公开(公告)号：US07455283B2

公开(公告)日：2008-11-25

申请号：US11308720

申请日：2006-04-26

Applicant: Andre Prager

Inventor： Andre Prager

IPC: F02M17/04

CPC classification number: F02M17/04 ,  F02M7/12 ,  F02M17/42 ,  Y10S261/68

Abstract: A diaphragm carburetor for an internal combustion engine of a hand-guided power tool has a carburetor housing having an intake passage section and at least one fuel opening that opens into the intake passage section. A control chamber is arranged in the carburetor housing and supplies fuel to the at least one fuel opening. A control diaphragm delimits the control chamber. A valve controls fuel supply to the control chamber, wherein a position of the valve depends on a deflection of the control diaphragm. A device that counteracts a hydrostatic pressure difference between the at least one fuel opening and the control chamber in at least one position of the diaphragm carburetor is provided.

Abstract translation: 一种用于手动引导电动工具的内燃机的隔膜式化油器具有化油器壳体，其具有进气通道部分和至少一个通向进气通道部分的燃料开口。 控制室设置在化油器壳体中并将燃料供应到至少一个燃料开口。 控制隔膜限定控制室。 阀控制到控制室的燃料供应，其中阀的位置取决于控制膜片的偏转。 提供了一种在隔膜式化油器的至少一个位置抵消至少一个燃料开口和控制室之间的静压差的装置。

公开(公告)号：US20070182032A1

公开(公告)日：2007-08-09

申请号：US11698140

申请日：2007-01-26

Applicant: Andre Prager

Inventor： Andre Prager

IPC: F02M69/02

CPC classification number: F02M17/04 ,  F02M7/08

Abstract: A membrane carburetor (1) has a control chamber (13) which is connected via at least one fuel opening (9, 10) to an intake channel (3). The control chamber (13) is delimited by a control membrane (14). A fuel line (54) opens into the control chamber (13) via an inlet valve (15). The inlet valve (15) opens in dependence upon the deflection of the control membrane (14). The membrane carburetor (1) has an acceleration pump (30) which is actuated in dependence upon the position of a throttle element held in the intake channel (3). A good acceleration enrichment and a stable running of the internal combustion engine are achieved when the acceleration pump (30) operates hydraulically on at least one actuating member in the control chamber (13).

Abstract translation: 膜化油器（1）具有经由至少一个燃料开口（9,10）连接到进气通道（3）的控制室（13）。 控制室（13）由控制膜（14）限定。 燃料管线（54）经由入口阀（15）进入控制室（13）。 入口阀（15）根据控制膜（14）的偏转而打开。 膜化油器（1）具有加速泵（30），该加速泵根据保持在进气通道（3）中的节流元件的位置被致动。 当加速泵（30）在控制室（13）中的至少一个致动构件上液压地操作时，实现内燃机的良好的加速度富集和稳定的运行。

公开(公告)号：US20070035043A1

公开(公告)日：2007-02-15

申请号：US11308720

申请日：2006-04-26

Applicant: Andre Prager

Inventor： Andre Prager

IPC: F02M17/04

CPC classification number: F02M17/04 ,  F02M7/12 ,  F02M17/42 ,  Y10S261/68

Abstract: A diaphragm carburetor for an internal combustion engine of a hand-guided power tool has a carburetor housing having an intake passage section and at least one fuel opening that opens into the intake passage section. A control chamber is arranged in the carburetor housing and supplies fuel to the at least one fuel opening. A control diaphragm delimits the control chamber. A valve controls fuel supply to the control chamber, wherein a position of the valve depends on a deflection of the control diaphragm. A device that counteracts a hydrostatic pressure difference between the at least one fuel opening and the control chamber in at least one position of the diaphragm carburetor is provided.

