#### Tehnički vjesnik, Vol. 24 No. Supplement 2, 2017.

Izvorni znanstveni članak

https://doi.org/10.17559/TV-20151117130112

Valve dynamics in reciprocating compressors for motor vehicles

Dragan Taranović orcid.org/0000-0001-7940-9412 ; Faculty of Engineering, University of Kragujevac, Sestre Janjic 6, 34000 Kragujevac, Serbia
Dobrivoje Ninković ; ABB Turbo Systems Ltd, Ruchwiesenstr. 28, Winterthur 8404, Switzerland
Aleksandar Davinić ; Faculty of Engineering, University of Kragujevac, Sestre Janjic 6, 34000 Kragujevac, Serbia
Radivoje Pešić orcid.org/0000-0002-9669-1744 ; Faculty of Engineering, University of Kragujevac, Sestre Janjic 6, 34000 Kragujevac, Serbia
Jasna Glišović orcid.org/0000-0002-8251-1722 ; Faculty of Engineering, University of Kragujevac, Sestre Janjic 6, 34000 Kragujevac, Serbia
Saša Milojević ; Faculty of Engineering, University of Kragujevac, Sestre Janjic 6, 34000 Kragujevac, Serbia

Puni tekst:

str. 313-319

preuzimanja: 500

Puni tekst:

str. 313-319

preuzimanja: 850

###### Sažetak

Reliability and thermodynamic properties of reciprocating compressors are largely dependent on the valve. Since the valves open and close automatically, there is an intensive impact of the valve and the sealing element dynamics to the gas flow through the valve. Poor valve characteristics inevitably lead to degradation of compressor performance and/or short lifetime of the valve. A short lifetime of the valve is the result of excessive impact forces between the sealing element and other parts of the valve assembly. Matching the valves to the specific reciprocating compressor is a complex task that requires the use of appropriate mathematical models before the realization of the valve. The mathematical model for the prediction of the valve dynamics is presented within this paper. The mathematical model is verified by measurements of thermodynamic characteristics of the specific reciprocating compressor used in motor vehicles. It is concluded that the mathematical model agrees well with the results of laboratory tests.

186070

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