公开(公告)号：US20090283079A1

公开(公告)日：2009-11-19

申请号：US12361662

申请日：2009-01-29

申请人： Hidekazu Tsunoda

发明人： Hidekazu Tsunoda

IPC分类号： F02B25/00 ,  F02M35/02

CPC分类号： F02B25/22 ,  F02B25/14 ,  F02B63/02 ,  F02B2075/025 ,  F02M35/02 ,  F02M35/024 ,  F02M35/1017 ,  F02M35/1019 ,  F02M35/108

摘要： Object It is intended to prevent intrusion of air-fuel mixture into an air cleaner by blow-back in an air-fuel mixture passage of a stratified-scavenging two-stroke engine.Solution The air cleaner (24) includes a guide member (30). A blow-back flow of air (20) flowing back to the air cleaner (24) through a first air opening (23A) due to blow-back of air is induced to a vicinity of a second air opening (23M) by the guide member (30). A blow-back flow of air-fuel mixture (21) occurring in an air-fuel mixture passage (2) prior to the blow-back phenomenon in an air passage (3) collides the air flow 20 moving toward the vicinity of the second air opening (23M), and retains the air-fuel mixture near the second air opening (23M).

摘要翻译： 目的是为了防止空气燃料混合物通过在分层清扫的二冲程发动机的空气 - 燃料混合物通道中的吹回而进入空气净化器。 解决方案空气滤清器（24）包括引导构件（30）。 由于空气吹回而通过第一空气开口（23A）流回空气滤清器（24）的空气（20）的回流通过引导件被引导到第二空气开口（23M）附近 会员（30）。 在空气通道（3）中的回吹现象之前，空气 - 燃料混合物通道（2）中产生的空气 - 燃料混合物（21）的回吹流动使朝向第二个 空气开口（23M），并将空气 - 燃料混合物保持在第二空气开口（23M）附近。

公开(公告)号：US07011078B2

公开(公告)日：2006-03-14

申请号：US10899770

申请日：2004-07-27

申请人： Shiro Yamaguchi ,  Kentaro Matsuo ,  Keita Kamo ,  Hidekazu Tsunoda

发明人： Shiro Yamaguchi ,  Kentaro Matsuo ,  Keita Kamo ,  Hidekazu Tsunoda

IPC分类号： F02B43/00

CPC分类号： F02B75/16 ,  F02B25/14 ,  F02B2075/025 ,  F02F1/22

摘要： A two-stroke internal combustion engine (1) is provided with one pair or plural pairs of C-shaped scavenging passageways (31, 32) of a reverse flow system where scavenging inlet ports (31a) as well as scavenging outlet ports (31b, 32b) are both opened to a cylinder bore (10a), wherein a scavenging introducing passageway (40) for introducing an air-fuel mixture (K) from a crank chamber (18) into the scavenging inlet ports (31a) is provided between the cylinder bore and the piston adapted to reciprocatively move up and down in the cylinder bore (10a), and an effective opening area of the scavenging inlet ports (31a) is gradually decreased due to the piston (20) in the course of descending stroke of the piston (20).

摘要翻译： 二冲程内燃机（1）设置有反向流动系统的一对或多对C形扫气通道（31,32），其中清扫入口（31a）以及清除出口（31） b，32b）都被打开到气缸孔（10a），其中用于将空气 - 燃料混合物（K）从曲柄室（18）引入扫气入口（31a）的扫气引入通道（40） ）设置在气缸孔和活塞之间，适于在气缸孔（10a）中往复运动地上下移动，并且由于活塞（20），扫气入口（31a）的有效开口面积逐渐减小， 在活塞（20）的下降行程中。

公开(公告)号：US20050022757A1

公开(公告)日：2005-02-03

申请号：US10899770

申请日：2004-07-27

申请人： Shiro Yamaguchi ,  Kentaro Matsuo ,  Keita Kamo ,  Hidekazu Tsunoda

发明人： Shiro Yamaguchi ,  Kentaro Matsuo ,  Keita Kamo ,  Hidekazu Tsunoda

IPC分类号： F02F3/00 ,  F02B25/14 ,  F02B25/16 ,  F02B75/02 ,  F02B75/16 ,  F02F1/22 ,  F02F3/24 ,  F02B33/04

CPC分类号： F02B75/16 ,  F02B25/14 ,  F02B2075/025 ,  F02F1/22

摘要： A two-stroke internal combustion engine (1) is provided with one pair or plural pairs of C-shaped scavenging passageways (31, 32) of a reverse flow system where scavenging inlet ports (31a) as well as scavenging outlet ports (31b, 32b) are both opened to a cylinder bore (10a), wherein a scavenging introducing passageway (40) for introducing an air-fuel mixture (K) from a crank chamber (18) into the scavenging inlet ports (31a) is provided between the cylinder bore and the piston adapted to reciprocatively move up and down in the cylinder bore (10a), and an effective opening area of the scavenging inlet ports (31a) is gradually decreased due to the piston (20) in the course of descending stroke of the piston (20).

