Apparatus for regulating the idling rpm of internal combustion engines
    2.
    发明授权
    Apparatus for regulating the idling rpm of internal combustion engines 失效
    用于调节内燃机空转转速的装置

    公开(公告)号:US4441471A

    公开(公告)日:1984-04-10

    申请号:US313074

    申请日:1981-10-19

    CPC classification number: F02D41/08 F02D31/003 F02D41/086 Y10T477/68

    Abstract: An apparatus is proposed for regulating the idling rpm of internal combustion engines with externally supplied ignition. The apparatus includes a comparison circuit for set-point and actual rpm, and the idling rpm set-point value can be influenced in accordance with the actual rpm, time, operating voltage, temperature, and other variables as needed. The actual regulation is effected by means of a PID-regulator, whose individual characteristics may be established for processing data as desired, preferably in accordance with the rpm deviation. A limitation regulator furthermore serves to establish the respective maximum and/or minimum limitation of the adjustment member in accordance with operating characteristics.

    Abstract translation: 提出了一种用于通过外部提供的点火来调节内燃机的空转转速的装置。 该装置包括用于设定点和实际rpm的比较电路,并且可以根据实际的rpm,时间,工作电压,温度和其他变量根据需要影响怠速转速设定值。 实际的调节是通过PID调节器进行的,PID调节器可根据需要建立其各自的特性来处理数据,优选地根据转速偏差。 限制调节器还用于根据操作特性建立调节构件的相应的最大和/或最小限制。

    Flow rate meter with temperature dependent resistor
    3.
    发明授权
    Flow rate meter with temperature dependent resistor 失效
    具有温度依赖电阻的流量计

    公开(公告)号:US4213335A

    公开(公告)日:1980-07-22

    申请号:US913138

    申请日:1978-06-06

    CPC classification number: G01F1/696 G01F1/692

    Abstract: A flow rate meter for measuring the flow rate of a fluid medium, especially that of the air aspirated by an internal combustion engine. A hot wire or film is placed in the air stream and is made part of an electrical circuit powered by the output of a differential amplifier. The voltage drop across the resistor is monitored at the input of the differential amplifier where it is compared with fixed or compensated values. In order to reduce the effect that airborne particles, which are deposited on the hot wire or film, have on the measuring characteristics of the apparatus, the wire or film are shaped so that their leading edge constitutes an area much smaller than the surfaces which are substantially parallel to the stream lines.

    Abstract translation: 一种流量计,用于测量流体介质的流量,特别是由内燃机吸入的空气的流量。 热线或薄膜放置在空气流中,并被制成由差分放大器的输出端供电的电路的一部分。 在差分放大器的输入端监测电阻上的电压降,并将其与固定或补偿值进行比较。 为了减少沉积在热丝或薄膜上的空气中的颗粒对设备的测量特性的影响,导线或薄膜的形状使其前缘构成的面积远小于 基本上平行于流线。

    Flow rate meter with temperature-dependent resistor
    4.
    发明授权
    Flow rate meter with temperature-dependent resistor 失效
    带温度依赖电阻的流量计

    公开(公告)号:US4210016A

    公开(公告)日:1980-07-01

    申请号:US935056

    申请日:1978-08-18

    CPC classification number: G01F1/6842 G01F1/40 G01F15/00

    Abstract: A flow rate measuring device, especially for measuring the flow rate of incoming fresh air in the induction tube of an internal combustion engine in which a temperature-dependent sensor, e.g. a resistor, is exposed to the air flow while the current through the sensor is controlled and monitored to obtain a signal related to the air flow rate. In order to prevent damage to the sensor from high-temperature flame fronts due to backfiring and also from inadvertent mechanical contact with tools, etc., there is provided at least one protective element downstream of the sensor and possibly another element upstream. The protective element is a plate-like barrier permitting essentially unimpeded air flow. The pattern of the element may be a grid or sieve, a honeycomb pattern or a plurality of parallel tubes.

    Abstract translation: 一种流量测量装置,特别是用于测量内燃机的感应管中进入的新鲜空气的流量的流量测量装置,其中依赖于温度的传感器,例如, 电阻器暴露于空气流中,同时控制和监测通过传感器的电流以获得与空气流量相关的信号。 为了防止由于背热引起的高温火焰前沿传感器的损坏以及由于与工具等的无意的机械接触而在传感器的下游和可能的另一个元件上游提供至少一个保护元件。 保护性元件是板状屏障,其基本上不受阻碍的空气流动。 元件的图案可以是网格或筛子,蜂窝图案或多个平行管。

    TV system for transmission electron microscopes
    5.
    发明授权
    TV system for transmission electron microscopes 失效
    电视系统用于透射电子显微镜

    公开(公告)号:US4739399A

    公开(公告)日:1988-04-19

    申请号:US82273

    申请日:1987-08-06

    CPC classification number: H01J37/224

    Abstract: A device comprising a television camera mounted inside the projection chamber of a transmission electron microscope with the imaging surface perpendicular to the optical axis of the microscope. The electron image is converted to a light image by high efficiency YAG transmission scintillator and transferred by a low loss fiber optic plate to a CCD imaging device. The camera is moved by a pneumatic piston between the operating position where it intercepts the electron beam and a position where the electron beam can pass unobstructed to the main microscope viewing screen.

