Impact Fatigue Characteristics of Valve Leaves for Small Hermetic Reciprocating Compressors

A.C. Altunlu, Ismail Lazoglu, Emre Oguz, Serkan Kara

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Abstract

This paper presents an investigation on the impact fatigue characteristics of valve leaves that are prevalently used in hermetic reciprocating compressors especially for the household type refrigerators. The investigation relates the impact fatigue lifetime of the valve leaves that is the heart of the compressor, with the working temperature, material type (carbon steel, stainless steel and improved stainless steel grade) and tumbling duration after the manufacturing process. The investigation provides a better understanding of the impact fatigue characteristics of valve leaves while designing a high performance compressor to decrease the energy consumption. A unique automated impact fatigue test system was designed and produced, which enables to carry out impact fatigue tests of the compressor valve leaves under the desired impact velocities. In the test system, original valve plate and valve leaf couple was utilized through the experimentation in order to simulate the real behavior in the compressor. A fixture was designed to mount the valve plate. The main principle of the system is to create pulsating airflow through a high frequency solenoid valve. The impact fatigue life was determined for various impact velocities and at different operating temperatures.
Original languageEnglish
Title of host publicationInternational Compressor Engineering Conference
Place of PublicationWest Lafayette, Indiana, USA
PublisherPurdue University
Pages1-7
Publication statusPublished - 12 Jul 2010
Event20th International Compressor Engineering Conference at Purdue - West Lafayette, Indiana, USA
Duration: 12 Jul 201015 Jul 2010

Conference

Conference20th International Compressor Engineering Conference at Purdue
Period12/07/1015/07/10
Other12-15 July 2010

Keywords

  • Onderzoek van algemene industriele aardMechanical engineering and technology

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