Diameter of Valve Head given Load on Exhaust Valve and Back Pressure Calculator

✖Gas Load on Exhaust Valve is the amount of force acting on the inner side of the exhaust valve due to the back pressure or cylinder pressure when the exhaust valve opens.ⓘ Gas Load on Exhaust Valve [P_g]			+10% -10%
✖Back Pressure on Engine Valve is the pressure exerted onto the valve when it opens.ⓘ Back Pressure on Engine Valve [P_b]			+10% -10%

✖Diameter of Valve Head is the diameter of the top part of valve of an IC engine, valve intakes and exhausts gases to and from an engine.ⓘ Diameter of Valve Head given Load on Exhaust Valve and Back Pressure [d_v]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download IC Engine Formula PDF PDF Image

Diameter of Valve Head given Load on Exhaust Valve and Back Pressure Solution

STEP 0: Pre-Calculation Summary

Formula Used

Diameter of Valve Head = sqrt((4*Gas Load on Exhaust Valve)/(pi*Back Pressure on Engine Valve))
d_v = sqrt((4*P_g)/(pi*P_b))
This formula uses 1 Constants, 1 Functions, 3 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

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

Diameter of Valve Head - (Measured in Meter) - Diameter of Valve Head is the diameter of the top part of valve of an IC engine, valve intakes and exhausts gases to and from an engine.
Gas Load on Exhaust Valve - (Measured in Newton) - Gas Load on Exhaust Valve is the amount of force acting on the inner side of the exhaust valve due to the back pressure or cylinder pressure when the exhaust valve opens.
Back Pressure on Engine Valve - (Measured in Pascal) - Back Pressure on Engine Valve is the pressure exerted onto the valve when it opens.

STEP 1: Convert Input(s) to Base Unit

Gas Load on Exhaust Valve: 1680 Newton --> 1680 Newton No Conversion Required
Back Pressure on Engine Valve: 0.8 Megapascal --> 800000 Pascal (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

d_v = sqrt((4*P_g)/(pi*P_b)) --> sqrt((4*1680)/(pi*800000))

Evaluating ... ...

d_v = 0.0517088294582641

STEP 3: Convert Result to Output's Unit

0.0517088294582641 Meter -->51.7088294582641 Millimeter (Check conversion here)

FINAL ANSWER

51.7088294582641 ≈ 51.70883 Millimeter <-- Diameter of Valve Head

(Calculation completed in 00.004 seconds)

You are here -

Home » Physics » IC Engine » Design of IC Engine Components » Engine Valves » Mechanical » Valve Head » Diameter of Valve Head given Load on Exhaust Valve and Back Pressure

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!

Verified by Anshika Arya

National Institute Of Technology (NIT), Hamirpur

Anshika Arya has verified this Calculator and 2500+ more calculators!

< Valve Head Calculators

Diameter of Valve Head given Diameter of Port and Projected Width of Valve Seat

LaTeX Go Diameter of Valve Head = Diameter of Port+2*Projected Width of Valve Seat

Minimum Projected Width of Valve Seat given Port Diameter

LaTeX Go Projected Width of Valve Seat = 0.05*Diameter of Port

Maximum Projected Width of Valve Seat given Port Diameter

LaTeX Go Projected Width of Valve Seat = 0.07*Diameter of Port

Projected Width of Valve Seat given Port Diameter

LaTeX Go Projected Width of Valve Seat = 0.06*Diameter of Port

Diameter of Valve Head given Load on Exhaust Valve and Back Pressure Formula

LaTeX Go

Diameter of Valve Head = sqrt((4*Gas Load on Exhaust Valve)/(pi*Back Pressure on Engine Valve))
d_v = sqrt((4*P_g)/(pi*P_b))

Engine Valve Materials

The inlet valve is subjected to comparatively less temperature than the exhaust valve. Therefore, inlet valves are made of nickel-chromium steel. The exhaust valves are made of heat-resistant silicon–chromium steel. For heavy-duty engines, valves are made of chromium-vanadium steel. The valves are heat treated and surface hardness for inlet and exhaust valves is in the range of 250 to 300 HB.

How to Calculate Diameter of Valve Head given Load on Exhaust Valve and Back Pressure?

Diameter of Valve Head given Load on Exhaust Valve and Back Pressure calculator uses Diameter of Valve Head = sqrt((4*Gas Load on Exhaust Valve)/(pi*Back Pressure on Engine Valve)) to calculate the Diameter of Valve Head, Diameter of valve head given load on exhaust valve and back pressure is the diameter of the top part of valve of an IC engine, valve intakes, and exhausts gases to and from an engine. Diameter of Valve Head is denoted by d_v symbol.

How to calculate Diameter of Valve Head given Load on Exhaust Valve and Back Pressure using this online calculator? To use this online calculator for Diameter of Valve Head given Load on Exhaust Valve and Back Pressure, enter Gas Load on Exhaust Valve (P_g) & Back Pressure on Engine Valve (P_b) and hit the calculate button. Here is how the Diameter of Valve Head given Load on Exhaust Valve and Back Pressure calculation can be explained with given input values -> 51708.83 = sqrt((4*1680)/(pi*800000)).

FAQ

What is Diameter of Valve Head given Load on Exhaust Valve and Back Pressure?

Diameter of valve head given load on exhaust valve and back pressure is the diameter of the top part of valve of an IC engine, valve intakes, and exhausts gases to and from an engine and is represented as d_v = sqrt((4*P_g)/(pi*P_b)) or Diameter of Valve Head = sqrt((4*Gas Load on Exhaust Valve)/(pi*Back Pressure on Engine Valve)). Gas Load on Exhaust Valve is the amount of force acting on the inner side of the exhaust valve due to the back pressure or cylinder pressure when the exhaust valve opens & Back Pressure on Engine Valve is the pressure exerted onto the valve when it opens.

How to calculate Diameter of Valve Head given Load on Exhaust Valve and Back Pressure?

Diameter of valve head given load on exhaust valve and back pressure is the diameter of the top part of valve of an IC engine, valve intakes, and exhausts gases to and from an engine is calculated using Diameter of Valve Head = sqrt((4*Gas Load on Exhaust Valve)/(pi*Back Pressure on Engine Valve)). To calculate Diameter of Valve Head given Load on Exhaust Valve and Back Pressure, you need Gas Load on Exhaust Valve (P_g) & Back Pressure on Engine Valve (P_b). With our tool, you need to enter the respective value for Gas Load on Exhaust Valve & Back Pressure on Engine Valve 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 Diameter of Valve Head?

In this formula, Diameter of Valve Head uses Gas Load on Exhaust Valve & Back Pressure on Engine Valve. We can use 3 other way(s) to calculate the same, which is/are as follows -

Diameter of Valve Head = Diameter of Port+2*Projected Width of Valve Seat
Diameter of Valve Head = 1.12*Diameter of Port
Diameter of Valve Head = 18.666*Projected Width of Valve Seat

Home

FREE PDFs

🔍 Search