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1. 发明申请

US20180080369A1 TWO-STROKE INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：US20180080369A1
公开(公告)日：2018-03-22
申请号：US15562130
申请日：2015-03-31
申请人： HUSQVARNA AB
发明人： Alexander Lundgren , Joel Berneklev , Tommy Shoug
IPC分类号： F02B25/06 , F02B75/02 , F02D9/02
CPC分类号： F02B25/06 , F02B25/22 , F02B75/02 , F02B2075/025 , F02D9/02 , F02D2009/0252 , F02M35/1017 , F02M35/10196 , F02M35/108
摘要： An internal combustion engine (10), including a cylinder (15) with a cylinder wall (12) defining a combustion chamber (32), a piston (13) reciprocally disposed within the combustion chamber (32) a crankcase (16) including a crankshaft (11) rotatably disposed therein, the piston (13) being connected to the crankshaft (11) by a connecting rod (17), a first scavenger duct (3) extending between the combustion chamber (32) and the crankcase (16), the first scavenger duct (3) including a top port (31a) and a bottom port (31b), a fuel and air inlet channel (22) in fluid communication with the crankcase (16) by way of a piston ported fuel and air inlet port (23) so that the fuel and air inlet channel (22) delivers a fuel and air mixture to the crankcase (16), and an airhead channel (6) in fluid communication with the first scavenger duct (3) by way of a first piston ported air inlet port (7), characterized in that the fuel and air inlet channel (22) is in fluid communication with the airhead channel (6) so that the fuel and air mixture is combinable with the air flow from the airhead channel (6).

2. 发明授权

US09903314B2 Carburetor for stratified scavenging two-stroke engine 有权
公开(公告)号：US09903314B2
公开(公告)日：2018-02-27
申请号：US14715623
申请日：2015-05-19
申请人： Yamabiko Corporation
发明人： Shirou Yamaguchi , Takamasa Otsuji
IPC分类号： F02M17/12 , F02M35/10 , F02B17/00 , F02B25/02 , F02B25/16 , F02B25/20 , F02B25/22 , F02M11/02 , F02M19/00 , F02M35/108 , F02B63/02
CPC分类号： F02M17/12 , F02B17/00 , F02B25/02 , F02B25/16 , F02B25/20 , F02B25/22 , F02B63/02 , F02M11/02 , F02M19/00 , F02M35/1019 , F02M35/10196 , F02M35/10255 , F02M35/10262 , F02M35/108 , Y02T10/146
摘要： The present invention is to prevent mixing of fresh air and an air-fuel mixture when a throttle valve is fully opened and increase a delivery ratio. A main nozzle (30) is surrounded by a tunnel-like air flow guiding member (52). The air flow guiding member (52) is opened at its front and back sides. A whole amount of fuel discharged via a main nozzle (30) is sent to a downstream side by an air flow created by the air flow guiding member (52). When a throttle valve (22) and a choke valve (24) are both in a fully-opened state, fresh air flows into an air-fuel mixture passage (12) through a gap between these valves (22, 24).

3. 发明授权

US09464606B2 Handheld work apparatus and elastic connecting piece for a handheld work apparatus 有权
标题翻译：手持式工作装置的手持式工作装置和弹性连接件
公开(公告)号：US09464606B2
公开(公告)日：2016-10-11
申请号：US14444931
申请日：2014-07-28
申请人： Andreas Stihl AG & Co. KG
发明人： Sebastian Friedrich , Jens Knauss , Christian Schmidt , Daniel Diepolder , Christina Escher , Andreas Lingen , Juergen Bernert
IPC分类号： F02B75/02 , F02M35/10 , F16L27/108
CPC分类号： F02M35/10144 , F02M35/10137 , F02M35/1017 , F02M35/1019 , F02M35/10196 , F02M35/10281 , F02M35/10301 , F02M35/10321 , F02M35/10354 , F16L27/108
摘要： A handheld work apparatus has at least one tool which is driven by a combustion engine. A portion of an intake channel of the combustion engine is formed by an elastic connecting piece which has a first section and a second section between which an expansion fold is arranged. The expansion fold has a first side wall and a second side wall arranged downstream of the first side wall. A peripheral wall, which extends in the region of the largest outside diameter (a) of the expansion fold, is arranged in flow direction between the first side wall and the second side wall. The connecting piece has a stop for the expansion fold which prevents a segment of the first side wall adjoining the peripheral wall from bearing against the second side wall.
摘要翻译：手持式工作装置具有至少一个由内燃机驱动的工具。内燃机的进气通道的一部分由弹性连接件形成，弹性连接件具有第一部分和第二部分，在该第二部分之间布置有膨胀折叠部。膨胀折叠部具有布置在第一侧壁下游的第一侧壁和第二侧壁。在膨胀折叠的最大外径（a）的区域中延伸的周壁在第一侧壁和第二侧壁之间沿流动方向布置。连接件具有用于膨胀折叠的止动件，其防止邻接周壁的第一侧壁的部分抵靠第二侧壁承受。

