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1. 发明授权

US10161298B2 Carburetor for two-stroke internal combustion engine 有权
公开(公告)号：US10161298B2
公开(公告)日：2018-12-25
申请号：US15622395
申请日：2017-06-14
申请人： ZAMA JAPAN KABUSHIKI KAISHA
发明人： Mineyuki Tamura
IPC分类号： F02M7/24 , F02M9/00 , F02M9/08 , F02B25/22 , F02B17/00 , F02B25/02 , F02M23/00
摘要： A carburetor for a two-stroke internal combustion engine whereby airtightness is maintained and intake of uncombusted fuel into an air path is prevented. The carburetor includes a circular cylindrical valve hole and a rotary valve fitted into the valve hole such that it can rotate and is disposed perpendicularly across a fuel intake path and an air intake path which are formed substantially parallel with respect to each other, and a fuel supply-side bore which controls the flow rate along the fuel intake path and the air supply-side bore which controls the air capacity along the air path pass through part of the cylindrical portion perpendicularly to the axial direction of the rotary valve, and annular recesses formed in part of a circumferential wall of an outer circumference of the rotary valve so as not to correspond to at least the fuel supply-side bore and the air supply-side bore.

2. 发明申请

US20180128159A1 CARBURETOR FOR TWO-STROKE INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：US20180128159A1
公开(公告)日：2018-05-10
申请号：US15622395
申请日：2017-06-14
申请人： ZAMA JAPAN KABUSHIKI KAISHA
发明人： Mineyuki Tamura
IPC分类号： F02B25/22 , F02M23/00 , F02B25/02 , F02M7/24 , F02M9/08 , F02B17/00
CPC分类号： F02B25/22 , F02B17/00 , F02B25/02 , F02M7/24 , F02M9/08 , F02M23/00 , Y02T10/146
摘要： A carburetor for a two-stroke internal combustion engine whereby airtightness is maintained and intake of uncombusted fuel into an air path is prevented. The carburetor includes a circular cylindrical valve hole and a rotary valve fitted into the valve hole such that it can rotate and is disposed perpendicularly across a fuel intake path and an air intake path which are formed substantially parallel with respect to each other, and a fuel supply-side bore which controls the flow rate along the fuel intake path and the air supply-side bore which controls the air capacity along the air path pass through part of the cylindrical portion perpendicularly to the axial direction of the rotary valve, and annular recesses formed in part of a circumferential wall of an outer circumference of the rotary valve so as not to correspond to at least the fuel supply-side bore and the air supply-side bore.

3. 发明授权

US07882822B2 Method for driving an electromagnetic actuator in a diaphragm carburettor for control of air/fuel ratio 失效
标题翻译：用于驱动隔膜化油器中的电磁致动器的方法，用于控制空气/燃料比
公开(公告)号：US07882822B2
公开(公告)日：2011-02-08
申请号：US11873829
申请日：2007-10-17
申请人： William T. Cobb, Jr. , Massimo Casoni
发明人： William T. Cobb, Jr. , Massimo Casoni
IPC分类号： F02M7/24
CPC分类号： F02D35/0069 , F02D35/0076 , F02N7/10 , F02N19/04
摘要： Method for driving an electromagnetic actuator in a diaphragm carburettor for control of air/fuel ratio foresees at least the following steps: associating an electromagnetic actuator in a diaphragm carburettor for control of air/fuel ratio with the current generation device in an internal combustion engine; driving the aforementioned electromagnetic actuator with pulses suitable for generating the force necessary to actuate the actuator; generating said drive pulses of the actuator in the moments when the current pulses of the aforementioned current generator are such that the maximum current is available during the cycle of the motor.
摘要翻译：用于驱动隔膜化油器中的电磁致动器的方法，用于至少控制空燃比控制以下步骤：将用于控制空燃比的电磁致动器与用于控制内燃机中的电流发生装置的隔膜式化油器相关联; 用适于产生致动致动器所需力的脉冲驱动上述电磁致动器; 在上述电流发生器的电流脉冲使得最大电流在电动机的循环期间可用时，产生致动器的所述驱动脉冲。

