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    • 7. 发明专利
    • Marine propeller
    • 海洋螺旋桨
    • JP2010031658A
    • 2010-02-12
    • JP2008191633
    • 2008-07-25
    • Yamaha Motor Co Ltdヤマハ発動機株式会社
    • HIROSE HIDEKAZU
    • F02M35/10B63H20/00F02B67/00F02M35/12F02M35/16
    • F02D9/10F02B31/04F02M35/10032F02M35/10222F02M35/10295F02M35/1211F02M35/1216F02M35/167Y02T10/146
    • PROBLEM TO BE SOLVED: To provide a marine propeller capable of suppressing the production of whistle noise when including an intake throttle.
      SOLUTION: The outboard motor 1 includes an engine body 20, an air passage 32a supplying air to the engine body 20 and including a by-pass port 323 in the inner surface thereof, and an intake throttle 311 arranged on the upstream side to the by-pass port 323 in the air passage 32a, provided with a ventilation hole 312a therein and provided so as to control the amount of air flowing into the engine body 20 through the air passage 32a. The ventilation hole 312a in the intake throttle 311 is situated in the vicinity of the inner surface of the air passage 32a and in a position corresponding to the position of the by-pass hole 323 provided in the air passage 32a.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种能够在包括进气节气门时抑制哨声产生的船用螺旋桨。 解决方案:舷外马达1包括发动机主体20,向发动机主体20供应空气并且在其内表面中包括旁通端口323的空气通道32a和布置在上游侧的进气节流阀311 通过空气通道32a中的旁通口323,在其中设置有通风孔312a,并设置为控制通过空气通道32a流入发动机主体20的空气量。 进气节流阀311中的通风孔312a位于空气通道32a的内表面附近并且位于与设置在空气通道32a中的旁通孔323的位置相对应的位置。 版权所有(C)2010,JPO&INPIT
    • 9. 发明专利
    • Swirl formation device for engine
    • 发动机SWIRL形成装置
    • JP2005248818A
    • 2005-09-15
    • JP2004059962
    • 2004-03-04
    • Kawasaki Heavy Ind Ltd川崎重工業株式会社
    • SUZUKI KOZOFUKAMI YOJIKUJI YASUHIRO
    • F02B31/00F02B31/02F02M35/10
    • F02B31/04F02M23/04F02M35/10262Y02T10/146
    • PROBLEM TO BE SOLVED: To provide a swirl formation device for an engine capable of forming effective swirl strongly and largely turning in a combustion chamber.
      SOLUTION: The swirl formation device for the engine is provided with an auxiliary passage 24 leading auxiliary gas composed of air or air fuel mixture into the combustion chamber 9 from adjacent of an upstream of an intake port 70 opened and closed by an intake valve 10. A tip opening 25 of the auxiliary passage 24 is positioned at a part on an exhaust port 80 side in the intake port 70, and leads the auxiliary gas in a direction different from a normal line direction N of a cylinder inner circumference surface 3a in a view from an axial direction of the cylinder 3, and forms swirl S along the inner circumference surface 3a of the cylinder 3.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种用于能够强烈地形成有效涡流并大大转动燃烧室的发动机的涡旋形成装置。 解决方案:用于发动机的涡旋形成装置设置有辅助通道24,辅助通道24将由空气或空气燃料混合物组成的辅助气体从由进气口开闭的进气口70的上游的邻近处引入燃烧室9 辅助通道24的尖端开口25位于进气口70中的排气口80侧的一部分上,并且引导辅助气体沿与气缸内周面的法线方向N不同的方向 3a,从气缸3的轴向观察,沿气缸3的内周面3a形成涡流S.(C)2005,JPO&NCIPI