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Suction valve with unloader

A technology of unloader and suction valve, applied in the direction of control valve, valve device, function valve type, etc., can solve the problem of unattractive supplementary equipment, increase production cost, etc., to prevent unscrewing, reduce swing movement, and reduce wear Effect

Active Publication Date: 2012-07-11
HOERBIGER KOMPRESSORTECHNIK HLDG GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although retrofitting is possible due to the available installation space, the entire unloader must be replaced and the valve seat must also be additionally machined, which in many cases makes retrofitting unattractive from a practical point of view.
On the other hand, this unloader anti-rotation device requires machining of the valve seat for a reliable and durable function, which increases the production costs of such valves

Method used

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  • Suction valve with unloader
  • Suction valve with unloader
  • Suction valve with unloader

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The basic structure of the suction valve 1 is sufficiently known, so reference is made here to figure 1 and 2 discuss it only briefly. A suction valve 1 , for example for use in compressors, comprises a valve seat 3 and a valve opening limiter 2 . Between the valve seat and the valve opening limiter is arranged a valve element 4 which moves back and forth between the valve seat 3 and the valve opening limiter 2 and cooperates with the valve seat 3 in such a way that it undertakes the sealing Functionally, the valve element closes and opens the annular channel 13 in the valve seat 3 . The individual parts of the suction valve 1 are held together by a continuous screw 8 screwed into the valve opening limiter 2 and an opposite valve nut 10 . The distance between the valve seat 3 and the valve opening limiter 2 and thus the possible valve stroke is adjusted by means of a central spacer 9 arranged on the screw 8 . An annular throughflow channel 14 is also provided in th...

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PUM

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Abstract

In order to prevent the unloader from rotating relative to the valve seat, it is proposed to design the anti-rotation lock for the unloader as an anti-rotation locking disk (16) on which a central recess (17) is provided which has a cross-section that is diametrically opposed and matched to the valve nut (10), wherein the anti-rotation locking disk (16) is arranged with its central recess (17) in a non-rotational manner on the valve nut (10), and the outer contour of the anti-rotation locking disk (16) has a non-circular cross-section, and a central recess (24) is provided on the unloader (20), said central recess having an inner contour diametrically opposed and matched to the outer contour, and the unloader (20) is arranged with its central recess (24) on the anti-rotation locking disk (16).

Description

technical field [0001] This specific invention relates to a suction valve, which has a valve seat and a valve opening limiter, and a valve element can be moved back and forth between the valve seat and the valve opening limiter; Unloader refers to the unloader / lifting clamp (Abhebegreifer), these unloader fingers pass through the channel in the valve seat and rest on the valve element, wherein the unloader is relative to the valve seat by means of an unloader anti-rotation device Arranged against rotation and guided in the axial direction. Background technique [0002] Compressors or compressor suction valves are often equipped with unloaders. This unloader is basically used, as is well known, to start the compressor without load or to switch the compressor to no-load operation or to adjust the compressor. [0003] In order to prevent wear of the unloader on the guide, in particular in dry-running compressors, guide strips and guide rings have been used in unloader guides ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/10
CPCF04B39/1033F04B39/08F04B49/243F04B39/1053F16K15/08Y10T137/7837Y10T137/7859Y10T137/7864Y10T137/7865Y10T137/7904
Inventor M·拉格勒尔G·施蒂格尔玛
Owner HOERBIGER KOMPRESSORTECHNIK HLDG GMBH