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In hydraulic systems, common hydraulic oil pumps mainly include vane pumps, HYDRAULIC GEAR PUMP, and plunger pumps. Internal gear pumps are available in involute and cycloidal tooth profiles. Its working principle and main features are the same as the external meshing HYDRAULIC GEAR PUMP, except tha

HYDRAULIC GEAR PUMP is a rotary pump relying on the change and movements of the working volume formed between the pump cylinder and meshing gears to convey or pressure the liquid. The two closed spaces consist of two gears, a pump body, and a front and rear cover. When the gears rotate, the volume o