公开(公告)号：US20030148679A1

公开(公告)日：2003-08-07

申请号：US10357535

申请日：2003-02-03

发明人： Yoshimoto Matsuda

IPC分类号： B63H021/32

CPC分类号： B63H11/10 ,  B63B35/731 ,  B63H21/14 ,  B63H21/24 ,  B63H21/383 ,  B63H21/386 ,  F01N3/046 ,  F01N2240/02 ,  F01P3/00 ,  F01P3/207 ,  F01P2003/005 ,  F01P2003/021 ,  F01P2003/024 ,  F01P2003/027 ,  F01P2050/06 ,  F01P2060/04 ,  F01P2060/16 ,  Y02T10/20

摘要： Disclosed is a small watercraft having an engine cooling system which can lessen variation in temperature and temperature distribution of the engine between the time when the engine is starting and when the watercraft is continuously driving with a throttle in a fully open or almost fully open position. The small watercraft adapted to be propelled by a water jet pump driven by an engine, comprises: a first cooling system for cooling a cylinder block of the engine, the first cooling system having an indirect cooling structure; and a second cooling system for cooling an exhaust system, the second cooling system having a direct cooling structure.

摘要翻译： 公开了一种具有发动机冷却系统的小型船舶，其可以在发动机起动时和当船舶在全开或几乎完全打开位置之间的节气门连续行驶时减小发动机的温度和温度分布的变化。 适用于由发动机驱动的水喷射泵推进的小型船舶包括：用于冷却发动机气缸体的第一冷却系统，第一冷却系统具有间接冷却结构; 以及用于冷却排气系统的第二冷却系统，所述第二冷却系统具有直接冷却结构。

公开(公告)号：US20030077957A1

公开(公告)日：2003-04-24

申请号：US10270927

申请日：2002-10-11

发明人： Hidenori Atsusawa

IPC分类号： B63H021/32

CPC分类号： B63B35/731 ,  B63H21/32

摘要： A water preclusion device for a watercraft with an internal combustion engine for inhibiting the intrusion of water upstream into an exhaust system. The water preclusion device includes a valve controlled by exhaust gas pressure.

摘要翻译： 一种用于具有内燃机的船舶的防水装置，用于抑制上游到排气系统中的水侵入。 排水装置包括由废气压力控制的阀。

公开(公告)号：US20020160672A1

公开(公告)日：2002-10-31

申请号：US10078198

申请日：2002-02-14

发明人： Toshiyuki Hattori ,  Masayoshi Nanami

IPC分类号： B63H021/32

CPC分类号： F02M35/10039 ,  B63B35/731 ,  B63H21/24 ,  B63H21/32 ,  F02B61/045 ,  F02M35/112 ,  F02M35/167

摘要： A small watercraft hull defines a vertically oriented, central longitudinal plane of the watercraft. The hull has an engine compartment with an internal combustion engine disposed therein. The engine has an engine body comprising a crankcase, a cylinder block and a cylinder head and includes at least one cylinder bore defining a cylinder axis. An air induction system is provided to guide air into a combustion chamber of the engine. The air induction system includes a plenum chamber. An exhaust system is also provided for guiding exhaust gases from the combustion chamber to the atmosphere. The exhaust system includes an exhaust conduit. The cylinder axis is canted with respect to the central plane and the exhaust conduit is disposed substantially on a side of the central plane to which the cylinder axis is canted. The plenum chamber is positioned on a side of the central plane opposite the exhaust conduit and extends substantially vertically from a position proximate the crankcase to a position proximate the cylinder head.

摘要翻译： 一艘小型船只船体定义了船舶垂直取向的中心纵向平面。 船体具有设置在其中的内燃机的发动机舱。 发动机具有包括曲轴箱，气缸体和气缸盖的发动机主体，并且包括限定气缸轴线的至少一个气缸孔。 提供一个空气感应系统以将空气引导到发动机的燃烧室中。 空气感应系统包括一个增压室。 还提供了一种用于将废气从燃烧室引导到大气的排气系统。 排气系统包括排气导管。 气缸轴线相对于中心平面倾斜，并且排气导管基本上设置在气缸轴线倾斜的中心平面的一侧。 增压室位于与排气管道相对的中心平面的一侧，并且从靠近曲轴箱的位置基本垂直地延伸到靠近气缸盖的位置。

公开(公告)号：US20020090867A1

公开(公告)日：2002-07-11

申请号：US10098708

申请日：2002-03-15

发明人： Paul W. Roos

IPC分类号： B63H021/32

CPC分类号： B63H21/32 ,  B63H11/08 ,  F01N13/12 ,  F01N2590/02

摘要： A marine jet drive having through-the-nozzle engine exhaust, thereby to avoid or minimize noxious odors, noise and heat problems. A method for improving marine jet drive engine performance, including producing suction to facilitate exhaust flow from the engine by discharging exhaust within the water outflow in the nozzle; exhaust is most preferably discharged at a position flush with the position of water discharge.

