公开(公告)号：US20110017183A1

公开(公告)日：2011-01-27

申请号：US12842682

申请日：2010-07-23

申请人： Naoki Koga ,  Shirou Yamaguchi ,  Ken Shirai ,  Daisuke Yamada

发明人： Naoki Koga ,  Shirou Yamaguchi ,  Ken Shirai ,  Daisuke Yamada

IPC分类号： F02B25/14

CPC分类号： F02B25/14 ,  F02B33/04 ,  F02B33/44 ,  F02B2075/025

摘要： There is provided a reverse scavenged two-stroke internal combustion engine that is capable of effectively suppressing the short-circuiting of fresh charge (unburnt air-fuel mixture), while at the same time being capable of further improving scavenging efficiency, combustion efficiency, etc. The horizontal sectional shape of at least one pair of scavenging passages (31, 31 and 32, 32) is closer to a triangle than a parallelogram along substantially the entire lengths of the at least one pair of scavenging passages, where a cylinder outer circumferential side of the horizontal sectional shape is narrowest and a cylinder bore wall surface (10a) side of the horizontal sectional shape is wide. Further, horizontal scavenging angles (α, β), which are angles of intersection formed between lines (Ea, Ea and Eb, Eb) extended towards an intake port (33) from guide wall surfaces (31c, 31c and 32c, 32c) that define the scavenging passages (31, 31 and 32, 32), are acute.

摘要翻译： 提供了能够有效地抑制新鲜空气（未燃烧空气 - 燃料混合物）短路的反向扫气二冲程内燃机，同时能够进一步提高清除效率，燃烧效率等。 至少一对扫气通道（31,31,32,32）的水平截面形状比沿着至少一对扫气通道的整个长度的平行四边形更靠近三角形，其中气缸外圆周 水平剖面形状的一侧最窄，水平剖面形状的气缸孔壁面（10a）侧宽。 此外，作为从引导壁面（31c，31c，32c，32c）向进气口（33）延伸的线（Ea，Ea，Eb，Eb）之间的交点角度的水平扫掠角（α，bgr） 定义扫气通道（31,31,32,32）是尖锐的。

公开(公告)号：US08353262B2

公开(公告)日：2013-01-15

申请号：US12842682

申请日：2010-07-23

申请人： Naoki Koga ,  Shirou Yamaguchi ,  Ken Shirai ,  Daisuke Yamada

发明人： Naoki Koga ,  Shirou Yamaguchi ,  Ken Shirai ,  Daisuke Yamada

IPC分类号： F02B23/00 ,  F02B25/14 ,  F02B25/16 ,  F02B75/16

CPC分类号： F02B25/14 ,  F02B33/04 ,  F02B33/44 ,  F02B2075/025

摘要： A reverse scavenged two-stroke internal combustion engine is capable of effectively suppressing the short-circuiting of fresh charge (unburnt air-fuel mixture), while at the same time being capable of further improving scavenging efficiency, combustion efficiency, etc. The horizontal sectional shape of at least one pair of scavenging passages is closer to a triangle than a parallelogram along substantially the entire lengths of the at least one pair of scavenging passages, where a cylinder outer circumferential side of the horizontal sectional shape is narrowest and a cylinder bore wall surface side of the horizontal sectional shape is wide. Further, horizontal scavenging angles, which are angles of intersection formed between lines extended towards an intake port from guide wall surfaces that define the scavenging passages, are acute.

摘要翻译： 反向清扫的二冲程内燃机能够有效地抑制新鲜空气（未燃烧空气 - 燃料混合物）的短路，同时能够进一步提高清除效率，燃烧效率等。 至少一对扫气通道的形状比沿着至少一对扫气通道的整个长度的平行四边形更接近三角形，其中水平截面形状的气缸外圆周侧最窄，气缸孔壁 水平截面形状的表面侧宽。 此外，作为形成于从限定清扫通道的导向壁表面朝向进气口的管线之间形成的交叉角的水平扫掠角度是尖锐的。

公开(公告)号：US20060010860A1

公开(公告)日：2006-01-19

申请号：US11178825

申请日：2005-07-11

申请人： Shirou Yamaguchi ,  Naoki Koga ,  Masaru Nozawa

发明人： Shirou Yamaguchi ,  Naoki Koga ,  Masaru Nozawa

IPC分类号： F01N3/10

CPC分类号： F01N3/2885 ,  F01N13/0097 ,  F01N2230/04

摘要： A catalyst-installed muffler includes an expansion chamber (25), and a gas-permeable exhaust gas-purifying catalyst (30), wherein exhaust gas blown out of the exhaust port (10) of an internal combustion engine is introduced into the expansion chamber (25) through the catalyst (30). The catalyst (30) may be cylindrical in configuration. An outer circumferential cross-sectional configuration of the catalyst (30) is made identical with an inner circumferential cross-sectional configuration of the outer end portion (10a) of the exhaust port (10), so that one end portion (exhaust gas introducing side 30a) of the catalyst (30) is enabled to fit in an outer end portion (10a) of the exhaust port (10). According to this muffler, it is made possible to utilize the purifying capacity of the catalyst to a maximum extent.

