公开(公告)号：US20060169225A1

公开(公告)日：2006-08-03

申请号：US11278539

申请日：2006-04-03

申请人： Bo Carlsson ,  Roy Ekdahl ,  Hans Strom

发明人： Bo Carlsson ,  Roy Ekdahl ,  Hans Strom

IPC分类号： F02B33/00 ,  F02B33/04 ,  F02B25/00

CPC分类号： F02B25/14 ,  F02B25/22 ,  F02B33/04 ,  F02B63/02 ,  F02B2075/025 ,  F02F1/22 ,  F02F3/24

摘要： Crankcase scavenged two-stroke internal combustion engine (1), in which a piston ported air passage is arranged between an air inlet (2) and the upper part of a number of transfer ducts (3, 3′). The air passage is arranged from an air inlet (2) equipped with a restriction valve (4), controlled by at least one engine parameter, for instance the carburetor throttle control. The air inlet extends via at least one connecting duct (6, 6′) to at least one connecting port (8, 8′) in the engine's cylinder wall (12). The connecting port (8, 8′) is arranged so that it in connection with piston positions at the top dead center is connected with flow paths (10, 10′) embodied in the piston (13), which extend to the upper part of a number of transfer ducts (3, 3′). Each flow path through the cylinder and piston is to a great extent arranged in the cylinder's lateral direction, on the one hand in that the connecting port (8, 8′) and adjacent scavenging port (31, 31′) of the cylinder are shifted sideways in relation to each other along the periphery of the cylinder wall (12), and on the other hand in that the transfer ducts (3, 3′) of the cylinder are running essentially in the cylinder's lateral direction away from each transfer port (31, 31′) respectively, i.e. tangentially in relation to the circumference of the cylinder wall (12).

摘要翻译： 曲轴箱清扫二冲程内燃机（1），其中活塞端口空气通道布置在空气入口（2）和多个输送管道（3,3'）的上部之间。 空气通道从配备有限制阀（4）的进气口（2）布置，由至少一个发动机参数控制，例如化油器节气门控制。 空气入口经由至少一个连接管道（6,6'）延伸到发动机气缸壁（12）中的至少一个连接端口（8,8'）。 连接端口（8,8'）被布置成使得其与上死点处的活塞位置相连接，该流动路径（10,10'）具体体现在活塞（13）中，该流动路径延伸到 多个输送管道（3,3'）。 一方面，通过气缸和活塞的每个流动路径都大大地设置在气缸的横向上，一方面是气缸的连接口（8,8'）和相邻的清空口（31,31'）移动 沿着气缸壁（12）的周边相对于彼此横向相对，另一方面是气缸的传送管道（3,3'）基本上在气缸的横向方向上远离每个传送端口（ 31，31'），即相对于气缸壁（12）的圆周切向。

公开(公告)号：US07565886B2

公开(公告)日：2009-07-28

申请号：US11278539

申请日：2006-04-03

申请人： Bo Carlsson ,  Roy Ekdahl ,  Hans Strom

发明人： Bo Carlsson ,  Roy Ekdahl ,  Hans Strom

IPC分类号： F02B33/00

CPC分类号： F02B25/14 ,  F02B25/22 ,  F02B33/04 ,  F02B63/02 ,  F02B2075/025 ,  F02F1/22 ,  F02F3/24

摘要： Crankcase scavenged two-stroke internal combustion engine (1), in which a piston ported air passage is arranged between an air inlet (2) and the upper part of a number of transfer ducts (3, 3′). The air passage is arranged from an air inlet (2) equipped with a restriction valve (4), controlled by at least one engine parameter, for instance the carburetor throttle control. The air inlet extends via at least one connecting duct (6, 6′) to at least one connecting port (8, 8′) in the engine's cylinder wall (12). The connecting port (8, 8′) is arranged so that it in connection with piston positions at the top dead center is connected with flow paths (10, 10′) embodied in the piston (13), which extend to the upper part of a number of transfer ducts (3, 3′). Each flow path through the cylinder and piston is to a great extent arranged in the cylinder's lateral direction, on the one hand in that the connecting port (8, 8′) and adjacent scavenging port (31, 31′) of the cylinder are shifted sideways in relation to each other along the periphery of the cylinder wall (12), and on the other hand in that the transfer ducts (3, 3′) of the cylinder are running essentially in the cylinder's lateral direction away from each transfer port (31, 31′) respectively, i.e. tangentially in relation to the circumference of the cylinder wall (12).

