COLD STARTING AIR CONTROLLER

摘要

PURPOSE: To increase the flow of the air in the cold start by using an air delivery system in which the delivery of air to a vacuum generating manifold is controlled by a throttle valve and a by-pass valve parallel with the throttle valve. CONSTITUTION: A passage connecting a manifold 14 and the atmospheric air is defined in parallel with a throttle valve 16 and a by-pass valve 18, and a means which has a cross-sectional area greater than that of the by-pass valve 18 for offering a less restricted air flow path than that of the by-pass valve 18, and a valve means mounted in the passage for opening and closing the passage, energized in the opening position, and movable to the closing position in response to the vacuum level generated in the manifold 14 are composed. The delivery of air to the vacuum generating manifold 14 is performed by an air delivery system arranged in parallel with the throttle valve 16 while controlled by the throttle valve 16 and the by-pass valve 18 having the specific cross-sectional area.