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1. 发明申请

WO2004005692A1 VALVE FOR CONTROL OF ADDITIONAL AIR FOR A TWO-STROKE ENGINE 审中-公开
标题翻译：用于控制二冲程发动机的附加空气的阀
公开(公告)号：WO2004005692A1
公开(公告)日：2004-01-15
申请号：PCT/SE2003/001152
申请日：2003-07-02
申请人： AKTIEBOLAGET ELECTROLUX , MARTINSSON, Pär , BERGMAN, Mikael , CARLSSON, Bo , ROBERG, Mats
发明人： MARTINSSON, Pär , BERGMAN, Mikael , CARLSSON, Bo , ROBERG, Mats
IPC分类号： F02M23/03
CPC分类号： F02B25/22 , F02B2075/025 , F02M23/03 , Y02T10/146
摘要： Flange assembly (56) for supporting a structure that provides scavenging air supply to an internal combustion engine (40) at the carburetor (42) to the engine. The assembly includes a thin-body flange (58) that is configured to be abuttingly installed upon an end surface (48) of the carburetor. The carburetor has its combustion air intake (50) or port exposed at an outer surface for intaking air for the combustion process. The thin construction of the flange enables advantageous positioning of the adaptive flange. The relative dimensioning of the thin-body flange (58) also contributes to its low-impact as a modification to air inlet arrangement. A combustion air aperture (60) is provided that extends through the thin-body flange. The combustion air aperture (60) is located in the flange for alignment with the combustion air intake. By this alignment, fluid communication is established across the flange and into the carburetor when the flange is abuttingly installed upon the carburetor. A scavenging air aperture (64) also extends through the thin-body flange and is spaced apart from the combustion air aperture. A valve assembly (76) is operatively coupled to the thin-body flange and has a valve element (78) positioned at the scavenging air aperture (64) for opening and closing the scavenging air aperture.
摘要翻译：用于支撑结构的法兰组件（56），所述结构向所述发动机提供在所述化油器（42）处的内燃机（40）提供扫气。该组件包括被配置为邻接地安装在化油器的端面（48）上的薄体法兰（58）。化油器具有燃烧空气进口（50）或暴露在外表面的端口，用于吸入空气用于燃烧过程。凸缘的薄结构使得自适应凸缘能够有利地定位。薄体法兰（58）的相对尺寸也有助于其作为对进气装置的改进的低冲击。提供了延伸穿过薄体法兰的燃烧空气孔（60）。燃烧空气孔（60）位于凸缘中以与燃烧空气入口对准。通过这种对准，当凸缘邻接安装在化油器上时，跨越凸缘和化油器建立流体连通。清扫空气孔（64）还延伸穿过薄体法兰并与燃烧空气孔隔开。阀组件（76）可操作地联接到薄体凸缘并且具有定位在扫气孔（64）处的用于打开和关闭扫气孔的阀元件（78）。

