PROBLEM TO BE SOLVED: To provide an internal combustion engine for an outboard engine for driving a ship in which an air guide system that is used for supplying cooling air and intake air for the internal combustion engine and serves as a reference is provided in an inner chamber of a cover hood surrounding the internal combustion engine.SOLUTION: An air stream Ls is caused to flow toward an inner chamber 11 of a cover hood 7 from an intake opening 9. The air stream is divided into a first partial air stream Tls1 and a second partial air stream Tls2. An air guide system 3 includes a first guide device 20 for the first partial air stream and a second guide device 21 for the second partial air stream in the cover hood 7. The first partial air stream is supplied to an intake device 22 of the internal combustion engine 2, and the second partial air stream is blown to the surface of the internal combustion engine and an auxiliary machine warmed by the operation of the internal combustion engine, by a blower 8. The air stream warmed by the surface of the internal combustion engine and the auxiliary machine is pressure-fed to the outside of the cover hood or to the atmosphere through an exhaust opening 10 provided to the cover hood as exhaust air AL by the blower 8 and a third guide device.SELECTED DRAWING: Figure 1
【課題】内燃機関を取り囲むカバーフードの内室内に、内燃機関用の冷却空気及び吸気の供給に用いられ、基準となる空気案内系が設けられた、船舶を駆動する船外機用の内燃機関を提供する。【解決手段】吸気開口9よりカバーフード7の内室11に向かって空気流Lsを流入させ、空気流は、第1の部分空気流Tls1と第2の部分空気流Tls2とに分割され、空気案内系3は、カバーフード7内に第1の部分空気流用の第1案内装置20と、第2の部分空気流用の第2案内装置21とを有し、第1部分空気流は、内燃機関2の吸気装置22に供給され、第2部分空気流は、送風機8により、内燃機関及び補機の、内燃機関の運転により温められた前記表面に吹き付けられ、内燃機関の表面及び補機により温められた空気流は、送風機8と第3の案内装置とにより排気ALとして、カバーフードに設けられた排気開口10を介してカバーフードの外側あるいは大気中に圧送される。【選択図】図1
OUTBOARD ENGINE PROVIDED WITH INTERNAL COMBUSTION ENGINE
内燃機関を備える船外機
2017-11-02
Patent
Electronic Resource
Japanese
IPC: | F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF |
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