公开(公告)号：US09190071B2

公开(公告)日：2015-11-17

申请号：US13618761

申请日：2012-09-14

Applicant: Donald J. Butts ,  William A. Welsh ,  Thomas A. Millott ,  Stuart K. Drost

Inventor： Donald J. Butts ,  William A. Welsh ,  Thomas A. Millott ,  Stuart K. Drost

IPC: G10K11/178 ,  G10L21/0208 ,  G10L21/0216

CPC classification number: G10L21/0208 ,  G10K2210/1081 ,  G10K2210/121 ,  G10K2210/128 ,  G10K2210/1281 ,  G10L21/0216 ,  G10L2021/02085

Abstract: A noise-suppression assembly of a mechanical drive system having a rotational frequency includes an audio filter unit configured to receive a first audio signal and a timing signal of the mechanical drive system. The audio filter unit generates a noise-cancellation signal based on a frequency of the timing signal to suppress a noise generated by the mechanical drive system and to apply the noise-cancellation signal to the first audio signal to produce a filtered first audio signal. The frequency of the timing signal is based on the rotational frequency of the mechanical drive system.

Abstract translation: 具有旋转频率的机械驱动系统的噪声抑制组件包括被配置为接收机械驱动系统的第一音频信号和定时信号的音频滤波器单元。 音频滤波器单元基于定时信号的频率产生噪声消除信号，以抑制由机械驱动系统产生的噪声，并将噪声消除信号施加到第一音频信号以产生经滤波的第一音频信号。 定时信号的频率基于机械驱动系统的转速。

公开(公告)号：US07648338B1

公开(公告)日：2010-01-19

申请号：US11521032

申请日：2006-09-14

Applicant: William A. Welsh

Inventor： William A. Welsh

IPC: B64C27/00

CPC classification number: B64C27/001 ,  B64C27/10 ,  B64C2027/7233 ,  B64C2027/7238 ,  Y02T50/34

Abstract: A dual, counter-rotating, coaxial rotor system provides individual control of an upper rotor system and a lower rotor system. The lower rotor control system and the upper rotor control system provide six controls or “knobs” to minimize or theoretically eliminate airframe vibration. In a dual, counter-rotating, coaxial rotor system, application of a HHC system to the two rotor systems individually but located on the common axis, will yield essentially complete vibration reduction because the 6 controls will suppress the 6 loads.

Abstract translation: 双转，反转同轴转子系统提供上转子系统和下转子系统的单独控制。 下转子控制系统和上转子控制系统提供六个控制或“旋钮”以最小化或理论上消除机身振动。 在双重反转旋转的同轴转子系统中，将HHC系统单独地应用于两个转子系统但位于公共轴上，将产生基本上完全的减振，因为6个控制将抑制6个负载。

公开(公告)号：US20090116963A1

公开(公告)日：2009-05-07

申请号：US12352676

申请日：2009-01-13

Applicant: William A. Welsh

Inventor： William A. Welsh

IPC: B64C27/51 ,  B64C27/32

CPC classification number: F16F15/145 ,  B64C27/001 ,  B64C2027/004 ,  F16F15/36 ,  Y10S416/50

Abstract: A method and device for reducing vibratory noise in a system with an integral rotating member includes independently operable drive systems for controlling the angular velocity of at least two independently rotatable masses. Control signals manipulate the drive system to rotate each mass at optimal speed, direction and phase to reduce noise induced in the system by the rotating member.

Abstract translation: 一种用于减小具有整体旋转构件的系统中的振动噪声的方法和装置包括用于控制至少两个可独立旋转的质量块的角速度的独立可操作的驱动系统。 控制信号控制驱动系统以最佳速度，方向和相位旋转每个质量块，以减少由旋转构件在系统中引起的噪音。

公开(公告)号：US5336794A

公开(公告)日：1994-08-09

申请号：US561850

申请日：1990-08-01

Applicant: James N. Pryor ,  James M. Bogdanor ,  William A. Welsh

Inventor： James N. Pryor ,  James M. Bogdanor ,  William A. Welsh

IPC: C11B3/10

CPC classification number: C11B3/10

Abstract: Impurities, which may include soaps, gums, phospholipids and pigments, can be removed from chemically or physically refined glyceride oils in a dual phase adsorption and treatment process. In the first phase, the oil is contacted with amorphous silica to remove phospholipids and soaps or gums or both. In the second phase, the oil is passed through a packed bed of a pigment removal agent for decolorizing glyceride oils.