4. 发明申请

US20100126466A1 Carburetor 审中-公开
标题翻译：化油器
公开(公告)号：US20100126466A1
公开(公告)日：2010-05-27
申请号：US12591032
申请日：2009-11-05
申请人： Toshio Ikutame
发明人： Toshio Ikutame
IPC分类号： F02M7/24
CPC分类号： F02M3/12 , F02M7/24 , F02M19/08
摘要： To prevent back bleed in a carburetor including a slow fuel passage branched from a main fuel passage, in a carburetor for an engine in which a slow air intake port to introduce air into a slow air bleed passage opens on the side of a suction passage; a slow fuel passage is connected in the middle of a main fuel passage on the upstream side, joins the slow air bleed passage on the downstream side, and has an open end on the side of the suction passage; and the main fuel passage opens in a state where a main nozzle projects in a venturi part of the suction passage, wherein the slow air intake port is opened at a predetermined position of the venturi part having an inner diameter equal to or less than that of the suction passage at a position where the main fuel passage opens.
摘要翻译：为了防止在包括从主燃料通道分支的慢燃料通道的化油器中的回流，在用于将吸入通道的空气引入慢排气通道的缓慢进气口的发动机的化油器中，缓冲燃料通道在上游侧的主燃料通道的中间连接，在下游侧连接缓慢排气通道，并且在吸入通道侧具有开口端; 并且主燃料通道在主喷嘴突出在吸入通道的文丘里部分的状态下打开，其中慢进气口在文丘里管部分的预定位置处打开，文丘里管部分的内径等于或小于在主燃料通道打开的位置处的吸入通道。

5. 发明授权

US07407153B2 Carburettor 有权
标题翻译：化油器
公开(公告)号：US07407153B2
公开(公告)日：2008-08-05
申请号：US10574247
申请日：2004-09-29
申请人： Stephen Brian Glover
发明人： Stephen Brian Glover
IPC分类号： F02M7/24
CPC分类号： F02B25/22 , F02D9/1045 , F02M13/046 , Y10S261/01
摘要： A carburettor for a two stroke engine includes a flow duct including rich and lean flow passages (160, 150) in parallel, through which, in use, air flows in a flow direction and which are separated by substantially planar partition (130). At least one fuel jet (5) communicates with the rich passage (160) and the partition includes an aperture (140) towards which the fuel jet is directed. A substantially planar butterfly valve (120) is received in the aperture so as to be pivotable between a first position, in which the flow duct is substantially closed and the aperture is substantially open, and a second position, in which the flow duct is substantially open and the aperture is substantially closed. The upstream half of the aperture (140) is defined by upstream semi-annular seating ledge (148) affording an upstream seating surface (151), which is engaged by one of the surfaces of the butterfly valve (120), when it is in the second position, and a first end surface (153), which extends between the upstream seating surface and that surface of the partition which is directed towards the lean passage. The downstream half of the aperture (140) is defined by a downstream semi annular seating ledge (149) affording a downstream seating surface (151), which is engaged by the upper surface of the butterfly valve, when it is in the second position, and a second end surface (161), which extends between the downstream seating surface and that surface of the partition which is directed towards the rich passage. At least one of the upstream semi annular seating ledge, the downstream semi-annular seating and the valve are so shaped that, in use, a pressure differential is created between the rich and lean passages at the upstream and/or downstream edges of the valve, the pressure in the lean passage being higher than that in the rich passage.
摘要翻译：用于二冲程发动机的化油器包括流动管道，其包括平行的富有和贫的流动通道（160,150），在使用中，空气在流动方向上流动并且由基本上平面的分隔件（130）分开。至少一个燃料喷嘴（5）与富通道（160）连通，并且分隔件包括孔（140），燃料喷嘴朝向该孔。基本上平面的蝶形阀（120）被容纳在孔中，以便可在第一位置和第二位置之间枢转，第一位置和第二位置之间，流动管道基本上封闭，第一位置基本上封闭，第二位置，打开并且孔径基本上封闭。孔（140）的上游一半由上游半环形座架（148）限定，提供一个上游座面（151），当其处于第二位置和第一端面（153），该第一端面在上游支座表面和指向该通道的分隔件的表面之间延伸。孔140的下游半部由下游的半环形安装凸缘（149）限定，该下部半环形安装凸缘（149）在其处于第二位置时提供下游就座表面（151），该下游座面由蝶形阀的上表面接合，以及第二端表面（161），其在下游就座表面和指向富通道的分隔件的表面之间延伸。上游半环形座椅凸缘中的至少一个，下游半环形座椅和阀门的形状使得在使用中在阀门的上游和/或下游边缘处的富和贫通道之间产生压力差，贫气通道中的压力高于富通道的压力。

