Hermetic refrigerant compressors like, e.g., the ET 499.01 have a welded sheet steel housing. The drive motor and refrigerant compressor are fitted in this capsule. Unlike open compressors, the refrigerant compressor is directly connected to the drive motor and therefore does not require any floating seal. The motor compressor is suspended by springs in the capsular housing which minimises the transmission of vibration to the capsule body, thereby reducing noise emission.
Learning Objectives / Experiments
- layout and function of a hermetic refrigerant compressor