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    • 1. 发明授权
    • Pressure sensor system
    • 压力传感器系统
    • US5055826A
    • 1991-10-08
    • US509631
    • 1990-04-16
    • Jan Ballyns
    • Jan Ballyns
    • B60C23/04G01L7/08H01H35/28H01H35/34
    • H01H35/346B60C23/0408B60C23/0494H01H35/28
    • A pressure sensor that responds to a predetermined rate of change of pressure in the fluid medium comprises a housing that encloses a pressure chamber which has a permeable wall and flexible diaphragm that separates the pressure chamber from the pressure sensitive system in which the sensor is used. The sensor may be used in a pneumatic tire and in such use the flexible diaphragm will be deflected to activate a transmitter when the pressure in the tire changes at a hazardous rate. The sensor will not activate the transmitter when the rate of change of pressure is less than a hazardous rate of change.
    • 响应于流体介质中的预定压力变化的压力传感器包括封闭压力室的壳体,所述压力室具有可渗透壁和柔性膜片,该压力室将压力室与使用传感器的压力敏感系统分离。 传感器可以用在充气轮胎中,并且在这种使用中,当轮胎中的压力以危险的速度变化时,柔性隔膜将被偏转以激活变送器。 当压力变化率小于危险变化率时,传感器不会启动变送器。
    • 3. 发明授权
    • Apparatus for measuring variables
    • 用于测量变量的装置
    • US3891956A
    • 1975-06-24
    • US41733873
    • 1973-11-19
    • AEROJET GENERAL CO
    • ALLEMANN JAMES G
    • H01H35/28H01H37/10
    • H01H35/28
    • An apparatus for measuring two variables expresses one of the variables in terms of a first change of position, and the other variable in terms of a second change of position, derives from the first and second changes of positions a measurement of the two variables, and combines a third change of position with the first change of position to modify the operation of the measurement function. Such apparatus can be used, for example, to determine the state of a fluid by measuring two variable characteristics thereof, such as pressure and temperature.
    • 用于测量两个变量的装置根据位置的第一变化表示变量中的一个,并且在位置的第二变化方面的另一个变量源于两个变量的测量的位置的第一和第二变化,以及 将位置的第三个变化与位置的第一个变化相结合,以修改测量功能的操作。 例如,这种装置可以用于通过测量流体的两个可变特性(例如压力和温度)来确定流体的状态。
    • 7. 发明授权
    • Temperature compensated low pressure switch for hybrid inflators
    • 用于混合式充气机的温度补偿低压开关
    • US5304758A
    • 1994-04-19
    • US876241
    • 1992-04-30
    • Robert J. BishopRichard L. FrantomRobert M. KremerKlaus F. OckerRoy G. BrownTeresa L. BazelDonald W. Renfroe
    • Robert J. BishopRichard L. FrantomRobert M. KremerKlaus F. OckerRoy G. BrownTeresa L. BazelDonald W. Renfroe
    • H01H35/28H01H35/34
    • H01H35/343H01H2001/0005H01H35/28
    • A pressure switch (30) adapted to be placed within a pressurized chamber for generating a logical signal when the pressure within the chamber reduces to a determinable pressure P.sub.1. The pressure switch (30) comprises: a pressure vessel (32) sealed at one end (34) by a snap action diagram (40) and having an inner stop (42) and an outer stop (60, 62) respectively positioned on opposing sides of the diaphragm (40) for limiting diaphragm motion. The outer stop comprises: a first cylindrical portion (78), a first pair of parallel slots (80a, b) formed therein and a through bore (70, 72, 74) extending therethrough. A switch assembly is loosely mounted to the outer stop. The switch assembly (90) comprises an upper housing member (92), a lower housing member (94), first and second electrical contacts (96a, 96b) and a pin (98). The upper housing member (92) comprising a hollow cylindrical portion (100) adapted to be slid over first cylindrical portion including a second pair of opposing slots (113a, b), the first and second cylindrical portions (78, 100) are loosely secured together by a clip (150) fitted within the first and second pair of slots (80a,b; 112a,b) to eliminate compressive loading between the switch assembly and other components of the switch.
