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    Cooling system in air-cooled combustion engine
    2.
    发明授权
    Cooling system in air-cooled combustion engine 有权
    风冷内燃机冷却系统

    公开(公告)号：US08881692B2

    公开(公告)日：2014-11-11

    申请号：US13281177

    申请日：2011-10-25

    Applicant: Tsuneyoshi Yuasa

    Inventor： Tsuneyoshi Yuasa

    IPC: F01P9/00 ,  F02B75/18 ,  F02F1/34 ,  F01P1/02

    CPC classification number: F01P1/02 ,  F01P2001/026

    Abstract: A top plate is provided in a top portion of a cylinder block of a combustion engine of a type, provided with a cooling fan, so as to lie perpendicular to a longitudinal axis of an engine cylinder. An intake side gasket interposed between the cylinder block and an intake unit is extended upwardly to contact the top plate to thereby seal a gap between the top plate and the intake side gasket. An exhaust side gasket interposed between the cylinder block and an exhaust unit is extended upwardly to contact the top plate to thereby seal a gap between the top plate and the exhaust side gasket. A cooling passage for passing therethrough a cooling air from the cooling fan is formed by the cylinder block, the top plate, the intake side gasket and the exhaust side gasket.

    Abstract translation: 顶板设置在具有冷却风扇的类型的内燃机的气缸体的顶部，以便垂直于发动机气缸的纵向轴线。 插入在气缸体和进气单元之间的进气侧垫圈向上延伸以接触顶板，从而密封顶板和进气侧垫圈之间的间隙。 插入在气缸体和排气单元之间的排气侧垫片向上延伸以接触顶板，从而密封顶板和排气侧垫圈之间的间隙。 用于从冷却风扇通过冷却空气的冷却通道由气缸体，顶板，进气侧垫圈和排气侧垫圈形成。

    AIR COOLED ENGINE AND ENGINE-POWERED WORK TOOL
    3.
    发明申请
    AIR COOLED ENGINE AND ENGINE-POWERED WORK TOOL 有权
    空气冷却发动机和发动机动力工具

    公开(公告)号：US20140261255A1

    公开(公告)日：2014-09-18

    申请号：US14195025

    申请日：2014-03-03

    Applicant: HITACHI KOKI CO., LTD.

    Inventor： Naoto Ichihashi

    IPC: F01P1/02

    CPC classification number: F01P1/02 ,  F01P5/06 ,  F01P2001/026 ,  F02B63/02

    Abstract: An air-cooled engine includes a cylinder provided with a plurality of cooling fins at an outer peripheral surface of the cylinder, a cooling fan, a cylinder cover covering the cylinder, an air guide plate, and an air guide portion. The air guide plate is positioned between an inner surface of the cylinder cover and the fins. The cooling fan generates cooling air stream for cooling the cylinder, and the air guide plate is configured to guide the cooling air stream to flow through a space between the inner surface of the cylinder cover and the fins. A first small space is defined between the air guide plate and the inner surface of the cylinder cover. The air guide portion covers at least a part of the first small space at an upstream side of the air guide plate in the axial direction of the drive shaft.

    Abstract translation: 一种风冷发动机包括在气缸的外周面设置有多个冷却翅片的气缸，冷却风扇，覆盖气缸的气缸盖，导气板和空气引导部。 导气板位于气缸盖的内表面和散热片之间。 冷却风扇产生用于冷却气缸的冷却空气流，并且空气引导板构造成引导冷却空气流流过气缸盖的内表面和翅片之间的空间。 在导气板和气缸盖的内表面之间限定第一小空间。 空气引导部在驱动轴的轴向上覆盖导气板的上游侧的第一小​​空间的至少一部分。

    INTERNAL COMBUSTION ENGINE AND STRADDLE-TYPE VEHICLE INCLUDING THE SAME
    4.
    发明申请
    INTERNAL COMBUSTION ENGINE AND STRADDLE-TYPE VEHICLE INCLUDING THE SAME 有权
    内燃机和包括其中的梯型车

    公开(公告)号：US20130186353A1

    公开(公告)日：2013-07-25

    申请号：US13744673

    申请日：2013-01-18

    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA

    Inventor： Satoshi KUMAGAI

    IPC: F01P1/00

    CPC classification number: F01P1/00 ,  F01P1/02 ,  F01P11/10 ,  F01P2001/026 ,  F01P2050/16

    Abstract: An engine includes a crankcase, a cylinder block, a cylinder head, a piston, a cooling fan, and a shroud having an inner wall portion and an outer wall portion. A suction port is provided in a region of the outer wall portion facing the cooling fan. The inner and outer wall portions define a duct extending from the suction port to reach at least a portion of the cylinder block and/or at least a portion of the cylinder head.

