Abstract: This research is aimed at generating an efficiency map for a linear hydraulicactuator that is controlled using an opencentered 4way valve. Using the basic configuration of a double rod, doubleacting linear actuator, equations ...

Abstract: Efficiency maps have long been used by engineers to understand the topographical behavior of their machinery. Most commonly, efficiency maps have been generated for internal combustion engines, where the torque–speed ...

Abstract: This paper has been written to develop closed-form equations for describing the theoretical displacement of a check-valve type, digital displacement pump. In theory, the digital displacement pump is used to alter the ...

Abstract: Aortic compliance has been well established as an independent predictor of cardiovascular morbidity and mortality. The current “gold standard” for assessing aortic compliance is to use the carotid-femoral pulse-wave velocity ...

Abstract: The objectives of this research are to explore the inertial-torque characteristics of an inline, internal combustion engine with connecting-rod joints that are evenly spaced about the centerline of the crankshaft, and to ...

Abstract: This research shows that an existing rearwheel drive vehicle may be easily retrofitted with a continuously variabletransmission for the purposes of reducing the overall fuel consumption of the automobile. The retrofitability ...

Abstract: In this paper, an efficiency map is created for a double-acting, single-rod hydraulic-actuator using a critically centered four-way spool valve and a load-sensing pump. The purpose of this research is to provide an ...

Abstract: In this technical brief, the authors compare the torque capacity of a magnetorheological (MR) fluid brake with a conventional frictional disk brake. In the development of the torque models for both brakes, a mathematical ...

Abstract: Pressure-compensated pumps are routinely used for supplying fluid power for hydraulic control systems. These pumps traditionally exhibit significant overshoot and oscillation before reaching a steady-state pressure condition, ...

Abstract: Using a unique inlet metering pump with fixed displacement and speed, this work introduces a new way to control a linear hydraulic actuator velocity. The inlet metering system consists of an inlet metering valve that adjusts ...