Noise Reduction and Sound Design for Diesel Engines - An Achievable Development Target for US Passenger Cars?

2003 ◽  
Author(s):  
Anton Wolf ◽  
Udo Gaertner ◽  
Tim Droege
Keyword(s):  
Noise Reduction ◽  
Diesel Engines ◽  
Sound Design ◽  
Passenger Cars

PRACTICAL METHODS OF ACOUSTIC MATERIALS PATTERNING FOR INCREASE OF THEIR EFFECTIVENESS

Akustika ◽  
2021 ◽  
pp. 107-111
Author(s):  
Aleksandr Krasnov ◽  
Igor Deryabin
Keyword(s):  
Noise Reduction ◽  
Laboratory Scale ◽  
Experimental Investigations ◽  
Passenger Cars

This article includes the results of experimental investigations of patterned noise-reducing materials and components, carried out using special-purpose laboratory-scale bench plants (Alpha Cabin, Torre di Pisa, RTC-3, Oberst). Illustrative examples of constructive-technological structurization of the components (gaskets, panels and upholstery) providing noise reduction of passenger cars are given.

scholarly journals Ceramic Engine Components Under Commercial Production

1984 ◽  
Author(s):  
Yoshiteru Hamano ◽  
Masahiro Yamamoto
Keyword(s):  
Diesel Engines ◽  
Mass Production ◽  
Commercial Production ◽  
Cold Climate ◽  
Passenger Cars ◽  
Competitive Price ◽  
High Durability ◽  
Start Up ◽  
Ceramic Components ◽  
Engine Components

In the field of diesel engine components, ceramic glow plugs assisting quick start up of chamber diesel engines had been developed in September, 1981 and ceramic swirl chambers followed in commercialization in April, 1983. These ceramic components are currently under commercial production and are installed on passenger cars on the merket. Silicon nitride (Si3N4) is the material of these components, and a lot of mass-production technique has firmly established in order to achieve competitive price and high durability in comparison with the conventional metal components. Because of its excellent heating characteristics, ceramic glow plugs have eliminated the “waiting time” before the start-up of diesel engines. As the result, drivers can enjoy quick starting of engines as they can do with gasoline fueled vehicles. Ceramic swirl chambers could drastically reduce idling noise of diesel engines and remarkably improved starting performance in the cold climate operation.

The Charging of Diesel Engines for Passenger Cars Using Turbochargers With Adjustable Turbine Guide Vanes

1982 ◽  
Author(s):  
M. Rautenberg ◽  
A. Mobarak ◽  
M. Malobabic
Keyword(s):  
Diesel Engine ◽  
Experimental Work ◽  
Diesel Engines ◽  
Passenger Cars ◽  
Guide Vanes ◽  
Low Speeds

Turbocharged passenger cars have been in use more than three decades. However, the behavior of the engine at low engine speeds is still unsatisfactory. Experimental work has been carried out on turbochargers aiming to improve the behavior of the engine at low speeds. For this purpose a turbine with adjustable guide vanes has been designed and tested. These experiments were done on a turbocharged 31 diesel engine from Daimler-Benz. Three different turbine nozzle blades have been designed and tested without using a waste gate. The results are compared with those of the Garrett-turbocharger T03 which was originally installed with the engine.

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