摘要翻译： 二冲程内燃机（1）设置有反向流动系统的一对或多对C形扫气通道（31,32），其中清扫入口（31a）以及扫气出口（31b， 32b）都打开到气缸孔（10a），其中用于将空气 - 燃料混合物（K）从曲柄室（18）引入扫气入口（31a）的扫气引入通道（40）设置在 气缸孔和适于在气缸孔（10a）中往复运动的活塞，并且由于活塞（20）在下降行程的过程中，扫气入口（31a）的有效开口面积逐渐减小 活塞（20）。

公开(公告)号：US08141536B2

公开(公告)日：2012-03-27

申请号：US12361662

申请日：2009-01-29

申请人： Hidekazu Tsunoda

发明人： Hidekazu Tsunoda

IPC分类号： F02B77/00

CPC分类号： F02B25/22 ,  F02B25/14 ,  F02B63/02 ,  F02B2075/025 ,  F02M35/02 ,  F02M35/024 ,  F02M35/1017 ,  F02M35/1019 ,  F02M35/108

摘要： ObjectIt is intended to prevent intrusion of air-fuel mixture into an air cleaner by blow-back in an air-fuel mixture passage of a stratified-scavenging two-stroke engine.SolutionThe air cleaner (24) includes a guide member (30). A blow-back flow of air (20) flowing back to the air cleaner (24) through a first air opening (23A) due to blow-back of air is induced to a vicinity of a second air opening (23M) by the guide member (30). A blow-back flow of air-fuel mixture (21) occurring in an air-fuel mixture passage (2) prior to the blow-back phenomenon in an air passage (3) collides the air flow 20 moving toward the vicinity of the second air opening (23M), and retains the air-fuel mixture near the second air opening (23M).

摘要翻译： 目的是为了防止空气燃料混合物通过在分层清扫的二冲程发动机的空气 - 燃料混合物通道中的吹回而进入空气净化器。 解决方案空气滤清器（24）包括引导构件（30）。 由于空气吹回而通过第一空气开口（23A）流回空气滤清器（24）的空气（20）的回流通过引导件被引导到第二空气开口（23M）附近 会员（30）。 在空气通道（3）中的回吹现象之前，空气 - 燃料混合物通道（2）中产生的空气 - 燃料混合物（21）的回吹流动使朝向第二个 空气开口（23M），并将空气 - 燃料混合物保持在第二空气开口（23M）附近。

公开(公告)号：US20080120951A1

公开(公告)日：2008-05-29

申请号：US11946464

申请日：2007-11-28

申请人： Shigeru Sato ,  Kunimune Kawamura ,  Hidekazu Tsunoda ,  Kazuhiro Tsutsui

发明人： Shigeru Sato ,  Kunimune Kawamura ,  Hidekazu Tsunoda ,  Kazuhiro Tsutsui

IPC分类号： B01D46/00

CPC分类号： B01D46/0002 ,  B01D2279/60 ,  F02B25/22 ,  F02B27/003 ,  F02B27/005 ,  F02B27/0215 ,  F02B27/0236 ,  F02B33/04 ,  F02B33/44 ,  F02M17/34 ,  F02M19/00 ,  F02M35/02 ,  F02M35/024 ,  F02M35/04 ,  F02M35/1017 ,  F02M35/1019 ,  F02M35/10196 ,  F02M35/108 ,  Y02T10/146 ,  Y10S55/28

摘要： An air cleaner is used in a two-stroke internal combustion engine to supply an air-fuel mixture passage and a fresh air passage in a carburetor with air cleaned by an air cleaner element. The air cleaner includes an air cleaner base having an air-fuel mixture opening communicating with the air-fuel mixture passage and a fresh air opening communicating with the fresh air passage, and an air guide member provided at the air-fuel mixture opening. The air guide member is configured to curve near the air-fuel mixture opening and extend from there along the air cleaner base, and has a cross section surrounded by a peripheral wall. The air guide member defines a mixture-use air extension passage for air to be added to prepare an air-fuel mixture air-fuel mixture, which extends from a first clean air intake to the air-fuel mixture opening. Blown-back gas from the air-fuel mixture passage hits against the inner wall of the curved portion of the air guide member, and is therefore restricted to flow out of the first clean air intake and leak into the air cleaner. Thereby, harmful emissions in the exhaust gas from the two-stroke internal engine can be reduced.

