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公开(公告)号:US06969146B2
公开(公告)日:2005-11-29
申请号:US10755725
申请日:2004-01-10
申请人: John M. Brookfield , Rodney B. Hill , James D. Padgett , John S. Moore , Eric Segerstrom , Brian E. Sonnichsen , Christine M. Greiser
发明人: John M. Brookfield , Rodney B. Hill , James D. Padgett , John S. Moore , Eric Segerstrom , Brian E. Sonnichsen , Christine M. Greiser
CPC分类号: B41J2/145 , B41J2/14233 , B41J2002/14419 , B41J2002/14459 , B41J2202/20
摘要: A drop emitting device including a first linear array of columnar arrays of first nozzle pairs and a second linear array of columnar arrays of second nozzle pairs, wherein the first linear array and the second linear array extend along an X-axis, and wherein the second linear array is adjacent the first linear array such that each first nozzle pair has an associated second nozzle pair displaced therefrom along a Y-axis that is orthogonal to the X-axis. The columnar arrays of first nozzle pairs and the columnar arrays of second nozzle pairs extend obliquely to the X-axis.
摘要翻译: 一种液滴发射装置,包括第一喷嘴对的柱状阵列的第一线性阵列和第二喷嘴对的柱状阵列的第二线性阵列,其中所述第一线性阵列和所述第二线性阵列沿着X轴延伸,并且其中所述第二线阵列 线性阵列与第一线性阵列相邻,使得每个第一喷嘴对具有沿着与X轴正交的Y轴从其中移位的相关联的第二喷嘴对。 第一喷嘴对的柱状阵列和第二喷嘴对的柱状阵列相对于X轴倾斜延伸。
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公开(公告)号:US07222937B2
公开(公告)日:2007-05-29
申请号:US10755244
申请日:2004-01-10
申请人: John M. Brookfield , Rodney B. Hill , James D. Padgett , John S. Moore , Eric Segerstrom , Brian E. Sonnichsen , Christine M. Greiser
发明人: John M. Brookfield , Rodney B. Hill , James D. Padgett , John S. Moore , Eric Segerstrom , Brian E. Sonnichsen , Christine M. Greiser
CPC分类号: B41J2/145
摘要: A drop emitting device including a first linear array of columnar arrays of first nozzle pairs and a second linear array of columnar arrays of second nozzle pairs, wherein the first linear array and the second linear array extend along an X-axis, and wherein the second linear array is adjacent the first linear array such that each first nozzle pair has an associated second nozzle pair displaced therefrom along a Y-axis that is orthogonal to the X-axis. The columnar arrays of first nozzle pairs and the columnar arrays of second nozzle pairs extend obliquely to the X-axis.
摘要翻译: 一种液滴发射装置,包括第一喷嘴对的柱状阵列的第一线性阵列和第二喷嘴对的柱状阵列的第二线性阵列,其中所述第一线性阵列和所述第二线性阵列沿着X轴延伸,并且其中所述第二线阵列 线性阵列与第一线性阵列相邻,使得每个第一喷嘴对具有沿着与X轴正交的Y轴从其中移位的相关联的第二喷嘴对。 第一喷嘴对的柱状阵列和第二喷嘴对的柱状阵列相对于X轴倾斜延伸。
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公开(公告)号:US06799830B1
公开(公告)日:2004-10-05
申请号:US10755245
申请日:2004-01-10
申请人: John M. Brookfield , Rodney B. Hill , James D. Padgett , John S. Moore , Eric Segerstrom , Brian E. Sonnichsen , Christine M. Greiser
发明人: John M. Brookfield , Rodney B. Hill , James D. Padgett , John S. Moore , Eric Segerstrom , Brian E. Sonnichsen , Christine M. Greiser
IPC分类号: B41J2145
CPC分类号: B41J2/14233 , B41J2/145 , B41J2002/14419 , B41J2002/14459
摘要: A drop emitting device including a first linear array of columnar arrays of first nozzle pairs and a second linear array of columnar arrays of second nozzle pairs wherein the first linear array and the second linear array extend along an X-axis, and wherein the second linear array is adjacent the first linear array such that each first nozzle pair has an associated second nozzle pair displaced therefrom along a Y-axis that is orthogonal to the X-axis. The columnar arrays of first nozzle pairs and the columnar arrays of second nozzle pairs extend obliquely to the X-axis.
