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Suction muffler for a refrigeration compressor

A technology for refrigeration compressors and mufflers, which is used in refrigerators, compressors, household refrigeration devices, etc.

Inactive Publication Date: 2008-04-30
WHIRPOOL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The known volumetric-tube suction silencers, while widely used, have the disadvantage that said tubes introduce noise peaks in special operating modes

Method used

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  • Suction muffler for a refrigeration compressor
  • Suction muffler for a refrigeration compressor
  • Suction muffler for a refrigeration compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The invention will be described in terms of a compressor of the type applied in a refrigeration system comprising a motor-driven compressor assembly inside a hermetic housing 1 provided with a cylinder block internally defined with a cylinder 2 having a piston 3 at one end , and is closed at the opposite end by the cylinder head 4, the cylinder head 4 is internally defined and the compression chamber 6 defined between the top end portion of the piston 3 in the cylinder 2 and the valve plate 7 is selectively passed through the suction hole 7a and the exhaust hole 7b is in fluid communication with the suction chamber (not shown) and the exhaust chamber 5, wherein the valve plate 7 is located between the opposite end of the cylinder 2 and the cylinder head 4, and the suction hole 7a and the exhaust hole 7b are formed by the suction hole 7b respectively. The valve and vent valves 8a, 8b are closed.

[0019] According to the figure, the gas sucked by the compressor and the g...

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PUM

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Abstract

A suction muffler for a refrigeration compressor, comprising a hollow body (10) defining at least one dampening chamber (13, 14) that carries a gas inlet duct (20) and a gas outlet duct (30) presenting an inlet opening (21,31) and an outlet opening (22, 32), for communicating the interior ant the exterior of the dampening chamber (13, 14), at least one of the gas inlet and gas outlet ducts (20, 30) presenting at least one closed end (23, 33), one of the inlet and outlet openings (21, 22, 31, 32) being positioned at a certain distance from said closed end (23, 33), smaller than the distance of said opening in relation to the other opening of the same duct (20, 30) and in a region of the latter presenting a minimum acoustic pressure for a determined frequency, the dimensioning of said duct (20, 30) and of the cross section of the first of said openings (21, 31; 22, 32) being achieved so as to minimize the gas pulsation noises inside the suction muffler.

Description

technical field [0001] The present invention relates to a suction muffler for a refrigeration compressor, in particular to a suction muffler for a refrigeration compressor of the type of a small refrigeration system such as a refrigeration device, a refrigerator, a drinking fountain, or a refrigerator. The device is arranged in the area where the refrigerant gas enters the hermetic compressor. Background technique [0002] Typically, compressors in refrigeration systems have a sound damping system or suction muffler at their suction end, which is fitted in the housing and directs the gas from the suction duct of said refrigeration system into a suction valve, which The gas valves are usually configured to selectively and automatically open corresponding inlets on a valve plate on which the suction and discharge valves of the compressor are usually mounted. [0003] The suction muffler has several important functions for the normal operation of the compressor, such as: guidi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/00F04B39/16
CPCF04B39/0066F04B39/0061F04B39/0038F04B39/1066F04B35/04
Inventor 爱德华多·德索萨·阿尔瓦伦加R·林克
Owner WHIRPOOL SA
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