · Zeeland, US

Key dates

• Filing date: Jul 7, 2017
• Grant date: Jul 14, 2020
• Expiry date: Jan 5, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A torch igniter includes an auxiliary fuel injector; an ignition source; and an igniter body carrying the auxiliary fuel injector and the ignition source. The igniter body includes an auxiliary combustion chamber having a side wall extending axially from a first end wall to a second end wall. In some examples, at least a portion of the side wall includes a distributed pattern of cooling apertures, with each of the cooling apertures extending obliquely from an outer surface of the side wall to an inner surface of the side wall. In some examples, the second end wall defines a fluid outlet leading to an outlet tube in fluid communication with the primary combustion chamber, at least a portion of the outlet tube including a distributed pattern of dilution apertures.