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    • 51. 发明授权
    • Air conditioning systems
    • 空调系统
    • US06247322B1
    • 2001-06-19
    • US09412018
    • 1999-10-04
    • Takashi BanToshiro FujiiTakanori OkabeYoshiyuki Nakane
    • Takashi BanToshiro FujiiTakanori OkabeYoshiyuki Nakane
    • F25B4902
    • F04B27/1804B60H1/00914B60H1/3223F04B2027/1827F04B2027/1872F25B41/04F25B49/022
    • An air conditioning system 100 may include a compressor 101 having a driving chamber 110, a cooling circuit 151, a heating circuit 152 and a controller 189. This system may release high pressure refrigerant from the compressor discharge port 120 into the compressor driving chamber 110 by means of the controller 189. The controller 189 may include a selector 181, a first refrigerant releasing means 183 and a second refrigerant releasing means 185. The selector 181 connects the discharge port 120 and the driving chamber 110 by both the first and second refrigerant releasing means 183, 185 when discharge pressure of the refrigerant has reached a predetermined high-pressure state during operation of the heating circuit 152. When the discharge pressure of the refrigerant results an abnormal high pressure state during the operation of the heating circuit 152, the high pressure refrigerant is released from the discharge port 120 into the driving chamber 110 not only by a single refrigerant releasing means 185 but by double refrigerant releasing means 183, 185. Therefore, the high pressure refrigerant can be swiftly released into the driving chamber 110 to increase the pressure in the driving chamber 110 and the necessary time for reducing the compressor discharge pressure can be minimized. Thus, the abnormal high discharge pressure can be quickly alleviated.
    • 空调系统100可以包括具有驱动室110,冷却回路151,加热回路152和控制器189的压缩机101.该系统可以通过以下方式将高压制冷剂从压缩机排出口120释放到压缩机驱动室110中 控制器189可以包括选择器181,第一制冷剂释放装置183和第二制冷剂释放装置185.选择器181通过第一和第二制冷剂释放而连接排出口120和驱动室110 当制冷剂的排出压力在加热回路152的运行期间达到预定的高压状态时,装置183,185。当制冷剂的排出压力在加热回路152的运行期间导致异常的高压状态时,高 压缩的制冷剂不仅通过单个制冷剂re从排出口120释放到驱动室110中 租赁装置185,但由双重制冷剂释放装置183,185组成。因此,可以将高压制冷剂迅速地释放到驱动室110中,以增加驱动室110中的压力,并且可以最小化压缩机排气压力的必要时间 。 因此,可以快速缓解异常的高排放压力。
    • 52. 发明授权
    • Method and apparatus for controlling variable displacement compressor
    • 用于控制可变排量压缩机的方法和装置
    • US6138468A
    • 2000-10-31
    • US243715
    • 1999-02-03
    • Naoya YokomachiYoshiyuki NakaneTatsuya KoideToshiro Fujii
    • Naoya YokomachiYoshiyuki NakaneTatsuya KoideToshiro Fujii
    • F04B27/18F04B49/06F25B9/00F25B49/02F25B49/00
    • F25B49/022F04B27/1804F04B49/065F25B9/008F04B2027/1818F04B2027/1827F04B2027/1895F04B2207/03F04B2207/041F04B2207/042F25B2309/061F25B2600/17
    • A variable displacement compressor in a refrigeration circuit using carbon dioxide refrigerant. The compressor changes the inclination of a swash plate located in a control chamber in accordance with the difference between the pressure in the control chamber and the pressure in a suction chamber thereby varying the compressor displacement. The compressor includes a control valve that adjusts the difference between the pressure in the control chamber and the pressure in the suction pressure. The control valve controls the flow rate of refrigerant supplied from the discharge chamber to the control chamber thereby adjusting the pressure difference. A controller inputs information from the outside of the refrigeration circuit. The outside information includes the outside temperature, the temperature of a passenger compartment and a target compartment temperature set by a temperature adjuster. The controller sets a target value of the pressure of refrigerant discharged from the compressor in accordance with the outside information. The controller then controls the current supplied to the control valve such that the target discharge pressure is rapidly reached. The compressor reduces unnecessary operation thereby reducing the power consumption and the load.
