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总功率变量系统的主要优点是能按系统中各个回路工作压力之和进行调节。因此,当各回路中的外负载发生变化时,各个回路的功率不同,但不论每个回路中所需的功率如何变化,其功率之和总等于发动机的有效功率,提高了发动机的功率利用率。该系统在工程机械中得到了广泛地应用。而该系统的核心部分是恒功率变量泵,其性能直接影响系统的性能。
The main advantage of the total power variable system is that it can be adjusted by the sum of the working pressures of the various circuits in the system. Therefore, when the external load in each circuit changes, the power of each circuit is different, but no matter how the power required in each circuit changes, the sum of its power is always equal to the effective power of the engine, which improves the power utilization of the engine . The system has been widely used in construction machinery. The core part of the system is constant power variable pump, the performance of a direct impact on system performance.