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1. 发明申请

US20130145787A1 SCREW COMPRESSOR DRIVE CONTROL 有权
公开(公告)号：US20130145787A1
公开(公告)日：2013-06-13
申请号：US13759728
申请日：2013-02-05
申请人： David M. Foye , Nathan T. West , Dennis M. Beckman , John R. Sauls
发明人： David M. Foye , Nathan T. West , Dennis M. Beckman , John R. Sauls
IPC分类号： F25B49/02 , F04C18/00 , F25B1/047
CPC分类号： F25B49/022 , F04B35/04 , F04C18/00 , F04C18/16 , F04C28/08 , F04C2240/403 , F04C2240/81 , F04C2270/03 , F25B1/047 , F25B49/025 , F25B2600/02 , F25B2600/0253 , Y02B30/741
摘要： An embodiment of method used to control operation of a screw compressor of a refrigeration system may include receiving status signals regarding operation of the screw compressor of the refrigeration system. The method may further include determining an operating point of the screw compressor based upon the received status signals, and selecting a torque profile for the screw compressor based upon the operating point. The method may also include driving the screw compressor per the selected torque profile. Refrigeration systems and compressor systems suitable for implementing the method are also presented.

2. 发明申请

US20110041533A1 SCREW COMPRESSOR DRIVE CONTROL 有权
标题翻译：螺杆压缩机驱动控制
公开(公告)号：US20110041533A1
公开(公告)日：2011-02-24
申请号：US12544582
申请日：2009-08-20
申请人： David M. Foye , Nathan T. West , Dennis M. Beekman , John R. Sauls
发明人： David M. Foye , Nathan T. West , Dennis M. Beekman , John R. Sauls
IPC分类号： F25B49/02 , F25B1/00 , F04B49/06 , F04B49/00
CPC分类号： F25B49/022 , F04B35/04 , F04C18/00 , F04C18/16 , F04C28/08 , F04C2240/403 , F04C2240/81 , F04C2270/03 , F25B1/047 , F25B49/025 , F25B2600/02 , F25B2600/0253 , Y02B30/741
摘要： An embodiment of method used to control operation of a screw compressor of a refrigeration system may include receiving status signals regarding operation of the screw compressor of the refrigeration system. The method may further include determining an operating point of the screw compressor based upon the received status signals, and selecting a torque profile for the screw compressor based upon the operating point. The method may also include driving the screw compressor per the selected torque profile. Refrigeration systems and compressor systems suitable for implementing the method are also presented.
摘要翻译：用于控制制冷系统的螺杆式压缩机的操作的方法的实施例可以包括接收关于制冷系统的螺杆式压缩机的操作的状态信号。该方法还可以包括基于接收到的状态信号来确定螺杆式压缩机的工作点，以及基于操作点选择用于螺杆式压缩机的扭矩分布。该方法还可以包括根据所选择的扭矩分布来驱动螺杆式压缩机。还介绍了适用于实施该方法的制冷系统和压缩机系统。

3. 发明授权

US08365544B2 Screw compressor drive control 有权
标题翻译：螺杆式压缩机驱动控制
公开(公告)号：US08365544B2
公开(公告)日：2013-02-05
申请号：US12544582
申请日：2009-08-20
申请人： David M. Foye , Nathan T. West , Dennis M. Beekman , John R. Sauls
发明人： David M. Foye , Nathan T. West , Dennis M. Beekman , John R. Sauls
IPC分类号： F25B1/00 , F04B49/00
CPC分类号： F25B49/022 , F04B35/04 , F04C18/00 , F04C18/16 , F04C28/08 , F04C2240/403 , F04C2240/81 , F04C2270/03 , F25B1/047 , F25B49/025 , F25B2600/02 , F25B2600/0253 , Y02B30/741
摘要： An embodiment of method used to control operation of a screw compressor of a refrigeration system may include receiving status signals regarding operation of the screw compressor of the refrigeration system. The method may further include determining an operating point of the screw compressor based upon the received status signals, and selecting a torque profile for the screw compressor based upon the operating point. The method may also include driving the screw compressor per the selected torque profile. Refrigeration systems and compressor systems suitable for implementing the method are also presented.
摘要翻译：用于控制制冷系统的螺杆式压缩机的操作的方法的实施例可以包括接收关于制冷系统的螺杆式压缩机的操作的状态信号。该方法还可以包括基于接收到的状态信号来确定螺杆式压缩机的工作点，以及基于操作点选择用于螺杆式压缩机的扭矩分布。该方法还可以包括根据所选择的扭矩分布来驱动螺杆式压缩机。还介绍了适用于实施该方法的制冷系统和压缩机系统。

