Home
Back
Formula Used:
| From: | To: |
The pitch of a valve spring is defined as the axial distance between adjacent coils in the uncompressed state of the spring. It is an important parameter in spring design that affects the spring's performance and characteristics.
The calculator uses the formula:
Where:
Explanation: The formula calculates the pitch by dividing the free length of the spring by the number of gaps between coils (which is one less than the total number of coils).
Details: Accurate pitch calculation is crucial for proper spring design and performance. It affects the spring's compression characteristics, load-bearing capacity, and overall functionality in engine valve systems.
Tips: Enter the free length of the valve spring in meters and the total number of coils. The total number of coils must be greater than 1 for valid calculation.
Q1: Why is the formula Nt-1 instead of Nt?
A: The formula uses Nt-1 because the pitch is measured between coils, and for N coils there are N-1 gaps between them.
Q2: What are typical pitch values for valve springs?
A: Pitch values vary depending on spring design and application, but typically range from a few millimeters to several centimeters for different engine types.
Q3: How does pitch affect spring performance?
A: The pitch affects the spring's stiffness, natural frequency, and compression characteristics. Smaller pitch generally means stiffer spring behavior.
Q4: Can this formula be used for compressed springs?
A: No, this formula is specifically for calculating pitch in the uncompressed (free) state of the spring.
Q5: What units should be used for input values?
A: The calculator uses meters for length, but you can convert from other units (like mm or cm) by using appropriate conversion factors.