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21. 发明授权

US5987968A Automotive evaporative emission leak detection system module 失效
标题翻译：汽车蒸发排放物泄漏检测系统模块
公开(公告)号：US5987968A
公开(公告)日：1999-11-23
申请号：US037783
申请日：1998-03-10
申请人： John Cook , Craig A. Weldon , Paul D. Perry , Raymond Rasokas
发明人： John Cook , Craig A. Weldon , Paul D. Perry , Raymond Rasokas
IPC分类号： F02M25/08 , G01M3/20 , F02M37/04
CPC分类号： F02M25/0836 , F02M25/0818 , F02M2025/0845
摘要： A module for an on-board evaporative emission leak detection system that detects leakage from an evaporative emission space of a fuel system of an automotive vehicle. A housing provides an inlet port, an outlet port, and a flow path between the inlet port and the outlet port. An electric-motor-operated impeller pump causes flow in one direction along the flow path when in a pumping mode of operation. The pump is open to flow in both the one direction and an opposite direction when in a non-pumping mode. A solenoid-operated valve is disposed in the flow path to block flow through the flow path when in a blocking mode and to pass flow through the flow path when in a passing mode. A pressure switch is exposed to the flow path at the outlet port. A lead frame assembly provides respective electric circuit connections to the motor, solenoid, and pressure switch.
摘要翻译：一种用于检测来自机动车辆的燃料系统的蒸发排放空间的泄漏的车载蒸发排放泄漏检测系统的模块。壳体提供入口，出口以及入口和出口之间的流动路径。当处于泵送操作模式时，电动马达叶轮泵沿着流动路径沿一个方向流动。当处于非泵送模式时，泵打开以在一个方向和相反方向上流动。当处于阻挡模式时，电磁阀设置在流动路径中以阻止通过流动路径的流动，并且当处于通过模式时通过流动通道流动。压力开关暴露在出口处的流动路径上。引线框架组件为电动机，螺线管和压力开关提供相应的电路连接。

22. 发明授权

US5977666A Electric motor having brush noise absorption system 失效
标题翻译：电机具有刷噪声吸收系统
公开(公告)号：US5977666A
公开(公告)日：1999-11-02
申请号：US102929
申请日：1998-06-23
申请人： Marek Horski , Haran K. Periyanthamby , Peter A. Kershaw
发明人： Marek Horski , Haran K. Periyanthamby , Peter A. Kershaw
IPC分类号： H01R39/38 , H02K5/14 , H02K5/24
CPC分类号： H01R39/38 , H02K5/146 , H02K5/24
摘要： An ultra quiet electric motor includes a drive shaft, bearing structure rotatably supporting the drive shaft, and an armature assembly and commutator each fixed on the drive shaft. A motor housing is disposed around the armature assembly and has an open end portion. A permanent magnet structure is disposed between the motor housing and the armature. Brush structure is provided having a pair of brush support arms each guiding a generally crescent-shaped brush. Each of the brushes contacts the commutator. A noise absorbing housing is defined by a plurality of walls and is disposed generally around the brush structure. Noise absorption material covers at least a portion of at least one of the walls of the noise absorbing housing. An end cap is fixed to the motor housing to close the open end portion thereof. The structure of the motor is such that during operation, a decibel rating of approximately 32 dbA is generated.
摘要翻译：一种超静音电动机包括驱动轴，可旋转地支撑驱动轴的轴承结构以及各自固定在驱动轴上的电枢组件和换向器。电动机壳体设置在电枢组件周围并且具有开口端部分。永磁体结构设置在电动机壳体和电枢之间。提供刷结构，其具有一对刷支撑臂，每个刷支撑臂引导大致月牙形刷。每个刷子都与换向器接触。噪声吸收壳体由多个壁限定，并且大致围绕刷结构设置。噪声吸收材料覆盖噪声吸收壳体的至少一个壁的至少一部分。端帽固定在马达壳体上以封闭其开口端部。电动机的结构使得在操作期间产生约32dbA的分贝等级。

