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    • 5. 发明公开
    • Control valve for variable displacement compressor
    • 可变排量压缩机的控制阀
    • EP1637736A2
    • 2006-03-22
    • EP05019466.1
    • 2005-09-07
    • TGK CO., Ltd.
    • Hirota, Hisatoshi
    • F04B27/18F04B49/22
    • F04B27/1804F04B49/225F04B2027/1827F04B2027/1854F04B2027/1872
    • A compact control valve for a variable displacement compressor comprises a first valve 11 having a check valve function opening and closing by the differential pressure (Pdh-Pdl), a second valve 12 that opens and closes by sensing the differential pressure (Pdh-Pc), and a solenoid 14 for setting the value of the differential pressure across the first valve 11. The motion of a valve element 20 of the first valve 11 is transmitted via a shaft (29) to a valve element 27 of the second valve 12. The second valve 12 controls the pressure Pc in the crankcase such that the differential pressure across the first valve 11 becomes equal to a fixed value set by the solenoid 14, whereby the flow rate discharged from a compressor outlet port can be controlled to be constant.
    • 用于可变排量压缩机的紧凑型控制阀包括具有通过压差(Pdh-Pdl)打开和关闭的止回阀功能的第一阀11,通过感测压差(Pdh-Pc)来打开和关闭的第二阀12, 以及用于设定第一阀11上的压差值的螺线管14.第一阀11的阀元件20的运动经由轴(29)传递到第二阀12的阀元件27。 第二阀12对曲轴箱内的压力Pc进行控制,使得第一阀11的前后压差成为螺线管14设定的固定值,从而能够将从压缩机出口排出的流量控制为恒定。
    • 8. 发明公开
    • Capacity control valve for variable displacement compressor
    • Regelventilfüreinen Verdichter变种器Verdrängung
    • EP1403516A2
    • 2004-03-31
    • EP03021486.0
    • 2003-09-23
    • TGK Co., Ltd.
    • Hirota, Hisatoshi
    • F04B27/18
    • F04B27/1804F04B49/225F04B2027/1813F04B2027/1827F04B2027/185F04B2027/1854F04B2027/1872
    • A compact, low-cost capacity control valve 30 for a variable displacement compressor 1 is an integrated structure of first and at least second control valves 30A, 30B. The first control valve 30A, placed on a discharge passageway, functions as a variable orifice whose cross-sectional area can be set as desired by varying the power of a solenoid unit 30C. Part of refrigerant discharged at pressure PdH is supplied to the crank chamber 15, in which the pressure is Pc. The second control valve 30B controls the flow to the crank chamber 15 such that the differential pressure between upstream and downstream pressures PdH, PdL will be regulated at a specified level. This allows to reduce the size of the solenoid unit 30C because the first control valve 30A does not need a large force to yield a small differential pressure as required for the control operation.
    • 第一控制阀(30A),第二控制阀(30B)和螺线管单元(30C)一体形成。 第一电磁阀设定通向可变排量压缩机的吸入室或排出室的制冷剂通路的特定横截面积。 螺线管单元根据给定的外部条件的变化来启动第一控制阀。 第二控制阀检测跨越第一控制阀产生的差压,并且控制供给到可变排量压缩机的曲柄室或从曲轴室流出的制冷剂的流量,使压差保持在指定水平。
    • 9. 发明公开
    • Proportional valve
    • Proportionalventil
    • EP1396691A1
    • 2004-03-10
    • EP03019084.7
    • 2003-08-22
    • TGK Co., Ltd.
    • Hirota, Hisatoshi
    • F25B41/06G05D16/20
    • F25B41/062F25B2341/065F25B2600/2505G05D16/2013Y02B30/72
    • A valve element 11 of a proportional valve is integral with a piston 13 having a cross-sectional area equal to that of a valve hole constituting a valve seat 10. A diaphragm 14 having an outer peripheral portion secured to a body 1 contacts a pressure-receiving end face of the piston 13. The diaphragm 14 is mounted in a displaced state such that when the valve element 11 is seated, the pressure receiving area of the diaphragm 14 is at a maximum and equal to that of the valve element 11. A variation of the pressure receiving area of the valve element 11 when the valve element moves away from the valve seat 10 is canceled out a corresponding variation of the pressure receiving area of the diaphragm 14. This prevents the valve to open or close by itself due to a difference between the pressure receiving areas. A sliding portion of the piston 13 is sealed by the diaphragm 14 preventing internal leakage.
    • 比例阀的阀元件11的横截面积等于构成阀座10的阀孔的横截面积的活塞13是一体的。具有固定到主体1的外周部分的隔膜14接触压力传感器, 活塞13的接收端面。隔膜14以移动状态安装,使得当阀元件11就位时,隔膜14的受压面积最大并且等于阀元件11的压力接收面积。 当阀元件离开阀座10时,阀元件11的压力接收面积的变化被抵消了隔膜14的压力接收面积的相应变化。这防止阀由于自身而被打开或关闭 压力接收区域之间的差异。 活塞13的滑动部分由膜片14密封,防止内部泄漏。