公开(公告)号：US4507064A

公开(公告)日：1985-03-26

申请号：US384027

申请日：1982-06-01

申请人： Erich J. Kocher ,  Paul G. Szymaszek ,  John G. Nikolaus

发明人： Erich J. Kocher ,  Paul G. Szymaszek ,  John G. Nikolaus

IPC分类号： F04C18/356 ,  F04C23/00 ,  F04C18/00 ,  F04C29/02 ,  F16K15/02

CPC分类号： F04C23/001 ,  F04C18/3564

摘要： A multi-cylinder single-stage rotary rolling piston type gas compressor comprises four modular cylinder housings, partitions and end covers bolted together in end-to-end arrangement. Each cylinder housing includes an inner wall which defines a centrally located cylinder chamber and vane slot and an outer wall which defines a suction chamber, a discharge chamber and an oil chamber or reservoir surrounding the cylinder chamber. The four suction chambers are connected together end-to-end to a common gas inlet port. The four discharge chambers are connected together end-to-end to a common gas discharge port. The four oil chambers are connected together end-to-end. An internally lubricated rotor assembly extends axially through the four cylinder chambers and comprises a shaft rotatably supported on the end covers. The shaft has four eccentric crankarms on which four roller pistons are rotatably mounted, one for each cylinder chamber. The two central pistons are angularly displaced 180.degree. from the two end pistons to provide balance. The rotor shaft drives an oil pump connection to the oil reservoir. Each vane slot for a cylinder chamber has at least one reciprocably movable low-mass hollow externally-grooved spring-biased gas-pressurized vane slidably mounted therein and slidably engaged with an associated roller piston. Each cylinder chamber has a gas suction port in the inner wall on one side of the vane slot communicating with the suction chamber. Each cylinder chamber has a plurality of gas discharge ports in the inner wall on the other side of the vane slot and each discharge port accommodates a spring- and gas-pressure biased, normally closed, gas-operated poppet type discharge valve which allow complete gas expulsion to the discharge chamber.

摘要翻译： 多缸单级旋转活塞式气体压缩机包括四个模块化气缸壳体，分隔件和端盖，端对端布置螺栓连接。 每个气缸壳体包括限定中心定位的气缸室和叶片槽的内壁和限定吸入室，排出室和围绕气缸室的油室或储存器的外壁。 四个抽吸室端对端连接到公共气体入口。 四个放电室端对端连接到公共气体排出口。 四个油室端对端连接在一起。 内部润滑的转子组件轴向地延伸穿过四个气缸室，并且包括可旋转地支撑在端盖上的轴。 轴具有四个偏心曲柄臂，四个滚子活塞可旋转地安装在其上，一个用于每个气缸室。 两个中心活塞从两端活塞角度位移180°，以提供平衡。 转子轴驱动与油箱的油泵连接。 用于气缸室的每个叶片槽具有可滑动地安装在其中的至少一个可往复移动的低质量中空的外槽弹簧偏压气体加压叶片，并与相关联的滚子活塞可滑动地接合。 每个气缸室在与抽吸室连通的叶片槽的一侧的内壁中具有气体吸入口。 每个气缸室在叶片槽的另一侧的内壁中具有多个气体排出口，并且每个排出口容纳弹簧和气体压力偏压的常闭气体操作的提升阀式排放阀，其允许完全气体 排出到排放室。

