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71. 发明授权

US09938889B2 Two-stroke engine 有权
公开(公告)号：US09938889B2
公开(公告)日：2018-04-10
申请号：US14640674
申请日：2015-03-06
申请人： HONDA MOTOR CO., LTD.
发明人： Mashu Kurata , Toru Kawai
IPC分类号： F02M67/02 , F02B25/02 , F02B25/22 , F02B75/02
CPC分类号： F02B25/02 , F02B25/22 , F02B2075/025
摘要： A two-stroke engine includes: an intake passage that opens out to a crank chamber; a first one-way valve provided in the intake passage and permits a flow of fluid toward the crank chamber; a scavenging port having an upstream end communicating with the crank chamber and a downstream end that opens out in a wall defining a side portion of a cylinder, wherein the downstream end communicates with a combustion chamber defined above the piston at least when the piston is at a bottom dead center, and communicates with a part of the cylinder below the piston at least when the piston is at a top dead center; and an air supply passage that communicates a part of the intake passage which is located downstream of the first one-way valve with an upstream portion of the scavenging port so as to supply air to the scavenging port during air intake.

72. 发明授权

US09869235B2 Stratified scavenging two-stroke engine 有权
公开(公告)号：US09869235B2
公开(公告)日：2018-01-16
申请号：US14850452
申请日：2015-09-10
申请人： MAKITA CORPORATION
发明人： Yoshiaki Takayanagi
IPC分类号： F02B25/14 , F02B25/20 , F02F3/24 , F02B25/22 , F02B43/02 , F02F7/00 , F02B33/04 , F02B33/30 , F02M35/10 , F02B75/02
CPC分类号： F02B25/20 , F02B25/14 , F02B25/22 , F02B33/04 , F02B33/30 , F02B43/02 , F02B75/02 , F02B2075/025 , F02B2700/037 , F02F3/24 , F02F7/0036 , F02M35/1017 , F02M35/10275
摘要： A stratified scavenging two-stroke engine includes a first scavenging passage that extends from a first scavenging intake that opens to the inside of the crankcase to a scavenging port that opens to the inside of a cylinder, and a second scavenging passage that branches from the first scavenging passage and extends to a second scavenging intake that opens to the inside of the crankcase. An air passage is provided to supply air for pre-scavenging into the first scavenging passage at a position closer to the first scavenging intake than a position at which the second scavenging passage branches from the first scavenging passage. A first check valve inhibits a flow of air from the first scavenging passage during an upward stroke of the piston, and a second check valve inhibits a flow of air and a gaseous mixture from the first scavenging passage during a downward stroke of the piston.

73. 发明申请

US20160356204A1 CARBURETOR FOR TWO-STROKE INTERNAL COMBUSTION ENGINE 有权
标题翻译：用于两冲程内燃机的CARBURETOR
公开(公告)号：US20160356204A1
公开(公告)日：2016-12-08
申请号：US14728672
申请日：2015-06-02
申请人： ZAMA JAPAN KABUSHIKI KAISHA
发明人： Mineyuki Tamura
IPC分类号： F02B25/22 , F02B75/02 , F02B25/02 , F02M9/08 , F02B17/00
CPC分类号： F02B25/22 , F02B17/00 , F02B25/02 , F02M7/24 , F02M9/08 , F02M23/00 , Y02T10/146
摘要： A carburetor for a two-stroke internal combustion engine whereby airtightness is maintained and intake of uncombusted fuel into an air path is prevented. The carburetor includes a circular cylindrical valve hole and a rotary valve fitted into the valve hole such that it can rotate and is disposed perpendicularly across a fuel intake path and an air intake path which are formed substantially parallel with respect to each other, and a fuel supply-side bore which controls the flow rate along the fuel intake path and the air supply-side bore which controls the air capacity along the air path pass through part of the cylindrical portion perpendicularly to the axial direction of the rotary valve, and annular recesses formed in part of a circumferential wall of an outer circumference of the rotary valve so as not to correspond to at least the fuel supply-side bore and the air supply-side bore.
摘要翻译：一种用于二冲程内燃机的化油器，由此保持气密性并且防止未燃燃料进入空气通道。化油器包括圆柱形阀孔和安装在阀孔中的旋转阀，使得其可以旋转并且垂直地布置在相对于彼此大致平行的燃料进入路径和进气路径上，并且燃料控制沿着燃料进入路径的流量的供给侧孔和控制沿着空气路径的空气容量的空气供给侧孔通过垂直于旋转阀的轴向的圆筒部的一部分，以及环状凹部形成在旋转阀的外周的圆周壁的一部分中，以至少不对应于燃料供给侧孔和供气侧孔。

