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公开(公告)号：US06578508B2
公开(公告)日：2003-06-17
申请号：US10078198
申请日：2002-02-14
IPC分类号： B63B3573
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.
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公开(公告)号：US5951343A
公开(公告)日：1999-09-14
申请号：US149329
申请日：1998-09-08
IPC分类号： B63H21/38 , B63B35/73 , B63H21/14 , F01M1/12 , F01M11/03 , F01M11/12 , F02B1/04 , F02B61/04 , F02B75/02 , F02B75/18 , F02B75/20 , B63H21/10
CPC分类号： B63H21/14 , F01M11/03 , F01M11/12 , F02B61/045 , F02B75/20 , B63B2770/00 , F01M2001/126 , F01M2011/0095 , F02B1/04 , F02B2075/027 , F02B2075/1808 , F02B2275/18
摘要： A lubricating system for a four-cycle engine positioned within an engine compartment of a personal watercraft for powering a water propulsion unit thereof, is disclosed. The engine compartment, and engine therein, is accessible through a maintenance opening in deck of the watercraft. Preferably, the lubricating system includes an oil filter which is positioned at other than the bottom of the engine for access through the maintenance opening, such as at the front or rear end of the engine. In addition, the engine preferably includes an oil drain which is positioned below the oil filter for draining the oil from the engine.
摘要翻译： 公开了一种四冲程发动机的润滑系统，其位于用于为其水推进单元供电的个人船舶的发动机舱内。 发动机舱及其中的发动机可通过船舶甲板上的维修开口进入。 优选地，润滑系统包括油过滤器，该过滤器位于发动机底部以外，例如在发动机的前端或后端通过维护开口进入。 此外，发动机优选地包括位于油过滤器下方以从发动机排出油的排油口。
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公开(公告)号：US6089932A
公开(公告)日：2000-07-18
申请号：US820801
申请日：1997-03-19
CPC分类号： F02B61/045 , B63H21/30 , B63J2/06 , B63B2770/00 , F01P2050/08 , Y02T70/72
摘要： A small watercraft includes a four-cycle engine which is arranged within a hull of the watercraft to enhance ventilation of and air induction into the engine. The hull includes at least one air duct which opens into an engine compartment within the hull at a level below an upper rim of the flywheel. A case cover of the flywheel assembly acts as a guide to direct at least a portion of the air flow, which enters the engine compartment at this location, upward over the engine and toward the engine's air intake. The engine also can be oriented to angle its output shaft relative to a keel line of the hull in order to provide ample space for a sufficiently sized flywheel assembly, as well as to decrease the distance between the bottom of the watercraft and the axis of the impeller shaft. As a result, the length from the gullet inlet and to the impeller is shortened to improve pumping efficiency and thus enhance thrust performance.
摘要翻译： 小型船只包括四冲程发动机，其布置在船体的船体内，以增强发动机的通风和空气感应。 所述船体包括至少一个空气管道，所述至少一个空气管道在所述船体内部的发动机舱内，位于所述飞轮的上边缘以下的水平面。 飞轮组件的壳盖用作引导件，用于将在该位置处进入发动机舱的空气流的至少一部分引导到发动机上方并朝向发动机的进气口。 发动机还可以被定向成使其输出轴相对于船体的龙骨线倾斜，以便为足够大的飞轮组件提供足够的空间，并且减小船舶的底部与船体的轴线之间的距离 叶轮轴。 结果，从齿槽入口和叶轮的长度被缩短以提高泵送效率，从而提高推力性能。
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公开(公告)号：US06533624B1
公开(公告)日：2003-03-18
申请号：US09157076
申请日：1998-09-18
IPC分类号： B63H2110
CPC分类号： F02B61/045 , F01M2001/126 , F02B2075/027 , F02B2075/1808 , F02B2275/18
摘要： A watercraft having a water propulsion unit driven by an impeller shaft which is powered by a four-cycle internal combustion engine is disclosed. The engine has a crankshaft which drives, via a transmission, the impeller shaft. The transmission is arranged so that the crankshaft of the engine does not contact lubricant in a lubricant reservoir of a lubricating system of the engine. In a first arrangement, the four-cycle engine includes an oil reservoir positioned at a lower portion of the engine. In this arrangement, a crankshaft of the engine extends along an axis above an axis along which the impeller shaft rotates, where the crankshaft and impeller shaft are in driving relation via a gear-type transmission. In a second arrangement, the engine is provided with a dry-sump type lubricating system with an oil reservoir positioned remote of the bottom of the engine, such as on the hull. In this arrangement, the engine is positioned adjacent the bottom of the watercraft, and the crankshaft extends in alignment with the impeller shaft.
