公开(公告)号：US08121775B2

公开(公告)日：2012-02-21

申请号：US12370705

申请日：2009-02-13

申请人： Kenichi Fujino ,  Shigeyuki Ozawa

发明人： Kenichi Fujino ,  Shigeyuki Ozawa

IPC分类号： G06F19/00 ,  F02P5/15 ,  F02D41/22 ,  B63H21/21 ,  G01M15/00

CPC分类号： F02D41/1498 ,  F02D37/02 ,  F02D41/062 ,  F02D41/1454 ,  F02D41/221 ,  F02D2041/228 ,  F02D2200/1015 ,  F02P3/02 ,  F02P5/1506 ,  F02P5/152 ,  F02P9/005 ,  G01M15/11

摘要： A misfire detecting device is provided for a water jet propulsion watercraft in which a propulsion unit operates through an operation of an engine to propel the water jet propulsion watercraft. The misfire detecting device includes injectors arranged to inject fuel into the engine under a fuel injection amount adjusting control implemented by an electric control device, ignition plugs arranged to ignite the fuel injected into the engine from the injectors to operate the engine, an oxygen sensor arranged to detect that a misfire occurs in the engine, a warning lamp and buzzer arranged to inform that the misfire occurs, etc. The misfire detecting device prevents the warning lamp and the buzzer from informing the warning if the misfire is caused through the control by the electric control device. Accordingly, the misfire detecting device for a water jet propulsion watercraft ensures that an operator cannot mistake a misfire caused under a control for a misfire caused due to an abnormality of an engine or other components thereof.

摘要翻译： 为喷水推进船只提供失火检测装置，其中推进单元通过发动机的操作来操作以推进喷水推进船只。 失火检测装置包括喷射器，喷射器布置成在由电控装置实现的燃料喷射量调节控制下将燃料喷射到发动机中;点火塞，其布置成点燃从喷射器喷射到发动机中以操作发动机的燃料;布置 以检测发动机发生失火，布置成通知发生失火等的报警灯和蜂鸣器等。如果通过控制所引起的失火，则失火检测装置防止警告灯和蜂鸣器通知警告 电控装置。 因此，用于喷水推进船舶的失火检测装置确保操作者不会因发动机或其它部件的异常而导致的失火控制引起的失火错误。

公开(公告)号：US08016989B2

公开(公告)日：2011-09-13

申请号：US11211414

申请日：2005-08-25

申请人： Koju Tsukahara ,  Shigeyuki Ozawa ,  Isao Nonaka

发明人： Koju Tsukahara ,  Shigeyuki Ozawa ,  Isao Nonaka

IPC分类号： G01N27/407

CPC分类号： G01N27/4077

摘要： An exhaust gas sensor inhibits a detecting part of an exhaust gas sensor from being exposed to water and has high detection accuracy and high durability. The exhaust gas sensor has a sensor body and a protective cover. The sensor body has an outer housing. The outer housing has a plurality of gas inlets. A gas detection element for detecting a component of the exhaust gas (e.g., oxygen) disposed within the outer housing. The protective cover has a cylindrical shape and has a plurality of protrusions at its opposing ends. The protrusions provide a tight fit with the outer housing. The protective cover is attached to the outer periphery of the outer housing without closing gas inlets formed through the outer cylinder by press-fitting the outer cylinder into the protective cover.

摘要翻译： 废气传感器阻止废气传感器的检测部分暴露于水中并具有高检测精度和高耐久性。 废气传感器具有传感器主体和保护盖。 传感器主体具有外壳。 外壳具有多个气体入口。 一种气体检测元件，用于检测设置在外壳体内的废气（例如氧）的成分。 保护罩具有圆筒形状并且在其相对端具有多个突起。 突起提供与外壳紧密配合。 保护盖通过将外筒压入保护罩而不会关闭通过外筒形成的气体入口而附接到外壳的外周。

公开(公告)号：US07404293B2

公开(公告)日：2008-07-29

申请号：US11186477

申请日：2005-07-21

申请人： Shigeyuki Ozawa

发明人： Shigeyuki Ozawa

IPC分类号： F02B33/44 ,  F02B33/04 ,  F02B37/10 ,  B60W10/04 ,  B63B35/73

CPC分类号： F02D41/0007 ,  F02B29/0406 ,  F02B29/0475 ,  F02B33/00 ,  F02B33/34 ,  F02B33/44 ,  F02D23/00 ,  F02D2200/0404 ,  Y02T10/144

摘要： An intake system for a supercharged engine can include a blow-off passage provides communication between the upstream side of the throttle valve and the upstream side of a supercharger. A blow-off valve opens and closes the blow-off passage. The blow-off valve can be configured to open and close based upon pressure on the downstream side of the throttle valve. The present intake system can further comprise a first conduit providing communication between the upstream side of the throttle valve and the blow-off valve, a second conduit providing communication between the downstream side of the throttle valve and the blow-off valve, and a solenoid valve for switching between the first and second conduits.

