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1. 发明公开

EP1006267A4 STRATIFIED SCAVENGING TWO-CYCLE ENGINE 失效
标题翻译： ZWEITAKTMOTOR麻省理工学院
公开(公告)号：EP1006267A4
公开(公告)日：2001-10-31
申请号：EP97944119
申请日：1997-10-15
申请人： KOMATSU ZENOA KK , PETROLEUM ENERGY CENTER FOUND
发明人： NOGUCHI MASANORI
IPC分类号： F02B17/00 , F02B25/14 , F02B25/16 , F02B25/20 , F02B25/22 , F02B33/04 , F02B33/44 , F02B75/02 , F02F1/22 , F02F3/00 , F02F3/24
CPC分类号： F02B33/04 , F02B17/00 , F02B25/14 , F02B25/22 , F02B33/44 , F02B2075/025 , F02F1/22
摘要： A stratified scavenging two-cycle engine, in which exhaust gas can be made cleaner. The stratified scavenging two-cycle engine comprises a scavenging flow passage (3) for connection between a cylinder chamber (4a) and a crank chamber (1a), and an air flow passage (2) connected to the scavenging flow passage (3). The engine is constructed such that pressure reduction in the crank chamber (1a), accompanying upward movement of a piston (7) permits air to be drawn into the scavenging flow passage (3) from the air flow passage (2). A scavenging port (3a), at which the scavenging flow passage (3) is opened to a cylinder inner surface (4b), is clear of a wall side of the piston (7) and communicates to the crank chamber (1a) in a state that the piston (7) is positioned at least at an upper dead center.
摘要翻译：本发明是一种可以使废气清洁的分层清扫双循环发动机。为此，在包括用于在气缸室（4a）和曲柄室（1a）之间连接的扫气流路（3）的分层清扫双冲程发动机和与该气缸室（4a）连接的气流通道清扫流路（3），其构造成使得在活塞（7）向上运动之后曲柄室（1a）中的压力降低允许空气从空气流中吸入扫气流路（3）侧通道（2），清扫流路（3）向气缸内表面（4b）开口的清扫口（3a）离开活塞（7）的侧壁，并与曲柄室（1a）中。

2. 发明公开

EP0971110A4 STRATIFIED SCAVENGING TWO-CYCLE ENGINE 审中-公开
标题翻译： ZWEITAKTMOTOR MITSCHICHTSPÜLUNG
公开(公告)号：EP0971110A4
公开(公告)日：2000-09-06
申请号：EP98944286
申请日：1998-09-29
申请人： KOMATSU ZENOA KK , PETROLEUM ENERGY CENTER FOUND
发明人： SAWADA TOSHIHARU , NOGUCHI MASANORI , KOBAYASHI BUHEI
IPC分类号： F02B17/00 , F02B25/14 , F02B25/16 , F02B25/22 , F02B75/02 , F02B23/00
CPC分类号： F02B25/14 , F02B17/00 , F02B2075/025
摘要： A stratified scavenging two-cycle engine capable of meeting the regulation for an emission rate of THC in exhaust gases with a simple construction, comprising a cylinder (4) receiving a piston (1) vertically slidably and having an exhaust port (14) and a scavenging port (16) in a side wall thereof, a scavenging channel (22) connecting a crank chamber (8) and the scavenging port (16), an air supply flow passage (24) connected to the scavenging channel (22) for supplying an air via a check valve (26), and an air-fuel mixture supply flow passage (20) for supplying an air-fuel mixture to the crank chamber (8), wherein, during a suction stroke, in which the crank chamber (8) becomes negative in pressure, an air charging quantity ratio R = qa/Qf, which is a ratio of an air charging quantity qa flowing through the air supply flow passage (24), to an air-fuel mixture charging quantity Qf flowing through the air-fuel mixture supply flow passage (20), satisfies 0.7
摘要翻译：本发明涉及一种分层扫气式二冲程发动机，其能够以简单的结构满足排气中THC排放速率的调节，该分层扫气式二冲程发动机包括容纳垂直可滑动地具有排气口（14）和活塞（1）的活塞（1）的气缸（4）连接曲轴室（8）和扫气口（16）的扫气通道（22），与扫气通道（22）相连的供气流道（24）通过止回阀（26）产生的空气以及用于向曲柄室（8）供应空气 - 燃料混合物的空气 - 燃料混合物供应流道（20），其中，在吸入行程中，曲轴室 8）成为负压时，作为流过供气流路（24）的充气量qa与流过空气供给流路（24）的混合气充量Qf之比即充气量比R = qa / Qf 空气 - 燃料混合物供应流动通道（20）满足0.7