    • 压力开关(30)适于放置在加压室内以在室内的压力降低到可确定的压力P1时产生逻辑信号。 压力开关(30)包括:压力容器(32),其通过卡扣动作图(40)在一端(34)处密封并且具有分别位于相对的位置上的内部止动件(42)和外部止动件(60,62) 隔膜(40)的侧面用于限制隔膜运动。 外止动件包括:第一圆柱形部分(78),形成在其中的第一对平行狭槽(80a,b)和延伸穿过其中的通孔(70,72,74)。 开关组件松动地安装到外部止动件。 开关组件(90)包括上壳体构件(92),下壳体构件(94),第一和第二电触头(96a,96b)和销(98)。 上壳体构件(92)包括适于在包括第二对相对的槽(113a,b)的第一圆柱形部分上滑动的中空圆柱形部分(100),第一和第二圆柱形部分(78,100)松动地固定 一起装配在第一和第二对槽(80a,b; 112a,b)内的夹子(150),以消除开关组件与开关的其它部件之间的压缩载荷。
    • 8. 发明授权
    • Temperature-dependent pressure switch and pressure control system using
the switch
    • 温度依赖压力开关和使用开关的压力控制系统
    • US5108265A
    • 1992-04-28
    • US563145
    • 1990-08-03
    • Ichiro Koike
    • Ichiro Koike
    • B60T17/00F15B1/02H01H35/26H01H35/28
    • H01H35/28
    • The temperature-dependent pressure detection switch according to the present invention comprises a pressure receiving member to receive hydraulic pressure, on which spring force of the predetermined value is permanently applied to the direction reverse to the operating direction of said hydraulic pressure and the spring force is varied according to temperature change, and a switch unit, which is operated by the movement of said pressure receiving member against said spring force when predetermined hydraulic pressure is received. Accordingly, when ambient temperature changes, spring force is changed, and the switchover setting pressure related to the on-off switchover operation of the switch unit can be changed according to temperature change. Namely, the pressure detection switch can be provided with temperature-dependent property. By the hydraulic pressure control system using the temperature-dependent pressure switch according to this invention, it is possible to accumulate the operating fluid in the accumulator in such quantity as necessary for operating hydraulic equipment.
    • 根据本发明的依赖于温度的压力检测开关包括压力接收构件,用于接收液压,其上预定值的弹簧力永久地施加到与所述液压的操作方向相反的方向,弹簧力为 根据温度变化而变化,以及开关单元,当接收到预定的液压时,开关单元通过所述压力接收构件的运动抵抗所述弹簧力而被操作。 因此,当环境温度变化时,弹簧力变化,并且与开关单元的开 - 关切换操作相关的切换设定压力可以根据温度变化而改变。 也就是说,压力检测开关可以具有温度依赖性。 通过使用根据本发明的依赖于温度的压力开关的液压控制系统,可以将工作流体累积在用于操作液压设备所需的量中。
    • 9. 发明授权
    • Differential pressure indicator with temperature compensation
    • 带温度补偿的差压指示器
    • US5081448A
    • 1992-01-14
    • US609178
    • 1990-11-05
    • Kensuke Yoshii
    • Kensuke Yoshii
    • G01L13/02B01D35/143G08B21/18H01H35/28H01H37/32
    • H01H35/28B01D35/143G08B21/182H01H2061/0115H01H37/323
    • An oil filter for filtering oil is combined with a differential pressure indicator with temperature compensation. The differential pressure indicator has a spool assembly slidably disposed in a spool insertion cylinder in axially confronting relation to a terminal which is connected through a warning lamp to a battery. The spool assembly comprises a spool body disposed for axial sliding movement in the spool insertion cylinder, a contact member disposed for axial sliding movement in the spool body and having a contact pin movable out of one of the spool body, and a spring of a shape-memory alloy, restorable to a memorized shape when the oil is in a predetermined temperature range, for biasing the contact member to move the contact pin out of the spool body towards the terminal. When a differential pressure in excess of a predetermined level is developed in the oil and applied to the spool assembly, the differential pressure acts to move the spool assembly towards the terminal. The contact pin is brought into electric contact with the terminal only when the shape-memory spring restores its memorized shape at the time the oil is in the predetermined temperature range.
    • 用于过滤油的滤油器与带温度补偿的差压指示器组合。 压差指示器具有可滑动地设置在滑阀插入圆柱体中的线轴组件,其轴向相对于通过警告灯与电池连接的端子相对。 卷筒组件包括:卷筒体,其设置用于在卷轴插入筒中的轴向滑动运动;接触构件,设置成用于在卷轴体中轴向滑动运动,并且具有可从卷轴体中的一个中移动的接触销,以及形状为弹簧的弹簧 内存合金,当油处于预定温度范围时可恢复为记忆形状,用于偏置接触构件以使接触销从卷轴体朝向端子移动。 当在油中产生超过预定水平的压力并施加到阀芯组件时,差压用于将阀芯组件移向端子。 仅当形状记忆弹簧在油处于预定温度范围时恢复其记忆形状时,接触销才与端子电接触。