摘要翻译： 催化剂安装的消声器包括膨胀室（25）和透气性废气净化催化剂（30），其中从内燃机的排气口（10）吹出的废气被引入膨胀室 （25）通过催化剂（30）。 催化剂（30）可以是圆柱形的。 使催化剂（30）的外周截面形状与排气口（10）的外端部（10a）的内周截面形状相同，使得一端部（排气导入 催化剂（30）的侧面30a）能够装配在排气口（10）的外端部（10a）中。 根据该消音器，能够最大限度地利用催化剂的净化能力。

公开(公告)号：US07243622B2

公开(公告)日：2007-07-17

申请号：US11445972

申请日：2006-06-02

申请人： Kazuhiro Tsutsui ,  Takuo Yoshizaki ,  Shirou Yamaguchi

发明人： Kazuhiro Tsutsui ,  Takuo Yoshizaki ,  Shirou Yamaguchi

IPC分类号： F02B25/22

CPC分类号： F02F1/22 ,  F02B25/14 ,  F02B25/22 ,  F02B33/04 ,  F02D9/16

摘要： A two-stroke internal combustion engine (1) includes one pair or two pairs of scavenging passageways (31, 32) of reverse flow system where scavenging outlet ports (31b, 32b) are opened to the cylinder bore (10a); the internal combustion engine being characterized in that an external air inlet port (42, 44, 46) for introducing external air into a combustion actuating chamber (15) formed over a piston (20) is formed at a portion of the cylinder (10) which is located closer to an exhaust port than a scavenging outlet port (31b, 32b) from which an air-fuel mixture (M) is introduced into the combustion actuating chamber (15) in a descending stroke of piston, and/or the external air inlet port (42, 44, 46) is formed at a portion of the cylinder (10) which enables the external air to be introduced into the combustion actuating chamber (15) prior to introduction of the air-fuel mixture (M).

摘要翻译： 二冲程内燃机（1）包括一对或两对反向流动系统的扫气通道（31,32），其中扫气出口（31b，32b）向气缸孔（10a）开口; 所述内燃机的特征在于，在所述气缸（10）的一部分形成用于将外部空气引入形成在活塞（20）上的燃烧促动室（15）内的外部空气入口（42,44,46） 其位于比排气口更靠近排气口，所述排气口比清除出口（31b，32b）靠近，空气 - 燃料混合物（M）在活塞下降行程中被引入燃烧驱动室（15），和/或 外部空气入口端口（42,44,46）形成在气缸（10）的一部分处，其能够在引入空气 - 燃料混合物（M）之前将外部空气引入燃烧致动室（15） ）。

公开(公告)号：US20060272600A1

公开(公告)日：2006-12-07

申请号：US11445972

申请日：2006-06-02

申请人： Kazuhiro Tsutsui ,  Takuo Yoshizaki ,  Shirou Yamaguchi

发明人： Kazuhiro Tsutsui ,  Takuo Yoshizaki ,  Shirou Yamaguchi

IPC分类号： F02B33/04 ,  F02B25/00 ,  F02F1/22

CPC分类号： F02F1/22 ,  F02B25/14 ,  F02B25/22 ,  F02B33/04 ,  F02D9/16

摘要： A two-stroke internal combustion engine (1) includes one pair or two pairs of scavenging passageways (31, 32) of reverse flow system where scavenging outlet ports (31b, 32b) are opened to the cylinder bore (10a); the internal combustion engine being characterized in that an external air inlet port (42, 44, 46) for introducing external air into a combustion actuating chamber (15) formed over a piston (20) is formed at a portion of the cylinder (10) which is located closer to an exhaust port than a scavenging outlet port (31b, 32b) from which an air-fuel mixture (M) is introduced into the combustion actuating chamber (15) in a descending stroke of piston, and/or the external air inlet port (42, 44, 46) is formed at a portion of the cylinder (10) which enables the external air to be introduced into the combustion actuating chamber (15) prior to introduction of the air-fuel mixture (M).

