Noise-attenuating internal combustion engine air intake system

1996 ◽  
Vol 99 (1) ◽  
pp. 17
Author(s):  
Dennis E. Houle ◽  
Stephen E. Brackett
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Intake System ◽  
Air Intake

Improvement of thermal and mechanical characteristics of flows in the intake system of a combined internal combustion engine

2018 ◽  
pp. 58-62
Author(s):  
Leonid Valeryevich Plotnikov ◽  
◽  
Boris Prokopyevich Zhilkin ◽  
Yuriy Mironovich Brodov ◽  
◽  
...  
Keyword(s):  
Internal Combustion Engine ◽  
Mechanical Characteristics ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Intake System

scholarly journals A design concept of a device for measuring air flow resistance in vehicle filters

2020 ◽  
Author(s):  
Adrian Misztuk
Keyword(s):  
Flow Resistance ◽  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Air Flow ◽  
Engine Performance ◽  
Internal Combustion ◽  
Design Concept ◽  
Compression Ignition Engine ◽  
Intake System ◽  
Air Intake

Internal combustion engines have to be supplied with adequate amounts of fuel and air. The required amount of fuel and air is determined by the engine controller to guarantee that the fuel reaching the cylinder is burned effectively and that the composition of exhaust gas meets standard requirements. The air supplied to an internal combustion engine has to be adequately filtered because impurities reaching the engine can accelerate the wear of engine components. The air intake system features a filtering partition which captures impurities and prevents them from reaching the engine. However, the filtering process decreases the rate at which cylinders are filled with fresh air, which can compromise engine performance. Therefore, effective solutions are needed to ensure that the flow of filtered air does not significantly decrease the volumetric efficiency of cylinders.  This study presents a design concept of a device for measuring pressure in the air intake system in front of and behind the filtering partition. The proposed device can be useful for measuring filter wear. A prototype of the proposed device was built and tested on several air filters. To eliminate throttle valve impacts, the device was tested in a compression ignition engine. The results of the conducted tests demonstrated that the device correctly measured air flow. The conducted measurements also revealed that the presence of impurities in the air filter induced differences in pressure in the air intake system in front of and behind the filtering partition. The maximum air flow resistance in a clogged filter could be even 100% higher than in a brand new filter. W niniejszej pracy przedstawiono koncepcję stanowiska umożliwiającego prowadzenie pomiarów ciśnienia panującego w kanale dolotowym silnika przed i za przegrodą filtracyjną powietrza, które mogą być przydatne przy określaniu stopnia jej zużycia. Dodatkowo zbudowano prototyp urządzenia i w celu weryfikacji poprawności jego działania przeprowadzono za jego pomocą badania przykładowych filtrów. Badania wykonano z użyciem silnika spalinowego o zapłonie samoczynnym. Wyniki pomiarów potwierdzają działanie urządzenia oraz obrazują zależności pomiędzy filtrami o różnym stopniu zużycia. Okazuje się, że maksymalny opór przepływu zużytego wkładu filtracyjnego może być nawet o ok. 100% większy niż w przypadku nowego wkładu filtracyjnego.

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