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    TWO-CYCLE ENGINE WITH EXHAUST TEMPERATURE-CONTROLLED IGNITION TIMING
    72.
    发明申请
    TWO-CYCLE ENGINE WITH EXHAUST TEMPERATURE-CONTROLLED IGNITION TIMING 有权
    具有排气温度控制点火时间的双循环发动机

    公开(公告)号：US20020152990A1

    公开(公告)日：2002-10-24

    申请号：US10123773

    申请日：2002-04-16

    Applicant: Arctic Cat, Inc.

    Inventor： Greg L. Spaulding

    IPC: F02P005/00

    CPC classification number: F02P5/1516 ,  F02B61/02 ,  F02B2075/025 ,  F02P15/001 ,  Y02T10/46

    Abstract: A two-cycle internal combustion engine has an ignition timing that varies with engine speed. A plurality of ignition patterns (the relationship between ignition timing and engine speed) are used. The engine exhaust gas temperature is sensed and is used to determine the particular ignition pattern used at a particular time.

    Abstract translation: 双循环内燃机具有随发动机转速而变化的点火正时。 使用多个点火模式（点火正时和发动机转速之间的关系）。 检测发动机废气温度，并用于确定在特定时间使用的特定点火模式。

    Controlled thrust steering system for watercraft
    73.
    发明授权
    Controlled thrust steering system for watercraft 失效
    船舶控制推力转向系统

    公开(公告)号：US6159059A

    公开(公告)日：2000-12-12

    申请号：US431444

    申请日：1999-11-01

    Applicant: Fred H. Bernier ,  Herman P. Christopherson ,  Frank Hazard

    Inventor： Fred H. Bernier ,  Herman P. Christopherson ,  Frank Hazard

    IPC: B63H11/113 ,  B63H21/22 ,  B63H25/02 ,  F02B61/04 ,  F02D9/02 ,  F02D11/02 ,  B63H11/07

    CPC classification number: B63H25/02 ,  B63H11/113 ,  B63H21/213 ,  F02B61/045 ,  F02D11/02 ,  F02D9/02

    Abstract: A watercraft of the jet propulsion type comprising a steering mechanism, a throttle control mechanism, a thrust mechanism, a throttle regulator and a controlled thrust steering system. The steering mechanism has a straight-ahead position. The steering mechanism is able to rotate in a clockwise direction from the straight-ahead position and in a counter-clockwise direction from the straight-ahead position. The throttle control mechanism is biased toward an idle position. The thrust mechanism provides jet propulsion thrust for the watercraft. The throttle regulator regulates thrust provided by the thrust mechanism. The controlled thrust steering system causes the throttle regulator to increase thrust upon the steering mechanism rotating from the straight-ahead position.

    Abstract translation: 包括转向机构，节气门控制机构，推力机构，节流调节器和受控推力转向系统的喷气推进型船只。 转向机构具有直线前进位置。 转向机构能够从直线位置沿顺时针方向从直线位置逆时针方向旋转。 节气门控制机构偏向空转位置。 推力机构为船舶提供喷气推进推力。 节流调节器调节由推力机构提供的推力。 受控推力转向系统使得节流调节器增加转向机构从直线位置旋转的推力。

    All terrain vehicle with semi-independent rear suspension
    74.
    发明授权
    All terrain vehicle with semi-independent rear suspension 失效
    全地形车辆具有半独立后悬挂

    公开(公告)号：US5845918A

    公开(公告)日：1998-12-08

    申请号：US739449

    申请日：1996-10-29

    Applicant: James E. Grinde ,  Troy Leiphart ,  Ronald Solberg

    Inventor： James E. Grinde ,  Troy Leiphart ,  Ronald Solberg

    IPC: B60G7/02 ,  B60G9/00 ,  B60G1/00

    CPC classification number: B60G7/02 ,  B60G9/00

    Abstract: An all terrain vehicle having its chassis, its front suspension, its rear axle, its rear suspension, and its power transmission shaft interconnected in a manner that allows the rear axle to rotate about both the longitudinal and a transverse axis of the all-terrain vehicle to provide increased flexibility in its rear end so that the vehicle's rear tires remain on the ground at least as long as its front tires remain on the ground when traversing relatively even terrain so that the vehicle will not transition from understeer to oversteer.

