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公开(公告)号：US4747796A
公开(公告)日：1988-05-31
申请号：US919604
申请日：1986-10-14
申请人： Tomio Iwai , Minoru Kawamura
发明人： Tomio Iwai , Minoru Kawamura
CPC分类号： B63H23/04 , B63H21/28 , Y10T464/50
摘要： Several embodiments of coupling devices for marine outboard drives for providing a coupling between an engine output shaft and the outboard drive, drive shaft. Each embodiment employs as the coupling a first portion that provides a relatively resilient driving connection for absorbing low speed torque vibrations and a second more rigid driving connection for providing a more positive power transmission at high speeds and high loads. In some embodiments, the more resilient connection is provided by a spring which may comprise either a torsional spring or a torsional coil spring. In other embodiments, elastomeric elements provide the driving connection.
摘要翻译： 用于船用舷外驱动器的联接装置的几个实施例，用于在发动机输出轴和外侧驱动器，驱动轴之间提供联接。 每个实施例采用作为联接的第一部分，其提供用于吸收低速扭矩振动的相对弹性的驱动连接和用于在高速和高负载下提供更多正的动力传递的第二更刚性的驱动连接。 在一些实施例中，弹性连接由弹簧提供，该弹簧可包括扭转弹簧或扭转螺旋弹簧。 在其它实施例中，弹性元件提供驱动连接。
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公开(公告)号：US4821687A
公开(公告)日：1989-04-18
申请号：US80951
申请日：1987-07-31
申请人： Tomio Iwai
发明人： Tomio Iwai
CPC分类号： F02B25/14 , F02B2075/025
摘要： A combustion chamber and scavenging configuration for a two-cycle internal combustion engine. The combustion chamber is comprised of an offset recess surrounded by a squish area. An exhaust port is formed on the side of the cylinder opposite to the area where the recess is offset while the intake or transfer ports are disposed on the side to which the recess is offset. The transfer or scavenge ports are configured so as to open progressively first diametrically opposite to the exhaust port and then in an area extending around the area toward the exhaust port.
摘要翻译： 用于两循环内燃机的燃烧室和清扫构造。 燃烧室由被挤压区域包围的偏移凹部构成。 排气口形成在缸体的与凹部偏移的区域相对的侧面上，而进气口或输送口设置在凹部被偏移的一侧。 传送或清除口被构造成逐渐地与排气口沿径向相反地开放，然后在围绕该区域延伸到排气口的区域中。
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公开(公告)号：US4566415A
公开(公告)日：1986-01-28
申请号：US565239
申请日：1983-12-27
申请人： Tomio Iwai , Katsumi Torigai
发明人： Tomio Iwai , Katsumi Torigai
CPC分类号： F02D31/003 , F02B61/045
摘要： Several embodiments of engine speed control mechanisms that permit the running speed of an engine to be maintained at a predetermined value. The mechanical components of the system include a linkage system that connects an operator position throttle control with the throttle valves of the engine and that incorporates a lost motion connection so that the throttle valves may be positioned independently of the operator throttle control to maintain the speed control. In one embodiment of the invention, the throttle and speed control mechanism is mounted on the engine while in another embodiment, these components are mounted remotely from the engine. In one embodiment of the invention, a control circuit is provided that prevents hunting.
摘要翻译： 允许发动机的运行速度保持在预定值的发动机速度控制机构的几个实施例。 该系统的机械部件包括将操作员位置节流控制与发动机的节流阀连接并连接有空转连接的连杆系统，使得节流阀可独立于操作者节气门控制而定位，以保持速度控制 。 在本发明的一个实施例中，节气门和速度控制机构安装在发动机上，而在另一个实施例中，这些部件远离发动机安装。 在本发明的一个实施例中，提供一种防止狩猎的控制电路。
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公开(公告)号：US4403578A
公开(公告)日：1983-09-13
申请号：US317347
申请日：1981-11-02
申请人： Tomio Iwai , Motoi Tobinaga
发明人： Tomio Iwai , Motoi Tobinaga
CPC分类号： F01M1/02 , F01M3/02 , F02B2075/025 , F02B61/045
摘要： A lubricating system for a two cycle engine, particularly of the outboard type, wherein the engine has a separate lubricating system and lubricant is supplied to this system by a relatively small delivery tank via gravity feed. In addition, an arrangement is provided for supplying lubricant to the delivery tank from a separate oil storage tank to maintain a predetermined liquid level in the delivery tank. This system includes a pump located in the separate storage tank. In accordance with certain embodiments of the invention, the pump is operated if the liquid level in the delivery tank falls below a predetermined level. In accordance with one embodiment, the operation of the pump is stopped when the liquid level exceeds a predetermined level.