Abstract translation: 一种用于手动引导电动工具的内燃机的隔膜式化油器具有化油器壳体，其具有进气通道部分和至少一个通向进气通道部分的燃料开口。 控制室设置在化油器壳体中并将燃料供应到至少一个燃料开口。 控制隔膜限定控制室。 阀控制到控制室的燃料供应，其中阀的位置取决于控制膜片的偏转。 提供了一种在隔膜式化油器的至少一个位置抵消至少一个燃料开口和控制室之间的静压差的装置。

公开(公告)号：US20060163755A1

公开(公告)日：2006-07-27

申请号：US11339558

申请日：2006-01-26

Applicant: Andre Prager

Inventor： Andre Prager

IPC: F02M23/03

CPC classification number: F02M23/03 ,  F02B25/14 ,  F02B25/22 ,  F02B63/02 ,  F02B2075/025 ,  F02D9/1045 ,  Y02T10/146 ,  Y10S261/01

Abstract: A carburetor (18) has a carburetor housing (17) wherein an intake channel (19) is guided having a flow cross section of less than 3 cm2. The carburetor (18) includes a partition wall (11) which partitions the intake channel (19) into a mixture channel (21) and an air channel (8). The partition wall (11) runs in the longitudinal direction of the intake channel (19). The carburetor (18) has a throttle flap (24, 64) pivotally journalled on a throttle shaft (25, 45, 55, 65, 75). A venturi (23) is formed upstream of the throttle shaft (25, 45, 55, 65, 75) in the mixture channel (21). A fuel opening (28) opens into the mixture channel (21) at the venturi (23). A device for dethrottling the mixture channel (21) and/or for dethrottling the air channel (8) is provided in order to compensate or equalize the nonuniform throttling of the air channel (8) and the mixture channel (21) by the throttle flap (24, 64).

Abstract translation: 化油器（18）具有化油器外壳（17），其中导流管（19）具有小于3cm 2的流动横截面。 化油器（18）包括将进气通道（19）分隔成混合通道（21）和空气通道（8）的分隔壁（11）。 分隔壁（11）在进气通道（19）的纵向延伸。 化油器（18）具有枢转地安装在节流轴（25,45,55,65,75）上的节流阀（24,64）。 文丘里管（23）形成在混合通道（21）中的节流轴（25,45,55,65,75）的上游。 燃料开口（28）在文氏管（23）处通入混合通道（21）。 为了补偿或均衡空气通道（8）和混合物通道（21）的不均匀节流，通过节流阀片（10）来补偿或均衡混合物通道（21）和/或用于排除空气通道（8）的装置， （24,64）。

公开(公告)号：US20060138684A1

公开(公告)日：2006-06-29

申请号：US11322082

申请日：2005-12-29

Applicant: Andre Prager ,  Thomas Sonnenkalb

Inventor： Andre Prager ,  Thomas Sonnenkalb

IPC: F02M1/02

CPC classification number: F02M1/043 ,  F02M1/08

Abstract: A carburetor arrangement for a manually-guided implement operated by an internal combustion engine. A carburetor supplies a fuel/air mixture to the engine, with a butterfly valve being disposed in the intake duct of the carburetor and with a choke valve being disposed upstream of the butterfly valve. A start lever is provided for actuating the carburetor in a start phase, and acts upon the choke valve. The start lever can be shifted in a direction of actuation and in an unlocking direction that is independent of the direction of actuation. The start lever can be locked in a rest position relative to the direction of actuation, and after being shifted out of the rest position in the unlocking direction is shiftable in the direction of actuation.

Abstract translation: 一种用于由内燃机操作的手动导向工具的化油器装置。 化油器向发动机供应燃料/空气混合物，其中蝶阀设置在化油器的进气管道中，并且阻气阀设置在蝶阀的上游。 提供起动杆，用于在起动阶段致动化油器，并作用在阻风阀上。 启动杆可以在致动方向和与致动方向无关的解锁方向上移动。 启动杆可以相对于致动方向被锁定在静止位置，并且在解锁方向上移出静止位置之后，可以沿致动方向移动。

公开(公告)号：US20050188952A1

公开(公告)日：2005-09-01

申请号：US11058257

申请日：2005-02-16

Applicant: Andre Prager

Inventor： Andre Prager

IPC: F02B25/16 ,  F02B25/22 ,  F02B75/02 ,  F02D9/10 ,  F02M9/08 ,  F02M35/10 ,  F02M35/108 ,  F02D9/08

CPC classification number: F02M35/10196 ,  F02B25/22 ,  F02B2075/025 ,  F02D9/1045 ,  F02M9/08 ,  F02M35/10255 ,  F02M35/10262 ,  F02M35/108 ,  Y02T10/146

