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公开(公告)号：US10023296B2
公开(公告)日：2018-07-17
申请号：US15232465
申请日：2016-08-09
Applicant: Bell Helicopter Textron Inc.
Inventor： David L. Miller , Brent Chadwick Ross
Abstract: The present invention includes an air flow bypass for a tiltrotor engine comprising: a ram air inlet comprising bypass door(s) capable of at least partially or fully blocking a ram air flow through the ram air inlet; a barrier filter inlet positioned in a side, a bottom, and/or a top of a tiltrotor engine nacelle; a filter plenum; a selector duct comprising one or more openings; and one or more selector duct doors or covers over the one or more openings; wherein the barrier filter inlet, the filter plenum, the one or more openings in the selector duct, the selector duct, and an engine are in fluid communication and the bypass door(s) in the ram inlet are closed and the barrier filter inlet provides filtered air flow to the engine when the aircraft is in hover operations.
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Patent Agency Ranking
公开(公告)号：US20180043986A1
公开(公告)日：2018-02-15
申请号：US15232465
申请日：2016-08-09
Applicant: Bell Helicopter Textron Inc.
Inventor： David L. Miller , Brent Chadwick Ross
CPC classification number: B64C7/02 , B64C27/14 , B64C29/0033 , B64D33/02 , B64D2033/0253 , B64D2033/0293
Abstract: The present invention includes an air flow bypass for a tiltrotor engine comprising: a ram air inlet comprising bypass door(s) capable of at least partially or fully blocking a ram air flow through the ram air inlet; a barrier filter inlet positioned in a side, a bottom, and/or a top of a tiltrotor engine nacelle; a filter plenum; a selector duct comprising one or more openings; and one or more selector duct doors or covers over the one or more openings; wherein the barrier filter inlet, the filter plenum, the one or more openings in the selector duct, the selector duct, and an engine are in fluid communication and the bypass door(s) in the ram inlet are closed and the barrier filter inlet provides filtered air flow to the engine when the aircraft is in hover operations.
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公开(公告)号：US20160333797A1
公开(公告)日：2016-11-17
申请号：US15090013
申请日：2016-04-04
Applicant: Bell Helicopter Textron Inc.
Inventor： Robert Michael Laramee , David L. Miller
CPC classification number: B64D33/04 , B64D2033/045 , F02K1/825 , F05D2220/90
Abstract: An exhaust system has an engine exhaust plane associated with an entrance to the exhaust system, an exhaust exit plane associated with an exit of the exhaust system, a forward cap movable relative to the engine exhaust plane and configured to selectively intersect the engine exhaust plane, and an aft cap movable relative to the exhaust exit plane and configured to selectively intersect the exhaust exit plane.
Abstract translation: 排气系统具有与排气系统的入口相关联的发动机排气平面，与排气系统的出口相关联的排气出口平面，相对于发动机排气平面可移动并且构造成选择性地与发动机排气平面相交的前盖， 以及后盖，其能够相对于排气出口平面移动并且被配置为选择性地与排气出口平面相交。
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公开(公告)号：US20180208323A1
公开(公告)日：2018-07-26
申请号：US15878075
申请日：2018-01-23
Applicant: Bell Helicopter Textron Inc.
Inventor： Thomas Dewey Parsons , David Haynes , David L. Miller , Bradley Robert Henson
IPC: B64D33/02
CPC classification number: B64D33/02 , B64D2033/0246 , F02C7/055 , F05D2220/323 , F05D2220/90 , F05D2260/606
Abstract: An air intake system (AIS) has a plenum and an inlet barrier filter associated with the plenum, through which air can selectively enter the plenum. The AIS also has an inlet duct associated with the plenum, through which air can selectively enter the plenum. The AIS also has a bypass door associated with the inlet duct, the bypass door being configured to selectively change an amount of air allowed to pass through the inlet duct. The AIS also has a filter airflow change device configured to change an amount of airflow allowed through the inlet barrier filter.
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公开(公告)号：US11077957B2
公开(公告)日：2021-08-03
申请号：US15878075
申请日：2018-01-23
Applicant: Bell Helicopter Textron Inc.
Inventor： Thomas Dewey Parsons , David Haynes , David L. Miller , Bradley Robert Henson
Abstract: An air intake system (AIS) has a plenum and an inlet barrier filter associated with the plenum, through which air can selectively enter the plenum. The AIS also has an inlet duct associated with the plenum, through which air can selectively enter the plenum. The AIS also has a bypass door associated with the inlet duct, the bypass door being configured to selectively change an amount of air allowed to pass through the inlet duct. The AIS also has a filter airflow change device configured to change an amount of airflow allowed through the inlet barrier filter.
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公开(公告)号：US10457409B2
公开(公告)日：2019-10-29
申请号：US15090013
申请日：2016-04-04
Applicant: Bell Helicopter Textron Inc.
Inventor： Robert Michael Laramee , David L. Miller
Abstract: An exhaust system has an engine exhaust plane associated with an entrance to the exhaust system, an exhaust exit plane associated with an exit of the exhaust system, a forward cap movable relative to the engine exhaust plane and configured to selectively intersect the engine exhaust plane, and an aft cap movable relative to the exhaust exit plane and configured to selectively intersect the exhaust exit plane.
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