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1. 发明授权

US5984070A Overheating protection device for rotational control apparatus 有权
标题翻译：用于旋转控制装置的过热保护装置
公开(公告)号：US5984070A
公开(公告)日：1999-11-16
申请号：US141921
申请日：1998-08-28
申请人： Bradley R. Briggs , William R. Daniels
发明人： Bradley R. Briggs , William R. Daniels
IPC分类号： F01P7/08 , F16D19/00 , F01D7/02
CPC分类号： F01P7/085 , F01P2025/04 , F01P2025/08
摘要： A device (10) is disclosed for intercepting the input of a system (23) of an internal combustion engine (12) normally provided to a solenoid valve (22) for actuating a fan clutch (20). A pressure switch (24) is provided in the pressure line between the solenoid valve (22) and the fan clutch (20). The input is received by terminals (27, 28) and is passed on to a transistor (53) which turns on and allows current flow to the solenoid valve (22) during a first period of time. If a second transistor (48) turns on because the pressure switch (24) remains open as a set point is not sensed in the pressure line and does not discharge a time delay circuit formed by a combination of a resistor (44) and a capacitor (46), then the voltage of the gate of the first transistor (53) is pulled down to turn the transistor (53) off and interrupt the current flow to the solenoid valve (22). When the current flow to the solenoid valve (22) is interrupted, the solenoid valve (22) exhausts the fluid pressure, and actuation of the fan clutch (20) is interrupted.
摘要翻译：公开了一种用于拦截正常设置在电磁阀（22）上用于致动风扇离合器（20）的内燃机（12）的系统（23）的输入的装置（10）。压力开关（24）设置在电磁阀（22）和风扇离合器（20）之间的压力线中。输入由端子（27,28）接收，并被传递到晶体管（53），晶体管（53）在第一时间段期间导通并允许电流流向电磁阀（22）。如果第二晶体管（48）导通，因为压力开关（24）保持打开，因为在压力线中没有检测到设定点，并且不会释放由电阻器（44）和电容器（44）的组合形成的时间延迟电路（46），则第一晶体管（53）的栅极的电压被下拉以使晶体管（53）断开，并且中断到电磁阀（22）的电流。当流向电磁阀（22）的电流中断时，电磁阀（22）排出流体压力，并且中断风扇离合器（20）的致动。

2. 发明授权

US5765672A Overheating protection device for rotational control apparatus 失效
标题翻译：用于旋转控制装置的过热保护装置
公开(公告)号：US5765672A
公开(公告)日：1998-06-16
申请号：US698780
申请日：1996-08-16
申请人： Bradley R. Briggs , William R. Daniels , Charles M. Bastien
发明人： Bradley R. Briggs , William R. Daniels , Charles M. Bastien
IPC分类号： F01P7/04 , F01P7/08 , F01P11/14 , F16D48/06 , F16D43/28 , F01P7/02
CPC分类号： F01P11/14 , F16D48/066 , F01P2025/04 , F01P7/04 , F01P7/08 , F16D2500/1026 , F16D2500/10418 , F16D2500/30401 , F16D2500/3166 , F16D2500/5106 , F16D2500/70406 , F16D2500/7041 , F16D2500/7104
摘要： A device (10) is disclosed for intercepting the input of a system (23) of an internal combustion engine (12) normally provided to a solenoid valve (22) for actuating a fan clutch (20) when rotation of a fan (16) is desired. The input is received by terminals (42, 43) and is conditioned and passed on to a timer (96) and a controller (97). A vacuum switch (24) senses whether the fan (16) is rotating and provides a second input to the controller (97). In the event that an input is provided by the system (23) and the time delay signal has been provided by the timer (96) and also in the event that an input is provided by the system (23), the time delay has expired, and the second input is provided by the vacuum switch (24), the controller (97) provides an actuation output to terminals (71, 73) connected to the solenoid valve (22) by use of actuation provisions (98) to actuate the fan clutch (20). After the time delay signal is no longer provided by the timer (96), the actuation output is interrupted to the fan clutch (20) if one or both of the first and second inputs are interrupted. Thus, device (10) interrupts the actuation of the fan clutch (20) in the event that the fan (16) is unable to rotate for any reason and thereby provides overheating protection for the fan clutch (20).
摘要翻译：公开了一种用于截取通常设置在电磁阀（22）上的内燃机（12）的系统（23）的输入的装置（10），用于当风扇（16）旋转时致动风扇离合器（20）是希望的。输入由端子（42,43）接收并被调节并传递到定时器（96）和控制器（97）。真空开关（24）感测风扇（16）是否旋转，并向控制器（97）提供第二输入。在由系统（23）提供输入并且定时器（96）提供了时间延迟信号的情况下，并且在系统（23）提供输入的情况下，时间延迟已经到期，并且第二输入由真空开关（24）提供，控制器（97）通过使用致动装置（98）向连接到电磁阀（22）的端子（71,73）提供致动输出，以致动风扇离合器（20）。在定时器（96）不再提供时间延迟信号之后，如果第一和第二输入中的一个或两个被中断，则致动输出被中断到风扇离合器（20）。因此，在风扇（16）由于任何原因不能旋转的情况下，装置（10）中断风扇离合器（20）的致动，从而为风扇离合器（20）提供过热保护。

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