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    • 2. 发明申请
    • OIL-FLOODED SCREW COMPRESSOR, MOTOR DRIVE SYSTEM, AND MOTOR CONTROL DEVICE
    • 油压螺杆压缩机,电机驱动系统和电动机控制装置
    • US20100028165A1
    • 2010-02-04
    • US12533097
    • 2009-07-31
    • Hirotaka KAMEYAMasaru YamasakiToshiyuki AjimaMasaharu SenooHideharu TanakaNorinaga Suzuki
    • Hirotaka KAMEYAMasaru YamasakiToshiyuki AjimaMasaharu SenooHideharu TanakaNorinaga Suzuki
    • F04B49/00F04B35/04F04C29/04H02P1/04
    • F04B17/03F04C18/16F04C28/06F04C28/08F04C2270/051F04C2270/19F04C2270/701
    • When an oil-flooded screw compressor is started up in a cold environment after a long halt, start-up torque increases due to the increased viscosity of the oil that has long stayed inside the working chambers of the compressor. This has necessitated drive means with a larger capacity than that required for normal operation.An oil-flooded screw compressor according to the invention comprises: a casing; a pair of rotors each having screw-thread-shaped groove and being housed in the casing; an electric motor for rotationally driving the pair of rotors; a control device for controlling the electric motor; an oil feeding mechanism for feeding oil into working chambers formed by being enclosed by the casing and the pair of rotors in which teeth thereof are meshed to each other; and an oil separating mechanism for separating the oil from compressed gas discharged from the working chambers. The oil-flooded screw compressor drives the 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.
    • 当在长时间停止之后,在冷空气环境中启动一个充油螺杆压缩机时,由于长时间停留在压缩机的工作室内的油的粘度增加,启动扭矩增加。 这需要比正常操作所需的更大的容量的驱动装置。 根据本发明的一种充油螺杆式压缩机包括:壳体; 一对转子,每个转子都具有螺纹形槽并容纳在壳体中; 用于旋转地驱动所述一对转子的电动机; 用于控制电动机的控制装置; 供油机构,用于将油输送到由壳体和由其彼此啮合的一对转子形成的工作室; 以及用于将油与从工作室排出的压缩气体分离的油分离机构。 充油螺杆式压缩机以一定的转速驱动一对转子,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。
    • 3. 发明授权
    • Screw compressor
    • 螺杆压缩机
    • US07862314B2
    • 2011-01-04
    • US11843691
    • 2007-08-23
    • Kohtaro ChibaHirotaka KameyaHideharu Tanaka
    • Kohtaro ChibaHirotaka KameyaHideharu Tanaka
    • F01C21/00F03C2/00F03C4/00
    • F04C18/16F04C2/086F04C29/0007F04C29/068
    • A screw compressor rotatably accommodates, within a casing including a suction port and a delivery port, a pair of female and male rotors under the meshed state and compresses gas in the state where a liquid is mixed by pouring the liquid to the gas confined within a working chamber formed with both rotors and the casing. On the wall surface of the casing opposing to the rotor delivery end, a recessed part is provided. The working chamber is communicated with the recessed part immediately before isolating from the delivery port and this communication is maintained until a volume of the working chamber substantially becomes zero. Thereby, the screw compressor can be control increase in power consumption, vibration, and noise.
    • 螺杆式压缩机在包括吸入口和排出口的壳体内可旋转地容纳在啮合状态下的一对阴阳转子,并且通过将液体倾倒到限制在内部的气体中而将液体混合的状态下压缩气体 工作室与转子和外壳形成。 在与转子输送端相对的壳体的壁面上设置有凹部。 在与输送口隔离之前,工作室与凹陷部分连通,并保持这种连通状态,直到工作室的体积基本上变为零。 因此,螺杆式压缩机可以控制功率消耗,振动和噪声的增加。
    • 4. 发明申请
    • Screw Compressor
    • 螺杆式压缩机
    • US20080080997A1
    • 2008-04-03
    • US11843691
    • 2007-08-23
    • KOHTARO CHIBAHirotaka KameyaHideharu Tanaka
    • KOHTARO CHIBAHirotaka KameyaHideharu Tanaka
    • F04C2/16F04C18/16
    • F04C18/16F04C2/086F04C29/0007F04C29/068
    • A screw compressor rotatably accommodates, within a casing 20 including a suction port and a delivery port 3, a pair of female and male rotors 1, 2 under the meshed state and compresses gas in the state where a liquid is mixed by pouring the liquid to the gas confined within a working chamber 8 formed with both rotors 1, 2 and the casing 20. On the wall surface of the casing 20 opposing to the rotor delivery end, a recessed part 10 is provided. The working chamber 8 is communicated with the recessed part 10 immediately before isolating from the delivery port 3 and this communication is maintained until a volume of the working chamber 8 substantially becomes zero. Thereby, the screw compressor can be control increase in power consumption, vibration, and noise.
