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Gear mechanism

A technology of gear machines and gears, which is applied to mechanical equipment, machines/engines, liquid fuel engines, etc., and can solve problems such as power loss

Inactive Publication Date: 2005-01-19
LUK LAMELLEN & KUPPLUNGSBAU BETEILIGUNGS KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During pump operation, considerable power losses occur due to eddy currents in the region of this cavity

Method used

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  • Gear mechanism
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Embodiment Construction

[0016] Figure 1 shows a gear machine, in particular an internal gear machine 1, such as an internal gear pump or pump, in which an internally meshing ring gear 2 and an externally meshing pinion 3 are rotatably arranged And supported in a hole 4 of the housing 5. The pinion 3 is mounted rotatably in the housing 5 by means of a bearing tube 6 . The shaft 7, like the gearbox main shaft, passes through this bearing tube. The gearbox main shaft 7 has a connecting element 8, such as a substantially circular flange element, which is connected in a rotationally fixed manner with the gearbox main shaft 7 and also with the pinion, so that the When 7 rotates, pinion 3 is driven.

[0017] The flange element 8 radially inside has a toothing 8a or at least one protrusion or several protrusions which engage with opposing teeth 9 of the shaft 7 or corresponding grooves. The flange element 8 has external teeth 8 b or projections radially on the outside, which mesh with corresponding intern...

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PUM

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Abstract

The present invention related to hydraulic pressure gear wheel machine such as pump or motor.

Description

technical field [0001] The invention relates to an internal gear machine, such as an internal gear pump, which has a housing and a first gear, such as an internal gear, rotatably supported in the housing, and a rotatably supported, driven A second gear, such as a pinion. Background technique [0002] Such an internal gear machine is already known, for example, from DE 199 23 851 . In the internal gear machine described therein, there is a shaft for the drive, for example a gearbox main shaft, with a relatively large crescent-shaped hollow area between the internal gear and the pinion. During pump operation, considerable power losses occur due to eddy currents in the region of this cavity. Contents of the invention [0003] The object of the present invention is to provide a hydraulic gear machine which is improved compared to the state of the art, especially with regard to the power losses mentioned. [0004] The internal gear machine according to the invention, such as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/10F04C15/00
CPCF04C2/101
Inventor 克劳斯-迪特尔·布赫米勒马尔科·格蕾特尔
Owner LUK LAMELLEN & KUPPLUNGSBAU BETEILIGUNGS KG
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