Fuel Economy Benefits of a New Engine Cooling Pump Based on Sliding Vane Technology with Variable Eccentricity

Cipollone, Roberto; Bianchi, Giuseppe; Battista, Davide Di; Fatigati, Fabio

doi:10.1016/j.egypro.2015.12.032

Cited by 29 publications

(14 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the pump speed n [rpm] set on the engine inverter, the valve position has been changed using the throttle. The following parameters were read: the volumetric flow rate Q [dm 3 /min] of the pump and the increase of the total pressure Δp1 in the system, expressed as:…”

Section: Test Conditionsmentioning

confidence: 99%

See 1 more Smart Citation

Coolant pump for compression-ignition aircraft engine

Gęca¹,

Pietrykowski²,

Barański³

2019

Combustion Engines

View full text Add to dashboard Cite

The article presents an analysis of the design of cooling liquid pumps for a compression-ignition aircraft engine. A 100 kW twin- charged, two-stroke, liquid-cooled engine has 3 cylinders and 6 opposed-pistons. In the first part of the study, the amount of heat needed to be removed by the cooling system was estimated to obtain the required volumetric flow rate. Then, the design of automotive cooling liquid pumps for compression-ignition engines with a Common Rail power supply system and power of about 100 kW was analyzed. The aim of the analysis was to select a suitable pump for applications in the aircraft compression-ignition engine. 5 constructions of different shape, diameter and width of the working rotor were selected. The pressure and volume flow rate were determined for a given rotational speed of the pump on a specially built stand. The operation maps of individual pumps were created to select the most efficient types of pumps.

show abstract

Section: Test Conditionsmentioning

confidence: 99%

“…The authors of the paper [4] analyzed the CP parameters of 1.4 DV4 TED diesel engine from Citroen C3. The maximum temperature increase of the cooling liquid during its flow through the engine block is in the range of 10-15 o C with the flow rate of the cooling liquid ranging 96-192 dm 3 /min. Mean CP efficiency is 20%.…”

Section: Introductionmentioning

confidence: 99%

Coolant pump for compression-ignition aircraft engine

Gęca¹,

Pietrykowski²,

Barański³

2019

Combustion Engines

View full text Add to dashboard Cite

show abstract

“…From this point of view, the most important contribution for a fast warm up time is due to coolant pumps and to their actuation. Positive displacement pump has been proposed in order to have high efficiency at low loads [44] and they can benefit of an additional degree of freedom if they have a variable displacement option, leading to an optimization of the coolant flow rates during a daily trip [45]. Unconventional actuations, decoupled from the engine crankshaft, are under strong attention.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical analyses to improve the design of engine coolant pumps

et al. 2020

Self Cite

View full text Add to dashboard Cite

In this paper, an experimentally based procedure is presented to re-orient the design point of the pump in order to minimize the energy absorbed during the homologation cycle or during any real driving one. During it, in fact, every benefit on the pump’s efficiency is appreciated and produces fuel consumption and CO2 reduction. The procedure takes the advantage from a dynamic test bench for coolant pump, realized and engineered at University of L’Aquila. It has been linked to a model-based methodology, which evaluates, according to a specified vehicle’s mission profile, the speed and load variation of the engine propelling the vehicle, and, therefore, the pump speed. The knowledge of the engine cooling circuit for closed and fully opened thermostat allows the calculation of the flow rates and pressure delivered in each time instant of the drive cycle. The speed-flow rate-pressure delivered pump profile has been reproduced on the bench, and all the relevant quantities have been measured: an exact evaluation of the scatter of the efficiency of the pump, the instantaneous power and the overall energy absorbed have been obtained. Results show how the pump efficiency is far from its Best Efficiency Point. This conclusion invited the Authors to reorient the design pump considering an operating condition, which has a greater occurrence among all the operating points characteristic of a drive cycle. Four pumps have been designed following this approach, showing a sensible reduction of the energy absorbed: this represents a key point also for pump electrification.

show abstract

“…As a result, the electronic cooling pumps for new energy vehicles are being developed by many auto parts manufacturers. 2 As a new product, there is a lot of technological immaturity of the electronic cooling pump which has attracted a lot of researches.…”

Section: Introductionmentioning

confidence: 99%

Effect of volute tongue angle on the performance and flow unsteadiness of an automotive electronic cooling pump

Yuan

Wang

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part A:

View full text Add to dashboard Cite

Automotive electronic cooling pump is the core component of the new energy vehicle cooling system, with the exclusive advantages of high efficiency and low vibration which will bring a broad market prospect. However, the rotor–volute interaction between impeller blades and volute tongue is a severe problem which can result in the performance degradation and unsteady flow fields of pumps. The influences of volute tongue angle on hydraulic performance and fluid stability are investigated in this study. The flow loss inside the pump is visualized by means of the entropy production theory, while the pulsations of pressure and radial force of the rotor are compared by unsteady computational fluid dynamics simulation. The results show that entropy production is an effective tool to visualize the loss distribution which allows accurate assessment of pump performance. Specifically, the pressure pulsation intensity near the volute tongue is larger and the main frequency of the radial force is the blade passing frequency. With the increase of volute tongue angle, the hydraulic efficiency under large flow conditions is improved, with an alleviated rotor–volute interaction intensity, and greatly reduced fluctuations of pressure and radial force. The main significance of this study is that it provides a new perspective to investigate the optimization design for automobile electronic cooling pumps.

show abstract

Fuel Economy Benefits of a New Engine Cooling Pump Based on Sliding Vane Technology with Variable Eccentricity

Cited by 29 publications

References 18 publications

Coolant pump for compression-ignition aircraft engine

Coolant pump for compression-ignition aircraft engine

Experimental and numerical analyses to improve the design of engine coolant pumps

Effect of volute tongue angle on the performance and flow unsteadiness of an automotive electronic cooling pump

Contact Info

Product

Resources

About