OIL PASSAGE STRUCTURE OF INTERNAL COMBUSTION ENGINE

To provide an oil passage structure of an internal combustion engine capable of efficiently supplying engine oil to a generator and a water pump efficiently, even when concentrically connecting the generator and the water pump to a crankshaft.SOLUTION: An internal combustion engine 2 comprises a gen...

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Bibliographic Details
Main Authors YOKOYA HITOSHI, NUKADA YOSHITAKA
Format Patent
LanguageEnglish
Japanese
Published 16.10.2023
Subjects
BLASTING
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
COOLING OF INTERNAL-COMBUSTION ENGINES
COOLING OF MACHINES OR ENGINES IN GENERAL
CRANKCASE VENTILATING
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
ENGINE PLANTS IN GENERAL
GENERATION
HEATING
LIGHTING
LUBRICATING INTERNAL COMBUSTION ENGINES
LUBRICATING OF MACHINES OR ENGINES IN GENERAL
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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Summary:To provide an oil passage structure of an internal combustion engine capable of efficiently supplying engine oil to a generator and a water pump efficiently, even when concentrically connecting the generator and the water pump to a crankshaft.SOLUTION: An internal combustion engine 2 comprises a generator 6 provided on one end 21a side of a crankshaft 21, and a generator cover 60 that covers the generator and is fixed to a crankcase 20. A protective cover 70 is provided on the outside of the generator cover. A water pump 90 is attached to an outer surface of the protective cover. A drive shaft 91 is coaxially connected to one end of the crankshaft. The generator cover comprises oil passages 44, 45 that supply engine oil from the crankcase to the generator, and a generator cover side guide part 47 that allows engine oil collected from a generator housing space 62 for housing the generator to flow out to the protective cover 70 side. The protective cover comprises a protective cover side guide part 48 that guides and supplies engine oil flowing out from the generator cover side guide part to the drive shaft of the water pump.SELECTED DRAWING: Figure 5 【課題】クランク軸に発電機とウォータポンプを同心に接続した場合においても、エンジンオイルを効率よく発電機とウォータポンプに供給できる内燃機関の油路構造。【解決手段】クランク軸21の一端21ａ側に設けられた発電機６と、発電機を覆いクランクケース20に固定される発電機カバー60とを備えた内燃機関２において、発電機カバーの外側に保護カバー70を有し、保護カバーの外面にウォータポンプ90が取付けられ、その駆動軸91はクランク軸の一端と同軸心に接続され、発電機カバーは、エンジンオイルをクランクケースから供給され発電機に供給する油路44、45と、発電機を収容する発電機収容空間62から捕集したエンジンオイルを保護カバー70側へ流出する発電機カバー側ガイド部47を備え、保護カバーは、発電機カバー側ガイド部から流出したエンジンオイルをウォータポンプの駆動軸へ導き供給する保護カバー側ガイド部48を備えた。【選択図】図５
Bibliography:Application Number: JP20220059879