INTAKE DEVICE OF ENGINE

摘要

PURPOSE:To improve mounting characteristics of an intake device by mounting ISC(idle speed control) valves and FICD(fast idle control device) valve on a throttle body, and forming an auxiliary air passage related thereto. CONSTITUTION:Two intake passages 3a, 3b which correspond with banks of an engine are formed at a throttle body 3 connected to an air cleaner via an intake pipe, and throttle valves 4 are provided thereat respectively. At the throttle body 3, a throttle switch 7 is provided, and an ISC valve 8 and FICD valve 9 are mounted. At the body 3, an idle bypass passage (the downstream side is shown by a numeral 11) which opened and closed by the ISC valve fixed to a body side wall are formed. A FICD bypass passage 12, an air bypass passage 13 and a canister purge passage 14 are formed integrally at the opposed side wall with respect to the ISC valve 8 of the body 3.