Apparatus and method for monitoring and compensating for variation in solenoid resistance during use
    1.
    发明授权
    Apparatus and method for monitoring and compensating for variation in solenoid resistance during use 失效
    用于监测和补偿使用过程中螺线管电阻变化的装置和方法

    公开(公告)号:US07054772B2

    公开(公告)日:2006-05-30

    申请号:US10677646

    申请日:2003-09-30

    IPC分类号: G01R25/00 G01R27/00 G01R13/00

    摘要: A very small fixed current is passed through the coil of a solenoid during use thereof when the solenoid is in its “off” state of cyclic PWM command, the fixed current being less than the current required to actuate the solenoid to the “on” position. While the current is flowing through the coil, the voltage across the coil is measured. The resistance of the coil is calculated according to Ohm's Law. When the actual resistance is known, the duty cycle imposed on the solenoid may be altered to compensate for the resistance deviation from nominal. This allows, for example, fuel injectors for internal combustion engines to deliver the correct amount of fuel under all operating conditions.

    摘要翻译: 当螺线管处于其循环PWM指令的“关闭”状态时,非常小的固定电流在其使用期间通过螺线管的线圈,固定电流小于将螺线管致动到“接通”位置所需的电流 。 当电流流过线圈时,测量线圈两端的电压。 线圈的电阻根据欧姆定律计算。 当实际电阻已知时,施加在螺线管上的占空比可能被改变以补偿电阻与标称的偏差。 这允许例如用于内燃机的燃料喷射器在所有操作条件下输送正确量的燃料。

    Vapor storage canister with volume change compensator
    5.
    发明授权
    Vapor storage canister with volume change compensator 失效
    具有容积变化补偿器的蒸汽储存罐

    公开(公告)号:US5098453A

    公开(公告)日:1992-03-24

    申请号:US694600

    申请日:1991-05-02

    IPC分类号: F02M25/08

    CPC分类号: F02M25/0854

    摘要: A bed of activated carbon granules is maintained tightly packed within a fuel vapor storage canister housing by a specially designed compensator. A pair of spring loaded, nested trays move axially relative to one another and push continually into the lower face of the carbon bed to keep it packed. The trays also define a continuous, self maintaining gap that is smaller than the expected carbon granule size, preventing them from falling out in spite of the swelling of the canister housing.

    Masonry coloring stencil
    6.
    发明授权
    Masonry coloring stencil 失效
    砖石着色模具

    公开(公告)号:US5038714A

    公开(公告)日:1991-08-13

    申请号:US318657

    申请日:1989-03-03

    IPC分类号: B05B15/04

    CPC分类号: B05B15/045

    摘要: A masonry stencil for masking preselected mortar patterns on a masonry surface and an associated method for coloring or staining a masonry surface. The stencil comprises a latticework structure including an open framework of strips defining a pattern corresponding to the desired or the pre-existing mortar pattern of the masonry, and defining open spaces through which a coloring medium can be applied to the masonry surface. The stencil further comprises a gasket secured to the under surface of the latticework structure for sealably engaging the masonry surface. In accordance with the method of the present invention the masonry stencil is placed on the masonry surface so as to mask the desired mortar pattern or an existing mortar pattern, and a coloring medium is applied to the unmasked surface area exposed by the open spaces of the stencil. The stencil is then removed leaving the mortar pattern uncolored.

    摘要翻译: 用于在砖石表面上掩蔽预选砂浆图案的砖石模板和用于着色或染色砌体表面的相关方法。 模板包括网格结构,其包括限定对应于砖石的期望或预先存在的砂浆图案的图案的条带的开放框架,并且限定可以将着色介质施加到砖石表面的开放空间。 模板还包括固定到网格结构的下表面的垫圈,用于密封地接合砖石表面。 根据本发明的方法,将砖石模板放置在砌体表面上,以掩蔽所需的砂浆图案或现有的砂浆图案,并且将着色介质施加到暴露于该开口空间的未掩蔽表面区域 模版。 然后取出模板,留下未着色的砂浆图案。

    Method and apparatus for decoding diphase signals
    10.
    发明授权
    Method and apparatus for decoding diphase signals 失效
    双相信号解码方法和装置

    公开(公告)号:US3982195A

    公开(公告)日:1976-09-21

    申请号:US581989

    申请日:1975-05-29

    申请人: Kenneth W. Turner

    发明人: Kenneth W. Turner

    CPC分类号: H04L25/4904

    摘要: An incoming diphase signal is edge detected producing a train of pulses each pulse of which corresponds to a base-bit level transition or a mid-bit level transition. The mid-bit transition pulses are removed and the remaining base-bit transition pulses are used to control the frequency of a voltage controlled oscillator which clocks a shift register counter. Selected states of the counter are decoded to generate two regular pulse trains. Each pulse of the first pulse train occurs during the first half of a corresponding diphase base-bit time interval and the related pulse is used to selectively sample the diphase level. An exclusive NOR-gate compares this sampled level with the diphase level during the last half of the related diphase base bit time interval. The second train of pulses directs the sampling of the output of the exclusive NOR-gate at a selected moment during the last half of the same base-bit interval and the comparison information is stored for one base-bit interval thus generating a mark-space data signal corresponding to the data information carried by the incoming diphase signal.

    摘要翻译: 输入双相信号被边缘检测,产生脉冲序列,其每个脉冲对应于基位电平转换或中位电平转换。 中位转换脉冲被去除,剩余的基位转换脉冲用于控制对移位寄存器计数器进行计时的压控振荡器的频率。 计数器的选定状态被解码以产生两个常规脉冲序列。 第一脉冲序列的每个脉冲在对应的双相碱基位时间间隔的前半部分发生,并且使用相关的脉冲来选择性地对二相电平进行取样。 一个异或门将这个采样电平与相关二相基极位时间间隔的后半部分的双相电平进行比较。 第二列脉冲在同一基位间隔的最后一半期间的选定时刻引导异或门输出的采样,并且比较信息被存储为一个基位间隔,从而产生标记空间 数据信号对应于由输入双相信号携带的数据信息。