Invention Grant
- Patent Title: Core burning for scramjet engines
- Patent Title (中): 燃烧喷气发动机的核心
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Application No.: US11582589Application Date: 2006-10-18
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Publication No.: US07797943B2Publication Date: 2010-09-21
- Inventor: Melvin J. Bulman
- Applicant: Melvin J. Bulman
- Applicant Address: US CA Rancho Cordova
- Assignee: Aerojet-General Corporation
- Current Assignee: Aerojet-General Corporation
- Current Assignee Address: US CA Rancho Cordova
- Agency: Wiggin and Dana LLP
- Agent Gregory S. Rosenblatt
- Main IPC: F02K7/08
- IPC: F02K7/08

Abstract:
A pilot for a scramjet provides a flame front whose arrival at the wall of the scramjet combustor is delayed thereby reducing combustor heat load. By combining in-stream injection of fuel with an interior pilot and a lean (fuel-poor) outer annulus, the bulk of combustion is confined to the scramjet combustor center. This concept, referred to as “core-burning,” further reduces combustor heat load. One such pilot is for a two dimensional scramjet effective to propel a vehicle. This pilot includes a plurality of spaced apart struts separated by ducts and a strut pilot contained within each strut. A second such pilot is for an axisymmetric scramjet engine has, in sequence and in fluid communication, an air intake, an open bore scramjet isolator and a scramjet combustor. This centerbody pilot pod includes a pilot isolator disposed between the air intake and a pilot diffuser, the pilot diffuser disposed between the pilot isolator and a pilot with the pilot disposed between the pilot diffuser and a pilot combustor. The pilot pod is in axis symmetry around a central axis of the scramjet isolator and supported by a plurality of struts extending from an inner wall of the open bore to an outer surface of the centerbody pilot pod.
Public/Granted literature
- US20080092519A1 Core burning for scramjet engines Public/Granted day:2008-04-24
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