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    Air-cooled, reciprocating piston, internal combustion engine with cylinder heads forming arcuate or S-shaped cooling ducts therebetween
    1.
    发明授权
    Air-cooled, reciprocating piston, internal combustion engine with cylinder heads forming arcuate or S-shaped cooling ducts therebetween 失效
    空气冷却往复式活塞，内燃机与缸盖在其间形成弓形或S形冷却管道

    公开(公告)号：US4515111A

    公开(公告)日：1985-05-07

    申请号：US601961

    申请日：1984-04-19

    申请人： Wilhelm Vosmeyer ,  Roderick Cole ,  Pavel J. Slezak

    发明人： Wilhelm Vosmeyer ,  Roderick Cole ,  Pavel J. Slezak

    IPC分类号： F01P1/02 ,  F02F1/34

    CPC分类号： F01P1/02 ,  F02F1/34

    摘要： An air-cooled, reciprocating piston, internal combustion engine which includes at least one cylinder head which includes inlet and exhaust ducts having inlet and exhaust valves with stems, the stems extending parallel to one another, said valve stems being oriented with respect to a longitudinal axis of the engine such that a plane passing therethrough will lie at an acute angle to the longitudinal axis of the engine. The external walls of the cylinder heads which provide the inlet and exhaust ducts, together with a central area arranged between the ducts, form, in the cylinder head section facing away from the cylinder, at least one arcuate or S-shaped cooling air duct when positioned adjacent a similarly constructed cylinder head.

    摘要翻译： 一种空气冷却往复活塞的内燃机，其包括至少一个气缸盖，所述气缸盖包括具有带杆的入口和排气阀的入口和排气管，所述阀杆彼此平行延伸，所述阀杆相对于纵向 使得穿过其中的平面将与发动机的纵向轴线成锐角。 提供入口和排气管道的气缸盖的外壁以及布置在管道之间的中心区域在气缸盖部分中背离气缸形成至少一个弓形或S形冷却风道， 定位在类似构造的气缸盖附近。

    Portable Handheld Work Apparatus having an Internal Combustion Engine
    6.
    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

    申请人： Jan Kurzenberger ,  Thorsten Hecht ,  Sebastian Hänssler ,  Stefan Kummermehr

    发明人： Jan Kurzenberger ,  Thorsten Hecht ,  Sebastian Hänssler ,  Stefan Kummermehr

    IPC分类号： F01P7/02

    CPC分类号： 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

    摘要： 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.

    摘要翻译： 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。

    Air-cooled multi-cylinder internal combustion engine
    7.
    发明授权
    Air-cooled multi-cylinder internal combustion engine 失效
    风冷多缸内燃机

    公开(公告)号：US4660512A

    公开(公告)日：1987-04-28

    申请号：US778189

    申请日：1985-09-20

    申请人： Robert Binder ,  Michael Beer

    发明人： Robert Binder ,  Michael Beer

    IPC分类号： F01P1/02 ,  F01P5/06 ,  F02B75/18 ,  F02B75/24 ,  F02F1/04 ,  F02F1/06 ,  F02F1/34

    CPC分类号： F02F1/34 ,  F02B75/243 ,  F02F1/065 ,  F02B2075/1824

    摘要： An air-cooled multi-cylinder internal combustion engine includes cylinder heads cast together in a cylinder head casting; the cylinder heads are cooled from the inside by an S-shaped air flow extending between the valves. The cooling air thereby flows-in through an inlet channel at the inlet side of the cylinder heads, is deflected through 90.degree. in a central connecting channel and after a once-more 90.degree. deflection flows into the atmosphere through outlet channels which are formed between the individually cast exhaust gas outlet channels.

    摘要翻译： 一种风冷式多缸内燃机，其包括在气缸盖铸造中一起铸造的气缸盖; 气缸盖从内部被在阀之间延伸的S形气流冷却。 冷却空气通过入口通道在气缸盖的入口侧流入，在中心连接通道中偏转90°，并且经过一个以上的90°偏转通过出口通道流入大气中， 单独排放废气出口通道。

    Engine cooling system
    8.
    发明授权
    Engine cooling system 失效
    发动机冷却系统

    公开(公告)号：US3841278A

    公开(公告)日：1974-10-15

    申请号：US16271771

    申请日：1971-07-14

    申请人： FREHE D

    发明人： FREHE D

    IPC分类号： F02F1/34 ,  F02F1/32

    CPC分类号： F02F1/34

    摘要： 1. IN AN AIR-COOLED ENGINE OF THE MULTICYCLE INTERNAL COMBUSTION TYPE HAVING A CYLINDER AND A COMBUSTION CHAMBER, AND INCLUDING AN INTAKE AND EXHAUST VALVE ARRANGED ONE BEHIND THE OTHER RELATIVE TO A STREAM OF COOLING AIR, THE IMPROVEMENT COMPRISING MEANS FORMING AN INTAKE CHANNEL IN THE HEAD OF SAID CYLINDER AND AN EXHAUST CHANNEL, SAID CHANNELS BEING SEPARATED, ONE FROM THE OTHER, AND FORMING AN AIR PASSAGEWAY THEREBETWEEN AND AT ONE SIDE OF SAID REARMOST VALVE, AND MEANS FOR DIRECTING COOLING AIR AROUND BOTH THE INTAKE AND EXHAUST VALVES, ALONG A LINE GENERALLY PARALLEL TO THE LINE OF SAID INTAKE AND EXHAUST CHANNELS, AND MEANS FOR DIVIDING THE STREAM OF COOLING AIR AROUND THE REARMOST VALVE TO PROVIDE AIR FLOW THROUGH SAID PASSAGEWAY AROUND SAID ONE SIDE OF SAID REARMOST VALVE AND AROUND THE OTHER SIDE OF SAID REARMOST VALVE, SAID DIVIDER ELEMENT BEING POSITIONED TO PROVIDE A SUBSTANTIALLY EQUAL FLOW OF AIR AROUND EACH SIDE OF THE REARMOST VALVE, SAID INTAKE CHANNEL TERMINATING WITH A CHARGE RECEIVING PORT, SAID PORT FACING IN A DIRECTION GENERALLY PERPENDICULAR TO SAID LINE OF COOLING AIR FLOW.