公开(公告)号：US06941921B2

公开(公告)日：2005-09-13

申请号：US10839412

申请日：2004-05-05

申请人： Makoto Yazaki ,  Shinichi Ide ,  Mitsuaki Kubota ,  Hiroshi Yamamoto

发明人： Makoto Yazaki ,  Shinichi Ide ,  Mitsuaki Kubota ,  Hiroshi Yamamoto

IPC分类号： B63H20/24 ,  F01N13/12 ,  F02B67/00 ,  F02M35/02 ,  F02M35/04 ,  F02M35/10 ,  F02M35/16 ,  B63H21/26 ,  F01P5/06

CPC分类号： F01N13/12 ,  F01N13/005 ,  F01N13/085 ,  F01N2530/22 ,  F01N2590/021 ,  F02M35/02 ,  F02M35/04 ,  F02M35/10111 ,  F02M35/10144 ,  F02M35/168

摘要： An outboard motor includes an elastic seal lid attached to an under cover to form a hermetic seal between the under cover and an exhaust release pipe while closing an opening of the under cover from which an outlet portion of the exhaust release pipe projects outwardly. The seal lid includes a tubular seal portion projecting from at least one surface of a plate-like body of the seal lid. The tubular seal portion has annular seal lips fitted around an outer circumferential surface of the exhaust release pipe. The tubular seal portion is elastically deformable relative to the lid body to thereby take up or absorb an offset between the exhaust release pipe and the opening of the under cover produced due to cumulative manufacturing and assembling tolerances of relevant parts of the outboard motor.

摘要翻译： 舷外马达包括附接到下盖的弹性密封盖，以在关闭排气释放管的出口部分向外突出的下盖的开口的同时在下盖和排气释放管之间形成气密密封。 密封盖包括从密封盖的板状体的至少一个表面突出的管状密封部。 管状密封部分具有围绕排气释放管的外圆周表面安装的环形密封唇。 管状密封部相对于盖体弹性变形，由此吸收或吸收由于舷外马达的相关部件的累积制造和组装公差而在排气释放管和下盖的开口之间的偏移。

公开(公告)号：US06921307B2

公开(公告)日：2005-07-26

申请号：US10153249

申请日：2002-05-21

申请人： Yukinori Kashima ,  Hiroyuki Tsunekawa

发明人： Yukinori Kashima ,  Hiroyuki Tsunekawa

IPC分类号： B63H20/24 ,  B63H20/26 ,  F01N13/08 ,  F01N13/12 ,  F02B61/04 ,  F02B75/18 ,  F02B75/22 ,  B63H21/32

CPC分类号： F01N13/12 ,  B63H20/26 ,  F01N13/10 ,  F02B61/045 ,  F02B75/22 ,  F02B2075/1824

摘要： An outboard motor includes a housing unit mounted on an associated watercraft. An engine is disposed above the housing unit. The engine defines a first exhaust passage communicating with a combustion chamber of the engine. The housing unit defines a second exhaust passage communicating with the first exhaust passage. The second exhaust passage communicates with outside through at least an underwater exhaust discharge port formed at a portion of the housing unit. An air intake device communicates with either the first exhaust passage or the second exhaust passage. The air intake device includes a one-way valve that allows air to enter the first or second exhaust passage and inhibits exhaust gases from moving beyond the one-way valve.

摘要翻译： 舷外马达包括安装在相关联的船舶上的壳体单元。 发动机设置在壳体单元上方。 发动机限定了与发动机的燃烧室连通的第一排气通道。 壳体单元限定与第一排气通道连通的第二排气通道。 第二排气通道至少形成在壳体单元的一部分处的水下排气口与外部连通。 进气装置与第一排气通道或第二排气通道连通。 进气装置包括单向阀，其允许空气进入第一排气通道或第二排气通道，并且抑制废气移动超过单向阀。

公开(公告)号：US06840038B2

公开(公告)日：2005-01-11

申请号：US10228435

申请日：2002-08-27

申请人： Goichi Katayama ,  Katsumi Ochiai ,  Masanori Takahashi

发明人： Goichi Katayama ,  Katsumi Ochiai ,  Masanori Takahashi

IPC分类号： B63H20/24 ,  F01N7/00 ,  F02B27/04 ,  F02B61/04 ,  F02B75/18 ,  F02B75/20 ,  F02F1/00 ,  F02F1/42 ,  F02B27/02

CPC分类号： F01N13/12 ,  F01N13/004 ,  F01N13/10 ,  F01N2590/021 ,  F02B27/04 ,  F02B61/045 ,  F02B75/20 ,  F02B2075/1816

摘要： An exhaust system for an internal combustion engine of an outboard motor is provided. The exhaust system provides dual exhaust passages, simplifying the engine's construction and reducing manufacturing costs, while optimizing engine performance. The exhaust system includes exhaust ports having equal lengths that avoid differential pressure losses across cylinders. The arrangement of the exhaust passages enables a cowling to have a tapered aerodynamic design.

