可变环

可变喷嘴环截面涡轮增压器是可变截面涡轮增压的一种。

The variable nozzle turbocharger is a kind of variable geometry turbocharger .

所获结论有助于带可变喷嘴环的轴流式定压涡轮增压器研制与推广，为以后的研究工作奠定基础。

The conclusions redound to the developing and extending of axial-flow constant press turbocharger with variable nozzle ring , and lay a foundation for later work .

首先，本文介绍了增压柴油机低工况的性能和瞬态特性，并阐述定压增压器采用可变喷嘴环的意义。

Firstly , this thesis introduces the performance and transient characteristic of supercharged diesel engine on low working condition , and expatiates the significance of applying variable nozzle rings on constant pressure turbochargers .

本文还介绍了柴油机电子控制技术在废气涡轮增压器可变喷嘴环、可变进气涡流、可变进排气门及废气再循环等领域里的发展。

In addition , the development of the diesel engine electronic control technology in the exhaust turbocharger with variable nozzle ring , variable intake swirl , variable intake and exhaust doors and exhaust recycling fields were discussed in detail .

热特性参数可变时等厚度环肋传热的优化研究

Optimization of Heat Transfer of Uniform Annular Fins with Variable Thermal Parameters Cherishing Time

热特性参数可变时变截面环肋的传热研究

A Study on Heat Transfer in the Fins of variable Thermal parameters and variable Cross Section