2. 发明申请

WO2005028828A1 TWO-STROKE ENGINE COMPRISING TRANSFER DUCTS FOR INDUCTING AIR IN THE CYLINDER, THE DUCTS HAVING A VOLUME BEING LESS THAN 20% OF A VOLUME SWEPT BY THE PISTON 审中-公开
标题翻译：包括用于在气缸中感应空气的传输导管的两冲程发动机，一个体积小于活塞量的20％的导管
公开(公告)号：WO2005028828A1
公开(公告)日：2005-03-31
申请号：PCT/SE2003/001491
申请日：2003-09-25
申请人： AKTIEBOLAGET ELECTROLUX , MARTINSSON, Pär , BERGMAN, Mikael , GUSTAFSSON, Reine
发明人： MARTINSSON, Pär , BERGMAN, Mikael , GUSTAFSSON, Reine
IPC分类号： F02B25/22
CPC分类号： F02B25/22 , F02B1/12
摘要： A crankcase scavenged two-stroke engine (1) comprises a cylinder (15) including scavenging ports (31, 31') and at least one exhaust port, a piston (13), a connecting rod (17), a crankshaft (18) and a generally sealed crankcase (16). The crankcase inducts a fuel/air mixture and is connected to the scavenging ports (31, 31') by means of transfer ducts (3, 3') which, as the piston (13) is travelling from a lower position towards a higher position, are inducting pure air let in from connecting ports (8, 8') near the scavenging ports (31, 31') in the cylinder (15). The transfer duct (3, 3') volume is less than 20 % of a volume swept by the piston (13) during an entire revolution of the crankshaft (18). Recesses (10, 10') are formed in an outer periphery of the piston (13), said recesses (10, 10') co-operating with the connecting ports (8, 8') in the cylinder wall for controlling the filling of the transfer ducts (3, 3') with air. An inlet tube (22) in the cylinder wall supplies the air/fuel mixture, said inlet tube (22) being connected to the crankcase (16) and covered by the piston (13) as the piston (13) is in the lower position, and open to the crankcase (16) as the piston (13) is in the higher position.
摘要翻译：曲轴箱清扫的二冲程发动机（1）包括具有清扫口（31,31'）和至少一个排气口的气缸（15），活塞（13），连杆（17），曲轴（18）和大致密封的曲轴箱（16）。曲轴箱引入燃料/空气混合物，并且通过传送管道（3,3'）连接到清扫口（31,31'），当传动管道（3,3'）活塞（13）从下部位置向较高位置行进时从气缸（15）中的扫气口（31,31'）附近的连接口（8,8'）吸入纯净的空气。在曲轴（18）的整个转动期间，输送管道（3,3'）的体积小于活塞（13）扫过的体积的20％。在活塞（13）的外周形成有凹部（10,10'），所述凹部（10,10'）与气缸壁中的连接口（8,8'）配合，用于控制填充传送管道（3,3'）与空气。气缸壁中的入口管（22）供应空气/燃料混合物，当活塞（13）处于下部位置时，所述入口管（22）连接到曲轴箱（16）并被活塞（13）覆盖，并且当活塞（13）处于较高位置时，该曲轴箱（16）开放到曲轴箱（16）。

3. 发明申请

WO2002092978A1 CRANKCASE SCAVENGED INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译： CRCKCASE SCAVENGED内燃机
公开(公告)号：WO2002092978A1
公开(公告)日：2002-11-21
申请号：PCT/SE2001/001028
申请日：2001-05-11
申请人： AKTIEBOLAGET ELECTROLUX , CARLSSON, Bo , BERGMAN, Mikael
发明人： CARLSSON, Bo , BERGMAN, Mikael
IPC分类号： F02B25/14
CPC分类号： F02M35/1017 , F02B25/22 , F02B33/04 , F02B63/02 , F02B75/16 , F02B2075/025 , F02M35/1019 , F02M35/10255 , F02M35/10288 , F02M35/108
摘要： A crankcase scavenged internal combustion engine (1) of two-stroke type, primarily intended for a handheld working tool, such as a chain saw, with a cylinder (2) and piston (4) reciprocating along the cylinder wall (3), which piston separates a combustion chamber (5) above it and a crankcase volume (6) below it, and in the cylinder wall (3) there are ports (7, 8, 9, 10, 10') arranged for inlet (11), exhaust outlet (12) and for a number of scavenging durct (13, 13'), whereby at least one auxiliary duct (14) is arranged with an auxiliary port (15) in the cylinder wall, which auxiliary port (15) is opened and closued by the piston, and whereby the inlet is divided into: a fuel inlet (16) leading to a fuel port (7) and an air inlet (17) leading to an air port (8), and these ports are opened and closed by the piston (4), which also comprises a transfer space (18), which mouth edges are limited by the piston periphery, and which, in at least one piston position, creates a connection between the fuel port (7) and the auxiliary duct's port (15), so that fuel can be supplied to the auxiliary durct (14) via the auxiliary port (15), and then, after the port (15) later on has been opened by the piston, can flow into the combustion chamber.
摘要翻译：曲轴箱清扫二冲程型内燃机（1），主要用于诸如链锯的手持式工作工具，具有沿气缸壁（3）往复运动的气缸（2）和活塞（4），其中活塞将其上方的燃烧室（5）和其下方的曲轴箱体积（6）分开，并且在气缸壁（3）中，设置有用于入口（11）的端口（7,8,9,10,10'），排气出口（12）和多个清扫装置（13,13'），由此至少一个辅助管道（14）在气缸壁中布置有辅助端口（15），该辅助端口（15）打开并且由活塞封闭，并且由此入口被分成：通向燃料口（7）的燃料入口（16）和通向空气端口（8）的空气入口（17），并且这些端口打开，并且由活塞（4）封闭，所述活塞（4）还包括传送空间（18），所述传送空间（18）的嘴缘受到活塞周边的限制，并且在至少一个活塞位置中，燃料口（7）和辅助管道端口（15），使得燃料可以经由辅助口（15）供给到辅助容器（14），然后在稍后的端口（15）打开之后通过活塞，可以流入燃烧室。