公开(公告)号：US07082910B2

公开(公告)日：2006-08-01

申请号：US09952383

申请日：2001-09-14

申请人： Bo Carlsson ,  Roy Ekdahl ,  Hans Ström

发明人： Bo Carlsson ,  Roy Ekdahl ,  Hans Ström

IPC分类号： F02B25/20

CPC分类号： F02B25/14 ,  F02B25/22 ,  F02B33/04 ,  F02B63/02 ,  F02B2075/025 ,  F02F1/22 ,  F02F3/24

摘要： Crankcase scavenged two-stroke internal combustion engine (1), in which a piston ported air passage is arranged between an air inlet (2) and the upper part of a number of transfer ducts (3, 3′). The air passage is arranged from an air inlet (2) equipped with a restriction valve (4), controlled by at least one engine parameter, for instance the carburetor throttle control. The air inlet extends via at least one connecting duct (6, 6′) to at least one connecting port (8, 8′) in the engine's cylinder wall (12). The connecting port (8, 8′) is arranged so that it in connection with piston positions at the top dead center is connected with flow paths (10, 10′) embodied in the piston (13), which extend to the upper part of a number of transfer ducts (3, 3′). Each flow path through the cylinder and piston is to a great extent arranged in the cylinder's lateral direction, on the one hand in that the connecting port (8, 8′) and adjacent scavenging port (31, 31′) of the cylinder are shifted sideways in relation to each other along the periphery of the cylinder wall (12), and on the other hand in that the transfer ducts (3, 3′) of the cylinder are running essentially in the cylinder's lateral direction away from each transfer port (31, 31′) respectively, i.e. tangentially in relation to the circumference of the cylinder wall (12).

摘要翻译： 曲轴箱清扫二冲程内燃机（1），其中活塞端口空气通道布置在空气入口（2）和多个输送管道（3,3'）的上部之间。 空气通道从配备有限制阀（4）的进气口（2）布置，由至少一个发动机参数控制，例如化油器节气门控制。 空气入口经由至少一个连接管道（6,6'）延伸到发动机气缸壁（12）中的至少一个连接端口（8,8'）。 连接端口（8,8'）被布置成使得其与上死点处的活塞位置相连接，该流动路径（10,10'）具体体现在活塞（13）中，该流动路径延伸到 多个输送管道（3,3'）。 一方面，通过气缸和活塞的每个流动路径都大大地设置在气缸的横向上，一方面是气缸的连接口（8,8'）和相邻的清空口（31,31'）移动 沿着气缸壁（12）的周边相对于彼此横向相对，另一方面是气缸的传送管道（3,3'）基本上在气缸的横向方向上远离每个传送端口（ 31，31'），即相对于气缸壁（12）的圆周切向。

公开(公告)号：US08074623B2

公开(公告)日：2011-12-13

申请号：US12300310

申请日：2006-05-12

申请人： Bo Carlsson ,  Niklas Enander ,  Reine Gustafsson ,  Mikael Larsson ,  Mats Roberg

发明人： Bo Carlsson ,  Niklas Enander ,  Reine Gustafsson ,  Mikael Larsson ,  Mats Roberg

IPC分类号： F02D41/10

CPC分类号： F02D31/007 ,  F02D31/008 ,  F02D35/0053 ,  F02D41/06 ,  F02D2400/06

摘要： Method for adjusting the air-fuel ratio of an internal combustion engine, in a fuel supply section thereof, such as a carburettor or a fuel-injection system, the fuel supply section having a control unit for adjusting the air-fuel ratio of the engine, and the engine having an engine speed and an engine throttle ranging from zero throttle to full throttle. The method including: a) measuring the engine speed of the engine; b) comparing the engine speed to a first engine speed value; c) adjusting the air fuel ratio if the engine speed is lower than the first engine speed value; and d) repeating a) to c) until the engine speed is either greater than or equal to the first engine speed value.

