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Electrical Parts
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Vendor: Kubota
1PC 12V NGK Lamptimer Time Relay Fits For Kubota 17558-65991 S85NR
Regular price $ 20 -
Vendor: Mitsubishi
12V Time Relay MM431762 NGK Lamptimer for Mitsubishi K3A K3B K3CK3D S85NR Kubota
Regular price $ 22 -
Vendor: Kubota
Time Delay Relay 061700-2111 for Kubota Mini Excavator KX41
Regular price $ 42 -
Vendor: Hyundai
Regulator Relay ME049233 for Mitsubishi 6D15 6D15T Engine Hyundai R95W3 R95W-3 Wheel Excavator
Regular price $ 98 -
Vendor: ISUZU
Time Relay 8970405010 8970405011 for Excavator EX35U EX27U EX50U Isuzu C240 Engine
Regular price $ 15 -
Vendor: JLG
Sealed Relay 3740150 For JLG 24V 100A 1930ES 2030ES 2630ES 2646ES 3246ES
Regular price $ 109 -
Vendor: Mitsubishi
Safety Relay 32666-00311 for Mitsubishi S6R S12R S16R-PTA2-S Engine 24V
Regular price $ 72 -
Vendor: New Holland
Relay YN24S00010P1 for New Holland Excavator E135B E135BSRLC E175B E215B E235BSR E235BSRLC E235BSRNLC E70BSR E80BMSR
Regular price $ 65 -
Vendor: Kobelco
Relay YN24S00010P1 for Kobelco Excavator 200-8 ED150 ED150-2 ED160 ED195-8 SK170M-9 SK170-8 SK170-9 SK210-8
Regular price $ 15 -
Vendor: Cummins
Magnetic Relay Switch 3916301 3916302 120-114751-2 for Cummins Engine
Regular price $ 29 -
Vendor: Caterpillar
Delay Time Relay 138-5190 138-5190X for Caterpillar CAT 307B 307C Excavator
Regular price $ 65 -
Vendor: Komatsu
2PCS 24V Safety Relay 7861-74-5100 7861745100 for Komatau Excavator PC300-8 PC350-8
Regular price $ 29
What are the electrical parts?
The electrical system has three main functions. One is to power the starter motor through the battery, causing the starter motor to run and complete the initial stage of the stroke work through the crankshaft connecting rod structure, and exit the next working system after the engine is started, so this part is sometimes called the engine's The main component of the starting system is the starter motor; the second is to ensure the normal operation of the engine during work, ensuring normal oil supply, normal air intake, and starting protection devices when encountering high temperatures and high pressures. The main components include various sensors and switches. Third, during operation, the charger is driven by the engine to charge the battery and ensure that the battery is fully charged. The main component is the charger.
The electrical system can be classified according to the speed control system of the engine. The electrical system of the machine control is relatively simple, including only the starter, charger, and switch with sensor function. Of course, some assembly plants may have additional wiring in the control box of the unit. , a sensor is installed in the engine for control; in addition to the mechanical starter and charger, the ESC also has an electronic speed regulator and actuator; while the EFI/electronic control is more complex, and its main features are various There are many sensors and they are controlled by a computer board.
1. Battery
The battery is generally not a product that comes with the engine, but is selected, tested and matched by the assembler. The usual voltage is 12V or 24V, and its main function is to power the starter motor, ECM and other electrical equipment. Under normal circumstances, when the engine is running once, the battery is fully charged, because although the battery is discharged in the early stage, it will be fully charged again during the engine running process.
2. Starting motor
The essence of a starter motor is an electric motor. The principle is the magnetic effect of current, which generates a magnetic field through energization and promotes the rotation of the starter. The starter is installed on the side of the timing gear. When starting, the probe of the starter stretches out, contacts the timing gear box gear, and pushes the gear to rotate. After reaching a certain speed, usually 250-300 rpm, the probe It will retract. At this time, the engine can run normally and the work of the starter motor is completed.
An introduction to the main systems of the engine - Youjia
3. Charger
It is also called an alternator, so it is essentially a small generator based on the principle of electromagnetic induction. Driven by the engine, the coil cuts the magnetic induction lines to generate current and supplies it to the battery. The gear of the charger is connected to the crankshaft gear through a belt, and its power is also provided through the crankshaft. The charger is equivalent to a microcosm of a diesel generator set and usually includes excitation windings, etc. We will discuss this later when we introduce the electric ball.
An introduction to the main systems of the engine - Youjia
4. Sensors and switches
Sensors and switches are electrical devices and serve a similar purpose. Sensors and switches feedback information to the computer board or controller through signals, so that the computer board or controller can perform corresponding actions according to the corresponding program. The difference is that the sensor generates pulse signals and transmits information to the control center continuously, while the switch has a threshold, and it is energized only when it exceeds or falls below the threshold and feeds back to the control center. Sensors usually include temperature sensors, pressure sensors, rotational speed sensors, etc., and switches are mainly temperature switches and pressure switches.