据英刊《液压与气动工程》1983年6月号介绍:美国斯巴利·威格士公司生产出一种采用多种工作介质的“B”系列直轴式轴向柱塞泵和马达,具有定量和变量两种型式。该系列液压泵和马达目前已正式应用于机床、压力机械等工业领域内。“B”系列液压泵结沟简单,采用多种液体作为工作介质,其中主要包括高水基液压油(NFA)。在额定转速和额定压力下(1200～3600转/分;70～210巴,其转速和压力取决 According to the British magazine “Hydraulic and Pneumatic Engineering” in June 1983 Introduction: US Sparrow Vickers company to produce a variety of working medium using a “B” series of direct axis axial piston pump and motor, With quantitative and variable two types. The series of hydraulic pumps and motors are now officially used in machine tools, pressure machinery and other industrial areas. The “B” series pumps are simple to knot, using a variety of fluids as working media, primarily including high water-based hydraulic fluids (NFA). Rated speed and rated pressure (1200 ~ 3600 rev / min; 70 ~ 210 bar, depending on the speed and pressure