3. 发明公开

EP0992660A4 STRATIFIED SCAVENGING TWO-CYCLE ENGINE 失效
标题翻译：层冲厕的二冲程发动机
公开(公告)号：EP0992660A4
公开(公告)日：2002-01-02
申请号：EP98923125
申请日：1998-06-04
申请人： KOMATSU ZENOA KK , PETROLEUM ENERGY CENTER FOUND
发明人： NOGUCHI MASANORI
IPC分类号： F02B25/16 , F02B75/02 , F02B75/16 , F02F1/22 , F02F3/24 , F02B25/22
CPC分类号： F02B75/16 , F02B25/16 , F02B2075/025 , F02F1/22 , F02F3/24
摘要： A stratified scavenging two-cycle engine capable of doing away with emission of a mixture into the atmosphere and reducing intake resistance of air, wherein an air intake port (11) is provided in a position a predetermined distance away from a scavenging port (51) toward a crank chamber (20) in an axial direction of a cylinder (1), and the scavenging port (51) is connected to the air intake port (11) through a piston (3) to supply air to a scavenging flow passage (50) from the air intake port (11) through the scavenging port (51) at the time of intake stroke.

4. 发明公开

EP0933515A4 STRATIFIED SCAVENGING TWO-CYCLE ENGINE 失效
标题翻译： ZWEITAKTMOTOR MIT GESCHICHTETERSPÜLUNG
公开(公告)号：EP0933515A4
公开(公告)日：2001-10-17
申请号：EP97944121
申请日：1997-10-15
申请人： KOMATSU ZENOA KK , PETROLEUM ENERGY CENTER FOUND
发明人： NOGUCHI MASANORI
IPC分类号： F02B25/20 , F02B25/22 , F02B33/04 , F02B33/44 , F02B75/02 , F02D9/02 , F02D41/02 , F02D41/10 , F02D41/30 , F02M7/06 , F02B17/00 , F02B25/16
CPC分类号： F02D41/10 , F02B25/22 , F02B33/04 , F02B2075/025 , F02D41/105 , F02D41/3023 , F02D2400/04 , F02M7/06
摘要： A stratified scavenging two-cycle engine, in which control of an air flow rate provides a favorable accelerating performance and can prevent deterioration of exhaust gas. The stratified scavenging two-cycle engine comprises a scavenging flow passage (3) for connection between a cylinder chamber (4a) and a crank chamber (1a), an air flow passage (2) connected to the scavenging flow passage (3), air flow rate control means (12) for controlling a flow rate of air fed to the scavenging flow passage (3) from the air flow passage (2), and mixture flow rate control means (11) for controlling a flow rate of mixture sucked into the crank chamber (1a) from a mixture flow passage (10). The air flow rate control means (12) throttles an air flow rate at the time of acceleration. Alternatively, the air flow rate control means (12) is opened later than the mixture flow rate control means (11) at the time of acceleration.
摘要翻译：分层扫气式二冲程发动机，其中空气流量的控制提供了有利的加速性能并且可以防止废气的劣化。分层扫气二冲程发动机包括用于气缸室（4a）和曲轴室（1a）之间的连接的扫气流道（3），连接到扫气流道（3）的气流通道（2），空气控制从所述空气流路（2）向所述扫气流路（3）供给的空气的流量的流量控制单元（12）;以及控制向所述空气流路（2）吸入的混合物的流量的混合流量控制单元来自混合流动通道（10）的曲轴室（1a）。空气流量控制装置（12）在加速时节流空气流量。或者，空气流量控制装置（12）在加速时比混合物流量控制装置（11）晚打开。

5. 发明公开

EP0933514A4 STRATIFIED SCAVENGING TWO-CYCLE ENGINE 失效
标题翻译：二冲程发动机分层FLUSHING
公开(公告)号：EP0933514A4
公开(公告)日：2001-10-17
申请号：EP97944120
申请日：1997-10-15
申请人： KOMATSU ZENOA KK , PETROLEUM ENERGY CENTER FOUND
发明人： NOGUCHI MASANORI
IPC分类号： F02B17/00 , F02B25/16 , F02B25/20 , F02B25/22 , F02B33/04 , F02B33/30 , F02B33/44 , F02B75/02 , F02F1/22
CPC分类号： F02B33/30 , F02B17/00 , F02B25/22 , F02B33/04 , F02B33/44 , F02B2075/025 , F02F1/22
摘要： A stratified scavenging two-cycle engine, which is more compact in construction. The stratified scavenging two-cycle engine comprises a scavenging flow passage (3) for connection between a cylinder chamber (4a) and a crank chamber (1a), and an air flow passage (2) connected to the scavenging flow passage (3). The scavenging flow passage (3) is continuously formed by a communication portion (30) extending from the crank chamber (1a) toward a cylinder chamber (4a), and a scavenging direction adjustment portion (31) extending from a communication portion (30) toward a cylinder inner surface (4b) and opened at a scavenging port (3a) to the cylinder inner surface (4b). The air flow passage (2) extends to an area surrounded by the communication portion (30), scavenging direction adjustment portion (31) and the cylinder inner surface (4b).

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