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1. 发明授权

US10227953B2 Starting device and carburetor supplying fixed amount of fuel 有权
公开(公告)号：US10227953B2
公开(公告)日：2019-03-12
申请号：US14887796
申请日：2015-10-20
申请人： ZAMA JAPAN KABUSHIKI KAISHA
发明人： Hideki Watanabe , Tamotsu Saito
IPC分类号： F02M1/16 , F02M17/04 , F02M37/16
摘要： A starting device for feeding a quantity of fuel from the fixed-quantity fuel chamber to an intake passage during start-up having a manually operated primary pump for suctioning/pumping fuel and arranged on a fuel introduction path connected along a fuel-feeding path; and a fixed-quantity fuel chamber for temporarily storing fuel delivered from the primary pump. An internal wall of the fixed-quantity fuel chamber undergoes elastic displacement, allowing its internal capacity to expand/shrink within a predetermined range; the fixed-quantity fuel chamber is connected to a fuel delivery path that communicates with the intake passage side and has a manually operated open/close valve; the valve is opened in a state in which, due to the primary pump being operated, the fixed-quantity fuel chamber is filled with a predetermined quantity of fuel while enlarging its internal capacity, whereby it shrinks due to an elastic contraction force and the fuel.

2. 发明申请

US20180320647A1 FUEL INJECTION DEVICE 审中-公开
公开(公告)号：US20180320647A1
公开(公告)日：2018-11-08
申请号：US15811257
申请日：2017-11-13
申请人： ZAMA JAPAN KABUSHIKI KAISHA
发明人： Takumi Nonaka , Hideki Watanabe
IPC分类号： F02M37/00 , F02M59/14 , F02M57/02 , F02M55/04 , F02M55/02
CPC分类号： F02M37/0052 , F02M37/0023 , F02M55/02 , F02M55/04 , F02M57/02 , F02M57/026 , F02M59/14
摘要： A fuel injection device for smooth discharge of a gas accumulated therein comprising a fuel pump, a solenoid valve for injecting pressurized fuel into the intake passage of an engine, a high-pressure fuel passage extending from the fuel pump to the solenoid valve and has a medially positioned constant-pressure chamber, and a fuel return passage connected to a fuel return pipe, with the fuel return passage extending from the constant-pressure chamber and having a medially positioned priming pump. The constant-pressure chamber is configured with the top wall in the upper space thereof disposed above the opening of the high-pressure fuel passage opposite the solenoid valve, the fuel return passage opens into the upper space at a position above the opening of the high-pressure fuel passage, and the gas accumulating in the constant-pressure chamber is discharged from the upper space toward the fuel tank via the fuel return passage.

3. 发明授权

US09599067B2 Attachment structure for solenoid valve to carburetor unit 有权
公开(公告)号：US09599067B2
公开(公告)日：2017-03-21
申请号：US14728257
申请日：2015-06-02
申请人： ZAMA JAPAN KABUSHIKI KAISHA
发明人： Takumi Nonaka , Hideki Watanabe , Hiroyuki Oka
IPC分类号： F02M7/12 , F02M19/06
CPC分类号： F02M7/18 , F02M7/12 , F02M19/06
摘要： An attachment structure for a solenoid valve which can be stably attached to and removed from a carburetor unit with a single movement and without increasing the number of parts. A rod-like supporting portion is disposed a predetermined distance away from a surface of a carburetor unit and extending in a direction substantially perpendicular to a direction of and installed near an opening in the surface of the carburetor unit. A cylindrical engaging portion extends from a circumferential face of a cylindrical body fitted on the solenoid valve substantially perpendicular to an axial line of the rod-like supporting portion, and forms a groove-like engagement portion which is narrower in diameter than the rod-like supporting portion, whereby the engaging portion, via the groove-like engagement portion, is coupled to and supported by rod-like supporting portion when an insertion portion of the solenoid valve is inserted into the opening.