23. 发明授权

US5974861A Vapor leak detection module having a shared electromagnet coil for operating both pump and vent valve 失效
标题翻译：具有用于操作泵和排气阀的共用电磁线圈的蒸汽泄漏检测模块
公开(公告)号：US5974861A
公开(公告)日：1999-11-02
申请号：US65956
申请日：1998-04-24
申请人： John E. Cook , Paul D. Perry
发明人： John E. Cook , Paul D. Perry
IPC分类号： F02M25/08 , F02M37/04 , G01M3/20
CPC分类号： F02M25/0818
摘要： A module for an on-board evaporative emission leak detection system that detects leakage from an evaporative emission space of a fuel system of an automotive vehicle. Interior space of the module's enclosure is communicated to atmosphere. A pump is disposed within space and has an inlet communicated to the interior space and a flow passage at its outlet to allow the pump to create pressure in the evaporative emission space suitable for performance of a leak test. A vent valve is disposed within space and is selectively operable to vent and not vent the flow passage to space. An electromagnet actuator has a single electric coil that operates both the pump and the vent valve by cantilever-mounted armatures responsive to electric control current in the coil having a first current component for controlling the pump and a second current component for controlling the vent valve.
摘要翻译：一种用于检测来自机动车辆的燃料系统的蒸发排放空间的泄漏的车载蒸发排放泄漏检测系统的模块。模块外壳的内部空间通向大气。泵设置在空间内并且具有连通到内部空间的入口和在其出口处的流动通道，以允许泵在适于进行泄漏测试的蒸发发射空间中产生压力。排气阀设置在空间内并且可选择性地操作以排出并且不将流动通道排放到空间。电磁致动器具有单个电线圈，其响应于具有用于控制泵的第一电流分量的线圈中的电控制电流和用于控制排气阀的第二电流分量，通过悬臂安装的电枢来操作泵和排气阀。

24. 发明授权

US5957661A High efficiency to diameter ratio and low weight axial flow fan 失效
标题翻译：高效直径比和低重量轴流风机
公开(公告)号：US5957661A
公开(公告)日：1999-09-28
申请号：US97972
申请日：1998-06-16
申请人： Alexander Graham Hunt , Hugo Capdevila , Bonifacio M. Castillo
发明人： Alexander Graham Hunt , Hugo Capdevila , Bonifacio M. Castillo
IPC分类号： F01D5/14 , F04D29/32 , F04D29/38 , B63H1/16 , B64C11/00 , F01D5/22
CPC分类号： F01D5/141 , F04D29/326 , F04D29/384
摘要： A high efficiency axial flow fan includes a hub, fan blades and a circular band. The hub rotates about a rotational axis when torque is applied from a shaft rotatably driven by a power source. The circular band is concentric with the hub, connected to the tip of each blade, and is spaced radially outward from the hub. The blades are configured to produce an airflow when rotated about the rotational axis. Each blade has a chord length distribution, stagger angle and dihedral distribution which varies along the length of the blade. The dihedral distance of each blade varies as a function of blade radius from the rotational axis.
摘要翻译：高效轴流风机包括轮毂，风扇叶片和圆形带。当从由电源可旋转地驱动的轴施加扭矩时，毂围绕旋转轴线旋转。圆形带与轮毂同心，连接到每个叶片的尖端，并且与轮毂径向向外间隔开。叶片被构造成当围绕旋转轴线旋转时产生气流。每个叶片具有沿叶片长度变化的弦长分布，交错角和二面分布。每个叶片的二面距离随着从旋转轴线的叶片半径的函数而变化。