摘要翻译： 提供了一种用于舷外马达的内燃机的排气系统。 排气系统提供双排气通道，简化发动机的结构并降低制造成本，同时优化发动机性能。 排气系统包括具有相等长度的排气口，以避免汽缸之间的压差损失。 排气通道的布置使得整流罩具有锥形空气动力学设计。

公开(公告)号：US6071159A

公开(公告)日：2000-06-06

申请号：US138845

申请日：1998-08-24

申请人： Hitoshi Watanabe ,  Takahide Watanabe ,  Masanori Takahashi

发明人： Hitoshi Watanabe ,  Takahide Watanabe ,  Masanori Takahashi

IPC分类号： B63H20/24 ,  F01N13/12 ,  F02B61/04 ,  F02B67/00 ,  F02B75/02 ,  F02F1/24 ,  B63H21/32

CPC分类号： F01N13/105 ,  F02B61/045 ,  F02F1/243 ,  F01N2590/021 ,  F02B2075/027

摘要： An exhaust manifold for an outboard motor that has a vertically extending crankshaft and which exhaust manifold is formed in the cylinder head and cylinder block. The cylinder block forms the exhaust manifold by runner sections that are configured in such a way so as to facilitate the casting process by which they are formed and which provide an effective smooth flow path without requiring complex cores or patterns.

摘要翻译： 用于舷外马达的排气歧管，其具有垂直延伸的曲轴，并且在气缸盖和气缸体中形成有排气歧管。 气缸体通过流道部分形成排气歧管，流道部分以这样的方式构造，以便于它们形成的铸造过程，并且其提供有效的平滑流动路径，而不需要复杂的芯或图案。

公开(公告)号：US6033274A

公开(公告)日：2000-03-07

申请号：US152745

申请日：1998-09-14

申请人： Hiroshi Mizuguchi ,  Mitsuharu Tanaka

发明人： Hiroshi Mizuguchi ,  Mitsuharu Tanaka

IPC分类号： B63H20/24 ,  F01N13/12 ,  F02B61/04 ,  F02B75/02 ,  F02B75/16 ,  B63H21/32

CPC分类号： F01N13/14 ,  B63H20/245 ,  F01N13/004 ,  F01N13/12 ,  F02B61/045 ,  F02B75/16 ,  F01N2260/14 ,  F01N2590/021 ,  F02B2075/027

摘要： In an outboard marine drive, a primary partition made of elastomeric material is provided in a lower part of the extension case, and a drive shaft and an exhaust pipe are sealingly passed through the primary partition. Thereby, the extension case is kept out of direct contact from the exhaust gas, and is therefore prevented from excessive heating. The exhaust pipe and the drive shaft typically have a large length, and it is advantageous to support them at parts thereof near a lower end thereof. The use of elastomeric material for the primary partition is particularly advantageous because it not only can favorably insulate heat but also can accommodate any positional errors in the exhaust pipe and the drive shaft relative to the extension case. When a secondary opening is formed in an upper part of the exhaust pipe to prevent excessive build up of exhaust back pressure when the engine is idling, a secondary partition may also be provided in an upper part of the extension case.

摘要翻译： 在外侧船用驱动器中，由弹性材料制成的主隔板设置在延伸壳体的下部，驱动轴和排气管密封地穿过主隔板。 因此，延伸壳体与排气不会直接接触，因此防止了过度加热。 排气管和驱动轴通常具有大的长度，并且有利的是在靠近其下端的部分处支撑它们。 对于主分隔体使用弹性体材料是特别有利的，因为它不仅可以有利地使热绝缘，而且还可以适应排气管和驱动轴相对于延伸壳体的任何位置误差。 当在排气管的上部形成二次开口以防止发动机怠速时排气背压的过度累积，也可以在延伸壳体的上部设置次级隔板。