74. 发明授权

US09249716B2 Stratified scavenging two-stroke engine 有权
标题翻译：分层扫气二冲程发动机
公开(公告)号：US09249716B2
公开(公告)日：2016-02-02
申请号：US14280962
申请日：2014-05-19
申请人： MAKITA CORPORATION
发明人： Yoshiaki Takayanagi
IPC分类号： F02B25/22 , F02B25/06 , F02B25/16 , F02B75/02
CPC分类号： F02B25/06 , F02B25/16 , F02B25/22 , F02B75/02 , F02B2075/025
摘要： A two-stroke engine is provided with a scavenging passage that extends between a scavenging intake that opens into a crankcase and a scavenging port that opens into a cylinder, and an air passage that is connected to an intermediate position of a scavenging passage for introducing air into the scavenging passage. A first check valve that is disposed within a section of a scavenging passage between a scavenging intake and the intermediate position. A second check valve that is disposed within the air passage. The section of the scavenging passage between the intermediate position and the scavenging intake, the air passage, and a mixture gas passage are arranged in a substantially same direction with respect to a longitudinal axis of the cylinder.
摘要翻译：二冲程发动机设有扫气通道，该通风通道在通向曲轴箱的扫气入口与通向气缸的扫气口之间延伸;以及空气通道，其连接到用于引入空气的扫气通道的中间位置进入清扫通道。第一止回阀，设置在扫气通道的清扫进气口和中间位置之间的一段内。设置在空气通道内的第二止回阀。中间位置与扫气入口，空气通道和混合气体通道之间的扫气通道的截面相对于气缸的纵向轴线大致相同的方向排列。

75. 发明授权

US09228491B2 Two-stroke uniflow turbo-compound internal combustion engine 有权
公开(公告)号：US09228491B2
公开(公告)日：2016-01-05
申请号：US13951876
申请日：2013-07-26
申请人： Jack R. Taylor
发明人： Jack R. Taylor
IPC分类号： F02B31/00 , F02B75/22 , F02B23/10 , F02B25/04 , F02B25/22 , F02B31/04 , F02B37/013 , F02B41/10 , F02B75/24 , F01N5/04 , F01N13/06 , F02B29/04 , F02B75/02
CPC分类号： F02B75/222 , F01N5/04 , F01N13/06 , F02B23/101 , F02B25/04 , F02B25/22 , F02B29/0406 , F02B31/04 , F02B37/013 , F02B41/10 , F02B75/24 , F02B2075/025 , Y02T10/125 , Y02T10/144 , Y02T10/146 , Y02T10/163
摘要： A radial, two-stroke uniflow internal combustion (IC) cylinder and multiple cylinder engine, the cylinder having a cylinder wall and a cylinder head, the cylinder head having an exhaust port, a fuel injector, and a spark means disposed through the cylinder head, a piston reciprocally mounted in the cylinder for movement alternately through compression and power strokes, and an inlet swirl port disposed through the cylinder wall providing fluid communication into the cylinder chamber, and having an annular exhaust air manifold in exhaust gas communication with each exhaust ports, and an exhaust-driven radial in-flow turbine that drives the inlet air compression.