25. 发明授权

US5949171A Divisible lamination brushless pump-motor having fluid cooling system 失效
公开(公告)号：US5949171A
公开(公告)日：1999-09-07
申请号：US100283
申请日：1998-06-19
申请人： Marek Horski , Peter A. Kershaw
发明人： Marek Horski , Peter A. Kershaw
IPC分类号： F04D13/06 , F04D29/58 , H02K1/02 , H02K3/30 , H02K5/12 , H02K9/19 , H02K3/46 , H02K1/18
CPC分类号： H02K9/19 , F04D13/064 , F04D29/5806 , F04D29/588 , H02K1/02 , H02K3/30 , H02K5/12 , Y10T29/49009
摘要： A brushless pump-motor has a pump housing having an impeller chamber with an impeller in the impeller chamber. A motor assembly is coupled to the pump housing. The motor assembly includes a stator assembly having a plurality of core members. A connecting structure couples the plurality of core members with respect to each other to form a generally annular core assembly such that adjacent core members are disposed in non-contacting relation. Windings are operatively associated with the core members. The stator assembly has an interior portion defining a rotor chamber and a rotor assembly is disposed in the rotor chamber. The connecting structure has a partition portion constructed and arranged to isolate the windings from the rotor chamber. A shaft is provided on which the rotor assembly and impeller are mounted. The shaft includes a hollow portion in open communication with the rotor chamber. Bearing structure is operatively associated with the hollow portion of the shaft for supporting the shaft for rotational movement. An electronic control unit is coupled to the motor assembly and has an upper surface in communication with the rotor chamber. A fluid flow path structure is constructed and arranged to permit fluid (1) to pass from a high pressure portion of the impeller chamber and enter the rotor chamber so that the rotor assembly may be submerged in the fluid, (2) to contact the upper surface of the electronic control unit to cool the electronic control unit, (3) to contact the core members, with the partition portion preventing the fluid from contacting the windings, and (4) to enter the hollow portion of the shaft to cool the bearing structure.

26. 发明授权

US5925999A Three-speed dual-winding direct current permanent magnet motor method and apparatus 失效
标题翻译：三速双绕组直流永磁电机的方法和装置
公开(公告)号：US5925999A
公开(公告)日：1999-07-20
申请号：US748644
申请日：1996-11-13
申请人： Andrew Lakerdas , Peter A. Kershaw , Oliver Stegelmann
发明人： Andrew Lakerdas , Peter A. Kershaw , Oliver Stegelmann
IPC分类号： H02K23/36 , H02P7/08 , H02P1/32
CPC分类号： H02P7/08 , H02K23/36
摘要： A direct current motor having a primary armature winding, a secondary armature winding and a switching circuit adapted to selectively energize the primary winding and the secondary winding to achieve three-speed motor operation is disclosed. The system is adapted to achieve a high speed of the motor by energizing only the primary winding, a medium speed of the motor by energizing only the secondary winding, and a low speed of the motor by energizing both the primary winding and the secondary winding. The system also includes a voltage source providing a direct current level voltage with respect to an electric ground and a switching circuit adapted to operate the motor. The switching circuit is coupled to the voltage supply for energizing the primary winding only to achieve a high speed, energizing only the secondary winding to achieve a medium speed, and energizing both the primary winding and the secondary winding in series with each other to achieve a low speed. A method of operating the motor also disclosed.
摘要翻译：公开了一种直流电动机，其具有主电枢绕组，次级电枢绕组和适于选择性地激励初级绕组和次级绕组以实现三速电动机操作的开关电路。该系统适于通过仅通过给次级绕组通电，通过仅通过次级绕组的通电来提供电动机的中速，以及通过使初级绕组和次级绕组通电来实现电动机的低速度。该系统还包括提供相对于电接地的直流电平电压的电压源和适于操作电动机的开关电路。开关电路被耦合到电压源，用于仅激励初级绕组以实现高速度，仅激励次级绕组以实现中等速度，并且使初级绕组和次级绕组两者彼此串联，以实现一个低速。还公开了一种操作电动机的方法。