4. 发明授权

EP1282763B1 TWO-STROKE INTERNAL COMBUSTION ENGINE 有权
标题翻译：二冲程内燃机
公开(公告)号：EP1282763B1
公开(公告)日：2006-01-04
申请号：EP00939207.7
申请日：2000-04-27
申请人： AKTIEBOLAGET ELECTROLUX
发明人： ANDERSSON, Lars , BERGMAN, Mikael
IPC分类号： F02B25/14 , F02B33/04 , F02F1/22
CPC分类号： F02B63/02 , F02B25/14 , F02B33/04 , F02B2075/025 , F02F1/22
摘要： A crankcase scavenged internal combustion engine of two-stroke type (1) having at least one cylinder (15) and at least one air passage arranged between an air inlet (2) and the upper part of a number of scavenging ducts (3, 3') with exhaust orientated scavenging ports (9, 9') located close to the exhaust port (19) of the cylinder. At least one intake orientated scavenging port (14, 14') is located close to the inlet port (33) of the cylinder and is fed by at least one scavenging duct (5, 5'), and the air passage and the scavenging ducts are so arranged that the scavenging ducts (3, 3') can be supplied with and hold so much air that they during the following scavenging process will scavenge essentially nothing but air. The air passage is arranged from an air inlet (2) provided with a restriction valve (4) controlled by at least one engine parameter, e.g. the carburettor throttle control, and the intake orientated scavenging port/s (14, 14') is/are so arranged that it/they begin/s to scavenge the air/fuel-mixture (2) later than the scavenging ports (9, 9') begin to scavenge air.

5. 发明公开

EP1282763A1 TWO-STROKE INTERNAL COMBUSTION ENGINE 有权
标题翻译：二冲程内燃机
公开(公告)号：EP1282763A1
公开(公告)日：2003-02-12
申请号：EP00939207.7
申请日：2000-04-27
申请人： Aktiebolaget Electrolux
发明人： ANDERSSON, Lars , BERGMAN, Mikael
IPC分类号： F02B25/14 , F02B33/04 , F02F1/22
CPC分类号： F02B63/02 , F02B25/14 , F02B33/04 , F02B2075/025 , F02F1/22
摘要： A crankcase scavenged internal combustion engine of two-stroke type (1) having at least one cylinder (15) and at least one air passage arranged between an air inlet (2) and the upper part of a number of scavenging ducts (3, 3') with exhaust orientated scavenging ports (9, 9') located close to the exhaust port (19) of the cylinder. At least one intake orientated scavenging port (14, 14') is located close to the inlet port (33) of the cylinder and is fed by at least one scavenging duct (5, 5'), and the air passage and the scavenging ducts are so arranged that the scavenging ducts (3, 3') can be supplied with and hold so much air that they during the following scavenging process will scavenge essentially nothing but air. The air passage is arranged from an air inlet (2) provided with a restriction valve (4) controlled by at least one engine parameter, e.g. the carburettor throttle control, and the intake orientated scavenging port/s (14, 14') is/are so arranged that it/they begin/s to scavenge the air/fuel-mixture (2) later than the scavenging ports (9, 9') begin to scavenge air.

