公开(公告)号：US6086054A

公开(公告)日：2000-07-11

申请号：US80765

申请日：1998-05-18

申请人： Yuzuru Yanaka ,  Mamoru Toda

发明人： Yuzuru Yanaka ,  Mamoru Toda

IPC分类号： F02M17/04 ,  F02M17/06 ,  F02M19/03 ,  F02M19/06

CPC分类号： F02M17/04 ,  F02M19/03 ,  Y10S261/39 ,  Y10S261/68

摘要： The present invention serves to facilitate atomization of fuel in a diaphragm type carburetor for all-purpose two-cycle engines. A check valve used to prevent back flow is installed in the fuel passage leading from a constant-fuel chamber to a main nozzle, and an air bleed passage is connected at a position on the downstream side of the check valve. The main nozzle is constructed by forming nozzle openings which face downstream with respect to the engine intake air flow. The nozzle openings are located in a tubular member which cuts across a central axial line of the venturi so that the tubular member bridges the neck of the venturi.

摘要翻译： 本发明用于促进用于通用双循环发动机的隔膜型化油器中的燃料的雾化。 用于防止回流的止回阀安装在从恒定燃料室引导到主喷嘴的燃料通道中，并且在止回阀的下游侧的位置处连接有排气通道。 主喷嘴通过形成相对于发动机进气流向下游的喷嘴开口而构成。 喷嘴开口位于穿过文丘里管的中心轴线的管状构件中，使得管状构件桥接文丘里管的颈部。

公开(公告)号：US06234457B1

公开(公告)日：2001-05-22

申请号：US09557273

申请日：2000-04-24

申请人： Yuzuru Yanaka ,  Mamoru Toda

发明人： Yuzuru Yanaka ,  Mamoru Toda

IPC分类号： F02M1704

CPC分类号： F02M17/04 ,  F02M19/03 ,  Y10S261/39 ,  Y10S261/68

摘要： Methods of operating a diaphragm type carburetor to facilitate the atomization of fuel in the diaphragm-type carburetor are disclosed. Particularly, methods of operating a diaphragm-type carburetor having a check valve installed in a fuel passage leading from a constant-fuel chamber to a main nozzle, and an air bleed passage connected at a position on the downstream side of the check valve are disclosed. Moreover, techniques for operating a diaphragm-type carburetor having a main nozzle including nozzle openings facing downstream with respect to the engine intake air flow are also disclosed, wherein the nozzle openings are located in a tubular member cutting across a central axial line of the venturi so that the tubular member bridges the neck of the venturi.

摘要翻译： 公开了一种操作隔膜型化油器以便于隔膜式化油器中的燃料雾化的方法。 具体地，公开了一种操作具有安装在从恒定燃料室引导到主喷嘴的燃料通道中的止回阀的隔膜式化油器和连接在止回阀的下游侧的排气通道的方法， 。 此外，还公开了一种用于操作具有主喷嘴的隔膜式化油器的技术，该主喷嘴包括相对于发动机进气流向下游的喷嘴开口，其中喷嘴开口位于穿过文丘里管的中心轴线上的管状构件中 使得管状构件桥接文丘里管的颈部。

公开(公告)号：US20070063357A1

公开(公告)日：2007-03-22

申请号：US11229722

申请日：2005-09-20

申请人： Yoshiharu Iwasa ,  Mamoru Toda

发明人： Yoshiharu Iwasa ,  Mamoru Toda

IPC分类号： F02M7/08

CPC分类号： F02M7/08

摘要： The accelerator apparatus prevents air from remaining within a pump chamber and discharged fuel vapor from causing a pumping effect so as to a destabilize engine operation and increase of an exhaust gas content of harmful material, in an accelerator apparatus in which an accelerated fuel passage draws and discharges fuel to the pump chamber of an accelerator pump, which is connected to a main fuel passage. The pump chamber of the accelerator pump is mechanically coupled with a throttle valve and is connected to a fixed fuel chamber storing a fuel delivered to an intake passage at a fixed pressure by the accelerated fuel passage. Air remaining within the pump chamber and a fuel vapor generated within the pump chamber are discharged to the fixed fuel chamber, and fuel extruded from the pump chamber due to a pumping effect of the remaining air and the fuel vapor enters into the fixed fuel chamber, thereby preventing the alteration of a rate of the fuel flowing through a main fuel passage. Fuel in the pump chamber is fed to the fixed fuel chamber during acceleration so as to increase a pressure in the fixed fuel chamber, and an accelerated fuel is obtained by increasing the amount of the delivered fuel to the intake passage.

