22/03/25
The development direction of hot oil pump is small pulsation
In order to improve the performance of hot oil pump and reduce the manufacturing cost, it is required to meet the design requirements of smaller volume, faster response, smaller pulsation and lower noise of hot oil pump.
Trends in research
In order to improve the performance of hot oil pump and reduce the manufacturing cost, it is required to meet the design requirements of smaller volume, faster response, smaller pulsation and lower noise of hot oil pump.
In addition to consolidating its existing advantages on the basis of the main development direction of hot oil pump.
Small flow pulsation
The pulsation of the flow may cause the hydraulic system to vibrate, produce noise and work unsteadily.
The pulsation of flow always coexists with the pulsation of pressure. The periodical change of the radial force of the gear will also affect the life of the shaft and the bearing.
High pressure
Many hydraulic systems have high pressure requirements, which is the biggest advantage of hot pumps compared with other pumps.
Traditional hot oil pump is affected by structure, material, processing technology and other factors to improve the pressure of hot oil pump is very difficult, now the most important way to achieve high pressure is to innovate in the structure.
Large displacement
Some hydraulic systems require large displacement, but it is difficult to improve the displacement of hot oil pump due to the influence of the structure. Large displacement can be achieved by increasing the tooth thickness, reducing the number of teeth and speeding up the speed.
Adjustable displacement hot oil pump
Many hydraulic systems require adjustable displacement, which is conducive to the accurate control of the hydraulic system.
There are many researches on adjustable displacement hot oil pump, but few of them are transformed into products.
Adjustable displacement hot oil pump is one of the most important research directions in the future.
Low noise
In modern industry, people put forward higher requirements for the working environment, and reducing the noise of hot oil pump has also become a very important research direction, mainly through reducing the mechanical noise and the noise of liquid oil.
Mechanical noise has a great relationship with gear meshing and machining accuracy.
The noise of liquid oil is mainly to reduce the trapped oil of hot oil pump through reasonable structural design.
Relatively speaking, internal meshing hot oil pump has greater advantages in stability and noise control.
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