INTERNAL COMBUSTION ENGINE

• Main Author: ENJOJI NAOYUKI
• Format: Patent
• Language: English; Japanese
• Published: 23.06.2016
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

PROBLEM TO BE SOLVED: To increase options of usable gas fuel in an internal combustion engine without increasing the size.SOLUTION: An internal combustion engine includes: an internal combustion engine body 25 having an intake passage 23A; and an attachment 10 detachably connected to the internal combustion engine body. The internal combustion engine body includes: an injector 39 for injecting liquid fuel to the intake passage; a mixer 78 for mixing gas fuel with air; and an introduction device 76 for introducing air-fuel mixture supplied from the mixer to the intake passage. The attachment includes: a plurality of upstream side connection devices 51, 52 connectable to a gas supply source; a downstream side connection device 53 connectable to the mixer side; a fuel passage 54 formed by passages extending from the upstream side connection devices, respectively, then joining together and leading to the downstream side connection device; and a change-over valve 55 provided in the fuel passage and switching the upstream side connection devices communicated with the downstream side connection device.SELECTED DRAWING: Figure 1 【課題】 内燃機関において、大型化を招くことなく、利用可能な気体燃料の選択肢を増やす。【解決手段】 吸気通路２３Ａを備えた内燃機関本体２５と、内燃機関本体に対して着脱可能に接続されるアタッチメント１０とを有し、内燃機関本体は、吸気通路に液体燃料を噴射するインジェクタ３９と、気体燃料と空気とを混合するミキサー７８と、ミキサーから供給される混合気を吸気通路に導入する導入装置７６とを有し、アタッチメントは、ガス供給源と接続可能な複数の上流側接続器５１、５２と、ミキサー側と接続可能な下流側接続器５３と、上流側接続器のそれぞれから延び、合流して下流側接続器に到る燃料通路５４と、燃料通路に設けられ、下流側接続器と連通する上流側接続器を切り換える切換弁５５とを有することを特徴とする。【選択図】 図１