What is the cylinder pressure of a two stroke, and about 10 for a four stroke, so you have to be pro

The two-stroke can also be up to 11 (the picture shows the cylinder pressure of the two-stroke outboard after the modification, which can run normally), the low one is also normal at about 7 (the power has room to improve), and the lower one may not be able to start or it means that the cylinder or the mechanical structure of the cylinder gasket or piston or cylinder liner has been seriously damaged.

Yamaha 2-stroke 2-horse engine modified rear cylinder pressure.

The rotational speed during cylinder pressure measurement, whether there is a slight leakage in the cylinder gasket, the viscosity of the residual lubricating oil in the cylinder, and the cylinder temperature all have a great influence on the cylinder pressure measurement. Therefore, the highest value measured many times in different environments is the reference cylinder pressure.

In addition, if the general two-stroke engine is not very good in the air intake or oil filtration, it is a very common phenomenon to pull the cylinder, compared with the four-stroke engine after the cylinder will seriously burn the engine oil and affect the use, the two-stroke engine is not a very serious problem, and the appropriate increase in the lubrication ratio can be used normally without worrying too much.

Two-stroke: First stroke: The piston goes from top dead center to bottom dead center. Complete two actions 1Spark plug.

Ignition, work done – exhaust 2Close the intake air and press the air mixture from the lower part of the piston like a crankcase, from the top of the piston to the cylinder The second stroke: the piston from the bottom dead center to the top dead center.

Complete two actions Turn off all intake and exhaust air and compress the mixture. Every two.

A single cylinder means that the engine has only one cylinder, and a double cylinder is two cylinders, and the double cylinder generally has two forms: parallel twin cylinder and V-twin cylinder.

Every time the piston goes up or down on the cylinder block, it is called a stroke, and the four-stroke is that the piston is on and down the cylinder twice (a total of four strokes, and the engine rotates twice) to complete a working cycle, so it is called a four-stroke engine. Corresponding to the two-stroke, the piston up and down completes a work cycle for each rotation of the engine, and this kind of engine is rarely used on motorcycles nowadays.

The output calculation of the gas-hydraulic booster cylinder can refer to the output calculation of the booster cylinder, and if you are not sure, you can ask the technology for help.

Generally, the following formula is used to calculate the pressure of the gas-hydraulic booster cylinder:

Theoretical output: a= a: cross-sectional area of pneumatic cylinder d: cylinder bore f=a*p f: theoretical force kg p: operating pressure kg cmn=f* n: newton.

In the case of a single-action pneumatic cylinder, the calculation method is:

The actual forward force f=a*p-(r1 r2).

The formula for calculating the output of the booster cylinder is f=p*a, that is, output = pressure * force area booster cylinder output = pressure * booster ratio * cylinder piston area (the oil cylinder is the following preload stroke section), booster ratio = booster cylinder piston area Booster rod.

Just take the data and apply the formula, the booster cylinder generally has a friction coefficient of 5% down, so the actual output is about 5% smaller than the theoretical output.

The distance of an engine's piston from one limit position to another is called a stroke. Also known as strokes, there are 2-stroke and 4-stroke strokes;

2-stroke means that the crankshaft can complete a working cycle with one revolution, that is, to complete the suction (2-stroke is called sweeping) - compression - work - exhaust. This is a characteristic feature of 2-stroke engines.

The characteristic of the 4-stroke engine is that the crankshaft rotates twice to complete a working cycle, that is, suction - compression - work - exhaust (junior high school physics is called suction stroke - compression stroke - power stroke - exhaust stroke).

Answer: The stroke with the lowest cylinder pressure is the suction stroke.

After the exhaust stroke of the internal combustion engine enters the suction stroke, the negative pressure is formed inside the pure mold of the cylinder due to the increase in volume, so that the outside air enters the cylinder under the action of atmospheric pressure.

Hello, the speed calculation of the booster cylinder is extremely complicated, involving the bore, output, booster stroke and total stroke of the booster cylinder, generally speaking, the greater the output, the slower the speed!

If you don't know how to calculate, you can find Sentuo supercharger cylinder manufacturers to calculate for you!