公开(公告)号：US4704069A

公开(公告)日：1987-11-03

申请号：US908016

申请日：1986-09-16

申请人： Erich J. Kocher ,  Paul G. Szymaszek

发明人： Erich J. Kocher ,  Paul G. Szymaszek

IPC分类号： F04B49/00 ,  F04B49/02 ,  F04C18/16 ,  F04C18/20 ,  F04C28/12

CPC分类号： F04C28/125 ,  F04C18/52

摘要： A method is disclosed for operating a large motor-driven refrigeration gas compressor which has independently movable suction and discharge slide valves to prevent undesirable, possibly damaging hydraulic pressure build-up caused by sealing oil remaining in the gas compression chambers during compressor start-up. While the compressor is started and brought up to full speed, the suction slide valve is disposed in fully unloaded position to fully open the gas suction port and the discharge slide valve is disposed in position to fully open the gas discharge port to enable excess oil in the gas compression chambers to exit freely through the compressor gas discharge port before oil pressure build-up can occur. When the compressor is at full speed, the suction slide valve is positioned to maintain a desired gas suction pressure and the discharge slide valve is positioned to equalize gas pressure between the gas compression chambers and the compressor gas discharge port. On shut-down of the compressor both slide valves are returned to their start-up positions.

摘要翻译： 公开了一种用于操作具有可独立移动的吸入和排出滑阀的大型电动制冷气体压缩机的方法，以防止在压缩机起动期间由气体压缩室中残留的密封油引起的不希望的，可能损坏的液压积聚。 当压缩机起动并达到全速时，吸入滑阀设置在完全卸载位置，以完全打开气体吸入口，并且排出滑阀设置在完全打开气体排出口的位置，以使过多的油在 在油压累积之前可以通过压缩机气体排出口自由排出的气体压缩室。 当压缩机处于全速时，吸入滑阀被定位成保持所需的气体吸入压力，并且排出滑阀被定位成使气体压缩室和压缩机气体排出口之间的气体压力相等。 在关闭压缩机时，两个滑阀都返回到启动位置。

公开(公告)号：US4923173A

公开(公告)日：1990-05-08

申请号：US429015

申请日：1989-10-30

申请人： Paul G. Szymaszek ,  Earl Schumacher

发明人： Paul G. Szymaszek ,  Earl Schumacher

IPC分类号： F16K1/36 ,  F16K1/46

CPC分类号： F16K1/46 ,  F16K1/36 ,  F16K1/482

摘要： In a disc-type stop valve, a valve disc located at the lower end of a rotatable valve stem takes the form of a solid cylindrical metal member having an annular groove formed around the periphery of its lower surface in which an annular resiliently deformable plastic seal ring is disposed. The seal ring is held in place by a smaller-diameter circular metal retainer plate which is secured by bolts against the lower surface of the valve disc and against the underside of seal ring. When the valve is closed, a circumferential lower edge of the seal ring bears against a conically-shaped annular metal valve seat surface in the valve body. A large-diameter resilient compressible conventional O-ring is disposed in an annular space defined by the rear side of the retainer plate, the annular inner edge of the seal ring and a chamfered edge along the intersection of the lower surface and the side edge of the valve disc. The O-ring operates, when compressed, to effect a seal in a space between the seal ring and the retainer plate valve disc without requiring maximum compression of the seal ring. Furthermore, when the valve is in operation and partially cracked open, fluid at high pressure is prevented by the O-ring from getting behind the seal ring and forcing it laterally outwardly further increasing the possibility of leakage fluid leakage. A vent hole for pressure relief extends through the valve disc and communicates with the space between the valve disc and the seal ring to insure inner and outer edges of the seal ring are at equal pressures.

摘要翻译： 在盘式截止阀中，位于可旋转阀杆下端的阀盘呈实心圆柱形金属件的形式，该圆柱形金属件具有围绕其下表面的周边形成的环形槽，在该圆周金属件的环形可弹性变形的塑料密封 环被处置。 密封环通过较小直径的圆形金属保持板保持在适当位置，该金属保持板通过螺栓固定在阀盘的下表面上并抵靠密封环的下侧。 当阀关闭时，密封环的周向下边缘抵靠阀体中的锥形环形金属阀座表面。 大直径弹性可压缩的常规O形环设置在由保持板的后侧，密封环的环形内边缘和沿着下表面和侧边缘的相交处的倒角边缘限定的环形空间中 阀盘。 O形圈在被压缩时操作，以在密封环和保持板阀盘之间的空间中进行密封，而不需要密封环的最大压缩。 此外，当阀门运行并且部分开裂时，O形环防止在高压下的流体进入密封环的后面并强制横向向外进一步增加漏液泄漏的可能性。 用于压力释放的通气孔延伸穿过阀盘并与阀盘和密封环之间的空间连通，以确保密封环的内部和外部边缘处于相等的压力。