公开(公告)号：US6027385A

公开(公告)日：2000-02-22

申请号：US199729

申请日：1998-11-25

申请人： Goichi Katayama ,  Kazuhiko Watanabe ,  Noriyoshi Hiraoka ,  Masaki Okazaki

发明人： Goichi Katayama ,  Kazuhiko Watanabe ,  Noriyoshi Hiraoka ,  Masaki Okazaki

IPC分类号： B63H20/24 ,  F01M11/00 ,  F01N13/00 ,  F01N13/12 ,  F01P3/20 ,  F02B61/04 ,  B63H21/32

CPC分类号： F01N13/12 ,  B63H20/245 ,  F01M11/0004 ,  F01N13/004 ,  F02B61/045 ,  F01N2590/021 ,  F01P3/202 ,  F02B2275/20

摘要： A number of embodiments of four cycle outboard motors that have water cooled engines and an oil pan that is formed in the upper portion of the drive shaft housing. An exhaust pipe collects exhaust gases from an exhaust guide and delivers to a cavity that is formed in the oil pan by an interior wall thereof In many embodiments the exhaust pipe does not terminate below the lower surface of the oil pan and several arrangements are disclosed for delivering idle exhaust gases to the area between the exterior of the exhaust pipe and the interior surface of the oil pan that defines the cavity. Various arrangements are disclosed for conveying idle exhaust gases to this area and discharging them to the atmosphere through and above the water exhaust gas discharge. These arrangements incorporate a system for precluding water from entering into the engine through its exhaust system including the idle discharge.

摘要翻译： 具有水冷发动机和形成在驱动轴壳体的上部中的油盘的四个循环舷外马达的多个实施例。 排气管从排气导管收集废气并通过其内壁输送到在油盘中形成的空腔。在许多实施例中，排气管不会终止在油底壳的下表面下方，并且公开了几种布置 将惰性废气输送到排气管的外部与限定空腔的油底壳的内表面之间的区域。 公开了用于将惰性废气输送到该区域并通过和排出废水排放物排放到大气中的各种布置。 这些装置包括用于排除水通过包括空闲排放物的排气系统进入发动机的系统。

公开(公告)号：US6010380A

公开(公告)日：2000-01-04

申请号：US370432

申请日：1999-08-09

申请人： Donald L. Wollard

发明人： Donald L. Wollard

IPC分类号： B63H20/24 ,  F01N13/12 ,  F02B61/04 ,  B63H21/32

CPC分类号： F01N13/12 ,  B63H20/245 ,  F02B61/045

摘要： An exhaust system for marine propulsion units passes engine exhaust gas out through lateral holes in the lower unit casing at the level of the propeller shaft that communicate between an exhaust passage in the propeller-shaft-support unit and the ambient water. This venting mechanism discharges gas at the level of the propeller hub when the vessel is moving slowly. The vented gas enables the engine to rapidly increase its RPM s without excessive engine loading. This allows for increased acceleration and less engine damage. The system may include venting gas though the hub and out the aft end of the propeller. The system may be used with outboard engines, inboard/outdrives, and full inboards. When used with full inboards, a valve mechanism may enable diversion of an adjustable fraction of the exhaust gas through the transom. A drain hole may also be provided to drain water from the gas passage when the lower unit is out of the water.

摘要翻译： 用于船用推进单元的排气系统通过在螺旋桨轴支撑单元中的排气通道与环境水之间连通的传动轴的水平面上的下部单元壳体中的侧孔将发动机废气排出。 当容器移动缓慢时，该排气机构在螺旋桨毂的高度排放气体。 通风气体使发动机能够快速增加其RPM，而不会造成过大的发动机负载。 这样可以增加加速度并减少发动机损坏。 该系统可以包括通过轮毂排出气体并从螺旋桨的后端排出。 该系统可以与舷外发动机，内置/外部驱动器和内置的内部一起使用。 当使用完整的内部板时，阀机构可以实现排气的可调节部分通过艉板。 还可以设置排水孔，以便当下部单元离开水面时，从气体通道排出水。

公开(公告)号：US5855495A

公开(公告)日：1999-01-05

申请号：US684861

申请日：1996-07-25

申请人： Osamu Kubo

发明人： Osamu Kubo

IPC分类号： B63H20/24 ,  B63H21/32 ,  F01N3/28 ,  F01N13/12 ,  F02B61/04 ,  B63H21/38

CPC分类号： F01N13/12 ,  F01N3/2882 ,  B63B2770/00 ,  F01N2590/021 ,  F02B61/045

摘要： An exhaust gas cleaning device is provided for an outboard motor unit having an engine provided with a pair of cylinder rows arranged so as to provide a V-shape and a crank shaft arranged substantially in a perpendicular direction in a using state and having an exhaust expansion chamber on a side of a cylinder head of the engine. In the improvement, a catalyst is disposed below the engine and inside a space having substantially a triangle shape, in a plan view, defined by a central line of one of the cylinder rows, a central line of another one of the cylinder rows and a central line of the expansion exhaust chamber. The catalyst is also disposed, in an arrangement of the cylinder rows providing a V-shape having an angle of less than 90.degree., below the engine and inside a space having substantially a triangle shape, in a plan view, defined by an inner wall section of one of the cylinder rows, an inner wall section of another one of the cylinder rows and a wall section, facing the V-shape section of the cylinder rows, of the expansion exhaust chamber.