27. 发明授权

US5905320A Housing for an ultra quiet electric motor 失效
标题翻译：超静音电机的外壳
公开(公告)号：US5905320A
公开(公告)日：1999-05-18
申请号：US947275
申请日：1997-10-08
申请人： Haran K. Periyathamby , Marek Horski
发明人： Haran K. Periyathamby , Marek Horski
IPC分类号： H02K5/24 , H02K5/00 , H02K5/04
CPC分类号： H02K5/24
摘要： A high speed electric motor for automotive applications that is designed to effectively minimize vibration of its component parts and thus suppress noise generated during its operation. The motor incorporates acoustic engineering principles including surface vibration control, acoustic radiation efficiency, active intensity field control and noise control using acoustic materials to reduce overall vibration of the motor components and the motor noise sensed by the passenger of the vehicle. A housing is disclosed for an electric motor of the type having an armature with an armature shaft and magnet means for inducing rotational movement of the armature shaft. The housing includes a housing member dimensioned to minimize noise energy and having a main body section with an internal chamber for at least partially accommodating the armature and the magnet means. The main body section defines an axial length and an internal cross-sectional dimension. The length is less than about 1.25 times the distance of the internal dimension. With this particular dimensional arrangement, the housing, in effect, desirably creates a reactive intensity field to at least partially counteract an active intensity field generated during operation. In a preferred embodiment, the axial length of the housing member ranges from about 0.50 to about 0.80 times the distance of the internal dimension to create the desired reactive field.
摘要翻译：用于汽车应用的高速电动机被设计成有效地最小化其部件的振动并因此抑制其操作期间产生的噪声。电动机包括声学工程原理，包括表面振动控制，声辐射效率，主动强度场控制和使用声学材料的噪声控制，以减少电动机部件的总体振动和车辆乘客感测到的电动机噪声。公开了一种用于具有电枢的电枢的电动机的壳体和用于引起电枢轴的旋转运动的磁体装置。壳体包括壳体构件，其尺寸被设计成使噪声能量最小化并且具有主体部分，该主体部分具有用于至少部分地容纳电枢和磁体装置的内部腔室。主体部分限定轴向长度和内部横截面尺寸。长度小于内部尺寸距离的约1.25倍。利用这种特定的尺寸布置，壳体实际上希望产生反作用强度场以至少部分地抵消在操作期间产生的有效强度场。在优选实施例中，壳体构件的轴向长度为内部尺寸的距离的大约0.50至大约0.80倍以产生所需的反应场。

28. 发明授权

US5901690A Electromagnetic actuated exhaust gas recirculation valve 失效
标题翻译：电磁致动排气再循环阀
公开(公告)号：US5901690A
公开(公告)日：1999-05-11
申请号：US923393
申请日：1997-09-03
申请人： Scott E. W. Hussey , Allan Tamman
发明人： Scott E. W. Hussey , Allan Tamman
IPC分类号： F02M25/07 , F16K31/06 , F02B47/08 , F16K31/02
CPC分类号： F16K31/0693 , F02M26/53 , F02M26/67 , F02M26/68
摘要： An automotive emission control valve including a body having an internal main flow passage between a first port and a second port, a valve seat circumscribing a transverse cross-sectional area of the passage, a valve member including a non-flow-through valve head, an electromagnetic actuator providing a magnetic circuit path that includes an armature for operating the valve member to selectively seat and unseat the valve head on and from the valve seat. The armature comprising a unitary ferromagnetic member having an axial end which contains a walled hole that extends interiorly of the ferromagnetic member and ends at a surface of a transverse wall of the ferromagnetic member. The valve member including a valve stem having a free distal end. The valve further including a locator which is joined to the free distal end of the valve stem. The locator bearing against the surface of the transverse wall.
摘要翻译：一种车辆排放控制阀，包括：主体，其具有在第一端口和第二端口之间的内部主流动通道;外部限定通道的横截面积的阀座;包括非流通阀头的阀构件; 提供磁路的电磁致动器，其包括用于操作阀构件的衔铁，用于选择性地将阀头安置在阀座上并将其从阀座上取下。电枢包括具有轴向端部的单一铁磁构件，该轴向端部包含在铁磁构件的内部延伸并且在铁磁构件的横向壁的表面处终止的壁孔。阀构件包括具有自由远端的阀杆。阀还包括定位器，该定位器连接到阀杆的自由远端。定位器抵靠横向壁表面。