    • 使用二氧化碳制冷剂的制冷回路中的可变排量压缩机。 压缩机根据控制室中的压力和吸入室中的压力之间的差异改变位于控制室中的斜盘的倾斜度,从而改变压缩机排量。 压缩机包括调节控制室中的压力与吸入压力之间的压力差的控制阀。 控制阀控制从排出室向控制室供给的制冷剂的流量,由此调节压力差。 控制器从制冷回路的外部输入信息。 外部信息包括外部温度,乘客室的温度和由温度调节器设定的目标室温度。 控制器根据外部信息设定从压缩机排出的制冷剂的压力的目标值。 然后,控制器控制提供给控制阀的电流,使得目标排出压力快速达到。 压缩机减少不必要的操作,从而降低功耗和负载。
    • 53. 发明授权
    • Refrigerating system and method of operating the same
    • 制冷系统及其运行方法
    • US6105380A
    • 2000-08-22
    • US292409
    • 1999-04-15
    • Naoya YokomachiTakashi BanToshiro FujiiTatsuya KoideShin Nishida
    • Naoya YokomachiTakashi BanToshiro FujiiTatsuya KoideShin Nishida
    • F25B1/00F04B27/18F25B9/00F25B41/04F25B49/02
    • F25B49/022F04B27/1804F25B41/043F25B9/008F04B2027/1813F04B2027/1827F04B2027/1854F04B2027/1895F25B2309/061F25B2341/063F25B2600/17
    • The present invention relates to a refrigerating system and a method of operating a refrigerating system. The refrigerating system includes a compressor, a gas cooler used as a heat-dissipation type heat exchanger, an expansion valve used as a throttling means, an evaporator used as a heat-absorption type heat exchanger and an accumulator, which are connected in series with each other to form a closed circuit. The closed circuit is adapted so that the higher pressure of the closed circuit becomes the supercritical pressure of a refrigerant circulating the closed circuit. This has a control characteristic property wherein the lower evaporating pressure increases as the higher pressure increases. The lower evaporating pressure and the higher pressure are detected, respectively, and if the detected value of the lower evaporating pressure is lower than a target value for the lower evaporating pressure determined based on the above control characteristic property in correspondence to the detected value of the higher pressure, the discharge capacity of the compressor is reduced so that the lower evaporating pressure coincides with the target value.
    • 本发明涉及制冷系统和操作制冷系统的方法。 制冷系统包括压缩机,用作散热型热交换器的气体冷却器,用作节流装置的膨胀阀,用作吸热型热交换器的蒸发器和蓄能器,它们与 彼此形成闭路。 闭合回路适于使得闭合回路的较高压力成为循环闭合回路的制冷剂的超临界压力。 这具有控制特性,其中较低的蒸发压力随着较高的压力增加而增加。 检测到较低的蒸发压力和较高的压力,并且如果较低蒸发压力的检测值低于根据上述控制特性特性确定的较低蒸发压力的目标值,对应于 较高的压力,压缩机的排放能力降低,使得较低的蒸发压力与目标值一致。
    • 54. 发明授权
    • Piston type compressor with a rotary suction valve
    • 活塞式压缩机带旋转吸气阀
    • US5370506A
    • 1994-12-06
    • US154279
    • 1993-11-18
    • Toshiro FujiiHiromi KitayamaKoichi ItoHitoshi Inukai
    • Toshiro FujiiHiromi KitayamaKoichi ItoHitoshi Inukai
    • F04B39/08F04B39/10F04B1/12
    • F04B39/08F04B39/1073Y10T137/4449
    • A piston type compressor has a plurality of cylinder bores in which a plurality of pistons reciprocate to effect suction, compression and discharge of refrigerant gas in response to rotation of a drive shaft. The compressor has a gas receiving chamber for receiving the refrigerant gas before compression, a discharge chamber for receiving the compressed gas, and at least one rotary valve mounted on the drive shaft to be rotatable with the drive shaft. The rotary valve has a suction passageway for providing fluid communication between the gas receiving chamber and each of the compression chambers formed in the cylinder bores. A groove is provided on the outer circumferential wall of the rotary valve. The groove is connected with the outlet of the suction passageway and extends to a vicinity of the opposing end portions along the outer circumferential wall. The groove supplies the lubricant oil within the refrigerant gas in the suction passageway to and between the outer circumferential wall of the rotary valve and the inner wall of the recessed chamber during the rotation of the rotary valve.