76. 发明授权

US08875677B2 Air cleaner in two-stroke engine 有权
标题翻译：二冲程发动机空气净化器
公开(公告)号：US08875677B2
公开(公告)日：2014-11-04
申请号：US13695498
申请日：2011-04-25
申请人： Kazuyuki Uenoyama , Takahiro Kimura
发明人： Kazuyuki Uenoyama , Takahiro Kimura
IPC分类号： F02B25/00 , F02M35/024 , F02M17/34 , F02M1/02 , F02B75/02 , F02B25/22
CPC分类号： F02M1/02 , F02B25/22 , F02B2075/025 , F02M17/34 , F02M35/024
摘要： An air cleaner in a two-stroke engine having an air supply passage and an air/fuel mixture supply passage includes: a first air passage and a second air passage arranged in parallel, the first air passage being communicated with the air supply passage and the second air passage being communicated with the air/fuel mixture supply passage; and a choke valve opening and closing both of the first air passage and the second air passage of the air cleaner. The choke valve has a pivot axis and a pivotable valve member pivoting about the pivot axis to open and close respective inlet openings of the first air passage and the second air passage. One of the first air passage and the second air passage that is located closer to the pivot axis has an inlet opening flattened along a pivoting edge of the valve member.
摘要翻译：具有供气通道和空气/燃料混合物供给通道的二冲程发动机中的空气净化器包括：平行布置的第一空气通道和第二空气通道，第一空气通道与供气通道连通，第二空气通道与空气/燃料混合物供应通道连通; 以及打开和关闭空气滤清器的第一空气通道和第二空气通道的阻流阀。阻风门具有枢转轴线和枢转阀构件，枢转阀构件围绕枢转轴线枢转以打开和关闭第一空气通道和第二空气通道的相应入口开口。位于更靠近枢转轴线的第一空气通道和第二空气通道中的一个具有沿着阀构件的枢转边缘扁平的入口开口。

77. 发明申请

US20140251293A1 STRATIFIED SCAVENGING TWO-STROKE ENGINE 审中-公开
标题翻译：分体式起动两冲程发动机
公开(公告)号：US20140251293A1
公开(公告)日：2014-09-11
申请号：US14280962
申请日：2014-05-19
申请人： MAKITA CORPORATION
发明人： Yoshiaki TAKAYANAGI
IPC分类号： F02B25/06 , F02B75/02
CPC分类号： F02B25/06 , F02B25/16 , F02B25/22 , F02B75/02 , F02B2075/025
摘要： A two-stroke engine is provided with a scavenging passage that extends between a scavenging intake that opens into a crankcase and a scavenging port that opens into a cylinder, and an air passage that is connected to an intermediate position of a scavenging passage for introducing air into the scavenging passage. A first check valve that is disposed within a section of a scavenging passage between a scavenging intake and the intermediate position. A second check valve that is disposed within the air passage. The section of the scavenging passage between the intermediate position and the scavenging intake, the air passage, and a mixture gas passage are arranged in a substantially same direction with respect to a longitudinal axis of the cylinder.
摘要翻译：二冲程发动机设有扫气通道，该通风通道在通向曲轴箱的扫气入口与通向气缸的扫气口之间延伸;以及空气通道，其连接到用于引入空气的扫气通道的中间位置进入清扫通道。第一止回阀，设置在扫气通道的清扫进气口和中间位置之间的一段内。设置在空气通道内的第二止回阀。中间位置与扫气入口，空气通道和混合气体通道之间的扫气通道的截面相对于气缸的纵向轴线大致相同的方向排列。

78. 发明授权

US08516989B2 Internal combustion engine having an elastic connecting duct 有权
标题翻译：具有弹性连接管的内燃机
公开(公告)号：US08516989B2
公开(公告)日：2013-08-27
申请号：US12552781
申请日：2009-09-02
申请人： Olaf Schmidt , Christoph V. Hiller , Reinhard Friedrich , Michael Joos , Jens Kern , Helmut Schlessmann
发明人： Olaf Schmidt , Christoph V. Hiller , Reinhard Friedrich , Michael Joos , Jens Kern , Helmut Schlessmann
IPC分类号： F02B77/04
CPC分类号： F02B25/22 , F02B33/04 , F02B2075/025 , F02M35/10032 , F02M35/10085 , F02M35/1019 , F02M35/10321 , F02M35/108 , F05C2225/08
摘要： An internal combustion engine of a manually operated implement, having an elastic connecting duct between the engine and an air filter for vibration-decoupled bridging of a vibration gap between engine and the air filter. The elastic connecting duct has a first conduit for fuel/air mixture and a second conduit for largely fuel-free air. The first and second conduits are separate tubes having respective bores that are separated from one another over their entire lengths, the inlet of the engine is operatively connected to the air filter via the first conduit, and an air duct window of the engine is operatively connected to the air filter via the second conduit.
摘要翻译：一种手动工具的内燃机，在发动机和空气过滤器之间具有弹性连接管道，用于发动机和空气过滤器之间的振动间隙的振动解耦桥接。弹性连接管道具有用于燃料/空气混合物的第一管道和用于大部分无燃料空气的第二管道。第一和第二导管是具有彼此在其整个长度上彼此分离的相应孔的独立管，发动机的入口经由第一管道可操作地连接到空气过滤器，并且发动机的风道窗可操作地连接通过第二导管到空气过滤器。

