传统的液体静压支承节流器存在严重缺陷，性能不佳，不能消除支承间隙随外加载荷增加而剧减的缺点，严重影响其实际应用。新型节流器节流变量指数b≥3，能够保持节流器进油与油囊排油速度接近一致。此外，当有外加载荷作用于支承时，油囊压力会升高，迫使节流变量产生附加增量，从而弥补了因油囊压力升高而减少供油量与油囊增加的排油量。因此，新型节流器能够保证在有外加载荷作用时支承间隙变化很小或近于不变。新型节流器节流性能优良，结构简单，成本低廉，体积较小，具有实用价值。

The new type restrictor of hydrostatic bearing has many good and useful restrictive performances： ①According to the analysis in this paper, the restrictive parameter index must be preserved b≥3.② When extra load forced on the bearing fluid pocket, the pocket pressure is increased by the additional load at once. At this time, the pocket pressure is applied to the end area of valve also. Therefore, the valve will be changed along axis by the increased fluid pressure. The incremental value of restrictive parameter will be increased at the same time. As a result, the new type restrictor will be supplied with more fluid flow. The bearing clearance may maintain nearly constant. ③There are three new types of restrictors： new type variable clearance slide valve, new type clearance sheat and new type variable diameter capillary. It has advantages, such as simple construction, low cost and smaller volume.