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    • 46. 发明专利
    • Two-stroke internal combustion engine
    • 两冲程内燃机
    • JP2012077756A
    • 2012-04-19
    • JP2011280107
    • 2011-12-21
    • Husqvarna Abフスクバルナ アクティエボラーグ
    • ANDERSSON LARSDAHLBERG GOERANJOHNSON BOSTROEM HANS
    • F02F3/24F02B25/14F02B25/16F02B25/18F02B25/22F02B33/04F02B63/02F02B75/02F02F1/22
    • F02F1/22F02B25/14F02B25/22F02B33/04F02B63/02F02B2075/025F02F3/24
    • PROBLEM TO BE SOLVED: To provide a two-stroke internal combustion engine having many advantages by remarkably reducing problems thereof.SOLUTION: In a crankcase scavenged two-stroke internal combustion engine, a piston ported air passage is arranged between an air inlet and the upper part of a number of transfer ducts. The air inlet is equipped with a restriction valve which is controlled by at least one engine parameter, for instance carburetor throttle control. The air inlet extends via at least one connecting duct to at least one connecting port in the engine's cylinder wall. The connecting port is connected with flow paths embedded in the piston in connection with piston positions at the top dead center. The connecting port is arranged so as to extend to the upper part of a number of transfer ducts. Each flow path through the piston is arranged so that a recess in the piston to be engaged with each transfer duct port is arranged, and so as to supply air for the period substantially equal to or longer than the period counted by the crank angle or the time of the intake.
    • 要解决的问题:通过显着地减少其问题,提供具有许多优点的二冲程内燃机。 解决方案:在曲轴箱清扫的二冲程内燃机中,在空气入口和多个输送管道的上部之间布置有活塞端口空气通道。 进气口配备有限制阀,其由至少一个发动机参数控制,例如化油器节气门控制。 空气入口通过至少一个连接管道延伸到发动机气缸壁中的至少一个连接端口。 连接端口与嵌在活塞中的流路连接,与上止点处的活塞位置相连。 连接端口布置成延伸到多个输送管道的上部。 通过活塞的每个流动路径被布置成使得与每个传送管道端口接合的活塞中的凹部被布置,以便将空气供给大致等于或大于由曲柄角度计数的周期或 摄入时间 版权所有(C)2012,JPO&INPIT
    • 47. 发明专利
    • Guide bar
    • 指导酒吧
    • JP2012000999A
    • 2012-01-05
    • JP2011202673
    • 2011-09-16
    • Husqvarna Abフスクバルナ アクティエボラーグ
    • HERMANSSON ROGERFLATEN JOHNEKRUD LENNARTBERGET TERJE
    • B27B17/00B27B17/02
    • B27B17/025Y10T83/909
    • PROBLEM TO BE SOLVED: To provide a new type guide bar where an adhesive bonds respective layers to one another.SOLUTION: The invention relates to a device in a guide bar (10) for a chain saw. The guide bar (10) includes at least two layers (11, 12, 13) that are bounded by an adhesive. To ensure that the layer of the adhesive gets the optimal thickness, one of the surfaces of the layers that are bounded to each other is provided with several protruding parts (17). The protruding parts (17) provides a slot, with the same width as the height of the protruding parts, for the adhesive when the respective layers are pressed together. This is important to ensure maximum strength in the bounding as well as a constant width of a groove part (14) for the saw chain.
    • 要解决的问题:提供一种新型导向杆,其中粘合剂将各层彼此粘合。 解决方案:本发明涉及一种用于链锯的导杆(10)中的装置。 引导杆(10)包括由粘合剂界定的至少两层(11,12,13)。 为了确保粘合剂层达到最佳厚度,彼此界定的层的一个表面设置有若干突出部分(17)。 当各个层压在一起时,突出部分(17)为粘合剂提供与突出部分的高度相同的宽度的槽。 这对于确保锯链的槽部分(14)的边界的最大强度以及恒定宽度是重要的。 版权所有(C)2012,JPO&INPIT