Title:
ガス燃料内燃機関
Document Type and Number:
Japanese Patent JP4709277
Kind Code:
B2
Abstract:
A two-stroke gas fuel internal combustion engine of crankcase compression-type comprises a fuel feed passage (4c) so formed that its downstream end opening (4d) is positioned on a combustion chamber (18), a poppet valve type fuel feed valve (20) in which a valve stem (20a) is formed on an umbrella-like valve plate (20b) for opening and closing the downstream end opening (4d), a valve guide member (25) for slidably guiding the valve stem (20a) of the fuel feed valve (20), and a leaked fuel introduction passage (60) for introducing the gas fuel entered into the clearance (d) between the valve guide member (25) and the valve stem (20a) into a discharge port (3d').
Inventors:
Ryuichi Yamashita
Hiroshi Matsumoto
Hiroshi Matsumoto
Application Number:
JP2008513273A
Publication Date:
June 22, 2011
Filing Date:
April 26, 2007
Export Citation:
Assignee:
YAMAHA HATSUDOKI KABUSHIKI KAISHA
International Classes:
F02M21/02; F02B25/16
Domestic Patent References:
| JPH05231199A | 1993-09-07 | |||
| JP2003003925A | 2003-01-08 |
Attorney, Agent or Firm:
Tsutomu Shimoichi