THREE-STEP GAS PRESSURE REGULATOR Russian patent published in 2000 - IPC

FIELD: pressure regulation for natural gas used as engine fuel. SUBSTANCE: device is designed as additional pressure regulator, which may be combined with standard single-step or two-step pressure regulators. It may be also combined with two-step balanced gas pressure regulator, in order to three-step vacuum consumption gas pressure regulation system, which is designed for regulation of compressed gas pressure. Device is designed as strong, compact device, which ensures high usage flow, insignificant pressure drop and deviation from nominal value, insignificant runaway pressure increment. Device is designed for either normal usage or usage as redundant part. Device may be used in mono-, bi- or double-fuel engines. EFFECT: maximal sensitivity to inlet pressure level alterations, minimal pressure variations at output. 5 cl, 24 dwg