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1.发明授权
公开(公告)号：US5979780A
公开(公告)日：1999-11-09
申请号：US943400
申请日：1997-10-03
CPC分类号： F25B41/062 , F25B41/04 , F25B2341/0683 , F25B2500/05
摘要： A mechanical thermostatic refrigerant expansion valve assembly with an electrically operated shut-off in the inlet to the valve body. Preferably, the electrical operator is a solenoid attached to the valve body on the end opposite the mechanical thermal responsive valve actuator so as to minimize the changes in the manufacturing of an existing valve body. The solenoid armature moves a secondary valving member spring biased to shut off flow in the valve inlet.
摘要翻译： 机械恒温制冷剂膨胀阀组件，其在阀体的入口中具有电动切断。 优选地，电操作器是在与机械热响应阀致动器相对的端部附接到阀体的螺线管，以便最小化现有阀体的制造变化。 螺线管衔铁移动偏置阀门的第二阀构件以关闭阀入口中的流动。
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公开(公告)号：US5605318A
公开(公告)日：1997-02-25
申请号：US227425
申请日：1994-04-14
CPC分类号： F16K31/0668 , F25B41/062 , H01F7/1607 , F25B2341/065 , F25B2500/05 , Y02B30/72
摘要： A solenoid operated proportional control expansion valve having a tubular armature guide of non-magnetic material disposed externally of the valve blocks with a magnetic pole piece welded on the end of the tubular guide. A plastic encapsulated coil is received over the guide. The armature guide has a flange therein which in one embodiment is welded to a second flanged tube threaded into the valve blocks. In other embodiments the guide flange is directly mechanically fastened to the valve block. A cup-shaped pole frame is received over the coil for completing the magnetic flux loop about the coil.
摘要翻译： 一种电磁操作的比例控制膨胀阀，其具有设置在阀块外部的非磁性材料的管状电枢引导件，焊接在管状引导件的端部上的磁极片。 塑料封装的线圈被接收在引导件上。 电枢引导件在其中具有凸缘，在一个实施例中，凸缘被焊接到螺纹连接到阀块中的第二凸缘管中。 在其他实施例中，引导凸缘直接机械地紧固到阀块。 杯状的极框架被接收在线圈上以完成围绕线圈的磁通量环路。
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公开(公告)号：US4896860A
公开(公告)日：1990-01-30
申请号：US348368
申请日：1989-05-08
CPC分类号： F16K31/0655 , F16K3/24 , F25B41/062 , F25B2341/0652 , F25B2500/01 , Y02B30/72
摘要： A solenoid operated refrigerant expansion valve, particularly for automotive air conditioning systems, having a center-post guided tubular armature which slides on the post to provide valving of cross-ports communicating with a hollow region in the post which communicates with the valve outlet. The tubular armature has a pair of sleeves disposed on the interior at opposite ends thereof which provide the sole sliding contact surfaces on the post for minimizing friction therebetween to reduce the tendency of the armature to seize on the post.
摘要翻译： 一种电磁操作制冷剂膨胀阀，特别是用于汽车空调系统的电磁操作制冷剂膨胀阀，其具有中心柱导向管状电枢，其在柱上滑动，以提供与柱塞中的与阀出口连通的中空区域连通的交叉口阀。 管状电枢具有一对套筒，其在其相对两端设置在内部，其在支柱上提供鞋底滑动接触表面，以使其之间的摩擦最小化，以减少电枢在柱上卡住的倾向。
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4.发明授权
公开(公告)号：US5216892A
公开(公告)日：1993-06-08
申请号：US838513
申请日：1992-02-19
申请人： George W. Jarosch , Peter J. Malone
发明人： George W. Jarosch , Peter J. Malone
CPC分类号： B60H1/321 , F25B41/062 , B60H2001/325 , B60H2001/327 , F25B2341/0652 , Y02B30/72
摘要： An automotive air conditioning system utilizing an electrically operated refrigerant expansion valve controlled by a micro-computer. The compressor clutch cut-off is controlled by a suction pressure sensor at high thermal load. At partial flow conditions of the expansion valve, representative of moderate evaporator thermal loading, the micro-computer controls compressor clutch "ON" time from an accumulated count incremented by a predetermined amount according to suction pressure change. When the accumulated count over successive signal sampling intervals reaches a predetermined maximum the clutch is cut-out based on the count which is representative of a predetermined time interval.
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公开(公告)号：US4794762A
公开(公告)日：1989-01-03
申请号：US7861
申请日：1987-01-27
CPC分类号： B60H1/3211 , F25B49/027 , B60H2001/3264 , B60H2001/327 , B60H2001/3277 , B60H2001/3297 , F25B2600/111
摘要： A refrigeration control system for cooling a vehicle passenger compartment having a compressor/pump for circulating refrigerant between an evaporator located for cooling the compartment air and a condenser located for ambient heat exchange. An expansion valve controls refrigerant flow from the condenser to the evaporator; and, a first thermistor senses directly the temperature of the refrigerant on the high pressure inlet side of the valve and a second thermistor senses refrigerant flow temperature on the low pressure discharge side of the valve. A microprocessor compares the first thermistor output with predetermined first upper and lower values and effects opening and closing of the compressor clutch switch for high pressure cut-off; and, a fan switch is opened and closed for energization and de-energization of a condenser cooling fan. The output of the second thermistor is compared with a second set of upper and lower limit values for responding to normal service duty cycling of the clutch; and, the microprocessor is effective upon sensing a predetermined temperature after an elapsed time interval to open the clutch switch in the event of low or insufficient refrigerant charge.
