By theoretically analyzing dynamic behavior of the crankshaft, the rolling piston and the blade inrolling-piston rotary compressors, constraint forces and sliding speed at each pair of movable machine elements were obtained, and unbalanced inertia forces and compressor vibrations were evaluated. It was concluded that theoretical results have a goodagreement with experimental ones. Moreover, it ...

Electrical on demand supercharging provides an internal combustion engine with the facility to increase its volumetric efficiency without being subject to the mechanical constraints associated with a conventional pressure charging device. This enables improvement in fuel economy through engine downsizing with the added ability to enhance torque. The Visteon Torque Enhancement System (VTES) is a...

This paper deals with a Cuk dc–dc converter as a single-stage power-factor-correction converter for a permanent magnet (PM) brushless dc motor (PMBLDCM) fed through a diode bridge rectifier from a singlephase ac mains. A three-phase voltage-source inverter is used as an electronic commutator to operate the PMBLDCM driving an air-conditioner compressor. The speed of the compressor is controlled ...

One of the possible origins of High Cycle Fatigue in a compressor blade is the rotating stall under the influence of (rotating) inlet pressure or temperature distortion leading to a varying angle of attack on the compressor blades. This paper will be oriented towards the propagation of total pressure and total temperature nonuniformities in axial flow fans and compressors and their subsequent e...

Abstract The dynamics of a transonic buffet flow on the suction side highly loaded 2-D compressor blade model is investigated at chord-based Reynolds number $$1.4 \times 10^6$$ 1.4×106 and an inlet Mach 1.05. Near stall...

This paper presented the theoretical and experimental investigation on ring valve motion and impact stress in a reciprocating compressor for a purpose of extending the life time of valve. A simulation model was established to describe the motion of valve plate and the physical behavior of valve plates during compressor operation was measured using an eddy current displacement sensor to validate...

A new 1-bit full adder (FA) cell illustrating low-power, high-speed, and a small area is presented by combination of transmission gate (TG), pass transistor logic (PTL), float techniques. Using the proposed cell, 4:2 compressor implemented its performance investigated under diverse circumstances voltage, temperature, driving. The process corners are evaluated through process-voltage-temperature...

The Axial compressor is an integrated part of a gas turbine. The central part of compressors is its blades. Blade aerodynamic has a significant effect on compressor performance. Because of the adverse pressure gradient in the compressor, any deviation in the blade profile has a significant influence on the flow field as well as the compressor performance. During the manufacturing and operation ...

The hybrid-power gas engine-driven heat pump (HPGHP) combines hybrid power technology with a gas engine heat pump. The engine in the power system is capable of operating constantly with high thermal efficiency and low emissions during different operating modes. In this paper, the mathematical models of various components is established, including the engine thermal efficiency map and the motor ...