Single-stage fuel tank pressure control valve
    1.
    发明授权
    Single-stage fuel tank pressure control valve 有权
    单级燃油箱压力控制阀

    公开(公告)号:US06631881B2

    公开(公告)日:2003-10-14

    申请号:US09923790

    申请日:2001-08-08

    IPC分类号: F16K3102

    摘要: A valve structure that includes a housing, a valve element, and a seal. The housing includes a first communication path between a first port at a first pressure level and a second port at a second pressure level. The valve element is movable with respect to the housing between a first position, a second position, and an intermediate position between the first and second positions. The first position permits substantially unrestricted fluid flow between the first and second ports. The second position substantially prevents fluid flow between the first and second ports. The seal is located at an interface between the housing and the valve element. The seal deforms in response to a differential between the first and second pressure levels such that at the intermediate position, there is restricted fluid flow between the first and second ports.

    摘要翻译: 一种阀结构,其包括壳体,阀元件和密封件。 壳体包括在第一压力水平的第一端口和第二压力水平的第二端口之间的第一连通路径。 阀元件可相对于壳体在第一位置和第二位置之间以及在第一和第二位置之间的中间位置之间移动。 第一位置允许在第一和第二端口之间基本上不受限制的流体流动。 第二位置基本上防止流体在第一和第二端口之间流动。 密封件位于壳体和阀体之间的界面处。 密封件响应于第一和第二压力水平之间的差异而变形,使得在中间位置处,第一和第二端口之间的流体流动受到限制。

    Inertial sensor unit
    2.
    发明授权
    Inertial sensor unit 失效
    惯性传感器单元

    公开(公告)号:US5778543A

    公开(公告)日:1998-07-14

    申请号:US848407

    申请日:1997-05-08

    IPC分类号: G01C19/38 G01C19/72 G01C21/16

    CPC分类号: G01C19/72 G01C19/38 G01C21/16

    摘要: An inertial sensor unit for determining north, has a housing and a positioning gimbal rotatably mounted in this housing about a substantially vertical axis. A releasable, cooperating detent mechanism defines three fixed angular detent positions of the positioning gimbal about the substantially vertical axis relative to the housing. The positioning gimbal is successively rotated into the three detent positions. A fiber optical gyro is mounted on the positioning gimbal. The input axis forms an acute angle with a substantially horizontal axis orthogonal to the above mentioned substantially vertical axis. A signal processing system is provided, to which the signals generated by the fiber optical gyro in the three detent positions are applied. The signal processing system provides, therefrom, the angle between a reference direction and north.

    摘要翻译: 用于确定北的惯性传感器单元具有壳体和定位万向架,所述定位万向架围绕基本上垂直的轴线可旋转地安装在该壳体中。 可释放的配合的止动机构限定定位万向架相对于壳体基本上垂直的轴线的三个固定的角​​度定位位置。 定位万向节连续旋转到三个定位位置。 光纤陀螺安装在定位万向架上。 输入轴与垂直于上述基本竖直轴线的基本水平轴线形成锐角。 提供一种信号处理系统,其中施加由三个制动位置中的光纤陀螺仪产生的信号。 信号处理系统由此提供参考方向和北部之间的角度。

    Corner deflection assembly
    3.
    发明授权
    Corner deflection assembly 失效
    角偏转组件

    公开(公告)号:US4637165A

    公开(公告)日:1987-01-20

    申请号:US581275

    申请日:1984-02-17

    申请人: Alfred Schneider

    发明人: Alfred Schneider

    IPC分类号: E05C9/24 E05D15/52 E05F7/08

    摘要: An assembly for the transfer of operating movement around the corner of a window or door, particularly tilt/turn closures, involves an angled casing, guiding a flexible deflection member, which connects the operating rods of the closure. An intermediary connecting member between the flexible deflection member and an operating rod forms a slide bolt, preferably a tilt-lock locking-slide, which is stiffened by a longitudinal batten. The batten fits in a slot on one leg of the angled casing. The sliding bolt engages the flexible member by means of a cam-and-recess. The batten stabilizes the flexible member when it is under compression. The assembly and the sliding bolt are shaped to allow insertion in grooves in the profiles which form the closure frame. A clamping piece holds one of the legs in the frame. Elements of the assembly assist in dispersing transverse forces which can cause binding.

