| 摘要 |
PURPOSE:To simplify and facilitate assembly and disassembly work of an air cleaner, by opening the point end part of a secondary air extraction pipe internally to a cleaning chamber of a cleaner case and connecting a secondary air supply pipe to an outer and externally of the cleaner case. CONSTITUTION:A secondary air supply pipe 30 is arranged through the upper of an engine main unit and extended to the rear then one end of a secondary air extraction pipe 31 is connected to the free end of the pipe 30. An elastic pipe 31b of a rubber tube or the like is connected to the point end of the secondary air extraction pipe. Then the pipe 31 is inserted into a cleaner case 32 through an insertion port 33 drilled to the upper wall of the case 32 and the point end is opened internally to a cleaned air chamber (a) of the cleaner case. The inside of the case 32 is divided into an uncleaned air chamber (b) opened with a flow inlet 37 and the chamber (a) opened with a flow outlet 38, and a cleaner element 39 is provided in a communicated part of these both chambers (a), (b). |