4. 发明授权

US4411605A Involute and laminated tip seal of labyrinth type for use in a scroll machine 失效
标题翻译：用于涡旋式机器的迷宫式卷边和层叠顶端密封件
公开(公告)号：US4411605A
公开(公告)日：1983-10-25
申请号：US316261
申请日：1981-10-29
申请人： John R. Sauls
发明人： John R. Sauls
IPC分类号： F04C18/02 , F01C1/02 , F01C19/08 , F16J15/16
CPC分类号： F01C19/08
摘要： An involute and tip seal for use in a positive fluid displacement apparatus of the scroll type. A scroll machine wrap element of general spiral configuration about an axis includes a radially inner and outer flank surface terminating in a tip. In the tip, a groove is formed which runs in the longitudinal direction of the wrap element and substantially conforms to its spiral shape. A plurality of material strips, generally coaligned in parallel side-by-side relationship, are disposed within the spiral groove of the involute wrap. One or more of the strips includes a plurality of notches along at least one of the two axial edges. These notches, in conjunction with one or more of the adjacent strips and a flat surface against which the notched edge abuts, define a plurality of labyrinth pockets longitudinally spaced along the strips. The labyrinth surface improves both longitudinal and transverse fluid sealing of the involute tip seal.
摘要翻译：一种用于涡卷式正向流体置换装置的渐开线和尖端密封。围绕轴线的一般螺旋构造的涡卷机包裹件包括终止在尖端中的径向内侧和外侧面。在尖端中，形成有沿着包裹元件的纵向方向延伸并且基本上符合其螺旋形状的凹槽。平行并排关系的多个材料条被布置在渐开线包裹体的螺旋槽内。一个或多个条带沿着两个轴向边缘中的至少一个包括多个凹口。这些凹口与一个或多个相邻条带以及与切口边缘邻接的平坦表面一起限定沿着条带纵向间隔开的多个迷宫式凹坑。迷宫式表面改善了渐开线端头密封件的纵向和横向流体密封。

5. 发明授权

US4389171A Gas compressor of the scroll type having reduced starting torque 失效
标题翻译：具有降低的启动扭矩的涡旋式气体压缩机
公开(公告)号：US4389171A
公开(公告)日：1983-06-21
申请号：US225211
申请日：1981-01-15
申请人： David H. Eber , John R. Sauls
发明人： David H. Eber , John R. Sauls
IPC分类号： F04C18/02 , F04C23/00 , F04C28/06 , F04C28/16 , F04C29/08
CPC分类号： F04C28/16 , F04C18/0215 , F04C28/06 , F04C23/008
摘要： A gas compressor of the scroll type is disclosed wherein means are provided for reducing its degree of compression as it starts from a standing start in order to reduce the initial starting torque required. To this end, passage means are provided which extend through the end plate means of the compressor from a location in communication with the closed moving volumes defined between the wrap elements to a second location in communication with working gas normally at discharge pressure during operation of the compressor. Valve means are associated with the passage means for permitting flow therethrough when the pressure within the closed moving volumes exceeds the discharge pressure at said second location as the compressor starts from a standing start, and for blocking flow therethrough during operation of the compressor when discharge pressure normally exceeds the pressure in the closed moving volumes. In the preferred embodiment, the valve means comprise pressure responsive valve means operative to permit flow through the passage means when the pressure within the closed moving volumes exceeds the discharge pressure at the second location, and to prevent flow therethrough when the discharge pressure at the second location exceeds that within the closed moving volume. Preferably, the passage means comprise first and second individual passages, each having its own associated valve means.
摘要翻译：公开了一种涡旋式气体压缩机，其中提供了用于在从起始开始时减小其压缩程度的装置，以便减少所需的初始起动转矩。为此，提供通道装置，该通道装置从与包封元件之间限定的封闭运动容积连通的位置延伸通过压缩机的端板装置，该第二位置与工作气体通常在排气压力下连通压缩机。当压缩机从立式起动开始时，当封闭移动体积内的压力超过所述第二位置处的排出压力时，阀装置与通道装置相关联，用于允许流过其中，并且当排出压力通常超过封闭移动体积的压力。在优选实施例中，阀装置包括压力响应阀装置，当压力在闭合移动体积内的压力超过第二位置处的排出压力时，可操作以允许流过通道装置，并且当第二位置处的排出压力位置超过封闭移动体积内的位置。优选地，通道装置包括第一和第二单独通道，每个具有其自己的相关联的阀装置。

