Lift of Engine Valve Calculator

✖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 to Lift Engine Valve [P₂]			+10% -10%
✖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 Engine Valve [h_max]

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Lift of Engine Valve Solution

STEP 0: Pre-Calculation Summary

Formula Used

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

Variables Used

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.
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.

STEP 1: Convert Input(s) to Base Unit

Force to Lift Engine Valve: 102.3 Newton --> 102.3 Newton No Conversion Required
Stiffness of Valve Spring: 9.3 Newton per Millimeter --> 9300 Newton per Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

h_max = P₂/k --> 102.3/9300

Evaluating ... ...

h_max = 0.011

STEP 3: Convert Result to Output's Unit

0.011 Meter -->11 Millimeter (Check conversion here)

FINAL ANSWER

11 Millimeter <-- Lift of Valve

(Calculation completed in 00.020 seconds)

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Home » Physics » IC Engine » Design of IC Engine Components » Engine Valves » Mechanical » Valve Lift » Lift of Engine Valve

Credits

Created by Saurabh Patil

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

Saurabh Patil has created this Calculator and 700+ more calculators!

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

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< Valve Lift Calculators

Valve Seat Angle given Maximum Lift of Valve

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

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

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

Diameter of Port given Maximum Lift of Valve

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

Maximum Lift of Valve for Flat Headed Valves

LaTeX Go Lift of Valve = Diameter of Port/4

Lift of Engine Valve Formula

LaTeX Go

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

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, the initial spring force and force required to lift the valve.

How to Calculate Lift of Engine Valve?

Lift of Engine Valve calculator uses Lift of Valve = Force to Lift Engine Valve/Stiffness of Valve Spring to calculate the Lift of Valve, The Lift of engine valve is the height to which the engine valve is lifted during operation for the flow of gases. Lift of Valve is denoted by h_max symbol.

How to calculate Lift of Engine Valve using this online calculator? To use this online calculator for Lift of Engine Valve, enter Force to Lift Engine Valve (P₂) & Stiffness of Valve Spring (k) and hit the calculate button. Here is how the Lift of Engine Valve calculation can be explained with given input values -> 11000 = 102.3/9300.

FAQ

What is Lift of Engine Valve?

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

How to calculate Lift of Engine Valve?

The Lift of engine valve is the height to which the engine valve is lifted during operation for the flow of gases is calculated using Lift of Valve = Force to Lift Engine Valve/Stiffness of Valve Spring. To calculate Lift of Engine Valve, you need Force to Lift Engine Valve (P₂) & Stiffness of Valve Spring (k). With our tool, you need to enter the respective value for Force to Lift Engine Valve & Stiffness 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 Lift of Valve?

In this formula, Lift of Valve uses Force to Lift Engine Valve & Stiffness of Valve Spring. We can use 2 other way(s) to calculate the same, which is/are as follows -

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

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