    摘要翻译: 用于传递围绕窗或门的角落的操作运动的组件,特别是倾斜/转动闭合件,包括成角度的壳体,引导连接封闭件的操作杆的挠性偏转构件。 柔性挠性构件和操作杆之间的中间连接构件形成滑动螺栓,优选为倾斜锁定锁定滑块,其由纵向板条加固。 蝙蝠座装在角度套管一条腿的狭槽中。 滑动螺栓通过凸轮和凹槽与柔性构件接合。 柔性构件在压缩时稳定。 组件和滑动螺栓成形为允许插入形成封闭框架的型材中的凹槽中。 夹紧件将其中一条腿固定在框架中。 组件的元件有助于分散可能导致结合的横向力。

    Evaporative emission control system including a fuel tank isolation valve and a canister vent valve

    公开(公告)号:US06601569B2

    公开(公告)日:2003-08-05

    申请号:US09960718

    申请日:2001-09-24

    IPC分类号: F02M3704

    摘要: A system and method for controlling evaporative emissions of a volatile fuel. The system preferably has a fuel vapor collection canister, a purge valve, an isolation valve, a fuel tank, and a vent valve. The fuel vapor collection canister includes a supply port and a discharge port. The purge valve includes an inlet port and an outlet port. The inlet port of the purge valve is in fluid communication with the discharge port of the fuel vapor collection canister. The isolation valve includes a housing, a valve body, and a seal. The housing has a first port in fluid communication with the supply port of the fuel vapor collection canister, a second port, and a fuel vapor flow path that extends between the first and second ports. The valve body is movable with respect to the housing along an axis between a first configuration and a second configuration. The first configuration permits substantially unrestricted fuel vapor flow between the first and second ports, and the second configuration substantially prevents fuel vapor flow between the first and second ports. The seal, which is located at an interface between the housing and the valve body, includes an annular lip that projects obliquely toward the axis in the first configuration. The fuel tank is in fluid communication with the second port of the isolation valve. Thus, the fuel tank can be isolated from the fuel vapor collection canister while purging the fuel vapor collection canister. The vent valve controls ambient fluid flow with respect to the fuel vapor collection canister

    Method of operating a fuel tank isolation valve and a canister vent valve
    5.
    发明授权
    Method of operating a fuel tank isolation valve and a canister vent valve 有权
    操作油箱隔离阀和罐排气阀的方法

    公开(公告)号:US06499472B2

    公开(公告)日:2002-12-31

    申请号:US09960732

    申请日:2001-09-24

    IPC分类号: F02M3302

    CPC分类号: F16K31/0655 F16K24/04

    摘要: A method of operating a fuel tank isolation valve and a canister vent valve. The fuel tank isolation valve has a first port, a second port, an electric actuator, and a valve body. The first port is in fluid communication with a fuel vapor collection canister. The second port is in fluid communication with a fuel tank. The electric actuator moves the valve body to control fluid communication between the first and second ports. And the canister vent valve controls ambient fluid flow with respect to the fuel vapor collection canister. The method includes supplying a first electric signal to the electric actuator such that the valve body permits substantially unrestricted fuel vapor flow between the first and second ports, supplying a second electric signal to the electric actuator such that the valve body substantially prevents fuel vapor flow between the first and second ports, supplying a third electric signal to the electric actuator such that the valve body provides restricted fuel vapor flow between the first and second ports, and supplying a fourth electric signal to the canister vent valve to permit ambient fluid flow into the fuel vapor collection canister. The supplying the fourth electric signal is coincident with the supplying the second electric signal.

