Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve Calculator

✖Total Force on Rocker Arm of Inlet Valve is the total force acting onto the rocker arm of the inlet valve.ⓘ Total Force on Rocker Arm of Inlet Valve [P_i]			+10% -10%
✖Inertia Force on Valve is the force acting opposite to the direction of valve motion onto the valve.ⓘ Inertia Force on Valve [Pa_valve]			+10% -10%

✖Spring Force on Rocker Arm Valve is the force exerted by a compressed or stretched spring upon any object that is attached to it.ⓘ Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve [P_sr]

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Formula

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Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve

Formula

`"P"_{"sr"} = "P"_{"i"}-"Pa"_{"valve"}`

Example

`"85N"="200N"-"115N"`

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Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve Solution

STEP 0: Pre-Calculation Summary

Formula Used

Spring Force on Rocker Arm Valve = Total Force on Rocker Arm of Inlet Valve-Inertia Force on Valve
P_sr = P_i-Pa_valve
This formula uses 3 Variables

Variables Used

Spring Force on Rocker Arm Valve - (Measured in Newton) - Spring Force on Rocker Arm Valve is the force exerted by a compressed or stretched spring upon any object that is attached to it.
Total Force on Rocker Arm of Inlet Valve - (Measured in Newton) - Total Force on Rocker Arm of Inlet Valve is the total force acting onto the rocker arm of the inlet valve.
Inertia Force on Valve - (Measured in Newton) - Inertia Force on Valve is the force acting opposite to the direction of valve motion onto the valve.

STEP 1: Convert Input(s) to Base Unit

Total Force on Rocker Arm of Inlet Valve: 200 Newton --> 200 Newton No Conversion Required
Inertia Force on Valve: 115 Newton --> 115 Newton No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

P_sr = P_i-Pa_valve --> 200-115

Evaluating ... ...

P_sr = 85

STEP 3: Convert Result to Output's Unit

85 Newton --> No Conversion Required

FINAL ANSWER

85 Newton <-- Spring Force on Rocker Arm Valve

(Calculation completed in 00.004 seconds)

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< 16 Force on Rocker Arm of Valves Calculators

Total Force on Rocker Arm of Exhaust Valve given Suction Pressure

Go Total Force on Rocker Arm of Exhaust Valve = (pi*Back Pressure on Engine Valve*Diameter of Valve Head^2)/4+Mass of Valve*Acceleration of Valve+(pi*Maximum Suction Pressure*Diameter of Valve Head^2)/4

Total Force on Rocker Arm of Inlet Valve given Suction Pressure

Go Total Force on Rocker Arm of Inlet Valve = Mass of Valve*Acceleration of Valve+(pi*Maximum Suction Pressure*Diameter of Valve Head^2)/4

Total Force on Rocker Arm of Exhaust Valve given Bending Moment near Boss of Rocker Arm

Go Total Force on Rocker Arm of Exhaust Valve = Bending Moment in Rocker Arm/(Length of Rocker Arm on Exhaust Valve Side-Diameter of Fulcrum Pin)

Downward Inertia Force on Exhaust Valve given Total Force on Rocker Arm of Exhaust Valve

Go Inertia Force on Valve = Total Force on Rocker Arm of Exhaust Valve-(Spring Force on Rocker Arm Valve+Gas Load on Exhaust Valve)

Initial Spring Force on Exhaust Valve given Total Force on Rocker Arm of Exhaust Valve

Go Spring Force on Rocker Arm Valve = Total Force on Rocker Arm of Exhaust Valve-(Inertia Force on Valve+Gas Load on Exhaust Valve)

Gas Load on Exhaust Valve given Total Force on Rocker Arm of Exhaust Valve

Go Gas Load on Exhaust Valve = Total Force on Rocker Arm of Exhaust Valve-(Inertia Force on Valve+Spring Force on Rocker Arm Valve)

Total Force on Rocker Arm of Exhaust Valve

Go Total Force on Rocker Arm of Exhaust Valve = Gas Load on Exhaust Valve+Inertia Force on Valve+Spring Force on Rocker Arm Valve

Maximum Suction Pressure on Exhaust Valve

Go Maximum Suction Pressure = (4*Spring Force on Rocker Arm Valve)/(pi*Diameter of Valve Head^2)

Back Pressure when Exhaust Valve Opens

Go Back Pressure on Engine Valve = (4*Gas Load on Exhaust Valve)/(pi*Diameter of Valve Head^2)

