Delivery behaviour and energy efficiency of dosing pumps in vehicles
Research Task/Objectives
This dosing pump delivers precisely fuel from the tank to the independent vehicle heater
Especially in the automotive industry, an increase of energy efficiency and a high dosing accuracy of fluid power components are major competition factors. The pump, which is investigated in this project in cooperation with Thomas Magnete GmbH, is used in vehicles for delivering the fuel to an independent vehicle heater. The goals of the works is an analysis of the dosing pump to identify potentials for improvement of
- dosing accuracy,
- noise occurrence and
- energy efficiency
The investigated object is a single piston pump, which is driven by an electromagnetic
actuator.
Approach
Experimental and numerical investigations of transient flow behavior
The project’s focus is the computational fluid dynamics (CFD) using a cavitation model. A simulation of the fluid structure interaction (FSI) offers an investigation of the interaction of the flow and structure, leads to a deeper understanding of the flow processes in the pump and is the basis of improvements.
For the analysis of the energy efficiency, a non-linear system model based on lumped
parameters, which represent all physical sub systems of the pump, is suitable. The subdivision offers a detailed calculation of the electrical energy demand and the investigation of major electrical, magnetic, mechanical and hydraulic energy storages and consumers.
The presented research activities are part of the project with Ref. No. KF2452603RU3, which was funded by the German Federal Ministry for Economic Affairs and Energy within the ZIM programme.
The project was realized in cooperation with the company "Thomas Magnete GmbH".