摘要翻译： 具有通过喷嘴引擎排气的海洋喷射驱动器，从而避免或最小化有害气味，噪音和热量问题。 一种用于改善海上喷气机驱动发动机性能的方法，包括通过排出喷嘴内的水流出中的排气产生吸力以便于从发动机排出的流体; 排气最优选在与排水位置齐平的位置处排出。

公开(公告)号：US20030143903A1

公开(公告)日：2003-07-31

申请号：US10221257

申请日：2002-12-16

发明人： Hans Kurt Hellman

IPC分类号： B63H021/32

CPC分类号： F01N13/004 ,  B63H21/32 ,  F01N13/085 ,  F01N2590/02

摘要： The invention relates to an exhaust system for watercraft, having an exhaust pipe which leads from an engine system to an exhaust gas outlet, wherein a through-flow means for degrading the energy of seawater gushing through the exhaust gas outlet into said exhaust pipe is provided in the section of said exhaust pipe preceding the exhaust gas outlet, and that at least one settling basin is provided in the area of said means for degrading the energy of seawater, or upstream thereof in the direction of exhaust gas flow, and a drainage conduit leads from the deepest point of the settling basin into the surroundings of the vessel.

摘要翻译： 本发明涉及一种用于船舶的排气系统，其具有从发动机系统引导到废气出口的排气管，其中设置有用于降低通过废气出口涌入所述排气管的海水能量的通流装置 在废气出口之前的所述排气管的截面中，并且在所述用于降低海水能量或排气流动方向上游的装置的区域中设置至少一个沉降池，以及排水管 从沉淀盆地的最深处到达船只周围。

公开(公告)号：US20020094732A1

公开(公告)日：2002-07-18

申请号：US09844507

申请日：2001-04-27

发明人： Tatsuya Yoshida ,  Tadatsugu Yamamura

IPC分类号： B63H021/32

CPC分类号： F01N13/12 ,  B63B35/731 ,  B63H21/32 ,  F01N3/28 ,  F01N13/004 ,  F01N2590/02 ,  F01N2590/022 ,  F02B61/045

摘要： An exhaust system for a watercraft includes a water trap arranged on a first side of a hull tunnel, a discharge port arranged on a second side of the hull tunnel, and a chamber branched from and communicating with an exhaust passage connecting the watertrap with the discharge port.

摘要翻译： 一种用于船舶的排气系统包括布置在船体隧道第一侧的排水口，设置在船体隧道第二侧的排放口，以及与排水通道分流并连通的室，该排气通道将捕集器与排放口连接 港口。

公开(公告)号：US20020061689A1

公开(公告)日：2002-05-23

申请号：US09990217

申请日：2001-11-21

发明人： Masaru Tamaki

IPC分类号： B63H021/32

CPC分类号： F01N13/12 ,  B63H11/08 ,  B63H21/24 ,  B63H21/32 ,  B63H2011/081 ,  F01N13/004 ,  F01N2590/022

摘要： A small watercraft comprises a hull having a longitudinal axis and an engine disposed within the hull. A tunnel is defined on an underside of the hull. A propulsion is driven by the engine and includes a jet pump unit disposed at least partially within the tunnel. An exhaust system communicates with the engine and extends to and terminates at an exhaust discharge outlet to discharge exhaust gases generated by the engine. The exhaust discharge outlet is located along the tunnel such that the exhaust gases are discharged into a space defined between the tunnel and the jet pump unit. An exhaust opening is located downstream of the exhaust discharge outlet and is defined between the tunnel and the jet pump unit. A barrier is located in the exhaust opening so as to form an exhaust sub-chamber in the tunnel upstream of the barrier.

摘要翻译： 小型船只包括具有纵向轴线的船体和设置在船体内的发动机。 隧道位于船体的下侧。 推进器由发动机驱动并且包括至少部分地设置在隧道内的喷射泵单元。 排气系统与发动机连通并延伸到排气出口并终止于排气出口，以排放发动机产生的废气。 废气排放口沿着隧道定位，使得废气被排放到在隧道和喷射泵单元之间限定的空间中。 排气口位于排气出口的下游，并且限定在隧道和喷射泵单元之间。 阻挡件位于排气口中，以便在阻挡层上游​​的隧道中形成排气副室。

公开(公告)号：US20010015164A1

公开(公告)日：2001-08-23

申请号：US09404238

申请日：1999-09-23

发明人： TOSHIYUKI HATTORI

IPC分类号： B63H021/10 ,  B63H021/32

CPC分类号： F02M35/10013 ,  B63B35/731 ,  B63H21/14 ,  F02B61/045 ,  F02B75/20 ,  F02B2075/027 ,  F02B2075/1812 ,  F02B2275/18 ,  F02M35/10255 ,  F02M35/10301 ,  F02M35/112 ,  F02M35/1233 ,  F02M35/168

