A compressor

EP4634529A1Pending Publication Date: 2025-10-22ARCELIK AS
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Patent Information

Application Number
EP2023904144
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-12-12
Filing Date
2023-07-06
Publication Date
2025-10-22

AI Technical Summary

Technical Problem

In hermetic compressors, increased refrigerant fluid temperature reduces the amount entering the compression volume, decreasing volumetric efficiency and compressor capacity, and excessive inlet temperature raises cylinder body temperature, adversely affecting the compression process.

Method used

A muffler with a variable volume design, where a movable wall divides the muffler casing into two sections, with a spring as the movement member, adjusts based on refrigerant flow rates, optimizing the muffler's volume usage at varying compressor speeds to enhance efficiency.

Benefits of technology

The adjustable volume muffler improves the efficiency of the compressor by utilizing half the volume at low speeds and full volume at high speeds, maintaining performance without negative calorimeter test results compared to current technologies.

✦ Generated by Eureka AI based on patent content.

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Abstract

In cooling devices, the circulation of the refrigerant fluid used for refrigeration is provided by a compressor (1). The compressor (1) comprises a motor; a casing which supports the components therein; a cylinder which is disposed in the lower casing and the upper casing so as to ensure the pumping of the refrigerant fluid therein; a valve table which enables the low pressure refrigerant fluid to be taken into the cylinder and the high pressure refrigerant fluid to be directed to the cylinder; a cylinder head which is provided on the cylinder and which provides the circulation of the low and high pressure refrigerant fluid; a piston which compresses the refrigerant fluid in the cylinder; a crank which transfers the movement from the motor; a connection rod which transfers the movement from the crank to the piston; and a crankpin which connects the connection rod and the piston to each other.
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