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Pneumatic tool exhaust muffler

A technology for pneumatic tools and mufflers, which is used in manufacturing tools, striking tools, exhaust devices, etc., and can solve problems such as slowing down airflow and restricting airflow.

Active Publication Date: 2021-03-05
SNAP ON INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these materials cause airflow to be restricted, which slows it down and converts kinetic and acoustic energy into heat, thereby reducing the amount of noise produced by the exhaust
The result of adding these materials to the exhaust port is that the airflow is restricted and therefore the tool is throttled

Method used

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  • Pneumatic tool exhaust muffler
  • Pneumatic tool exhaust muffler
  • Pneumatic tool exhaust muffler

Examples

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Embodiment Construction

[0020] While the invention is susceptible to embodiments in many different forms, the preferred embodiments of the invention which are shown in the drawings and which will be described in detail herein are to be understood as this disclosure is to be considered as a principle example of the invention. , and are not intended to limit the broad aspects of the invention to the illustrated embodiments. As used herein, the term "present invention" is not intended to limit the scope of the claims of the present invention, but is used to discuss exemplary embodiments of the present invention for explanatory purposes only.

[0021] refer to figure 1 and figure 2 , shows a motor body 100 having an intake passage 102 and an exhaust passage 104 . Air flows through the intake passage 102 to power the rotor of a motor such as a vane pump (not shown), which results in a vane pass frequency that produces an audible whine-like noise. The frequency of the noise depends on the number of van...

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Abstract

A high pass muffler for a pneumatic tool that allows for high pass through of exhaust air. The muffler dampens noise generated by the exhaust air by incorporating channels in walls of the muffler thatact as Helmholtz resonators.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to and benefit from U.S. Provisional Patent Application No. 62 / 892,598, filed August 28, 2019, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention generally relates to pneumatic tools. More specifically, the present invention relates to silencers for air tools. Background technique [0004] Silencers are often used on the exhaust ports of air powered tools (also known as air tools) to reduce the amount of noise produced by the tool's exhaust. Especially, in a confined space, such as on a production line, when a large number of air power tools are used, the air power tools will generate high-level noise exceeding 80 dB. The noise generated by the exhaust is derived from the frequency of passage of air through the turbine motor driving the air tool and the high velocity of the exhaust flow. Additionally, noise is produced by vibrati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D25/00F01D25/24F01D25/30G10K11/172
CPCF01D25/00F01D25/24F01D25/30G10K11/172G10K11/161F05D2260/963F01N1/023F01N1/084F01N13/1894F01N2590/06B25D17/12
Inventor 奥托里奥·库特-阿恩贝克
Owner SNAP ON INC