Valves responsive to engine conditions, e.g. manifold vacuum (carburettors with means for facilitating engine's idling below operational temperatures F02M1/00)

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Idling devices for carburettors (with means for facilitating engine's idling below operational temperatures F02M1/00) > Other details of idling devices (fighting ice-formation by heating idling ports F02M15/02) > Valves responsive to engine conditions, e.g. manifold vacuum (carburettors with means for facilitating engine's idling below operational temperatures F02M1/00)