Lubrication Modeling of Reciprocating Piston in Piston Pump with High Lateral Load

Modeling Piston Secondary Motion and Skirt Lubrication with Applications

The interest in reducing emission and improving engine efficiency has become a major push in industry, due to upcoming stricter regulations. A great deal of attention has been given to the frictional losses due to piston and liner interaction, as they represent a significant portion of the total mechanical losses. This thesis work focuses on further development and application of an existing mo...

Calculation of the Hydrodynamic Lubrication of Piston and Piston Rings in Refrigeration Compressors

Gas pump with a magnetically coupled piston

In recent gas-phase nonlinear optics experiments it has been necessaq to prepare gas mixtures with very homogenous composition and temperature inside the measurement cell.’ The gas cell contains a relatively massive electrode structure,’ which is in poor thermal contact with the cell walls, and which leaves no room for an effective stirring device. To effectively mix the gas in the cell we have...

Experiences with Application of a CO2 Reciprocating Piston Compressor for a Heat Pump Water Heater

This paper describes some of the challenges experienced in the application of a carbon dioxide reciprocating piston compressor to a water heating heat pump. Due to the characteristics of CO2 in a trans-critical cycle, including high pressures, high discharge temperatures, and high solubility in oil, particular difficulties may be experienced such as reduced bearing reliability caused by bearing...

Noise Diagnostic Strategies in a Fractional Horsepower Reciprocating Piston Compressor