摘要翻译： 一种用于调节内燃机在其燃料供应部分（例如化油器或燃料喷射系统）中的空燃比的方法，所述燃料供应部分具有用于调节发动机的空燃比的控制单元 ，并且发动机具有从零油门到全油门的发动机转速和发动机油门。 该方法包括：a）测量发动机的发动机转速; b）将发动机速度与第一发动机转速值进行比较; c）如果发动机转速低于第一发动机转速值，则调节空燃比; 和d）重复a）至c）直到发动机转速大于或等于第一发动机转速值。

公开(公告)号：US07699039B2

公开(公告)日：2010-04-20

申请号：US11968191

申请日：2008-01-01

申请人： Bo Carlsson ,  Mikael Larsson ,  Lars Andersson ,  Tore Aronsson

发明人： Bo Carlsson ,  Mikael Larsson ,  Lars Andersson ,  Tore Aronsson

IPC分类号： F02P5/00 ,  F02P9/00

CPC分类号： F02P11/00 ,  F02N15/022 ,  F02P1/086 ,  F02P5/1506 ,  F02P5/1508 ,  F02P9/005

摘要： A method for controlling an ignition system of an internal combustion engine having a primary firing pulse generator for charging a capacitor. An electronic switch is included for discharging the capacitor via an ignition coil to generate an ignition voltage. A microcomputer operates the switch to control the ignition timing of the generator. The microcomputer is in communication with a speed sensor that detects the rotational speed of the engine and a speed limitation control that limits the engine speed to a limitation speed below the clutch-in speed of an included centrifugal clutch. The speed limitation control is active or activated when one of either starting the engine or an operating problem of the power tool is detected. The speed limitation control is deactivated when a low speed state of the engine is detected.

摘要翻译： 一种用于控制具有用于对电容器充电的初级点火脉冲发生器的内燃机的点火系统的方法。 包括用于通过点火线圈放电电容器以产生点火电压的电子开关。 微型计算机操作开关以控制发电机的点火正时。 微型计算机与检测发动机的转速的速度传感器连通，并且限速控制将发动机速度限制在低于包含的离心式离合器的离合器速度的限制速度。 当检测到起动发动机或电动工具的操作问题之一时，速度限制控制被激活或激活。 当检测到发动机的低速状态时，速度限制控制被停用。

公开(公告)号：US06877723B2

公开(公告)日：2005-04-12

申请号：US10064320

申请日：2002-07-02

申请人： Pär Martinsson ,  Mikael Bergman ,  Bo Carlsson ,  Mats Roberg

发明人： Pär Martinsson ,  Mikael Bergman ,  Bo Carlsson ,  Mats Roberg

IPC分类号： F02B25/22 ,  F02B75/02 ,  F02M23/03 ,  F02M17/40

CPC分类号： F02M23/03 ,  F02B25/22 ,  F02B2075/025 ,  Y02T10/146 ,  Y10S261/01

摘要： Flange assembly for supporting a structure that provides scavenging air supply to an internal combustion engine at the carburetor to the engine. The assembly includes a thin-body flange that is configured to be abuttingly installed upon an end surface of the carburetor. The carburetor has its combustion air intake 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 also contributes to its low-impact as a modification to air inlet arrangement. A combustion air aperture is provided that extends through the thin-body flange. The combustion air aperture 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 also extends through the thin-body flange and is spaced apart from the combustion air aperture. A valve assembly is operatively coupled to the thin-body flange and has a valve element positioned at the scavenging air aperture for opening and closing the scavenging air aperture.

