Rexroth plunger pump Tianjin spot distribution

NegotiableUpdate on 01/22

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Nature of the Manufacturer: Producers

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Overview

The Rexroth plunger pump is a type of reciprocating pump, belonging to the volumetric pump. Its plunger is driven by the eccentric rotation of the pump shaft, reciprocating motion, and its suction and discharge valves are both one-way valves. When the plunger is pulled out, the pressure inside the working chamber decreases and the outlet valve closes. When the pressure is lower than the inlet pressure, the inlet valve opens and liquid enters; When the plunger is pushed inward, the working chamber pressure increases, the inlet valve closes, and when it is higher than the outlet pressure, the outlet valve opens and the liquid is discharged.

Product Details

Rexroth plunger pump Tianjin spot distribution

The total stroke L of the reciprocating motion of the plunger pump is constant and determined by the lift of the cam. The fuel supply amount per cycle of the plunger depends on the fuel supply stroke, which is variable and not controlled by the camshaft. The start time of fuel supply does not change with the variation of fuel supply stroke. Rotating the plunger can change the end time of fuel supply, thereby altering the fuel supply amount. When the plunger pump is working, the cam on the camshaft of the fuel injection pump and the plunger spring force the plunger to reciprocate up and down, thereby completing the pumping task. The pumping process can be divided into the following two stages.

Oil inlet process
When the convex part of the cam rotates, under the action of the spring force, the plunger moves downward, and the upper space of the plunger (called the pump oil chamber) generates a vacuum degree. When the upper end face of the plunger opens the oil inlet hole on the plunger sleeve, diesel filled in the oil passage of the upper body of the oil pump enters the pump oil chamber through the oil hole, and the plunger moves to the bottom dead center, ending the oil inlet.

Return oil process
The plunger supplies oil upwards. When the inclined groove (stop supply edge) on the plunger is connected to the return hole on the sleeve, the low-pressure oil circuit in the pump chamber communicates with the middle hole, radial hole, and inclined groove of the plunger head. The oil pressure suddenly drops, and the oil outlet valve quickly closes under the action of the spring force, stopping the oil supply. Afterwards, the plunger will continue to move upwards. When the protruding part of the cam rotates past, under the action of the spring, the plunger will move downwards again. At this point, the next cycle begins.

Characteristics of plunger pump:
1. Static pressure closed-loop transmission of variable axial piston pump with inclined plate design
2. The flow rate is proportional to the driving speed and displacement, and is infinitely variable
3. The output flow rate and the rotation angle of the inclined plate increase from 0 to a large value
4. When the flow direction changes steadily, the tilting plate moves through the neutral position
5. Widely adaptable control equipment with different control and regulation functions available
6. The pump is equipped with two pressure reducing valves and a high-pressure port to protect the static hydraulic transmission from overload (pump and motor)
7. High pressure relief valve is also used as a pressure boosting valve
8. Integrated booster pump as feed and control oil pump
9. The high boost pressure is achieved by limiting a built-in boost relief valve
10. Integral pressure cut-off as standard

A10VSO100DRF/32R-PPB22U00 A10VSO100DRF/32R-VPB22U00

A10VSO100DRF/32R-PPB32U00 A10VSO100DRF/32R-VPB32U00

A10VSO100DRF/32R-PPB22U99 A10VSO100DRF/32R-VPB22U99

A10VSO100DRF/32R-PPB32U99 A10VSO100DRF/32R-VPB32U99

A10VSO100DRS/32R-PPB22U00 A10VSO100DRS/32R-VPB22U00

Rexroth plunger pump Tianjin spot distribution