Share

IIR document

Experimental study on the output characteristics of valved linear compressor with intermittently connecting compression chamber and back chamber.

Author(s) : DING L., SHA X., HU R., LIU S., JIANG Z., WU Y.

Type of article: IJR article

Summary

Piston offset will affect the output characteristics of valved linear compressors. It will lead to reduced effective piston stroke and increase the risk of cylinder collision. In order to suppress the piston offset, the compression chamber and the back chamber are intermittently connected by a external bypass pipe, and the connection time is controlled by a solenoid valve. The effect of solenoid valve operating frequency on the offset value and compressor output characteristics was studied. The results show that the piston offset can be effectively suppressed when the bypass pipe is connected at high frequency (≥1 Hz). Meanwhile, the effective stroke is increased by about 1.49 mm, the pressure ratio is increased by 10.7 %, and the mass flow rate is increased by 14.2 %. Moreover, the suppression effect of piston offset remains basically unchanged when the operating frequency of the solenoid valve exceeds 1 Hz. Another interesting result is that the higher the frequency of the solenoid valve operation, the smaller the fluctuation caused by this method. This research provides a basis for machining the anti-offset hole in the piston instead of the external bypass pipe to suppress the offset.

Available documents

Format PDF

Pages: 340-348

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Experimental study on the output characteristics of valved linear compressor with intermittently connecting compression chamber and back chamber.
  • Record ID : 30033483
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 170
  • Publication date: 2025/02
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2024.12.006

Links


See other articles in this issue (37)
See the source

Indexing