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Solid Length of Valve Spring is defined as the axial length of the spring which is so compressed that the adjacent coils touch each other. It represents the minimum possible length the spring can achieve under maximum compression.
The calculator uses the formula:
Where:
Explanation: The formula calculates the solid length by subtracting 1.15 times the maximum compression from the free length of the spring. The factor 1.15 accounts for the additional compression beyond the maximum working compression to ensure coils are fully compressed.
Details: Calculating the solid length is crucial for valve spring design to prevent coil binding, ensure proper spring operation, and maintain valve timing accuracy in internal combustion engines.
Tips: Enter free length and maximum compression in meters. Both values must be positive numbers with free length greater than maximum compression.
Q1: Why is the factor 1.15 used in the formula?
A: The factor 1.15 accounts for additional compression beyond the maximum working compression to ensure the spring coils are fully compressed and touching each other.
Q2: What happens if the solid length is too short?
A: If the solid length is too short, it may cause coil binding, which can lead to spring failure, valve timing issues, and engine damage.
Q3: Can this formula be used for all types of springs?
A: This formula is specifically designed for helical compression valve springs used in internal combustion engines.
Q4: How does maximum compression affect solid length?
A: Greater maximum compression results in a shorter solid length, as more compression means the spring coils are compressed closer together.
Q5: What units should be used for input values?
A: The calculator uses meters (m) for both free length and maximum compression. Ensure consistent units for accurate results.