TANK COVER UNIT AND FUEL SUPPLY SYSTEM

• Main Authors: OSADA KIYOSHI, FUKUOKA SHINGO, LEE SANG-HOON
• Format: Patent
• Language: English; Japanese
• Published: 08.02.2016
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; COMBUSTION ENGINES; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a tank cover unit for avoiding trouble in a driving circuit.SOLUTION: A circuit casing part 12 integrally formed at an upper part of a cover main body part 11 so as to make a partitioning against a protective space 120 for a driving circuit 13 comprises a bottom part 121 forming an aeration space 124 between itself and the cover main body part 11, a side part 122 enclosing the protective space 120 above the bottom part 121 and an aeration hole 126 passing between the protective space 120 and an outer space 3 at the side part 122. A terminal 15 is set in such a way that its intermediate part 152 is buried at the bottom part 121 to cause itself to extend between a fuel pump and the driving circuit 13 through the bottom part 121 and an interface 121d between the bottom part 121 and the intermediate part 152 is exposed at the protective space 120 at an upper location than the aeration hole 126. A liquid protective aeration film 19 is installed at an outer surface 122b of the side part 122 to cover the aeration hole 126 and allow fuel vapor to discharge from the aeration hole 126 into the outer space 3 and in turn restrict immersion of liquid from the outer space 3 into the aeration hole 126.SELECTED DRAWING: Figure 6 【課題】駆動回路の故障を回避するタンク蓋ユニットの提供。【解決手段】蓋本体部１１の上方に一体成形され、駆動回路１３の保護空間１２０を仕切る回路筐体部１２は、通気空間１２４を蓋本体部１１との間にあける底部１２１と、底部１２１の上方にて保護空間１２０を囲む側部１２２と、側部１２２にて保護空間１２０と外部空間３との間を貫通する通気孔１２６とを有する。ターミナル１５は、底部１２１を経由して燃料ポンプと駆動回路１３との間を延伸するように中間部１５２が底部１２１に埋設され、底部１２１と中間部１５２との界面１２１ｄが通気孔１２６よりも上方にて保護空間１２０に露出する。防液通気膜１９は、側部１２２の外側面１２２ｂに装着されて通気孔１２６を覆うことで、通気孔１２６から外部空間３への燃料蒸気排出を許容し且つ外部空間３から通気孔１２６への液体侵入を規制する。【選択図】図６