When there is an appropriate oil film on the surface of the bearing, it can absorb the heavy load and shock from the rotating parts in the combustion stroke. This oil film prevents seizing and reduces Read more Engine Crankshaft Bearing
Automotive Engine
Big end bore size
The big end bore is machine-manufactured with the connecting rod and bearing cap. Due to unevenness in machine manufacturing precision, differences in big end bore size can occur. For that reason, there Read more Big end bore size
Engine Bearing Selection
The oil clearance for the crankshaft bearing and the connecting rod bearing is determined by the engine model. Each bearing should be selected to obtain the proper oil clearance with regard to the cylinder Read more Engine Bearing Selection
What is EnginePiston?
1. Description
The piston consists of the lowest part of the combustion chamber. In order for the pis-ton to move, there needs to be clearance between the piston and the cylinder wall. The construction Read more What is EnginePiston?
Conditions to Operate Diesel Engine
Compression and the fuel system are the most important factors for the efficient operation of the diesel engine. The preheating system heats the compression air necessary for cold engine starting.
Elements of Diesel Engine
The diesel engine uses diesel fuel. A four-stroke diesel engine operates with the same cycle of four strokes as the gasoline engineIntake, compression, combustion and exhaust. One merit of the diesel engine Read more Elements of Diesel Engine
Operation Principle of the Transistorized Type with ESA
1. The engine ECU receives the signals from various sensors, calculates the optimal ignition timing, and sends an ignition signal to the igniter. (The engine ECU controls the timing advance.)
2. The Read more Operation Principle of the Transistorized Type with ESA
TDI (TOYOTA Direct Ignition System)
In the TDI system, the conventional distributor is no longer used as in the ignition system. Instead, it provides an ignition coil with an independent integrated igniter for each of the cylinders. Because Read more TDI (TOYOTA Direct Ignition System)
Automotive Ignition Coil
The ignition coil generates a high voltage that is sufficient for arcing sparks between the electrodes of a spark plug. The primary and secondary coils are wound around the core. The secondary coil is Read more Automotive Ignition Coil
Combustion Cycle of Diesel Engine
1. Combustibility of diesel fuel
Increasing the fuel temperature, causes the fuel to ignite spontaneously, even it is not exposed to a flame. The minimum temperature that this occurs is called the autogenous Read more Combustion Cycle of Diesel Engine