摘要翻译： 用于增压发动机的进气系统可以包括吹气通道，其提供节流阀的上游侧和增压器的上游侧之间的连通。 吹扫阀打开和关闭吹扫通道。 吹扫阀可以构造成基于节气门下游侧的压力而打开和关闭。 本进气系统还可以包括：第一管道，其在节流阀的上游侧和排气阀之间提供连通;第二管道，其在节流阀的下游侧与排气阀之间提供连通;以及螺线管 用于在第一和第二管道之间切换的阀。

公开(公告)号：US20050279092A1

公开(公告)日：2005-12-22

申请号：US11153940

申请日：2005-06-16

申请人： Shigeyuki Ozawa

发明人： Shigeyuki Ozawa

IPC分类号： F02B29/04 ,  F02B33/34 ,  F02B33/44 ,  F02M69/04

CPC分类号： F02B33/34 ,  F02B29/0475 ,  F02B33/44 ,  F02M69/042 ,  Y02T10/146

摘要： A watercraft can include an engine connected to multi-furcated intake passages and multi-furcated exhaust passages. The engine can have a crankshaft with its end extending rearwardly of the crankcase. The engine can also have a supercharger and an intercooler. The intercooler and the supercharger can be located forward of the crankcase. An exhaust pipe, designed to discharge combustion gas out of a body through multi-furcated exhaust pipes, is disposed above the supercharger. Forward of the supercharger is located an intake box, on the upper surface of which an intake duct is provided. The intercooler can be located beside the supercharger, through which the supercharger feeds the compressed air toward the engine.

摘要翻译： 船舶可以包括连接到多分叉进气通道和多分叉排气通道的发动机。 发动机可以具有曲轴，其端部延伸到曲轴箱的后方。 发动机还可以具有增压器和中间冷却器。 中间冷却器和增压器可以位于曲轴箱的前方。 设计用于通过多分支排气管将燃烧气体排出体外的排气管设置在增压器上方。 增压器的前方设有进气箱，其上表面设有进气管道。 中间冷却器可以位于增压器旁边，增压器通过该增压器将压缩空气送入发动机。

公开(公告)号：US06279546B1

公开(公告)日：2001-08-28

申请号：US08777486

申请日：1996-12-30

申请人： Ryoichi Nakase ,  Naoki Katoh ,  Shigeyuki Ozawa ,  Masayoshi Nanami

发明人： Ryoichi Nakase ,  Naoki Katoh ,  Shigeyuki Ozawa ,  Masayoshi Nanami

IPC分类号： F02M3704

CPC分类号： F02M37/20 ,  B63B35/731 ,  B63H21/14 ,  B63H21/38 ,  F02M31/20 ,  Y02T10/126

摘要： An improved fuel delivery and injection system for a small watercraft engine reduces the heat effects within an enclosed engine compartment upon a fuel pump of and the fuel within a fuel injection system. The fuel delivery system includes a vapor separator and a high-pressure fuel pump. The fuel pump is at least partially located within the vapor separator. The fuel within the vapor separator cools the fuel pump. The vapor separator also is positioned between a pair of air ducts such that an air stream between the ducts cools the fuel within the vapor separator. This arrangement consequently improves the consistency of the air/fuel ratio in the fuel charges delivered to the engine cylinders, provides a compact structure between the fuel pump, and the vapor separator and improves the durability of the fuel pump.

