Analysis of damage of the cooling aggregate in vehicle with cold storage chamber

• Autorzy: Woźniak M. , Batory D. , Siczek K.

Identyfikatory

DOI

10.5604/01.3001.0012.2520

• Języki publikacji: EN

Abstrakty

EN

Vehicles with cold storage chambers realize the transport of fast spoil articles. The cooling system of such chamber is its critical subsystem, the essential component of which is a cooling aggregate driven by vehicle combustion engine via belt transmission. The main assembly of the analysed aggregate was the axial five-piston compressor. Small aluminum pistons were led in cylinders in fixed head made of aluminum alloy. Such pistons were driven through steel tappets, mating through their spherical surfaces with spherical seats made in small pistons. Through their front surfaces, placed opposite to the spherical surfaces, the spatial disc cam made of aluminum alloy drove small pistons. The cam was mounted on the steel shaft. The co-operation of described parts was in presence of refrigerant oil. The abrasive and fatigue wear of elements occurred. Because of long-term utilizing of the aggregate the damage of radial sealing ring occurred. Then, external impurities of high hardness got into the contact zone between the mating surfaces. The main aim of the study was to analyse consequences of such fact. The failure was noticed in the form of wear of disc cam, front surfaces of tappets, and the plastic deformation in the spherical surfaces of the seats. Then, due to deformation and the displacements of the rotating shaft, wear of the side surface of disc cam during contacts with small pistons surfaces took place. Moreover, we noticed wear of the side surfaces of the pistons and the cylinders mating with them in the fixed head. In the article, we present figures of damaged surfaces of elements and results of the SEM analysis of spherical surfaces of tappets. The material transfer occurred between the spherical surfaces of tappets and their seats.

Słowa kluczowe

EN

cooling aggregate; combustion engine; sealing ring damage; failure; blurring

PL

agregat chłodniczy; silnik spalinowy; uszkodzenie pierścienia uszczelniającego; niepowodzenie

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2018
• Tom: Vol. 25, No. 1
• Strony: 475--482
• Opis fizyczny: Bibliogr. 14 poz., rys.

Twórcy

autor

Woźniak M.

• Lodz University of Technology Department of Vehicles and Fundamentals of Machine Design Stefanowskiego Street 1/15, 90-924 Lodz, Poland tel.:[phone], fax: [phone]

autor

Batory D.

• Lodz University of Technology Department of Vehicles and Fundamentals of Machine Design Stefanowskiego Street 1/15, 90-924 Lodz, Poland tel.:[phone], fax: [phone]

autor

Siczek K.

• Lodz University of Technology Department of Vehicles and Fundamentals of Machine Design Stefanowskiego Street 1/15, 90-924 Lodz, Poland tel.:[phone], fax: [phone]

Bibliografia

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• [8] Górny, K., Tyczewski, P., Zwierzycki, W., The Estimation of the Influence of Mixture Compressor Oils and Refrigerants on the Durability of Nodes of Friction in Cooling Compressors, Tribologia, Vol. 4, pp. 117-128, 2010.
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• [12] Tyczewski, P., Comparison of Wear Friction Pairs in Refrigeration Compressors in Adverse Operating Conditions, Tribologia, Vol. 3, pp. 217-223, 2012.
• [13] Gaziński, B., et al., Technika Chłodnicza Dla Praktyków. Urządzenia chłodnicze i przepisy prawne, Systherm, Poznan 2010.
• [14] Dragomir-Daescu, D., Al-khalidy, A. A., Osama, M., Kliman, G. B., Damage detection in refrigerator compressors using vibration and current signatures, 4th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives, SDEMPED, pp. 355-360, 2003.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).