摘要翻译： 一种用于两循环发动机，特别是外置式发动机的润滑系统，其中发动机具有单独的润滑系统，并且通过重力进给通过相对较小的输送箱向该系统供应润滑剂。 此外，提供了一种用于从单独的储油箱向输送罐供给润滑剂以在输送罐中保持预定液位的装置。 该系统包括位于单独储存罐中的泵。 根据本发明的某些实施例，如果输送罐中的液位低于预定水平，则泵被操作。 根据一个实施例，当液位超过预定水平时，停止泵的操作。
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公开(公告)号：US4735046A
公开(公告)日：1988-04-05
申请号：US871516
申请日：1986-06-06
申请人： Tomio Iwai
发明人： Tomio Iwai
CPC分类号： F01N13/12 , F01M11/10 , F01N3/28 , F02B61/045 , F01N2590/02 , F01N2590/021 , F02B2075/025
摘要： A number of embodiments of treating the exhaust gases of an internal combustion engine with a catalyzer so as to render lubricant in the exhaust gases in a non-polluting form. A number of embodiments applying this principle to marine propulsion units are illustrated and described which include outboard motors and inboards. In each embodiment, the catalyst is position so that the exhaust gases will impinge upon it but need not flow through it for their discharge to the atmosphere. In addition, the exhaust system is designed in such a way that the catalyst may be removed and replaced simply by the use of a removable wall section of the exhaust system.
摘要翻译： 用催化剂处理内燃机的废气以使废气中的润滑剂呈无污染形式的许多实施方式。 示出并描述了将这一原理应用于船舶推进单元的多个实施例，其包括舷外马达和内侧。 在每个实施例中，催化剂的位置是使得废气将会撞击到其上，但是不需要流过它来排放到大气中。 此外，排气系统被设计成使得可以简单地通过使用排气系统的可移除的壁部分去除和替换催化剂。
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公开(公告)号：US4661076A
公开(公告)日：1987-04-28
申请号：US849475
申请日：1986-04-08
申请人： Tomio Iwai
发明人： Tomio Iwai
CPC分类号： B63H20/001 , B63H20/002 , B63H20/32
摘要： Two embodiments of outboard motors including improved protective cowling arrangements for sealingly enclosing a liquid level tank. In each embodiment, a filler neck of the tank extends through an opening in a plate that is affixed relative to the starter handle and which is sealingly engaged with an opening in the protective cowling.
摘要翻译： 舷外马达的两个实施例包括用于密封地封装液位箱的改进的保护整流罩装置。 在每个实施例中，罐的填充颈部延伸穿过板中的开口，该开口相对于起动器手柄固定，并且与保护罩中的开口密封地接合。
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公开(公告)号：US4372258A
公开(公告)日：1983-02-08
申请号：US277698
申请日：1981-06-26
申请人： Tomio Iwai
发明人： Tomio Iwai
IPC分类号： F01M1/02 , B63H20/00 , F01M3/00 , F01M9/10 , F02B61/04 , F02B75/02 , F02B75/18 , F02B75/20 , F02B33/04
CPC分类号： F02B75/20 , F01M3/00 , F02B2075/025 , F02B2075/1808 , F02B61/045
摘要： An improved lubricating system for a two-cycle outboard motor having a vertically extending crankshaft. The lubricating system employs a crankshaft driven pump and circulating system that permits pressure lubricating without necessitating elongation of the crankshaft or engine. The engine is enclosed within a cowling and an oil sump is conveniently located within the cowling and is accessible through a cover door of the cowling for replenishment of the oil supply without removal of the cowling.
