Reciprocating Compressor Suction Muffler With Resonance Noise Damping
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Solution Overview
Problem
Conventional reciprocating compressors suffer from noise issues due to the constant opening and closing of suction valves, which are often complicated to install and can harm compressor efficiency.
Innovation Solution
A suction muffler integrated into a flex mount and piston assembly, featuring multiple resonance chambers designed as Helmholtz resonators to dampen noise without affecting compressor performance, with a simple snap-fit installation mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional mufflers are installed to reduce noise from suction valve pulsation, then noise reduction is achieved, but device complexity increases and compressor efficiency may be harmed
Solution Approach 1:
The suction muffler is integrated directly into the piston assembly, merging two previously separate components (muffler and piston) into a single unified structure. The muffler chambers are formed within the piston body itself, eliminating the need for separate muffler installation and reducing overall device complexity while maintaining noise reduction functionality.
Solution Approach 2:
The piston assembly is designed to serve multiple functions: it provides the traditional compression function while simultaneously incorporating suction muffler chambers that reduce noise from suction valve pulsation. This multi-functional design eliminates the need for dedicated noise reduction components, simplifying the overall system.
2Object-affected harmful factors
If conventional mufflers are installed to reduce noise from suction valve pulsation, then noise reduction is achieved, but installation difficulty increases
Solution Approach 1:
By integrating the muffler chambers directly into the piston assembly during manufacturing, the invention eliminates the need for separate muffler installation. The suction muffler becomes an inherent part of the piston, making installation as straightforward as installing the piston itself, thereby significantly improving ease of operation.
3Ease of operation
If suction valve is designed to be thin enough to bend under gas pressure, then valve operation is enabled, but noise generation increases
Solution Approach 1:
The invention accepts the necessary thin valve design for proper operation but converts the resulting noise harm into a benefit by incorporating muffler chambers within the piston assembly. These chambers capture and dampen the noise generated by the thin valve's rapid opening and closing, transforming the noise problem into an opportunity for integrated noise control.
Solution Approach 2:
The suction muffler chambers act as an intermediary between the noise source (suction valve) and the surrounding environment. The chambers capture sound waves from the valve operation and dissipate them through the chamber structure, mediating the noise transmission while allowing the thin valve to operate effectively.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively reduces noise generated by suction valve operation while maintaining compressor efficiency and ease of installation.
Implementation Method 1
A suction muffler integrated into a flex mount and piston assembly, featuring multiple resonance chambers designed as Helmholtz resonators to dampen noise
Data Source
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AI summary
A reciprocating compressor includes a piston slidably mounted within a compression chamber and defining a suction port for receiving a flow of gas. A flex mount is mechanically coupled to the piston and has an inner surface that defines a suction cavity. A suction muffler is positioned at least partially within the suction cavity and includes an inlet tube extending along the axial direction within the suction cavity and defining an inlet passageway configured to receive the flow of gas and a plurality of chamber plates that extend along the radial direction from an outer surface of the inlet tube, the plurality of chamber plates and the flex mount defining a plurality of resonance chambers to reduce compressor noise.