GAS PRESSURE REGULATOR Russian patent published in 1996 - IPC

FIELD: devices for automatic control. SUBSTANCE: device has housing 1, input chamber 2, output chamber 3, regulating valve 4, detecting element 5, control chamber 6 and setting chamber 7, which has non-linear spring, and tuning unit 8. Non-linear response of spring is described by equation Fke 6l/Δl,, where F is spring pressure, L is motion of detecting element, Δl is effective range for motion of detecting element, σ is specific non-linearity error, k is coefficient, e is natural logarithmic base. EFFECT: increased precision of setting output pressure in wide tuning range. 1 dwg