    摘要翻译: 一种操作燃料箱隔离阀和罐排气阀的方法。 燃料箱隔离阀具有第一端口,第二端口,电致动器和阀体。 第一端口与燃料蒸气收集罐流体连通。 第二个端口与燃料箱流体连通。 电致动器移动阀体以控制第一和第二端口之间的流体连通。 并且罐排气阀相对于燃料蒸气收集罐控制环境流体流动。 该方法包括向电致动器提供第一电信号,使得阀体在第一和第二端口之间允许基本上不受限制的燃料蒸气流动,向电致动器提供第二电信号,使得阀体基本上防止燃料蒸汽在 所述第一和第二端口向所述电致动器提供第三电信号,使得所述阀体在所述第一和第二端口之间提供有限的燃料蒸气流,并且向所述罐排放阀提供第四电信号,以允许环境流体流入 燃油蒸气收集罐。 提供第四电信号与提供第二电信号一致。

    Nail driving tool
    6.
    发明授权
    Nail driving tool 失效
    指甲工具

    公开(公告)号:US5192012A

    公开(公告)日:1993-03-09

    申请号:US802573

    申请日:1991-12-05

    IPC分类号: B25C1/00 B25C1/04 B27F7/13

    CPC分类号: B25C1/001

    摘要: A nail driving tool is disclosed as including a magazine (9) which, in turn, includes a guide path (7) for guiding a plurality of nails (10.sub.1, 10.sub.2, 10.sub.3. . . ) which are preferably disposed in the form of a nail strip. The guide path (7) is open at an outlet opening (2) from or through which a first or leading nail (10.sub.1) is conveyed into a discharge channel (3). A driving mechanism, such as, for example, a pneumatic driver (11) is disposed within the discharge channel (3) for driving or discharging the leading nail (10.sub.1) from or through the discharge channel (3). A cantilevered leaf spring (8) has one end thereof fixedly mounted upon the magazine (9) while the opposite free end thereof engages the second nail (10.sub.2) disposed immediately upstream of the leading nail (10.sub.1) so as to retain all of the nails disposed upstream of the leading nail (10.sub.1) while the leading nail (10.sub.1) is disposed in its readied state for discharge from the discharge channel (3) by the driver (11). A magnet (4) is disposed within a blind bore (6) upon the opposite side of the discharge channel (3) with respect to the outlet opening (2) for retaining the leading nail (10.sub.1) within the discharge channel (3) at its readied disposition for discharge by the driver (11). A bottom or end wall (5) of the blind bore (6) serves as a protection device for protecting the magnet (4) from the nails as the latter are serially conveyed into the discharge channel (3).

    Method and apparatus for the remote monitoring of fluids
    7.
    发明授权
    Method and apparatus for the remote monitoring of fluids 失效
    用于远程监测流体的方法和装置

    公开(公告)号:US5167144A

    公开(公告)日:1992-12-01

    申请号:US591966

    申请日:1990-10-02

    申请人: Alfred Schneider

    发明人: Alfred Schneider

    IPC分类号: G01N9/28 G01N33/38

    CPC分类号: G01N33/386 G01N9/28 G01N33/38

    摘要: The present invention provides a method and apparatus for measuring, particularly remotely, a first composition-dependent physical property, such as bubble rise velocity or dynamic viscosity, of a fluid comprising a container for holding the fluid at a certain level in order to form a surface on the fluid; a bubble delivery tube for introducing into the fluid at a first depth a first bubble having a first size; a vacuum pump for generating a carrier gas stream; a hood for capturing in the carrier gas stream the first bubble as it leaves the surface of the fluid; and detector in the path of travel of the carrier gas stream to detect the first bubble in order to determine the time of transit of the bubble from first depth to the surface of the fluid, so as to enable calculation of the average bubble rise velocity. In addition, a second bubble delivery tube for introducing a second bubble at a second depth can be added to allow calculation of the average bubble rise velocity independent of the position of the surface of the fluid. Addition of a temperature sensor and apparatus capable of monitoring a second composition-dependent physical property allow the determination of the composition of the fluid by reference to a ternary phase diagram.

