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公开(公告)号：US4565268A
公开(公告)日：1986-01-21
申请号：US431419
申请日：1982-09-30
申请人： Masaru Yamamoto , Tsuneyoshi Yuasa
发明人： Masaru Yamamoto , Tsuneyoshi Yuasa
CPC分类号： A01D34/6812 , F16D67/02 , A01D2101/00 , Y10T477/743
摘要： A lawn mower including an engine having an output shaft, an air impeller, a plurality of cutter blades, and a driven shaft having the air impeller and the cutter blades connected thereto. The driven shaft is connected to the output shaft of the engine through a centrifugal clutch having a drum, and a brake band is located in a path of air drawn by suction by the air impeller for clamping against the outer periphery of the drum of the centrifugal clutch to interrupt rotation of the driven shaft.
摘要翻译： 一种割草机，包括具有输出轴的发动机，空气叶轮，多个切割刀片以及与空气叶轮和切割刀片连接的从动轴。 从动轴通过具有鼓的离心式离合器连接到发动机的输出轴上，制动带位于通过空气叶轮的抽吸抽吸的空气的路径中，用于夹紧离心的滚筒的外周 离合器来中断从动轴的旋转。
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公开(公告)号：US08881692B2
公开(公告)日：2014-11-11
申请号：US13281177
申请日：2011-10-25
申请人： Tsuneyoshi Yuasa
发明人： Tsuneyoshi Yuasa
CPC分类号： F01P1/02 , F01P2001/026
摘要： A top plate is provided in a top portion of a cylinder block of a combustion engine of a type, provided with a cooling fan, so as to lie perpendicular to a longitudinal axis of an engine cylinder. An intake side gasket interposed between the cylinder block and an intake unit is extended upwardly to contact the top plate to thereby seal a gap between the top plate and the intake side gasket. An exhaust side gasket interposed between the cylinder block and an exhaust unit is extended upwardly to contact the top plate to thereby seal a gap between the top plate and the exhaust side gasket. A cooling passage for passing therethrough a cooling air from the cooling fan is formed by the cylinder block, the top plate, the intake side gasket and the exhaust side gasket.
摘要翻译： 顶板设置在具有冷却风扇的类型的内燃机的气缸体的顶部，以便垂直于发动机气缸的纵向轴线。 插入在气缸体和进气单元之间的进气侧垫圈向上延伸以接触顶板，从而密封顶板和进气侧垫圈之间的间隙。 插入在气缸体和排气单元之间的排气侧垫片向上延伸以接触顶板，从而密封顶板和排气侧垫圈之间的间隙。 用于从冷却风扇通过冷却空气的冷却通道由气缸体，顶板，进气侧垫圈和排气侧垫圈形成。
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公开(公告)号：USD673976S1
公开(公告)日：2013-01-08
申请号：US29395452
申请日：2012-01-24
申请人： Tsuneyoshi Yuasa , Toshiro Inoue
设计人： Tsuneyoshi Yuasa , Toshiro Inoue
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公开(公告)号：US20100192928A1
公开(公告)日：2010-08-05
申请号：US12687777
申请日：2010-01-14
申请人： Tsuneyoshi Yuasa
发明人： Tsuneyoshi Yuasa
CPC分类号： F02B25/14 , F02B25/22 , F02B33/04 , F02M35/1019
摘要： To provide a two-stroke cycle combustion engine of an air scavenging type, in which not only can transit from the idling condition to the rapid accelerating condition take place smoothly, but the combustion engine can be smoothly started, there are provided scavenging passages (30, 31) for introducing an air/fuel mixture (M) and an air (A) into a combustion chamber (1a), a valve unit (51, 50) for adjusting the opening of each of an air passage (23) for supplying the air (A) to the scavenging passage (30) and an air/fuel mixture passage (24) for supplying the air/fuel mixture (M) to the scavenging passage (31), and an auxiliary air introducing passage (70) for introducing an auxiliary air to the air/fuel mixture passage (24) at a location downstream of the valve unit (51, 50) in the air/fuel mixture passage (24).