    Abstract translation: 全地形车辆具有其底盘，其前悬架，其后桥，其后悬架和其动力传递轴，其以允许后桥围绕全地形车辆的纵向和横向轴线旋转的方式互连 以提供其后端的增加的灵活性，使得车辆的后轮胎保持在地面上至少等于当横向相对均匀的地形时其前轮胎保持在地面上，使得车辆不会从转向不足转向过度转向。

    Off-road vehicle engine mounting
    75.
    发明授权
    Off-road vehicle engine mounting 有权

    公开(公告)号：US12291267B2

    公开(公告)日：2025-05-06

    申请号：US18395929

    申请日：2023-12-26

    Applicant: Arctic Cat Inc.

    Inventor： Ethan Randall Klaphake ,  Derek Sorenson ,  Todd Ethan MacDonald

    IPC: B62D21/11 ,  B60K5/00 ,  B60K5/12 ,  B62D25/08 ,  B62D27/02

    Abstract: The present disclosure relates to an off-road vehicle having different features such as an engine assembly, a frame having a frame structure, and a rear mount assembly facilitating easy installation of the engine assembly, and a method of installing the engine assembly. Embodiments of the present disclosure also describe a removable frame member facilitating the installation of the engine assembly from a seating area into a rearward portion of the vehicle. The removable frame member is positioned at least partially forward of the installed engine assembly and in a lateral direction of the vehicle. The frame structure and the rear mount assembly provide more efficient assembly of the engine and transmission assembly into a tight space envelope.

    EXHAUST VALVE CONTROLLER FOR TWO-STROKE ENGINES
    76.
    发明申请
    EXHAUST VALVE CONTROLLER FOR TWO-STROKE ENGINES 有权

    公开(公告)号：US20250052206A1

    公开(公告)日：2025-02-13

    申请号：US18230945

    申请日：2023-08-07

    Applicant: Arctic Cat Inc.

    Inventor： Carson Price ,  Jeremy Mammen ,  Cord Miller Christensen ,  Alexander Konrad Fuhrman

    IPC: F02D13/02

    Abstract: An exhaust valve includes a toroidal surface about an axis of rotation of the valve. The toroidal surface is positionable over a central exhaust port of an engine when lowered. The valve is raised by an actuator in response to increasing rotational speed of the crankshaft of the engine, thereby enlarging and raising the effective opening of the exhaust port. Lateral valve surfaces on either side of the toroidal surface close lateral exhaust ports when the valve is lowered. The lateral valve surfaces may be cylindrical and formed on fins. The position of the exhaust valve is adjusted continuously along its range of motion and the position of the exhaust valve may be calculated based on some or all of engine speed, engine loading, and exhaust temperature at a frequency up to once per revolution of the engine.

    Snowmobile frame
    78.
    发明授权
    Snowmobile frame 有权

    公开(公告)号：US12208854B2

    公开(公告)日：2025-01-28

    申请号：US18103902

    申请日：2023-01-31

    Applicant: Arctic Cat Inc.

    Inventor： David Vigen ,  Todd MacDonald ,  Benjamin Taylor Langaas ,  Marcus Moldaschel ,  Samuel J. Sandoz ,  Jacob Tyler Crosby ,  Andrew Beavis

    IPC: B62M27/02 ,  B62D65/10

    Abstract: A method of assembling two snowmobiles with a common frame includes providing a common forward frame. A first common component is provided and positioned at a first orientation or at a second orientation with respect to the common forward frame. The first common component is secured at the first orientation or at the second orientation. The method includes selecting between a first set of first model components and a second set of second model components and securing the first set of first model components or the second set of second model components.

    SEAT SUSPENSION SYSTEM FOR LIGHTWEIGHT VEHICLE
    79.
    发明申请
    SEAT SUSPENSION SYSTEM FOR LIGHTWEIGHT VEHICLE 有权

    公开(公告)号：US20240417011A1

    公开(公告)日：2024-12-19

    申请号：US18437807

    申请日：2024-02-09

    Applicant: Arctic Cat Inc.

    Inventor： Brent Gilge ,  Charles Simenson ,  Chris Evans

    IPC: B62J1/02 ,  B62K5/01

    Abstract: A seat suspension system for a seat of a lightweight vehicle, wherein the system comprises a seat frame to which a seat can be connected, one or more of seat frame mounting bracket mounted to a chassis of the vehicle; one or more mounting feet extending from a front portion of the seat frame and pivotally connectable to the one or more seat frame mounting bracket; a damping assembly mounting bracket mounted to a rear cross member of the seat frame; and a damping device assembly mounted between the chassis of the vehicle and the damping assembly mounting bracket, the damping device assembly structured and operable to dampen the transfer of movement from the chassis of the vehicle to the seat frame.

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