公开(公告)号：US06482321B1

公开(公告)日：2002-11-19

申请号：US09713991

申请日：2000-11-10

申请人： Hans Bossler ,  Roland Adam ,  Ralf Tuckermann

发明人： Hans Bossler ,  Roland Adam ,  Ralf Tuckermann

IPC分类号： B01D3502

CPC分类号： F02M37/22 ,  B01D35/0273 ,  F02M2037/228

摘要： A suction head is provided for the end of a fuel hose in a fuel tank of a portable implement. The suction head comprises a cup-shaped housing of polymeric material that is closed off by a cap. Provided on the cap is a connector for the end of the fuel hose. The outer surface of the housing is provided with window-like cutouts that are covered by a filter mesh. In order also with narrow, fragmented tank housings to ensure an immersion of the suction head into the fuel in every operating position, a rod-shaped weight member is disposed in the center of the housing. This weight member extends from the base of the housing to the cap, with a first end of the weight member being held on the base and a second end being held on the cap.

摘要翻译： 在便携式工具的燃料箱中为燃料软管的端部提供吸头。 吸头包括由盖封闭的聚合物材料的杯状壳体。 在盖上设有用于燃料软管末端的连接器。 壳体的外表面设置有被过滤网覆盖的窗状切口。 为了同时具有狭窄的分段的油箱壳体，以确保在每个操作位置将吸头浸入燃料中，杆状的重量构件设置在壳体的中心。 该配重构件从壳体的底部延伸到帽，其中配重构件的第一端保持在基部上，并且第二端保持在帽上。

公开(公告)号：US06679234B2

公开(公告)日：2004-01-20

申请号：US10085729

申请日：2002-02-28

申请人： Georg Maier ,  Ralf Tuckermann ,  Günter Wolf ,  Philipp Neumann ,  Rebekka Helfen ,  Maximilian Eberhardt

发明人： Georg Maier ,  Ralf Tuckermann ,  Günter Wolf ,  Philipp Neumann ,  Rebekka Helfen ,  Maximilian Eberhardt

IPC分类号： F02M1750

CPC分类号： F02M31/04 ,  F02B63/02 ,  F02M15/02 ,  Y02T10/126

摘要： A manually guided implement having an internal combustion engine and a carburetor for supplying the engine with a fuel/air mixture is provided. A combustion air stream is drawn in through the carburetor by the engine. A warming medium heated up by the engine can be passed along the outer surfaces of the carburetor separate from the combustion air stream.

摘要翻译： 提供一种具有用于向发动机供应燃料/空气混合物的内燃机和化油器的手动导向工具。 燃烧空气流通过发动机的化油器被吸入。 由发动机加热的升温介质可以沿着与燃烧空气流分开的化油器的外表面通过。

公开(公告)号：US5284111A

公开(公告)日：1994-02-08

申请号：US70784

申请日：1993-06-03

申请人： Werner Geyer ,  Ralf Tuckermann

发明人： Werner Geyer ,  Ralf Tuckermann

IPC分类号： F02B23/10 ,  F02B25/14 ,  F02B25/16 ,  F02B75/02 ,  F02B75/12 ,  F02F1/22 ,  F02M61/14 ,  F02M69/04 ,  F02M69/10 ,  F02B33/00

CPC分类号： F02M69/042 ,  F02B25/14 ,  F02F1/22 ,  F02M69/10 ,  F02B2075/025 ,  F02B2075/125 ,  Y02T10/123

摘要： The invention is directed to a two-stroke internal combustion engine for handheld portable tools such as a motor-driven chain saw with the engine having a piston guided in a cylinder. The base of the piston is rotationally symmetrical and delimits a combustion chamber. An injection valve is mounted in the cylinder wall opposite an exhaust opening for exhaust gases. The injection valve injects fuel toward the piston base at an angle of less than 90.degree.. At least one overflow opening is arranged in the cylinder wall between the exhaust opening and the injection valve. Combustion air flows in through the overflow opening with the downward movement of the piston. The injection jet is directed opposite to the flow direction of the entering combustion air. The injection jet is directed for the most part to the half of the piston base which is disposed away from the exhaust opening and the injection opening is the last opening to be closed by the piston travelling toward top dead center. The duration of injection is continued beyond the closure of the overflow opening and of the exhaust outlet. In this way, an optimal air/fuel mixture is assured even at high rotational speeds.

