公开(公告)号：US20030051697A1

公开(公告)日：2003-03-20

申请号：US10245360

申请日：2002-09-18

Applicant: KIORITZ CORPORATION

Inventor： Yumin Liu

IPC: F01M001/00

CPC classification number: F02B63/02 ,  F01M5/002 ,  F01M9/101 ,  F01M9/102 ,  F01P1/02 ,  F01P1/08 ,  F01P1/10 ,  F01P5/02 ,  F02B75/16 ,  F02B2075/027

Abstract: The present invention relates to a cooling system for an OHC type four-stroke cycle internal combustion engine in which a valve chamber is lubricated by oil mist. This cooling system includes an accommodating space accommodating a transmission mechanism for transmitting the rotational movement of a crankshaft to a camshaft in the valve chamber, a blower fan rotatably driven by the crankshaft, and a cooling air channel extending between a combustion chamber and the valve chamber disposed above the combustion chamber. The cooling air channel includes a primary air channel formed between intake and exhaust ports. The cooling air channel extends toward a spark plug located on the downstream side of the cooling air channel. The cooling air channel also includes an air guide channel for guiding the air to an upstream inlet of the primary air channel. The air guide channel is defined by a wall which faces the upstream inlet of the primary air channel and extends laterally. The wall extends vertically in the accommodating space. Further, the wall is formed with an oil mist passage extending vertically therein.

Abstract translation: 本发明涉及一种用于OHC型四冲程循环内燃机的冷却系统，其中阀室由油雾润滑。 该冷却系统包括容纳空间，容纳用于将曲轴的旋转运动传递到阀室中的凸轮轴的传动机构，由曲轴可旋转地驱动的鼓风机风扇和在燃烧室与阀室之间延伸的冷却空气通道 设置在燃烧室上方。 冷却空气通道包括形成在进气口和排气口之间的一次空气通道。 冷却空气通道朝向位于冷却空气通道的下游侧的火花塞延伸。 冷却空气通道还包括用于将空气引导到主空气通道的上游入口的空气引导通道。 空气引导通道由面向主空气通道的上游入口并横向延伸的壁限定。 墙壁在容纳空间中垂直延伸。 此外，壁形成有在其中垂直延伸的油雾通道。

公开(公告)号：US20040206312A1

公开(公告)日：2004-10-21

申请号：US10828294

申请日：2004-04-21

Applicant: KIORITZ CORPORATION

Inventor： Yumin Liu ,  Yukio Sawadate ,  Masahiko Iizuka ,  Yoshiaki Nagao

IPC: F01P001/02 ,  F02F001/34

CPC classification number: F02B75/16 ,  F01M2011/0025 ,  F01P1/02 ,  F01P1/06 ,  F01P5/06 ,  F02B63/02 ,  F02B2075/027 ,  F02F1/04

Abstract: The present invention provides an air-cooled four-stroke internal combustion engine capable of achieving a high degree of cooling. The present invention is directed to an air-cooled four-stroke internal combustion engine including a crankshaft and a fan rotor rotatably driven by the crankshaft to generate cooling air for cooling the engine. The engine comprises an oil pan disposed below the crankshaft. A space formed below the oil pan extends in the axial direction of the crankshaft along the lower surface of the oil pan and allows a cooling air to pass therethrough. An upstream portion of the lower surface is inclined upward, toward the upstream, in a vertical section taken along the axis of the crankshaft to receive the cooling air therein.

Abstract translation: 本发明提供一种能够实现高冷却度的风冷四冲程内燃机。 本发明涉及一种风冷四冲程内燃机，其包括曲轴和由曲轴可旋转地驱动的风扇转子，以产生用于冷却发动机的冷却空气。 发动机包括设置在曲轴下方的油盘。 油盘下面形成的空间沿着油盘的下表面在曲轴的轴向方向上延伸，并允许冷却空气通过。 下表面的上游部分在沿着曲轴的轴线截取的垂直截面中朝向上游向上倾斜，以在其中接收冷却空气。

公开(公告)号：US20030047157A1

公开(公告)日：2003-03-13

申请号：US10232310

申请日：2002-09-03

Applicant: KIORITZ CORPORATION

Inventor： Yumin Liu

IPC: F01M001/00

CPC classification number: F01M13/02 ,  F01M13/00

Abstract: The present invention relates to a four-stroke cycle internal combustion engine in which lubrication oil is atomized to generate oil mist so as to lubricate an internal mechanism of the engine with the oil mist. The four-stroke cycle internal combustion engine includes an oil-mist breather in fluid communication with a fuel tank of the engine. Any oil mist remaining after the lubrication of the internal mechanism is discharged into the fuel tank 14 through the oil-mist breather 22. Since no oil mist remains in the oil-mist breather the air filter of the engine is not contained by the oil mist.

Abstract translation: 本发明涉及一种四冲程循环内燃机，其中润滑油被雾化以产生油雾，以便用油雾润滑发动机的内部机构。 四冲程循环内燃机包括与发动机的燃料箱流体连通的油雾通气器。 在内部机构的润滑之后残留的任何油雾通过油雾通气器22排放到燃料箱14中。由于油雾通气孔中没有油雾，所以发动机的空气过滤器不被油雾 。