6. 发明授权

US07207318B2 Method for operation of a device for energy conversion using a main fuel and at least one auxiliary fuel 有权
标题翻译：用于使用主燃料和至少一种辅助燃料进行能量转换的装置的操作方法
公开(公告)号：US07207318B2
公开(公告)日：2007-04-24
申请号：US10866090
申请日：2004-06-14
申请人： Gerhard Lepperhoff , Helmut Pleimling
发明人： Gerhard Lepperhoff , Helmut Pleimling
IPC分类号： F02M7/24 , F02M51/00 , F16K21/18 , E03B11/00 , F17D1/00 , G05D7/00 , G05D11/00
CPC分类号： F01M1/22 , F02D19/12 , F02D41/0025 , Y10T137/7303 , Y10T137/7306 , Y10T137/7316 , Y10T137/7326 , Y10T137/86187
摘要： A method for operating a converter for the energy conversion of fuel from at least one main fuel supply, and from at least one auxiliary fuel supply for operating the converter directly and/or by operating an auxiliary unit, comprises: detecting the amount of fuel in the main fuel supply; detecting the amount of fuel in the auxiliary fuel supply, at least with respect to a predetermined minimum amount; in response to the minimum amount being reached, generating a signal that blocks at least one of a) filling of the main fuel supply, and b) startup of the converter via a control unit; and deactivating the blocking in response to the auxiliary fuel supply being replenished.
摘要翻译：一种用于操作转换器的方法，用于从至少一个主燃料供应源和至少一个用于直接操作转换器和/或通过操作辅助单元的辅助燃料供应的燃料的能量转换，包括：检测燃料的量主要燃料供应; 至少相对于预定的最小量来检测辅助燃料供应中的燃料量; 响应于达到的最小量，产生阻塞a）填充主燃料供应和b）经由控制单元启动转换器中的至少一个的信号; 并且响应于辅助燃料供应被补充而停用所述阻塞。

7. 发明授权

US5775300A Electronically controlled type floatless carburetor 失效
公开(公告)号：US5775300A
公开(公告)日：1998-07-07
申请号：US761963
申请日：1996-12-10
申请人： Toshio Sugii
发明人： Toshio Sugii
IPC分类号： F02M3/09 , F02M7/133 , F02M7/24 , F02M17/04
CPC分类号： F02M7/24 , F02M17/04 , F02M3/09 , F02M7/133
摘要： An electronically controlled type floatless carburetor includes a fuel regulating chamber from which fuel is delivered to a main fuel passage including a main jet and a pilot fuel passage including a pilot jet as a main diaphragm is actuated. A main solenoid valve is disposed at the intermediate position of the main fuel passage located on the downstream side of the main jet. In addition, a pilot solenoid valve is disposed at the intermediate position of the pilot fuel passage located on the downstream side of the pilot jet. Operation of each of the main solenoid valve and the pilot solenoid valve is controlled by an electronic controlling circuit into which various parameters are inputted so as to assure that main fuel and pilot fuel are ejected in a suction passage from a main nozzle and a slow system ejection port while they are well adapted to all operational states of an engine.

8. 发明授权

US5575268A Air-fuel ratio controlling system for internal combustion engine 失效
标题翻译：内燃机空燃比控制系统
公开(公告)号：US5575268A
公开(公告)日：1996-11-19
申请号：US562193
申请日：1995-11-22
申请人： Kenichi Hirano , Takashi Namari , Shinichi Nemoto
发明人： Kenichi Hirano , Takashi Namari , Shinichi Nemoto
IPC分类号： F02M13/06 , F02D35/00 , F02D41/02 , F02D41/04 , F02D41/14 , F02D45/00 , F02M1/04 , F02M3/09 , F02M7/24 , F02M7/28 , F02D41/00 , F02M23/00 , F02M25/00
CPC分类号： F02D35/0061 , F02M1/046 , F02M3/09 , F02M7/28
摘要： An air-fuel ratio control system for an internal combustion engine including a carburetor having a main fuel system, a slow fuel system, a main bleed air passage leading to the main fuel system a main bleed air control passage leading to the main fuel system, a slow bleed air passage leading to the slow fuel system, and a slow bleed air control passage leading to the slow fuel system, and a valve for controlling the amount of bleed air supplied through the main and slow bleed air control passages. An electronic control unit controls the operation of the valve and is capable of carrying out a feed-back control for controlling the operation of the valve on the basis of a signal from the oxygen sensor so as to bring the air-fuel ratio into a theoretical value, and which determines a control value in such a manner that a feed-back control value is learned and stored to provide a learned value which is substantially constant with respect to fuel of a constant calorific value, and the stored learned value is reflected to a next control value. Thus, it is possible to perform a prompt and stable control of air-fuel ratio in accordance with a variation in calorific value of fuel and to stably and finely vary the amount of bleed air.
摘要翻译：一种用于内燃机的空燃比控制系统，其包括具有主燃料系统，缓慢燃料系统，通向主燃料系统的主排气通道的化油器，通向主燃料系统的主排气控制通道，通向缓慢燃料系统的缓慢放气通道，以及通向缓慢燃料系统的缓慢放气控制通路，以及用于控制通过主放气控制通道和缓慢排气控制通道供给的排气量的阀。电子控制单元控制阀的操作，并且能够基于来自氧传感器的信号执行用于控制阀的操作的反馈控制，以使空燃比成为理论值，并且以这样的方式确定控制值，使得反馈控制值被学习和存储以提供关于恒定热值的燃料基本上恒定的学习值，并且存储的学习值被反映到下一个控制值。因此，可以根据燃料的发热量的变化来执行对空燃比的迅速和稳定的控制，并且稳定且精细地改变排出气体的量。

