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Hydrostatic Axial Piston Machine

An axial piston machine and hydrostatic technology, applied in the direction of liquid displacement machinery, liquid fuel engine, reciprocating piston engine, etc., to reduce the risk of tearing

Active Publication Date: 2022-07-22
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This means additional expenditures in planning the plant and additional expenditures in purchasing, storing and supplying different travel bushings and in installing the different variants of the axial piston machine

Method used

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  • Hydrostatic Axial Piston Machine
  • Hydrostatic Axial Piston Machine
  • Hydrostatic Axial Piston Machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] according to figure 1 and figure 2 The Hydrostatic Axial Piston Machine is an adjustment pump constructed with a swash plate structure for hydrostatic drive in an open hydraulic circuit. The volume flow of the adjustment pump is proportional to the drive speed and the displacement volume (ie, the amount of pressure medium delivered per revolution). The adjusting pump includes a tank-shaped casing 10 , a connecting plate 11 closing the open end of the casing 10 , a drive shaft 12 , a cylinder 13 , a control plate 14 and a swash plate 15 , the control plate is located between the cylinder 13 and the connecting plate 11 . Between and fixed relative to the connecting plate, the inclined plane of the swash plate can be adjusted with respect to the axis of the drive shaft, the swash plate is also called a swing frame due to its swingability. In this case, the swivel frame 15 can be swiveled in one direction from a position in which the swivel frame is almost perpendicular ...

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PUM

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Abstract

Hydrostatic axial plunger machine with a cylinder barrel with a hollow cylindrical base body and a running bushing into which a cylinder bore is introduced around a central axis, the running bushing being pressed into the cylinder bore with a matching outer diameter , and the outer end surface of the running bush is located in the region of the mouth of the cylinder hole, and the inner end surface is located in the depth of the cylinder hole. Each running bush has an axially delimited, circumferential recessed area in the outer half in its outer side, the outer half starting from the outer end face. The further development of such a hydrostatic axial-piston machine enables the use possibilities of the hydrostatic axial-piston machine to be extended to application situations with high forces acting between the travel bush and the plunger. For the hydrostatic axial piston machine described above, this task is solved by designing the recessed area of ​​the running bush in such a way that the depth of the recessed area increases in the axial section of the running bush including its axis more than once and decreased more than once.

Description

technical field [0001] The invention relates to a hydrostatic axial-piston machine with a cylinder barrel with a substantially hollow-cylindrical base body and a running bush into which a cylinder bore is introduced around a central axis, the running bushing A sleeve is pressed into the cylinder bore with a matching outer diameter, and the running bush has an outer end face located in the region of the mouth of the cylinder bore and an inner end face located deep in the cylinder bore. Each running bush has an axially delimited, circumferential recessed area in its outer half in its outer side, the outer half starting from the outer end face. In particular, hydrostatic axial piston machines constructed in a swash plate structure are equipped with travel bushings. Background technique [0002] The hydrostatic axial-piston machine is operated in very different operating states, wherein the travel bushing has to satisfy the stresses occurring in the operating state so that the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B1/2014F04B53/16
CPCF04B1/2014F04B53/16F04B1/124F04B1/2035F04B1/20F04B53/166F03C1/0652F03C1/0636F04B1/2078
Inventor S.霍佩T.纳夫茨
Owner ROBERT BOSCH GMBH