主权项 |
1. A fuel supply structure in a vehicle engine, said fuel supply structure comprising:
an air cleaner configured to be divided in a cleaner case by a bulkhead, said bulkhead holding a cleaner element in an unpurified chamber and a purified chamber; a main fuel injection valve configured to inject fuel into an intake passage that enables communication between an intake port provided in a cylinder head of an engine body and the purified chamber; and a secondary fuel injection valve configured to inject fuel into the intake passage on an upper side relative to the main fuel injection valve in a flow direction in the intake passage, wherein one of the main fuel injection valve and the secondary fuel injection valve is housed in the purified chamber, wherein another of the main fuel injection valve and the secondary fuel injection valve is housed in the unpurified chamber, wherein a common fuel supply conduit configured to lead fuel from a fuel tank to the main fuel injection valve and the secondary fuel injection valve in common is connected to a branching connection pipe which is supported to pass through the cleaner case and the bulkhead and which is disposed in one of the unpurified chamber and the purified chamber, and wherein the branching connection pipe is connected to a main fuel injection valve side branched fuel conduit configured to lead fuel toward the main fuel injection valve side and to a secondary fuel injection valve side branched fuel conduit for leading fuel toward the secondary fuel injection valve side. |