1. Outline
It is necessary for a large volume of air to pass through the radiator for it to release the heat. Ordinary driving provides an adequate air flow for cooling, however when the vehicle is Read more EngineElectric Motor-driven Cooling Fan
Automotive Engine
Elements of a Gasoline Engine
All gasoline engines mounted on Toyota automobiles are four-stroke engines. Four-stroke engines operate by continuous and regular repetition of the following sequence:
1. Intake stroke
2. Compression Read more Elements of a Gasoline Engine
Three Elements of Gasoline Engines
1. Good air-fuel mixture for automobiles
(1) Gasoline is vaporized and sufficiently mixed with air In order for gasoline to completely burn, it must be sufficiently vaporized and mixed with air.
What is a GoodEngine Compression?
Necessity of compressing the airfuel mixture
When an uncompressed air-fuel mixture is ignited, it burns slowly due to the low density of fuel and air. However, when compressed air-fuel mixture is ignited, Read more What is a GoodEngine Compression?
Engine Cylinder Head
The cylinder head is located on top of the cylinder block. The bottom of the cylinder head is indented and combines with the piston to form the combustion chamber. Internally, there are a oil hole and Read more Engine Cylinder Head
EnginePlastic Region Bolt
The plastic region bolt is used in such areas as the cylinder head or bearing cap assembly to provide a steady bolt tension. Normally bolts are tightened to the elastic region. In this condition, the bolt Read more EnginePlastic Region Bolt
EngineCylinder Block 1 of 2
The cylinder block acts to maintain the compression pressure with the piston and receive the combustion pressure. Recent cylinder block consists of the aluminum cylinder block and the cylinder liner. However, Read more EngineCylinder Block 1 of 2
EngineCylinder Block 2 of 2
EngineCrankshaft
The crankshaft acts to convert the linear motion of the pistons into revolving motion. In order to be able to receive great force and revolve at high speed, it needs enough strength Read more EngineCylinder Block 2 of 2
Main journal and crank pin size
Differences in the main journal and crank pin circumference occur from unevenness in manufacturing precision. For that reason, there are several standard sizes for the main journal and crank pin. This Read more Main journal and crank pin size
EngineConnecting Rod
The connecting rod takes the force, which the piston receives, and transfers it to the crankshaft. Since it is constantly affected by compressing and pulling force, it needs to be sufficiently strong and Read more EngineConnecting Rod