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Lift of Engine Valve Formula

GoMaximum Lift of Valve given Diameter of Port and Valve Seat Angle Formula

GoMaximum Lift of Valve for Flat Headed Valves Formula

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Lift of Valve is the height to which the valve is lifted during operation for the flow of gases. Check FAQs

h max = \frac{P 2}{k}

h_max - Lift of Valve?P₂ - Force to Lift Engine Valve?k - Stiffness of Valve Spring?

Lift of Engine Valve Example

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With units

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Here is how the Lift of Engine Valve equation looks like with Values.

Here is how the Lift of Engine Valve equation looks like with Units.

Here is how the Lift of Engine Valve equation looks like.

11 = \frac{102.3}{9.3}

11mm = \frac{102.3N}{9.3N/mm}

11 = \frac{102.3}{9.3}

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Lift of Engine Valve Solution

Follow our step by step solution on how to calculate Lift of Engine Valve?

FIRST Step Consider the formula

h max = \frac{P 2}{k}

Next Step Substitute values of Variables

∴

h max = \frac{102.3N}{9.3N/mm}

Next Step Convert Units

∴

h max = \frac{102.3N}{9300N/m}

Next Step Prepare to Evaluate

∴

h max = \frac{102.3}{9300}

Next Step Evaluate

∴

h max = 0.011m

LAST Step Convert to Output's Unit

∴

h max = 11mm

Lift of Engine Valve Formula Elements

Variables

Lift of Valve

Lift of Valve is the height to which the valve is lifted during operation for the flow of gases.

Symbol: h_max

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Lift of Valve

Force to Lift Engine Valve

Force to Lift Engine Valve is the amount of force (a push or pull upon the valve) that is required to lift the valve.

Symbol: P₂

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Force to Lift Engine Valve

Stiffness of Valve Spring

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.

Symbol: k

Measurement: Stiffness ConstantUnit: N/mm

Note: Value should be greater than 0.

Formulas to find Stiffness of Valve Spring

Other Formulas to find Lift of Valve

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

h max = \frac{d p}{4 \cdot \cos (α)}

Go Maximum Lift of Valve for Flat Headed Valves

h max = \frac{d p}{4}

Other formulas in Valve Lift category

Go Diameter of Port given Maximum Lift of Valve

d p = 4 \cdot h max \cdot \cos (α)

Go Valve Seat Angle given Maximum Lift of Valve

α = \arccos (\frac{d p}{4 \cdot h max})

Go Force Required to Lift Engine Valve

P 2 = k \cdot h max

How to Evaluate Lift of Engine Valve?

Lift of Engine Valve evaluator uses Lift of Valve = Force to Lift Engine Valve/Stiffness of Valve Spring to evaluate 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 evaluate Lift of Engine Valve using this online evaluator? To use this online evaluator for Lift of Engine Valve, enter Force to Lift Engine Valve (P₂) & Stiffness of Valve Spring (k) and hit the calculate button.

FAQs on Lift of Engine Valve

What is the formula to find Lift of Engine Valve?

The formula of Lift of Engine Valve is expressed as Lift of Valve = Force to Lift Engine Valve/Stiffness of Valve Spring. Here is an example- 11000 = 102.3/9300.

How to calculate Lift of Engine Valve?

With Force to Lift Engine Valve (P₂) & Stiffness of Valve Spring (k) we can find Lift of Engine Valve using the formula - Lift of Valve = Force to Lift Engine Valve/Stiffness of Valve Spring.

What are the other ways to Calculate Lift of Valve?

Here are the different ways to Calculate Lift of Valve-

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

Can the Lift of Engine Valve be negative?

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

Which unit is used to measure Lift of Engine Valve?

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

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Lift of Engine Valve Formula

​GoMaximum Lift of Valve given Diameter of Port and Valve Seat Angle Formula

​GoMaximum Lift of Valve for Flat Headed Valves Formula

Lift of Engine Valve Example

Lift of Engine Valve Solution

Lift of Engine Valve Formula Elements

Other Formulas to find Lift of Valve

Other formulas in Valve Lift category

How to Evaluate Lift of Engine Valve?

FAQs on Lift of Engine Valve

Variable Name

GoMaximum Lift of Valve given Diameter of Port and Valve Seat Angle Formula

GoMaximum Lift of Valve for Flat Headed Valves Formula