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    Two-Stroke Engine, and Handheld Power Tool
    1.
    发明申请
    Two-Stroke Engine, and Handheld Power Tool 有权

    公开(公告)号：US20220298961A1

    公开(公告)日：2022-09-22

    申请号：US17619639

    申请日：2020-06-15

    申请人： HUSQVARNA AB

    发明人： Markus Hedberg ,  Niklas Enander ,  Tobias Stalfors

    IPC分类号： F02B63/02 ,  F02B33/04 ,  F02B25/22

    摘要： A two-stroke engine (1) is disclosed comprising a cylinder (2), a piston (3) arranged to reciprocate in the cylinder (2), a crankcase (5), a fuel injector (7) configured to inject fuel into the crankcase (5), an air inlet (9) connected to the crankcase (5), and a stratified scavenging intake (11) connected to the cylinder (2). The engine (1) comprises a throttle (13) configured to control the amount of air supplied to the air inlet (9) and to the stratified scavenging intake (11). The present disclosure further relates to handheld power tool (50) comprising an engine (1).

    POWER TOOL
    2.
    发明公开
    POWER TOOL 审中-公开

    公开(公告)号：US20240058939A1

    公开(公告)日：2024-02-22

    申请号：US18278541

    申请日：2022-02-25

    申请人： HUSQVARNA AB

    发明人： Tobias Stalfors

    IPC分类号： B25F5/02 ,  G01K7/16 ,  G01R19/00

    CPC分类号： B25F5/02 ,  G01K7/16 ,  G01R19/0084 ,  B27B17/08

    摘要： A hand-held power tool (1) is disclosed comprising a tool (2) and a motor assembly (3). The power tool (1) further comprises an actuator (5), a light emitting device (7) arranged on or adjacent to the actuator (5), and a control arrangement (21). The control arrangement (21) is configured to enable or disable operation of the motor assembly (3) based on input from the actuator (5). The control arrangement (21) is configured to obtain fault data indicative of an at least potential operational fault of the power tool (1). The control arrangement (21) is further configured to cause the light emitting device (7) to output a first type of signal when no fault data is obtained, and to cause the light emitting device (7) to output a second type of signal, being distinguishable from the first type of signal, when fault data is obtained.