公开(公告)号：US07677527B2

公开(公告)日：2010-03-16

申请号：US11367615

申请日：2006-03-03

申请人： Paul G. Szymaszek

发明人： Paul G. Szymaszek

IPC分类号： F16K31/12

CPC分类号： F16K31/42 ,  F16K31/122 ,  F16K31/1245 ,  F25B41/043 ,  F25B47/022

摘要： A dual position pilot operated valve assembly having a main piston, with a valve member, reciprocable within a valve body, wherein the valve body is adapted for sealingly mating with a valve seat and passage located intermediate the valve body inlet and outlet ports, the valve body having a cylindrical adapter secured to an open end thereof and housing a secondary piston, reciprocable therein, with an axial stem depending from the second piston bottom surface and extending through the adaptor to the first piston cavity for intermittent contact therewith; and an end cap secured to and closing the adapter and having an inlet port interconnected with a source of high pressure control gas and respective first and second conduits leading to the main and secondary piston bore cavities, with an adjustment mechanism controlling the degree of opening/closing of the valve assembly. Several methods of operation are also set forth.

摘要翻译： 一种双位置先导式操作阀组件，其具有主活塞，具有可在阀体内往复运动的阀构件，其中阀体适于与位于阀体入口和出口之间的阀座和通道密封配合，阀 主体具有固定到其开口端的圆柱形适配器并且容纳可往复运动的第二活塞，其中轴向杆从第二活塞底表面悬垂并且延伸穿过适配器到第一活塞腔以与其间歇性接触; 以及固定到并关闭适配器并具有与高压控制气体源相互连接的入口端口和通向主活塞孔和次级活塞孔腔的相应的第一和第二导管的端盖，调节机构控制开启/ 关闭阀门组件。 还阐述了几种操作方法。

公开(公告)号：US4610613A

公开(公告)日：1986-09-09

申请号：US740817

申请日：1985-06-03

申请人： Paul G. Szymaszek

发明人： Paul G. Szymaszek

IPC分类号： F04C18/16 ,  F04C18/52 ,  F04C18/54 ,  F04C28/12 ,  F04C18/20

CPC分类号： F04C28/125 ,  F04C18/52

摘要： A rotary screw gas compressor for a refrigeration system comprises a motor-driven single main rotor having helical grooves and mounted for rotation in a rotor bore in the compressor housing and a pair of star-shaped gate rotors rotatably mounted in the housing and engageable with the helical grooves to define a plurality of compression chambers. A suction slide valve member is slidably positionable (between full load and unload positions) to control where low pressure uncompressed refrigerant gas from a suction port is admitted to the compression chambers to thereby function as a suction bypass to control compressor capacity. A discharge slide valve member is slidably positionable (between minimum and adjusted volume ratio positions) to control where high pressure compressed refrigerant gas is expelled from the compression chambers to a discharge port to thereby control the volume ratio and thereby the input power to the compressor. Both slide valve members are disposed in side-by-side sliding relationship in a common recess in the compressor housing which extends alongside and communicates with the rotor bore and each has a face which is complementary to and confronts the main rotor surface in sliding sealed relationship. The slide valve members are independently movable by separate piston-cylinder type hydraulic actuators. A control system responsive to compressor capacity and volume ratio operates the actuators to position the slide valve members to cause the compressor to operate at a predetermined capacity and minimum power input. The control system includes sensing devices to detect the position of the slide valve members.

