Carburettors having air or fuel-air mixture passage throttling valves other than of butterfly type (register-type carburettors F02M11/00); Carburettors having fuel-air mixing chambers of variable shape or position

Child Classifications

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• F02M 9/02 having throttling valves, e.g. of piston shape, slidably arranged transversely to the passage
• F02M 9/08 having throttling valves rotatably mounted in the passage
• F02M 9/10 having valves, or like controls, of elastic-wall type for controlling the passage, or for varying cross-sectional area, of fuel-air mixing chambers
• F02M 9/12 having other specific means for controlling the passage, or for varying cross-sectional area, of fuel-air mixing chambers
• F02M 9/14 having venturi and nozzle relatively displaceable essentially along the venture axis