Patent ID: 7757479
Filing Date: 2010-07-20
Classification: F01N,F02B,F02M,Y02T

Abstract:
1. A secondary air supply system provided between an air cleaner attached to an engine and an exhaust port of the engine to supply air from the air cleaner to the exhaust port, the secondary air supply system comprising: a secondary air supply pipe configured to be in direct contact with the air cleaner; a secondary air control valve coupled to the secondary air supply pipe via a first secondary air supply duct; and a lead valve configured to be coupled to the exhaust port of the engine, the lead valve coupled to the secondary air control valve via a second secondary air supply duct; wherein the secondary air supply pipe, the secondary air control valve, and the lead valve are arranged to be disposed on a substantially same straight line when viewed from the side, and wherein, from a side view, the secondary air control valve is disposed above a cylinder of the engine and directly above a cooling air intake path which extends forwardly from a front of a transmission case of the engine.