Characterization of Crankcase Pressure Variation during the Engine Cycle of an Internal Combustion Engine

2017 ◽  
Author(s):  
Katherine Randall ◽  
Cody Bradford ◽  
Jeremy Ross ◽  
Jeremy Church ◽  
Nolan Dickey ◽  
...  
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Pressure Variation ◽  
Engine Cycle

Dynamic analysis of piston secondary motion in an internal combustion engine under non-lubricated and fully flooded lubricated conditions

2011 ◽  
Vol 225 (11) ◽  
pp. 2575-2585 ◽  
Author(s):  
P D McFadden ◽  
S R Turnbull
Keyword(s):  
Internal Combustion Engine ◽  
Dynamic Analysis ◽  
Dynamic Model ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Gas Pressure ◽  
Single Cylinder Engine ◽  
Secondary Motion ◽  
Steady Rotation ◽  
Engine Cycle

A dynamic model is presented for the internal combustion engine in which the primary motion of the pistons is determined by the gas pressure in the cylinders rather than by an assumed steady rotation of the crank, and the secondary motion of the pistons is determined by the interaction of the pistons with the cylinder walls under non-lubricated and fully flooded lubricated conditions. Results are presented for the simulation of a single-cylinder engine and show clearly the variations in the secondary translation and rotation of the piston throughout the engine cycle for the non-lubricated condition, and the significant damping of such secondary motions in the fully flooded lubricated condition.

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