摘要翻译： 加速器装置在加速燃料通道抽吸的加速器装置中防止空气残留在泵室内并且排出的燃料蒸汽不引起泵送效应，从而使发动机运转不稳定和有害物质的废气含量增加， 将燃料排放到与主燃料通道连接的加速器泵的泵室。 加速器泵的泵室与节流阀机械联接，并且连接到固定燃料室，该固定燃料室存储通过加速燃料通道以固定压力输送到进气通道的燃料。 在泵室内残留的空气和在泵室内产生的燃料蒸气被排放到固定燃料室，并且由于剩余空气和燃料蒸气的泵送效应而从泵室挤出的燃料进入固定燃料室， 从而防止流过主燃料通道的燃料的速率的变化。 在加速期间，泵室中的燃料被供给到固定燃料室，以便增加固定燃料室中的压力，并且通过增加输送到进气通道的燃料的量来获得加速的燃料。

公开(公告)号：US20060087046A1

公开(公告)日：2006-04-27

申请号：US11258467

申请日：2005-10-24

申请人： Mamoru Toda ,  Satoru Araki

发明人： Mamoru Toda ,  Satoru Araki

IPC分类号： F02M5/08 ,  F24F3/14

CPC分类号： F02D9/106 ,  F02B25/02 ,  F02B25/14 ,  F02D9/1065 ,  F02D2009/0279 ,  F02M1/16 ,  F02M17/04 ,  F02M19/02 ,  F02M23/00 ,  F02M23/03 ,  F02M37/12 ,  Y02T10/146 ,  Y10S261/01

摘要： An interlocking lever having first and second cam faces is mounted on a throttle valve stem, and a throttle valve is arbitrarily opened to perform start-up in a state in which the first cam face makes contact with the choke valve lever and the interlocking lever is stopped during low-temperature start-up with the choke valve closed. After the choke valve has been returned to the fully open position, the throttle valve alone is opened with a small degree of opening to perform low-load operation; and in the mid- and high-load region, the interlocking lever integrally turns with the throttle valve, the second cam face pushes the air valve lever, and the throttle valve and air valve are caused to open and close proportionally. Preferably, the degree of opening of the throttle valve for low load operation is adjustable.

摘要翻译： 具有第一和第二凸轮面的互锁杆安装在节流阀杆上，并且在第一凸轮面与阻流阀杆接触的状态下任意打开节气门以进行启动，并且联动杆为 在低温启动期间，阻塞阀关闭，停止。 在节流阀已经返回到完全打开位置之后，节气门单独打开，开度小，执行低负荷运行; 并且在中高负载区域中，互锁杆与节流阀一体地转动，第二凸轮面推动空气阀杆，使节流阀和空气阀按比例打开和关闭。 优选地，用于低负载操作的节流阀的打开程度是可调节的。

公开(公告)号：US20080212345A1

公开(公告)日：2008-09-04

申请号：US11886062

申请日：2006-03-17

申请人： Tsuyoshi Yamashita ,  Mamoru Toda ,  Kenji Otsuka

发明人： Tsuyoshi Yamashita ,  Mamoru Toda ,  Kenji Otsuka

IPC分类号： H02H7/10

CPC分类号： H02J7/047 ,  H02M1/32 ,  H02M3/33592 ,  Y02B40/90 ,  Y02B70/1475

摘要： A DC-DC converter system is provided to improve switching control operation of a battery charging DC-DC converter (3) in an overheat temperature state without necessitating complication of a control unit (4). The control unit (4) performs output voltage limitation as well as output current limitation when the temperature of the DC-DC converter (3) is in an overheat temperature state in the vicinity of its operation stop temperature. With this capability, the output current and the output voltage can be limited, and therefore overheating of a power switching device (32) of the DC-DC converter (3) can be inhibited. In an alternative embodiment the switching frequency of the power switching device (32) is limited.