摘要翻译： 一种用于制冷系统的旋转式螺杆式气体压缩机，包括具有螺旋槽的马达驱动的单个主转子，并安装成用于在压缩机壳体中的转子孔中旋转，以及可旋转地安装在壳体中的一对星形门转子， 螺旋槽以限定多个压缩室。 吸入滑阀构件可滑动地定位（在满载和卸载位置之间），以控制来自吸入口的低压未压缩制冷剂气体进入压缩室的位置，从而用作控制压缩机容量的抽吸旁路。 排出滑阀构件可滑动地定位（在最小和调节体积比位置之间），以控制高压压缩制冷剂气体从压缩室排出到排出口的位置，从而控制体积比，从而控制压缩机的输入功率。 两个滑动阀构件在压缩机壳体中的共同的凹部中并排设置，该凹部沿着与转子孔相连并且与转子孔连通并且每个具有与主转子表面以滑动密封关系互补和面对的面 。 滑阀构件可独立地通过单独的活塞 - 气缸式液压致动器来移动。 响应于压缩机容量和体积比的控制系统操作致动器以定位滑阀构件以使压缩机以预定容量和最小功率输入进行操作。 控制系统包括用于检测滑阀构件的位置的感测装置。

公开(公告)号：US4419865A

公开(公告)日：1983-12-13

申请号：US336501

申请日：1981-12-31

申请人： Paul G. Szymaszek

发明人： Paul G. Szymaszek

IPC分类号： F04C29/02 ,  F04C11/00 ,  F04C29/04 ,  F25B1/047 ,  F25B43/02 ,  F25B31/00

CPC分类号： F25B43/02 ,  F04C11/003 ,  F04C29/042 ,  Y10S62/02

摘要： The invention relates to improvements in a refrigeration system having an oil cooled screw compressor from which mixed oil and compressed refrigerant issues to an oil separator via a discharge duct, and wherein a refrigerant pump draws liquid refrigerant from the high pressure receiver and delivers it to the discharge duct to cool the oil and desuperheat the refrigerant. The refrigerant pump and a hydraulic motor that drives it are in a single sealed housing. The hydraulic motor is energized with pressure oil from the oil pump whereby oil is returned to the compressor from the oil separator. Oil flow to the hydraulic motor is throttled in accordance with output from a temperature sensor at the discharge duct, to maintain a constant temperature of oil-refrigerant mixture passing to the oil separator. A standpipe arrangement prevents cavitation at the refrigerant pump.

摘要翻译： 本发明涉及具有油冷螺杆式压缩机的制冷系统的改进，混合油和压缩的制冷剂经由排放管道向油分离器发出，并且其中制冷剂泵从高压接收器中抽取液体制冷剂并将其输送到 排放管道以冷却油并使制冷剂过热。 制冷剂泵和驱动它的液压马达处于单个密封外壳中。 液压马达用油泵的压力油通电，油从油分离器返回压缩机。 根据排出管道上的温度传感器的输出，液压马达的油流量被节流，以保持通过油分离器的油 - 制冷剂混合物的恒定温度。 立管布置可防止制冷剂泵发生气蚀。

