公开(公告)号：US4521153A

公开(公告)日：1985-06-04

申请号：US426203

申请日：1982-09-28

申请人： Masao Morimoto ,  Shoji Sano ,  Kazuyoshi Yoshimi ,  Kazuo Saitou

发明人： Masao Morimoto ,  Shoji Sano ,  Kazuyoshi Yoshimi ,  Kazuo Saitou

IPC分类号： F04D25/10 ,  F04D29/56 ,  F01B25/02

CPC分类号： F04D25/10 ,  F04D25/105 ,  F04D29/56

摘要： Herein disclosed is a blower which comprises a fan, means for driving said fan, a body housing or guard mounting said fan therein, a wind deflector mounted in the front opening of said body so that it can rotate in said front opening, and a rear guard mounted in the rear opening of said body. Said wind deflector is formed with changing vanes which are made receptive of the air wind generated by said fan for imparting a rotational force to said wind deflector. Moreover, the changing vanes are made at least partially so movable that they can be adjusted to have an arbitrary vane angle for changing a rotating speed on a rotating direction of said wind deflector.

摘要翻译： 这里公开了一种鼓风机，其包括风扇，用于驱动所述风扇的装置，将所述风扇安装在其中的主体外壳或防护件，安装在所述主体的前开口中以使其能够在所述前开口中旋转的导风板， 防护罩安装在所述主体的后开口。 所述挡风板形成有变化的叶片，其接收由所述风扇产生的空气风，用于向所述导风板施加旋转力。 此外，变化的叶片被制成至少部分地可移动，使得它们可以被调节成具有用于改变所述导风板的旋转方向上的转速的任意叶片角度。

公开(公告)号：US4455674A

公开(公告)日：1984-06-19

申请号：US349340

申请日：1982-02-16

申请人： Shoji Sano

发明人： Shoji Sano

IPC分类号： H03G5/24 ,  H04B1/16 ,  H04H5/00

CPC分类号： H03G5/24

摘要： In an AM radio signal receiver, the value of Q of the input tuning circuit is varied in accordance with information indicative of the magnitude of the received signal. This information may be derived from the intermediate frequency (IF) signal processing stage of a superheterodyne receiver. In such a case, the IF signal is applied to a narrow-band filter having a pass band which is narrower than that of the IF signal processing stage. The amplitude of the output signal from the narrow-band filter is then detected to control a variable resistance element which is connected in parallel with winding of an input tuning coil so that the value of Q of the input tuning circuit is lowered when receiving a broadcasting signal having relatively high intensity. The invention may be adapted to an AM stereo receiver. In this case, the variable resistance element is controlled by both a signal indicative of the amplitude of the received signal and a signal indicating that the received signal is a stereo signal.

摘要翻译： 在AM无线电信号接收机中，输入调谐电路的Q值根据指示接收信号幅度的信息而变化。 该信息可以从超外差接收机的中频（IF）信号处理级导出。 在这种情况下，IF信号被施加到具有比IF信号处理级窄的通带的窄带滤波器。 然后检测来自窄带滤波器的输出信号的振幅，以控制与输入调谐线圈的绕组并联连接的可变电阻元件，使得当接收广播时输入调谐电路的Q值降低 信号具有较高的强度。 本发明可适用于AM立体声接收机。 在这种情况下，可变电阻元件由指示接收信号的幅度的信号和表示接收信号是立体声信号的信号两者来控制。