Number of Active Turns of Engine Valve Spring given Pitch of Spring Calculator

✖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.ⓘ Free Length of Valve Spring [L_f]			+10% -10%
✖Pitch of Valve spring is defined as the axial distance between adjacent coils in the uncompressed state of the spring.ⓘ Pitch of Valve Spring [p]			+10% -10%

✖Active Coils in Valve Spring is the number of coils or turns of a spring that actually contributes to the load-bearing capacity of the valve spring.ⓘ Number of Active Turns of Engine Valve Spring given Pitch of Spring [N]

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Number of Active Turns of Engine Valve Spring given Pitch of Spring Solution

STEP 0: Pre-Calculation Summary

Formula Used

Active Coils in Valve Spring = Free Length of Valve Spring/Pitch of Valve Spring-1
N = L_f/p-1
This formula uses 3 Variables

Variables Used

Active Coils in Valve Spring - Active Coils in Valve Spring is the number of coils or turns of a spring that actually contributes to the load-bearing capacity of the valve spring.
Free Length of Valve Spring - (Measured in Meter) - 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.
Pitch of Valve Spring - (Measured in Meter) - Pitch of Valve spring is defined as the axial distance between adjacent coils in the uncompressed state of the spring.

STEP 1: Convert Input(s) to Base Unit

Free Length of Valve Spring: 122 Millimeter --> 0.122 Meter (Check conversion here)
Pitch of Valve Spring: 9.1 Millimeter --> 0.0091 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

N = L_f/p-1 --> 0.122/0.0091-1

Evaluating ... ...

N = 12.4065934065934

STEP 3: Convert Result to Output's Unit

12.4065934065934 --> No Conversion Required

FINAL ANSWER

12.4065934065934 ≈ 12.40659 <-- Active Coils in Valve Spring

(Calculation completed in 00.004 seconds)

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Shri Govindram Seksaria Institute of Technology and Science (SGSITS ), Indore

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< Valve Spring Calculators

Diameter of Wire of Engine Valve Spring

LaTeX Go Wire Diameter of Valve Spring = sqrt((8*Wahl Factor of Valve Spring*((Initial Spring Force on Valve+Stiffness of Valve Spring*Lift of Valve)*Spring Index for Valve Spring))/(pi*Shear Stress in Valve Spring))

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

LaTeX Go Wire Diameter of Valve Spring = sqrt((8*Wahl Factor of Valve Spring*Axial Force on Valve Spring*Spring Index for Valve Spring)/(pi*Shear Stress in Valve Spring))

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

LaTeX Go Spring Index for Valve Spring = (pi*Shear Stress in Valve Spring*Wire Diameter of Valve Spring^2)/(8*Wahl Factor of Valve Spring*Axial Force on Valve Spring)

Diameter of Wire of Engine Valve Spring given Mean Coil Diameter

LaTeX Go Wire Diameter of Valve Spring = Mean Coil Diameter of Valve Spring/8

Number of Active Turns of Engine Valve Spring given Pitch of Spring Formula

LaTeX Go

Active Coils in Valve Spring = Free Length of Valve Spring/Pitch of Valve Spring-1
N = L_f/p-1

What is meant by stiffness of spring?

Spring stiffness is a characteristic that describes the relationship between load and deflection. If k is stiffness, P is load, and x is deflection,
Then P = k*x
The smaller the deflection at a constant load, the stiffer the spring, k.

How to Calculate Number of Active Turns of Engine Valve Spring given Pitch of Spring?

Number of Active Turns of Engine Valve Spring given Pitch of Spring calculator uses Active Coils in Valve Spring = Free Length of Valve Spring/Pitch of Valve Spring-1 to calculate the Active Coils in Valve Spring, Number of active turns of engine valve spring given pitch of spring is the number of coils or turns in the engine valve spring that actually contributes to the load-bearing capacity of the spring. Active Coils in Valve Spring is denoted by N symbol.

How to calculate Number of Active Turns of Engine Valve Spring given Pitch of Spring using this online calculator? To use this online calculator for Number of Active Turns of Engine Valve Spring given Pitch of Spring, enter Free Length of Valve Spring (L_f) & Pitch of Valve Spring (p) and hit the calculate button. Here is how the Number of Active Turns of Engine Valve Spring given Pitch of Spring calculation can be explained with given input values -> 13.28571 = 0.122/0.0091-1.

FAQ

What is Number of Active Turns of Engine Valve Spring given Pitch of Spring?

Number of active turns of engine valve spring given pitch of spring is the number of coils or turns in the engine valve spring that actually contributes to the load-bearing capacity of the spring and is represented as N = L_f/p-1 or Active Coils in Valve Spring = Free Length of Valve Spring/Pitch of Valve Spring-1. 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 & Pitch of Valve spring is defined as the axial distance between adjacent coils in the uncompressed state of the spring.

How to calculate Number of Active Turns of Engine Valve Spring given Pitch of Spring?

Number of active turns of engine valve spring given pitch of spring is the number of coils or turns in the engine valve spring that actually contributes to the load-bearing capacity of the spring is calculated using Active Coils in Valve Spring = Free Length of Valve Spring/Pitch of Valve Spring-1. To calculate Number of Active Turns of Engine Valve Spring given Pitch of Spring, you need Free Length of Valve Spring (L_f) & Pitch of Valve Spring (p). With our tool, you need to enter the respective value for Free Length of Valve Spring & Pitch of Valve Spring and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Active Coils in Valve Spring?

In this formula, Active Coils in Valve Spring uses Free Length of Valve Spring & Pitch of Valve Spring. We can use 3 other way(s) to calculate the same, which is/are as follows -

Active Coils in Valve Spring = (Modulus of Rigidity of Valve Spring*Wire Diameter of Valve Spring^4)/(8*Mean Coil Diameter of Valve Spring^3*Stiffness of Valve Spring)
Active Coils in Valve Spring = Total Coils in Valve Spring-2
Active Coils in Valve Spring = (Modulus of Rigidity of Valve Spring*Wire Diameter of Valve Spring^4*Maximum Compression in Valve Spring)/(8*Axial Force on Valve Spring*Mean Coil Diameter of Valve Spring^3)

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