摘要翻译： 用于小型船只发动机的改进的燃料输送和喷射系统减少了在燃料喷射系统内的燃料泵和燃料的封闭发动机舱内的热效应。 燃料输送系统包括蒸汽分离器和高压燃料泵。 燃料泵至少部分地位于蒸气分离器内。 蒸气分离器内的燃料冷却燃油泵。 蒸气分离器也位于一对空气管道之间，使得管道之间的空气流冷却蒸汽分离器内的燃料。 由此，能够提高输送到发动机气缸的燃料的空燃比的一致性，在燃料泵与蒸汽分离器之间提供紧凑的结构，提高燃料泵的耐久性。

公开(公告)号：US06250980B1

公开(公告)日：2001-06-26

申请号：US09221557

申请日：1998-12-28

申请人： Shigeyuki Ozawa

发明人： Shigeyuki Ozawa

IPC分类号： B63H2110

CPC分类号： F02B61/045

摘要： An improved arrangement of a fuel injection system within a personal watercraft reduces the likelihood that certain sensitive components of the fuel injection system will contact water, regardless of the orientation in which the watercraft floats. Because of the sporty nature of personal watercraft, these boats often are inverted or laid on their sides. The fuel injectors of the fuel injection system are positioned within an engine compartment of the watercraft so as to remain above the water surface level with the watercraft in any orientation. In one mode, the fuel injectors also are positioned above the ends of air ducts through which air is introduced into the engine compartment. The fuel injectors are also shielded by protective covers. As a result, the occurrences of water contacting the fuel injectors is reduced.

摘要翻译： 燃料喷射系统在个人船舶中的改进的布置降低了燃料喷射系统的某些敏感部件将接触水的可能性，而不管船舶浮动的方向如何。 由于个人船只的运动性，这些船只往往是倒立或放置在他们身边。 燃料喷射系统的燃料喷射器定位在船舶的发动机舱内，以便在船体处于任何方位时保持在水面以上。 在一种模式中，燃料喷射器也位于空气管道的端部之上，空气通过空气管道的端部被引入发动机室。 燃油喷射器也被保护罩屏蔽。 结果，减少了与燃料喷射器接触的水的发生。

公开(公告)号：US06123592A

公开(公告)日：2000-09-26

申请号：US175482

申请日：1998-10-20

申请人： Shigeyuki Ozawa

发明人： Shigeyuki Ozawa

IPC分类号： B63H11/10 ,  B63B35/73 ,  B63H21/14 ,  B63H21/38 ,  F01N13/12 ,  F02B61/04 ,  F02M37/00 ,  F02M55/00 ,  F02M55/02 ,  F02M63/02

CPC分类号： F02M37/0017 ,  B63H21/14 ,  F01N13/12 ,  F02B61/045 ,  F02M37/007 ,  F02M55/00 ,  F02M55/007 ,  F02M63/0225 ,  B63B2770/00

摘要： A watercraft includes a trim control and a fuel injection system. The fuel injection system is designed so that the discharge portion of the supply line from the low pressure pump to the high pressure pump extends in a generally downward direction regardless of the trim adjusted condition of the watercraft. In a like manner, the fuel rail which has a high pressure inlet at one end and a return line at the other end is disposed so that the return line is disposed vertically above the inlet under all trim adjusted conditions for automatic vapor purging.

摘要翻译： 船舶包括一个修剪控制和一个燃油喷射系统。 燃料喷射系统被设计成使得从低压泵到高压泵的供应管线的排放部分大致向下延伸，而与船只的修整调节状态无关。 以类似的方式，在一端具有高压入口和另一端的返回管路的燃料轨道设置成使得在用于自动蒸气吹扫的所有调整条件的所有调整条件下，返回管线垂直设置在入口上方。

公开(公告)号：US5902158A

公开(公告)日：1999-05-11

申请号：US777484

申请日：1996-12-30

申请人： Ryoichi Nakase ,  Naoki Katoh ,  Shigeyuki Ozawa ,  Masayoshi Nanami

发明人： Ryoichi Nakase ,  Naoki Katoh ,  Shigeyuki Ozawa ,  Masayoshi Nanami

IPC分类号： B63B35/73 ,  F02B33/04 ,  F02B61/04 ,  F02B75/02 ,  F02B75/18 ,  F02B75/20 ,  F02M31/20 ,  F02M37/00 ,  F02M37/10 ,  F02M37/20 ,  F02M69/46 ,  B63H21/32

CPC分类号： F02M37/007 ,  F02B61/045 ,  F02B75/20 ,  F02M31/20 ,  F02M37/10 ,  F02M37/20 ,  F02M69/465 ,  B63B2770/00 ,  B63B35/731 ,  F02B2075/025 ,  F02B2075/1808 ,  F02B33/04 ,  F02M37/0052 ,  F02M37/0076 ,  Y02T10/126

摘要： An improved fuel delivery and injection system for a small watercraft engine reduces the heat effects within an enclosed engine compartment upon various components of the engine and upon the fuel within the fuel system. The fuel system integrates a fuel pump within a fuel tank at a location which minimizes the effects of watercraft leaning. The inlet of the fuel pump desirably corresponds, in the lateral direction, with a position of an inlet to the jet pump unit. In this position, the pump is less likely to draw air as the watercraft maneuvers. The fuel lines also are arranged within the engine to minimize the effect of engine heat produced by the exhaust system on the fuel delivery lines. The arrangement of the fuel pump and fuel delivery lines consequently improves the consistency of the fuel/air ratio within the fuel charge produced by the engine as less air and vapor delivered to the fuel injectors.

