Chapter 3 Fuel Injection Equipment
1. Fuel Supply System
4LHA Seri
1-5 G o v e r n o r construction
Diesel engines are used in extremely varied conditions,
with a wide range of loads and rpms. The governor
has the important function of controlling the fuel
injection quantity. It quickly responds to changes in
rpm by adjusting the position of the control rack.
Y P E S - A L fuel injection pump is equipped with the é
speed type governor. T h e governor is available in
types: one has the t o r q u e rise spring (angleich sprini
(Fig. 1), and the o t h e r has the smoke cut sprir
(angleich spring) (Fig. 2 ) .
Fig. 1 Governor with torque rise spring
Governor
spring
Tension lever
Fuel limit bolt
(Stopper)
Speed control
lever
Angleich spring
Shifter
Excess fuel spring
(Start spring)
G o v e r n o r weight
The governor weight is mounted on the end of the fuel
injection pump cam shaft. It rotates around the
governor support pin, driven by the cam shaft, and is
forced outwards by the centrifugal force acting on the
weight.
The thrust force on the cam shaft due to this cen-
trifugal force acts on the lower part of the tension
lever via the sleeve. A n excess fuel spring for starting
is mounted on the bottom of the tension lever.
One end of the governor spring is hooked to the right
upper end of the tension lever, and the other end to
the spring lever on the control lever shaft.
The spring lever and control lever are mounted on the
same shaft, so by turning the control lever towards
full, the governor spring is pulled and the load gradual-
ly rises.
The tension lever can move freely around the governor
shaft on the player bearing. As the speed increases and
the shifter is pushed to the left, the tension lever
rotates clockwise. A n d when the speed falls, the
tension lever rotates counterclockwise.
The governor lever rotates smoothly on the same
governor shaft. The b o t t o m part of this lever is in
contact with the sleeve through the shifter, which is
itself in contact with the bottom of the tension lever
through the excess fuel spring. It therefore moves with
the tension lever according to the rise or fall of the
engine speed.
The top of the governor lever is connected to the fuel
pump control rack through the governor link. The
movement of the lever controls the volume of fuel
injected by the p u m p . A s the speed increases, the lever
rotates clockwise and moves the control rack to reduce
fuel, and when the speed falls the lever rotates counter^
clockwise to cause the control rack t o pass more fuel.
Thus, the engine speed is controlled.
The top of the tension lever comes in contact with the
stopper built into the t o p of the governor case to limit
the maximum fuel injection volume.
3-2-5
Summary of Contents for 4LHA-DTP
Page 79: ...Y00R4782 2 Fig fc GEAR HOUSING REFER TO F i g l REFER TO F i g 2 8 2 9 7 EFER TO Fi g 5 ...
Page 81: ...Y00R4782 FLYWHEEL HOUSING 4LHA STZE P 4LHA DTZE P 4LHA HTZE P 13 1 4 ...
Page 87: ...Y00R4782 LUB OIL S U M P 9 7 7 7 7 o 1 01 21 2 N 4LHA HTE P 4LHA HTZE P OPTIONAL 12 ...
Page 89: ...Y0OR4782 OIL SEAL HOUSING REFER TO Fig 1 ...
Page 101: ...Y00R4782 Fig j 2 RåV Tfc JI K S U C T I O N M A N I F O L D ...
Page 107: ...Y00R4782 Fig CAMSHAFT DRIVING GEAR ...
Page 109: ...Y00R4782 Fig 1 C e 4LHA ST Z E P I O TURBOCHARGER 4LHA ST Z E P REFER TO F i g 1 3 ...
Page 111: ...Y00R4782 r 1 ft t y 4LHA DT Z E P F i g l O TURBOCHARGER 4LHA DT Z E P REFER TO F i g 1 3 ...
Page 113: ...Y00R4782 1 7 fcf 4LHA HT Z E P Fig I I T U R B O C H A R G E R 4LHA HT Z E P ...
Page 115: ...Y00R4782 Fig 18 ftiB M I X I N G E L B O W E X H A U S T B E N D 5 ...
Page 117: ...Y00R4782 Fig 18 1 5 E W K M I X I N G E L B O W E X H A U S T B E N D 5 ...
Page 121: ...Y00R4782 Fig I W AIR COOLER 4 L H A H T E P 4 L H A H T Z E P REFER TO F i g 24 ...
Page 127: ...Y00R4782 F i g t C LUB OIL COOLER REFER TO F i g 1 9 FLYWHEEL SIDE ...
Page 131: ...Y00R4782 Fig 24 LUB OIL SYSTEM REFER TO Fi g 2 4LHA STZE P 4LHA DTZE P REFER TO Fi g 6 ...
Page 135: ...Y00R4782 Fig C O LUB OIL PIPE TURBOCHARGER REFER TO F i g 1 5 1 6 1 7 ...
Page 137: ...Y00R4782 Fig 27 MMM V LUB OIL PIPE COOLER REFER TO F i g 22 a 7 f O U T L O STRAINER OUT ...
Page 139: ...Y00R4782 Q Q m y7 m 4LHA ST DT Z E P Fi g O C S W P U M P 4LHA ST DT Z E P ...
Page 141: ...Y00R4782 OQ ymxy 4LHA HT Z E P Fi g fc 57 C S W P U M P 4LHA HT Z E P ...
Page 143: ...Y00R4782 Fig COOLING FRESH W A T E R P U M P REFER TO F i g 62 ...