摘要翻译： 为了提供一种空气清扫型的二冲程循环内燃机，其不仅可以顺利地进行从空转状态转变为快速加速状态，而且能够平稳地启动内燃机，还设有清扫通路（30 ，31），用于将空气/燃料混合物（M）和空气（A）引入燃烧室（1a）中;阀单元（51,50），用于调节用于供应的每个空气通道（23）的开口 空气（A）到扫气通道（30）和用于将空气/燃料混合物（M）供应到扫气通道（31）的空气/燃料混合物通道（24）和辅助空气引入通道（70），用于 在空气/燃料混合物通道（24）中的阀单元（51,50）下游的位置处，向空气/燃料混合物通道（24）引入辅助空气。
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公开(公告)号：US07201144B2
公开(公告)日：2007-04-10
申请号：US11396563
申请日：2006-04-04
申请人： Tsuneyoshi Yuasa
发明人： Tsuneyoshi Yuasa
CPC分类号： F02D11/02
摘要： An operating apparatus of an engine in a portable working machine improves an operability of a throttle lever while preventing a Run-on phenomenon or the like. The operating apparatus is provided with a first operating device for operating a throttle valve of the engine in a range from a fully closed state to a fully opened state, a switch for switching the engine between an operable state and a stoppable state, and a second operating device for operating the switch. The second operating device is structured so as to regulate an operation position of the first operating device at a time of operating the switch such that the engine is brought into the operable state, and to allow the first operating device to fully close the throttle valve at a time of operating the switch such that the engine is brought into the stoppable state.
摘要翻译： 便携式工作机中的发动机的操作装置提高了节流杆的可操作性，同时防止润滑现象等。 操作装置设置有用于在从完全关闭状态到完全打开状态的范围内操作发动机的节气门的第一操作装置，用于在可操作状态和可停止状态之间切换发动机的开关，以及第二操作装置 用于操作开关的操作装置。 第二操作装置被构造成在操作开关时调节第一操作装置的操作位置，使得发动机处于可操作状态，并且允许第一操作装置完全关闭节流阀 操作开关的时间使得发动机处于可停止状态。
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公开(公告)号：US07146942B2
公开(公告)日：2006-12-12
申请号：US11171881
申请日：2005-06-30
IPC分类号： F02B25/00
CPC分类号： F02M35/1019 , F02B25/22 , F02M35/1017
摘要： To provide an improved air scavenging type two-cycle combustion engine equipped with a pressure reducing device in which clogging of a decompressing hole can easily be removed, a two-cycle combustion engine includes a delivery passage (32) for introducing air into a combustion chamber (9) prior to an air-fuel mixture. This delivery passage (32) has a downstream opening (32c) through which the air is introduced into the combustion chamber by way of a scavenging port (40a). A decompressing hole (38) is defined for communicating the combustion chamber (9) to a portion of the delivery passage (32) and is closed by a piston (16) then ascending, at a timing delayed relative to closure of an exhaust port (31).
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公开(公告)号：USD529922S1
公开(公告)日：2006-10-10
申请号：US29242401
申请日：2005-11-09
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公开(公告)号：US07089891B2
公开(公告)日：2006-08-15
申请号：US10862667
申请日：2004-06-07
IPC分类号： F02B33/04
摘要： To provide a two-cycle combustion engine, in which the blow-off of the air-fuel mixture used as the scavenging gas is avoided and the combustion efficiency of the air-fuel mixture can be increased, the two-cycle combustion engine includes first and second scavenge passages (11, 12) for supplying the air-fuel mixture (M) from a crank chamber (2a) into the combustion chamber (1a) of the combustion engine. Each of the first and second scavenge passages (11, 12) has a lower end portion thereof extended to assume the position where it confronts an outer end face of a bearing (81) for the crankshaft (8), so that the air-fuel mixture (M) within the crank chamber (2a) can be introduced into the first and second scavenge passages (11, 12) through the bearing (81) and be then supplied into the combustion chamber (1a) through the first and second scavenge passages (11, 12).