摘要翻译： 一种用于具有竖直延伸的曲轴的双循环舷外马达的改进的润滑系统。 润滑系统采用曲轴驱动泵和循环系统，其允许压力润滑，而不需要曲轴或发动机的伸长。 发动机封闭在整流罩内，油底壳位于整流罩内方便，可通过整流罩的盖门进入，以补充供油而不拆除整流罩。
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公开(公告)号：US5546748A
公开(公告)日：1996-08-20
申请号：US159056
申请日：1993-11-29
申请人： Tomio Iwai , Seiichi Tanaka
发明人： Tomio Iwai , Seiichi Tanaka
CPC分类号： F01N13/12 , F01N3/28 , F01N3/2832 , F01N3/2882 , F02B61/045 , F01N2260/024 , F01N2590/021 , F01P3/202 , F02B2075/025
摘要： A number of embodiments of exhaust systems for outboard motors including a combined catalyst bed and exhaust manifold forming member affixed within the cylinder block of the engine so as to be readily detachable for servicing. This combined member is provided with a separate cooling jacket for its cooling.
摘要翻译： 用于舷外马达的排气系统的多个实施例，包括固定在发动机的气缸体内的组合的催化剂床和排气歧管形成构件，以便易于拆卸以进行维修。 该组合构件设置有用于其冷却的单独的冷却套。
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公开(公告)号：USRE32620E
公开(公告)日：1988-03-08
申请号：US774661
申请日：1985-09-11
申请人： Tomio Iwai
发明人： Tomio Iwai
IPC分类号： F01M3/00 , B63H20/00 , F01M11/00 , F02B61/04 , F02B75/00 , F02B75/02 , F02B75/18 , F02B75/20
CPC分类号： F02B61/045 , F02B75/20 , F02B2075/025 , F02B2075/1808 , F02B75/007
摘要： An improved lubricating system for a two-cycle outboard motor having a vertically extending crankshaft. The lubricating system employs a crankshaft driven pump and circulating system that permits pressure lubricating without necessitating elongation of the crankshaft or engine. The engine is enclosed within a cowling and an oil sump is conveniently located within the cowling and is accessible through a cover door of the cowling for replenishment of the oil supply without removal of the cowling.
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公开(公告)号：US4630446A
公开(公告)日：1986-12-23
申请号：US614439
申请日：1984-05-25
申请人： Tomio Iwai , Yukio Matsushita
发明人： Tomio Iwai , Yukio Matsushita
IPC分类号： F01N13/12 , F02B1/04 , F02B33/04 , F02B33/44 , F02B37/02 , F02B37/18 , F02B61/04 , F02B75/00 , F02B75/02 , F02B75/18 , F02B75/20 , F02B37/00
CPC分类号： F01N13/12 , F02B33/04 , F02B33/44 , F02B37/02 , F02B37/18 , F02B75/20 , F02B1/04 , F02B2075/025 , F02B2075/1812 , F02B61/045 , F02B75/007 , Y02T10/144
摘要： Disclosed are several embodiments of a turbo-charged two cycle internal combustion engines utilized in combination with an outboard motor are disclosed. In each embodiment, the exhaust system for the engine includes devices for insuring that sufficient backpressure is exerted at the exhaust port of one cylinder during the overlap period when its scavenge passages and exhaust ports are both open so as to preclude the discharge of fresh fuel/air mixture to the atmosphere without adversely affecting the turbo-charger performance. In some embodiments of the invention, a valve arrangement is controlled for controlling the proportion of the exhaust gases that flow across the turbo-charger so that at some running conditions, the turbo-charger receives all of the exhaust gases. In all embodiments, an expansion chamber device is incorporated in the drive shaft housing of the outboard motor and in some embodiments, the turbo-charger turbine inlet receives its gases from this expansion chamber.
摘要翻译： 公开了与舷外马达组合使用的涡轮增压两循环内燃机的若干实施例。 在每个实施例中，用于发动机的排气系统包括用于确保在其清扫通道和排气口都打开的重叠期间在一个气缸的排气口处施加足够的背压的装置，以排除新鲜燃料/ 空气混合到大气中，不会对涡轮增压器性能产生不利影响。 在本发明的一些实施例中，控制阀装置以控制流经涡轮增压器的排气的比例，使得在某些运行状态下，涡轮增压器接收所有废气。 在所有实施例中，膨胀室装置结合在舷外马达的驱动轴壳体中，并且在一些实施例中，涡轮增压器涡轮机入口从该膨胀室接收其气体。
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