6. 发明公开

EP1668232A1 TWO-STROKE ENGINE COMPRISING TRANSFER DUCTS FOR INDUCTING AIR IN THE CYLINDER, THE DUCTS HAVING A VOLUME BEING LESS THAN 20% OF A VOLUME SWEPT BY THE PISTON 审中-公开
标题翻译： WITH传输通道用于使空气在缸上正在VOLUME PASS结束体积的对接具有小于20％的通道中的引言二冲程发动机
公开(公告)号：EP1668232A1
公开(公告)日：2006-06-14
申请号：EP03818736.5
申请日：2003-09-25
申请人： Aktiebolaget Electrolux (publ)
发明人： MARTINSSON, Pär , BERGMAN, Mikael , GUSTAFSSON, Reine
IPC分类号： F02B25/22
CPC分类号： F02B25/22 , F02B1/12
摘要： A crankcase scavenged two-stroke engine (1) comprises a cylinder (15) including scavenging ports (31, 31') and at least one exhaust port, a piston (13), a connecting rod (17), a crankshaft (18) and a generally sealed crankcase (16). The crankcase inducts a fuel/air mixture and is connected to the scavenging ports (31, 31') by means of transfer ducts (3, 3') which, as the piston (13) is travelling from a lower position towards a higher position, are inducting pure air let in from connecting ports (8, 8') near the scavenging ports (31, 31') in the cylinder (15). The transfer duct (3, 3') volume is less than 20 % of a volume swept by the piston (13) during an entire revolution of the crankshaft (18). Recesses (10, 10') are formed in an outer periphery of the piston (13), said recesses (10, 10') co-operating with the connecting ports (8, 8') in the cylinder wall for controlling the filling of the transfer ducts (3, 3') with air. An inlet tube (22) in the cylinder wall supplies the air/fuel mixture, said inlet tube (22) being connected to the crankcase (16) and covered by the piston (13) as the piston (13) is in the lower position, and open to the crankcase (16) as the piston (13) is in the higher position.

7. 发明公开

EP1540165A1 VALVE FOR CONTROL OF ADDITIONAL AIR FOR A TWO-STROKE ENGINE 有权转让
标题翻译：阀用于控制附加空气中二冲程发动机
公开(公告)号：EP1540165A1
公开(公告)日：2005-06-15
申请号：EP03741736.7
申请日：2003-07-02
申请人： Aktiebolaget Electrolux
发明人： MARTINSSON, Pär , BERGMAN, Mikael , CARLSSON, Bo , ROBERG, Mats
IPC分类号： F02M23/03 , F02B25/22
CPC分类号： F02B25/22 , F02B2075/025 , F02M23/03 , Y02T10/146
摘要： Flange assembly (56) for supporting a structure that provides scavenging air supply to an internal combustion engine (40) at the carburetor (42) to the engine. The assembly includes a thin-body flange (58) that is configured to be abuttingly installed upon an end surface (48) of the carburetor. The carburetor has its combustion air intake (50) or port exposed at an outer surface for intaking air for the combustion process. The thin construction of the flange enables advantageous positioning of the adaptive flange. The relative dimensioning of the thin-body flange (58) also contributes to its low-impact as a modification to air inlet arrangement. A combustion air aperture (60) is provided that extends through the thin-body flange. The combustion air aperture (60) is located in the flange for alignment with the combustion air intake. By this alignment, fluid communication is established across the flange and into the carburetor when the flange is abuttingly installed upon the carburetor. A scavenging air aperture (64) also extends through the thin-body flange and is spaced apart from the combustion air aperture. A valve assembly (76) is operatively coupled to the thin-body flange and has a valve element (78) positioned at the scavenging air aperture (64) for opening and closing the scavenging air aperture.

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