摘要翻译: 一种液滴发射装置,包括第一喷嘴对的柱状阵列的第一线性阵列和第二喷嘴对的柱状阵列的第二线性阵列,其中所述第一线性阵列和所述第二线性阵列沿X轴延伸,并且其中所述第二线性 阵列与第一线性阵列相邻,使得每个第一喷嘴对具有沿着与X轴正交的Y轴从其中移位的相关联的第二喷嘴对。 第一喷嘴对的柱状阵列和第二喷嘴对的柱状阵列相对于X轴倾斜延伸。
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公开(公告)号:US6004095A
公开(公告)日:1999-12-21
申请号:US661281
申请日:1996-06-10
CPC分类号: F02K1/28 , B64C21/025 , F01D5/145 , F02C7/045 , F02K3/06 , F04D29/667 , F04D29/681 , B64C2230/04 , B64C2230/06 , B64C2230/14 , B64C2230/28 , B64D2033/0226 , F05D2240/304 , Y02T50/166 , Y02T50/66 , Y02T50/673 , Y10S415/914
摘要: In the invention, propagating broad band and tonal acoustic components of noise characteristic of interaction of a turbomachine blade wake, produced by a turbomachine blade as the blade rotates, with a turbomachine component downstream of the rotating blade, are reduced. This is accomplished by injection of fluid into the blade wake through a port in the rotor blade. The mass flow rate of the fluid injected into the blade wake is selected to reduce the momentum deficit of the wake to correspondingly increase the time-mean velocity of the wake and decrease the turbulent velocity fluctuations of the wake. With this fluid injection, reduction of both propagating broad band and tonal acoustic components of noise produced by interaction of the blade wake with a turbomachine component downstream of the rotating blade is achieved. In a further noise reduction technique, boundary layer fluid is suctioned into the turbomachine blade through a suction port on the side of the blade that is characterized as the relatively low-pressure blade side. As with the fluid injection technique, the mass flow rate of the fluid suctioned into the blade is here selected to reduce the momentum deficit of the wake to correspondingly increase the time-mean velocity of the wake and decrease the turbulent velocity fluctuations of the wake; reduction of both propagating broad band and tonal acoustic components of noise produced by interaction of the blade wake with a turbomachine component downstream of the rotating blade is achieved with this suction technique. Blowing and suction techniques are also provided in the invention for reducing noise associated with the wake produced by fluid flow around a stationary blade upstream of a rotating turbomachine.
摘要翻译: 在本发明中,传播由叶片旋转时的涡轮机叶片产生的涡轮机叶片尾流与旋转叶片下游的涡轮机组件相互作用的噪声特性的宽带和音调声学分量被减小。 这是通过转子叶片中的端口将流体注入叶片尾流来实现的。 选择注入到叶片尾流中的流体的质量流率来减小尾流的动量差异,从而相应地增加尾流的时间平均速度并减小尾流的湍流速度波动。 通过这种流体注射,实现了通过叶片尾流与旋转叶片下游的涡轮机组件的相互作用产生的噪声的传播宽带和音调声学分量的减小。 在进一步的降噪技术中,边界层流体通过叶片侧面的抽吸口被吸入涡轮机叶片,其特征在于相对低压叶片侧。 与流体注入技术一样,这里选择吸入叶片的流体的质量流量来减少尾流的动量不足,从而相应地增加尾流的时间平均速度并减小尾流的湍流速度波动; 通过这种抽吸技术实现了通过叶片尾流与旋转叶片下游的涡轮机组件的相互作用产生的噪声的传播宽带和音调声分量的减小。 本发明还提供了吹气和抽吸技术,用于减少与在旋转涡轮机上游的固定叶片周围的流体流动产生的尾迹相关联的噪音。
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公开(公告)号:US06592216B2
公开(公告)日:2003-07-15
申请号:US09891776
申请日:2001-06-25
IPC分类号: B41J217
CPC分类号: B41J2/055 , B41J2/14233 , B41J2002/14419
摘要: Acoustic filters for use in an ink jet print head are disclosed. The ink jet print head defines a plurality of operating plates held together in a superimposed relationship forming an ink jet print head defining a plurality of ink manifolds, ink inlets, ink drop-forming orifices and a plurality of acoustic filters. The acoustic filters are a plurality of compliant areas connected by an acoustic filter constriction aperture and a plurality of separate compliant areas all connected to ink manifolds for suppressing unwanted frequencies during print modes.
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