Thickness of Valve Disk given Force of Spring on Valve Calculator

✖Spring Force on Seated Valve is the force exerted by the valve spring onto the valve when it is seated.ⓘ Spring Force on Seated Valve [P_s]			+10% -10%
✖Diameter of Valve Stem is the diameter of the lowermost part of the valve (valve stem).ⓘ Diameter of Valve Stem [d_s]			+10% -10%
✖Diameter of Port is the diameter of the opening of the port of an IC Engine.ⓘ Diameter of Port [d_p]			+10% -10%
✖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.ⓘ Tensile Stress in Valve Stem [σ_t]			+10% -10%

✖Thickness of Valve Disk is the thickness of the circular valve disk of a valve and is the part of valve head.ⓘ Thickness of Valve Disk given Force of Spring on Valve [t]

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Thickness of Valve Disk given Force of Spring on Valve Solution

STEP 0: Pre-Calculation Summary

Formula Used

Thickness of Valve Disk = sqrt((1.4*Spring Force on Seated Valve*(1-(2*Diameter of Valve Stem)/(3*Diameter of Port)))/Tensile Stress in Valve Stem)
t = sqrt((1.4*P_s*(1-(2*d_s)/(3*d_p)))/σ_t)
This formula uses 1 Functions, 5 Variables

Functions Used

sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(Number)

Variables Used

Thickness of Valve Disk - (Measured in Meter) - Thickness of Valve Disk is the thickness of the circular valve disk of a valve and is the part of valve head.
Spring Force on Seated Valve - (Measured in Newton) - Spring Force on Seated Valve is the force exerted by the valve spring onto the valve when it is seated.
Diameter of Valve Stem - (Measured in Meter) - Diameter of Valve Stem is the diameter of the lowermost part of the valve (valve stem).
Diameter of Port - (Measured in Meter) - Diameter of Port is the diameter of the opening of the port of an IC Engine.
Tensile Stress in Valve Stem - (Measured in Pascal) - 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.

STEP 1: Convert Input(s) to Base Unit

Spring Force on Seated Valve: 63 Newton --> 63 Newton No Conversion Required
Diameter of Valve Stem: 15 Millimeter --> 0.015 Meter (Check conversion here)
Diameter of Port: 40 Millimeter --> 0.04 Meter (Check conversion here)
Tensile Stress in Valve Stem: 2.2 Newton per Square Millimeter --> 2200000 Pascal (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

t = sqrt((1.4*P_s*(1-(2*d_s)/(3*d_p)))/σ_t) --> sqrt((1.4*63*(1-(2*0.015)/(3*0.04)))/2200000)

Evaluating ... ...

t = 0.00548344616260448

STEP 3: Convert Result to Output's Unit

0.00548344616260448 Meter -->5.48344616260448 Millimeter (Check conversion here)

FINAL ANSWER

5.48344616260448 ≈ 5.483446 Millimeter <-- Thickness of Valve Disk

(Calculation completed in 00.008 seconds)

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Home » Physics » IC Engine » Design of IC Engine Components » Engine Valves » Mechanical » Valve Stem » Thickness of Valve Disk given Force of Spring on Valve

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< Valve Stem Calculators

Diameter of Port given Diameter of Valve Stem

LaTeX Go Diameter of Port = (Diameter of Valve Stem)/(1.5*(1-(Tensile Stress in Valve Stem*Thickness of Valve Disk^2)/(1.4*Spring Force on Seated Valve)))

Diameter of Valve Stem

LaTeX Go 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))

Minimum Diameter of Valve Stem

LaTeX Go Diameter of Valve Stem = Diameter of Port/8+6.35

Maximum Diameter of Valve Stem

LaTeX Go Diameter of Valve Stem = Diameter of Port/8+11

Thickness of Valve Disk given Force of Spring on Valve Formula

LaTeX Go

Thickness of Valve Disk = sqrt((1.4*Spring Force on Seated Valve*(1-(2*Diameter of Valve Stem)/(3*Diameter of Port)))/Tensile Stress in Valve Stem)
t = sqrt((1.4*P_s*(1-(2*d_s)/(3*d_p)))/σ_t)

Construction of Poppet valve of an IC Engine

The poppet valve consists of a disk called ‘head’ at the end of a rod called ‘stem’. The ‘face’ of the valve is a conical surface that comes in contact with a valve seat It has a face angle varying from 30° to 45°. The conical surface of the valve results in the self-centering property. There is a small margin between the head and the face. There are two reasons for providing the margin—it avoids the sharp edges and a provision is made for regrinding of the valve. The lower end of the valve stem has a groove. A spring retainer is fitted in this groove, which supports one end of the valve spring. In slow-speed engines, valves have composite construction with a cast iron head and steel stem. In high-speed engines, one-piece construction is used and valves are forged.

How to Calculate Thickness of Valve Disk given Force of Spring on Valve?

Thickness of Valve Disk given Force of Spring on Valve calculator uses Thickness of Valve Disk = sqrt((1.4*Spring Force on Seated Valve*(1-(2*Diameter of Valve Stem)/(3*Diameter of Port)))/Tensile Stress in Valve Stem) to calculate the Thickness of Valve Disk, Thickness of valve disk given force of spring on valve is the thickness of the circular valve disk of a valve and is the part of valve head. Thickness of Valve Disk is denoted by t symbol.

How to calculate Thickness of Valve Disk given Force of Spring on Valve using this online calculator? To use this online calculator for Thickness of Valve Disk given Force of Spring on Valve, enter Spring Force on Seated Valve (P_s), Diameter of Valve Stem (d_s), Diameter of Port (d_p) & Tensile Stress in Valve Stem (σ_t) and hit the calculate button. Here is how the Thickness of Valve Disk given Force of Spring on Valve calculation can be explained with given input values -> 5483.446 = sqrt((1.4*63*(1-(2*0.015)/(3*0.04)))/2200000).

FAQ

What is Thickness of Valve Disk given Force of Spring on Valve?

Thickness of valve disk given force of spring on valve is the thickness of the circular valve disk of a valve and is the part of valve head and is represented as t = sqrt((1.4*P_s*(1-(2*d_s)/(3*d_p)))/σ_t) or Thickness of Valve Disk = sqrt((1.4*Spring Force on Seated Valve*(1-(2*Diameter of Valve Stem)/(3*Diameter of Port)))/Tensile Stress in Valve Stem). Spring Force on Seated Valve is the force exerted by the valve spring onto the valve when it is seated, Diameter of Valve Stem is the diameter of the lowermost part of the valve (valve stem), Diameter of Port is the diameter of the opening of the port of an IC Engine & 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.

How to calculate Thickness of Valve Disk given Force of Spring on Valve?

Thickness of valve disk given force of spring on valve is the thickness of the circular valve disk of a valve and is the part of valve head is calculated using Thickness of Valve Disk = sqrt((1.4*Spring Force on Seated Valve*(1-(2*Diameter of Valve Stem)/(3*Diameter of Port)))/Tensile Stress in Valve Stem). To calculate Thickness of Valve Disk given Force of Spring on Valve, you need Spring Force on Seated Valve (P_s), Diameter of Valve Stem (d_s), Diameter of Port (d_p) & Tensile Stress in Valve Stem (σ_t). With our tool, you need to enter the respective value for Spring Force on Seated Valve, Diameter of Valve Stem, Diameter of Port & Tensile Stress in Valve Stem 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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