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Diameter of Valve Stem Formula

GoMaximum Diameter of Valve Stem Formula

GoMinimum Diameter of Valve Stem Formula

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Diameter of Valve Stem is the diameter of the lowermost part of the valve (valve stem). Check FAQs

d s = 1.5 \cdot d p \cdot (1 - \frac{σ t \cdot t^{2}}{1.4 \cdot P s})

d_s - Diameter of Valve Stem?d_p - Diameter of Port?σ_t - Tensile Stress in Valve Stem?t - Thickness of Valve Disk?P_s - Spring Force on Seated Valve?

Diameter of Valve Stem Example

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Here is how the Diameter of Valve Stem equation looks like with Values.

Here is how the Diameter of Valve Stem equation looks like with Units.

Here is how the Diameter of Valve Stem equation looks like.

14.7279 = 1.5 \cdot 40 \cdot (1 - \frac{2.2 \cdot {5.5}^{2}}{1.4 \cdot 63})

14.7279mm = 1.5 \cdot 40mm \cdot (1 - \frac{2.2N/mm² \cdot {5.5mm}^{2}}{1.4 \cdot 63N})

14.7279 = 1.5 \cdot 40 \cdot (1 - \frac{2.2 \cdot {5.5}^{2}}{1.4 \cdot 63})

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Diameter of Valve Stem Solution

Follow our step by step solution on how to calculate Diameter of Valve Stem?

FIRST Step Consider the formula

d s = 1.5 \cdot d p \cdot (1 - \frac{σ t \cdot t^{2}}{1.4 \cdot P s})

Next Step Substitute values of Variables

∴

d s = 1.5 \cdot 40mm \cdot (1 - \frac{2.2N/mm² \cdot {5.5mm}^{2}}{1.4 \cdot 63N})

Next Step Convert Units

∴

d s = 1.5 \cdot 0.04m \cdot (1 - \frac{2.2E+6Pa \cdot {0.0055m}^{2}}{1.4 \cdot 63N})

Next Step Prepare to Evaluate

∴

d s = 1.5 \cdot 0.04 \cdot (1 - \frac{2.2E+6 \cdot {0.0055}^{2}}{1.4 \cdot 63})

Next Step Evaluate

∴

d s = 0.0147278911564626m

Next Step Convert to Output's Unit

∴

d s = 14.7278911564626mm

LAST Step Rounding Answer

∴

d s = 14.7279mm

Diameter of Valve Stem Formula Elements

Variables

Diameter of Valve Stem

Diameter of Valve Stem is the diameter of the lowermost part of the valve (valve stem).

Symbol: d_s

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Diameter of Valve Stem

Diameter of Port

Diameter of Port is the diameter of the opening of the port of an IC Engine.

Symbol: d_p

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Diameter of Port

Tensile Stress in Valve Stem

Tensile Stress in Valve Stem is the amount of tensile stress induced into the valve stem due to the tensile spring force acting on it.

Symbol: σ_t

Measurement: StressUnit: N/mm²

Note: Value should be greater than 0.

Formulas to find Tensile Stress in Valve Stem

Thickness of Valve Disk

Thickness of Valve Disk is the thickness of the circular valve disk of a valve and is the part of valve head.

Symbol: t

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Thickness of Valve Disk

Spring Force on Seated Valve

Spring Force on Seated Valve is the force exerted by the valve spring onto the valve when it is seated.

Symbol: P_s

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Spring Force on Seated Valve

Other Formulas to find Diameter of Valve Stem

Go Maximum Diameter of Valve Stem

d s = \frac{d p}{8} + 11

Go Minimum Diameter of Valve Stem

d s = \frac{d p}{8} + 6.35

Other formulas in Valve Stem category

Go Diameter of Port given Diameter of Valve Stem

d p = \frac{d s}{1.5 \cdot (1 - \frac{σ t \cdot t^{2}}{1.4 \cdot P s})}

Go Spring Force on Valve when Seated

P s = \frac{\frac{σ t \cdot t^{2}}{1 - \frac{2 \cdot d s}{3 \cdot d p}}}{1.4}

Go Thickness of Valve Disk given Force of Spring on Valve

t = \sqrt{\frac{1.4 \cdot P s \cdot (1 - \frac{2 \cdot d s}{3 \cdot d p})}{σ t}}

Go Tensile Stress in Valve Stem due to Spring Force on Valve

σ t = 1.4 \cdot \frac{P s}{t^{2}} \cdot (1 - \frac{2 \cdot d s}{3 \cdot d p})

How to Evaluate Diameter of Valve Stem?

Diameter of Valve Stem evaluator uses Diameter of Valve Stem = 1.5*Diameter of Port*(1-(Tensile Stress in Valve Stem*Thickness of Valve Disk^2)/(1.4*Spring Force on Seated Valve)) to evaluate the Diameter of Valve Stem, Diameter of valve stem is the diameter of the lowermost part of the valve (valve stem). Diameter of Valve Stem is denoted by d_s symbol.

How to evaluate Diameter of Valve Stem using this online evaluator? To use this online evaluator for Diameter of Valve Stem, enter Diameter of Port (d_p), Tensile Stress in Valve Stem (σ_t), Thickness of Valve Disk (t) & Spring Force on Seated Valve (P_s) and hit the calculate button.

FAQs on Diameter of Valve Stem

What is the formula to find Diameter of Valve Stem?

The formula of Diameter of Valve Stem is expressed as Diameter of Valve Stem = 1.5*Diameter of Port*(1-(Tensile Stress in Valve Stem*Thickness of Valve Disk^2)/(1.4*Spring Force on Seated Valve)). Here is an example- 14727.89 = 1.5*0.04*(1-(2200000*0.0055^2)/(1.4*63)).

How to calculate Diameter of Valve Stem?

With Diameter of Port (d_p), Tensile Stress in Valve Stem (σ_t), Thickness of Valve Disk (t) & Spring Force on Seated Valve (P_s) we can find Diameter of Valve Stem using the formula - Diameter of Valve Stem = 1.5*Diameter of Port*(1-(Tensile Stress in Valve Stem*Thickness of Valve Disk^2)/(1.4*Spring Force on Seated Valve)).

What are the other ways to Calculate Diameter of Valve Stem?

Here are the different ways to Calculate Diameter of Valve Stem-

Diameter of Valve Stem=Diameter of Port/8+11
Diameter of Valve Stem=Diameter of Port/8+6.35

Can the Diameter of Valve Stem be negative?

No, the Diameter of Valve Stem, measured in Length cannot be negative.

Which unit is used to measure Diameter of Valve Stem?

Diameter of Valve Stem is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Diameter of Valve Stem can be measured.

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Diameter of Valve Stem Formula

​GoMaximum Diameter of Valve Stem Formula

​GoMinimum Diameter of Valve Stem Formula

Diameter of Valve Stem Example

Diameter of Valve Stem Solution

Diameter of Valve Stem Formula Elements

Other Formulas to find Diameter of Valve Stem

Other formulas in Valve Stem category

How to Evaluate Diameter of Valve Stem?

FAQs on Diameter of Valve Stem

Variable Name

GoMaximum Diameter of Valve Stem Formula

GoMinimum Diameter of Valve Stem Formula