To avoid the mixing of vapor into supplied fuel without causing a cost increase and size enlargement, in a fuel supply device of an outboard engine.SOLUTION: A fuel supply device 1A of an outboard engine provided in the middle of a fuel passage which arrives at an engine from a fuel tank comprises, in a housing which is constituted of a housing main body 2A forming a fuel storage tank 2a which also serves as a reservoir tank and a lid body 3A for covering an opening part of the housing main body 2A: a fuel pump 4 for pressure-sending stored fuel; and a cooling pipe 20 forming a cooling water passage in the fuel storage tank 2a. The device also has a function for cooling the fuel which is stored in the fuel storage tank 2a by using the cooling water introduced into the cooling water passage from the outside. The cooling pipe 20 is formed by bending a metal pipe into an inverted U-shape on the same plane, and both end sides thereof are connected to a cooling water inlet joint 210a and a cooling water outlet joint 210b which are formed at a bottom face side of the housing main body 2A.SELECTED DRAWING: Figure 1
【課題】船外機用の燃料供給装置について、コストアップやサイズアップを招くことなく、供給する燃料にベーパーが混入するのを回避できるようにする。【解決手段】燃料タンクからエンジンに至る燃料通路の途中に配設され、リザーバタンクを兼ねる燃料貯留槽2aを形成したハウジング本体2Aとハウジング本体2Aの開口部を覆う蓋体3Aとで構成されたハウジングの内部に、貯留した燃料を圧送する燃料ポンプ4と燃料貯留槽2a内で冷却水通路を形成する冷却管20を備えており、外部から冷却水通路に導入した冷却水で燃料貯留槽2aに貯留した燃料を冷却する機能を有した船外機用燃料供給装置1Aであって、その冷却管20が、金属管を同一平面上で屈曲して逆U字状に形成してなり、その両端側がハウジング本体2A底面側に形成した冷却水入口継手210aと冷却水出口継手210bに各々接続されていることを特徴とするものとした。【選択図】図1
FUEL SUPPLY DEVICE OF OUTBOARD ENGINE
船外機用エンジンの燃料供給装置
2022-07-19
Patent
Electronic Resource
Japanese
Outboard engine lifting/lowering device and outboard engine
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