公开(公告)号：US5404964A

公开(公告)日：1995-04-11

申请号：US967329

申请日：1992-10-28

Applicant: Thomas M. Zinsmeyer ,  Vishnu M. Sishtla

Inventor： Thomas M. Zinsmeyer ,  Vishnu M. Sishtla

IPC: F04D25/02 ,  F04D29/04 ,  F04D29/046 ,  F04D29/06 ,  F16H57/04 ,  F25B43/02 ,  F01M11/00

CPC classification number: F04D25/02 ,  F04D29/063 ,  F16H57/0423

Abstract: A gear shroud is provided in close surrounding relationship to the drive gear of a centrifugal compressor such that the turbulence within the surrounding gear housing is substantially reduced and the resulting high speed flow of refrigerant is instead directed into an adjacent oil sump. In order to prevent localized churning in the sump and the resulting cavitation at the oil pump as might be caused by the high velocity flow of refrigeration gas from the gear shroud, a baffle is provided over the oil pump to divert the inflow of gas into other areas of the sump.

Abstract translation: 齿轮护罩与离心式压缩机的驱动齿轮紧密相关地设置，使得围绕齿轮箱内的紊流显着减小，并且所得到的制冷剂的高速流动反而被导向相邻的油底壳。 为了防止油底壳中的局部搅拌和由于来自齿轮罩的制冷气体的高速流动引起的在油泵处产生的空化现象，在油泵上设置挡板以将气体的流入转移到其它 水槽的区域

公开(公告)号：US5209080A

公开(公告)日：1993-05-11

申请号：US822784

申请日：1992-01-21

Applicant: Thomas M. Zinsmeyer

Inventor： Thomas M. Zinsmeyer

IPC: F25B41/00 ,  F16K31/30 ,  F25B39/04 ,  F25B41/06 ,  G05D9/02 ,  G05D16/00

CPC classification number: F16K31/30 ,  F25B41/065 ,  Y10T137/7436

Abstract: A cylindrical standpipe extends upwardly from the bottom of a liquid refrigerant sump, and vertical slots are formed in the sides thereof near the bottom end. On the inner sides of the standpipe, a sleeve is slideably disposed to uncover the slots as the sleeve is vertically raised. On the outer side of the standpipe a toroidal shaped float device, which is secured to the sleeve by a tube extending through upper side slots in the standpipe, is vertically moveable in response to the level of liquid refrigerant in the sump to thereby regulate the sleeve vertical position and therefore the flow of refrigerant from the sump.

Abstract translation: 圆柱形立管从液体制冷剂贮槽的底部向上延伸，并且在其底端附近形成垂直槽。 在立管的内侧，套筒可滑动地布置成当套筒垂直地升高时露出槽。 在立管的外侧，环形浮子装置通过延伸穿过立管中的上侧槽的管固定到套筒上，可响应于贮槽中的液体制冷剂的水平而垂直移动，从而调节套筒 垂直位置，因此来自贮槽的制冷剂流动。

公开(公告)号：US4938664A

公开(公告)日：1990-07-03

申请号：US435129

申请日：1989-11-13

Applicant: Thomas M. Zinsmeyer

Inventor： Thomas M. Zinsmeyer

IPC: F04B39/04 ,  F04D29/06 ,  F04D29/063 ,  F25B31/00

CPC classification number: F04D29/063 ,  F25B31/004

Abstract: In a centrifugal compressor having an ejector for reclaiming the oil which tends to accumulate in a lower portion of the suction housing, the ejector high pressure line is provided with its inlet at the bottom of the collector such that, in addition to providing the high pressure power to the ejector, it also functions to pump out any oil that has accumulated at the bottom of the collector and to discharge it into the oil sump.

公开(公告)号：US5927720A

公开(公告)日：1999-07-27

申请号：US963380

申请日：1997-11-03

Applicant: Thomas M. Zinsmeyer ,  Paul W. Sweet

Inventor： Thomas M. Zinsmeyer ,  Paul W. Sweet

IPC: F04D29/08 ,  F04D17/10 ,  F04D29/04 ,  F04D29/10 ,  F16J15/447

CPC classification number: F04D29/051 ,  F04D29/102

Abstract: In order to accommodate a labyrinth seal whose diameter is too large to form a gas passage using conventional techniques, the labyrinth seal is made in two parts. A first part is an inner ring whose outer diameter is sufficiently small so as to permit the forming of a passage therein with conventional techniques. The second part is an outer ring which can then be fastened to the inner ring so as to then extend, in combination, to the radial extent necessary to complete the sealing engagement with an adjacent element. The outer and inner rings are preferably interconnected by way of an interference fit.

