Long 460 - ENGINE SYSTEMS; Lubricating and Cooling Systems; Fuel Injection Pump

LUBRICATING SYSTEM
Oil pressure at 100° G
- at
maximum r.pm . .... ... .................... .. ...... .. ...... .42.7 to 57 p.s.i (3 .. . .4 kg/sq .cm)
- at
minimum r.p.m . ............. .. .. .. .. .......... ... .......... 9.96 p.s. i. (0.7 kg/ cq.cm)
- Oil
filt er with pap er cartridge
COOLING SYSTEM
(with forced water circulation)
Fan is mounted on water pump shaft.
FUEL INJECTION PUMP
- rotar y, type GAV OPA 3233330-49/ 800/ 3/ 2550
Mec
hanic al r egula tor and automatic spill po int variator.
The
pump element ensures fuel delivery un der high pressure . It c onsists of
two opposite plungers in a rotor turning in hy draulic head. Plungers displace-
ment takes place under the influence of cam ring which the plungers come into
c ontact with by means of rollers . Centr if uga l mechanical r egulator belon gs also
to the pump asse mbl y. It accura tely adjusts the fuel delivered by injection pump
acco rding to engine loading .
Automatic spill point variator ensures accurate spi ll com men ceme nt. This
device belongs to the injection pump assembl y.
Transfer pump included into fuel circuit between fuel filter and m eter ing
valve
consists of a two blade rotor . It is in stalled on main rotor shaft, runnin g
in an
ecc e ntric bushing which is fitted in side the injection pump cover .
Spill
point :
-
fixed advance
................... ......... 13° ± 1 bef ore TDC
- automatic advance ..... .. ...... ....... .. ..... .. 15° before TDC
- injector .... .. ... .. ........ .... .. .. . .. ........ type KBL 70 S1 R
- nozzle
...... .. ... ...................... .. ........... .. .. type RO-OLLA 145 S 448
- in
ject ion pressure ... ....... ... .. . ... ... ... ..... .. 3200 to 3342 p. s. i. (230± 5 kg / sq cm)
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