Abstract translation: 可以在双相吸附和处理过程中从化学或物理精制的甘油酯油中除去杂质，其可以包括皂，树胶，磷脂和颜料。 在第一阶段，将油与无定形二氧化硅接触以除去磷脂和皂或两者。 在第二阶段，使油通过用于脱色甘油酯油的颜料去除剂的填充床。

公开(公告)号：US5310137A

公开(公告)日：1994-05-10

申请号：US870434

申请日：1992-04-16

Applicant: Charles A. Yoerkie, Jr. ,  William A. Welsh ,  Thomas W. Sheehy

Inventor： Charles A. Yoerkie, Jr. ,  William A. Welsh ,  Thomas W. Sheehy

IPC: B64C27/51 ,  B64C27/00 ,  F16F15/00 ,  F16F15/02 ,  G10K11/178

CPC classification number: F16F15/00 ,  B64C27/001 ,  B64C2220/00 ,  Y10T74/2186

Abstract: An active noise control (ANC) system for a helicopter that is operative to effectively nullify one or more high frequency vibrations emanating from the main transmission gearbox thereof at the gearbox/airframe interface, thereby significantly reducing the interior noise levels of the helicopter, that is design optimized to minimize the number of actuators required, and that is design optimized to minimize contamination forces arising from operation of the system actuators. The ANC system includes modified transmission beams that are mechanically stiffened to function as rigid bodies with respect to the one or more of the high frequency vibrations, a plurality of actuators disposed in combination with the modified transmission beams, a plurality of sensors disposed in combination with the modified transmission beams in a collinear, spaced apart functional correlation with respective actuators, and controllers interconnecting individual actuators with respective functionally correlated sensors.

Abstract translation: 一种用于直升机的主动噪声控制（ANC）系统，用于有效地消除在齿轮箱/机身接口处从其主变速箱发出的一个或多个高频振动，从而显着降低直升机的内部噪声水平，也就是说 优化的设计，以最小化所需的执行器的数量，并且这是优化的设计，以最小化由系统执行器的操作引起的污染力。 ANC系统包括机械加强以相对于高频振动中的一个或多个作为刚体的修改的传输梁，与修改的传输梁结合设置的多个致动器，多个传感器与 与各个致动器的共线，间隔的功能相关性的修改的透射束以及将各个致动器与相应的功能相关的传感器互连的控制器。

公开(公告)号：US5298638A

公开(公告)日：1994-03-29

申请号：US878944

申请日：1992-05-05

Applicant: Gabriella J. Toeneboehn ,  William A. Welsh

Inventor： Gabriella J. Toeneboehn ,  William A. Welsh

IPC: B01J20/10 ,  B01D15/00 ,  C11B3/10

CPC classification number: C11B3/10

Abstract: A process for removal of sulfur-containing compounds from fatty materials is disclosed, in which the fatty material is contacted with a silica hydrogel. Use of this adsorptive process prior to hydrogenation improves oil quality and decreases hydrogenation times.

Abstract translation: 公开了一种从脂肪材料中除去含硫化合物的方法，其中脂肪材料与二氧化硅水凝胶接触。 在氢化之前使用这种吸附方法可改善油质并减少氢化时间。

公开(公告)号：US4877765A

公开(公告)日：1989-10-31

申请号：US50998

申请日：1987-05-15

Applicant: James N. Pryor ,  James M. Bogdanor ,  William A. Welsh

Inventor： James N. Pryor ,  James M. Bogdanor ,  William A. Welsh

IPC: B01J20/10 ,  C11B3/10

CPC classification number: B01J20/103 ,  C11B3/10

Abstract: Acid-treated amorphous silica has superior properties for the removal of phospholipids and chlorophyll from glyceride oils. The acid-treated adsorbent comprises a high surface area amorphous silica on which is supported an acid having a pK.sub.a of about 3.5 or lower.

