Joint International Conference on Long-term Experiments ...

THE VARIATION OF EFFECTIVE POWER AND SPECIFIC EFFECTIVE
FUEL CONSUME OF 106-20 ENGINE WITH THE REVOLUTION AND THE
TEMPERATURE OF THE ENVIRONMENT SURROUNDINGS
Vasile Blaga 1 , Nicolae Chioreanu 2 , Adriana Cătaş 3
1 University of Oradea, Faculty of Environment Protection,
2 University of Oradea, Faculty of Environment Protection
3 University of Oradea, Faculty of Science, Department of Mathematics,
acatas@uoradea.ro
ABSTRACT
Working system of engine is definite by rotation and load, but besides those, it requires
knowledge about thermal system, that is machine part temperature situation, the
temperature of cooling fluid, admitted air temperature, evacuation gases temperature
height corrections.
Engine load suits effective power Pe delivered by engine to a certain rotation. The
load is regulated through speed pedal, controlling Mono-Motronic mixture quality
system and air quality of other systems. Outside engine action applied of consumer
(motor vehicle or brake trying on trial engine stand) represent engine attempt when
thermal system of the engine doesn’t vary in time, working system is stabilized, contrary
the engine is working in provisional system.
Keywords: gasoline, injection, lambda, effective power, revolution.
THE GENERAL MODEL FUEL INJECTION MODEL
Load remark may be realized through comparison between effective power Pe and
continued effective power Pec developed on the some rotation, named load coefficient
χ= Pe/Pec [2];[3].
Through continued effective power it can be understand maximum value of power,
which can be developed by an engine permanently, at a named rotation, without
modification of engine indexes and without appearance of some wear defections. For
short lapse of time (for example 15 min. for one hour interval) the engine can develop a
superior power, named intermittent superior power Pei. Maximum continuously power
settled by industrial unit engineering is the nominal power Pen, and adequate/suitable
rotation, nominal rotation.
The load according power Pec (χ=1) is named complete load the one according Pei
power absolute load and according idly running Pe=0 (theoretical χ=0) null load.
Between null and complete load (0