Filter and sort
Electrical Parts
-
Vendor: Perkins
2PCS Oil Pressure Switch 185246290 10000-12753 10000-70764 Fit For Perkins Diesel Engine 403D-07 403D-15 403D-15T 404D-22 403D-17 403C-15 404C-22 404C-22T
Regular price $ 32 -
Vendor: Bobcat
Oil Pressure Switch 6670705 3 Pin Connection for Bobcat Loader 453 463 553 653 753 763 773
Regular price $ 20 -
Vendor: Others
LEFOO LF20 Extended Duty Pressure Switch 10psi±2psi Adjustable High Pressure Switch Oil Pressure Switch Vacuum Pressure Switch For LEFOO
Regular price $ 29 -
Vendor: Kobelco
Oil Pressure Switch 835301471A VH835301471D 83530-E0220 for Kobelco Excavator SK350-8 Hino Engine J08E
Regular price $ 35 -
Vendor: Bobcat
2pcs Oil Pressure Switch 6969775 6652576 for Bobcat 743 643 645 SKID-STEER LOADER
Regular price $ 28 -
Vendor: Yanmar
2pcs Oil Pressure Switch 114250-39450 124160-39450 124160-39451 for Yanmar Engine 3TNE74 3TNV82 4TNV84 4TNV88 4TNV94 4TNV98 2YM15 3YM20
Regular price $ 25 -
Vendor: Cummins
New Negative Ground Oil Pressure Sender 05-70-1857 ESP100-1-8
Regular price $ 35 -
Vendor: Cummins
Oil Pressure Sender 2 Wire 0193-0430-01 for Cummins Onan MDKAA/AB/AD/AE/AF/AL
Regular price $ 22 -
Vendor: Hope Backhoe Parts
Pressure Sender 2 Wire ES2P-100 05-70-1858 For Murphy 05701858 For Cummins Onan
Regular price $ 28 -
Vendor: Bobcat
Hydraulic Charge Pressure Switch 6671062 For Bobcat 443 540 542 543 553 641 642 643 645
Regular price $ 32 -
Vendor: Bobcat
2PCS Hydraulic Temperature Switch 7251584 6632633 For Bobcat
Regular price $ 35 -
Vendor: Komatsu
Relay 24V Battery Switch 08088-30000 For Komatsu PC350-8 PC300-8 PC130-8 D39PX-22 D39EX-22 WA200-6 PC130-8 D31EX-22
Regular price $ 45
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.