Title:
ENGINE WORK MACHINE
Document Type and Number:
Japanese Patent JP2019027381
Kind Code:
A
Abstract:
To efficiently discharge internal heat of a muffler cover while suppressing entry of a foreign matter into the muffler cover.SOLUTION: A chain saw 1 includes: an engine as a power source; a muffler 12 through which an exhaust gas discharged from the engine passes; a muffler cover 20 covering the muffler 12; a plurality of first opening parts 31 provided in an upper surface part 25 of the muffler cover 20; and a wall part 40 erecting from the upper surface part 25 of the muffler cover 20 and surrounding the first opening parts 31.SELECTED DRAWING: Figure 3
Inventors:
OTSUKA KAZUHIRO
KAMIMURA JUNICHI
ICHIHASHI NAOTO
NIWA KENJI
HAGAWA TATSUYA
ISHIBASHI NAOKI
KAMIMURA JUNICHI
ICHIHASHI NAOTO
NIWA KENJI
HAGAWA TATSUYA
ISHIBASHI NAOKI
Application Number:
JP2017148599A
Publication Date:
February 21, 2019
Filing Date:
July 31, 2017
Export Citation:
Assignee:
KOKI HOLDINGS CO LTD
International Classes:
F02B63/00; F01P5/06; F02B67/00
Attorney, Agent or Firm:
Tsutsui International Patent Office