79. 发明申请

US20130098325A1 AIR SUPPLY DEVICE FOR 2 STROKE ENGINE 审中-公开
标题翻译：用于2冲程发动机的空气供应装置
公开(公告)号：US20130098325A1
公开(公告)日：2013-04-25
申请号：US13805797
申请日：2010-10-13
申请人： Yoshinori Fukushima , Hiroyuki Noda
发明人： Yoshinori Fukushima , Hiroyuki Noda
IPC分类号： F02M35/10
CPC分类号： F02M35/10 , F02B25/22 , F02B2075/025 , F02M17/34 , F02M33/02 , F02M35/0207 , F02M35/048 , F02M35/08 , F02M35/1019 , F02M35/10196 , F02M35/108
摘要： An air supply device (2) used in a two-stroke engine includes: an insulator (14) having an insulator mixture passage (17) that is in communication with an intake port (5A) provided in an engine body (1) of the two-stroke engine, the insulator being attached to the engine body (1); a carburetor (15) having an insulator mixture passage (17) that is in communication with an insulator mixture passage (17), the carburetor (15) being attached to the insulator (14); an air cleaner (16) having a mixture-side opening (25) that is in communication with the carburetor mixture passage (19), the air cleaner (16) being attached to the carburetor (15); an accumulating portion (29) that accumulates a blow-back fuel returned through the mixture-side opening 25, the accumulating portion (29) being provided inside the air cleaner (16); and an auxiliary passage having a base end connected to the accumulating portion (29) and a distal end connected to a portion affected by a pressure fluctuation inside a crankcase chamber provided in the engine body (1).
摘要翻译：用于二冲程发动机的供气装置（2）包括：绝缘体（14），其具有与设置在所述发动机主体（1）中的进气口（5A）连通的绝缘体混合通道（17）二冲程发动机，绝缘体连接到发动机主体（1）上; 具有与绝缘体混合物通道（17）连通的绝缘体混合物通道（17）的化油器（15），化油器（15）附接到绝缘体（14）; 具有与化油器混合通路（19）连通的混合侧开口（25）的空气滤清器（16），所述空气滤清器（16）安装在化油器（15）上; 累积部分（29），其累积通过混合物侧开口25返回的回吹燃料，蓄积部分（29）设置在空气净化器（16）内; 以及辅助通路，其具有连接到所述蓄积部（29）的基端部，以及与设置在所述发动机主体（1）内的曲轴箱室内受压力波动影响的部分连接的远端。

80. 发明申请

US20120240907A1 STRATIFIED SCAVENGING TWO-CYCLE ENGINE AND CARBURETOR 审中-公开
标题翻译：分离式扫气双周期发动机和制冷机
公开(公告)号：US20120240907A1
公开(公告)日：2012-09-27
申请号：US13503110
申请日：2009-10-21
申请人： Takeshi Watanabe , Ryou Ono
发明人： Takeshi Watanabe , Ryou Ono
IPC分类号： F02B43/00 , F02M15/06
CPC分类号： F02B25/22 , F02B2075/025 , F02M9/085 , F02M9/125
摘要： A stratified scavenging two-cycle engine (10) comprising an engine body (11), a carburetor (12) equipped with a pivotable rotary valve (22) for switching between opening and closing of a single intake path, and an insulator (13) having heat insulating performance. The rotary valve (22) of the carburetor (12) is provided with a fuel injecting nozzle opening (26) open downward. The nozzle opening (26) is provided with a guide section (26A) by which fuel from the nozzle opening (26) is guided to a position corresponding to a position upstream in a mixed gas path (27).
摘要翻译：一种包括发动机主体（11）的分层清扫双循环发动机（10），配备有用于在单个进气通道的打开和关闭之间切换的可枢转旋转阀（22）的化油器（12）和绝缘体（13）具有绝热性能。化油器（12）的旋转阀（22）设有向下开口的燃料喷射喷嘴开口（26）。喷嘴开口（26）设置有引导部分（26A），通过该引导部分（26A），来自喷嘴开口（26）的燃料被引导到与混合气体路径（27）上游的位置相对应的位置。

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