RESIDUAL FUEL QUANTITY DETECTION DEVICE FOR VEHICULAR FUEL TANK

• Main Authors: ONO KAZUHIKO, HASHIMOTO KUMI, MAEDA SHINICHI, KAIDA YOHEI
• Format: Patent
• Language: English; Japanese
• Published: 11.04.2016
• Subjects: ACCESSORIES PECULIAR TO CYCLES AND NOT OTHERWISE PROVIDED FOR,e.g. ARTICLE CARRIERS, CYCLE PROTECTORS; BLASTING; COMBUSTION ENGINES; CYCLE SADDLES OR SEATS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; LIGHTING; MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; MECHANICAL ENGINEERING; METERING BY VOLUME; PERFORMING OPERATIONS; PHYSICS; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TESTING; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To detect a liquid surface level of fuel and residual fuel quantity in a vehicular fuel tank at a low cost.SOLUTION: A residual fuel quantity detection device for a fuel tank 14 has float type liquid surface detecting means 84 for detecting a liquid surface level of fuel in the fuel tank 14 on the basis of rotations of an arm 106 to which a float 82 is attached; thermistor type liquid surface detecting means 88 for detecting the liquid surface level on the basis of changes in a resistance value of a thermistor 86; and a residual fuel quantity detecting means for detecting residual fuel quantity in the fuel tank 14 on the basis of each detection result. The thermistor 86 is attached to a tip end side of the arm 106 than the float 82.SELECTED DRAWING: Figure 3 【課題】低コストで車両用燃料タンク内の燃料の液面高さ及び残燃料量を検出する。【解決手段】燃料タンク１４の残燃料量検出装置は、フロート８２が取り付けられたアーム１０６の回転に基づいて燃料タンク１４内の燃料の液面高さを検出するフロート式液面検出手段８４と、サーミスタ８６の抵抗値の変化に基づいて液面高さを検出するサーミスタ式液面検出手段８８と、各検出結果に基づいて燃料タンク１４内の残燃料量を検出する残燃料量検出手段とを有する。サーミスタ８６は、フロート８２よりもアーム１０６の先端側に取り付けられている。【選択図】図３