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1. 发明授权

US06230672B1 Two-cycle internal combustion engine 失效
标题翻译：双循环内燃机
公开(公告)号：US06230672B1
公开(公告)日：2001-05-15
申请号：US08866299
申请日：1997-05-30
申请人： Yoichi Ishibashi , Kenji Nishida , Shinichi Isomura , Masahiro Asai , Hideki Noritake , Masami Takubo
发明人： Yoichi Ishibashi , Kenji Nishida , Shinichi Isomura , Masahiro Asai , Hideki Noritake , Masami Takubo
IPC分类号： F02B2520
CPC分类号： F02B25/14 , F02B25/20 , F02B2075/025
摘要： To provide a two-cycle internal combustion engine capable of preventing the blow-by phenomenon to improve fuel economy and attain a high exhaust gas purifying performance, and increasing the responsiveness of fuel injection volume. In a two-cycle internal combustion engine, a chamber is disposed in scavenging passages for communicating a crank chamber to a combustion chamber, sealable control valves are respectively disposed in an inlet and an outlet of the chamber, and a fuel feeding system for the supply of fuel into the chamber is provided. The chamber is communicated to one scavenging passage out of a plurality of parallel scavenging passages. The combustion chamber side control valve disposed at an outlet of the chamber on the downstream side of the crank case side control valve provided at an inlet of the chamber, is positioned at the bottom portion of a scavenging passage communicated to the chamber.
摘要翻译：提供能够防止窜气现象提高燃料经济性并获得高废气净化性能的双循环内燃机，并且提高燃油喷射量的响应性。在一个双循环内燃机中，腔室设置在用于将曲柄室连通到燃烧室的扫气通道中，可密封的控制阀分别设置在腔室的入口和出口中，以及用于供给的燃料供给系统提供了燃料进入腔室。所述室与多个平行清扫通道中的一个清除通道相通。设置在设置在室的入口处的曲轴箱侧控制阀的下游侧的室的出口处的燃烧室侧控制阀位于与室连通的扫气通道的底部。

2. 发明授权

US5988122A Two-cycle engine 失效
标题翻译：双循环发动机
公开(公告)号：US5988122A
公开(公告)日：1999-11-23
申请号：US50427
申请日：1998-03-31
申请人： Masashi Amano , Masami Takubo , Takaharu Kurosaki
发明人： Masashi Amano , Masami Takubo , Takaharu Kurosaki
IPC分类号： F02B75/02 , F02D13/02 , F02B25/00
CPC分类号： F02D13/0284 , F02B2075/025 , Y02T10/18
摘要： To provide a structure for attaching exhaust control valves near exhaust ports in a two-cycle engine, the exhaust control valves variably controlling open areas of the exhaust ports. The cavity for receiving the exhaust control valves is formed near the upper edges of the exhaust ports on the cylinder block. The holder member is interposed between the cylinder block and the exhaust manifold, is attached to the pivot for supporting the exhaust control valves. A flange is provided for connection with the cylinder block. Therefore, the exhaust control valves are disposed near the upper edges of the exhaust ports. It is not necessary to form bearings on the cylinder block using a complicated process. Complicated parts such as bearings are collectively formed on the holder member that is independent and compact and easily machined. The pivot extends across the exhaust passages that are formed downwardly in order to detour around the pivot. A jet-propelled boat is provided with a saddle seat in which the power unit is neatly and compactly arranged in a limited space.
摘要翻译：为了提供一种用于在两冲程发动机中的排气口附近安装排气控制阀的结构，排气控制阀可变地控制排气口的开放区域。用于接收排气控制阀的空腔形成在气缸体上的排气口的上边缘附近。保持器构件插入在气缸体和排气歧管之间，附接到用于支撑排气控制阀的枢轴。提供了一个与气缸体连接的凸缘。因此，排气控制阀设置在排气口的上边缘附近。使用复杂的工艺不需要在气缸体上形成轴承。诸如轴承的复杂部件集体地形成在独立且紧凑且容易加工的保持器构件上。枢轴延伸穿过向下形成的排气通道，以围绕枢轴绕行。喷气推进船设置有鞍座，其中动力单元在有限的空间内整齐且紧凑地布置。

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