Microcombustion engine/generator
    93.
    发明授权
    Microcombustion engine/generator 失效
    微燃发动机/发电机

    公开(公告)号:US06397793B2

    公开(公告)日:2002-06-04

    申请号:US09782099

    申请日:2001-02-13

    IPC分类号: F02B7100

    摘要: A knocking-based, micro-combustion engine constructed in three layers of micromachined material. Two outer layers contain means for directing gases and fuels into and out of vents in a middle layer. The middle layer has machined in it two, linear, free pistons with or without integral air springs, and vents for directing gases and fuels into and out of a combustion chamber. A high compression ratio is achieved. The engine can be constructed with means to generate electrical energy.

    摘要翻译: 一种以三层微机械加工材料构造的基于敲击的微型燃烧发动机。 两个外层包含用于将气体和燃料引入和排出中间层的通风口的装置。 中间层已经加工了两个具有或不具有一体空气弹簧的线性,自由活塞,以及用于将气体和燃料引入和排出燃烧室的通风口。 达到高压缩比。 发动机可以用来产生电能的手段构成。

    Gas sensor with phased heaters for increased sensitivity
    94.
    发明授权
    Gas sensor with phased heaters for increased sensitivity 有权
    带有加热器的气体传感器,增加灵敏度

    公开(公告)号:US06393894B1

    公开(公告)日:2002-05-28

    申请号:US09361886

    申请日:1999-07-27

    IPC分类号: G01N3000

    摘要: A concentrator and sensor assembly are disclosed that use phased heaters to multiply the concentration levels that can be eluted, relative to operation with a single interactive element having a sorbent material to increase the concentration of desired gas constituents at a detector. This is accomplished here by providing two or more interactive concentrator elements that are selectively heated in a time phased sequence so that each of the interactive elements becomes heated and desorbs gas constituents into the sample fluid stream at substantially the same time that an upstream concentration pulse, produced by heating one or more upstream interactive elements, reaches the interactive element. This produces a multiplication effect that significantly increases the concentration of the gas constituents at the detector, thereby increasing the effective sensitivity of the detector.

    摘要翻译: 公开了一种浓缩器和传感器组件,其使用相位加热器相对于具有吸附剂材料的单个相互作用元件的操作相比可以洗脱的浓度水平增加以增加检测器处的​​期望气体组分的浓度。 这通过提供两个或更多个相互作用的集中器元件来实现,所述两个或多个相互作用的集中器元件在时间相序中被选择性地加热,使得每个相互作用元件被加热并且将气体成分解吸到样品流体流中, 通过加热一个或多个上游交互元件产生的到达交互元件。 这产生了显着增加检测器处气体成分浓度的乘法效应,从而提高了检测器的有效灵敏度。

    Engine misfire monitor
    96.
    发明授权
    Engine misfire monitor 有权
    发动机失火监控

    公开(公告)号:US06363778B1

    公开(公告)日:2002-04-02

    申请号:US09213502

    申请日:1998-12-17

    IPC分类号: G01M1900

    CPC分类号: G01M15/11 G01M15/108

    摘要: A misfire monitor for detecting cylinder misfires in an internal combustion engine. The monitor has a light detector that senses infrared light signals emerging from combustion gases through a window inserted on an exhaust pipe or manifold. Characteristics of a detected light signal indicate whether there is a firing or a misfire in any cylinder. Other information about the engine is deduced with processing of the detected signals and misfire counts. The detection is real time and functions well at all normal engine speeds and operating conditions.