    Abstract translation: 发动机包括曲轴箱，气缸体，气缸盖，活塞，冷却风扇和具有内壁部分和外壁部分的护罩。 在面向冷却风扇的外壁部的区域设有吸入口。 内壁部分和外壁部分限定从吸入口延伸到达气缸体的至少一部分和/或气缸盖的至少一部分的管道。

    INTERNAL COMBUSTION ENGINE AND STRADDLE-TYPE VEHICLE INCLUDING THE SAME
    6.
    发明申请
    INTERNAL COMBUSTION ENGINE AND STRADDLE-TYPE VEHICLE INCLUDING THE SAME 有权
    内燃机和包括其中的梯型车

    公开(公告)号：US20130186352A1

    公开(公告)日：2013-07-25

    申请号：US13744661

    申请日：2013-01-18

    Applicant: Yamaha Hatsudoki Kabushiki Kaisha

    Inventor： Satoshi KUMAGAI

    IPC: F01P1/00

    CPC classification number: F01P1/00 ,  F01P1/02 ,  F01P5/04 ,  F01P5/12 ,  F01P7/046 ,  F01P7/084 ,  F01P11/10 ,  F01P2001/026 ,  F01P2025/66 ,  F01P2050/16

    Abstract: A forced air-cooled engine includes a crankcase, a cylinder block, a cylinder head, a cooling fan, and a shroud arranged to cover a portion of the crankcase, the cooling fan, and a portion of the cylinder block and a portion of the cylinder head. Fins are provided at least in a region of the cylinder block covered by the shroud. The shroud includes a facing wall portion that faces the fins . An exhaust opening is provided between the facing wall portion and the cylinder block, and opens away from the cooling fan.

    Abstract translation: 强制风冷发动机包括曲轴箱，气缸体，气缸盖，冷却风扇和布置成覆盖曲轴箱的一部分的冷却风扇，冷却风扇和气缸体的一部分 气缸盖。 至少在由护罩覆盖的气缸体的区域中设置有金属丝。 护罩包括面向翅片的面向壁部分。 在相对的壁部和气缸体之间设置有排气口，并且从冷却风扇开放。

    Portable Handheld Work Apparatus having an Internal Combustion Engine
    7.
    发明申请
    Portable Handheld Work Apparatus having an Internal Combustion Engine 有权
    具有内燃机的便携式手持式工作装置

    公开(公告)号：US20120291725A1

    公开(公告)日：2012-11-22

    申请号：US13458756

    申请日：2012-04-27

    Applicant: Jan Kurzenberger ,  Thorsten Hecht ,  Sebastian Hänssler ,  Stefan Kummermehr

    Inventor： Jan Kurzenberger ,  Thorsten Hecht ,  Sebastian Hänssler ,  Stefan Kummermehr

    IPC: F01P7/02

    CPC classification number: F02M31/145 ,  F01P1/02 ,  F01P1/06 ,  F01P2001/026 ,  F01P2060/10 ,  F02B63/02 ,  F02F1/30 ,  F02F1/34 ,  F02M15/02 ,  F02M35/1017 ,  F02M35/1019 ,  F02M35/10268 ,  Y02T10/126

    Abstract: In an internal combustion engine (2) of a portable handheld work apparatus, the cylinder (3) is provided with cooling ribs (4, 4′). A cooling airflow is generated by the fan wheel (13) and is guided over the cooling ribs. A carburetor (9) is temperaturized as required by the heated cooling air. A control of the cooling airflow to the carburetor (9) takes place in that an opening (11), which passes the heated cooling air, is selectively closed or opened via a closure element (12). In order to obtain improved cooling of the cylinder during summer operation as well as during winter operation, the closure element (12) is provided with at least one air guide wall which extends essentially transversely to the cooling airflow and causes this cooling air to be partially backed up and deflected.

