4649265 PUMP GEAR For HITACHI ZX170W-3 4HK1

The main function of gear pump is to transport all kinds of lubricating liquids, and the function of gear pump is to move liquids from a low-pressure area to a high-pressure area. It makes the liquid be captured by the rotation of two or more gears and pushed into the outlet of the pump from an inlet. Inside the gear pump, the liquid is compressed and discharged through the outlet. Gear pumps can pump not only liquids, but also high-viscosity liquids and semi-solid substances. And has the advantages of simple structure, small volume, light weight, low price and the like. Gear pump is often used in hydraulic system, which relies on the change of working volume between pump cylinder and meshing gear to transport liquid or boost pressure. Gear pump can also be used to transport lubricating oil to ensure the normal operation of mechanical equipment

Gear pump is a kind of rotary pump that relies on the change and movement of working volume formed between pump cylinder and meshing gear to transport liquid or pressurize it. It consists of two gears, a pump body and a front cover and a back cover to form two closed spaces. When the gear rotates, the volume of the space on the gear disengagement side changes from small to large, forming a vacuum to suck the liquid; The volume of the space on the meshing side of the gear changes from large to small, and the liquid is squeezed into the pipeline. The working principle of gear pump is to change the working volume through the rotation of two gears, so as to realize the suction and discharge of liquid. Specifically, when the driving gear drives the driven gear to rotate, a vacuum is formed at the disengaged side of the gear to suck in liquid; When the gears are engaged, the liquid is squeezed out and discharged from the pump.

Gear pump is a kind of positive displacement pump which uses gears to suck and discharge liquid, and its function is to transport liquid from low pressure area to high pressure area. Gear pumps are often used in hydraulic transmission systems, automobile engine oil circuits and other fields. Gear pumps can transport various types of fluids, such as water, oil, hydraulic oil and fuel. Increase pressure: gear pump can transport fluid from low pressure area to high pressure area, and is often used to increase pressure in hydraulic transmission system and other fields. Maintain a stable flow: Gear pump can ensure a stable flow of fluid and its flow performance is stable and reliable. Improve efficiency: The special design of gear pump can improve its system efficiency. Gear pump is composed of gear, oil cylinder, oil inlet and oil outlet. Gear pumps are generally divided into external gear pumps and internal gear pumps. The external gear pump is composed of a pair of gears rotating. The inlet and outlet valves are installed in pairs by the pump body and the end cover, and the end cover is fastened with screws. The internal gear pump is composed of external teeth and internal teeth, which has the characteristics of small volume and stable pressure.