Gear pump and mobile unit for adjusting conveying capacity
A mobile unit, gear pump technology, applied in the direction of pump, pump control, machine/engine, etc., can solve the problems affecting the adjustment characteristics, etc., and achieve the effect of simple function and simple switching position
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[0021] in figure 1 with 2 The exemplary embodiment of the gear pump according to the invention shown in is designed as an external gear pump. The gear pump has a pump housing 10 with a cover 12 attached. The drive shaft 14 is rotatably supported in the cover 12. The drive shaft 14 is connected to a drive gear or a drive conveying wheel 16 in a rotationally fixed manner, and the latter is connected in a meshing manner with a driven gear or a conveying wheel 18. The gear pump is provided with a moving unit 20 for changing the delivery volume, which is movably installed between the first pressure chamber or control chamber 22 and the second pressure chamber or control chamber 24. A pressure spring 26 acting on the mobile unit 20 is installed in the second control chamber 24. It applies a restoring force to the moving unit 20 in the direction of the first control cavity 22.
[0022] The moving unit 20 can move axially according to the double arrow 28. It includes a driven shaft 30...
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