    Abstract translation: 在便携式手持式工作装置的内燃机（2）中，气缸（3）设置有冷却肋（4,4'）。 风扇叶轮（13）产生冷却气流，并在冷却肋条上引导。 化油器（9）根据加热的冷却空气的要求进行加热。 进入化油器（9）的冷却气流的控制发生在通过加热的冷却空气的开口（11）经由闭合元件（12）选择性地关闭或打开。 为了在夏季操作期间以及在冬季操作期间获得改进的气缸冷却，封闭元件（12）设置有至少一个空气引导壁，其基本上横向于冷却气流延伸并且使该冷却空气部分地 备份和偏转。

    MOTOR-DRIVEN IMPLEMENT HAVING IMPROVED CARBURETTOR PREHEATING
    8.
    发明申请
    MOTOR-DRIVEN IMPLEMENT HAVING IMPROVED CARBURETTOR PREHEATING 审中-公开
    具有改进的加速器预热的电机驱动实现

    公开(公告)号：US20120132180A1

    公开(公告)日：2012-05-31

    申请号：US13302636

    申请日：2011-11-22

    Applicant: Christian VICK

    Inventor： Christian VICK

    IPC: F02M15/02

    CPC classification number: F02M31/06 ,  F01P1/02 ,  F01P2001/026 ,  F02B63/02 ,  F02F1/002 ,  F02F1/243 ,  F02M15/02 ,  F02M31/14 ,  F02M35/1017 ,  F02M35/1019 ,  Y02T10/126

    Abstract: A motor-driven implement such as a hand-held tool or device for garden and landscape maintenance, includes an internal combustion engine having at least one cylinder and at least one carburettor, which is disposed in a carburettor chamber, is separated by an intermediate wall from an engine compartment. A housing is provided which at least partially encloses the engine compartment so that an upper part of the cylinder extends in the direction of the housing, and a fan wheel is further provided by which means air from the engine compartment can be introduced through a warm air opening in the intermediate wall into the carburettor chamber. For the motor-driven implement to have an improved carburettor pre-heating which enables easier operation, it is proposed that the warm air opening is disposed in the area of the intermediate wall which is disposed adjacently to the upper part of the cylinder.

    Abstract translation: 诸如用于花园和景观维护的手持工具或装置的电动工具包括具有至少一个气缸和至少一个化油器的内燃机，其被设置在化油器室中，由中间壁分隔开 从发动机舱。 提供壳体，其至少部分地封闭发动机舱，使得气缸的上部沿着壳体的方向延伸，并且还设置风扇叶轮，通过该风扇叶轮，来自发动机室的空气可以通过暖空气 在中间壁开口进入化油器室。 为了使电动机具具有改进的化油器预热，其能够更容易地操作，建议将暖气开口设置在与气缸的上部相邻设置的中间壁的区域中。

    Air cooled engine and engine-powered work tool
    9.
    发明授权
    Air cooled engine and engine-powered work tool 有权
    风冷发动机和发动机动力工作工具

    公开(公告)号：US09249715B2

    公开(公告)日：2016-02-02

    申请号：US14195025

    申请日：2014-03-03

    Applicant: HITACHI KOKI CO., LTD.

    Inventor： Naoto Ichihashi

    IPC: F01P1/06 ,  F01P1/02 ,  F01P5/06 ,  F02B63/02

    CPC classification number: F01P1/02 ,  F01P5/06 ,  F01P2001/026 ,  F02B63/02

    Abstract: An air-cooled engine includes a cylinder provided with a plurality of cooling fins at an outer peripheral surface of the cylinder, a cooling fan, a cylinder cover covering the cylinder, an air guide plate, and an air guide portion. The air guide plate is positioned between an inner surface of the cylinder cover and the fins. The cooling fan generates cooling air stream for cooling the cylinder, and the air guide plate is configured to guide the cooling air stream to flow through a space between the inner surface of the cylinder cover and the fins. A first small space is defined between the air guide plate and the inner surface of the cylinder cover. The air guide portion covers at least a part of the first small space at an upstream side of the air guide plate in the axial direction of the drive shaft.

    Abstract translation: 一种风冷发动机包括在气缸的外周面设置有多个冷却翅片的气缸，冷却风扇，覆盖气缸的气缸盖，导气板和空气引导部。 导气板位于气缸盖的内表面和散热片之间。 冷却风扇产生用于冷却气缸的冷却空气流，并且空气引导板构造成引导冷却空气流流过气缸盖的内表面和翅片之间的空间。 在导气板和气缸盖的内表面之间限定第一小空间。 空气引导部在驱动轴的轴向上覆盖导气板的上游侧的第一小​​空间的至少一部分。

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