Evaluation of effect of leakage in cylinder-piston seals on working process of low-speed long stroke piston units

Abstract

The theoretical analysis carried out in this paper shows the relevance of the topic of determining the dependencies of conditional gaps in long-stroke units on the discharge pressure for various designs of the compression stage. Significant errors in the performance of calculations, especially for large diameters of the steps, make it unacceptable to use the values of the gaps obtained for the existing structures of piston units. In the future, it will be necessary to carry out field tests to determine the dependencies of the gaps on pressure and the design of the unit.

Keywords

• long stroke piston compressor
• piston pump
• working processes of a piston compressor and pump
• cylinder strength calculation
• leakage in a cylinder-piston seal
• temperature deformations