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1. 发明申请

WO2012176940A1 ENGINE WORKING MACHINE 审中-公开
标题翻译：发动机工作机
公开(公告)号：WO2012176940A1
公开(公告)日：2012-12-27
申请号：PCT/JP2012/066635
申请日：2012-06-22
申请人： Hitachi Koki Co., LTD. , ICHIHASHI, Naoto
发明人： ICHIHASHI, Naoto
IPC分类号： F01N1/02 , F01N13/00
CPC分类号： F01N13/002 , F01N1/02 , F01N2230/04 , F01N2260/18 , F01N2340/00 , F01N2590/06
摘要： To provide an engine working machine which is capable of reducing an exhaust sound while maintaining a compact size and a sufficient engine output and is also capable of reducing a vibration sound generated by a vibration of a wall surface of a muffler. An engine (36) is configured such that: a driving shaft direction of the engine (Y-direction), an opening direction of an exhaust port (Z-direction), and an operation direction of a piston (X-direction) are substantially perpendicular to each other; a muffler (4) is fastened to a proximity of an exhaust port (24) of the engine (36); the muffler (4) has a shape extending in a vertical direction and is extended toward a downward direction lower than a vertical plane (72) passing a lower end portion of a cylinder; and the muffler (4) has a protrusion portion (32) protruding towards a center direction of the engine (36) so as to obtain a volume corresponding to a space (64). Since the muffler (4) is largely extended in a downward direction, a fuel tank (22) is provided to be offset to a left side (- Z-direction), and a left end portion of the fuel tank is extended upward like an arrow (80) so as to obtain a volume corresponding to a space (68).
摘要翻译：提供能够减小排气声音同时保持紧凑的尺寸和足够的发动机输出并且还能够减少由消音器的壁表面的振动产生的振动声的发动机工作机。发动机（36）构成为：发动机的驱动轴方向（Y方向），排气口的开口方向（Z方向）和活塞的运行方向（X方向）基本上彼此垂直; 消音器（4）紧固到发动机（36）的排气口（24）附近; 消声器（4）具有在垂直方向上延伸的形状，并且向下方向延伸，该向下方向低于通过气缸的下端部的垂直面（72）; 并且所述消音器（4）具有朝向所述发动机（36）的中心方向突出的突出部（32），以获得与空间（64）对应的体积。由于消声器（4）在向下方向上大幅度地延伸，所以燃料箱（22）设置成向左侧（-Z方向）偏移，并且燃料箱的左端部向上延伸，如箭头（80），以获得对应于空间（68）的体积。

2. 发明申请

WO2013042535A1 ENGINE AND ENGINE-OPERATED WORKING MACHINE 审中-公开
标题翻译：发动机和发动机操作机
公开(公告)号：WO2013042535A1
公开(公告)日：2013-03-28
申请号：PCT/JP2012/072533
申请日：2012-08-29
申请人： Hitachi Koki Co., LTD. , ICHIHASHI, Naoto
发明人： ICHIHASHI, Naoto
IPC分类号： F01N13/00
CPC分类号： F01P5/04 , F01N3/046 , F01N3/055 , F01N13/002 , F01N2590/06 , F01P1/06 , F01P2060/16 , F02B63/02 , H02K9/06 , Y02T10/16 , Y02T10/20
摘要： To provide an engine having a muffler cooling structure capable of efficiently shielding the muffler cover from the waste heat of a muffler while effectively cooling the muffler by both of forced air cooling and natural air cooling. In an engine (1) including a cooling fan provided at one end of a drive shaft and cools the engine, a muffler (9) is attached such that a longitudinal direction thereof coincide with a direction of gravity, and a muffler accommodating chamber (30) is formed by a muffler cover (2) for covering the muffler (9). A portion of cooling air generated by the cooling fan is introduced into the muffler accommodating chamber (30) so as to cool the muffler. At the muffler accommodating chamber (30), a cooling air outlet (11) is provided at an upper end of a cooling passage (13), such that the waste heat of the muffler (9) is discharged from the cooling air outlet (11) to the outside during the stop of the engine. A cooling air inlet (18) is disposed below the cooling air outlet (11), such that the cooling air flows from the lower side to the upper side of the muffler (9).
摘要翻译：提供具有消声器冷却结构的发动机，能够有效地将消声器罩与消音器的废热进行屏蔽，同时通过强制空气冷却和自然空气冷却有效地冷却消音器。在包括设置在驱动轴的一端的冷却风扇并冷却发动机的发动机（1）中，将消音器（9）安装成使其长度方向与重力方向一致，并且消声器容纳室（30 ）由用于覆盖消音器（9）的消音器罩（2）形成。由冷却风扇产生的冷却空气的一部分被引入到消声器容纳室（30）中以便冷却消音器。在消声器收纳室30中，在冷却通路13的上端设有冷却风出口11，消声器9的废热从冷却风出口11排出）在发动机停止期间到达外部。冷却空气入口（18）设置在冷却空气出口（11）的下方，使得冷却空气从消声器（9）的下侧流向上侧。

