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The effect of dynamics of the swash plate-slippers-piston assembly on friction torques in bearings in compressor of cooling aggregate

Woźniak Marek, Szydłowski Tomasz, Siczek Krzysztof

Mechanics and Mechanical Engineering

2020

Vol. 24, nr 1

42--55

The swash plate type compressor utilized in car air conditioning devices and cooling system was analyzed in this study. Proper dynamic behavior of the components in such a compressor affected the correct functioning of the whole system. The aim of the study was to identify the characteristics of the main motion components in the swash plate-slippers-piston assembly of the compressor and to estimate the friction torques in its bearings. Some models of this assembly are elaborated and presented in the paper. The main components of slipper complex motion were identified, such as reciprocal motion along the axis of piston, rotation around piston axis, and short-time rotation around its own axis. Friction torque in axial bearing was higher than in journal bearing and varied with the rotational angle. Friction torques in journal bearings varied with the rotational angle and had different courses for two bearings of the compressor.