6. 发明授权

US10941770B2 Variable capacity screw compressor and method 有权
公开(公告)号：US10941770B2
公开(公告)日：2021-03-09
申请号：US12840018
申请日：2010-07-20
申请人： Dennis R. Dorman , John R. Sauls
发明人： Dennis R. Dorman , John R. Sauls
IPC分类号： F04C18/16 , F04C28/08 , F25B49/02 , F25B1/047 , F01C21/02
摘要： A variable capacity screw compressor comprises a suction port, at least two screw rotors and a discharge port being configured in relation to a selected rotational speed that operates at least one screw rotor at an optimum peripheral velocity that is independent of a peripheral velocity of the at least one screw rotor at a synchronous motor rotational speed for a rated screw compressor capacity. A motor is configured to drive the at least one screw rotor at a rotational speed at a full-load capacity that is substantially greater than the synchronous motor rotational speed at the rated screw compressor capacity. A variable speed drive receives a command signal from a controller and generates a control signal that drives the motor at the selected rotational speed. A method for sizing at least two variable capacity screw compressors and a refrigeration chiller incorporating a variable capacity screw compressor are separately presented.

7. 发明申请

US20120017634A1 Variable Capacity Screw Compressor and Method 审中-公开
标题翻译：可变容量螺杆压缩机和方法
公开(公告)号：US20120017634A1
公开(公告)日：2012-01-26
申请号：US12840018
申请日：2010-07-20
申请人： Dennis R. Dorman , John R. Sauls
发明人： Dennis R. Dorman , John R. Sauls
IPC分类号： F25B1/047 , F04B17/03 , F01C1/16
CPC分类号： F04C18/16 , F01C21/02 , F04C28/08 , F04C2210/26 , F04C2270/052 , F25B1/047 , F25B49/025 , F25B2600/021 , Y02B30/741
摘要： A variable capacity screw compressor comprises a suction port, at least two screw rotors and a discharge port being configured in relation to a selected rotational speed that operates at least one screw rotor at an optimum peripheral velocity that is independent of a peripheral velocity of the at least one screw rotor at a synchronous motor rotational speed for a rated screw compressor capacity. A motor is configured to drive the at least one screw rotor at a rotational speed at a full-load capacity that is substantially greater than the synchronous motor rotational speed at the rated screw compressor capacity. A variable speed drive receives a command signal from a controller and generates a control signal that drives the motor at the selected rotational speed. A method for sizing at least two variable capacity screw compressors and a refrigeration chiller incorporating a variable capacity screw compressor are separately presented.
摘要翻译：可变容量的螺杆式压缩机包括吸入口，至少两个螺杆转子和排出口，其相对于所选择的转速被构造，该选择的转速以最佳的圆周速度运行至少一个螺杆转子，该最佳圆周速度独立于在至少一个螺杆转子以同步电机转速为额定螺杆压缩机的容量。电动机构造成以等于额定螺杆压缩机容量的基本上大于同步电动机转速的全负载能力的转速驱动至少一个螺杆转子。变速驱动器接收来自控制器的指令信号，并产生以所选转速驱动电动机的控制信号。分别提出了至少两台可变容量的螺杆式压缩机的尺寸选择方法和包括可变容量螺杆式压缩机的冷冻机。

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