FUEL SUPPLY DEVICE

• Main Authors: EGUCHI KEISUKE, KANAMARU SHIGEKI, YAMAMOTO KAZUYUKI, KOMORI TOSHIO
• Format: Patent
• Language: English; Japanese
• Published: 13.02.2020
• Subjects: BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

To provide a fuel supply device capable of suppressing temperature rise of fuel discharged to the outside and also securing strength of a fuel passage to which heat is transferred from a control circuit board, by cooling the control circuit board.SOLUTION: A fuel supply device 1 is configured such that an upstream portion 35A of a return passage and a discharge pipe 34 are arranged on the other side of a lid 31; the inner peripheral surface of the upstream portion 35A of the return passage and the inner peripheral surface of the discharge pipe 34 extend straight with a connection part 37 interposed therebetween; and a control circuit board part 80 is connected to the upstream portion 35A of the return passage so as to be able to conduct heat.SELECTED DRAWING: Figure 3 【課題】制御回路基板を冷却することにより、外部に吐出される燃料の温度が上昇することを抑制すると共に、制御回路基板から伝熱される燃料通路の強度を確保できる燃料供給装置を提供する。【解決手段】リターン通路の上流側部分３５Ａ及び吐出パイプ３４は、蓋部３１の他方側に配置され、リターン通路の上流側部分３５Ａの内周面及び吐出パイプ３４の内周面は、接続部３７を挟んで一直線に延び、制御回路基板部８０は、リターン通路の上流側部分３５Ａに伝熱可能に接続されている燃料供給装置１。【選択図】図３