摘要翻译： 公开了具有由四冲程内燃机驱动的叶轮轴驱动的水推进单元的船舶。 发动机具有通过变速器驱动叶轮轴的曲轴。 变速器布置成使得发动机的曲轴不接触发动机的润滑系统的润滑剂储存器中的润滑剂。 在第一布置中，四冲程发动机包括位于发动机下部的储油器。 在这种布置中，发动机的曲轴沿着叶轮轴旋转的轴线上方的轴线延伸，曲轴和叶轮轴通过齿轮式变速器处于驱动关系。 在第二种布置中，发动机设置有干式油槽式润滑系统，其具有远离发动机底部的储油器，例如在船体上。 在这种布置中，发动机邻近船舶底部定位，曲轴与叶轮轴对齐。
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公开(公告)号：US06213827B1
公开(公告)日：2001-04-10
申请号：US09260319
申请日：1999-03-01
IPC分类号： B63H2132
CPC分类号： F01N13/12 , B63B35/731 , B63H21/32 , F01N1/084 , F01N3/043 , F01N3/2882 , F01N13/004 , F01N2230/04 , F01N2490/06 , F01N2590/02 , F01N2590/022 , F01P1/06 , F01P2060/16 , F02B61/045 , Y02T10/20
摘要： Several embodiments of personal watercraft employing exhaust systems that incorporate not only a catalyst, but also an exhaust silencing device for silencing the sounds of the exhaust gases. The components are laid out in such a way that there will be minimum heat transfer from the exhaust gases to the engine compartment, and also so that there will be a cooling air flow across the exhaust system to further provide this result. In one embodiment, the silencing device is mounted transversely at the front of the engine, and in other embodiments it is disposed longitudinally to the rear of the engine. In all embodiments, the components are laid out to maintain good fore and aft and side to side balance.
摘要翻译： 使用排气系统的个人船舶的几个实施例，其不仅包括催化剂，而且还包括用于消除废气声音的排气消音装置。 这些部件布置成使得将从排气到发动机室的热传递最小化，并且还将使得穿过排气系统的冷却空气流进一步提供该结果。 在一个实施例中，消音装置横向地安装在发动机的前部，并且在其它实施例中，其被纵向设置在发动机的后部。 在所有实施例中，组件布置成保持良好的前后和侧到平衡。
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公开(公告)号：US5839930A
公开(公告)日：1998-11-24
申请号：US818614
申请日：1997-03-14
IPC分类号： B63H21/38 , B63B35/73 , B63H21/14 , F01M1/12 , F01M11/03 , F01M11/12 , F02B1/04 , F02B61/04 , F02B75/02 , F02B75/18 , F02B75/20 , B63H21/10
CPC分类号： B63H21/14 , F01M11/03 , F01M11/12 , F02B61/045 , F02B75/20 , B63B2770/00 , F01M2001/126 , F01M2011/0095 , F02B1/04 , F02B2075/027 , F02B2075/1808 , F02B2275/18
摘要： A lubricating system for a four-cycle engine positioned within an engine compartment of a personal watercraft for powering a water propulsion unit thereof, is disclosed. The engine compartment, and engine therein, is accessible through a maintenance opening in deck of the watercraft. Preferably, the lubricating system includes an oil filter which is positioned at other than the bottom of the engine for access through the maintenance opening, such as at the front or rear end of the engine. In addition, the engine preferably includes an oil drain which is positioned below the oil filter for draining the oil from the engine.
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公开(公告)号：US06322409B1
公开(公告)日：2001-11-27
申请号：US09260327
申请日：1999-03-01
IPC分类号： B63H2110
CPC分类号： F01N13/12 , F01N13/004 , F01N2590/02 , F01N2590/022 , F02B61/045 , F02B75/20 , F02B2075/027 , F02B2075/1816 , F02B2275/18 , F02M69/044 , F02M69/045 , F02M69/10
摘要： Several embodiments of personal watercraft having a V bottom hulls that define an engine compartment in which an internal combustion engine is positioned. This engine drives a propulsion device for the watercraft through an appropriate transmission. The engine includes an engine body having an opening into which a fuel injector injects. The fuel injector is positioned so that its spray axis is oriented so that it is not likely to intersect the walls of the engine that define the opening regardless of the angular position of the watercraft in the body of water in which it is operating. Both direct and manifold injected and two and four cycle engines are disclosed.