公开(公告)号：US5882236A

公开(公告)日：1999-03-16

申请号：US790743

申请日：1997-01-27

申请人： Shigeyuki Ozawa ,  Shigeharu Mineo

发明人： Shigeyuki Ozawa ,  Shigeharu Mineo

IPC分类号： F01N13/08 ,  F01N13/12 ,  B63B21/32

CPC分类号： F01N13/12 ,  F01N13/08 ,  F01N2590/02

摘要： A small watercraft includes an improved exhaust system that reduces the width of the engine and associated exhaust pipes. The watercraft includes a hull having a length in a longitudinal direction, a width in a lateral direction, and a longitudinal center line. A multi-cylinder engine is carried by the hull. The engine includes an exhaust system with multiple exhaust inlet ends and at least one downstream end. The exhaust inlet ends communicate with the respective cylinders of the engine. A flow axis through each inlet end extends in a direction generally parallel to the longitudinal axis of the hull. As a result, the exhaust system does not significantly protrude in a lateral direction beyond the sides of the engine. The hull consequently has a smaller width than the prior watercrafts which improves it maneuverability.

摘要翻译： 小型船只包括改进的排气系统，可减少发动机和相关排气管的宽度。 船舶具有长度方向的长度，横向宽度以及纵向中心线的船体。 多缸发动机由船体承载。 发动机包括具有多个排气入口端和至少一个下游端的排气系统。 排气入口端与发动机的相应气缸连通。 通过每个入口端的流动轴线在大致平行于船体的纵向轴线的方向上延伸。 结果，排气系统不会在发动机侧面的横向方向上显着突出。 因此，船体的宽度比以前的船只小，从而提高了机动性。

公开(公告)号：US5632660A

公开(公告)日：1997-05-27

申请号：US484953

申请日：1995-06-07

申请人： Ryoichi Nakase ,  Shigeyuki Ozawa ,  Hiroaki Fujimoto

发明人： Ryoichi Nakase ,  Shigeyuki Ozawa ,  Hiroaki Fujimoto

IPC分类号： B63B35/73 ,  F01N1/08 ,  F01N3/04 ,  F01N3/05 ,  F01N3/20 ,  F01N3/28 ,  F01N13/00 ,  F01N13/10 ,  F01N13/12 ,  F01N13/18 ,  F01P3/20 ,  F02B61/04 ,  B63H21/32

CPC分类号： F01N3/2046 ,  B63B35/731 ,  F01N13/004 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N13/12 ,  F01N13/1811 ,  F01N13/1816 ,  F01N13/1844 ,  F01N13/1855 ,  F01N3/04 ,  F01N3/043 ,  F01N3/046 ,  F01N3/05 ,  F01N3/28 ,  F01N3/2842 ,  F01N3/2885 ,  F01N3/2889 ,  F01P3/202 ,  F01P3/205 ,  F02B61/045 ,  F01N1/08 ,  F01N13/10 ,  F01N2230/04 ,  F01N2240/02 ,  F01N2260/022 ,  F01N2260/024 ,  F01N2260/04 ,  F01N2260/10 ,  F01N2450/30 ,  F01N2470/12 ,  F01N2570/12 ,  F01N2590/02 ,  F01N2590/022 ,  F01P2060/16 ,  Y02T10/26

摘要： A number of embodiments of personal watercraft having catalytic exhaust systems for treating and purifying the exhaust gases. In all of the embodiments, the catalyst is positioned and disposed so as to be protected from water. In addition, arrangements are provided for cooling the catalyst, for circulating ventilating air across it, for isolating it from other components such as the fuel tank, and for permitting its flushing with fresh water after operating in a salt water environment.

摘要翻译： 具有用于处理和净化废气的催化排气系统的个人船舶的许多实施例。 在所有实施方案中，将催化剂定位和设置为防止水分。 此外，提供了用于冷却催化剂的装置，用于使通风的空气在其上循环，以将其与诸如燃料箱的其它部件隔离，并且在盐水环境中操作之后允许其用淡水冲洗。