Abstract: An intake arrangement (1) for a two-stroke engine includes an intake channel (2) in which a throttle flap (3) is pivotally journalled with a throttle shaft (4). Downstream of the throttle flap (3), a partition wall (8) is mounted on the intake channel (2) and this partition wall partitions the intake channel (2) into an air channel (6) and a mixture channel (7). In the idle position (5) of the throttle flap (3), at least one fuel opening (14) opens into the mixture channel (7) downstream of the throttle flap (3). A connecting opening (16) between the air channel (6) and the mixture channel (7) is provided between the partition wall (8) and the throttle shaft (4) in the idle position (5) of the throttle flap (3). A shield (20, 30) is mounted in the mixture channel (7) between the fuel opening (14) and the connecting opening (16) in order to achieve a good swing performance of the two-stroke engine. The shield reduces the passing of fuel into the air channel and therefore the degree of wetting of the air channel with fuel.

Abstract translation: 用于二冲程发动机的进气装置（1）包括进气通道（2），其中节流阀（3）以节流轴（4）枢轴旋转。 在节流阀（3）的下游，分隔壁（8）安装在进气通道（2）上，该分隔壁将进气通道（2）分隔成空气通道（6）和混合通道（7）。 在节流阀（3）的怠速位置（5）中，至少一个燃料开口（14）通向节流阀（3）下游的混合通道（7）。 在空气通道（6）和混合通道（7）之间的连接开口（16）设置在节流阀（3）的怠速位置（5）中的分隔壁（8）和节气门轴（4）之间， 。 为了达到二冲程发动机的良好的摆动性能，在燃料开口（14）和连接口（16）之间的混合通道（7）中安装一个护罩（20,30）。 护罩减少燃料进入空气通道，从而减少空气通道与燃料的润湿程度。

公开(公告)号：US20060107912A1

公开(公告)日：2006-05-25

申请号：US11281412

申请日：2005-11-18

Applicant: Florian Hoche ,  Niels Kunert ,  Horst Denner ,  Andre Prager

Inventor： Florian Hoche ,  Niels Kunert ,  Horst Denner ,  Andre Prager

IPC: F02B33/04

CPC classification number: F02B25/22 ,  F02B25/14 ,  F02B27/005 ,  F02M35/10039 ,  F02M35/10131 ,  F02M35/1019 ,  F02M35/108 ,  Y02T10/146

Abstract: A two-stroke engine includes an air channel for supplying substantially fuel-free combustion air and a mixture channel for supplying an air/fuel mixture. The air channel and the mixture channel connect the cylinder of the two-stroke engine to an air filter. A section of the mixture channel and a section of the air channel are guided in a common component. In order to prevent induction of mixture into the air channel, the length (a) of the mixture channel and the length (b) of the air channel are so matched to each other that the pressure wave in the air channel, which forms during operation, oscillates in phase with the pressure wave formed in the mixture channel. The length (a) of the mixture channel is matched to an optimal fuel induction via the fuel opening. A method for tuning the two-stroke engine provides that the length (a) of the mixture channel is matched to an optimal fuel discharge from the fuel opening in a first step and, in a second step, the length (b) of the air channel is so matched to the length (a) of the mixture channel that the pressure wave in the air channel and the pressure wave in the mixture channel oscillate in phase during operation of the two-stroke engine.

Abstract translation: 二冲程发动机包括用于供应基本上无燃料的燃烧空气的空气通道和用于供应空气/燃料混合物的混合通道。 空气通道和混合通道将二冲程发动机的气缸连接到空气过滤器。 混合通道的一部分和空气通道的一部分在公共部件中被引导。 为了防止混合物引入空气通道，混合通道的长度（a）和空气通道的长度（b）彼此匹配，使得在操作期间形成的空气通道中的压力波 ，与混合通道中形成的压力波同相振荡。 混合通道的长度（a）与通过燃料开口的最佳燃料感应相匹配。 一种用于调节二冲程发动机的方法，在第一步骤中混合通道的长度（a）与来自燃料开口的最佳燃料排放相匹配，而在第二步骤中，空气的长度（b） 通道与混合通道的长度（a）匹配，使得空气通道中的压力波和混合通道中的压力波在二冲程发动机的操作期间相位振荡。