Pressure Signatures of Damaged Valves

Selection of shaft geometry is critical to the overall performance of a rotary compressor. Consideration is given to the development of rotary compressor shaft geometries to optimize efficiency and reliability. The cylinder to piston dynamic clearance is of prime importance with respect to leakage losses. An analysis of bearing film thicknesses and shaft deflection was conducted to fully evaluate the impact of the clearance between cylinder and piston under operating conditions. Trade-offs between shaft stiffness and the impact on efficiency due to increasing component size is discussed. The characteristic bearing edge loading rotary compressors is a major reliability Examination of the causes of edge loading is design responses evaluated. Matching shaft to local bearing stiffness is critical. found in concern. made and stiffness Reliability and performance testing has confirmed the validity of the design approach selected. DIMENSIONAL OPTIMIZA'I'ION As rotary compressor technology becomes increasingly widespread, more is understood about the complex interrelationships between component geometries and factors such as efficiency, weight, machined surface area, bearing loads, vane P-V's, radiated noise, etc.