4. 发明申请

US20150337764A1 Carburetor For Stratified Scavenging Two-Stroke Engine 有权
标题翻译：用于分层扫气二冲程发动机的化油器
公开(公告)号：US20150337764A1
公开(公告)日：2015-11-26
申请号：US14715623
申请日：2015-05-19
申请人： Yamabiko Corporation
发明人： Shirou Yamaguchi , Takamasa Otsuji
IPC分类号： F02M17/12 , F02M35/10
CPC分类号： F02M17/12 , F02B17/00 , F02B25/02 , F02B25/16 , F02B25/20 , F02B25/22 , F02B63/02 , F02M11/02 , F02M19/00 , F02M35/1019 , F02M35/10196 , F02M35/10255 , F02M35/10262 , F02M35/108 , Y02T10/146
摘要： The present invention is to prevent mixing of fresh air and an air-fuel mixture when a throttle valve is fully opened and increase a delivery ratio. A main nozzle (30) is surrounded by a tunnel-like air flow guiding member (52). The air flow guiding member (52) is opened at its front and back sides. A whole amount of fuel discharged via a main nozzle (30) is sent to a downstream side by an air flow created by the air flow guiding member (52). When a throttle valve (22) and a choke valve (24) are both in a fully-opened state, fresh air flows into an air-fuel mixture passage (12) through a gap between these valves (22, 24).
摘要翻译：本发明是为了在节流阀完全打开时防止新鲜空气和空气 - 燃料混合物的混合，并增加输送比。主喷嘴（30）被隧道状气流引导构件（52）包围。气流引导构件（52）在其前侧和后侧开口。通过主喷嘴（30）排出的全部燃料通过由气流引导构件（52）产生的空气流被送到下游侧。当节流阀（22）和阻风门（24）都处于完全打开状态时，新鲜空气通过这些阀（22,24）之间的间隙流入空气 - 燃料混合物通道（12）。

5. 发明授权

US09091235B2 Air inlet system for an internal combustion engine 有权
标题翻译：内燃机进气系统
公开(公告)号：US09091235B2
公开(公告)日：2015-07-28
申请号：US13522059
申请日：2010-01-14
申请人： Stefan Stark , Cecilia Åkesson
发明人： Stefan Stark , Cecilia Åkesson
IPC分类号： F02M35/02 , B01D46/00 , F02M35/024 , F02M17/34 , F02M35/10
CPC分类号： F02M35/024 , F02M17/34 , F02M35/10019 , F02M35/1017 , F02M35/1019 , F02M35/10196 , F02M35/10222 , F02M35/10321 , F02M35/10334
摘要： An air inlet system (100) for an internal combustion engine includes an air filter (1) and a flow resistance means (2). The air filter (1) includes one or more filter elements (12), an interior chamber (3) and a suction opening (6). The suction opening (6) is provided to connect the interior chamber (3) to a suction channel (7) of an engine. During operation of the engine, the combustion air flows through the one or more filter elements (12) into the interior chamber (3) and from the interior chamber (3) into the suction channel (7). Further, the interior chamber (3), the suction opening (6) and the suction channel (7) together define a combustion air flow path. The flow resistance means (2) is provided in the combustion air flow path. During the operation of the engine, a portion of the combustion air flows through the flow resistance means (2).
摘要翻译：用于内燃机的进气系统（100）包括空气过滤器（1）和流阻装置（2）。空气过滤器（1）包括一个或多个过滤器元件（12），内部室（3）和吸入开口（6）。吸入口（6）设置成将内部室（3）连接到发动机的吸入通道（7）。在发动机操作期间，燃烧空气流过一个或多个过滤器元件（12）进入内部室（3）并从内部室（3）流入抽吸通道（7）。此外，内部室（3），吸入口（6）和吸入通道（7）共同限定燃烧空气流动路径。流动阻力装置（2）设置在燃烧空气流路中。在发动机操作期间，一部分燃烧空气流过流阻装置（2）。

