Noise Reduction Potential of Single Cylinder DI Diesel Engines

2003 ◽  
Author(s):  
Bruno M. Spessert
Keyword(s):  
Noise Reduction ◽  
Diesel Engines ◽  
Reduction Potential ◽  
Single Cylinder

Radiated Noise Reduction in a Single Cylinder Direct Injection (DI) Naturally Aspirated (NA) Engine

2011 ◽  
Author(s):  
Sudhakara Naidu T ◽  
Chaitanya Krishna Balla ◽  
Chris carlson ◽  
David Hudson
Keyword(s):  
Noise Reduction ◽  
Direct Injection ◽  
Single Cylinder ◽  
Radiated Noise

An Investigation of the Sources of Blowby in Single-Cylinder Supercharged Diesel Engines

1978 ◽  
Vol 192 (1) ◽  
pp. 39-48 ◽  
Author(s):  
B. Bull ◽  
M. A. Voisey
Keyword(s):  
Carbon Dioxide ◽  
Diesel Engines ◽  
Piston Ring ◽  
Carbon Dioxide Concentration ◽  
Operating Conditions ◽  
Exhaust Valve ◽  
Simple Method ◽  
Single Cylinder ◽  
Carbon Dioxide Concentrations ◽  
Wide Range

Measurements of carbon dioxide concentrations in the exhaust and in the crankcase of two different types of single-cylinder, supercharged diesel engines have been used to determine the amount of exhaust gas reaching the crankcase as piston ring blowby and as leakage through the exhaust valve stem-to-guide clearance. Over a wide range of operating conditions in both engines the carbon dioxide concentration was found to be more dependent on engine fuelling rate per hour than on fuel input per stroke. It was established that blowby through the exhaust valve guide was a major contributor to crankcase contamination. A simple method has been devised, requiring only minor modifications to the engine, that permits the blowby through the piston ring pack and the exhaust valve guides to be determined separately in turbocharged production engines.

Sign in / Sign up

Export Citation Format

Share Document