Abstract: Fluid compressibility has a major influence on the efficiency of switchmode hydraulic circuits due to the release of energy stored in fluid compression during each switching cycle and the increased flow rate through the ...

Abstract: In this paper, the author presents experimental work with a generic switchmode hydraulic circuit that aims to validate a previously presented computational model, with primary focus on the energy loss due to fluid ...

Abstract: Switchmode hydraulic circuits are a theoretically efficient, compact, fast responding, and inexpensive control option. Despite the many potential benefits of switchmode hydraulic circuits, the control method suffers from ...

Abstract: The bulk modulus of hydraulic fluid is dependent on the quantity of entrained gas in the fluid. In this paper, an effective fluid bulk modulus model that captures dynamic gas absorption during pressure transients is derived ...

Abstract: Variable displacement pumps are a key component to a variety of mobile and industrial hydraulic systems, yet the efficiency of existing pump architectures is poor at low displacement. As a solution to this issue, a new ...

Abstract: Reed valves are a type of check valve commonly found in a wide range of applications including air compressors, internal combustion engines, musical instruments, and even the human heart. While reed valves have been studied ...

Abstract: Switched inertance hydraulic systems (SIHS) use inductive, capacitive, and switching elements to boost or “buck” (reduce) a pressure from a source to a load in an ideally lossless manner. Real SIHS circuits suffer a variety ...

Abstract: A variable displacement hydraulic pump/motor with high efficiency at all operating conditions, including low displacement, is beneficial to multiple applications. Two major energy loss terms in conventional pumps are the ...

Abstract: Switch-mode hydraulic control is a compact and theoretically efficient alternative to throttling valve control or variable displacement pump control. However, a significant source of energy loss in switch-mode circuits is ...

Abstract: The optimal operation of hydraulic systems heavily relies on the performance of their pumps and motors. However, these machines often encounter a phenomenon known as flow ripple that causes periodic fluctuations in the ...