    摘要翻译: 本发明提供一种方法和装置,用于特别远程地测量包括用于将流体保持在一定水平的容器的流体的第一组成依赖物理性质,例如气泡上升速度或动态粘度,以便形成 流体表面; 气泡输送管,用于在第一深度将具有第一尺寸的第一气泡引入流体; 用于产生载气流的真空泵; 用于在载气流中捕获第一气泡,当其离开流体表面时的罩; 以及在载气流的行进路径中的探测器以检测第一气泡,以便确定气泡从第一深度到流体表面的转运时间,以便能够计算平均气泡上升速度。 此外,可以添加用于在第二深度引入第二气泡的第二气泡输送管,以便独立于流体表面的位置计算平均气泡升高速度。 添加能够监测第二组成依赖物理特性的温度传感器和装置允许通过参考三元相图来确定流体的组成。

    Process for constructing a structural element that absorbs airborne sound
    8.
    发明授权
    Process for constructing a structural element that absorbs airborne sound 失效
    构建吸收空气中声音的结构元件的过程

    公开(公告)号:US4755416A

    公开(公告)日:1988-07-05

    申请号:US49179

    申请日:1987-05-13

    摘要: The process makes it possible to determine for sound-absorbing structural elements made of a compact or foamed plastic with cup-shaped protuberances, the thickness and area size of the resonance surfaces that is required for an optimal sound aborption, as a function of the height of the protuberances and the endeavored resonance frequency.The use of this process also makes it possible to adapt the frequency response curve of the sound absorption coefficient of the structural element to the frequency response curve of the sound level of a noise source.

    摘要翻译: 该方法使得可以确定由具有杯形突起的​​紧凑或泡沫塑料制成的吸音结构元件,最佳声音吸收所需的谐振表面的厚度和面积大小作为高度的函数 的突起和努力的共振频率。 使用该过程也使得可以将结构元件的吸声系数的频率响应曲线适应于噪声源的声级的频率响应曲线。

    Alarm system responsive to the breaking of glass
    9.
    发明授权
    Alarm system responsive to the breaking of glass 失效
    响应玻璃破碎的报警系统

    公开(公告)号:US4134109A

    公开(公告)日:1979-01-09

    申请号:US796997

    申请日:1977-05-16

    IPC分类号: G08B13/04

    CPC分类号: G08B13/04

    摘要: An alarm system for detecting the pattern of acoustic signals resulting from the breaking of glass utilizes transducers to convert the acoustic waves to electrical signals and then analyzes the signal strength, the frequency content and the pattern of the signal and no signal intervals to discriminate the breaking of glass from background or spurious noises. The system also determines the level of background noise and compensates therefor in determining whether an alarm signal is to be generated.

    摘要翻译: 用于检测由玻璃破裂引起的声信号的模式的报警系统利用换能器将声波转换成电信号,然后分析信号的信号强度,频率含量和模式,并且没有信号间隔来区分断开 的玻璃从背景或杂散的噪音。 该系统还确定背景噪声的水平,并在确定是否产生报警信号时进行补偿。

    Detecting and processing cache hits for queries with aggregates
    10.
    发明授权
    Detecting and processing cache hits for queries with aggregates 有权
    检测和处理具有聚合的查询的缓存命中

    公开(公告)号:US07499910B2

    公开(公告)日:2009-03-03

    申请号:US10186344

    申请日:2002-06-27

    IPC分类号: G06F17/30

    摘要: Techniques to improve query caching performance by efficiently selecting queries stored in a cache for evaluation and increasing the cache hit rate by allowing for inexact matches. A list of candidate queries stored in the cache that potentially could be used to answer a new query is first determined. This list may include all cached queries, cached queries containing exact matches for select list items, or cached queries containing exact and/or inexact matches. Each of at least one candidate query is then evaluated to determine whether or not there is a cache hit, which indicates that the candidate query could be used to answer the new query. The evaluation is performed using a set of rules that allows for inexact matches of aggregates, if any, in the new query. A query plan is generated for the new query based on a specific candidate query with a cache hit.

    摘要翻译: 通过有效地选择存储在缓存中的查询来进行评估来提高查询缓存性能的技术,通过允许不精确的匹配来提高缓存命中率。 首先确定存储在缓存中的潜在可能用于回答新查询的候选查询的列表。 此列表可能包括所有缓存的查询,包含精选列表项的精确匹配的缓存查询,或包含精确和/或不精确匹配的缓存查询。 然后评估至少一个候选查询中的每一个以确定是否存在高速缓存命中,其指示候选查询可以用于回答新查询。 评估是使用一组规则执行的,这些规则允许在新查询中聚合的不精确匹配(如果有)。 基于具有高速缓存命中的特定候选查询,为新查询生成查询计划。