Invention Application
- Patent Title: AUXILIARY POWER UNITS AND OTHER TURBOMACHINES HAVING PORTED IMPELLER SHROUD RECIRCULATION SYSTEMS
- Patent Title (中): 辅助动力单元和其他具有叶轮式回油系统的涡轮机
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Application No.: US13853951Application Date: 2013-03-29
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Publication No.: US20140294564A1Publication Date: 2014-10-02
- Inventor: Mark Matwey , Mahmoud Mansour , Yogendra Y. Sheoran
- Applicant: HONEYWELL INTERNATIONAL INC.
- Applicant Address: US NJ Morristown
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morristown
- Main IPC: F04D29/42
- IPC: F04D29/42 ; F04D29/44

Abstract:
Embodiments of a turbomachine, such as a gas turbine engine, are provided. In one embodiment, the turbomachine includes an impeller, a main intake plenum in fluid communication with the inlet of the impeller, and an impeller shroud recirculation system. The impeller shroud recirculation system includes an impeller shroud extending around at least a portion of the impeller and having a shroud port therein. A shroud port cover circumscribes at least a portion of the shroud port and cooperates therewith to at least partially define an impeller recirculation flow path. The impeller recirculation flow path has an outlet positioned to discharge airflow into the main intake plenum at a location radially outboard of the shroud port when pressurized air flows from the impeller, through the shroud port, and into the impeller recirculation flow path during operation of the turbomachine.
Public/Granted literature
- US09377030B2 Auxiliary power units and other turbomachines having ported impeller shroud recirculation systems Public/Granted day:2016-06-28
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