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与传统的汽轮机叶片负荷分布采用沿流向均匀分布规律，或最大气动负荷点位于叶片前缘的前部加载分布规律所不同的是，具有后部加载叶型的透平叶片，其最大气动负荷位置明显向下游方向移动．这种负荷分布形式使得具有后部加载叶型的叶片具有良好的攻角适应性，以及降低二次流损失的特点．在对国产20万千瓦透平机组进行改造中，采用了以后部加载叶型代替原始传统叶型这一改造措施。通过叶栅实验对具有后部加载叶型的高压级叶栅和原型叶栅进行了对比吹风实验．实验结果表明，后部加载叶型能有效地控制叶栅内二次流动，使瑞壁损失明显降低．采用后部加载叶型对国产老机组进行改造是可行的．
Compared with the traditional turbine blade load distribution using uniform distribution along the flow direction or the maximum aerodynamic load point located at the leading edge of the blade, the difference is that the turbine blade with the rear-loading blade has the maximum aerodynamic load position Obviously to the downstream direction of movement. This form of load distribution allows blades with a rear-loading blade to have good angle-of-attack adaptability and reduce secondary flow losses. In the domestic 200,000 kilowatts turbine unit transformation, the use of the rear part of the leaf to replace the original traditional leaf-type transformation of this measure. Through the cascade experiment, the high-pressure cascade and the prototype cascade with the rear-loading blade are compared to conduct the blowing experiment. The experimental results show that the rear loading leaf can effectively control the secondary flow in the cascade, and reduce the loss of Ruibi. It is feasible to retrofit domestic-made old units with rear-loading leaf-type.