Abstract translation: 酸处理的无定形二氧化硅对于从甘油酯油中去除磷脂和叶绿素具有优异的性能。 酸处理的吸附剂包括高表面积无定形二氧化硅，其上负载有pKa为约3.5或更低的酸。

公开(公告)号：US4456693A

公开(公告)日：1984-06-26

申请号：US486089

申请日：1983-04-18

Applicant: William A. Welsh

Inventor： William A. Welsh

IPC: B01J29/12

CPC classification number: B01J29/126

Abstract: A stable, highly active hydrocracking catalyst which contains a rare earth/noble metal exchanged ultrastable type Y zeolite dispersed in an inorganic oxide matrix. The catalyst is hydrated to a moisture level of from about 5 to 30 percent by weight H.sub.2 O prior to activation and use in a hydrocracking process.

Abstract translation: 一种稳定的，高活性的加氢裂化催化剂，其含有分散在无机氧化物基质中的稀土/贵金属交换超稳Y型沸石。 催化剂在活化之前被水合至约5至30重量％的H 2 O的水分含量并用于加氢裂化过程中。

公开(公告)号：US08403643B2

公开(公告)日：2013-03-26

申请号：US12353217

申请日：2009-01-13

Applicant: William A. Welsh

Inventor： William A. Welsh

IPC: B64C27/00

CPC classification number: B64C27/001 ,  B64C2027/003 ,  F01D5/02 ,  F16F7/1011 ,  F16F15/223 ,  G01M1/36 ,  H02K7/04 ,  H02K7/14 ,  H02K16/02 ,  H02K41/025 ,  H02P5/56 ,  Y10T74/2121 ,  Y10T74/2127

Abstract: A vibration suppressor system includes an annular electric motor system which independently controls rotation of at least two masses about the axis of rotation to reduce in-plane vibration of the rotating system. A method of reducing vibrations in a rotary-wing aircraft includes independently controlling a relative angular position of a multiple of independently rotatable masses to reduce vibrations of a main rotor system.

Abstract translation: 一种振动抑制器系统包括环形电机系统，其独立地控制围绕旋转轴线的至少两个质量块的旋转，以减小旋转系统的平面内振动。 一种减少旋转翼飞行器中的振动的方法包括独立地控制多个可独立旋转的质量块的相对角位置，以减少主转子系统的振动。

公开(公告)号：US08038394B2

公开(公告)日：2011-10-18

申请号：US12015149

申请日：2008-01-16

Applicant: Brandon L. Stille ,  William A. Welsh ,  Timothy Fred Lauder

Inventor： Brandon L. Stille ,  William A. Welsh ,  Timothy Fred Lauder

IPC: F01D5/18

CPC classification number: B64C27/51 ,  Y10S416/50

Abstract: A rotor system includes a multiple of rotor blade yokes mounted to a rotor hub. A lead/lag damper is mounted to each of the rotor blade yokes and to a damper hub. An actuator system is operable to shift a damper hub axis of rotation relative the rotor axis of rotation to minimize 1P damper motions. A method of minimizing 1P damper motions within a rotor system includes shifting the damper hub axis of rotation relative the rotor axis of rotation to oscillate an inner connector of each lead/lag damper in phase with a 1P blade motion to minimize the 1P motion of the damper.

Abstract translation: 转子系统包括安装到转子毂的转子叶片轭的多个。 引导/滞后阻尼器安装到每个转子叶片轭和阻尼器毂上。 致动器系统可操作以相对于转子旋转轴线转动减震器轮毂的旋转轴线，以最小化1P阻尼器运动。 使转子系统内的1P阻尼器运动最小化的方法包括相对于转子旋转轴线转动阻尼器轮毂轴线，以使每个引导/滞后阻尼器的内部连接器以1P叶片运动相位相位最小化，以使 阻尼器。