本SAE标准定义了用于汽车行业机床和设备的独立式、非整体式、非增压储液罐、溢流式进口、工业液压动力装置的期望值。这些不包括用于间歇和/或非连续工作循环和压力容器的动力装置，如蓄能器和油上空气系统。制定并实现了目标，以形成共同特征的共识，从而提高动力装置的性能、制造质量和可维护性。这些特征包括:a.识别，b.通用尺寸和结构，c.导体和连接器，d.泵/电机组，以及e.过滤器。

This SAE Standard defines the expectations for free-standing, nonintegral, nonpressurized reservoir, flooded inlet type, industrial hydraulic power units used on machine tools and equipment for the automotive industry.These exclude power units used for intermittent and/or noncontinuous duty cycle and pressurized vessels, such as accumulators and air over oil systems.Objectives were set and accomplished to develop a consensus of common features which enhance the power unit performance, manufacturing quality, and maintainability. Some of those features are: a. identification, b. common sizes and construction, c. conductors and connectors, d. pump/motor groups, and e. filters.