The paper presents the evolution of the lubrication pumps for internal combustion engines in
the last two decades. After the description of the traditional fixed displacement gear units, the …

The effect of oil contamination and oil degradation on friction and wear of engine oil pump
are addressed in this paper. It provides a summary of an experimental study on the effects of …

This paper presents a model formulation for balanced twin lip vane pumps and an
experimental activity to validate the model. The simulation model begins with a geometrical …

The simulation of lubricating pumps for internal combustion engines has always represented
a challenge due to the high aeration level of the working fluid. In fact, the delivery pressure …

The rotational hydraulic damper has advantages in the design and control of rotational
machines. This paper presents a novel hydraulic rotational damper with the characteristic of …

This article presents the results of hydraulic tests performed for a prototype gear micropump
of a new design. The development of modern hydraulic systems is following two directions …

The internal force of a variable displacement vane pump has been studied in detail with ten
Computational Fluid Dynamics (CFD) cases with different pump speed and eccentricity. The …

Variable displacement hydraulic machines offer a very promising alternative and energy
saving solution for many applications in mobile machines, robots and other applications. In …

Variable-displacement vane-type oil pumps represent one of the most innovative pump
types for industrial applications, especially for engine lubrication systems. The aim of this …

Variable displacement vane pumps are becoming more popular for engine oil circuits due to
their fuel savings over traditional fixed displacement pumps. As a result, engineers need to …