3. 发明申请

WO2011136391A1 ENGINE AND ENGINE OPERATING MACHINE INCLUDING THE SAME 审中-公开
标题翻译：发动机和发动机操作机器，包括它们
公开(公告)号：WO2011136391A1
公开(公告)日：2011-11-03
申请号：PCT/JP2011/060797
申请日：2011-04-28
申请人： Hitachi Koki Co., LTD. , KAMIMURA, Junichi , MURAKAMI, Takuhiro , ICHIHASHI, Naoto , KANAYA, Kentarou
发明人： KAMIMURA, Junichi , MURAKAMI, Takuhiro , ICHIHASHI, Naoto , KANAYA, Kentarou
IPC分类号： F02M1/16
CPC分类号： F02M1/16
摘要： An engine including: a cylinder block formed with a cylinder bore; a carburetor including, a fuel storage portion that stores fuel supplied from a fuel tank via a fuel supply path and supplies the fuel to a suction path, and a fuel discharge path that discharges fuel overflowed from the fuel storage portion; a starting fuel supply device including, a starting fuel storage chamber that is provided on a fuel route defined by the fuel tank and the carburetor and stores a predetermined amount of fuel, a fuel delivery portion that delivers the fuel in the starting fuel storage chamber to a starting fuel supply path connected to the suction path or the cylinder bore, and a fuel return path that discharges the fuel overflowed from the starting fuel storage chamber; and a notifying portion that visually notifies that the starting fuel storage chamber is filled with fuel.
摘要翻译：一种发动机，包括：气缸体，其形成有气缸孔; 一种化油器，包括燃料储存部分，其储存经由燃料供给路径从燃料箱供给的燃料并将燃料供给到吸入路径;以及燃料排出路径，其排出从燃料收容部溢出的燃料; 起动燃料供给装置，包括：起动燃料储存室，设置在由燃料箱和化油器限定的燃料路径上并储存预定量的燃料;燃料输送部，其将起动燃料储存室内的燃料输送到连接到吸入路径或气缸孔的起始燃料供给路径和排出从起动燃料储存室溢出的燃料的燃料返回路径; 以及通知部，其目视地通知起动燃料存储室充满燃料。

4. 发明申请

WO2011121930A2 TWO-CYCLE ENGINE AND ENGINE TOOL COMPRISING THE SAME 审中-公开
标题翻译：双循环发动机和包括其的发动机工具
公开(公告)号：WO2011121930A2
公开(公告)日：2011-10-06
申请号：PCT/JP2011/001637
申请日：2011-03-18
申请人： HITACHI KOKI CO., LTD. , ICHIHASHI, Naoto
发明人： ICHIHASHI, Naoto
IPC分类号： F02B33/12
CPC分类号： F02B33/12 , F02B3/06 , F02B25/00 , F02B25/14 , F02B33/28 , F02B63/02 , F02B2075/025 , F02B2700/037 , F02M35/10262 , Y02T10/146
摘要： The two-cycle engine comprises a first scavenging opening and second scavenging opening on the inner peripheral wall of a cylinder bore, and a first scavenging passage and second scavenging passage connecting the first scavenging opening and second scavenging opening to the crank chamber. The first and second scavenging passages are provided with an outflow direction change device directing the outflow of an air-fuel mixture flowing out from near the top dead center of the first and second scavenging openings into the cylinder bore and the outflow of the air-fuel mixture flowing out from near the bottom dead center of the first and second scavenging openings into the cylinder bore in different directions.
摘要翻译：双循环发动机包括在气缸孔的内周壁上的第一扫气孔和第二扫气孔，以及将第一扫气孔和第二扫气孔连接到曲柄室的第一扫气通道和第二扫气通道。第一和第二清扫通道设置有流出方向改变装置，其引导从第一和第二扫气孔的上死点附近流出的空气燃料混合物的流出到气缸孔中，并且空气燃料的流出混合物从第一和第二扫气孔的下死点附近流出到不同方向的气缸孔中。

5. 发明申请

WO2015083380A1 air-cooled engine and engine working MACHINE 审中-公开
标题翻译：风冷发动机和发动机加工机
公开(公告)号：WO2015083380A1
公开(公告)日：2015-06-11
申请号：PCT/JP2014/006069
申请日：2014-12-04
申请人： HITACHI KOKI CO., LTD.
发明人： ICHIHASHI, Naoto , KAWAGUCHI, Takefumi , KUGENUMA, Jun
IPC分类号： F01N3/10 , F01N13/00 , F01N13/14 , F01P1/02 , F01P1/06 , F01N1/14
CPC分类号： F01P1/06 , F01N1/14 , F01N3/10 , F01N13/002 , F01N13/14 , F01N13/141 , F01N13/143 , F01N2230/04 , F01N2260/022 , F01N2260/20 , F01N2590/06 , F01P1/02 , F01P5/04 , F01P2001/023 , F02B63/02 , F02B75/02 , F02B2075/025
摘要： An air-cooled engine includes a muffler (8) that is attached to an exhaust port of a cylinder (2) and a fan case (9) that houses a cooling fan (18), and a cylinder cooling room (34) is formed by a cylinder cover that houses the cylinder (2). A muffler cooling room (35) is formed by a first muffler cover (11) that covers at least some of the muffler (8) through a clearance and a second muffler cover (12) that covers at least some of the first muffler cover (11) through a clearance. Some of cooling air generated by the cooling fan (18) is supplied to the muffler cooling room (35). The cooling air is supplied to at least one of a first space (32A) between the muffler (8) and the first muffler cover (11) and a second space (32B) between the first muffler cover (11) and the second muffler cover (12).
摘要翻译：风冷发动机包括安装在气缸（2）的排气口的消声器（8）和容纳冷却风扇（18）的风扇壳体（9），并且形成有气缸冷却室（34）通过容纳气缸（2）的气缸盖。消音器冷却室（35）由第一消声器盖（11）形成，第一消音器罩（11）通过间隙覆盖消声器（8）中的至少一些，以及覆盖至少一些第一消音器罩 11）通过清关。由冷却风扇（18）产生的一些冷却空气被供给到消音器冷却室（35）。冷却空气被供给到消声器（8）和第一消声器罩（11）之间的第一空间（32A）和第一消声器罩（11）与第二消音器罩（12）。

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