Abstract translation: 为了容纳使用常规技术的直径太大以形成气体通道的迷宫式密封件，迷宫式密封件分成两部分。 第一部分是外径足够小的内圈，以便以常规技术形成通道。 第二部分是外环，然后可以将其紧固到内圈，从而组合地延伸到完成与相邻元件的密封接合所需的径向范围。 外环和内环优选通过过盈配合相互连接。

公开(公告)号：US4611969A

公开(公告)日：1986-09-16

申请号：US766457

申请日：1985-08-19

Applicant: Thomas M. Zinsmeyer

Inventor： Thomas M. Zinsmeyer

IPC: F04D27/00 ,  F01D17/14 ,  F04D17/10 ,  F04D29/46

CPC classification number: F04D29/464 ,  F01D17/143 ,  F04D27/0246

Abstract: An apparatus and method is provided for initializing and calibrating a microprocessor controlled refrigeration system including a centrifugal compressor having a variable width diffuser section.

Abstract translation: 提供一种用于初始化和校准微处理器控制的制冷系统的装置和方法，该制冷系统包括具有可变宽度扩散器部分的离心式压缩机。

公开(公告)号：US4589060A

公开(公告)日：1986-05-13

申请号：US610062

申请日：1984-05-14

Applicant: Thomas M. Zinsmeyer

Inventor： Thomas M. Zinsmeyer

IPC: F25B1/00 ,  F25B1/053 ,  F25B49/00 ,  F25B49/02 ,  G05D23/19 ,  G06F15/46 ,  F25D17/02

CPC classification number: F25B49/022 ,  G05D23/1912

Abstract: A microcomputer system and method for controlling the capacity of a refrigeration system are disclosed. The microcomputer system receives electrical input signals indicative of operator selected settings and refrigeration system operating parameters. The microcomputer system processes these input signals to generate a control signal which is a step function of the temperature difference between a desired set point temperature and the sensed temperature of a heat transfer fluid cooled by operation of the refrigeration system. The width of each step of the step function is directly proportional to a selected capacity control response factor. By selecting different capacity control response factors, capacity control of the refrigeration system is tailored to meet specific job requirements of a particular job application for the refrigeration system.

Abstract translation: 公开了一种用于控制制冷系统容量的微机系统和方法。 微型计算机系统接收指示操作者选择的设置和制冷系统操作参数的电输入信号。 微型计算机系统处理这些输入信号以产生控制信号，该控制信号是期望设定点温度与通过制冷系统的操作冷却的传热流体的感测温度之间的温度差的阶梯函数。 步骤功能的每个步骤的宽度与选定的容量控制响应因子成正比。 通过选择不同的容量控制响应因子，制冷系统的容量控制被定制以满足制冷系统的特定作业应用的特定工作要求。

公开(公告)号：US4539820A

公开(公告)日：1985-09-10

申请号：US610159

申请日：1984-05-14

Applicant: Thomas M. Zinsmeyer

Inventor： Thomas M. Zinsmeyer

IPC: F25B49/00 ,  F25B1/053 ,  F25B49/02 ,  F25D17/02

CPC classification number: F25B49/022 ,  F25B1/053

Abstract: A protective capacity control system and method for controlling the capacity of a refrigeration system are disclosed. The protective capacity control system receives electrical input signals indicative of operator selected settings and refrigeration system operating parameters. These input signals are processed to generate a control signal which is a step function, preferably having two steps, of the temperature difference between a desired set point temperature and the sensed temperature of a heat transfer fluid cooled by operation of the refrigeration system. The capacity of the refrigeration system is reduced at a first effective overall rate to provide capacity control which will reduce hunting by the capacity control system when the sensed temperature of the heat transfer fluid cooled by operation of the refrigeration system is less than a lower limit of a selected temperature deadband relative to the desired set point temperature. The capacity of the refrigeration system is reduced at a second effective overall rate, greater than the first effective overall rate, when the sensed temperature of the heat transfer fluid cooled by operation of the refrigeration system is less than a second, predetermined temperature limit which is less than the lower limit of the selected temperature deadband relative to the set point temperature to prevent freezing of the heat transfer fluid cooled by operation of the refrigeration system.

Abstract translation: 公开了一种用于控制制冷系统的容量的保护能力控制系统和方法。 保护能力控制系统接收指示操作者选择的设置和制冷系统操作参数的电输入信号。 对这些输入信号进行处理，以生成控制信号，该控制信号是期望的设定点温度与由制冷系统的操作冷却的传热流体的感测温度之间的温度差的步骤功能，优选地具有两个步骤。 制冷系统的容量以第一有效整体速率降低，以提供容量控制，当通过制冷系统的操作冷却的传热流体的感测温度低于容量控制系统的下限 相对于所需设定点温度的选定温度死区。 当通过制冷系统的操作冷却的传热流体的感测温度小于第二预定温度极限时，制冷系统的容量以大于第一有效总速率的第二有效总速率减小， 小于所选择的温度死区相对于设定点温度的下限，以防止通过制冷系统的操作冷却的传热流体的冻结。

