Exhaust system
AssigneeYanmar Holdings Co., Ltd.
InventorsKazuhisa Ito, Yoshinori Fukui, Shunji Hamaoka, Hiroshi Uehara, Masato Nakai
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Abstract
An exhaust system according to an aspect of the present disclosure includes: an exhaust duct provided above a marine internal combustion engine installed in an engine room of a ship; and a suction fan that sucks a fuel leakage gas leaking from the marine internal combustion engine into the inside of the exhaust duct from an engine upper unit side of the marine internal combustion engine. The exhaust duct exhausts the fuel leakage gas sucked by the suction fan to the outside of the engine.
Claims16
An exhaust system comprising:
- an exhaust duct including a single exhaust hood that is provided directly above a marine internal combustion engine installed in an engine room of a ship;
- and
- a suction fan configured to suck a fuel leakage gas leaking from the marine internal combustion engine into an inside of the exhaust duct, via the single exhaust hood, from an engine upper unit side of the marine internal combustion engine, and
- wherein the exhaust duct is configured to exhaust the fuel leakage gas sucked by the suction fan to an outside of the engine room.
An exhaust system comprising an exhaust duct provided above a marine internal combustion engine installed in an engine room of a ship, the marine internal combustion engine including:
- an upper passage provided along the engine upper unit,
- a fence erected along an outer edge of the upper passage;
- an exhaust hood that is configured to open larger than the exhaust duct and communicate the engine upper unit with an inside of the exhaust duct;
- and
- a suction fan configured to suck a fuel leakage gas leaking from the marine internal combustion engine into an inside of the exhaust duct from an engine upper unit side of the marine internal combustion engine,
- wherein the exhaust duct is configured to exhaust the fuel leakage gas sucked by the suction fan to an outside of the engine room,
- wherein a cylinder of the marine internal combustion engine is included in the engine upper unit,
- wherein the exhaust hood is configured to cover at least an upper side of the cylinder, and
- wherein the exhaust hood is configured to cover an upper side of an inner region surrounded by the fence.
An exhaust system comprising an exhaust duct provided above a marine internal combustion engine installed in an engine room of a ship, the engine room further including a supercharger that is configured to suck air from an outside and compress the air, and the marine internal combustion engine including:
- an upper passage provided along the engine upper unit,
- a fence erected along an outer edge of the upper passage;
- an exhaust hood that is configured to open larger than the exhaust duct and communicate the engine upper unit with an inside of the exhaust duct;
- and
- a suction fan configured to suck a fuel leakage gas leaking from the marine internal combustion engine into an inside of the exhaust duct from an engine upper unit side of the marine internal combustion engine,
- wherein the exhaust duct is configured to exhaust the fuel leakage gas sucked by the suction fan to an outside of the engine room,
- wherein a cylinder of the marine internal combustion engine is included in the engine upper unit,
- wherein the exhaust hood is configured to cover at least an upper side of the cylinder, and
- wherein the exhaust hood is configured to cover an upper side of a region excluding the supercharger in an inner region surrounded by the fence.
Dependencies are inferred from the claim text.