Variable-length Air Intake Module for Turbocharged Engines

Stehlig, Jürgen; Taylor, James; Dingelstadt, Rene; Gurney, David

doi:10.1365/s38313-012-0130-9

Cited by 6 publications

(1 citation statement)

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“…This is usually done for a naturally aspirated gasoline engine at higher engine speeds, by changing the length of the air intake manifold runners [1][2]. Such a solution for low engine speeds would imply very long runners which cannot be placed in a modern engine compartment [15]. The following study proposes another way to get the benefit of wave action without increasing the packaging volume of the air intake manifold.…”

Section: Introductionmentioning

confidence: 99%

A model based system approach to innovative smart intake products: CO2 savings and specific performance

Migaud¹,

Bühl²,

Raimbault³

et al. 2015

Proceedings

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On modern combustion engines, air induction systems are evermore evolving into more complicated elements with an objective to find the best trade-off between fuel consumption, pollutant emissions and engine performance. This pursuit has led to the emergence of the downsized turbocharged engine. For such an engine, it's necessary to reinforce the low end torque. This is because, at low operating speeds and loads, the lack of enthalpy at the exhaust side causes a poor behavior of the turbocharger which leads to a poor boost pressure and consequently a deficit of engine performance. The proposed idea in this case would be to benefit from an optimized 'smart' air intake system to solve this issue while assuring other interesting functions as well. First, cylinder filling can be enhanced by assuring acoustic resonance conditions at the intake. The result is an increase of air flow leading to a better torque response and vehicle responsiveness. Pressure waves induced boosting can also help to reduce the thermal stress on the turbocharger as well as the size of the charge air cooler. Secondly, pressure waves can help to save energy by 'de-throttling' at part load operation on an SI engine. This has the effect of reducing the pumping loop and thus enhancing specific fuel consumption. Mechatronic integration into smart systems at the intake is necessary to achieve such goals. The Active Charge Air Duct (ACAD) and the active air intake manifold presented in this paper are innovative plastic products that aim to reduce fuel consumption. This is achieved through geometries with a high flexibility of thermoplastic processes.

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Section: Introductionmentioning

confidence: 99%

A model based system approach to innovative smart intake products: CO2 savings and specific performance

Migaud¹,

Bühl²,

Raimbault³

et al. 2015

Proceedings

View full text Add to dashboard Cite

show abstract

Boundary Conditions for Numerical Calculation of Gas Exchange in Piston Engines

Grishin

Zenkin

Khmelev

2017

J Eng Phys Thermophy

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Application of non-stationary gas dynamic functions for mathematical modeling of gas dynamic processes

Grishin

Бакулин

2019

J. Phys.: Conf. Ser.

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At numerical calculations of non stationary flow in extended channels with use of basic provisions of disintegration of discontinuities method noticeable acceleration of calculations gives application of specially developed non-stationary gas dynamic functions from Mach number. At the same time the greatest advantages of these functions’ application is shown during recording of boundary conditions. Here they are applied in a combination with the known functions of a steady flow as at disintegration of discontinuities, the idea of quasi-steady flow between the waves which passed and reflected from a boundary condition is used. By means of the program complex developed on the basis of non-stationary and stationary functions a number of practical tasks, in particular, of the organization of dynamic pressurization of the piston engine was solved.

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Variable-length Air Intake Module for Turbocharged Engines

Cited by 6 publications

References 0 publications

A model based system approach to innovative smart intake products: CO2 savings and specific performance

A model based system approach to innovative smart intake products: CO2 savings and specific performance

Boundary Conditions for Numerical Calculation of Gas Exchange in Piston Engines

Application of non-stationary gas dynamic functions for mathematical modeling of gas dynamic processes

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