Initial Spring Force on Exhaust Valve

Go Spring Force on Rocker Arm Valve = (pi*Maximum Suction Pressure*Diameter of Valve Head^2)/4

Gas Load on Exhaust Valve when it Opens

Go Gas Load on Exhaust Valve = (pi*Back Pressure on Engine Valve*Diameter of Valve Head^2)/4

Downward Inertia Force on Valve given Total Force on Rocker Arm of Inlet Valve

Go Inertia Force on Valve = Total Force on Rocker Arm of Inlet Valve-Spring Force on Rocker Arm Valve

Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve

Go Spring Force on Rocker Arm Valve = Total Force on Rocker Arm of Inlet Valve-Inertia Force on Valve

Total Force on Rocker Arm of Inlet Valve

Go Total Force on Rocker Arm of Inlet Valve = Inertia Force on Valve+Spring Force on Rocker Arm Valve

Bending Stress in Rocker Arm near Boss of Rocker Arm given Bending Moment

Go Bending Stress in Rocker Arm = Bending Moment in Rocker Arm/(37*Thickness of Rocker Arm Web^3)

Downward Inertia Force on Exhaust Valve as it Moves Upwards

Go Inertia Force on Valve = Mass of Valve*Acceleration of Valve

Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve Formula

Spring Force on Rocker Arm Valve = Total Force on Rocker Arm of Inlet Valve-Inertia Force on Valve
P_sr = P_i-Pa_valve

What is SI Engine?

A spark-ignition engine (SI engine) is an internal combustion engine, generally a petrol engine, where the combustion process of the air-fuel mixture is ignited by a spark from a spark plug. This is in contrast to compression-ignition engines, typically diesel engines, where the heat generated from compression together with the injection of fuel is enough to initiate the combustion process, without needing any external spark. Spark-ignition engines are commonly referred to as "gasoline engines" in North America, and "petrol engines" in Britain and the rest of the world. Spark-ignition engines can (and increasingly are) run on fuels other than petrol/gasoline, such as autogas (LPG), methanol, ethanol, bioethanol, compressed natural gas (CNG), hydrogen, and (in drag racing) nitromethane.

How to Calculate Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve?

Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve calculator uses Spring Force on Rocker Arm Valve = Total Force on Rocker Arm of Inlet Valve-Inertia Force on Valve to calculate the Spring Force on Rocker Arm Valve, The Initial spring force on valve given total force on rocker arm of inlet valve is the amount of force exerted by the spring onto the inlet valve during its opening. Spring Force on Rocker Arm Valve is denoted by P_sr symbol.

How to calculate Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve using this online calculator? To use this online calculator for Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve, enter Total Force on Rocker Arm of Inlet Valve (P_i) & Inertia Force on Valve (Pa_valve) and hit the calculate button. Here is how the Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve calculation can be explained with given input values -> 85 = 200-115.

FAQ

What is Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve?

The Initial spring force on valve given total force on rocker arm of inlet valve is the amount of force exerted by the spring onto the inlet valve during its opening and is represented as P_sr = P_i-Pa_valve or Spring Force on Rocker Arm Valve = Total Force on Rocker Arm of Inlet Valve-Inertia Force on Valve. Total Force on Rocker Arm of Inlet Valve is the total force acting onto the rocker arm of the inlet valve & Inertia Force on Valve is the force acting opposite to the direction of valve motion onto the valve.

How to calculate Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve?

The Initial spring force on valve given total force on rocker arm of inlet valve is the amount of force exerted by the spring onto the inlet valve during its opening is calculated using Spring Force on Rocker Arm Valve = Total Force on Rocker Arm of Inlet Valve-Inertia Force on Valve. To calculate Initial Spring Force on Valve given Total Force on Rocker Arm of Inlet Valve, you need Total Force on Rocker Arm of Inlet Valve (P_i) & Inertia Force on Valve (Pa_valve). With our tool, you need to enter the respective value for Total Force on Rocker Arm of Inlet Valve & Inertia Force on 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 Spring Force on Rocker Arm Valve?

In this formula, Spring Force on Rocker Arm Valve uses Total Force on Rocker Arm of Inlet Valve & Inertia Force on Valve. We can use 2 other way(s) to calculate the same, which is/are as follows -

Spring Force on Rocker Arm Valve = (pi*Maximum Suction Pressure*Diameter of Valve Head^2)/4
Spring Force on Rocker Arm Valve = Total Force on Rocker Arm of Exhaust Valve-(Inertia Force on Valve+Gas Load on Exhaust Valve)

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