Force Required to Lift Engine Valve Calculator

✖Stiffness of Valve Spring is a measure of the resistance offered by an elastic valve spring to deformation, every object in this universe has some stiffness.ⓘ Stiffness of Valve Spring [k]			+10% -10%
✖Lift of Valve is the height to which the valve is lifted during operation for the flow of gases.ⓘ Lift of Valve [h_max]			+10% -10%

✖Force to Lift Engine Valve is the amount of force (a push or pull upon the valve) that is required to lift the valve.ⓘ Force Required to Lift Engine Valve [P₂]

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Formula

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Force Required to Lift Engine Valve

Formula

`"P"_{"2"} = "k"*"h"_{"max"}`

Example

`"102.3N"="9.3N/mm"*"11mm"`

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Force Required to Lift Engine Valve Solution

STEP 0: Pre-Calculation Summary

Formula Used

Force to Lift Engine Valve = Stiffness of Valve Spring*Lift of Valve
P₂ = k*h_max
This formula uses 3 Variables

Variables Used

Force to Lift Engine Valve - (Measured in Newton) - Force to Lift Engine Valve is the amount of force (a push or pull upon the valve) that is required to lift the valve.
Stiffness of Valve Spring - (Measured in Newton per Meter) - Stiffness of Valve Spring is a measure of the resistance offered by an elastic valve spring to deformation, every object in this universe has some stiffness.
Lift of Valve - (Measured in Meter) - Lift of Valve is the height to which the valve is lifted during operation for the flow of gases.

STEP 1: Convert Input(s) to Base Unit

Stiffness of Valve Spring: 9.3 Newton per Millimeter --> 9300 Newton per Meter (Check conversion here)
Lift of Valve: 11 Millimeter --> 0.011 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

P₂ = k*h_max --> 9300*0.011

Evaluating ... ...

P₂ = 102.3

STEP 3: Convert Result to Output's Unit

102.3 Newton --> No Conversion Required

FINAL ANSWER

102.3 Newton <-- Force to Lift Engine Valve

(Calculation completed in 00.004 seconds)

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Created by Saurabh Patil

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

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National Institute Of Technology (NIT), Hamirpur

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< 6 Valve Lift Calculators

Valve Seat Angle given Maximum Lift of Valve

Go Valve Seat Angle = arccos(Diameter of Port/(4*Lift of Valve))

Maximum Lift of Valve given Diameter of Port and Valve Seat Angle

Go Lift of Valve = Diameter of Port/(4*cos(Valve Seat Angle))

Diameter of Port given Maximum Lift of Valve

Go Diameter of Port = 4*Lift of Valve*cos(Valve Seat Angle)

Force Required to Lift Engine Valve

Go Force to Lift Engine Valve = Stiffness of Valve Spring*Lift of Valve

Lift of Engine Valve

Go Lift of Valve = Force to Lift Engine Valve/Stiffness of Valve Spring

Maximum Lift of Valve for Flat Headed Valves

Go Lift of Valve = Diameter of Port/4

Force Required to Lift Engine Valve Formula

Force to Lift Engine Valve = Stiffness of Valve Spring*Lift of Valve
P₂ = k*h_max

Working of Valve Spring

The purpose of the valve spring is to exert a force on the rocker arm in order to maintain contact between the follower and cam at the other end. During the suction stroke, the initial spring force keeps the valve closed against negative pressure inside the cylinder. The total force acting on the spring of the exhaust valve consists of two factors, viz., the initial spring force and force required to lift the valve.

How to Calculate Force Required to Lift Engine Valve?

Force Required to Lift Engine Valve calculator uses Force to Lift Engine Valve = Stiffness of Valve Spring*Lift of Valve to calculate the Force to Lift Engine Valve, The Force required to lift engine valve is the amount of extra spring force over the initial spring force that is required to lift the valve. Force to Lift Engine Valve is denoted by P₂ symbol.

How to calculate Force Required to Lift Engine Valve using this online calculator? To use this online calculator for Force Required to Lift Engine Valve, enter Stiffness of Valve Spring (k) & Lift of Valve (h_max) and hit the calculate button. Here is how the Force Required to Lift Engine Valve calculation can be explained with given input values -> 102.3 = 9300*0.011.

FAQ

What is Force Required to Lift Engine Valve?

The Force required to lift engine valve is the amount of extra spring force over the initial spring force that is required to lift the valve and is represented as P₂ = k*h_max or Force to Lift Engine Valve = Stiffness of Valve Spring*Lift of Valve. Stiffness of Valve Spring is a measure of the resistance offered by an elastic valve spring to deformation, every object in this universe has some stiffness & Lift of Valve is the height to which the valve is lifted during operation for the flow of gases.

How to calculate Force Required to Lift Engine Valve?

The Force required to lift engine valve is the amount of extra spring force over the initial spring force that is required to lift the valve is calculated using Force to Lift Engine Valve = Stiffness of Valve Spring*Lift of Valve. To calculate Force Required to Lift Engine Valve, you need Stiffness of Valve Spring (k) & Lift of Valve (h_max). With our tool, you need to enter the respective value for Stiffness of Valve Spring & Lift of Valve 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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