9. 发明授权

US5542405A Membrane carburetor 失效
标题翻译：膜化油器
公开(公告)号：US5542405A
公开(公告)日：1996-08-06
申请号：US406413
申请日：1995-03-20
申请人： Reinhard Gerhardy
发明人： Reinhard Gerhardy
IPC分类号： F02M7/00 , F02M7/12 , F02M7/24 , F02M17/04 , F02D41/00
CPC分类号： F02M7/24 , F02M17/04
摘要： The invention relates to a membrane carburetor for an engine of a motor-driven chain saw. The membrane carburetor has a fuel-filled control chamber delimited by a control membrane. A throttle flap is mounted in an intake channel and a main nozzle opens into the intake channel upstream of the throttle flap. The main nozzle opening is connected to the control chamber via a fuel channel and a fixed nozzle limiting the inflowing fuel-mass flow. In order to make the mixture composition controllable, an air-supply channel opens into the fuel channel and a control valve is mounted in the air-supply channel. The control valve can be adjusted by a positioning device in dependence upon engine operating data. The positioning device is actuated by a control apparatus.
摘要翻译：本发明涉及一种用于电动链锯发动机的膜式化油器。膜化油器具有由控制膜限定的燃料填充控制室。节气门瓣安装在进气通道中，主喷嘴通向节流阀上游的进气通道。主喷嘴开口通过燃料通道和限制流入燃料质量流量的固定喷嘴连接到控制室。为了使混合物组合物可控，供气通道通向燃料通道，并且控制阀安装在供气通道中。控制阀可以通过定位装置根据发动机运转数据进行调节。定位装置由控制装置致动。

10. 发明授权

US4563990A Fuel supply control system for engine carburetors 失效
标题翻译：发动机化油器燃油供应控制系统
公开(公告)号：US4563990A
公开(公告)日：1986-01-14
申请号：US554883
申请日：1983-11-23
申请人： Eiji Kishida , Hideo Kobayashi , Hidekazu Kano
发明人： Eiji Kishida , Hideo Kobayashi , Hidekazu Kano
IPC分类号： F02M7/04 , F02M7/133 , F02M7/17 , F02M7/24 , F02M7/12
CPC分类号： F02M7/24 , F02M7/133 , F02M7/17
摘要： A fuel supply control system for a vehicle engine carburetor and particularly a carburetor that includes a variable venturi portion and fixed venturi or nozzle portion. The system includes a fuel valve for supplying additional fuel to the nozzle under low speed or high load conditions sensed by elements responsive to those conditions. The system also includes an air valve for controlling the air supplied to the nozzle and a sensor for closing the air valve to thereby also increase the fuel supplied to the nozzle under high load conditions. Other sensors of engine temperature also control the operation of the fuel and air valves.
摘要翻译：一种用于车辆发动机化油器的燃料供应控制系统，特别是包括可变文丘里部分和固定文丘里管或喷嘴部分的化油器。该系统包括用于在由这些条件响应的元件感测的低速或高负载条件下向喷嘴提供附加燃料的燃料阀。该系统还包括用于控制供给喷嘴的空气的空气阀和用于关闭空气阀的传感器，从而也可以在高负载条件下增加供给喷嘴的燃料。发动机温度的其他传感器也可以控制燃油和空气阀的运行。

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