公开(公告)号：US4906264A

公开(公告)日：1990-03-06

申请号：US406453

申请日：1989-09-13

申请人： Paul G. Szymaszek ,  Robert J. Schintgen

发明人： Paul G. Szymaszek ,  Robert J. Schintgen

IPC分类号： B01D17/038 ,  B01D17/04 ,  F25B43/02

CPC分类号： F25B43/02 ,  B01D17/045 ,  F25B2400/02

摘要： An oil separator operates to remove oil entrained in a refrigerant being circulated in a refrigeration system, especially a system using a screw-type compressor. The oil separator generally comprises a vessel having a chamber therein and a perforated plate on which oil coalescing elements are mounted divides the chamber into a lower primary oil separator section and an upper secondary oil separator section. A mixture inlet pipe extends through a side of the tank into the lower section for admitting a pressurized mixture of refrigerant and oil. A refrigerant gas outlet port is provided in the upper section for expelling refrigerant from which the oil has been separated. An oil outlet port is provided in the lower section for expelling oil collected in an oil sump at the bottom of the lower section. The inlet mixture pipe defines a passage which comprises a straight horizontal portion and a curved and downwardly sloped portion which terminates in a discharge opening near a curved inner surface of the vessel wall. As the mixture of refrigerant gas with oil entrained therein flows through the passage, oil droplets separate from the refrigerant under centrifugal force along the outer curved wall surface of the passage, exit by gravity and under the force of the gas stream against the curved inner surface of the vessel wall in the lower section and collect in the oil sump for expulsion through the oil outlet port for re-use in the compressor. Oil trapped by the coalescing elements as the gas moves from the lower section to the upper section through the filter elements also returns from the upper section into the oil sump.

摘要翻译： 油分离器用于去除在制冷系统中循环的制冷剂中夹带的油，特别是使用螺杆式压缩机的系统。 油分离器通常包括其中具有室的容器和其上安装有油聚结元件的多孔板，将该室分成下主要主油分离器部分和上部第二油分离器部分。 混合物入口管延伸穿过罐的侧面进入下部，以允许加压的制冷剂和油的混合物。 在上部设有制冷剂气体排出口，用于排出分离油的制冷剂。 在下部设有出油口，用于排出收集在下部底部的油底壳中的油。 入口混合管限定了一个通道，该通道包括直的水平部分和弯曲和向下倾斜的部分，其终止于靠近容器壁的弯曲内表面的排出口。 当夹带在其中的制冷剂气体与其中的油的混合物流过通道时，油滴在离心力下沿着通道的外弯曲壁表面与制冷剂分离，由重力离开并且在气流的作用下抵靠弯曲的内表面 的容器壁收集在油底壳中，以通过出油口排出以在压缩机中重新使用。 当气体通过过滤元件从下部移动到上部时，由聚结元件捕获的油也从上部返回到油底壳中。

公开(公告)号：US4571951A

公开(公告)日：1986-02-25

申请号：US681633

申请日：1984-12-14

申请人： Paul G. Szymaszek

发明人： Paul G. Szymaszek

IPC分类号： F25B41/06 ,  F25B41/00

CPC分类号： F25B41/062 ,  F25B2600/2513

摘要： A refrigeration system comprises a compressor, a condenser, a receiver, an evaporator, and an adjustably controllable expansion valve connected in the refrigerant supply line from the receiver to the evaporator. An electronic control system adjustably controls the expansion valve so as to maintain the maximum amount of liquid refrigerant in the evaporator while preventing flow of liquid refrigerant to the compressor. The electronic control system measures both the actual refrigerant temperature and refrigerant vapor pressure at a common point near the evaporator outlet port, converts the measured vapor pressure to a saturation temperature, determines the differential between the two temperatures and adjusts the expansion valve in accordance therewith, i.e., closing or opening in response to differentials below or above a set point, respectively.

摘要翻译： 制冷系统包括压缩机，冷凝器，接收器，蒸发器和连接在从接收器到蒸发器的制冷剂供应管线中的可调节可控制的膨胀阀。 电子控制系统可调节地控制膨胀阀，以便在防止液体制冷剂流向压缩机的同时保持蒸发器中最大量的液体制冷剂。 电子控制系统测量在蒸发器出口附近的共同点处的实际制冷剂温度和制冷剂蒸汽压力，将测量的蒸汽压力转换为饱和温度，确定两个温度之间的差异并根据其调节膨胀阀， 即，分别响应于低于或高于设定值的差异来关闭或打开。