摘要翻译： 二冲程内燃机（1）包括一对或两对反向流动系统的扫气通道（31,32），其中扫气出口（31b，32b）向气缸孔（10a）开口; 所述内燃机的特征在于，在所述气缸（10）的一部分形成用于将外部空气引入形成在活塞（20）上的燃烧促动室（15）内的外部空气入口（42,44,46） 其位于比排气口更靠近排气口，所述排气口比清除出口（31b，32b）靠近，空气 - 燃料混合物（M）在活塞下降行程中被引入燃烧驱动室（15），和/或 外部空气入口端口（42,44,46）形成在气缸（10）的一部分处，其能够在引入空气 - 燃料混合物（M）之前将外部空气引入燃烧致动室（15） ）。

公开(公告)号：US06600148B2

公开(公告)日：2003-07-29

申请号：US10009753

申请日：2001-10-23

申请人： Shirou Yamaguchi

发明人： Shirou Yamaguchi

IPC分类号： G02F101

CPC分类号： G01M11/336

摘要： According to the present invention, in a simple structure using a fixed analyzer method, in order to measure a smaller PMD value, a predetermined polarization mode dispersion is applied by a reference object to a linearly polarized beam extracted by a first polarizer from a broad band light emitted from a broad band light source. The polarization plane of the light applied with this predetermined polarization mode dispersion is rotated by a polarization plane rotor, and the spectrum of the linearly polarized beam extracted by a second polarizer from the light emitted from the other end side of the measured object is analyzed, thereby to obtain at least one of a maximum value and a minimum value of the polarization mode dispersion. A value based on a difference between the maximum value and the minimum value of the polarization mode dispersion, or a difference between the maximum value and the predetermined polarization mode dispersion value of the reference object, or a difference between the minimum value and the predetermined polarization mode dispersion value of the reference object, is calculated as a value of the polarization mode dispersion of the measured object.

公开(公告)号：US07255072B2

公开(公告)日：2007-08-14

申请号：US11438988

申请日：2006-05-23

申请人： Shirou Yamaguchi

发明人： Shirou Yamaguchi

IPC分类号： F02B25/00 ,  F02B33/04

CPC分类号： F02B25/14 ,  F02B33/04 ,  F02B2075/025 ,  F02B2720/236 ,  F02F3/24

摘要： In a two-stroke internal combustion engine (1) using an internal cooling piston (2), the piston (2) has in-piston scavenging passages (19) defined therein by partition walls (18), and lower-end inlets (20) of the in-piston scavenging passages (19) are opened downward and narrowed in opening area by piston pin bosses (16). In-cylinder scavenging passages (14), which are opened and closed as the piston (2) moves, are supplied with an air-fuel mixture from the narrowed lower-end inlets (20) through the in-piston scavenging passages (19). Thereby, a fresh air-fuel mixture is increased in flow rate when flowing from the in-cylinder scavenging passages (14) to the combustion chamber (10), and the scavenging efficiency of the engine is improved.

摘要翻译： 在使用内部冷却活塞（2）的二冲程内燃机（1）中，活塞（2）具有通过分隔壁（18）和下端入口（20）限定的活塞内的清空通道（19） ）活塞清扫通道（19）向下打开并且通过活塞销凸起（16）在开口面积中变窄。 随着活塞（2）移动而打开和关闭的缸内扫气通道（14）通过活塞清扫通道（19）从狭窄的下端入口（20）供应空气 - 燃料混合物， 。 因此，当从缸内扫气通道（14）流到燃烧室（10）时，新鲜的空气燃料混合物的流量增加，并且发动机的清扫效率提高。

公开(公告)号：US20060266310A1

公开(公告)日：2006-11-30

申请号：US11438988

申请日：2006-05-23

申请人： Shirou Yamaguchi

发明人： Shirou Yamaguchi

IPC分类号： F02B33/04 ,  F02B25/00

CPC分类号： F02B25/14 ,  F02B33/04 ,  F02B2075/025 ,  F02B2720/236 ,  F02F3/24

摘要： In a two-stroke internal combustion engine (1) using an internal cooling piston (2), the piston (2) has in-piston scavenging passages (19) defined therein by partition walls (18), and lower-end inlets (20) of the in-piston scavenging passages (19) are opened downward and narrowed in opening area by piston pin bosses (16). In-cylinder scavenging passages (14), which are opened and closed as the piston (2) moves, are supplied with an air-fuel mixture from the narrowed lower-end inlets (20) through the in-piston scavenging passages (19). Thereby, a fresh air-fuel mixture is increased in flow rate when flowing from the in-cylinder scavenging passages (14) to the combustion chamber (10), and the scavenging efficiency of the engine is improved.

摘要翻译： 在使用内部冷却活塞（2）的二冲程内燃机（1）中，活塞（2）具有通过分隔壁（18）和下端入口（20）限定的活塞内的清空通道（19） ）活塞清扫通道（19）向下打开并且通过活塞销凸起（16）在开口面积中变窄。 随着活塞（2）移动而打开和关闭的缸内扫气通道（14）通过活塞清扫通道（19）从狭窄的下端入口（20）供应空气 - 燃料混合物， 。 因此，当从缸内扫气通道（14）流到燃烧室（10）时，新鲜的空气燃料混合物的流量增加，并且发动机的清扫效率提高。