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    • 8. 发明授权
    • Side channel blower
    • 侧通风机
    • US4992021A
    • 1991-02-12
    • US439456
    • 1989-11-20
    • Herbert LangenPeter SteinerHelmut Keinert
    • Herbert LangenPeter SteinerHelmut Keinert
    • F01N3/025F01N3/30F04D23/00
    • F04D23/008F01N3/025F01N3/30
    • A side channel blower, preferably for burners for cleaning soot particle filters mounted in exhaust gas lines of vehicles by burning off, is shown, in which a chamber housing (6) with a chamber (5) is arranged on the air discharge side, wherein air flows into said chamber from the side channel blower (1) and said chamber permits adjustable return of air from said chamber into the annular channel (8) via a bypass (12, 13) and return of additional air, also into said annular channel (2), via an air transfer channel (9) that can be closed with a valve (16), and the air delivered can be fed from said chamber to the filters for cleaning by burning off via two air discharge openings (8a, 8b), which can be closed such that one discharge opening is open and the other discharge opening is closed.
    • 一种侧通道鼓风机,优选用于通过燃烧来安装在车辆排气管线中的用于清洁烟灰颗粒过滤器的燃烧器,其中具有室(5)的室壳体(6)布置在排气侧,其中 空气从侧通道鼓风机(1)流入所述腔室,并且所述腔室允许空气经由旁路(12,13)从所述腔室可调节地返回到环形通道(8)中,并且还将附加空气返回到所述环形通道 (2)通过可以用阀(16)关闭的空气传输通道(9),并且输送的空气可以通过两个空气排出口(8a,8b)从所述室供给到用于清洁的过滤器 ),其可以被封闭,使得一个排出开口打开,另一个排出口关闭。
    • 9. 发明授权
    • Method of, and circuit arrangement for, function control of ultrasonic
alarm installations
    • 超声波报警装置的功能控制方法及电路装置
    • US4727522A
    • 1988-02-23
    • US783230
    • 1985-09-23
    • Peter SteinerRudolf GenahrDavid Siegwart
    • Peter SteinerRudolf GenahrDavid Siegwart
    • G08B13/18G01S7/52G01S15/52G08B29/14G08B13/16
    • G08B29/14G01S7/52004
    • In an ultrasonic alarm installation ultrasonic waves are continuously emitted into a monitored region and a frequency shift due to a moving object, e.g. an intruder, by virtue of the Doppler effect is evaluated for giving an alarm signal. The function control in this installation occurs during a test phase by means of brief aperiodic modulation of the emitted ultrasonic waves. The resulting brief frequency broadening generates in the same evaluating circuit a signal if the installation is functioning correctly. The time duration of the aperiodic modulation is selected to be so short that no standing waves can form, so that the function control can also work faultlessly if the installation, because of vectorial addition of the received ultrasonic waves, accidentally is in an insensitive state. Thus even coverings of the ultrasonic transmitter during a sabotage attempt can be recognized and distinguished from an insensitive state.
    • PCT No.PCT / EP85 / 00036 Sec。 371日期:1985年9月23日 102(e)1985年9月23日PCT 1985年2月7日PCT PCT。 公开号WO85 / 03590 日期为1985年8月15日。在超声波报警装置中,超声波被连续地发射到被监视的区域中,并且由于移动物体,例如, 通过多普勒效应评估入侵者给出报警信号。 这种安装中的功能控制通过对发射的超声波进行短暂的非周期性调制而在测试阶段发生。 如果安装正常工作,则产生的短暂的频率展宽在相同的评估电路中产生信号。 选择非周期性调制的持续时间非常短,从而不会形成驻波,使得由于接收到的超声波的向量加法意外地处于不敏感状态,所以功能控制也可以无故障地工作。 因此,在破坏尝试期间甚至可以识别超声波发射器的覆盖物并将其与不敏感状态区分开来。