摘要翻译： 提供一种DC-DC转换器系统，用于在不需要控制单元（4）的复杂性的情况下改善处于过热温度状态的电池充电DC-DC转换器（3）的开关控制操作。 当DC-DC转换器（3）的温度在其运行停止温度附近处于过热温度状态时，控制单元（4）执行输出电压限制以及输出电流限制。 通过这种能力，可以限制输出电流和输出电压，因此可以抑制DC-DC转换器（3）的电力开关装置（32）的过热。 在替代实施例中，功率开关装置（32）的开关频率受到限制。

公开(公告)号：US07111616B2

公开(公告)日：2006-09-26

申请号：US10992787

申请日：2004-11-22

申请人： Koken Oyamada ,  Mamoru Toda

发明人： Koken Oyamada ,  Mamoru Toda

IPC分类号： F02M37/16

CPC分类号： F02N19/001 ,  F02M17/04 ,  F02M37/16 ,  F02M37/20

摘要： A starting apparatus of a diaphragm-type carburetor, a starting pump disposed at a convenient and accessible location which is separate from a carburetor main body, and air is prevented from being mixed into fuel, in such a structure constructed as a suction-type starting pump. A suction passage extends from a fuel metering chamber and extends beyond an outer portion of the carburetor main body. A starting pump conveniently disposed is separate from the carburetor, and an inlet check valve of the starting pump is disposed in the carburetor main body so as to reduce a volumetric capacity of a section extending to the inlet check valve from the fuel metering chamber, thereby preventing the air from remaining within the suction passage.

摘要翻译： 隔膜式化油器的启动装置，设置在与化油器主体分开的方便可及位置的起动泵和空气被防止混入燃料中，构成为抽吸式起动 泵。 吸入通道从燃料计量室延伸并延伸超过化油器主体的外部。 便利地设置的起动泵与化油器分开，起动泵的入口止回阀设置在化油器主体中，以便减少从燃料计量室延伸到入口止回阀的部分的容积，由此 防止空气残留在吸入通道内。

公开(公告)号：US06354251B1

公开(公告)日：2002-03-12

申请号：US09696630

申请日：2000-10-24

申请人： Mamoru Toda

发明人： Mamoru Toda

IPC分类号： F02B3304

CPC分类号： F02B25/14 ,  F02B25/22 ,  F02B33/04 ,  F02B33/30 ,  F02B2075/025

摘要： An air-fuel ratio control system for a stratified scavenging two-cycle engine that facilitates the elimination of acceleration failure in the initial stage of acceleration due to the dilution of the air-fuel mixture when scavenging air is introduced. In a preferred embodiment, the control system includes a driving gear and a driven gear that are connected to a carburetor throttling valve for controlling output and an air valve for controlling the flow rate of the scavenging air, respectively. Improved acceleration is achieved by not increasing the amount of air relative to the increasing amount of air-fuel mixture initially being introduced by not engaging the gears until the throttling valve opens slightly from the idling position. When the throttling valve is wide open, the two gears engage with each other, thereby opening the air valve and maintaining a nearly constant flow rate ratio between the air-fuel mixture and the air. Alternatively, the control system may include a driving lever and a driven lever that are connected to a carburetor throttling valve and an air valve for controlling the flow rate of the air-fuel mixture and the scavenging air, respectively.

公开(公告)号：US07216856B2

公开(公告)日：2007-05-15

申请号：US11229722

申请日：2005-09-20

申请人： Yoshiharu Iwasa ,  Mamoru Toda

发明人： Yoshiharu Iwasa ,  Mamoru Toda

IPC分类号： F02M7/08

CPC分类号： F02M7/08

摘要： The accelerator apparatus prevents air from remaining within a pump chamber and discharged fuel vapor from causing a pumping effect so as to a destabilize engine operation and increase of an exhaust gas content of harmful material, in an accelerator apparatus in which an accelerated fuel passage draws and discharges fuel to the pump chamber of an accelerator pump, which is connected to a main fuel passage. The pump chamber of the accelerator pump is mechanically coupled with a throttle valve and is connected to a fixed fuel chamber storing a fuel delivered to an intake passage at a fixed pressure by the accelerated fuel passage. Air remaining within the pump chamber and a fuel vapor generated within the pump chamber are discharged to the fixed fuel chamber, and fuel extruded from the pump chamber due to a pumping effect of the remaining air and the fuel vapor enters into the fixed fuel chamber, thereby preventing the alteration of a rate of the fuel flowing through a main fuel passage. Fuel in the pump chamber is fed to the fixed fuel chamber during acceleration so as to increase a pressure in the fixed fuel chamber, and an accelerated fuel is obtained by increasing the amount of the delivered fuel to the intake passage.

