Joint International Conference on Long-term Experiments ...

Static balance equation of regulator membrane is given by the following relation:
F = F + F ,
(1)
a
ga
b
where:
2
2
π ⋅ Dr
π ⋅ Dr
Fa = Ka ⋅ f; Fga = ⋅ pga
; Fb
= ⋅ pb
;
4
4
and Ka is elastic constant springs; f- spring arrow; D-diameter of the regulator
membrane; Fa-power pressure of spring; Fga –pressure power from manifold; pga –
pressure from the manifold; pb –gasoline pressure in masterly of the injection; Fb –the
gasoline injection power.
π ⋅ D
4
π ⋅ D
4
2
2
r ⋅ pb
= Ka⋅
f +
r ⋅ pga
After the changing, relation (1) become :
4
p b = ⋅ Ka
f pga
;
2 ⋅ +
π ⋅ Dr
or:
p b = K r + pga
;
(2)
where:
Kr – is the constant regulator.
4 ⋅ Ka
⋅ f
= 2
π ⋅ D
;
K
Kr r
r
=
1..
4
THE OPTIMUM CALCULATION OF THE ELECTROMAGNETIC INJECTION
The injector proposed by the author are with electronic command Renix type, with
conic top needle with four holes of pulverization or Mono-Motronic with conic top of
needle with three holes of pulverization.
The volume of gasoline injected in cycle is proportional with the injection pressure
and the duration of injection. [3;6].
The section of the passing pulverization hole is determined by the following relation :
[6]
__
__
d d '
d 1
Aa
Ac
Ac
sa
sin
;
2 2
2 sa
sin ⎟ ⎡ ⎛ ⎞⎤
⎛ β ⎞⎛
− ⎞
= π ⋅ ⎢ + ⎜ − ⎟
⎟⎥
= π ⋅ ⎜ ⎟ ⎜
(3)
⎣ ⎝ ⎠⎦
⎝ ⎠⎝
⋅ β ⎠
where: AI-passing section offered by conic top needle; sa-raising up needle; dv-diameter
of the needle in top zone; β-cone angle tight; dp-sack diameter.
Raising up needle sa is considered to be constant.
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