摘要： An improved air-intake system and engine layout for use on a small watercraft provides for a lower temperature, vapor fuel/air charge with less water vapor content. The watercraft includes an engine-air intake system incorporating an air-intake box which inhibits the engine from intaking water present in the engine compartment, especially during high speed maneuvering. An extended flywheel case is also provided that prevents water located in the engine compartment from being sprayed by moving parts directly into the air-intake box. Furthermore, the improved air-intake system of the present invention incorporates external air-intake valves that prevent water from entering the engine and propulsion compartments through the air intakes while the watercraft is in an inverted.

摘要翻译： 用于小型船舶的改进的进气系统和发动机布局提供较低温度的蒸汽燃料/空气装料，具有较少的水蒸汽含量。 该船舶包括一个引擎空气进气系统，其中装有进气箱，该进气箱禁止发动机进入发动机舱内的水，特别是在高速操纵时。 还提供了一种扩展的飞轮壳体，其防止位于发动机室中的水通过将部件直接移动到进气箱中而喷射。 此外，本发明的改进的进气系统包括外部进气阀，其在船舶倒立时防止水通过进气口进入发动机和推进室。

公开(公告)号：US20040048527A1

公开(公告)日：2004-03-11

申请号：US10602656

申请日：2003-06-25

发明人： Noboru Yokoya

IPC分类号： B63H021/32

CPC分类号： F01N13/12 ,  B63B35/731 ,  B63H21/32 ,  F01N1/02 ,  F01N3/04 ,  F01N13/004 ,  F01N13/085 ,  F01N13/1816 ,  F01N13/1855 ,  F01N2240/06 ,  F01N2240/20 ,  F01N2450/24 ,  F01N2470/12 ,  F01N2470/28 ,  F01N2590/022 ,  Y02T10/20

摘要： An exhaust system for a small watercraft wherein exhaust gas can flow smoothly includes a water muffler in the exhaust system for an engine incorporated in a small watercraft. An exhaust pipe is connected to the water muffler extending upwardly once and then extending downwardly in such a manner as to have a substantially U-shape. Spiral baffle plates are provided for spirally introducing exhaust gas on an inner face of the U-shaped exhaust pipe. Since the baffle plates are provided on the exhaust pipe, cooling water and exhaust gas can be separated from each other.

摘要翻译： 用于小型船舶的排气系统，其中废气可以平稳地流动，包括在小型船舶中引入的发动机的排气系统中的水消声器。 排气管连接到向上延伸一次的水消声器，然后以大致U形的方式向下延伸。 提供螺旋挡板以在U形排气管的内表面上螺旋地引入废气。 由于挡板设置在排气管上，所以冷却水和废气可以彼此分离。

公开(公告)号：US20030134548A1

公开(公告)日：2003-07-17

申请号：US10341755

申请日：2003-01-13

发明人： Yoshimoto Matsuda

IPC分类号： B63H021/32

CPC分类号： F01N13/082 ,  B63H21/32 ,  F01N1/165 ,  F01N13/085 ,  F01N2260/14 ,  F01N2290/10 ,  F01N2530/04 ,  F01N2530/06 ,  F01N2530/22

摘要： Disclosed is a personal watercraft capable of preventing an exhaust gas from contaminating a transom board in the vicinity of an exhaust outlet and of reducing an exhaust noise of the exhaust gas within a wide speed range. The personal watercraft having an engine disposed in a body thereof for driving a water jet pump comprises, an exhaust outlet 2D formed at a rear end of an exhaust passage Ep extending from an exhaust port of the engine E to a transom board Tm of the watercraft so as to open rearwardly; a flexible sheet member 3 disposed at the exhaust outlet and having a closing portion 3A capable of opening/closing the exhaust outlet by an exhaust pressure of the exhaust gas; and a short pipe 5P mounted to the outside of the transom board and extending rearwardly from the transom board Tm so as to surround the closing portion 3A of the sheet member 3, for introducing the exhaust gas rearwardly.

摘要翻译： 本发明公开了一种能够防止废气污染排气口附近的艉板的个人船舶，并且能够在宽的速度范围内减少废气的排气噪声。 具有设置在其主体中的用于驱动水喷射泵的发动机的个人船舶包括形成在从发动机E的排气口延伸到船只的横越板Tm的排气通道Ep的后端处的排气出口2D 以向后打开; 设置在排气出口处的柔性片构件3，具有能够通过排气的排气压力打开/关闭排气口的封闭部分3A; 以及安装在艉板的外侧并从艉板Tm向后延伸的短管5P，以围绕片构件3的关闭部3A，以便向后引入废气。