    摘要翻译: 用于检测内燃机中气缸失火的失火监视器。 监视器具有光检测器,其通过插入在排气管或歧管上的窗口感测从燃烧气体出来的红外光信号。 检测到的光信号的特征指示是否在任何气缸中发射或失火。 关于发动机的其他信息是通过处理检测到的信号和失火计数得出的。 检测是实时的,并且在所有正常的发动机速度和操作条件下都能很好地起作用。

    Microsensor housing
    97.
    发明授权
    Microsensor housing 有权
    微传感器外壳

    公开(公告)号:US06361206B1

    公开(公告)日:2002-03-26

    申请号:US09239125

    申请日:1999-01-28

    申请人: Ulrich Bonne

    发明人: Ulrich Bonne

    IPC分类号: G01K1302

    摘要: A microsensor housing having a structure with at least one inlet at one end and a thermal property sensor at the other end. Situated between the inlet and the sensor is a convection shield. Sampled fluid is taken in the inlet from a channel carrying the fluid to be sampled. The convection flow lines of the fluid are barred by the convection shield. The fluid is diffused into a cavity between the shield and sensor. The sensor detects a thermal property of the diffused fluid. One preferred shield has holes about its perimeter with a solid center part of the shield covering at a distance the sensor. The channel carrying the fluid may have screens to reduce turbulence noise and to aid in fluid transport to and from the sensor housing.

    摘要翻译: 具有在一端具有至少一个入口的结构的微传感器外壳和另一端的热性传感器。 位于入口和传感器之间的是对流屏蔽。 采样流体从携带要采样的流体的通道进入入口。 流体的对流流线被对流屏蔽体所禁止。 流体扩散到屏蔽和传感器之间的空腔中。 传感器检测扩散流体的热性质。 一个优选的屏蔽件围绕其周边具有孔,屏蔽件的实心中心部分在传感器的一定距离处覆盖。 承载流体的通道可以具有筛网以减少湍流噪声并且有助于流体传输到传感器壳体和从传感器壳体传输。

    Fluid property and flow sensing via a common frequency generator and FFT
    98.
    发明授权
    Fluid property and flow sensing via a common frequency generator and FFT 失效
    通过公共频率发生器和FFT进行流体特性和流量检测

    公开(公告)号:US06169965A

    公开(公告)日:2001-01-02

    申请号:US09001453

    申请日:1997-12-31

    IPC分类号: G01N2500

    摘要: A method and apparatus for using a common frequency generator for measuring selected properties of a fluid of interest via one or more heater and/or sensor elements. The common frequency generator may sequentially and/or simultaneously provide input signals to selected heater and/or sensor elements. Application of more than one frequency component by the common frequency generator enables the determination of one or more time and/or phase lags more efficiently, especially when using an FFT analysis technique. From the time and/or phase lags, the selected fluid properties including fluid flow speed can be determined.

    摘要翻译: 一种用于使用公共频率发生器来测量经由一个或多个加热器和/或传感器元件的感兴趣流体的选定特性的方法和装置。 公共频率发生器可以顺序地和/或同时向选定的加热器和/或传感器元件提供输入信号。 通过共用频率发生器应用多于一个频率分量能够更有效地确定一个或多个时间和/或相位延迟,特别是在使用FFT分析技术时。 从时间和/或相位滞后,可以确定包括流体流速在内的所选择的流体特性。

    Micromachined integrated opto-flow gas/liquid sensor
    100.
    发明授权
    Micromachined integrated opto-flow gas/liquid sensor 失效
    微加工集成光电气体/液体传感器

    公开(公告)号:US5869749A

    公开(公告)日:1999-02-09

    申请号:US841748

    申请日:1997-04-30

    摘要: A micromachined integrated opto-fluidic or opto-acoustic sensor having a rapidly intensity-varying or pulsing light source, an interference filter, a gas cavity, which may or may not be an optical and/or acoustic resonator tuned to a particular wavelength of light, or sound frequency, into which the detected gas can diffuse into via a filter, and a fluidic or pressure sensor to detect the heating and cooling, and the resulting expansion and contraction of the gas due to the absorption of light at the particular wavelength by the specific gas being detected. The presence of other gases is inferred from the detected gas.

    摘要翻译: 具有快速强度变化或脉冲光源的微加工的集成光流式或光声传感器,干涉滤光器,气腔,其可以或可以不是调谐到特定波长的光的光学和/或声学谐振器 或声音频率,检测到的气体可以通过过滤器扩散到其中;以及流体或压力传感器以检测加热和冷却,以及由于通过在特定波长处吸收光而导致的气体的膨胀和收缩 被检测的特定气体。 从检测到的气体推断其他气体的存在。