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1. 发明授权

US5033293A Alcohol concentration detecting device 失效
标题翻译：酒精浓度检测装置
公开(公告)号：US5033293A
公开(公告)日：1991-07-23
申请号：US491175
申请日：1990-03-09
申请人： Masahiro Honma , Fumio Hagi , Yukihiro Niide , Takenosuke Sano , Koji Iwahashi
发明人： Masahiro Honma , Fumio Hagi , Yukihiro Niide , Takenosuke Sano , Koji Iwahashi
IPC分类号： G01N27/22 , G01N33/28
CPC分类号： G01N33/2852 , G01N27/221
摘要： An alcohol concentration detecting device is disclosed, which comprises an alcohol sensor of capacitance type having a probe portion which is to be submerged in an alcohol-mixed fuel, the alcohol sensor issuing an output signal which varies in accordance with the concentration of alcohol in the alcohol-mixed fuel; a first oscillating circuit which receives the output signal of the alcohol sensor and issues a variable pulse signal whose duty ratio is variable in accordance with the output signal; a second oscillating circuit which issues a reference pulse signal, the reference pulse signal being the same as the pulse signal which is provided by the first oscillating circuit when there is no alcohol in the fuel; and an alcohol concentration detecting circuit which receives and compares the variable pulse signal and the reference pulse signal and issues an alcohol concentration representing signal which is variable in accordance with a difference in duty ratio between the variable pulse signal and the reference pulse signal.
摘要翻译：公开了一种酒精浓度检测装置，其包括电容型酒精传感器，其具有要浸没在醇混合燃料中的探针部分，所述醇传感器发出根据酒精浓度变化的输出信号酒精混合燃料; 第一振荡电路，其接收所述醇传感器的输出信号，并发出其占空比根据所述输出信号而变化的可变脉冲信号; 发出参考脉冲信号的第二振荡电路，所述参考脉冲信号与在所述燃料中不存在醇时由所述第一振荡电路提供的脉冲信号相同; 以及酒精浓度检测电路，其接收并比较可变脉冲信号和参考脉冲信号，并发出根据可变脉冲信号和参考脉冲信号之间的占空比的差异可变的酒精浓度表示信号。

2. 发明授权

US5070267A Low-noise electric motor assembly for automotive blower 失效
标题翻译：汽车风机低噪声电动机总成
公开(公告)号：US5070267A
公开(公告)日：1991-12-03
申请号：US482938
申请日：1990-02-21
申请人： Takenosuke Sano , Keiichi Koike , Hajime Sato , Toshihiro Kimura , Yutaka Enokido
发明人： Takenosuke Sano , Keiichi Koike , Hajime Sato , Toshihiro Kimura , Yutaka Enokido
IPC分类号： F04D27/00 , B60H1/00 , H02K9/06 , H02K9/22 , H02K11/00 , H02K11/02 , H02K11/04 , H02K23/66
CPC分类号： B60H1/00828 , H02K11/022 , H02K11/044 , H02K23/66 , H02K9/06
摘要： An electric motor assembly for driving an air blower is disclosed. The assembly comprises a casing of metal, the casing having opposed open ends closed by respective covers of metal; a rotation shaft rotatably disposed in the casing, the rotation shaft having one end exposed to the outside through an opening formed in one of the covers, the one end being adapted to connect to a fan of the air blower; a plurality of magnets installed in the casing and circumferentially surrounding the rotation axis; an armature mounted to the rotation shaft to rotate therewith; a commutator mounted to the rotation shaft and electrically connected with the armature; brushes operatively contacting with the commutator and supported by the casing; and an electric power feeding device for feeding the brushes with an electric power. A pulse width modulating device is further employed which is electrically connected with the power feeding device for modulating the electric power by means of a pulse width modulation method. The pulse width modulating device is installed in the casing for radio noise suppression.
摘要翻译：公开了一种用于驱动鼓风机的电动机组件。该组件包括金属壳体，壳体具有由相应的金属盖封闭的相对开口端; 旋转轴可旋转地设置在壳体中，旋转轴的一端通过形成在一个盖中的开口暴露于外部，一端适于连接到鼓风机的风扇; 多个磁体，其安装在壳体中并周向围绕旋转轴线; 安装到旋转轴以与其一起旋转的电枢; 一个安装在旋转轴上并与电枢电连接的换向器; 电刷与换向器可操作地接触并由壳体支撑; 以及用于向电刷供给电刷的供电装置。进一步采用脉冲宽度调制装置，其与供电装置电连接，用于通过脉宽调制方法调制电力。脉宽调制装置安装在用于无线电噪声抑制的壳体中。

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