Gas/LP Engines by D27ozeBC

VIEWS: 9 PAGES: 19

									Gas/LP Engines
  •WG/DF752
  •WG/DF1005
      WG/DF752

•Change in Combustion Chamber
•New Piston Profile
•Passes Tier II Emissions
•Increase in Horsepower & Torque
                            WG/DF752
            Major Component Changes
   Engine       WG750       DF750           WG752                DF752
Cylinder Head   Dual Fuel   Dual Fuel   New Gasoline Head   New Dual Fuel Head

   Piston           -           -             New                  New

Head Gasket         -           -             New                  New




     IMPORTANT! Note the new gasoline
     head. Do not convert the WG752 to
     propane use. Use the DF752.
         WG/DF752
New Combustion Chamber Design
                         New Recessed Spark Plug




Current Chamber Design   Larger Chamber in Piston
   New Combustion




DF752      DF750
    New Combustion




DF752      DF750
WG752-E2 PERFORMANCE CURVES
                                                                                        (SAE-J1349)
                                       NET                              ft·lb     N·m




                                                                                        TORQUE
                                       INTERMITTENT                     40         55
                                                                        35        45
                        kW   HP                                         30
                        18        NET                                             35
                             24                                         25
                             23   CONTINUOUS
                             22
                        16
     BRAKE HORSEPOWER




                             20
                        14
                             18

                        12   16

                             14
                        10




                                                                                                 CONSUMPTION
                                                                                                 SPECIFIC FUEL
                                                                                  g/kW·h
                             12                                         lb/HP·h
                                                                                   380
                        8            B.S.F.C.(NET                        0.60
                             10      INTERMITTENT)                       0.55     340
                                                                         0.50     300
                                                                         0.45
                              2000      2400       2800   3200   3600
                                                                  rpm
                                               ENGINE SPEED


                                                                                                                 7
DF752-E2 PERFORMANCE CURVES                                                                  (SAE-J1349)
                                        NET                                 ft·lb     N·m




                                                                                             TORQUE
                                                                            40         55
                                        INTERMITTENT
                                                                            35         45
                        kW    HP                                            30
                        18    24     NET                                    25         35
                             23      CONTINUOUS
                              22
                        16
     BRAKE HORSEPOWER




                             20
                        14                                                                   GASOLINE
                             18
                                                                                               LPG
                        12   16

                             14
                        10




                                                                                                      CONSUMPTION
                                                                                                      SPECIFIC FUEL
                                                                                      g/kW·h
                             12                                             lb/HP·h
                                                                                       380
                        8            B.S.F.C.(NET                            0.60
                             10      INTERMITTENT)                           0.55      340
                                                                             0.50      300
                                                                             0.45
                              2000      2400       2800       3200   3600
                                                                      rpm
                                               ENGINE SPEED


                                                                                                                      8
            DF750 - DF752 Comparison
                                   COMPARISON
    Description           Current ‘E’ Model        New Tier 2 ‘E’ Model

      Engine           WG750       DF750        WG752           DF752
Emission Regulation     Tier 1      Tier 1       Tier 2          Tier 2
Max. Net HP [HP/rpm]   22/3600     21/3600      23/3600        22/3600
 Max. Torque [N.m]      49.0        45.1          51.0           48.01
   Engine outline         -           -         Identical to   Identical to
                                                  WG750          DF750
     Foot Print           -           -         Identical to   Identical to
                                                  WG750          DF 750
WG/DF1005
      WG/DF1005
New Components & Design

 •Distributorless Ignition System
 •Combustion Chamber Design
                 WG/DF1005
          Distributor-less Ignition

                                            One Ignition Coil
                                            per Cylinder


                                            Ignition Trigger



                                            Ignition Module*

*Do not mount on radiator or any source of vibration
                   Ignition System Trigger


Ignition trigger
is a magnetic
sensor with
Signal Rotor.
Signal Rotor is
mounted on
“fuel injection”
gear in place of
transfer pump
eccentric
                       Distributor-less Ignition
Ignition Module uses
wave form from
pickup coil to
determine the
position of the
crankshaft and the
speed of the engine.
Adjustment of the
ignition timing from
standard advance is
determined by the
speed of the engine.
Over-speed
prevention is also
controlled by module
                    DF1005
                 LPG Regulator

                                                     LPG
                                                     Regulator*




*Do not mount on radiator or any source of vibration, make
sure LP fuel line between regulator and carb is correct length.
                   DF1005
           LPG / Gasoline Carburetor
                              Choke


                              LPG inlet
LPG
solenoid

                               Gasoline
                               inlet

Gasoline
solenoid
              WG/DF1005
           Combustion Chamber

This new
combustion
chamber design is
used on the DF1005
as well.
Lower spark plug
improves emissions
WG1005 PERFORMANCE CURVES                                                               (SAE-J1349)
                                                                       55 ft·lb   N·m
                                                 NET
                                                                                  70




                                                                                        TORQUE
                                                 INTERMITTENT          50
                                                                       45         60
                            HP                                         40
                       kW        NET                                              50
                            33                                         35
                       24        CONTINUOUS
                            31                                         30
                       22   30
    BRAKE HORSEPOWER




                       20   27
                       18   24
                       16
                            21
                       14
                            18




                                                                                                 CONSUMPTION
                       12




                                                                                                 SPECIFIC FUEL
                            15                                         lb/HP·h g/kW·h
                       10            B.S.F.C.(NET                       0.7    450
                                                                               400
                                     INTERMITTENT)                      0.6    350
                                                                        0.5    300
                                                                        0.4    250
                             2000   2400      2800    3200      3600
                                                                 rpm
                                           ENGINE SPEED


                                                                                                                 18
DF1005 PERFORMANCE CURVES                                                              (SAE-J1349)
                                                                      55 ft·lb   N·m
                                                NET
                                                                                 70




                                                                                       TORQUE
                                                INTERMITTENT          50
                                                                      45         60
                            HP                                        40
                       kW                                                        50
                            33   NET                                  35
                       24
                                 CONTINUOUS                           30
                       22   30
    BRAKE HORSEPOWER




                       20   27
                       18                                                             GASOLINE
                            24
                                                                                        LPG
                       16
                            21
                       14
                            18




                                                                                                CONSUMPTION
                                                                                                SPECIFIC FUEL
                       12                                                        g/kW·h
                            15                                        lb/HP·h
                       10            B.S.F.C.(NET                      0.7       450
                                                                                 400
                                     INTERMITTENT)                     0.6       350
                                                                       0.5       300
                                                                       0.4       250
                             2000    2400     2800   3200      3600
                                                                rpm
                                        ENGINE SPEED


                                                                                                                19

								
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