利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

24 条记录 (耗时 0.019 秒)

    Gas sampling method and dilution tunnel therefor
    1.
    发明授权
    Gas sampling method and dilution tunnel therefor 失效
    气体采样方法和稀释隧道

    公开(公告)号：US5450749A

    公开(公告)日：1995-09-19

    申请号：US219672

    申请日：1994-03-28

    申请人： Hans Strom ,  Roy Ekdahl ,  Edwin S. Harbuck

    发明人： Hans Strom ,  Roy Ekdahl ,  Edwin S. Harbuck

    IPC分类号： G01M15/04 ,  F02D41/14 ,  F02D45/00 ,  F02M17/04 ,  F02M19/01 ,  G01N1/22 ,  G01N33/00 ,  G01M15/00

    CPC分类号： F02M17/04 ,  G01N1/2252 ,  G01N33/0011 ,  G01N33/0016 ,  G01N33/004

    摘要： Emission gasses from an engine exhaust pipe are collected through an inlet of a dilution tunnel which is an elongated, hollow tube. The inlet is spaced from the exhaust pipe to also admit surrounding air. Ambient air and emissions are mixed in the tunnel by a screen in the tunnel. A probe in the tunnel diverts a portion of the mixture to gas analyzers. Prior to analysis the mixture may be condensed, filtered or otherwise processed. The analysis determines a CO/CO.sub.2 ratio which is used to determine the air/fuel ratio in the engine based on characteristics of the fuel. The air/fuel mixture of the engine is then adjusted to achieve desired performance.

    摘要翻译： 来自发动机排气管的排放气体通过作为细长的中空管的稀释通道的入口收集。 入口与排气管间隔开，同时也允许进入周围的空气。 环境空气和排放物通过隧道中的屏幕在隧道中混合。 隧道中的探头将一部分混合物转移到气体分析仪中。 在分析之前，可以将混合物冷凝，过滤或以其它方式处理。 该分析确定用于基于燃料的特性来确定发动机中的空气/燃料比的CO / CO 2比。 然后调整发动机的空气/燃料混合物以实现期望的性能。

    Gas sampling method and dilution tunnel therefor
    2.
    发明授权
    Gas sampling method and dilution tunnel therefor 失效
    气体采样方法和稀释隧道

    公开(公告)号：US5410907A

    公开(公告)日：1995-05-02

    申请号：US111843

    申请日：1993-08-25

    申请人： Hans Strom ,  Roy Ekdahl ,  Edwin S. Harbuck

    发明人： Hans Strom ,  Roy Ekdahl ,  Edwin S. Harbuck

    IPC分类号： F02M17/04 ,  G01N1/22 ,  G01N33/00

    CPC分类号： F02M17/04 ,  G01N1/2252 ,  G01N33/0011 ,  G01N33/0016 ,  G01N33/004

    摘要： Emission gasses from an engine exhaust pipe are collected through an inlet of a dilution tunnel which is an elongated, hollow tube. The inlet is spaced from the exhaust pipe to also admit surrounding air. The air and emissions are mixed in the tunnel by a screen in the tunnel. A probe in the tunnel diverts a portion of the mixture to gas analyzers. Prior to analysis the mixture may be condensed, filtered or otherwise processed.

    摘要翻译： 来自发动机排气管的排放气体通过作为细长的中空管的稀释通道的入口收集。 入口与排气管间隔开，同时也允许进入周围的空气。 空气和排放物通过隧道中的屏幕在隧道中混合。 隧道中的探头将一部分混合物转移到气体分析仪中。 在分析之前，可以将混合物冷凝，过滤或以其它方式处理。

    TWO-STROKE INTERNAL COMBUSTION ENGINE
    3.
    发明申请
    TWO-STROKE INTERNAL COMBUSTION ENGINE 有权
    两冲程内燃机

    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。

    Two-stroke internal combustion engine
    4.
    发明授权
    Two-stroke internal combustion engine 有权

    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).