    Abstract translation: 一种装置,包括安装在透射电子显微镜的投影室内的成像表面垂直于显微镜的光轴的电视摄像机。 电子图像通过高效YAG透射闪烁体转换成光图像,并通过低损耗光纤板转移到CCD成像装置。 摄像机通过气动活塞在其拦截电子束的操作位置和电子束能够通过到主显微镜观察屏幕的位置之间移动。

    Anti-drift device for side entry electron microscope specimen holders
    6.
    发明授权
    Anti-drift device for side entry electron microscope specimen holders 失效
    侧入电子显微镜样品架的防漂移装置

    公开(公告)号:US4703181A

    公开(公告)日:1987-10-27

    申请号:US848970

    申请日:1986-04-07

    CPC classification number: H01J37/20

    Abstract: A device interposed between an electron microscope specimen holder and a microscope translation stage constructed of a special combination of materials arranged in such a manner that little or no specimen drift occurs when the temperature of the complete assembly is changed. In the first and more common arrangement, the device is placed in the nose of the standard microscope specimen holder and consists of a silica rod inside a metal tube, the material of the tube having a larger coefficient of thermal expansion than the material of the specimen rod. In the second, and less common arrangement the device is placed on the opposite side of the specimen away from the nose of the holder and consists of one tube, the material of which must have a larger coefficient of thermal expansion than the material of the specimen holder.

    Abstract translation: 插入在电子显微镜样品架和显微平移台之间的装置,其由以完全组装件的温度改变很少或没有样品漂移发生的方式布置的材料的特殊组合构成。 在第一和更常见的布置中,将装置放置在标准显微镜样品架的鼻部,并由金属管内的二氧化硅棒组成,该管的材料具有比样品材料更大的热膨胀系数 竿。 在第二个较不常见的布置中,该装置被放置在离开保持器的鼻部的试样的相对侧上,并且由一个管组成,其中一个管的材料必须具有比试样的材料更大的热膨胀系数 持有人

    Apparatus for preventing control oscillations in a combustion mixture
generator
    7.
    发明授权
    Apparatus for preventing control oscillations in a combustion mixture generator 失效
    用于防止燃烧混合物发生器中的控制振荡的装置

    公开(公告)号:US4156412A

    公开(公告)日:1979-05-29

    申请号:US804833

    申请日:1977-06-08

    Applicant: Bernd Kraus

    Inventor: Bernd Kraus

    CPC classification number: F02D41/1479 F02D41/1482

    Abstract: A circuit to be used in association with a fuel mixture control system which includes an oxygen sensor in the exhaust system to determine the relative richness of the combustible mixture. When the engine operates at low speeds, its control response time becomes large due to decreased engine throughput. In order to prevent control oscillations from occcurring under these conditions, the time constant of integration of the oxygen sensor control loop is changed to accommodate to the longer engine response time. For this purpose, the zero crossings of the oxygen sensor signal are compared with the unstable time constant of a multivibrator and a transistor which normally shunts a timing resistor is blocked, thereby increasing the time constant of the control integrator.

    Abstract translation: 与燃料混合物控制系统相关联使用的电路,其包括排气系统中的氧传感器,以确定可燃混合物的相对丰富度。 当发动机低速运转时,由于发动机产量的降低,其控制响应时间变大。 为了防止在这些条件下的控制振荡,氧传感器控制回路的积分时间常数被改变以适应较长的发动机响应时间。 为此,氧传感器信号的过零点与多谐振荡器的不稳定时间常数进行比较,并且正常分流定时电阻器的晶体管被​​阻塞,从而增加了控制积分器的时间常数。

    Fuel injection system
    8.
    发明授权
    Fuel injection system 失效
    燃油喷射系统

    公开(公告)号:US4073269A

    公开(公告)日:1978-02-14

    申请号:US605852

    申请日:1975-08-19

    CPC classification number: F02D41/1481 F02D41/182

    Abstract: A fuel injection system for an internal combustion engine includes electromagnetic injection valves controlled by a fuel control unit which receives signals from a camshaft actuated switch, a position-dependent throttle transducer and an oxygen sensor. When the oxygen sensor changes output levels, the transmission of this information is delayed, by the action of a switching transistor controlled by a monostable multivibrator, for a period of time equal to the internal time constant of the multivibrator.

    Abstract translation: 用于内燃机的燃料喷射系统包括由燃料控制单元控制的电磁喷射阀,其接收来自凸轮轴致动开关,位置相关节气门换能器和氧传感器的信号。 当氧传感器改变输出电平时,通过由单稳态多谐振荡器控制的开关晶体管的作用延迟该信息的传输时间等于多谐振荡器的内部时间常数。

    Method and apparatus for RPM limitation in internal combustion engines
    9.
    发明授权
    Method and apparatus for RPM limitation in internal combustion engines 失效
    内燃机转速限制的方法和装置

    公开(公告)号:US4058106A

    公开(公告)日:1977-11-15

    申请号:US679379

    申请日:1976-04-22

    CPC classification number: F02D41/0205

    Abstract: The maximum speed of an internal combustion engine is limited by a device which compares the period of rpm-synchronous pulses with the time constant of a reference multivibrator. If the engine rpm is so high that a pulse terminates prior to expiration of the reference time period, a gate is activated and acts through further multivibrator circuits to interrupt the fuel delivery to the engine, e.g., the fuel injection control pulses are suppressed. If the maximum rpm is exceeded only intermittently, the device restores normal fuel injection control pulses after a predetermined number of pulses has been suppressed. If the maximum rpm is exceeded continuously, the device restores normal fuel control somewhat later than the time at which the engine speed drops to below maximum rpm.

    Abstract translation: 内燃机的最大速度由比较转速同步脉冲的周期与参考多谐振荡器的时间常数的装置来限制。 如果发动机转速如此高以致在基准时间段期满之前脉冲终止,则门被激活并通过进一步的多谐振荡器电路作用,以中断向发动机的燃料输送,例如燃料喷射控制脉冲被抑制。 如果仅间歇地超过最大转速,则在预定数量的脉冲被抑制之后,装置恢复正常的燃料喷射控制脉冲。 如果连续超过最大转速,设备会比发动机转速下降到最大转速以下的时间稍晚恢复正常的燃油控制。

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