摘要翻译： 具有V底壳的个人船舶的几个实施例限定内燃发动机所在的发动机室。 该发动机通过适当的变速器驱动船舶的推进装置。 发动机包括具有燃料喷射器喷射到其中的开口的发动机主体。 燃料喷射器被定位成使得其喷射轴线被定向成使得它不可能与限定开口的发动机的壁相交，而不管船舶在其正在运行的水体中的角位置如何。 公开了直喷和歧管喷射以及两和四循环发动机。
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公开(公告)号：US5885121A
公开(公告)日：1999-03-23
申请号：US820799
申请日：1997-03-19
CPC分类号： F02B75/20 , F01P3/202 , F02B61/045 , F01P2050/04 , F01P2060/04 , F01P2060/16 , F02B2075/027 , F02B2075/1808
摘要： In accordance with the present invention there is provided a cooling system for a four-cycle engine utilized to power a water propulsion device of a watercraft of the type including a propulsion passage having an inlet in the bottom of the hull and an outlet at the stern of the watercraft. In a first embodiment, coolant is delivered from the propulsion passage to an exhaust manifold cooling jacket, then to at least one passage extending through the engine and then an exhaust pipe cooling jacket. As an additional aspect of the invention, coolant is provided to an oil cooler for cooling lubricating oil used to lubricate the engine. In another embodiment of the present invention, an exhaust cooling system is provided for the four-cycle engine powering the watercraft, separate from the cooling system for the cylinder block and cylinder head of the engine. Coolant is supplied through cooling jackets provided along substantially the length of the exhaust system from the engine to a discharge from the watercraft.
摘要翻译： 根据本发明，提供了一种用于四冲程发动机的冷却系统，其用于为包括在船体底部具有入口的推进通道和船尾处的出口的推进通道类型的船舶的水推进装置提供动力 的船只。 在第一实施例中，冷却剂从推进通道被输送到排气歧管冷却套，然后被传送到延伸穿过发动机的至少一个通道，然后是排气管冷却套。 作为本发明的另一方面，将冷却剂提供给用于冷却用于润滑发动机的润滑油的油冷却器。 在本发明的另一个实施例中，提供一种排气冷却系统，用于与用于气缸体和发动机气缸盖的冷却系统分离的四冲程发动机的动力。 冷却液通过沿着排气系统的长度从发动机提供到通过船只排出的冷却夹套供应。
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公开(公告)号：US06497596B1
公开(公告)日：2002-12-24
申请号：US09401716
申请日：1999-09-23
申请人： Masayoshi Nanami
发明人： Masayoshi Nanami
IPC分类号： B63H2110
CPC分类号： F01M5/002 , B63B35/731 , B63H21/14 , B63H21/386 , F01P3/18 , F01P2050/02 , F01P2060/04
摘要： A lubrication cooling system for an internal combustion engine positioned within an engine compartment of a personal watercraft for powering a water propulsion unit thereof, is disclosed. The lubrication cooling system lowers the temperature of the lubrication for the internal combustion engine of a personal watercraft. Preferably, the lubrication cooling system incorporates cooling the lubrication by introducing the lubrication cooler to a fluid such as forced air or ambient water.
摘要翻译： 公开了一种用于内燃机的润滑冷却系统，该内燃机位于用于为其水推进单元供电的个人船舶的发动机舱内。 润滑冷却系统降低个人船舶内燃机的润滑温度。 优选地，润滑冷却系统包括通过将润滑冷却器引入诸如强制空气或环境水的流体来冷却润滑。
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公开(公告)号：US06461207B1
公开(公告)日：2002-10-08
申请号：US09497569
申请日：2000-02-03
申请人： Masayoshi Nanami
发明人： Masayoshi Nanami
IPC分类号： B63H2110
CPC分类号： F01M11/0004 , F01M1/02 , F01M11/02 , F01M2011/0079 , F02B61/045
摘要： A small watercraft includes a lubrication system having at least one pump, a lubricant reservoir, and a lubricant filter. The lubricant pump is configured to circulate lubricant between the reservoir, the filter and the engine. The lubricant filter is arranged either on a forward side or a rearward side of the lubricant reservoir. Alternatively, the lubricant filter may be mounted on a side of the engine opposite the lubricant reservoir and on a forward side or rearward side of the exhaust manifold. Further, the lubricant pump and the lubricant reservoir may be mounted rearward from a rear end of the engine body. Each of the arrangements provide an engine having a compactly arranged lubrication system which minimizes the affect on the overall width of the engine caused by the lubrication system.
摘要翻译： 小型船只包括具有至少一个泵，润滑剂贮存器和润滑剂过滤器的润滑系统。 润滑剂泵被配置为在储存器，过滤器和发动机之间循环润滑剂。 润滑剂过滤器布置在润滑剂储存器的前侧或后侧。 或者，润滑剂过滤器可以安装在与润滑剂储存器相对的发动机的侧面上，并且安装在排气歧管的前侧或后侧。 此外，润滑剂泵和润滑剂储存器可以从发动机主体的后端向后安装。 每个装置提供具有紧凑布置的润滑系统的发动机，其最小化对由润滑系统引起的发动机总宽度的影响。
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