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Pneumatic blow-off silencer

a blow-off silencer and pneumatic technology, applied in the field of silencers, can solve the problems that the known expansion tube is still not satisfactory in the direction of silencing, and achieve the effect of improving the silencing

Inactive Publication Date: 2005-03-10
VOSS AUTOMOIVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0004] The object on which the invention is based is to improve a silencer of the type mentioned in such a way that markedly more effective silencing is achieved.
[0008] As a further solution according to the invention for achieving the above object, an insulating material, such as wadding or similar soft stuffable fibre material, may be arranged within the expansion space. This measure likewise leads to an improvement in silencing, specifically even without the damping element according to the invention or with a known disc-shaped filter element.

Problems solved by technology

The known expansion tube is still not satisfactory where silencing is concerned.

Method used

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  • Pneumatic blow-off silencer
  • Pneumatic blow-off silencer

Examples

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Embodiment Construction

[0013] A silencer 1 according to the invention is to be arranged in an intake line (not illustrated) of a pneumatic pressure system. The silencer 1 consists of a cartridge-like housing 2 which surrounds an expansion space 4 and which has an inlet 6 located on one side and an opposite outlet 8. As illustrated, the expansion space 4 has an inner cross section A1 widened with respect to the inlet 6 and the outlet 8, according to the “double cross-sectional jump” principle. The inlet 6 is connected via a switching-valve arrangement, not illustrated, to a compressor 10 which builds up a pressure “p” in any pneumatic assembly 12. For this purpose, the compressor 10 sucks in air from an atmosphere side through the silencer 1, this being illustrated by broken arrows 14. For this intake flow 14, the outlet 8 actually forms an inlet and the inlet 6 actually forms an outlet. In specific operating states of the pneumatic pressure system, however, it is necessary at least partially to discharge ...

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Abstract

The present invention relates to a silencer for the damping of noises occurring in pneumatic pressure systems as a result of pressure blow-off flows from a pressure side to an atmosphere side. The silencer consists of a housing surrounding an expansion space, with a pressure-side inlet for the blow-off flow and with an opposite atmosphere-side outlet. A damping element consisting of a porous material through which a flow is capable of passing is arranged within the expansion space in the vicinity of the inlet. The damping element has a flow area through which a flow is capable of passing, which is larger than the inner cross-sectional area (A1) of the expansion space.

Description

CROSS REFERENCE TO RELATED APPLICATION [0001] This application claims priority to German Utility Model Application Number 203 14 134.2 filed Sep. 10, 2004. BACKGROUND OF THE INVENTION [0002] The present invention relates to a silencer for the damping of noises occurring in pneumatic pressure systems as a result of pressure blow-off flows from a pressure side to an atmosphere side. The silencer consists of a housing surrounding an expansion space with a pressure-side inlet for the blow-off flow and an opposite atmosphere-side outlet. BRIEF SUMMARY OF THE INVENTION [0003] Such a silencer is known by the term “expansion tube”. Silencing is based on the known principle of “double cross-sectional jump”, in that the inlet first widens into the expansion space (cross-sectional enlargement) and the latter transitions into the narrowed outlet (cross-sectional reduction). In addition, in the known expansion tube, a disc-shaped air filter (foam filter or sintered filter cartridge) correspondin...

Claims

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Application Information

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IPC IPC(8): F16L55/027
CPCF16L55/02745
Inventor BORGMEIER, OLAV
Owner VOSS AUTOMOIVE