S3L S3L2 Second Hand Starter Motor For Excavator E303 12V mm409413
M008t70471
Specification
| Part Name: Starter motor | Engine type: Diesel |
| Voltage: 12V | Cylinders Number: 3 |
| Application: Excavator engine | Test staus: Normal |
| Type: Direct Injection | Industrial Engine: S3L |
Description
Types of Starter Motor
Below are the five types of starter and their difference:
Direct Drive Starter Motor DD
Direct drive the most common and older types of starter motor
available out there. it comes with different applications and
construction design but it’s solenoid operated unit. Well, its
working remains plain like other types.
The solenoid is energized by the car battery when the ignition
switch or key is pressed. This pushes the plunger to shift the
lever that directs the pinion gear. The pinion gear which then
meshes with the engine flywheel. So, as the starter motor spin, the
flywheel spin along which then begin the engine combustion to run
on its own.
Planetary Gear PLGR
The existence of these types of starter motor has vastly replaced
the direct-drive types. It is a permanent magnet that transmits
power between the pinion shaft and the armature. The armature spin
with more speed and torque.
The essence of planetary gear is to reduce gear which further
reduces the requirement of high current. There is a sun gear
located at the end of the armature and three plenary carrier gears
inside the ring gear held stationery.
Permanent Magnet Gear Reduction PMGR
The permanent magnet gear reduction is designed to offer less
weight, easy construction and less heat generation. It features
four to six magnet field assemblies rather than field coil
starters. It has three terminals on the 12V solenoid, and also
heavy-duty making to require less current. Because there are no
field coils, the commutator and brushes transfer current directly
to the armature.
Permanent Magnet Direct Drive PMDD
The PMDD types of starter motors are similar to the direct drive in
several ways. Their difference is that the field coil is replaced
with permanent magnets in the permanent magnet direct drive type.