    Internal combustion engine and method of control
    7.
    发明授权
    Internal combustion engine and method of control 有权
    内燃机及其控制方法

    公开(公告)号：US07621240B2

    公开(公告)日：2009-11-24

    申请号：US11925502

    申请日：2007-10-26

    申请人： Goran Almkvist ,  Hans Strom

    发明人： Goran Almkvist ,  Hans Strom

    IPC分类号： F02B75/20

    CPC分类号： F02D13/0276 ,  F02B1/12 ,  F02D13/0215 ,  F02D13/0253 ,  F02M26/01 ,  F02M26/21 ,  F02M26/41 ,  F02M26/42 ,  Y02T10/18

    摘要： The invention relates to an internal combustion engine comprising at least two cylinders, at each of which at least one inlet for at least one combustion ingredient is provided. The engine comprises communication means, adapted to provide communication between at least a first of the cylinders, at which a first piston is provided, and a second of the cylinders, at which a second piston is provided, during at least a part of an engine operation period starting during a movement of the first piston towards a bottom dead center (BDC) position at a work stroke of the first cylinder and ending during a movement of the first piston away from the bottom dead center (BDC) position, during which engine operation period the second piston moves towards a bottom dead center (BDC) position and/or away from the bottom dead center (BDC) position.

    摘要翻译： 本发明涉及一种内燃机，其包括至少两个气缸，每个汽缸设有用于至少一种燃烧成分的至少一个入口。 发动机包括通信装置，其适于在至少一个第一气缸（其中设置有第一活塞）和在发动机的至少一部分期间提供第二活塞的第二气缸之间提供连通 在第一活塞在第一气缸的工作行程期间朝向下止点（BDC）位置移动期间开始运行，并且在第一活塞远离下死点（BDC）位置移动期间结束， 第二活塞向下死点（BDC）位置移动和/或远离下止点（BDC）位置运行。

    Method and device for controlling a carburetor
    10.
    发明授权
    Method and device for controlling a carburetor 失效
    用于控制化油器的方法和装置

    公开(公告)号：US5345912A

    公开(公告)日：1994-09-13

    申请号：US20153

    申请日：1993-02-19

    申请人： Ulf Svensson ,  Hans Strom

    发明人： Ulf Svensson ,  Hans Strom

    IPC分类号： F02D41/02 ,  F02D35/00 ,  F02M7/12 ,  F02M17/04 ,  F02M7/00

    CPC分类号： F02D35/0053 ,  F02M17/04

    摘要： In a method and device for controlling a carburetor (1) of an i. c. engine, the A/F ratio thereof is automatically adjusted to a preferred level during varying operating conditions. An adjusting means (5) is continuously actuated by a first control unit (4) of a first control circuit (3) to provide a A/F ratio having a modified dependency on the speed of rotation. An adjusting means (9) is periodically actuated for a short period by a second control unit (7) of a second control circuit (6), said second control unit receiving speed information (8) from the engine (2), to provide a short-term change of the mixture ratio, and the change of speed of rotation caused thereby is measured. With regard to the obtained result and stored information the second control unit (7) performs an adjustment of the mixture ratio by a predetermined step towards leaner or richer mixture by actuating an adjusting means (5). This procedure is repeated in the second control circuit (6) until the change of speed of rotation indicates that the mixture ratio is at a preferred level, and this adjustment is maintained for a period of time.

    摘要翻译： 在用于控制i的化油器（1）的方法和装置中， C。 发动机，在变化的运行条件下，其A / F比自动调整到优选水平。 调节装置（5）由第一控制电路（3）的第一控制单元（4）连续致动，以提供对旋转速度具有修正依赖性的A / F比。 通过第二控制电路（6）的第二控制单元（7）周期性地调节调节装置（9），所述第二控制单元从发动机（2）接收速度信息（8），以提供一个 测量混合比的短期变化和由此引起的旋转速度的变化。 关于所获得的结果和存储的信息，第二控制单元（7）通过致动调节装置（5）来将混合比率调整到预定的步长朝向较稀或更浓的混合物。 在第二控制电路（6）中重复该过程，直到旋转速度的变化表明混合比为优选水平，并且该调整保持一段时间。