WORK VEHICLE MOUNTED WITH ENGINE

• Main Authors: FUJII YUTO, ASAHARA MASAHITO, YOSHIDA MASAYA, UEMOTO KENSUKE, TOGOSHI YOSHIKAZU
• Format: Patent
• Language: English; Japanese
• Published: 29.06.2017
• 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; 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 fuel system in which fuel is uniformly supplied to an engine from a plurality of fuel tanks, and in which residual amounts of fuels in the plurality of fuel tanks become the same as far as possible.SOLUTION: A fuel supply path 67 is formed, which is composed of: a first fuel supply path 671 connecting a first fuel tank 61 and a merging portion 65; a second fuel supply path 672 connecting a second fuel tank 62 and the merging portion 65; and a common supply path 670 connecting the merging portion 65 and an engine 3. In the common supply path 670, a fuel pump 60 for supplying a fuel to the engine 3 is provided. Check valves 63 and 64 opened according to differential pressure between fuel tank side pressure and merging portion side pressure are interposed between the first fuel supply path 671 and the second fuel supply path 672. A communication channel 70 is formed, which communicates a top portion space S1 of the first fuel tank 61 and a top portion space S2 of the second fuel tank 62.SELECTED DRAWING: Figure 1 【課題】複数の燃料タンクから均等に燃料がエンジンに供給され、複数の燃料タンクの残留燃料ができるだけ同じとなる燃料システムの提供。【解決手段】第１燃料タンク６１と合流部６５とをつなぐ第１燃料供給路６７１、第２燃料タンク６２と合流部６５とをつなぐ第２燃料供給路６７２、及び合流部６５とエンジン３とをつなぐ共通供給路６７０からなる燃料供給路６７が形成される。共通供給路６７０には、燃料をエンジン３に供給する燃料ポンプ６０が設けられる。燃料タンク側圧力と合流部側圧力との差圧に応じて開弁するチェックバルブ６３，６４が第１燃料供給路６７１と第２燃料供給路６７２に介装される。第１燃料タンク６１の頂部空間Ｓ１と第２燃料タンク６２の頂部空間Ｓ２とを連通する連通流路７０が形成されている。【選択図】図１