摘要翻译： 用于支撑结构的法兰组件，所述结构向所述发动机的化油器内部的内燃机提供扫气。 组件包括被构造成邻接地安装在化油器的端面上的薄体凸缘。 化油器的燃烧空气进口或端口暴露在外表面，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。 燃烧空气孔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。 清扫空气孔也延伸穿过薄体法兰并与燃烧空气孔隔开。 阀组件可操作地联接到薄体凸缘并且具有定位在扫气空气孔处的阀元件，用于打开和关闭扫气孔。

公开(公告)号：US08950381B2

公开(公告)日：2015-02-10

申请号：US12922951

申请日：2008-03-17

申请人： Mikael Larsson ,  Bo Carlsson ,  Björn Landén ,  Mats Lavenius

发明人： Mikael Larsson ,  Bo Carlsson ,  Björn Landén ,  Mats Lavenius

IPC分类号： F02M51/00 ,  F02D37/02 ,  F02D9/10 ,  F02D11/10 ,  F02D35/00 ,  F02M17/12 ,  F16K31/08 ,  F16K37/00 ,  G01D5/249 ,  F02B63/02 ,  F02D41/06 ,  F02D41/08 ,  F02M17/04

CPC分类号： F02D37/02 ,  F02B63/02 ,  F02D9/105 ,  F02D9/1055 ,  F02D11/106 ,  F02D35/0007 ,  F02D35/0053 ,  F02D41/067 ,  F02D41/08 ,  F02D2200/0404 ,  F02D2400/06 ,  F02D2400/14 ,  F02M17/04 ,  F02M17/12 ,  F16K31/082 ,  F16K37/0033 ,  F16K37/0041 ,  G01D5/2492 ,  Y10T137/87507

摘要： A fuel supply unit (1) is provided e.g. a carburetor or a low pressure injection system of an internal combustion engine. The fuel supply unit (1) includes a main air passage (3), which has a throttle valve (8, 9) mounted therein and the throttle valve (8, 9) includes a throttle shaft (8) extending between two to one another opposite located shaft sides (6, 7). A control module (2) for the fuel supply (2) is mounted to one (7) of the shaft sides (6, 7), which control module (2) includes throttle position detecting means (30; 300) for monitoring the position of the throttle valve (8, 9), and fuel valve means (60) for controlling the fuel supply to the main air passage (3). Also, an ignition system is provided which is able to control the ignition timing with respect to status of the at least one of the means (30; 300, 40, 60, 100) in the control module (2) in order to at least control the idle speed of the engine. The ignition system further being arranged to power at least one of the means (30; 300, 40, 60, 100) of the control module (2).

摘要翻译： 燃料供给单元（1） 内燃机的化油器或低压喷射系统。 燃料供给单元（1）包括主空气通路（3），其具有安装在其中的节流阀（8,9），并且节流阀（8,9）包括在彼此之间延伸的节流轴（8） 相对的位置轴侧（6,7）。 一个用于燃料供给装置（2）的控制模块（2）安装在一个（7）轴侧（6,7）上，该控制模块（2）包括节气门位置检测装置（30; 300） 的节流阀（8,9）和用于控制向主空气通路（3）供给的燃料的燃料阀装置（60）。 而且，提供一种点火系统，其能够相对于控制模块（2）中的至少一个装置（30; 300,40,60,100）的状态来控制点火正时，以至少 控制发动机的怠速。 点火系统还被布置成为控制模块（2）的装置（30; 300,40,60,100）中的至少一个供电。

公开(公告)号：US08702561B2

公开(公告)日：2014-04-22

申请号：US12528218

申请日：2008-02-21

申请人： Tore Aronsson ,  Bo Carlsson ,  Göran Dahlberg ,  Gustaf Döragrip

发明人： Tore Aronsson ,  Bo Carlsson ,  Göran Dahlberg ,  Gustaf Döragrip

IPC分类号： F16H61/662

CPC分类号： B27B5/38 ,  F16D49/18 ,  F16D2121/14

摘要： The present invention is related to a retarding device for a hand held cutting machine having a housing (1) and a drive engine, which drives a transmission including a number of transmission members (3′, 2) and driving a rotational or semi rotational cutting tool. The retarding device includes brake means (12, 17) arranged to be in close relation with the transmission and for actuating a retarding force on a transmission member (2), the brake means being arranged to automatically put a retarding force on said transmission member when the speed of rotation or the torque of rotation of said transmission member falls below a predetermined value.

