Hydraulic circuit for a plurality of pumps
专利汇可以提供Hydraulic circuit for a plurality of pumps专利检索，专利查询，专利分析的服务。并且PURPOSE: To achieve economical engine fuel consumption, prolong the life of a hydrulic pump, improve volume efficiencys of the hydraulic pump, and improve the operation performance of the actuators such as construction machinery etc, by using an input controlling apparatus.
CONSTITUTION: In the hydraulic circuit using input controlling apparatuses 4, 9, and 14, the low pressure side out of the hydraulic pumps 1 and 2 is selected by a low pressure selecting valve 26, and introcduced into the operation part of a selector valve 25, and switching operation of the selector valve 25 is performed according to the magnitude of the pressure, and the limit input of the input controlling apparatus of a hydraulic pump 3 can be switched in two stage. At the same time, the pressure of this hydraulic pump is introduced into the operation part of a selector valve 24, and switching of the selector valve 24 is performed according to the magnitude of the pressure, and thus the limit input of the input controlling apparatus 9 of the hydraulic pump 2 can be switched in two stages. Thus, each flow rate of the hydraulic pumps 1, 2, and 3 can be controlled independently, and the operation performance of the actuators such as construction machinery etc. can be improved.
COPYRIGHT: (C)1982,JPO&Japio，下面是Hydraulic circuit for a plurality of pumps专利的具体信息内容。
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