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Pressure flow regulator, adjustment unit for plunger machine, and adjusting method of adjustment unit

A technology of regulating unit and regulator, which is applied in the direction of machine/engine, fluid pressure actuating device, mechanical equipment, etc., can solve the problems of low firmness of proportional valve, loss of efficiency of plunger machine, and high cost of proportional valve, and achieve small manufacturing Cost, electromagnetic interference robust, easy to construct effects

Inactive Publication Date: 2013-12-04
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of such a pressure delivery flow regulator is that the proportional valve is more expensive and less robust
In addition, the proportional valve has relatively high leakage, which leads to a loss of efficiency of the piston machine

Method used

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  • Pressure flow regulator, adjustment unit for plunger machine, and adjusting method of adjustment unit
  • Pressure flow regulator, adjustment unit for plunger machine, and adjusting method of adjustment unit
  • Pressure flow regulator, adjustment unit for plunger machine, and adjusting method of adjustment unit

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Embodiment Construction

[0040] according to figure 1 , shows a hydraulic circuit diagram with an adjustable plunger machine 1 . The piston machine can be an axial or radial piston machine, which can be used as a hydraulic pump or hydraulic motor.

[0041] The invention is explained below with the aid of a deflectable axial piston machine with a swash plate drive. An adjusting cylinder 2 is provided for deflecting the swash plate (not shown) of the piston machine 1 . The adjusting cylinder has a cylinder chamber 6 delimited by a piston 4 . The piston is connected to a swash plate (not shown) of the plunger machine 1 via a piston rod 8 on one side. Movement of the piston 4 in the direction of enlargement of the cylinder chamber 6 causes the swash plate to shift in the direction of enlargement of the displacement of the piston machine 1 . Conversely, a displacement of the piston 4 in the direction of reduction of the cylinder chamber 6 causes a deflection of the swash plate in the direction of reduc...

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PUM

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Abstract

The invention relates to a pressure flow regulator, an adjustment unit for a plunger machine, and an adjusting method of yjr adjustment unit. An adjustment unit of a hydraulic plunger machine capable of being adjusted having a pressure flow regulator is disclosed. The adjustment unit has at least one adjusting cylinders for adjusting the discharge amount of the plunger machine, the adjusting cylinder being operated through a switching valve.

Description

technical field [0001] The invention relates to a pressure feed flow regulator for regulating an adjusting unit of an adjustable hydraulic piston machine. Furthermore, the invention relates to an adjusting unit for such a plunger machine with such a pressure feed flow regulator and to a method for adjusting the adjusting unit. Background technique [0002] An adjustable plunger machine in the form of a hydraulic pump is known from DE 10 2010 048 070 A1. The swivel angle of the plunger machine can be varied by means of two adjusting cylinders. To adjust the one adjusting cylinder and thus to adjust the swivel angle of the piston machine, a pressure feed flow regulator is provided. The pressure delivery flow regulator has two proportional valves, through which the cylinder chamber of the regulating cylinder can be connected with the pressure pipeline connected to the plunger machine or can be connected with the storage tank pipeline . The proportional valve is hydraulicall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/04F15B11/08F15B13/02
CPCF15B2211/20553F15B11/055F04B49/002
Inventor S.施密特
Owner ROBERT BOSCH GMBH