Maximum Suction Pressure on Exhaust Valve Calculator

✖Spring Force on Rocker Arm Valve is the force exerted by a compressed or stretched spring upon any object that is attached to it.ⓘ Spring Force on Rocker Arm Valve [P_sr]			+10% -10%
✖Diameter of Valve Head is the diameter of the top part of valve of an IC engine, valve intakes and exhausts gases to and from an engine.ⓘ Diameter of Valve Head [d_v]			+10% -10%

✖Maximum Suction Pressure is the amount of pressure generated by the gases during its flow from an obstruction.ⓘ Maximum Suction Pressure on Exhaust Valve [P_smax]

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Maximum Suction Pressure on Exhaust Valve Solution

STEP 0: Pre-Calculation Summary

Formula Used

Maximum Suction Pressure = (4*Spring Force on Rocker Arm Valve)/(pi*Diameter of Valve Head^2)
P_smax = (4*P_sr)/(pi*d_v^2)
This formula uses 1 Constants, 3 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Variables Used

Maximum Suction Pressure - (Measured in Pascal) - Maximum Suction Pressure is the amount of pressure generated by the gases during its flow from an obstruction.
Spring Force on Rocker Arm Valve - (Measured in Newton) - Spring Force on Rocker Arm Valve is the force exerted by a compressed or stretched spring upon any object that is attached to it.
Diameter of Valve Head - (Measured in Meter) - Diameter of Valve Head is the diameter of the top part of valve of an IC engine, valve intakes and exhausts gases to and from an engine.

STEP 1: Convert Input(s) to Base Unit

Spring Force on Rocker Arm Valve: 98.5 Newton --> 98.5 Newton No Conversion Required
Diameter of Valve Head: 50 Millimeter --> 0.05 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

P_smax = (4*P_sr)/(pi*d_v^2) --> (4*98.5)/(pi*0.05^2)

Evaluating ... ...

P_smax = 50165.6380625654

STEP 3: Convert Result to Output's Unit

50165.6380625654 Pascal -->0.0501656380625654 Newton per Square Millimeter (Check conversion here)

FINAL ANSWER

0.0501656380625654 ≈ 0.050166 Newton per Square Millimeter <-- Maximum Suction Pressure

(Calculation completed in 00.004 seconds)

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< Force on Rocker Arm of Valves Calculators

Back Pressure when Exhaust Valve Opens

LaTeX Go Back Pressure on Engine Valve = (4*Gas Load on Exhaust Valve)/(pi*Diameter of Valve Head^2)

Initial Spring Force on Exhaust Valve

LaTeX Go Spring Force on Rocker Arm Valve = (pi*Maximum Suction Pressure*Diameter of Valve Head^2)/4

Gas Load on Exhaust Valve when it Opens

LaTeX Go Gas Load on Exhaust Valve = (pi*Back Pressure on Engine Valve*Diameter of Valve Head^2)/4

Downward Inertia Force on Exhaust Valve as it Moves Upwards

LaTeX Go Inertia Force on Valve = Mass of Valve*Acceleration of Valve

Maximum Suction Pressure on Exhaust Valve Formula

LaTeX Go

Maximum Suction Pressure = (4*Spring Force on Rocker Arm Valve)/(pi*Diameter of Valve Head^2)
P_smax = (4*P_sr)/(pi*d_v^2)

Engine Valve Materials

The inlet valve is subjected to comparatively less temperature than the exhaust valve. Therefore, inlet valves are made of nickel-chromium steel. The exhaust valves are made of heat-resistant silicon–chromium steel. For heavy-duty engines, valves are made of chromium-vanadium steel. The valves are heat treated and surface hardness for inlet and exhaust valves is in the range of 250 to 300 HB.

How to Calculate Maximum Suction Pressure on Exhaust Valve?

Maximum Suction Pressure on Exhaust Valve calculator uses Maximum Suction Pressure = (4*Spring Force on Rocker Arm Valve)/(pi*Diameter of Valve Head^2) to calculate the Maximum Suction Pressure, The Maximum suction pressure on exhaust valve is the amount of pressure generated by the combustion gases when the exhaust valve is opened, this pressure tries to close the valve. Maximum Suction Pressure is denoted by P_smax symbol.

How to calculate Maximum Suction Pressure on Exhaust Valve using this online calculator? To use this online calculator for Maximum Suction Pressure on Exhaust Valve, enter Spring Force on Rocker Arm Valve (P_sr) & Diameter of Valve Head (d_v) and hit the calculate button. Here is how the Maximum Suction Pressure on Exhaust Valve calculation can be explained with given input values -> 5E-8 = (4*98.5)/(pi*0.05^2).

FAQ

What is Maximum Suction Pressure on Exhaust Valve?

The Maximum suction pressure on exhaust valve is the amount of pressure generated by the combustion gases when the exhaust valve is opened, this pressure tries to close the valve and is represented as P_smax = (4*P_sr)/(pi*d_v^2) or Maximum Suction Pressure = (4*Spring Force on Rocker Arm Valve)/(pi*Diameter of Valve Head^2). Spring Force on Rocker Arm Valve is the force exerted by a compressed or stretched spring upon any object that is attached to it & Diameter of Valve Head is the diameter of the top part of valve of an IC engine, valve intakes and exhausts gases to and from an engine.

How to calculate Maximum Suction Pressure on Exhaust Valve?

The Maximum suction pressure on exhaust valve is the amount of pressure generated by the combustion gases when the exhaust valve is opened, this pressure tries to close the valve is calculated using Maximum Suction Pressure = (4*Spring Force on Rocker Arm Valve)/(pi*Diameter of Valve Head^2). To calculate Maximum Suction Pressure on Exhaust Valve, you need Spring Force on Rocker Arm Valve (P_sr) & Diameter of Valve Head (d_v). With our tool, you need to enter the respective value for Spring Force on Rocker Arm Valve & Diameter of Valve Head and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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