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公开(公告)号：US5354103A
公开(公告)日：1994-10-11
申请号：US188508
申请日：1994-01-28
CPC分类号： F16L41/086 , B60H1/00571 , F16L39/00 , F25B2500/05 , F25B41/003 , F25B41/062 , Y10S285/921
摘要： A technique for quick insert connecting tubular fluid pressure conduits into spaced ports having internal seal rings in a common side of a valve or block. A plastic spring lock member with apertures coinciding with the ports is disposed over the ports. The apertures are chamfered on a common side and slotted for permitting resilient expansion. The spring lock member is retained by a cover bolted to the block with clearance apertures over the ports. Upon insertion of a conduit with an annular convolution adjacent the end, the convolution cams against the chamfer expanding the slotted aperture permitting the convolution to snap through and the conduit to be retained in the port with the periphery of the conduit end contacting the internal seal ring.
摘要翻译： 一种用于将管状流体压力管道快速插入连接到间隔开的端口中的技术，其具有在阀或块的共同侧中的内部密封环。 具有与端口重合的孔的塑料弹簧锁定构件设置在端口上。 孔在共同的一侧倒角并开槽以允许弹性膨胀。 弹簧锁定构件由螺栓固定在具有在端口上的间隙的块上的盖子上。 当插入具有邻近端部的环形卷积的导管时，卷曲凸轮抵靠倒角扩展开槽孔，允许卷曲卡通并且导管保持在端口中，导管端部的周边接触内部密封环 。
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公开(公告)号：US5269459A
公开(公告)日：1993-12-14
申请号：US900621
申请日：1992-06-18
CPC分类号： F25B41/062 , F25B2341/0683 , F25B2500/15
摘要： A refrigerant expansion valve has a pressure-responsive diaphragm forming a wall of a fluid filled chamber. The diaphragm is connected to one end of an actuator rod incorporating a hollow with a closed end opposite and operative to move a valve member for controlling flow between an inlet and outlet. The actuator member has the hollow communicating with the fluid filled chamber and its external surface exposed to return refrigerant flow. Fluid communications between the hollow of the actuator member and the fluid filled chamber is restricted by an orifice in a plug in the open end of the hollow to dampen the effects of sudden temperature changes of the return flow over the hollow. Preferably, the actuator member, plug, and diaphragm are commonly clamped, sealed, and welded together.
摘要翻译： 制冷剂膨胀阀具有形成流体填充室的壁的压力响应膜片。 隔膜连接到一个致动器杆的一端，该致动器杆具有一个中空孔，该空心具有一个相对的封闭端，并且可操作地移动一个阀构件，以控制入口和出口之间的流动。 致动器构件具有与流体填充室连通的中空部，其外表面暴露于返回制冷剂流动。 致动器构件的中空部分和流体填充腔之间的流体连通通过中空开口端中的塞子中的孔口来限制，以抑制回流在空心上的突然的温度变化的影响。 优选地，致动器构件，插头和隔膜通常被夹紧，密封并焊接在一起。
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公开(公告)号：US4944160A
公开(公告)日：1990-07-31
申请号：US473066
申请日：1990-01-31
CPC分类号： B60H1/3211 , F25B41/062 , F25B49/022 , F25B49/027 , B60H2001/3264 , B60H2001/3277 , F25B2341/0683 , F25B2600/111 , F25B2700/21174
摘要： A refrigeration system employing a mechanical thermal expansion valve with a self-heated thermistor sensing saturation temperature at a high pressure inlet and a second thermistor sensing saturation temperature at the evaporator outlet. A microprocessor based controller compares the sensed temperature with stored limits and provides output signals to a relay for cycling the condenser fan responsive to high side pressure and the compressor clutch responsive to the low pressure side temperature. For low pressure drop evaporators, the second thermistor may be disposed at the evaporator inlet.
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9.发明授权
公开(公告)号：US4995240A
公开(公告)日：1991-02-26
申请号：US362138
申请日：1989-06-06
IPC分类号： F25B41/06
CPC分类号： F25B41/062 , F25B2341/0652 , Y02B30/72 , Y10T29/49405
摘要： A system for controlling refrigerant flow in an air conditioning system employing an electrically operated valve for controlling flow of refrigerant from the condenser to the evaporator. Separate thermistors sense the temperature of the refrigerant entering and discharging from the evaporator. A comparison of the sensed temperatures is used to modify the control signal to the valve for maintaining proper refrigerant flow to the evaporator. A control module is directly attached on the valve body to enhance heat conduction.
摘要翻译： 一种用于控制空调系统中的制冷剂流动的系统，其使用电动阀来控制制冷剂从冷凝器到蒸发器的流动。 分离的热敏电阻检测从蒸发器进入和排出的制冷剂的温度。 使用感测温度的比较来修改阀的控制信号，以保持适当的制冷剂流向蒸发器。 控制模块直接连接在阀体上，以增强热传导。
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公开(公告)号：US4848100A
公开(公告)日：1989-07-18
申请号：US210159
申请日：1988-05-02
IPC分类号： F25B41/06
CPC分类号： F25B41/062 , F25B2341/0652 , Y02B30/72
摘要： A system for controlling refrigerant flow in an air conditioning system employing an electrically operated valve for controlling flow of refrigerant from the condenser to the evaporator. Separate thermistors sense the temperature of the refrigerant entering and discharging from the evaporator. A comparison of the sensed temperatures is used to modify the control signal to the valve for maintaining proper refrigerant flow to the evaporator.
摘要翻译： 一种用于控制空调系统中的制冷剂流动的系统，其使用电动阀来控制制冷剂从冷凝器到蒸发器的流动。 分离的热敏电阻检测从蒸发器进入和排出的制冷剂的温度。 使用感测温度的比较来修改阀的控制信号，以保持适当的制冷剂流向蒸发器。
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