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    • 32. 发明公开
    • Pressure generation and responsive mechanism
    • Druckerzeugungs- und Verwertungseinrichtung。
    • EP0310028A2
    • 1989-04-05
    • EP88115991.7
    • 1988-09-28
    • TOYODA KOKI KABUSHIKI KAISHA
    • Asano, HiroakiYamamoto, Masaji
    • F16D35/00F16D43/284F15B5/00
    • F16D35/00B60G2202/135B60G2202/42F16D43/284
    • A pressure generation and responsive mechanism is provided wherein several blade members (42) bodily movable with a first member (41, 38, 20) is received within a space (43) formed in a second member (12, 31, 32, 36). The blade members being embedded between a first flat end surface provided by the second member and a second flat end surface provided by an actuation piston (36) - by itself or in cooperation with the second member. Silicon oil is filled within several space sections defined by the first and second flat end surfaces and the blade members. When the first member is moved relative to the second member, the blade members compulsorily displaces the silicon oil within the several space sections against viscous friction resistance with the first and second flat end surfaces. Thus, a pressure is generated within each of the several space sections to actuate the actuation piston.
    • 提供了一种压力产生和响应机构,其中可以与第一构件(41,43,20)一体移动的多个叶片构件(42)被容纳在形成在第二构件(12,31,32,36)中的空间(43)内, 。 叶片构件被嵌入在由第二构件提供的第一平坦端表面和由致动活塞(36)提供的第二平坦端表面之间 - 自身或与第二构件协作。 硅油填充在由第一和第二平坦端面和叶片构件限定的几个空间部分内。 当第一构件相对于第二构件移动时,叶片构件强制地使几个空间部分内的硅油与第一和第二平坦端面抵抗粘性摩擦阻力。 因此,在几个空间部分的每一个内产生压力以致动致动活塞。
    • 33. 发明公开
    • Position transmitters
    • 定位发射机
    • EP0174748A1
    • 1986-03-19
    • EP85305775.0
    • 1985-08-14
    • THE BABCOCK & WILCOX COMPANY
    • Smith, Jane E.Sampson, Raymond J.
    • F15B5/00G01D5/44
    • G05D3/1472
    • A position transmitter (8) includes a d c power supply (10) having a positive terminal connected to an input line (12) and a negative terminal connected, through a system controller (14) having a variable load. to an output line (16). A voltage divider including a potentiometer (30 ! is connected across the input and output lines (12. 16). A wiper (281 of the potentiometer (30) is mechanically connected to a movable member (24) of an actuator device (22) so that a variable voltage is applied between the input and output lines (12, 16). The wiper (28) is electrically connected to a negative input of a zero adjust amplifier (50) which has an adjustable positive input. The movable member (24) is moved to its zero position which also moves the wiper (28) to a zero position. At the zero position, the zero adjust amplifier (50) is adjusted to apply a 4 mA current to the output line (16). This is done by applying the output of the zero adjust amplifier (50) through a series of amplifiers to the base of a transistor (60), which has an emitter and collector connected across the input and output lines (12, 16) for converting the voltage signal into a current signal. A span adjust amplifier (54) has a negative input connected to the output of the zero adjust amplifier (50) and has an adjustable feedback (56) from its output to its negative input. The movable member (24) is moved to its maximum position, thus also moving the wiper (28) to a maximum position. The span adjust amplifier (54) is then controlled to apply a 20 mA current signal to the output line (16). As the movable member (24) moves between its minimum and maximum position, a 4-20 mA signal which corresponds to the position of the movable member is applied to the output of the position transmitter.
    • 位置发送器(8)包括具有连接到输入线路(12)的正端子和通过具有可变负载的系统控制器(14)连接的负端子的dc电源(10)。 到输出线(16)。 包括电位计(30)的分压器跨过输入线和输出线(12,16)连接。电位计(30)的擦拭器(281)机械地连接到致动器装置(22)的可移动构件(24) 从而在输入线和输出线(12,16)之间施加可变电压,擦拭器(28)电连接到具有可调正输入的零调整放大器(50)的负输入端,可动构件 在调零放大器(50)被调整为向输出线路(16)施加4mA电流时,这将使刮水器(28)移动到零位置。 是通过将零调整放大器(50)的输出通过一系列放大器施加到晶体管(60)的基极来完成的,该晶体管具有连接在输入和输出线(12,16)两端的发射极和集电极,用于将 电压信号转换为电流信号,量程调整放大器(54)具有连接t的负输入端 o调零放大器(50)的输出,并且从其输出到其负输入具有可调整的反馈(56)。 可动部件(24)移动到其最大位置,从而也使擦拭器(28)移动到最大位置。 然后控制量程调节放大器(54)向输出线(16)施加20mA电流信号。 当可动部件(24)在其最小和最大位置之间移动时,对应于可动部件位置的4-20mA信号被施加到位置发送器的输出端。