摘要翻译： 本发明涉及一种具有壳体（1）和驱动发动机的手持式切割机的延迟装置，其驱动包括多个传动部件（3'，2）的传动装置，并且驱动旋转或半旋转切割 工具。 减速装置包括布置成与变速器紧密相关并且用于致动传动构件（2）上的阻力的制动装置（12,17），该制动装置被布置成当所述制动装置自动地在所述传动构件上施加阻力， 所述传动构件的旋转速度或转动转矩低于预定值。

公开(公告)号：US20100140025A1

公开(公告)日：2010-06-10

申请号：US12528218

申请日：2008-02-21

申请人： Tore Aronsson ,  Bo Carlsson ,  Göran Dahlberg ,  Göran Doragrip

发明人： Tore Aronsson ,  Bo Carlsson ,  Göran Dahlberg ,  Göran Doragrip

IPC分类号： F16D63/00

CPC分类号： B27B5/38 ,  F16D49/18 ,  F16D2121/14

摘要： The present invention is related to a retarding device for a hand held cutting machine having a housing (1) and a drive engine, which drives a transmission including a number of transmission members (3′, 2) and driving a rotational or semi rotational cutting tool. The retarding device includes brake means (12, 17) arranged to be in close relation with the transmission and for actuating a retarding force on a transmission member (2), the brake means being arranged to automatically put a retarding force on said transmission member when the speed of rotation or the torque of rotation of said transmission member falls below a predetermined value.

摘要翻译： 本发明涉及一种具有壳体（1）和驱动发动机的手持式切割机的延迟装置，其驱动包括多个传动部件（3'，2）的传动装置，并且驱动旋转或半旋转切割 工具。 减速装置包括布置成与变速器紧密相关并且用于致动传动构件（2）上的阻力的制动装置（12,17），该制动装置被布置成当所述制动装置自动地在所述传动构件上施加阻力， 所述传动构件的旋转速度或转动转矩低于预定值。

公开(公告)号：US08333174B2

公开(公告)日：2012-12-18

申请号：US12679276

申请日：2007-09-21

申请人： Bo Carlsson ,  Mikael Larsson

发明人： Bo Carlsson ,  Mikael Larsson

IPC分类号： F02M3/00

CPC分类号： F02D35/0053 ,  F02D31/008 ,  F02D41/0097 ,  F02D2041/2027 ,  F02D2041/286 ,  F02D2200/101

摘要： Method for controlling fuel metering in a carburetor or a low pressure injection system of an internal combustion engine when the engine is operating at idle speed, the method includes the steps of: a) monitoring the engine speed; b) determining a first variable (A) based on a first moving average algorithm using the monitored engine speed as input data; c) determining a second variable (B) based on a second moving average algorithm using the monitored engine speed as input data, where the first moving average algorithm is arranged to react faster to an engine speed change than the second moving average algorithm; d) comparing the second variable (B) to the first variable (A), where if 1) the second variable (B) is higher than the first variable (A): the fuel metering is set in a first leaner setting, and where if 2) the second variable (B) is lower than the first variable (A): the fuel metering is set in a second richer setting.

摘要翻译： 该方法包括以下步骤：a）监测发动机转速;（c）监控发动机转速; b）基于使用所监视的发动机速度作为输入数据的第一移动平均算法来确定第一变量（A）; c）基于使用所监测的发动机速度作为输入数据的第二移动平均算法来确定第二变量（B），其中所述第一移动平均算法被布置成比所述第二移动平均算法更快地对发动机速度变化作出反应; d）将第二变量（B）与第一变量（A）进行比较，其中如果1）第二变量（B）高于第一变量（A）：将燃料计量设置在第一稀疏设置中，并且其中 如果2）第二个变量（B）低于第一个变量（A）：燃料计量设置在第二个更加丰富的设置。