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    • 2. 发明申请
    • Virtual controller for mixed air low temperature protection of HVAC systems
    • HVAC系统混合空气低温保护虚拟控制器
    • US20060130502A1
    • 2006-06-22
    • US11014603
    • 2004-12-16
    • Richard WruckLarry Weber
    • Richard WruckLarry Weber
    • F25B49/00F25D17/00F25D17/04
    • F24F7/08F24F11/30F24F13/08F24F2011/0006F24F2110/00F24F2110/10F24F2110/20F24F2110/70
    • A method for protecting an HVAC system of an air handling unit from low temperature outdoor ventilation air. The air handling unit may include an outdoor fresh air region, a return air region, a supply air region, and a damper situated in or adjacent to the fresh air region to regulate the flow of outdoor air into the air handling unit. The air handling unit mixes the outdoor fresh air and the return air to provide a mixed air stream to the HVAC system. In one illustrative embodiment, one or more sensors are used to measure the temperature and flow rate of the air entering or passing through the outdoor fresh air region, the temperature of the air entering or passing through the return air region and the flow rate of the air passing through the supply air region. The temperature of the mixed air stream, which is provided to the HVAC system, is then calculated using a controller or the like. In some cases, when the temperature of the mixed air stream falls below a threshold value, the controller may instruct the damper to close and reduce the fresh outdoor air that is brought into the air handler unit. Various other embodiments and algorithms are disclosed.
    • 一种从低温室外通风空气中保护空气处理单元的HVAC系统的方法。 空气处理单元可以包括位于或邻近新鲜空气区域的室外新鲜空气区域,返回空气区域,供应空气区域和阻尼器,以调节进入空气处理单元的室外空气的流动。 空气处理单元将室外新鲜空气和回流空气混合,以向HVAC系统提供混合气流。 在一个说明性实施例中,使用一个或多个传感器来测量进入或通过室外新鲜空气区域的空气的温度和流量,进入或通过返回空气区域的空气的温度和 空气通过供气区域。 然后,使用控制器等来计算提供给HVAC系统的混合空气流的温度。 在某些情况下,当混合空气流的温度低于阈值时,控制器可以指示风门关闭并减少送入空气处理器单元的新鲜室外空气。 公开了各种其他实施例和算法。
    • 6. 发明申请
    • ACTUATOR HAVING A TEST MODE
    • 具有测试模式的执行器
    • US20130103324A1
    • 2013-04-25
    • US13278694
    • 2011-10-21
    • Daniel WaseenBruce S. JohnsonLarry WeberPaul Wacker
    • Daniel WaseenBruce S. JohnsonLarry WeberPaul Wacker
    • G06F19/00
    • B60H1/00857B60H1/00964B60Y2304/09
    • An actuator system which may incorporate a motor, a motor controller connected to the motor, a processor connected to the motor controller, and a switch connected to the processor for engaging the motor to open and close an actuator shaft. The switch may have a position which is a test mode. Selecting the position of test mode may cause the motor to move the actuator shaft to a certain position to verify operation of the actuator shaft. The actuator shaft may stay in the certain position while the switch is in a position of test mode. The system may also incorporate a spring attached to the actuator shaft. If power fails to the motor, then the actuator spring or another mechanism may return the actuator shaft to a fail safe position. The test mode may alternatively be selected at a controller via the communications bus to the processor.
    • 可以包括电动机的致动器系统,连接到电动机的电动机控制器,连接到电动机控制器的处理器和连接到处理器的开关,用于接合电动机以打开和关闭致动器轴。 开关可以具有作为测试模式的位置。 选择测试模式的位置可能导致电机将执行器轴移动到一定位置,以验证执行器轴的运行。 当开关处于测试模式的位置时,致动器轴可能停留在特定位置。 该系统还可以包括附接到致动器轴的弹簧。 如果电机电源失效,则执行机构弹簧或其他机构可能会将执行器轴返回到故障安全位置。 可以在控制器处通过通信总线选择测试模式到处理器。
    • 7. 发明申请
    • Apparatus and method for compression molding a chair mat
    • 用于压缩成型椅垫的装置和方法
    • US20060138689A1
    • 2006-06-29
    • US11025533
    • 2004-12-29
    • John EndrudLarry Weber
    • John EndrudLarry Weber
    • B29C43/02
    • B29C43/34B29C31/06B29C31/08B29C2043/3411B29C2043/3466
    • An apparatus is disclosed for compression molding a chair mat. The apparatus includes an extruder for extruding a quantity of accurately weighed melted polymer. A polymer transfer tray is disposed adjacent to the extruder for receiving the quantity of accurately weighed melted polymer thereon. A forming press is disposed downstream from the extruder for compression molding the quantity of accurately weighed melted polymer. A conveyor is provided for moving the polymer transfer tray with the quantity of melted polymer thereon from the extruder to the press. The forming press includes a first mold for molding an upper impression of the chair mat. A second mold is provided for molding a lower impression of the chair mat. The first and second molds are movable relative to each other from an open disposition thereof for permitting loading of the quantity of accurately weighed melted polymer between the molds to a closed disposition of the molds in which the molds are moved towards each other for compression molding the quantity of weighed melted polymer between the molds.
    • 公开了一种用于压缩模制椅垫的装置。 该设备包括用于挤出一定数量的精确称量的熔融聚合物的挤出机。 聚合物转移托盘邻近挤出机设置,用于接收在其上精确称量的熔融聚合物的量。 成形压机设置在挤压机的下游,用于压缩成型精确称量的熔融聚合物的量。 提供一种输送机,用于将聚合物转移盘移动到其上的熔融聚合物的量从挤出机到压机。 成型压机包括用于模制椅垫的上部印模的第一模具。 提供了用于模制椅垫的较低印象的第二模具。 第一模具和第二模具可以相对于其开放的布置相对移动,以允许在模具之间加载精确称量的熔融聚合物的量到模具的封闭布置,其中模具朝向彼此移动以压缩成型 模具之间称量的熔融聚合物的量。