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：US09127588B2

公开(公告)日：2015-09-08

申请号：US13316806

申请日：2011-12-12

申请人： Ken Shirai ,  Takahiro Yamazaki ,  Naoki Koga ,  Kazumichi Yamaguchi

发明人： Ken Shirai ,  Takahiro Yamazaki ,  Naoki Koga ,  Kazumichi Yamaguchi

IPC分类号： F02B25/00 ,  F02B25/18 ,  F02F1/22 ,  F02B25/22 ,  F02B63/02 ,  F02B75/02

CPC分类号： F02B25/18 ,  F02B25/22 ,  F02B63/02 ,  F02B2075/025 ,  F02F1/22

摘要： An engine includes a cylinder block, and a piston slidably mounted in a cylinder, with the cylinder block being formed with an exhaust passage leading to a combustion chamber through an exhaust port, a first scavenging port opened to an inner circumferential surface of the cylinder, a first communication passage formed from the first scavenging port in a radial direction of the cylinder, and a first scavenging passage formed with an opening on a bottom surface of the first communication passage, in which a side surface on a far side from the exhaust port forming the communication passage is formed towards the far side from the exhaust port in the combustion chamber, and the opening portion of the first scavenging passage and a landing portion formed in the periphery of the opening portion are formed at a bottom portion of the communication passage.

摘要翻译： 发动机包括气缸体和可滑动地安装在气缸中的活塞，气缸体形成有通过排气口通向燃烧室的排气通道，通向气缸内周面的第一扫气口， 第一连通通道，其从第一扫气口沿圆筒的径向形成;以及第一扫气通道，在第一连通通道的底面上形成有开口，第一连通通路的远离排气口的侧面 形成连通通道形成在与燃烧室中的排气口相距较远的一侧，第一扫气通道的开口部分和形成在开口部分周围的着陆部分形成在连通通道的底部 。

公开(公告)号：US08800508B2

公开(公告)日：2014-08-12

申请号：US13195527

申请日：2011-08-01

申请人： Naoki Koga ,  Takuo Yoshizaki ,  Daisuke Yamada

发明人： Naoki Koga ,  Takuo Yoshizaki ,  Daisuke Yamada

IPC分类号： F02B25/00

CPC分类号： F02B25/14 ,  F02B25/16 ,  F02B33/04 ,  F02B33/44

摘要： A loop scavenged two-stroke internal combustion engine which can effectively restrain blow-by of fresh gas with a relatively simple configuration is provided. A horizontal scavenging angle θb in at least one spot of a scavenging passage 31L located at one side of the pair of or a plurality of pairs of left and right scavenging passages is made to differ from a horizontal scavenging angle θa of a scavenging passage 31R located at the other side, and a main flow of a scavenging flow which is blown out from the scavenging passage 31L located at the one side and a main flow of a scavenging flow which is blown out from the scavenging passage 31R which is located at the other side intersect each other or collide with each other in plane view in a region displaced in a lateral direction from a center line C of an opening of an exhaust port 34.

摘要翻译： 提供了一种循环清扫的二冲程内燃机，其能够以相对简单的结构有效地抑制新鲜气体的窜气。 在位于一对或多对左右扫气通道一侧的清扫通道31L的至少一个点处的水平清扫角度＆amp; b;与水平清扫角度＆at; 位于另一侧的扫气通道31R和从位于一侧的扫气通道31L吹出的扫气流的主流和从扫气通道31R吹出的扫气流的主流， 位于另一侧的空间在从排气口34的开口的中心线C向横向移动的区域中在平面视图中彼此相交或相互碰撞。

公开(公告)号：US20120024276A1

公开(公告)日：2012-02-02

申请号：US13195527

申请日：2011-08-01

申请人： Naoki Koga ,  Takuo Yoshizaki ,  Daisuke Yamada

发明人： Naoki Koga ,  Takuo Yoshizaki ,  Daisuke Yamada

IPC分类号： F02B33/04

CPC分类号： F02B25/14 ,  F02B25/16 ,  F02B33/04 ,  F02B33/44

摘要： A loop scavenged two-stroke internal combustion engine which can effectively restrain blow-by of fresh gas with a relatively simple configuration is provided. A horizontal scavenging angle θb in at least one spot of a scavenging passage 31L located at one side of the pair of or a plurality of pairs of left and right scavenging passages is made to differ from a horizontal scavenging angle θa of a scavenging passage 31R located at the other side, and a main flow of a scavenging flow which is blown out from the scavenging passage 31L located at the one side and a main flow of a scavenging flow which is blown out from the scavenging passage 31R which is located at the other side intersect each other or collide with each other in plane view in a region displaced in a lateral direction from a center line C of an opening of an exhaust port 34.