6. 发明授权

US08651087B2 Engine with an improved arrangement of the carburettor unit 有权
标题翻译：具有改进的化油器单元布置的发动机
公开(公告)号：US08651087B2
公开(公告)日：2014-02-18
申请号：US12899982
申请日：2010-10-07
申请人： Christian Vick , Mark Jesse , Christoph Kahler
发明人： Christian Vick , Mark Jesse , Christoph Kahler
IPC分类号： F02B77/04 , F02B75/06
CPC分类号： F02M35/1017 , F02B63/02 , F02F7/0068 , F02M35/10078 , F02M35/10196 , F02M35/10295
摘要： In order to create an engine more preferably for a small working machine, for example for garden, forest and landscape work or for an engine-operated tool and the like, with a carburettor unit for mixture provision, in which carburettor unit via an inlet pipe is connected with a cylinder of the engine, wherein the cylinder extends along its piston running direction from its crankcase side as far as to its head end, and wherein a holding device is provided which serves for the mechanical holding of at least the carburettor unit and at least comprises an elastic element with an improved arrangement of the carburettor unit and easy removability of the carburettor, i.e. simple assembly and disassembly, it is proposed that the holding device with the at least one elastic element is provided between the carburettor unit and the cylinder and that the holding device is arranged above the inlet pipe in the direction towards the head end of the cylinder in such a manner that a suspended arrangement of the carburettor unit on the cylinder is formed.
摘要翻译：为了更好地为小型工作机器（例如用于园林，森林和景观工作或用于发动机操作的工具等）创建发动机，具有用于混合物供应的化油器单元，其中化油器单元经由入口管与发动机的气缸连接，其中气缸沿其活塞行进方向从其曲轴箱侧延伸到其头端，并且其中设置有用于至少机械保持化油器单元的保持装置，至少包括具有改进的化油器单元布置的弹性元件和化油器的容易的可移除性，即简单的组装和拆卸，提出具有至少一个弹性元件的保持装置设置在化油器单元和气缸之间并且保持装置以朝向气缸的头端的方向布置在入口管上方，使得悬挂的构件形成气瓶上的化油器单元。

7. 发明授权

US08277527B2 Air filter unit 有权
标题翻译：空气过滤器单元
公开(公告)号：US08277527B2
公开(公告)日：2012-10-02
申请号：US12656473
申请日：2010-02-01
申请人： Sven Keller , Harald Bühner , Christoph Maschke , Armin Kölmel , Andreas Weisshaar , Konrad Knaus
发明人： Sven Keller , Harald Bühner , Christoph Maschke , Armin Kölmel , Andreas Weisshaar , Konrad Knaus
IPC分类号： B01D46/00 , F02M17/34
CPC分类号： F02M35/022 , F02B27/00 , F02M33/02 , F02M35/1017 , F02M35/10196 , F02M35/10262 , F02M35/10281 , Y02T10/146
摘要： An air filter unit (1) for a carburetor (2) of a portable handheld work apparatus includes a filter element (3) and at least one clean air channel (10, 11) arranged between the filter element (3) and the carburetor (2). At least one condensation rib (29, 30, 31, 32) is arranged in the clean air channel (10, 11) running in flow direction.
摘要翻译：用于便携式手持式工作装置的化油器（2）的空气过滤器单元（1）包括过滤元件（3）和布置在过滤元件（3）和化油器之间的至少一个清洁空气通道（10,11） 2）。在沿流动方向运行的清洁空气通道（10,11）中布置有至少一个冷凝肋（29,30,31,32）。