Page 145: ...Y00R4782 Fig 31 mo z 4LHA ST DT Z E P C F W COOLER 4LHA ST DT Z E P 5 f fc f ui FLYWHEEL SIDE ...
Page 149: ...Y00R4782 Q Q mMW 4LHA STE DTE P Fi g O O C S W PIPE 4LHA STE DTE P REFER TO F i g 3 1 ...
Page 155: ...Y00R4782 g g nm uy m 4LHA HT Z E P C S W PIPE 4LHA HT Z E P REFER TO F i g 32 11 12 SIED PART ...
Page 157: ...Y00R4782 Fig o e nmiuy 4LHA ST DT Z E P O D C F W PI PE 4LHA ST DT Z E P ...
Page 159: ...Y00R4782 Fig Q 7 JMP W7 I 4LHA HT Z E P O f C F W PIPE 4LHA HT Z E P REFER TO F i g 2 3 ...
Page 161: ...Y00R4782 Fi g Q O C S W STRAINER OPTIONAL c s w PUMP KINGSTON C O C K ...
Page 167: ...Y00R4782 4 1 mmxyy 4LHA ST DT Z E P I FUEL INJECTION P U M P 4LHA ST DT Z E P ...
Page 173: ...Y00R4782 ...
Page 175: ...Y00R4782 ...
Page 177: ...Y00R4782 43 M t GOVERNOR ...
Page 179: ...Y00R4782 Å A JWD f Ktfxr Fig F U E L F E E D P U M P REFER TO Fig 41 ...
Page 187: ...Y00R4782 Fig A O rø W7 4LHA ST DT Z E P H O FUEL PIPE 4LHA ST DT Z E P ...
Page 189: ...Y00R4782 Fig A Q miUy 4LHA ST DT Z E P f O FUEL PI PE 4LHA ST DT Z E P ...
Page 193: ...Y00R4782 Fig C n B7 f 4LHA ST DT Z E P U U FUEL STRAINER 4LHA ST DT Z E P ...
Page 195: ...Y00R4782 Fig K 1 TO7 i 4LHA HT Z E P w I FUEL STRAINER 4LHA HT Z E P REFER TO F i g 12 ...
Page 197: ...Y00R4782 Fig 52 OIL WATER SEPARATER OPTIONAL 19 mv t 9 14 F R O M FUEL TANK ...
Page 203: ...Y00R4782 F i g O O P O W E R STEERING P U M P C F W P U M P ...
Page 205: ...Y00R4782 Fig UU P O W E R S T E E R I N G C O O L E R T A N K 1 6 ...
Page 207: ...Y00R4782 57 ATFA f Fig O I ATF PIPE REFER TO F i g 5 6 FER TO F i g 5 5 ...
Page 211: ...Y00R4782 Fifl W O STARTING MOTOR REFER TO F i g 3 ...
Page 213: ...Y00R4782 GENERATOR REFER TO Fig 2 ...
Page 215: ...Y00R4782 Fig D I GENERATOR OPTIONAL REFER TO F i g 30 REFER TO F i g 60 ...
Page 221: ...Y00R4782 Fl g O O SENSOR MOUNT ...
Page 223: ...Y00R4782 H E A T E R P L U G O P T I O N A L 4 L H A H T E P 4 L H A H T Z E P ...
Page 225: ...Y00R4782 Fig OO I N S T R U M E N T P A N E L B T Y P E O P T I O N A L ...
Page 227: ...Y00R4782 Fig NSTRUMENT PANEL C TYPE OPTIONAL ...
Page 229: ...Y00R4782 66 Fig OO I N S T R U M E N T P A N E L C T Y P E O P T I O N A L ...
Page 231: ...Y00R4782 Fig 67 4 0 INSTRUMENT PANEL D TYPE OPTIONAL ...
Page 233: ...Y00R4782 Fig 67 N S T R U M E N T P A N E L D T Y P E O P T I O N A L ...
Page 235: ...Y00R4782 Fig 6 8 T O O L ...
Page 237: ...Y00R4782 Fig D Ø GASKET SET OPTIONAL 1 A ...
Page 302: ...Example of setup with HSW630A1 Hurth marine gear WATER INLET IS M l o 3 0 WATER INLET 2 3 ...
Page 303: ...Chapter 1 General 5 Dimensions i4LHA Series 4LHA STZE STZP 9 96 XVW 9 06 um 1 18 ...
Page 305: ...Chapter 1 General 5 Dimensions 4LHA Series 4LHA DTZE DTZP 9 96 XVW g oe nm 1 20 ...
Page 307: ...Chapter 1 General 5 Dimensions i4LHA Series 4LHA HTZE HTZP g 96 xvw S06NIW 1 22 ...
Page 317: ...Chapter 1 General 7 Electrical Diagrams m4LHA Series 4LHA STZE 1 30 ...
Page 318: ...Chapter 1 General 7 Electrical Diagrams 4LHA Series 4LHA DTZE 1 32 ...
Page 319: ...Chapter 1 General 7 Electrical Diagrams 4LHA Series 4LHA HTE HTZE Eng stop solenoid 1 33 ...
Page 473: ...Chapter 3 Fuel Injection Equipment 9 Tools 4LHA Serie t 3 2 51 ...
Page 507: ...Chapter 5 Lubrication System 1 Lubrication System 4LHA Serie 1 1 Construction ...
Page 519: ...Chapter 6 Cooling Water System 1 Cooling Water System 4LHA Series Cylinder block ...