摘要翻译： 提供了一种循环清扫的二冲程内燃机，其能够以相对简单的结构有效地抑制新鲜气体的窜气。 在位于一对或多对左右扫气通道一侧的清扫通道31L的至少一个点处的水平清扫角度＆amp; b;与水平清扫角度＆at; 位于另一侧的扫气通道31R和从位于一侧的扫气通道31L吹出的扫气流的主流和从扫气通道31R吹出的扫气流的主流， 位于另一侧的空间在从排气口34的开口的中心线C向横向移动的区域中在平面视图中彼此相交或相互碰撞。

公开(公告)号：US06631276B1

公开(公告)日：2003-10-07

申请号：US09644552

申请日：2000-08-24

申请人： Takashi Yamaguchi ,  Hideyuki Furukawa ,  Osamu Nakashima ,  Naoki Koga

发明人： Takashi Yamaguchi ,  Hideyuki Furukawa ,  Osamu Nakashima ,  Naoki Koga

IPC分类号： H04B138

CPC分类号： H01Q1/088 ,  H01Q1/241 ,  H01Q1/244

摘要： A base unit accommodates a radio terminal for making radio communications. This base unit has a recess for accommodating part of the radio terminal formed at least in two mutually orthogonal planes of the base unit body. An opening is formed at the inner side of the recess. Inside the base unit, a connector electrically connects and fixes the radio terminal. A rear part of the radio terminal is inserted through the opening. The base unit includes a lid for shielding the entire recess. The base unit body may include an external antenna connected to a cable having a terminal for connecting with an external antenna terminal provided in the radio terminal. This terminal may be disposed at a position corresponding to the external antenna terminal of the radio terminal of the lid. The base unit design is improved, invasion of foreign matter is prevented, and the radio reaching distance and directivity of the base unit are enhanced.

摘要翻译： 基地单元容纳用于进行无线电通信的无线电终端。 该基座单元具有用于容纳形成在基座单元主体的至少两个相互正交的平面中的无线电终端的部分的凹部。 在凹部的内侧形成开口。 在基座单元内，连接器电连接并固定无线电终端。 无线电终端的后部通过开口插入。 基座单元包括用于屏蔽整个凹部的盖子。 基座单元主体可以包括连接到具有用于与设置在无线终端中的外部天线端子连接的终端的电缆的外部天线。 该终端可以设置在与盖的无线终端的外部天线端子对应的位置。 改进了基本单元设计，防止异物入侵，提高了基站的无线电达到距离和方向性。

公开(公告)号：US06570772B2

公开(公告)日：2003-05-27

申请号：US09860917

申请日：2001-05-18

申请人： Kazumi Kawano ,  Takashi Yamaguchi ,  Naoki Koga

发明人： Kazumi Kawano ,  Takashi Yamaguchi ,  Naoki Koga

IPC分类号： H05K504

CPC分类号： H05K7/1461

摘要： A portable terminal device having: a circuit board having electronic component mounted thereon; a frame for receiving said circuit board therein; a reinforcement member in contact with the frame and for reinforcing the frame; and a cover fitted to the frame. For the device, improvement in the rigidity of the frame can prevent its breakage and resulting kinks or bends of the circuit board, and thus improve reliability of the microconnection between the electronic component and circuit board.

公开(公告)号：US06226319B1

公开(公告)日：2001-05-01

申请号：US09152512

申请日：1998-09-14

申请人： Masatoshi Ohtsuka ,  Naoki Koga

发明人： Masatoshi Ohtsuka ,  Naoki Koga

IPC分类号： H04B1707

CPC分类号： H04B1/707 ,  H04B2201/70707

摘要： A spread spectrum demodulation circuit includes a correlation signal generator which generates a correlation signal from a reception signal to which a quadrature phase shift keying and a spread spectrum modulation are performed. First and second delay elements have different delay times, and delay the correlation signal to obtain first and second delay signals, respectively. First and second adders add the correlation signal and the first and second delay signals to obtain first and second addition signals, respectively. First and second distributors distribute the first and second addition signals, respectively. First and second multiplication circuits obtain first and second multiplication signals from distributed signals inputted from the first and second distributors, respectively. A data demodulation circuit demodulates the first and second multiplication signals to recover a transmission information signal.

摘要翻译： 扩频解调电路包括相关信号发生器，其从执行正交相移键控和扩频调制的接收信号产生相关信号。 第一和第二延迟元件具有不同的延迟时间，并且延迟相关信号以分别获得第一和第二延迟信号。 第一和第二加法器分别添加相关信号和第一和第二延迟信号以获得第一和第二加法信号。 第一和第二分配器分别分配第一和第二加法信号。 第一和第二乘法电路分别从分别从第一和第二分配器输入的分布式信号获得第一和第二乘法信号。 数据解调电路解调第一和第二相乘信号以恢复发送信息信号。

公开(公告)号：US20060092965A1

公开(公告)日：2006-05-04

申请号：US11282493

申请日：2005-01-18

申请人： Tomiya Miyazaki ,  Yutaka Takeda ,  Kazuo Yahiro ,  Takuji Tsujigawa ,  Naoki Koga ,  Keisuke Ogata ,  Akitoshi Aritaka

发明人： Tomiya Miyazaki ,  Yutaka Takeda ,  Kazuo Yahiro ,  Takuji Tsujigawa ,  Naoki Koga ,  Keisuke Ogata ,  Akitoshi Aritaka

IPC分类号： H04L12/413 ,  H04J1/00

CPC分类号： H04B3/54 ,  H04B2203/5416 ,  H04B2203/5445 ,  H04B2203/545 ,  H04M1/723 ,  H04M11/062

摘要： An information terminal incorporates a network interface and an extension interface, and in the case of outside call, an audio send signal is modulated into an audio signal frequency band, and sent to the exchange through a private telephone line and a subscriber's line by way of the network interface. An audio receive signal sent from the exchange through the subscriber's line and private telephone line is demodulated into an ordinary audio frequency band through the network interface. On the other hand, in the case of extension service, an audio send signal is converted into a packetized digital signal by an extension interface circuit, and is further modulated into a higher frequency band so as not to overlap with the audio signal frequency band, and is transmitted through the private telephone line.