    • 活塞式压缩机具有多个气缸孔,多个活塞在其中往复运动,以响应于驱动轴的旋转而实现制冷剂气体的吸入,压缩和排放。 压缩机具有用于在压缩之前接收制冷剂气体的气体接收室,用于接收压缩气体的排出室,以及安装在驱动轴上以与驱动轴一起旋转的至少一个旋转阀。 旋转阀具有用于在气体容纳室和形成在气缸孔中的每个压缩室之间提供流体连通的抽吸通道。 在旋转阀的外周壁上设置有槽。 凹槽与抽吸通道的出口连接,并沿着外周壁延伸到相对的端部附近。 在旋转阀旋转期间,凹槽将吸入通道内的制冷剂气体中的润滑油供应到旋转阀的外周壁和凹腔的内壁之间。
    • 55. 发明授权
    • Variable displacement rotary pump
    • 可变排量旋转泵
    • US08287255B2
    • 2012-10-16
    • US12546438
    • 2009-08-24
    • Hironao YokoiShigeru SuzukiKatsumi YamashitaToshiro Fujii
    • Hironao YokoiShigeru SuzukiKatsumi YamashitaToshiro Fujii
    • F04B49/24
    • F04C11/001F04C14/02F04C14/065F04C14/26F04C2270/58
    • A variable displacement rotary pump includes a main pump unit, an auxiliary pump unit, a discharge passage, a bypass passage, a suction passage, a check valve and a control valve. The suction passage is in communication with the discharge passage through the bypass passage and a second discharge port. The check valve is disposed in the discharge passage for preventing fluid in a first discharge port of the main pump unit from flowing into the bypass passage. The control valve is operable for opening and closing the bypass passage. When the control valve opens the bypass passage and the check valve closes the discharge passage, flow rate of the fluid discharged from the discharge passage is reduced. A throttle passage is provided in the bypass passage or the control valve for regulating flow of the fluid in early phase of operation of the control valve to open the bypass passage.
    • 可变排量旋转泵包括主泵单元,辅助泵单元,排出通道,旁通通道,吸入通道,止回阀和控制阀。 吸入通路与通过旁路通路的排出通路和第二排出口连通。 止回阀设置在排出通道中,用于防止主泵单元的第一排出口中的流体流入旁通通道。 控制阀可操作以打开和关闭旁路通道。 当控制阀打开旁通通道并且止回阀关闭排出通道时,从排出通道排出的流体的流量减小。 在旁通通道或控制阀中设置有节流通道,用于调节控制阀的早期操作中的流体的流动以打开旁路通道。
    • 58. 发明授权
    • Roots compressor
    • 根压缩机
    • US07287970B2
    • 2007-10-30
    • US11259871
    • 2005-10-26
    • Takayuki HiranoKazuho YamadaToshiro Fujii
    • Takayuki HiranoKazuho YamadaToshiro Fujii
    • F04C2/18F04C29/00
    • F04C18/126F04C2210/10F04C2210/1072F04C2230/91F05C2225/00F05C2225/04
    • A roots compressor has a housing, a rotary shaft, a rotor and a layer. The housing defines a pump chamber, a suction port and a discharge port. The suction port and the discharge port adjoin to the pump chamber. The rotary shaft is rotatably supported by the housing. The rotor is connected to the rotary shaft and contained in the pump chamber. Fluid introduced into the pump chamber through the suction port is discharged to the outside of the pump chamber through the discharge port by rotation of the rotor which is driven through the rotary shaft. The layer is formed on an inner peripheral surface of the housing, which defines the pump chamber. The layer is thinner from a side adjacent to the suction port toward a side adjacent to the discharge port in circumferential direction of the housing.
    • 根压缩机具有壳体,旋转轴,转子和层。 壳体限定泵室,吸入口和排出口。 吸入口和排出口邻近泵室。 旋转轴由壳体可旋转地支撑。 转子连接到旋转轴并容纳在泵室中。 通过吸入口引入泵室的流体通过旋转轴驱动的转子旋转而通过排出口排出到泵室的外部。 该层形成在壳体的内周表面上,其限定泵室。 该层从与吸引口相邻的一侧朝向与壳体的圆周方向的排出口相邻的一侧较薄。