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公开(公告)号：US08882476B2
公开(公告)日：2014-11-11
申请号：US13932149
申请日：2013-07-01
发明人： Hirotaka Kameya , Masaru Yamasaki , Toshiyuki Ajima , Masaharu Senoo , Hideharu Tanaka , Norinaga Suzuki
CPC分类号： F04B17/03 , F04C18/16 , F04C28/06 , F04C28/08 , F04C2270/051 , F04C2270/19 , F04C2270/701
摘要： An oil-flooded screw compressor drives a pair of rotors at a rotational speed which is low enough not to increase torque for a short amount of time after start-up and accelerates the pair of rotors up to a normal-operation rotational speed after oil discharge. Alternatively, the oil-flooded screw compressor rotates the pair of rotors for a short amount of time after the remaining compressed gas is discharged after a halt, thereby allowing the oil accumulated inside the working chambers to be discharged and ensuring smooth start-up after the halt.
摘要翻译： 充油螺杆式压缩机驱动一对转子，旋转速度足够低，在启动后不会在短时间内增加扭矩，并且在排油后将一对转子加速至正常操作转速 。 或者，油压螺杆式压缩机在停止后剩余的压缩气体排出之后使一对转子旋转一段时间，从而允许积聚在工作室内的油排出，并确保顺利启动 停。
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公开(公告)号：US11933291B2
公开(公告)日：2024-03-19
申请号：US17628466
申请日：2020-07-28
IPC分类号： F04B49/10 , F04B49/02 , F04B49/06 , F04B51/00 , F04C28/28 , G01R31/26 , G05B23/02 , F04C18/16 , H02P29/02
CPC分类号： F04B49/10 , F04B49/02 , F04B49/065 , F04B51/00 , F04C28/28 , G01R31/2642 , G05B23/0283 , F04C18/16 , F04C2240/40 , F04C2240/808 , F04C2270/025 , F04C2270/16 , F04C2270/18 , F04C2270/19 , F04C2270/80 , H02P29/02
摘要： A compressor, a monitoring system and a method of monitoring a compressor that make it possible to monitor the remaining lifetime of a semiconductor element of a motor control system while the processing load is reduced are provided. A compressor (1) includes: a motor control system (10) that controls the rotation speed of a motor (2); a compressor body (3) that compresses air by being driven by the motor (2); a pressure sensor (20) that is provided on the discharge side of the compressor body (3); and a running controller (11) that performs switching between load running and no-load running on the basis of the pressure sensed by the pressure sensor (20). A motor controller (26) of the motor control system (10) calculates a relative temperature of a semiconductor element relative to a reference temperature by using a temperature of the semiconductor element sensed by a temperature sensor (27) at the time of switching from no-load running to load running, and calculates an amount of change in a remaining lifetime of the semiconductor element corresponding to the relative temperature of the semiconductor element, whereby monitoring the remaining lifetime of the semiconductor element.
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公开(公告)号：US20130294932A1
公开(公告)日：2013-11-07
申请号：US13932149
申请日：2013-07-01
发明人： Hirotaka Kameya , Masaru Yamasaki , Toshiyuki Ajima , Masaharu Senoo , Hideharu Tanaka , Norinaga Suzuki
IPC分类号： F04B17/03
CPC分类号： F04B17/03 , F04C18/16 , F04C28/06 , F04C28/08 , F04C2270/051 , F04C2270/19 , F04C2270/701
摘要： An oil-flooded screw compressor drives a pair of rotors at a rotational speed which is low enough not to increase torque for a short amount of time after start-up and accelerates the pair of rotors up to a normal-operation rotational speed after oil discharge. Alternatively, the oil-flooded screw compressor rotates the pair of rotors for a short amount of time after the remaining compressed gas is discharged after a halt, thereby allowing the oil accumulated inside the working chambers to be discharged and ensuring smooth start-up after the halt.
摘要翻译： 充油螺杆式压缩机驱动一对转子，旋转速度足够低，在启动后不会在短时间内增加扭矩，并且在排油后将一对转子加速至正常操作转速 。 或者，油压螺杆式压缩机在停止后剩余的压缩气体排出之后使一对转子旋转一段时间，从而允许积聚在工作室内的油排出，并确保顺利启动 停。
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