公开(公告)号：US4531375A

公开(公告)日：1985-07-30

申请号：US610066

申请日：1984-05-14

Applicant: Thomas M. Zinsmeyer

Inventor： Thomas M. Zinsmeyer

IPC: F25B43/00 ,  F25B43/04

CPC classification number: F25B43/043

Abstract: A refrigeration system is disclosed having a purge system with means for monitoring operation of the purge system and for taking corrective action in response to excessive purge system operation. Preferably, the monitoring means is a microcomputer control system for monitoring purge pump operation to determine if the purge pump has operated continuously for a period of time greater than a predetermined amount of time. If the purge pump has operated continuously for a period of time greater than the predetermined amount of time, then the microcomputer control system overrides normal purge pump operation and maintains the purge pump inoperative for a selected time period before attempting to resume normal operation. The microcomputer control system counts the number of consecutive times that normal purge pump operation is overridden and totally disables the purge system if the number of consecutive overrides exceeds a preselected number.

Abstract translation: 公开了一种具有清洗系统的制冷系统，该净化系统具有用于监视清洗系统的操作的装置，并且响应于过度的净化系统操作采取校正动作。 优选地，监视装置是用于监视清洗泵操作的微型计算机控制系统，以确定净化泵是否连续运行大于预定时间量的时间。 如果清洗泵连续运转大于预定时间的时间，则在尝试恢复正常运行之前，微机控制系统将覆盖正常的清洗泵操作并保持清洗泵不工作一段选定的时间。 微机控制系统计算连续次数超过普通清洗泵运行次数，如果连续重写次数超过预先选定的次数，则完全禁用吹扫系统。

公开(公告)号：US06814540B2

公开(公告)日：2004-11-09

申请号：US10277861

申请日：2002-10-22

Applicant: Vishnu M. Sishtla ,  Thomas M. Zinsmeyer

Inventor： Vishnu M. Sishtla ,  Thomas M. Zinsmeyer

IPC: F04D2946

CPC classification number: F04D29/462 ,  F04D27/0246 ,  F05D2250/52

Abstract: A vaned diffuser for a centrifugal compressor has provision for selectively adjusting the pitch of the vanes in order to accommodate variable load conditions. Each of the vanes is rotatable about a pivot pin near its leading edge and is engaged with an actuation member near its trailing edge. The actuation members are attached to a common ring which can be selectively rotated to move to the vanes in unison. The ring is supported by rollers at its outer periphery and is positioned at the outer periphery of a diffuser wall such that there is no forward facing step projecting into the flow stream. A throat is defined between adjacent vanes, and the pivot pin for each vane is located downstream of the throat on the pressure side of the vane to reduce turbulence in the flow at the throat.

Abstract translation: 用于离心式压缩机的叶片式扩散器具有选择性地调节叶片间距以适应可变载荷条件。 每个叶片可绕枢轴销在其前缘附近旋转，并且在其后缘附近与致动构件接合。 致动构件附接到公共环，公共环可以选择性地旋转以一致地移动到叶片。 该环由其外周边的辊支撑，并且位于扩散壁的外周边，使得没有向前突出的流动流。 在相邻叶片之间限定了喉部，并且用于每个叶片的枢轴销位于叶片的压力侧上的喉部的下游，以减少喉部处的流动中的湍流。

公开(公告)号：US06547520B2

公开(公告)日：2003-04-15

申请号：US09863228

申请日：2001-05-24

Applicant: Thomas M. Zinsmeyer ,  James R. Barrett ,  Vishnu M. Sishtla

Inventor： Thomas M. Zinsmeyer ,  James R. Barrett ,  Vishnu M. Sishtla

IPC: F04W2946

CPC classification number: F04D29/462 ,  F04D27/0246 ,  F05D2250/52

Abstract: A vaned diffuser for a centrifugal compressor has provision for selectively adjusting the pitch of the vanes in order to accommodate variable load conditions. Each of the vanes is rotatable about a pivot pin near its leading edge and is engaged with an actuation member near its trailing edge. The actuation members are attached to a common ring which can be selectively rotated to move to the vanes in unison. The ring is supported by rollers at its outer periphery and is positioned at the outer periphery of a diffuser wall such that there is no forward facing step projecting into the flow stream.

Abstract translation: 用于离心式压缩机的叶片式扩散器具有选择性地调节叶片间距以适应可变载荷条件。 每个叶片可绕枢轴销在其前缘附近旋转，并且在其后缘附近与致动构件接合。 致动构件附接到公共环，公共环可以选择性地旋转以一致地移动到叶片。 该环由其外周边的辊支撑，并且位于扩散壁的外周边，使得没有向前突出的流动流。