摘要翻译： 本发明涉及一种用于手持式便携式工具的二冲程内燃机，例如电动链锯，发动机具有在气缸中引导的活塞。 活塞的底部是旋转对称的并限定燃烧室。 喷射阀安装在与废气排气口相对的气缸壁中。 喷射阀以小于90度的角度朝向活塞底座喷射燃料。 在排气口和喷射阀之间的气缸壁中布置有至少一个溢流口。 燃烧空气随着活塞的向下运动而流过溢流口。 喷射射流与进入的燃烧空气的流动方向相反。 注射射流大部分被定向到远离排气口的活塞底座的一半，并且喷射口是活塞向上死点行进的最后一个开口。 喷射持续时间持续超过溢流口和排气口的关闭。 以这种方式，即使在高转速下也能确保最佳的空气/燃料混合物。

公开(公告)号：US06880516B2

公开(公告)日：2005-04-19

申请号：US10759004

申请日：2004-01-20

申请人： Georg Maier ,  Fritz Kiesewetter ,  Andreas Bähner ,  Ralf Tuckermann ,  Axel Klimmek

发明人： Georg Maier ,  Fritz Kiesewetter ,  Andreas Bähner ,  Ralf Tuckermann ,  Axel Klimmek

IPC分类号： F02B63/02 ,  F02M35/06 ,  F02B77/00

CPC分类号： F02M35/06 ,  F02B63/02 ,  Y10S55/28

摘要： An intake system for preparing combustion air (1) is for an internal combustion engine of a portable handheld work apparatus. The intake system includes: a carburetor (2); an air filter (3) which is connected upstream of the carburetor (2); and, a filter case (4) which closes the air filter (3) from the outside. A combustion air channel (5) leads from a take-up opening (6) in a cooling air fan (7) of the engine to an inlet opening (24) in the filter case (4). The filter case (4) includes at least one defined ventilation opening (8) for connecting an inner space (9) of the filter case (4) to the ambient air. The flow cross section of the ventilation opening (8) is so designed that the airflows through the inlet opening (24), the intake opening (18) of the carburetor (2) and the ventilation opening (8) are compensated at the rated rpm of the engine and that a uniform pressure level adjusts in the inner space (9) of the filter case (4).

摘要翻译： 用于制备燃烧空气（1）的进气系统用于便携式手持式工作装置的内燃机。 进气系统包括：化油器（2）; 连接在化油器（2）的上游的空气过滤器（3）; 以及从外部关闭空气过滤器（3）的过滤器壳体（4）。 燃烧空气通道（5）从发动机的冷却空气风扇（7）中的卷取开口（6）引导到过滤器壳体（4）中的入口开口（24）。 过滤器壳体（4）包括用于将过滤器壳体（4）的内部空间（9）与环境空气连接的至少一个限定的通气开口（8）。 通风口（8）的流动横截面被设计成使得通过入口（24），化油器（2）的进气口（18）和通风口（8）的气流以额定转速 并且在过滤器壳体（4）的内部空间（9）中调整均匀的压力水平。

