发明名称 V-TYPE ENGINE, OUTBOARD ENGINE AND MARINE VESSEL
摘要 PROBLEM TO BE SOLVED: To increase an output of V-type engine and restrict a large-sized formation of V-type engine in its width direction.SOLUTION: A V-type engine comprises two exhaust manifolds 53, 54 connected to two cylinder banks. First exhaust ports and second exhaust ports which are provided on the respective cylinder banks are arranged inside a V-line. The exhaust manifolds 53, 54 comprise N branch pipes 55, 57 (N is an integer equal to or more than 2) and collecting pipes 56, 58, respectively. The N branch pipes 55, 57 are connected to N exhaust ports including at least one first exhaust port and at least one second exhaust port. The collecting pipes 56, 58 are arranged at the rear part of N cylinders and they extend from the height of the upper-most arranged cylinder of the N cylinders to the height of the lower-most arranged cylinder of the N cylinders.
申请公布号 JP2014163286(A) 申请公布日期 2014.09.08
申请号 JP20130035066 申请日期 2013.02.25
申请人 YAMAHA MOTOR CO LTD 发明人 OCHIAI KATSUMI;NATSUME KOHEI;HOSHIYA SHINICHI
分类号 F01N13/10;B63H20/14;B63H20/24 主分类号 F01N13/10
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