摘要翻译： 在二冲程内燃机中使用空气净化器，以将空气 - 燃料混合物通道和新鲜空气通道提供在化油器中，其中空气被空气净化器元件清洁。 空气滤清器包括具有与空气 - 燃料混合物通道连通的空气燃料混合物开口和与新鲜空气通道连通的新鲜空气开口的空气滤清器基座，以及设置在空气 - 燃料混合物开口处的空气引导构件。 空气引导构件构造成在空气 - 燃料混合物开口附近弯曲并沿着空气滤清器基座从那里延伸，并且具有被周壁包围的横截面。 空气引导构件限定用于添加的空气的混合物用空气延伸通道，以制备从第一清洁空气入口延伸到空气 - 燃料混合物开口的空气 - 燃料混合物空气 - 燃料混合物。 来自空气燃料混合物通道的吹回气体撞击空气引导构件的弯曲部分的内壁，因此被限制为从第一清洁空气入口流出并泄漏到空气净化器中。 由此，能够减少来自二冲程内燃机的废气中的有害排放物。

公开(公告)号：US07857881B2

公开(公告)日：2010-12-28

申请号：US11946464

申请日：2007-11-28

申请人： Shigeru Sato ,  Kunimune Kawamura ,  Hidekazu Tsunoda ,  Kazuhiro Tsutsui

发明人： Shigeru Sato ,  Kunimune Kawamura ,  Hidekazu Tsunoda ,  Kazuhiro Tsutsui

IPC分类号： B01D46/00

CPC分类号： B01D46/0002 ,  B01D2279/60 ,  F02B25/22 ,  F02B27/003 ,  F02B27/005 ,  F02B27/0215 ,  F02B27/0236 ,  F02B33/04 ,  F02B33/44 ,  F02M17/34 ,  F02M19/00 ,  F02M35/02 ,  F02M35/024 ,  F02M35/04 ,  F02M35/1017 ,  F02M35/1019 ,  F02M35/10196 ,  F02M35/108 ,  Y02T10/146 ,  Y10S55/28

摘要： An air cleaner is used in a two-stroke internal combustion engine to supply an air-fuel mixture passage and a fresh air passage in a carburetor with air cleaned by an air cleaner element. The air cleaner includes an air cleaner base having an air-fuel mixture opening communicating with the air-fuel mixture passage and a fresh air opening communicating with the fresh air passage, and an air guide member provided at the air-fuel mixture opening. The air guide member is configured to curve near the air-fuel mixture opening and extend from there along the air cleaner base, and has a cross section surrounded by a peripheral wall. The air guide member defines a mixture-use air extension passage for air to be added to prepare an air-fuel mixture air-fuel mixture, which extends from a first clean air intake to the air-fuel mixture opening. Blown-back gas from the air-fuel mixture passage hits against the inner wall of the curved portion of the air guide member, and is therefore restricted to flow out of the first clean air intake and leak into the air cleaner. Thereby, harmful emissions in the exhaust gas from the two-stroke internal engine can be reduced.

摘要翻译： 在二冲程内燃机中使用空气净化器，以将空气 - 燃料混合物通道和新鲜空气通道提供在化油器中，其中空气被空气净化器元件清洁。 空气滤清器包括具有与空气 - 燃料混合物通道连通的空气 - 燃料混合物开口和与新鲜空气通道连通的新鲜空气开口的空气滤清器基座，以及设置在空气 - 燃料混合物开口处的空气引导构件。 空气引导构件构造成在空气 - 燃料混合物开口附近弯曲并沿着空气滤清器基座从那里延伸，并且具有被周壁包围的横截面。 空气引导构件限定用于添加的空气的混合物用空气延伸通道，以制备从第一清洁空气入口延伸到空气 - 燃料混合物开口的空气 - 燃料混合物空气 - 燃料混合物。 来自空气燃料混合物通道的吹回气体撞击空气引导构件的弯曲部分的内壁，因此被限制为从第一清洁空气入口流出并泄漏到空气净化器中。 由此，能够减少来自二冲程内燃机的废气中的有害排放物。