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US 6,186,757 B1Granted
Internal-gear machine
AssigneeEckerle Industrie-Elektronik GmbH
InventorReinhard Pippes
Life of this patent
Estimating the term…
Abstract
An internal-gear machine has a casing and a running assembly accommodated in the casing and comprising a rotatably mounted pinion and an internally toothed annular gear meshing with the pinion. The annular gear is widened at its outer periphery to form a running ring which can be integral with the internally toothed part of the annular gear or a separately produced component which is non-rotatably connected to the internally toothed part.
Claims22
An internal-gear machine comprising:
- a casing, and
- a running assembly accommodated in the casing, the running assembly comprising a pinion having external teeth, means for rotatably mounting the pinion in the casing, an annular gear and bearing means for rotatably mounting the annular gear in the casing, wherein the annular gear includes an internally toothed part meshing with the external teeth of the pinion and a running ring fixedly mounted on an outer periphery of the internally toothed part so that the running ring and the internally toothed part rotate together, the running ring being wider in the axial direction than the internally toothed part and supporting the annular gear in the bearing means.
An internal-gear machine comprising:
- a casing,
- a bearing ring in the casing,
- an annular gear rotatably mounted in the bearing ring, the annular gear comprising an internally toothed part and a running ring fixedly mounted on an outer periphery of the internally toothed part so that the running ring and the internally toothed part rotate together, the running ring being wider in the axial direction than the internally toothed part and cooperating with the bearing ring,
- a pinion,
- means rotatably mounting the pinion in the casing,
- the pinion having teeth meshing with the annular gear and defining a suction chamber and a pressure chamber of the tooth arrangement by full engagement into gaps between the teeth of the annular gear on the one hand and sealing contact with the tips of the teeth of the annular gear in an engagement-free annular gear region which is approximately diametrically opposite the engagement into the gaps between the teeth on the other hand.
3 more elements
Dependencies are inferred from the claim text.