Device for measuring variable with automatic compensation for offset
    36.
    发明授权
    Device for measuring variable with automatic compensation for offset 失效
    用于测量变量的装置,具有自动补偿补偿

    公开(公告)号:US4672566A

    公开(公告)日:1987-06-09

    申请号:US442291

    申请日:1982-11-17

    IPC分类号: G01D3/02 G01K3/08 G01K19/00

    CPC分类号: G01D3/022 G01K3/08

    摘要: A measurement device for measuring a physical property such as temperature difference, displacement, pressure, fluid flow rate, etc. comprises: (a) an amplifying means which receives and amplifies a voltage signal corresponding to a detected physical property; (b) a reference voltage generator which generates and applies a reference voltage to the amplifying means at a predetermined time; (c) a memory which stores the output voltage signal from the amplifying means when the reference voltage generator applies the reference voltage to the amplifying means; and (d) a calculating means which outputs at least one command signal to the reference voltage generator to apply the reference voltage to the amplifying means and to the memory to store the output voltage of the amplifying means into a specified memory location thereof at the predetermined time and calculates the value of the desired physical property from the current output voltage of the amplifying means with reference to the stored voltage value in the memory, whereby an accurate physical property measurement can be made by compensating for individual differences and deterioration of the characteristics of the measurement device.

    摘要翻译: 用于测量诸如温度差,位移,压力,流体流速等的物理性质的测量装置包括:(a)放大装置,其接收和放大对应于检测到的物理性质的电压信号; (b)参考电压发生器,其在预定时间产生并施加参考电压到所述放大装置; (c)当基准电压发生器将参考电压施加到放大装置时存储来自放大装置的输出电压信号的存储器; 以及(d)计算装置,其将至少一个命令信号输出到参考电压发生器以将参考电压施加到放大装置和存储器,以将放大装置的输出电压存储在预定的存储位置中 时间,并根据存储器中存储的电压值从放大装置的当前输出电压计算所需物理量的值,从而可以通过补偿个体差异和特性劣化来进行精确的物理性质测量 测量装置。

    Magnetic recording medium
    37.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US4654260A

    公开(公告)日:1987-03-31

    申请号:US444572

    申请日:1982-11-16

    摘要: The present invention makes it possible that in a magnetic recording medium having a magnetic layer which contains therein ferromagnetic powder and serving as a magnetic recording medium for short wavelength recording in, for example, a video tape recorder, when the coercive force of the magnetic layer is over 1000 Oe, the specific surface area of its ferromagnetic alloy powder measured according to BET adsorption method is made 45 m.sup.2 /g or above, and the high density recording where the central recording wavelength is not more than 1 .mu.m is carried out thus recording and playback with low noise and high output being made.

    摘要翻译: PCT No.PCT / JP82 / 00074 Sec。 371日期1982年11月16日 102(e)日期1982年11月16日PCT申请日1982年3月17日PCT公布。 公开号WO82 / 03292 日本1982年9月30日。本发明使得在具有磁性层的磁性记录介质中,其中含有铁磁性粉末并且用作例如磁带录像机中的短波长记录介质的磁记录介质, 磁性层的矫顽力超过1000Oe,根据BET吸附法测定的铁磁性合金粉末的比表面积为45m 2 / g以上,中心记录波长不大于 因此进行1微米的记录和播放,具有低噪声和高输出。

    Fuel injection pump for an internal combustion engine
    38.
    发明授权
    Fuel injection pump for an internal combustion engine 失效
    用于内燃机的燃油喷射泵

    公开(公告)号:US4531488A

    公开(公告)日:1985-07-30

    申请号:US495661

    申请日:1983-05-18

    摘要: Fuel is periodically injected into an engine combustion chamber by a first injection device as an engine crankshaft rotates. A timing control device serves to adjust the timing of fuel injection effected by the first injection device with respect to the rotational angle of the crankshaft. Fuel is also periodically injected into the combustion chamber by a second injection device as the crankshaft rotates. Adjustment of the timing of fuel injection effected by the first injection device results in variation of the total fuel injection rate characteristic curve with respect to the rotational angle of the crankshaft.

    摘要翻译: 当发动机曲轴旋转时,燃料通过第一喷射装置定期地喷射到发动机燃烧室中。 定时控制装置用于相对于曲轴的旋转角度来调节由第一喷射装置实现的燃料喷射的定时。 当曲轴旋转时,燃料也通过第二注射装置周期性地注入燃烧室。 由第一喷射装置进行的燃料喷射的定时的调整导致总燃料喷射速率特性曲线相对于曲轴的旋转角度的变化。

    Exhaust gas recirculation system for an internal combustion engine
    39.
    发明授权
    Exhaust gas recirculation system for an internal combustion engine 失效
    内燃机排气再循环系统

    公开(公告)号:US4453379A

    公开(公告)日:1984-06-12

    申请号:US460563

    申请日:1983-01-24

    CPC分类号: F02D41/005 F02B3/06 Y02T10/47

    摘要: An exhaust gas recirculation system is applied to an internal combustion engine having a combustion chamber and an exhaust passage conducting exhaust gas from the combustion chamber to the atmosphere. The system includes a first mechanism provided to recirculate the exhaust gas through the combustion chamber. A second mechanism is associated with the first mechanism to adjustably determine the percentage of the exhaust gas recirculated. A sensor detects the average pressure in the exhaust passage. In response to the detected exhaust pressure, a third mechanism controls the second mechanism in such a manner that the percentage of the exhaust gas recirculated is independent of the variations in the average pressure in the exhaust passage.

    摘要翻译: 排气再循环系统被应用于具有燃烧室和从燃烧室向大气传导废气的排气通道的内燃机。 该系统包括设置成使废气再循环通过燃烧室的第一机构。 第二机构与第一机构相关联,以可调节地确定再循环的废气的百分比。 传感器检测排气通道中的平均压力。 响应于检测到的排气压力,第三机构以这样的方式控制第二机构,使得再循环的废气的百分比与排气通道中的平均压力的变化无关。

    Exhaust gas recirculation control system for internal combustion engine
    40.
    发明授权
    Exhaust gas recirculation control system for internal combustion engine 失效
    内燃机排气再循环控制系统

    公开(公告)号:US4446840A

    公开(公告)日:1984-05-08

    申请号:US441036

    申请日:1982-11-12

    摘要: An E.G.R. control system for a diesel engine is disclosed wherein a deterioration in combustion is avoided upon depressing an accelerator pedal for reacceleration after the momentary release of the accelerator pedal. An E.G.R. control unit is responsive to a load indicative signal from a load sensor and a revolution signal from a revolution sensor and generates an engine operating state indicative signal indicating that the engine operates in low load state which requires high E.G.R. flow rate. A monostable circuit, a delay circuit and a logic circuit make up a circuit means for preventing a throttle valve from being closed until the engine keeps operating in the low load state for a time longer than a predetermined time.

    摘要翻译: 一个E.G.R. 公开了一种用于柴油发动机的控制系统,其中在加速器踏板瞬时释放之后,在踩下用于再加速的加速踏板时,避免了燃烧的劣化。 一个E.G.R. 控制单元响应来自负载传感器的负载指示信号和来自旋转传感器的转数信号,并产生指示发动机在要求高E.G.R.的低负载状态下工作的发动机运转状态指示信号。 流量。 单稳态电路,延迟电路和逻辑电路构成用于防止节流阀闭合直到发动机在低负载状态下工作超过预定时间的电路装置。