    • 螺杆式压缩机在包括吸入口和排出口3的壳体20内可旋转地容纳在啮合状态下的一对阴阳转子1,2,在将液体倒入液体的状态下压缩气体 该气体被限制在形成有转子1,2和壳体20的工作室8内。 在壳体20的与转子输送端相对的壁面上设有凹部10。 在与输送口3隔离之前,工作室8与凹部10连通,并保持连通,直到工作室8的体积基本变为零。 因此,螺杆式压缩机可以控制功率消耗,振动和噪声的增加。
    • 7. 发明申请
    • Oil-Cooled Gas Compressor
    • 油冷气压缩机
    • US20130156548A1
    • 2013-06-20
    • US13818841
    • 2011-08-08
    • Masahiko TakanoHideharu Tanaka
    • Masahiko TakanoHideharu Tanaka
    • F04D29/58
    • F04C29/04F04C18/16F04C2240/81F04C2270/195F05B2260/20F25B31/004F25B43/02Y02P80/152
    • An oil-cooled gas compressor provided with: a compressor body (3); an oil separator (6) that separates out oil from a compressed gas; a gas pipe (8) for sending the compressed gas, from which oil has been separated out by the oil separator, to a user; and an oil pipe (7) for returning, to the compressor, the oil separated out by the oil separator. The following are also provided: an air-cooled heat exchanger (13) for cooling the aforementioned oil; a controllable-speed cooling fan (14) for blowing cooling air at said air-cooled heat exchanger; and a waste-heat-recovery heat exchanger (10), provided upstream of the air-cooled heat exchanger, for recovering heat from the oil flowing through the abovementioned oil pipe. The speed of the cooling fan is controlled so as to bring the temperature of the compressed gas discharged from the compressor body to within a prescribed range. This makes it possible both to recover waste heat from the oil heated by being used to cool the compressor, and to suppress compressor temperature fluctuations even if the load on the waste-heat-recovery equipment varies.
    • 一种油冷式气体压缩机,具备:压缩机体(3); 从压缩气体中分离出油的油分离器(6) 用于将用油分离出油的压缩气体送到使用者的气体管道(8) 以及用于将由油分离器分离出的油返回到压缩机的油管(7)。 还提供以下:用于冷却上述油的风冷式热交换器(13) 用于在所述空气冷却热交换器处吹送冷却空气的可控冷却风扇(14); 以及设置在风冷式热交换器的上游的用于从流过上述油管的油回收热量的废热回收热交换器(10)。 控制冷却风扇的速度使得从压缩机主体排出的压缩气体的温度达到规定范围。 这使得既可以通过用于冷却压缩机来加热的油来回收废热,也能够抑制压缩机温度波动,即使废热回收设备上的负荷变化。
    • 10. 发明授权
    • Air compressor
    • 空气压缩机
    • US08425198B2
    • 2013-04-23
    • US12700189
    • 2010-02-04
    • Hideharu TanakaMasahiko TakanoAkihiro Nagasaka
    • Hideharu TanakaMasahiko TakanoAkihiro Nagasaka
    • F04B49/00
    • F04B49/06F04D27/0292
    • An air compressor 20, for enabling to restart a fan motor when an inverter trip generates within an inverter control of the fan motor, as well as, to continue supplying of compressed air therefrom, comprises: a compressor main body 1; a compressor motor 2 for driving this compressor main body 1; a fan motor 9b for driving a fan 9a; an inverter for controlling the fan motor; and a controller 10 for controlling driving of the compressor motor 2 and driving of the fan motor 9b. The controller 10 conducts such control that the fan motor 9b is brought into a restart waiting condition while continuing operation of the compressor motor 2 when an inverter trip generates, and thereafter to restart the fan motor 9b.
    • 一种空气压缩机20,用于在风扇电动机的逆变器控制期间产生变频器跳闸以及继续从其供应压缩空气时能够重新起动风扇电动机,包括:压缩机主体1; 用于驱动该压缩机主体1的压缩机电动机2; 用于驱动风扇9a的风扇马达9b; 用于控制风扇电动机的逆变器; 以及用于控制压缩机电动机2的驱动和风扇电动机9b的驱动的控制器10。 控制器10进行这样的控制,即当变频器跳闸产生时,继续运行压缩机电动机2,使风扇电动机9b进入重启等待状态,然后重启风扇电动机9b。