LOAD-CONTROLLED PUMPING SYSTEM, HYDRAULIC CONTROL SYSTEM AND TECHNICAL EQUIPMENT Russian patent published in 2023 - IPC F15B11/04 E02F9/22 

FIELD: pumps.

SUBSTANCE: present invention provides a load-controlled pumping system, a hydraulic control system, and technical equipment. Said pumping system comprises a variable flow pump and a constant flow pump, which are configured to be driven by the same drive mechanism, a displacement control mechanism designed to control the displacement of the variable flow pump, an oil control line, and a valve configured with the possibility of supplying the partial output pressure of the pump with a constant flow rate through the control oil pipeline to the adjustment hole of the displacement control mechanism to ensure an increase in the maximum working volume of the pump with a variable flow rate with an increase in the driving mechanism rotation speed. Due to the design of said valve, it is provided to signal a change in the partial pressure of the constant flow pump to the adjustment hole of the displacement control mechanism, so that the said mechanism can increase the maximum displacement of the variable flow pump when the driving mechanism driving speed is increased.

EFFECT: flexible control of power along with speed through its own hydraulically controlled oil line, without the additional use of an electrical controller or wiring harness, and has a wide practical application.

10 cl, 1 dwg