ATOS blade pump Mianyang*

ATOS vane pumpMianyang*
ATOS piston pump, ATOS gear pump, ATOS axial piston pump, ATOS vane pump
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The working principle of ATOS vane pump is similar to that of single acting vane pump, except that the stator surface is composed of eight parts: two long radius arcs, two short radius arcs, and four transition curves, and the stator and rotor are concentric. When the rotor rotates clockwise in the diagram, the volume of the sealed working chamber gradually increases at the upper left and lower right corners, which are the oil suction area, and gradually decreases at the lower left and upper right corners, which are the oil pressure area; There is a sealing area between the oil absorption area and the oil pressure area to separate them. This type of pump is called a double acting vane pump because each sealed working chamber completes two oil suction and pressure actions for each rotation of the rotor. The two suction zones and two pressure zones of the pump are radially symmetrical, and the hydraulic pressure acting on the rotor is radially balanced, so it is also called a balanced vane pump.
The instantaneous flow rate of a double acting blade pump is pulsating, and the pulsation rate is small when the number of blades is a multiple of 4. For this reason, the number of blades in a double acting vane pump is generally set to 12 or 16.
Management points of ATOS vane pump:
In addition to preventing dry running and overload, preventing air intake and excessive vacuum intake, attention should also be paid to: vane pumps
vane pump
1. If the pump direction changes, its suction and discharge directions will also change. The vane pump has a specified direction and is not allowed to reverse. Because the rotor blade slots are inclined, the blades are chamfered, and the bottom of the blades is connected to the oil discharge chamber, the throttle slots and suction and discharge ports on the oil distribution plate are designed according to the predetermined direction. Reversible vane pumps must be specifically designed.
2. The oil distribution plate and stator of the vane pump should be correctly positioned with locating pins. The blades, rotor, and oil distribution plate should not be installed upside down. The suction area on the inner surface of the stator is prone to wear, and if necessary, it can be flipped and installed to turn the original suction area into a discharge area for continued use.
3. When disassembling, pay attention to the cleanliness of the working surface, and the oil should be filtered well during operation.
4. If the gap between the blades in the blade groove is too large, it will increase leakage, while if it is too small, the blades cannot expand and contract freely, which can lead to abnormal operation.
The axial clearance of the vane pump has a significant impact on η v.
1) Small pump -0.015~0.03mm
2) Medium pump -0.02~0.045mm
The temperature and viscosity of the oil should generally not exceed 55 ℃, and the viscosity requirement is between 17-37mm2/s. If the viscosity is too high, it will be difficult to absorb oil; If the viscosity is too low, there will be severe leakage.
Model table of ATOS vane pump:
PFE-31022/1DU
PFE-31022/1DW
PFE-31028/1DT
PFE-31028/1DU
PFE-31028/1DV
PFE-31036/1DT
PFE-31036/1DU 20
PFE-31036/1DV 20
PFE-31036/1DW
PFE-31044/1DT 20
PFE-31044/1DU 20
PFE-31044/1DV 20
PFE-32028/3DT 20
PFE-32028/3DV 20
PFE-32036/3DT
PFE-41037/1DU 20
PFE-41045/1DT
PFE-41045/1DU 20
PFE-41045/1DW 20
PFE-41056/1DT
PFE-41056/1DU 20
PFE-41056/1DV 20
PFE-41056/1DW 20
PFE-41070/1DT
PFE-41070/1DV 20
PFE-41070/2DT 20
PFE-41070/2DV 20
PFE-41085/1DT 20
PFE-41085/1DW 20
PFE-42045/3DW 20
PFE-42056/3DU 20
PFE-42070/3DT 20
PFE-42070/3DU
PFE-42070/3DW 20
PFE-42070/7DV
PFE-51090/1DT 23
PFE-51090/1DU
PFE-51110/1DT 23
PFE-51110/1DU 23
PFE-51110/3DT 23
PFE-51129/1DT
PFE-51150/1DT
PFE-51150/3DV
PFE-52090/3DT 31
PFE-52110/3DT 31
PFED-43029/016/1DWO 20
PFED-43029/016/1SWO
PFED-43029/028/1DVO 20
PFED-43037/016/1DTA
PFED-43037/016/3SUO 20
PFED-43037/022/1DVO 20
PFED-43045/028/1DTO 20
PFED-43045/044/1DTO
PFED-43045/044/1DVO 20
PFED-43056/016/1DTO
PFED-43070/016/1DUO
PFED-43070/044/1DUO 20
PFED-43070/044/1DVO
PFED-54090/070/1DUO 21
PFED-54090/070/1DVO 21
PFED-54090/070/3DUF 21
PFED-54110/029/1DTO 21
PFED-54110/029/1DUO
PFED-54110/056/1DUO 21
PFED-54110/056/3DWB 21
PFED-54129/029/1DWG 21
PFED-54150/070/3DVO
PFED-54150/085/1SVO 21
PFED-54150/085/3DWO 21
PFEX2-31036/31022/1DT
PFEX2-42045/31022/3DT 21
PFEX2-51150/51129/3DV 23
PFEX2-51150/51150/3DV 23
PFEX2-51150/51150/3DW 23
ATOS vane pumpMianyang*

ATOS vane pump is a pump in which the blades in the rotor slot are in contact with the pump casing (stator ring), and the sucked liquid is pressed from the inlet side to the outlet side.
The ATOS vane pump consists of rotor 1, stator 2, blades 3, oil distribution plate, and end cap. The inner surface of the stator is a cylindrical hole. There is eccentricity between the rotor and stator. The blades can slide flexibly in the slots of the rotor. Under the centrifugal force during rotor rotation and the pressure oil flowing into the root of the blades, the top of the blades is tightly attached to the inner surface of the stator, forming sealed working chambers between two adjacent blades, oil distribution plate, stator, and rotor. When the rotor rotates counterclockwise, the blades on the right side of the figure extend outward, and the volume of the sealed working chamber gradually increases, creating a vacuum. Therefore, oil is sucked in through the suction port 6 and the window on the oil distribution plate 5. And on the left side of the picture. The blades retract inward, and the volume of the sealing chamber gradually decreases. The oil in the sealing chamber is squeezed out through another window of the oil distribution plate and the pressure port 1 and output into the system. This type of pump is called a single acting pump because it absorbs oil and pressurizes oil once during each rotation of the rotor. The rotor is subjected to radial hydraulic unbalance force, so it is also known as an unbalanced pump, and its bearing load is relatively high. Changing the eccentricity between the stator and rotor can change the displacement of the pump, so these pumps are all variable displacement pumps.
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