Patent ID: 6340322
Filing Date: 2002-01-22
Classification: F01N,F02B,F02M

Abstract:
A structure of mounting of an exhaust gas sampling pipe in an outboard engine system in which a passage defining member having a passage wall defining an exhaust gas passage for guiding an exhaust gas from an engine is provided at an outer wall thereof with a recess and a seal surface surrounding said recess; a fluid passage isolated from the exhaust gas passage is defined between said recess and a lid member which is mounted to the outer wall of said passage defining member with a seal member interposed between the lid member and said seal surface; and an exhaust gas sampling pipe is inserted into said exhaust gas passage through an insertion bore which is provided in said passage defining member to open into said seal surface, wherein said seal member is formed to surround an opening at an outer end of said insertion bore, and said exhaust gas sampling pipe is passed through and gas-tightly fixed in said lid member.