29. 发明授权

US5868120A Fuel vapor management system for motor vehicles 失效
标题翻译：汽车燃油蒸汽管理系统
公开(公告)号：US5868120A
公开(公告)日：1999-02-09
申请号：US884250
申请日：1997-06-30
申请人： Richard J. Van Wetten , John Edward Cook , Ronald Hunter
发明人： Richard J. Van Wetten , John Edward Cook , Ronald Hunter
IPC分类号： B60K15/01 , B60K15/03 , B60K15/035 , F02M25/08 , F02M37/20 , F02M33/04
CPC分类号： B60K15/03504
摘要： When a tank filler tube cap is closed, several flow paths having solenoid-operated valves are selectively operated by an engine management computer to control pressurizing of a bladder disposed in a fuel tank and of surrounding fuel vapor space not occupied by the bladder to attenuate fuel vapor generation. Venting of the bladder to atmosphere and of the vapor headspace to a canister are also controlled. The control further regulates the pressure in the bladder relative to that in the vapor headspace. On-board testing for leakage can be automatically accomplished for ascertaining compliance with relevant regulations. When the tank is to be re-fueled, a signal is sent to the computer. If conditions, as sensed by certain sensors, are appropriate, the computer unlatches an access door to the filler tube cap so that upon removal of the cap, no significant pressure differential that might cause vapor to be expelled from the tank to atmosphere, or impede the filling of the tank with fuel from the nozzle, is present. As liquid fuel is dispensed into the tank, the combined volumes of the bladder and the tank vapor headspace are reduced by the volume of liquid fuel introduced into the tank. The headspace cannot be re-pressurized until the cap again closes the filler tube.
摘要翻译：当一个储罐加油管盖关闭时，具有电磁阀的若干流动路径由发动机管理计算机选择性地操作，以控制设置在燃料箱中的气囊的加压，以及周围未被膀胱占据的燃料蒸汽空间以减少燃料蒸汽发生。也可以控制气囊向大气和蒸汽顶部空间排放到罐中。该控制进一步调节膀胱相对于蒸汽顶部空间中的压力。可以自动完成板载泄漏测试，以确定是否符合相关规定。当坦克要重新加油时，会将信号发送到计算机。如果由某些传感器感测到的条件是适当的，则计算机将进入门解锁到加注管盖，使得在移除盖时，没有明显的压差可能导致蒸气从罐排出到大气中，或阻碍存在来自喷嘴的燃料从罐中的填充。当液体燃料分配到罐中时，气囊和罐蒸汽顶部空间的组合体积通过引入罐中的液体燃料的体积而减小。顶盖不能重新加压，直到盖再次关闭加注管。

30. 发明授权

US11536174B2 Acoustic damper for gas turbine combustors with orthogonal slots 有权
公开(公告)号：US11536174B2
公开(公告)日：2022-12-27
申请号：US16632147
申请日：2018-07-19
申请人： PRESIDENT AND FELLOWS OF HARVARD COLLEGE , SIEMENS CANADA LIMITED
发明人： Katia Bertoldi , Farhad Javid , Genevieve Bourgeois , François-Xavier Jette , Minh Quan Pham , Ali Shanian , Megan Schaenzer
IPC分类号： F01N1/02 , F01N1/04 , F01N1/10 , F02C7/24
摘要： An acoustic damper includes a low porosity layer section and a housing. The low porosity layer section is formed in a liner of a gas turbine combustor and has an arrangement of elongated generally S-shaped slots formed therein. The housing has a plurality of feed apertures. The housing is coupled to the low porosity layer section thereby defining a cavity such that air outside the housing is configured to flow through the apertures and through the elongated generally S-shaped slots in the low porosity layer section, thereby transforming acoustic energy into thermal energy and aiding in providing an acoustic dampening effect for the gas turbine combustor during operation thereof.

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