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Free Length of Engine Valve Spring Formula

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Free Length of Valve Spring is defined as the axial length of an unloaded helical compression spring. In In this case, no external force acts on the spring. Check FAQs

L f = N t \cdot d w + 1.15 \cdot x

L_f - Free Length of Valve Spring?N_t - Total Coils in Valve Spring?d_w - Wire Diameter of Valve Spring?x - Maximum Compression in Valve Spring?

Free Length of Engine Valve Spring Example

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With units

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Here is how the Free Length of Engine Valve Spring equation looks like with Values.

Here is how the Free Length of Engine Valve Spring equation looks like with Units.

Here is how the Free Length of Engine Valve Spring equation looks like.

122.52 = 15 \cdot 5.5 + 1.15 \cdot 34.8

122.52mm = 15 \cdot 5.5mm + 1.15 \cdot 34.8mm

122.52 = 15 \cdot 5.5 + 1.15 \cdot 34.8

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Free Length of Engine Valve Spring Solution

Follow our step by step solution on how to calculate Free Length of Engine Valve Spring?

FIRST Step Consider the formula

L f = N t \cdot d w + 1.15 \cdot x

Next Step Substitute values of Variables

∴

L f = 15 \cdot 5.5mm + 1.15 \cdot 34.8mm

Next Step Convert Units

∴

L f = 15 \cdot 0.0055m + 1.15 \cdot 0.0348m

Next Step Prepare to Evaluate

∴

L f = 15 \cdot 0.0055 + 1.15 \cdot 0.0348

Next Step Evaluate

∴

L f = 0.12252m

LAST Step Convert to Output's Unit

∴

L f = 122.52mm

Free Length of Engine Valve Spring Formula Elements

Variables

Free Length of Valve Spring

Free Length of Valve Spring is defined as the axial length of an unloaded helical compression spring. In In this case, no external force acts on the spring.

Symbol: L_f

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Free Length of Valve Spring

Total Coils in Valve Spring

Total Coils in Valve Spring is the total number of coils or turns of spring including the coils at the ends of the spring.

Symbol: N_t

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Total Coils in Valve Spring

Wire Diameter of Valve Spring

Wire Diameter of Valve Spring is the diameter of the wire of a valve spring, which constitutes the coils of the spring.

Symbol: d_w

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Wire Diameter of Valve Spring

Maximum Compression in Valve Spring

Maximum Compression in Valve Spring is the maximum amount of axial deflection in the valve spring.

Symbol: x

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Maximum Compression in Valve Spring

Other formulas in Valve Spring category

Go Diameter of Wire of Engine Valve Spring given Mean Coil Diameter

d w = \frac{D}{8}

Go Diameter of Wire of Engine Valve Spring given Torsional Shear Stress in Wire

d w = \sqrt{\frac{8 \cdot K \cdot P \cdot C}{π \cdot f s}}

Go Diameter of Wire of Engine Valve Spring

d w = \sqrt{\frac{8 \cdot K \cdot ((P i + k \cdot h max) \cdot C)}{π \cdot f s}}

Go Spring Index of Engine Valve Spring given Shear Stress, Maximum Force and Wire Diameter

C = \frac{π \cdot f s \cdot {d w}^{2}}{8 \cdot K \cdot P}

How to Evaluate Free Length of Engine Valve Spring?

Free Length of Engine Valve Spring evaluator uses Free Length of Valve Spring = Total Coils in Valve Spring*Wire Diameter of Valve Spring+1.15*Maximum Compression in Valve Spring to evaluate the Free Length of Valve Spring, Free length of engine valve spring is defined as the axial length of the engine valve spring including the solid length and the total gap between the coils or the length between the ends of the spring when the spring is not compressed or extended. Free Length of Valve Spring is denoted by L_f symbol.

How to evaluate Free Length of Engine Valve Spring using this online evaluator? To use this online evaluator for Free Length of Engine Valve Spring, enter Total Coils in Valve Spring (N_t), Wire Diameter of Valve Spring (d_w) & Maximum Compression in Valve Spring (x) and hit the calculate button.

FAQs on Free Length of Engine Valve Spring

What is the formula to find Free Length of Engine Valve Spring?

The formula of Free Length of Engine Valve Spring is expressed as Free Length of Valve Spring = Total Coils in Valve Spring*Wire Diameter of Valve Spring+1.15*Maximum Compression in Valve Spring. Here is an example- 122520 = 15*0.0055+1.15*0.0348.

How to calculate Free Length of Engine Valve Spring?

With Total Coils in Valve Spring (N_t), Wire Diameter of Valve Spring (d_w) & Maximum Compression in Valve Spring (x) we can find Free Length of Engine Valve Spring using the formula - Free Length of Valve Spring = Total Coils in Valve Spring*Wire Diameter of Valve Spring+1.15*Maximum Compression in Valve Spring.

Can the Free Length of Engine Valve Spring be negative?

No, the Free Length of Engine Valve Spring, measured in Length cannot be negative.

Which unit is used to measure Free Length of Engine Valve Spring?

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

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Free Length of Engine Valve Spring Formula

Free Length of Engine Valve Spring Example

Free Length of Engine Valve Spring Solution

Free Length of Engine Valve Spring Formula Elements

Other formulas in Valve Spring category

How to Evaluate Free Length of Engine Valve Spring?

FAQs on Free Length of Engine Valve Spring

Variable Name