公开(公告)号：US5207568A

公开(公告)日：1993-05-04

申请号：US850504

申请日：1992-03-13

申请人： Paul G. Szymaszek

发明人： Paul G. Szymaszek

IPC分类号： F01C1/16 ,  F04C18/16 ,  F04C28/12 ,  F04C29/00

CPC分类号： F04C28/125 ,  F04C29/0021

摘要： A rotary compressor is provided that has a housing including a bore, bearings, a low pressure end having a low pressure inlet and a high pressure end having a high pressure outlet. A rotor is rotatably mounted by the bearings in the bore and has an end face subject to a variable axial thrust force; and a plurality of compression chambers having a low pressure, a high pressure and intermediate pressures. A piston is provided for exerting a counterbalancing force on the rotor in opposition to the axial thrust force at the high pressure end of the compressor. An intermediate pressure port is provided in communication with the intermediate pressure chamber. A conduit is connected between the piston and the intermediate pressure port which varies according to suction pressure to cause the piston to apply a variable counterbalance force on the rotor through the output range of the compressor. A method for operating a rotary screw compressor is disclosed comprising the steps of: establishing an intermediate pressure port; operating the compressor to produce a normal working output range and create varying levels of pressure within a series of intermediate pressures; and connecting the intermediate pressure port with the piston to cause the intermediate pressure to appear at the piston and exert a variable counterbalancing force on the rotor corresponding to the variable axial thrust force exerted on the rotor end face.

摘要翻译： 提供了一种旋转压缩机，其具有壳体，该壳体包括孔，轴承，具有低压入口的低压端和具有高压出口的高压端。 转子通过轴承可旋转地安装在孔中并具有经受可变轴向推力的端面; 以及具有低压，高压和中压的多个压缩室。 提供活塞，用于在转子的相对于压缩机的高压端处的轴向推力施加平衡力。 中间压力端口设置成与中间压力室连通。 导管连接在活塞和中间压力端口之间，根据吸入压力而变化，使得活塞通过压缩机的输出范围对转子施加可变的平衡力。 公开了一种操作旋转螺杆式压缩机的方法，包括以下步骤：建立中间压力端口; 操作压缩机以产生正常工作输出范围并在一系列中间压力内产生不同程度的压力; 并且将中间压力端口与活塞连接以使中间压力出现在活塞上，并且对应于施加在转子端面上的可变轴向推力施加可变的平衡力。

公开(公告)号：US4254637A

公开(公告)日：1981-03-10

申请号：US86587

申请日：1979-10-19

申请人： Paul J. Brauch ,  Paul G. Szymaszek

发明人： Paul J. Brauch ,  Paul G. Szymaszek

IPC分类号： F25B31/00 ,  F25B43/02

CPC分类号： F25B43/02 ,  F25B31/006

摘要： In a refrigeration system wherein compressed refrigerant flows from a compressor discharge chamber successively through an oil separator and a condenser to a high pressure receiver, a minor portion of the condensed refrigerant that enters the high pressure receiver is passed through a pump by which its pressure is raised to above that of compressed refrigerant at said discharge chamber. From the pump the refrigerant is passed through an oil cooler in indirect heat exchange with compressor lubricating oil and is then released into the discharge chamber where it desuperheats the compressed refrigerant, thereby also cooling the compressor itself and increasing the effectiveness of the oil separator. The rate of flow of such refrigerant through the oil cooler is controlled to maintain a desired temperature of refrigerant flowing from the discharge chamber to the oil separator.

摘要翻译： 在压缩制冷剂从压缩机排放室依次通过油分离器和冷凝器流到高压储罐的制冷系统中，进入高压储罐的冷凝制冷剂的一小部分通过泵，压力为 升高到高于所述排出室处的压缩制冷剂的压力。 从泵将制冷剂通过油冷却器，与压缩机润滑油进行间接热交换，然后释放到排放室中，在其中减压压缩的制冷剂，从而也可以冷却压缩机本身并提高油分离器的有效性。 控制这种制冷剂通过油冷却器的流动速率以保持制冷剂从排出室流到油分离器的期望温度。