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    • 59. 发明授权
    • Pump pressure limiting method
    • 泵压力限制方法
    • US06904762B2
    • 2005-06-14
    • US10685197
    • 2003-10-14
    • William SchwartzMukesh KumarGene Cox
    • William SchwartzMukesh KumarGene Cox
    • F04B49/20F04D15/00F25B49/00F25D17/02F25B1/00
    • F04D15/0066F04B49/20F04B2205/05F04B2205/06F25B49/00F25D17/02
    • A novel pump pressure limiting method for preventing coolant in a cooling system from reaching pressures that exceed predetermined system coolant pressure limits. The method includes reducing the system coolant pressure, as needed to prevent system over-pressurization, by reducing the operational speed of a coolant pump used to pump the coolant through the system. In one embodiment, the system coolant pressure is determined directly, by measurement of the pressure of the coolant in the system typically using pressure sensors. The operational speed of the coolant pump is then reduced until the system coolant pressure decreases to within the predetermined pressure limits. In another embodiment, the system pressure is determined indirectly, by obtaining pressure-indicating data such as coolant temperature. The coolant system pressure is then correlated with the coolant temperature or other data and then the operational speed of the coolant pump is reduced accordingly.
    • 一种用于防止冷却系统中的冷却剂达到超过预定系统冷却剂压力极限的压力的新型泵压力限制方法。 该方法包括通过降低用于泵送冷却剂通过系统的冷却剂泵的操作速度,根据需要降低系统冷却剂压力以防止系统过压。 在一个实施例中,通过使用压力传感器测量系统中的冷却剂的压力来直接确定系统冷却剂压力。 然后冷却剂泵的操作速度降低,直到系统冷却剂压力降低到预定压力极限内。 在另一个实施例中,通过获得诸如冷却剂温度的压力指示数据来间接确定系统压力。 然后将冷却剂系统压力与冷却剂温度或其他数据相关联,然后相应地减小冷却剂泵的操作速度。