摘要翻译： 本发明提供一种排气净化装置，用于具有发动机的发动机，该发动机设置有一对气缸排，所述发动机排列成在使用状态下提供基本上沿垂直方向设置的V形和曲轴，并具有排气膨胀 在发动机气缸盖的一侧的腔室。 在改进中，催化剂设置在发动机下方和具有基本上三角形形状的空间内，在平面图中，由气缸列之一的中心线，另一个气缸行的中心线和 膨胀排气室的中心线。 在平面图中，在由内壁限定的平面图中，催化剂也被设置为提供具有小于90°的角度的V形的气缸列的布置，在发动机下方和具有基本上三角形的空间内 气缸列中的一个的另一个的内壁部分和与气缸列的V形部分相对的膨胀排气室的壁部分。

公开(公告)号：US5759073A

公开(公告)日：1998-06-02

申请号：US707523

申请日：1996-09-04

申请人： Yoshitsugu Sumino ,  Ryoji Nakahama

发明人： Yoshitsugu Sumino ,  Ryoji Nakahama

IPC分类号： B63H1/28 ,  B63H5/10 ,  B63H20/14 ,  B63H20/24 ,  B63H20/32 ,  B63H21/32 ,  F02B61/04

CPC分类号： B63H1/28 ,  B63H20/245 ,  B63H5/10 ,  F02B61/045

摘要： A propulsion system for a marine drive, which includes a pair of counter-rotating propellers, provides improved acceleration from idle or low speeds. Engine exhaust from an engine which powers the marine drive is conveyed to the water about each of the propellers. The exhaust gases aerate the water about each propeller to reduce drag resistance on each propeller. Several embodiments of the propulsion system are disclosed which convey the exhaust gases to both propellers for this purpose.

摘要翻译： 用于船用驱动器的推进系统包括一对反向旋转螺旋桨，提供从空转或低速提高的加速度。 来自对船舶驱动器供电的发动机的发动机排气被传送到围绕每个螺旋桨的水。 废气对每个螺旋桨周围的水进行充气，以减少每个螺旋桨的阻力。 公开了推进系统的几个实施例，为此目的将排气输送到两个螺旋桨。

公开(公告)号：US5743774A

公开(公告)日：1998-04-28

申请号：US690991

申请日：1996-08-01

申请人： Shigeo Adachi ,  Masaaki Yoshimura

发明人： Shigeo Adachi ,  Masaaki Yoshimura

IPC分类号： B63H20/24 ,  B63H21/38 ,  F01N3/28 ,  F01N13/12 ,  F02B61/04

CPC分类号： F01N13/12 ,  B63H20/245 ,  F01N3/28 ,  F02B61/045 ,  B63B2770/00 ,  F01N2590/021

摘要： An outboard motor is provided with an engine holder, an engine mounted to an upper portion of the engine holder, a drive shaft housing mounted to a lower portion of the engine holder and an exhaust structure connecting an exhaust inlet opening formed to an upper surface of the engine holder to an exhaust outlet opening formed to a lower surface of the engine holder, in an installed state. The exhaust structure has an exhaust port passage extending downward from the engine and communicated with the exhaust inlet opening, an exhaust tube extending downward into the drive shaft housing and an exhaust passage formed between the exhaust inlet and outlet openings, the exhaust passage extending horizontally in the engine holder and being formed with a catalyst chamber in which a catalyst is arranged horizontally.

摘要翻译： 舷外马达设置有发动机保持器，安装在发动机保持器的上部的发动机，安装到发动机保持器的下部的驱动轴壳体和连接形成于发动机保持器的上表面的排气入口的排气结构 所述发动机保持器处于安装状态下形成到所述发动机保持器的下表面的排气出口。 排气结构具有从发动机向下延伸并与排气入口连通的排气口通道，向下延伸到驱动轴壳体中的排气管和形成在排气入口和出口之间的排气通道，排气通道水平延伸 发动机保持器并且形成有催化剂室，其中催化剂水平布置。