Classification of hydraulic pump hydraulic motor

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Classification of hydraulic pumps

The hydraulic pump is an energy conversion element that converts the mechanical energy of the prime mover into hydraulic energy. In the hydraulic transmission, the hydraulic pump is used as a power element to provide hydraulic energy to the hydraulic system.

液压泵	┏━ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┫ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┃ ┗━	Gear Pumps	┏ ┃ ┃ ┫ ┃ ┃ ┗	According to the form of meshing: internal gear pump, external gear pump According to the side plate structure: fixed side plate (no side plate), floating side plate According to the number of stages: single-stage gear pump, multi-stage gear pump According to the form of tooth surface: straight gear pump, helical gear pump, circular arc gear pump, asymmetric gear pump.
		Vane Pumps	┏ ┃ ┃ ┫ ┃ ┃ ┗	According to the role: single-action According to the number of stages: single-stage vane pump, multi-stage vane pump According to the connection form: single pump and double pump
		Plunger Pumps	┏ ┃ ┃ ┫ ┃ ┃ ┗	Axial piston pumps: swash plate type, lobe plate type, swash shaft type Radial piston pumps: rotating cylinder type, fixed cylinder type In-line plunger pumps.
		Screw pumps	┏ ┃ ┃ ┫ ┃ ┃ ┗	According to the number of screws: single screw, multi-screw pumps According to the screw section tooth shape: cycloidal tooth shape, cycloidal-involute tooth shape, circular tooth shape pump According to the number of working levels: single-level and multi-level According to the high and low cavity isolation form: sealed and non-sealed
		Other	┏ ┃ ┫ ┃ ┗	Lobe rotor pumps Cycloidal pumps