Internal gear machine with helical toothing
AssigneeHydraulik Nord Technologies GmbH
InventorsArtur Bohr, Thomas Pippes
Life of this patent
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Abstract
The invention relates to an internal gear machine (10) having a housing (12) which forms a cavity (14) in which an internally toothed ring gear (18) and an externally toothed pinion (16) are arranged, the toothings (24, 26) of which are in meshing engagement with one another in certain regions and the axes of rotation (20, 22) of which run parallel to and spaced apart from one another, wherein at least one filler piece (30, 30′) rests against the first and second toothings (24, 26), which divides the cavity (14) into two fluidically separate regions. It is provided that the toothing (24, 26) is designed as helical toothing or arrow toothing.
Claims16
An internal gear machine comprising:
- a housing that forms a cavity;
- an internally toothed ring gear and an externally toothed pinion arranged in the cavity,
- wherein
- a plurality of toothings of the internally toothed ring gear and the externally toothed pinion are in meshing engagement with one another in one or more regions,
- axes of rotation of the internally toothed ring gear and the externally toothed pinion run parallel to one another and are spaced apart from one another,
- at least one filler piece rests against first and second toothings of the plurality of toothings and divides the cavity into two fluidically separate regions,
- the plurality of toothings is formed as helical toothing or arrow toothing, and
- surfaces axially closing off the cavity have mutually non-congruent pressure fields and control edges that are rotatable relative to one another in a circumferential direction.
Dependencies are inferred from the claim text.