Oil pumps are mainly classified according to their working principles and structures. The following are common classifications and characteristics:
1. Classification by structure
Gear pumps
Use the rotation of two meshing gears to transport liquids. It has a simple structure and is widely used. It is commonly used in oil transportation and hydraulic systems.
Example: KCB oil pump is suitable for lubricating oil transportation.
Plunger pumps
Pressure and transport liquids through the reciprocating motion of the plunger. It has high precision and high pressure. It is mostly used in diesel engine injection systems (such as injection pumps) and high-pressure hydraulic systems.
Vane pumps
Rely on the rotation of the blades in the rotor to transport liquids. It is suitable for scenarios with medium pressure and flow, such as hydraulic drive systems.
Screw pumps
Transport high-viscosity liquids (such as heavy oil and asphalt) through screw meshing. It has good sealing and stable flow. It is commonly used in the chemical and petroleum fields.
2. Classification by application scenarios
Injection pumps
The core components of diesel engines are divided into monomer pumps and synthetic pumps to ensure high-pressure and accurate injection of fuel.
Self-priming oil pump
No need to fill liquid when starting, vacuum self-priming is formed by high-speed rotation of the impeller, suitable for intermittent oil delivery scenarios.
Oil delivery pump
Specially used for long-distance oil delivery, such as 2CY oil delivery pump suitable for high-temperature oil transmission.
Hydraulic pump
Provides power for hydraulic systems, including vane pumps, gear pumps and other structures, widely used in engineering machinery.
3. Special types
Vacuum pump: used to generate negative pressure environment (such as oil extraction), commonly used in automobiles and industrial fields.
Electric pump: driven by a motor, suitable for a variety of liquid delivery needs, such as the electric series products of Xiang Oil Pump.
