会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Air conditioning apparatus for an automobile
    • 汽车空调设备
    • US5273105A
    • 1993-12-28
    • US856985
    • 1992-03-24
    • Akhito HigashiharaHiroshi NonoyamaKoichi ItoMichihiko Kamiya
    • Akhito HigashiharaHiroshi NonoyamaKoichi ItoMichihiko Kamiya
    • B60H1/00B60H1/08F25B29/00
    • B60H1/00885
    • A heater core 21 is connected to an engine cooling water line via an inlet passageway 43 and a return passageway 45. A first valve 25a is provided for controlling the amount of high temperature water introduced to the heater core 21, and a second valve 25b is provided for a re-circulation of low temperature water that has passed through the heater core, via a re-circulation passageway 46. The amount of high temperature engine cooling water supplied to the heater core 21 and the amount of low temperature cooling water from the heater core 21 passed through the return passageway 46 are controlled by an on-off manner control of the first and second valves 25a and 25b, respectively, and thus a ratio of a mixture of the high temperature water and the low temperature water, which corresponds to a time average value of the temperature of the cooling water introduced into the heater core, is controlled in accordance with a duty ratio of the on-off signals operating the valves 25 a and 25b. This on-off control of the valves 25a and 25b prevents a depositing of impurities at small valve gaps otherwise obtained between the valves and the respective valve seats. Furthermore, under particular conditions, the frequency of the on-off cycle can be reduced, to thereby prolong the service life of the device. A by-pass passageway 47 is provided for preventing water hammer.
    • 加热器芯21通过入口通道43和返回通道45连接到发动机冷却水管线。第一阀25a用于控制引入加热器芯21的高温水的量,第二阀25b是 提供了通过再循环通道46通过加热器芯的低温水的再循环。供给到加热器芯21的高温发动机冷却水的量和来自加热器芯21的低温冷却水的量 通过返回通道46的加热器芯21分别由第一和第二阀25a和25b的开关方式控制,从而分别对应于高温水和低温水的混合比 根据操作阀门25a和25b的通断信号的占空比来控制导入加热器芯体的冷却水的温度的时间平均值。 阀25a和25b的这种开关控制防止在阀和相应的阀座之间另外获得的小的阀间隙沉积杂质。 此外,在特定条件下,可以减少开 - 关循环的频率,从而延长设备的使用寿命。 设有用于防止水锤的旁路通路47。