8. 发明申请

US20120160212A1 INTAKE DEVICE FOR ENGINE 审中-公开
标题翻译：发动机装置
公开(公告)号：US20120160212A1
公开(公告)日：2012-06-28
申请号：US13386170
申请日：2010-08-25
申请人： Kazuhiro Maki , Chikaya Ito
发明人： Kazuhiro Maki , Chikaya Ito
IPC分类号： F02D9/08
CPC分类号： F02D11/10 , F02D41/0002 , F02D2011/102 , F02D2011/103 , F02D2011/104 , F02M35/02 , F02M35/10144 , F02M35/10196 , F02M35/10268
摘要： It is intended to provide a device for lowering a cost of the throttle body of the carburetor that can be used for both the mechanical governor control device and the electronic governor control device. A bracket 5 on which a stepper motor 7 which opens and closes a throttle valve 6 of a carburetor 2 is provided between adjacent two of an air cleaner 1 arranged in an intake path 12 of the engine, the carburetor 2, a first thermal insulator and the intake path 4 of the engine which together form the intake path 12.
摘要翻译：旨在提供一种用于降低可用于机械调速器控制装置和电子调速器控制装置的化油器的节气门体的成本的装置。其中，在配置在发动机的进气道12中的空气滤清器1的相邻的两个之间设置有用于打开和关闭化油器2的节流阀6的步进马达7的托架5，化油器2，第一绝热体和发动机的进气通路4一起形成进气路径12。

9. 发明申请

US20120152218A1 TWO-STROKE ENGINE 失效
标题翻译：两冲程发动机
公开(公告)号：US20120152218A1
公开(公告)日：2012-06-21
申请号：US13327054
申请日：2011-12-15
申请人： Michael GRETHER , Robert KÖHLI , Stefan KUMMERMEHR
发明人： Michael GRETHER , Robert KÖHLI , Stefan KUMMERMEHR
IPC分类号： F02B33/04 , F02M23/00
CPC分类号： F02B25/22 , F02B25/00 , F02B25/14 , F02M13/04 , F02M29/04 , F02M35/10085 , F02M35/1019 , F02M35/10196 , F02M35/10321 , F02M35/108
摘要： A two-stroke engine, comprising: a crankcase; a cylinder connected to said crankcase; a combustion chamber defined by a reciprocally mounted piston within said cylinder; a crankshaft mounted rotatably in said crankcase and drivingly connected with said piston; at least one overflow passage connecting the crankcase and the combustion chamber when the piston is positioned in the lower dead center region; a connecting stub attached to said cylinder which contains an intake passage that opens into the crankcase and supplies fuel and combustion air, said intake passage including therein an air-fuel mixture passage, wherein said connecting stub contains at least one section of the mixture passage; at least one fuel opening for supplying fuel into said mixture passage; and a guiding rib positioned within said connecting stub and oriented longitudinally in the mixture passage and protruding into the mixture passage.
摘要翻译：一种二冲程发动机，包括：曲轴箱; 连接到所述曲轴箱的气缸; 由所述气缸内的往复安装的活塞限定的燃烧室; 曲轴，可旋转地安装在所述曲轴箱中并与所述活塞驱动连接; 至少一个溢流通道，当活塞位于下死点区域时，连接曲轴箱和燃烧室; 安装在所述气缸上的连接短柱，该连接短柱包含通向所述曲轴箱并供给燃料和燃烧空气的进气通道，所述进气通道包括空气 - 燃料混合物通道，其中所述连接短管包含所述混合通道的至少一个部分; 至少一个用于向所述混合物通道供应燃料的燃料开口; 以及引导肋，其定位在所述连接短管内并在混合通道中纵向定向并突出到混合通道中。

10. 发明申请

US20100192901A1 Air filter unit 有权
标题翻译：空气过滤器单元
公开(公告)号：US20100192901A1
公开(公告)日：2010-08-05
申请号：US12656473
申请日：2010-02-01
申请人： Sven Keller , Harald Bühner , Christoph Maschke , Armin Kölmel , Andreas Weisshaar , Konrad Knaus
发明人： Sven Keller , Harald Bühner , Christoph Maschke , Armin Kölmel , Andreas Weisshaar , Konrad Knaus
IPC分类号： F02M35/02 , B01D45/08
CPC分类号： F02M35/022 , F02B27/00 , F02M33/02 , F02M35/1017 , F02M35/10196 , F02M35/10262 , F02M35/10281 , Y02T10/146
摘要： An air filter unit (1) for a carburetor (2) of a portable handheld work apparatus includes a filter element (3) and at least one clean air channel (10, 11) arranged between the filter element (3) and the carburetor (2). At least one condensation rib (29, 30, 31, 32) is arranged in the clean air channel (10, 11) running in flow direction.
摘要翻译：用于便携式手持式工作装置的化油器（2）的空气过滤器单元（1）包括过滤元件（3）和布置在过滤元件（3）和化油器之间的至少一个清洁空气通道（10,11） 2）。在沿流动方向运行的清洁空气通道（10,11）中布置有至少一个冷凝肋（29,30,31,32）。

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