Study on the Power Mechanism of Urban-Axial-Development’s Evolution;

Analysis the producing ways of axial clearance of bent axises on X195 diesel;

The method of eliminating axial clearance,logical fixing configuration and effective guard of ballscrew nut pair are all introduced in this paper.

It was found that these faults were attributed to(1) the excess axial clearance of the rolls at the bearing seat,and(2) the excess bouncing resulting from the unbalanced force applied to the rubber mat of the rolls.

The experimental investigation of stator clocking effect with different axial gaps shows that the variation of efficiency increases while the mass flow rate increases at fixed axial gap,but the pressure ratio changes little.

Based on parameter graph modelling axial gap can be analysed by this system during the assembling of turbodrill.

Analysis of the effect of axial spacing of two successive blade rows on the measured mean flow coefficient at stall inception and on the flow range of compressor under multi-cell rotating stall operating conditions proves that the stator can suppress the flow disturbance in the compressor and strengthen the stability of the compressor.

In order to investigate the impact of the rotor-to-stator axial spacing on the compressor stalling characteristics, experimental studies for characteristics of the low speed research compressor with different rotor/stator gaps had been carried out.

The experimental results of a low speed single stage compressor show that stall flow coefficient decreases with the decrease of the axial spacing between rotor and stator because of the increas.