公开(公告)号：US5197418A

公开(公告)日：1993-03-30

申请号：US940995

申请日：1992-09-04

申请人： Michael Wissmann ,  Hans Nickel ,  Ralf Tuckermann ,  Werner Geyer

发明人： Michael Wissmann ,  Hans Nickel ,  Ralf Tuckermann ,  Werner Geyer

IPC分类号： F02B63/02 ,  F02B75/02 ,  F02B75/12 ,  F02M59/10 ,  F02M59/20 ,  F02M59/30 ,  F02M67/02 ,  F02M69/10

CPC分类号： F02M69/10 ,  F02M59/107 ,  F02M59/30 ,  F02B2075/025 ,  F02B2075/125 ,  Y02T10/123

摘要： The invention is directed to a fuel injection pump for a two-stroke engine which is especially for portable handheld tools such as motor-driven chain saws or the like. A pneumatic drive chamber is provided in the pump housing which is partitioned by a membrane into a pulse chamber charged by the crankcase pressure and a return chamber. A membrane plate holds the membrane and charges a pump piston which plunges into a pump cylinder for injecting fuel when a pulse is present in the pulse chamber. The pump piston draws fuel in by suction during a return stroke of the membrane plate into a start position determined by a stop. The stop is configured so as to be displaceable in the direction of the stroke of the piston in dependence upon temperature in order to obtain an adaptation of the injected quantity of fuel to the operating temperature of the engine. In this way, the stroke of the pump piston can be varied and therefore also the quantity of fuel supplied by the pump.

摘要翻译： 本发明涉及用于二冲程发动机的燃料喷射泵，其特别适用于诸如电动链锯等便携式手持工具。 在泵壳体中设置气动驱动室，该壳体由膜分隔成由曲轴箱压力充电的脉冲室和回流室。 膜片保持膜并且当在脉冲室中存在脉冲时将泵活塞充入泵活塞，泵活塞用于喷射燃料。 泵活塞在膜片的返回行程期间通过抽吸将燃料吸入由停止确定的起始位置。 挡块被构造成可以根据温度在活塞的行程方向上移动，以便获得喷射量与发动机的工作温度的适应性。 以这种方式，泵活塞的行程可以变化，因此也可以由泵供给的燃料量。

公开(公告)号：US06779514B2

公开(公告)日：2004-08-24

申请号：US10222406

申请日：2002-08-16

申请人： Helmut Zimmermann ,  Ralf Tuckermann

发明人： Helmut Zimmermann ,  Ralf Tuckermann

IPC分类号： F02M3100

CPC分类号： F02M31/145 ,  F02B63/02 ,  F02G5/00 ,  Y02T10/126 ,  Y02T10/166

摘要： A manually guided implement having an internal combustion engine and a carburetor for supplying a fuel/air mixture to the engine is provided. Disposed between the internal combustion engine and the carburetor is a housing wall in which is arranged a preheating window for guiding to the carburetor a preheating air stream that is heated-up by the internal combustion engine. A pivotably mounted switching element is provided for closing and opening the preheating window.

摘要翻译： 提供一种具有用于向发动机供应燃料/空气混合物的内燃机和化油器的手动导向工具。 在内燃机和化油器之间设置有壳体壁，其中布置有预热窗，用于引导化油器由内燃机加热的预热空气流。 提供了一种可枢转安装的开关元件，用于关闭和打开预热窗。

公开(公告)号：US5197417A

公开(公告)日：1993-03-30

申请号：US923583

申请日：1992-08-03

申请人： Ralf Tuckermann ,  Werner Geyer

发明人： Ralf Tuckermann ,  Werner Geyer

IPC分类号： B27B17/08 ,  F02B63/02 ,  F02B75/02 ,  F02M59/10

CPC分类号： F02B63/02 ,  B27B17/08 ,  F02M59/107 ,  F02B2075/025

摘要： The invention is directed to a fuel injection pump for a two-stroke engine mounted in a work apparatus such as a motor-driven chain saw. The injection pump includes a pneumatic drive chamber which is charged with the crankcase pressure of the two-stroke engine. A membrane mounted in the drive chamber transmits the pulses of the crankcase pressure to a pump piston which moves into a pump chamber against the force of a leaf spring. The leaf spring is configured as a leaf spring packet of individual leaf springs in order to obtain an adaptation of the injected fuel quantity to the position of the throttle flap of the engine.

摘要翻译： 本发明涉及安装在诸如电动链锯的工作装置中的用于二冲程发动机的燃油喷射泵。 注射泵包括充气二冲程发动机的曲轴箱压力的气动驱动室。 安装在驱动室中的膜将曲轴箱压力的脉冲传递到泵活塞，泵活塞克服板簧的力而进入泵室。 板簧被构造为单独的板簧的板簧组件，以便将喷射的燃料量适配到发动机的节流阀的位置。