摘要翻译： 加速器装置在加速燃料通道抽吸的加速器装置中防止空气残留在泵室内并且排出的燃料蒸汽不引起泵送效应，从而使发动机运转不稳定和有害物质的废气含量增加， 将燃料排放到与主燃料通道连接的加速器泵的泵室。 加速器泵的泵室与节流阀机械联接，并且连接到固定燃料室，该固定燃料室存储通过加速燃料通道以固定压力输送到进气通道的燃料。 在泵室内残留的空气和在泵室内产生的燃料蒸气被排放到固定燃料室，并且由于剩余空气和燃料蒸气的泵送效应而从泵室挤出的燃料进入固定燃料室， 从而防止流过主燃料通道的燃料的速率的变化。 在加速期间，泵室中的燃料被供给到固定燃料室，以便增加固定燃料室中的压力，并且通过增加输送到进气通道的燃料的量来获得加速的燃料。

公开(公告)号：US20050109303A1

公开(公告)日：2005-05-26

申请号：US10992787

申请日：2004-11-22

申请人： Koken Oyamada ,  Mamoru Toda

发明人： Koken Oyamada ,  Mamoru Toda

IPC分类号： F02M17/04 ,  F02M37/16 ,  F02M37/20 ,  F02N99/00 ,  F02N17/00

CPC分类号： F02N19/001 ,  F02M17/04 ,  F02M37/16 ,  F02M37/20

摘要： A starting apparatus of a diaphragm-type carburetor, a starting pump disposed at a convenient and accessible location which is separate from a carburetor main body, and air is prevented from being mixed into fuel, in such a structure constructed as a suction-type starting pump. A suction passage extends from a fuel metering chamber and extends beyond an outer portion of the carburetor main body. A starting pump conveniently disposed is separate from the carburetor, and an inlet check valve of the starting pump is disposed in the carburetor main body so as to reduce a volumetric capacity of a section extending to the inlet check valve from the fuel metering chamber, thereby preventing the air from remaining within the suction passage.

摘要翻译： 隔膜式化油器的启动装置，设置在与化油器主体分开的方便可及位置的起动泵和空气被防止混入燃料中，构成为抽吸式起动 泵。 吸入通道从燃料计量室延伸并延伸超过化油器主体的外部。 便利地设置的起动泵与化油器分开，起动泵的入口止回阀设置在化油器主体中，以便减少从燃料计量室延伸到入口止回阀的部分的容积，由此 防止空气残留在吸入通道内。

公开(公告)号：US07377496B2

公开(公告)日：2008-05-27

申请号：US11258467

申请日：2005-10-24

申请人： Mamoru Toda ,  Satoru Araki

发明人： Mamoru Toda ,  Satoru Araki

IPC分类号： F02M1/02

CPC分类号： F02D9/106 ,  F02B25/02 ,  F02B25/14 ,  F02D9/1065 ,  F02D2009/0279 ,  F02M1/16 ,  F02M17/04 ,  F02M19/02 ,  F02M23/00 ,  F02M23/03 ,  F02M37/12 ,  Y02T10/146 ,  Y10S261/01

摘要： An interlocking lever having first and second cam faces is mounted on a throttle valve stem, and a throttle valve is arbitrarily opened to perform start-up in a state in which the first cam face makes contact with the choke valve lever and the interlocking lever is stopped during low-temperature start-up with the choke valve closed. After the choke valve has been returned to the fully open position, the throttle valve alone is opened with a small degree of opening to perform low-load operation; and in the mid- and high-load region, the interlocking lever integrally turns with the throttle valve, the second cam face pushes the air valve lever, and the throttle valve and air valve are caused to open and close proportionally. Preferably, the degree of opening of the throttle valve for low load operation is adjustable.

摘要翻译： 具有第一和第二凸轮面的互锁杆安装在节流阀杆上，并且在第一凸轮面与阻流阀杆接触的状态下任意打开节气门以进行启动，并且联动杆为 在低温启动期间，阻塞阀关闭，停止。 在节流阀已经返回到完全打开位置之后，节气门单独打开，开度小，执行低负荷运行; 并且在中高负载区域中，互锁杆与节流阀一体地转动，第二凸轮面推动空气阀杆，使节流阀和空气阀按比例打开和关闭。 优选地，用于低负载操作的节流阀的打开程度是可调节的。