摘要翻译： 为了提供避免用作清扫气体的空气 - 燃料混合物的吹扫的双循环内燃机，并且可以提高空气 - 燃料混合物的燃烧效率，所以双循环内燃机包括第一 以及用于将空气燃料混合物（M）从曲柄室（2a）供应到内燃机的燃烧室（1a）中的第二扫气通道（11,12）。 第一和第二清扫通道（11,12）中的每一个具有下端部，其延伸以呈现其与用于曲轴（8）的轴承（81）的外端面相对的位置，使得空气燃料 曲柄室（2a）内的混合物（M）可以通过轴承（81）被引入到第一和第二扫气通道（11,12）中，然后通过第一和第二 扫气通道（11,12）。
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公开(公告)号：US07077078B2
公开(公告)日：2006-07-18
申请号：US10941880
申请日：2004-09-16
IPC分类号： F01P1/02
CPC分类号： F02B63/02 , F01P1/02 , F01P5/06 , F01P2060/16 , F02B75/16
摘要： In an engine cooling structure, an engine cover defines together with a cylinder a space connected through a cooling air inlet to a cooling air supply device. An exhaust muffler has an exhaust gas discharge opening formed near a back end part of a side, which is opposite to a side facing the cylinder, of the exhaust muffler. The opening is positioned at a height included in a vertical dimension of the cylinder. A cooling air passage, through which a cooling air taken in the space defined by the engine cover and the cylinder through the cooling air inlet flows, is formed so as to cool the cylinder and the exhaust muffler. The cooling air passage includes a main cooling passage for guiding part of cooling air used for cooling the cylinder through a space around the exhaust muffler to a space around the opening, and a cooling air bypass passage for guiding part of cooling air used for cooling the cylinder directly to the space around the opening.
摘要翻译： 在发动机冷却结构中，发动机盖与气缸一起限定通过冷却空气入口连接到冷却空气供应装置的空间。 排气消声器具有在排气消声器的与面向气缸的一侧相反侧的后端部附近形成的排气排出口。 开口位于包括在气缸的垂直尺寸中的高度处。 冷却空气通道形成为冷却气缸和排气消声器，通过该冷却空气通道被吸入由发动机盖和气缸限定的空间中的冷却空气通过冷却空气入口流动。 冷却空气通道包括主冷却通道，用于将用于冷却气缸的冷却空气的一部分引导通过排气消声器周围的空间到开口周围的空间，以及冷却空气旁通通道，用于引导冷却用的冷却空气的一部分 缸直接连接到开口周围的空间。
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公开(公告)号：US20050155563A1
公开(公告)日：2005-07-21
申请号：US11033660
申请日：2005-01-11
摘要： To provide a two-cycle combustion engine of a simplified structure with the number of component parts reduced, which is effective to suppress a blow-off of the air/fuel mixture and is excellent in acceleration, the two-cycle combustion engine includes scavenging passages (13, 14) communicating between a combustion chamber (1a) and a crank chamber (2a), an air/furl mixture passage (11) for introducing an air/fuel mixture (EM) from a fuel supply device (3) to the crank chamber (2a), and a branch passage (10A) ramified off from the air/fuel mixture passage (11) for supplying a lean air/fuel mixture (TM) into the scavenging passages (14). During an intake stroke, the lean air/fuel mixture (TM) from the branch passage (10A) is introduced into the scavenging passages (14) and the air/fuel mixture (EM) is introduced from the air/fuel mixture passage (11) into the crank chamber (2a). During a scavenging stroke, the lean air/fuel mixture (TM) is supplied from the scavenging passages (14) into the combustion chamber (2a) prior to introduction of the air/fuel mixture (EM).
摘要翻译： 为了提供一种简化结构的双循环内燃机，减少了部件数量，有效地抑制空气/燃料混合物的吹出，并且加速性优异，两循环内燃机包括清扫通道 （1a）和燃烧室（1a）之间连通的空气/混合物通道（11），用于从燃料供给装置（3）引入空气/燃料混合物（EM） 以及从空气/燃料混合物通道（11）分支的用于将稀空气/燃料混合物（TM）供应到扫气通道（14）中的分支通道（10A）。 在进气行程中，来自分支通道（10A）的稀空气/燃料混合物（TM）被引入扫气通道（14），空气/燃料混合物（EM）从空气/燃料混合物通道 11）进入曲柄室（2a）。 在清扫行程期间，在引入空气/燃料混合物（EM）之前，稀空气/燃料混合物（TM）从扫气通道（14）供应到燃烧室（2a）中。
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