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Outer Diameter of Piston Pin Formula

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Outer Diameter of Piston Pin is the diameter of the outer surface of a piston pin. Check FAQs

d o = π \cdot {D i}^{2} \cdot \frac{p max}{4 \cdot p b c \cdot l 1}

d_o - Outer Diameter of Piston Pin?D_i - Diameter of Cylinder Bore?p_max - Maximum Gas Pressure Inside Cylinder?p_bc - Bearing Pressure of CrankPin Bush?l₁ - Length of Piston Pin in Connecting Rod?π - Archimedes' constant?

Outer Diameter of Piston Pin Example

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Here is how the Outer Diameter of Piston Pin equation looks like with Values.

Here is how the Outer Diameter of Piston Pin equation looks like with Units.

Here is how the Outer Diameter of Piston Pin equation looks like.

59.2685 = 3.1416 \cdot 180^{2} \cdot \frac{1.4319}{4 \cdot 7.59 \cdot 81}

59.2685mm = 3.1416 \cdot {180mm}^{2} \cdot \frac{1.4319N/mm²}{4 \cdot 7.59N/mm² \cdot 81mm}

59.2685 = 3.1416 \cdot 180^{2} \cdot \frac{1.4319}{4 \cdot 7.59 \cdot 81}

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Outer Diameter of Piston Pin Solution

Follow our step by step solution on how to calculate Outer Diameter of Piston Pin?

FIRST Step Consider the formula

d o = π \cdot {D i}^{2} \cdot \frac{p max}{4 \cdot p b c \cdot l 1}

Next Step Substitute values of Variables

∴

d o = π \cdot {180mm}^{2} \cdot \frac{1.4319N/mm²}{4 \cdot 7.59N/mm² \cdot 81mm}

Next Step Substitute values of Constants

∴

d o = 3.1416 \cdot {180mm}^{2} \cdot \frac{1.4319N/mm²}{4 \cdot 7.59N/mm² \cdot 81mm}

Next Step Convert Units

∴

d o = 3.1416 \cdot {0.18m}^{2} \cdot \frac{1.4E+6Pa}{4 \cdot 7.6E+6Pa \cdot 0.081m}

Next Step Prepare to Evaluate

∴

d o = 3.1416 \cdot {0.18}^{2} \cdot \frac{1.4E+6}{4 \cdot 7.6E+6 \cdot 0.081}

Next Step Evaluate

∴

d o = 0.0592685187818128m

Next Step Convert to Output's Unit

∴

d o = 59.2685187818128mm

LAST Step Rounding Answer

∴

d o = 59.2685mm

Outer Diameter of Piston Pin Formula Elements

Variables

Constants

Outer Diameter of Piston Pin

Outer Diameter of Piston Pin is the diameter of the outer surface of a piston pin.

Symbol: d_o

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Outer Diameter of Piston Pin

Diameter of Cylinder Bore

Diameter of Cylinder Bore is the internal surface diameter of an engine cylinder.

Symbol: D_i

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Diameter of Cylinder Bore

Maximum Gas Pressure Inside Cylinder

Maximum Gas Pressure Inside Cylinder is the maximum amount of pressure that can be generated inside the cylinder.

Symbol: p_max

Measurement: PressureUnit: N/mm²

Note: Value should be greater than 0.

Formulas to find Maximum Gas Pressure Inside Cylinder

Bearing Pressure of CrankPin Bush

Bearing Pressure of CrankPin Bush is the bearing pressure at the crank pin bearing of the big end of the connecting rod.

Symbol: p_bc

Measurement: PressureUnit: N/mm²

Note: Value should be greater than 0.

Formulas to find Bearing Pressure of CrankPin Bush

Length of Piston Pin in Connecting Rod

Length of Piston Pin in Connecting Rod is the length of the part of piston pin inside the bush of small end of the connecting rod.

Symbol: l₁

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Length of Piston Pin in Connecting Rod

Archimedes' constant

Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.

Symbol: π

Value: 3.14159265358979323846264338327950288

Other formulas in Piston Pin category

Go Inner Diameter of Piston Pin

d i = 0.6 \cdot d o

Go Length of Piston Pin used in Connecting Rod

l 1 = 0.45 \cdot D i

Go Maximum Bending Moment on Piston Pin

M b = F P \cdot \frac{D i}{8}

Go Maximum Bending Stress in Piston Pin

σ max = 4 \cdot F P \cdot D i \cdot \frac{d o}{π \cdot ({d o}^{4} - {d i}^{4})}

How to Evaluate Outer Diameter of Piston Pin?

Outer Diameter of Piston Pin evaluator uses Outer Diameter of Piston Pin = pi*Diameter of Cylinder Bore^2*Maximum Gas Pressure Inside Cylinder/(4*Bearing Pressure of CrankPin Bush*Length of Piston Pin in Connecting Rod) to evaluate the Outer Diameter of Piston Pin, Outer Diameter of Piston Pin is the diameter of the outer surface of a piston pin. Outer Diameter of Piston Pin is denoted by d_o symbol.

How to evaluate Outer Diameter of Piston Pin using this online evaluator? To use this online evaluator for Outer Diameter of Piston Pin, enter Diameter of Cylinder Bore (D_i), Maximum Gas Pressure Inside Cylinder (p_max), Bearing Pressure of CrankPin Bush (p_bc) & Length of Piston Pin in Connecting Rod (l₁) and hit the calculate button.

FAQs on Outer Diameter of Piston Pin

What is the formula to find Outer Diameter of Piston Pin?

The formula of Outer Diameter of Piston Pin is expressed as Outer Diameter of Piston Pin = pi*Diameter of Cylinder Bore^2*Maximum Gas Pressure Inside Cylinder/(4*Bearing Pressure of CrankPin Bush*Length of Piston Pin in Connecting Rod). Here is an example- 55500 = pi*0.18^2*1431910.84/(4*7590000*0.081).

How to calculate Outer Diameter of Piston Pin?

With Diameter of Cylinder Bore (D_i), Maximum Gas Pressure Inside Cylinder (p_max), Bearing Pressure of CrankPin Bush (p_bc) & Length of Piston Pin in Connecting Rod (l₁) we can find Outer Diameter of Piston Pin using the formula - Outer Diameter of Piston Pin = pi*Diameter of Cylinder Bore^2*Maximum Gas Pressure Inside Cylinder/(4*Bearing Pressure of CrankPin Bush*Length of Piston Pin in Connecting Rod). This formula also uses Archimedes' constant .

Can the Outer Diameter of Piston Pin be negative?

No, the Outer Diameter of Piston Pin, measured in Length cannot be negative.

Which unit is used to measure Outer Diameter of Piston Pin?

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

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Outer Diameter of Piston Pin Formula

Outer Diameter of Piston Pin Example

Outer Diameter of Piston Pin Solution

Outer Diameter of Piston Pin Formula Elements

Other formulas in Piston Pin category

How to Evaluate Outer Diameter of Piston Pin?

FAQs on Outer Diameter of Piston Pin

Variable Name