4. 发明授权

US09394870B2 Fuel injection device 有权
公开(公告)号：US09394870B2
公开(公告)日：2016-07-19
申请号：US14720042
申请日：2015-05-22
申请人： ZAMA JAPAN KABUSHIKI KAISHA
发明人： Takumi Nonaka , Hideki Watanabe
IPC分类号： F02M51/00 , F02M55/02 , F02M57/02 , F02M37/00 , F02M55/04
CPC分类号： F02M37/0052 , F02M37/0023 , F02M55/02 , F02M55/04 , F02M57/02 , F02M57/026 , F02M59/14
摘要： A fuel injection device for smooth discharge of a gas accumulated therein comprising a fuel pump, a solenoid valve for injecting pressurized fuel into the intake passage of an engine, a high-pressure fuel passage extending from the fuel pump to the solenoid valve and has a medially positioned constant-pressure chamber, and a fuel return passage connected to a fuel return pipe, with the fuel return passage extending from the constant-pressure chamber and having a medially positioned priming pump. The constant-pressure chamber is configured with the top wall in the upper space thereof disposed above the opening of the high-pressure fuel passage opposite the solenoid valve, the fuel return passage opens into the upper space at a position above the opening of the high-pressure fuel passage, and the gas accumulating in the constant-pressure chamber is discharged from the upper space toward the fuel tank via the fuel return passage.

5. 发明授权

US09840990B2 Fuel injection device 有权
公开(公告)号：US09840990B2
公开(公告)日：2017-12-12
申请号：US15186327
申请日：2016-06-17
申请人： ZAMA JAPAN KABUSHIKI KAISHA
发明人： Takumi Nonaka , Hideki Watanabe
IPC分类号： F02M37/00 , F02M57/02 , F02M55/02 , F02M55/04 , F02M59/14
CPC分类号： F02M37/0052 , F02M37/0023 , F02M55/02 , F02M55/04 , F02M57/02 , F02M57/026 , F02M59/14
摘要： A fuel injection device for smooth discharge of a gas accumulated therein comprising a fuel pump, a solenoid valve for injecting pressurized fuel into the intake passage of an engine, a high-pressure fuel passage extending from the fuel pump to the solenoid valve and has a medially positioned constant-pressure chamber, and a fuel return passage connected to a fuel return pipe, with the fuel return passage extending from the constant-pressure chamber and having a medially positioned priming pump. The constant-pressure chamber is configured with the top wall in the upper space thereof disposed above the opening of the high-pressure fuel passage opposite the solenoid valve, the fuel return passage opens into the upper space at a position above the opening of the high-pressure fuel passage, and the gas accumulating in the constant-pressure chamber is discharged from the upper space toward the fuel tank via the fuel return passage.

6. 发明申请

US20170022949A1 FUEL INJECTION DEVICE 审中-公开
标题翻译：燃油喷射装置
公开(公告)号：US20170022949A1
公开(公告)日：2017-01-26
申请号：US15186327
申请日：2016-06-17
申请人： ZAMA JAPAN KABUSHIKI KAISHA
发明人： Takumi Nonaka , Hideki Watanabe
IPC分类号： F02M37/00 , F02M59/14
CPC分类号： F02M37/0052 , F02M37/0023 , F02M55/02 , F02M55/04 , F02M57/02 , F02M57/026 , F02M59/14
摘要： A fuel injection device for smooth discharge of a gas accumulated therein comprising a fuel pump, a solenoid valve for injecting pressurized fuel into the intake passage of an engine, a high-pressure fuel passage extending from the fuel pump to the solenoid valve and has a medially positioned constant-pressure chamber, and a fuel return passage connected to a fuel return pipe, with the fuel return passage extending from the constant-pressure chamber and having a medially positioned priming pump. The constant-pressure chamber is configured with the top wall in the upper space thereof disposed above the opening of the high-pressure fuel passage opposite the solenoid valve, the fuel return passage opens into the upper space at a position above the opening of the high-pressure fuel passage, and the gas accumulating in the constant-pressure chamber is discharged from the upper space toward the fuel tank via the fuel return passage.
摘要翻译：一种燃料喷射装置，用于平稳地排放积聚在其中的气体，包括燃料泵，用于将加压燃料喷射到发动机的进气通道中的电磁阀，从燃料泵延伸到电磁阀的高压燃料通道，中间定位的恒压室和连接到燃料返回管的燃料返回通道，燃料返回通道从恒压室延伸并具有中间定位的启动泵。定压室的上部空间中的顶壁设置在与电磁阀相对的高压燃料通道的开口上方，燃料返回通道在高位开口上方的位置上方通向上部空间压力燃料通道，并且积存在恒压室中的气体经由燃料返回通道从上部空间朝向燃料箱排出。

7. 发明授权

US09068541B2 Fuel injection device 有权
标题翻译：燃油喷射装置
公开(公告)号：US09068541B2
公开(公告)日：2015-06-30
申请号：US14303499
申请日：2014-06-12
申请人： ZAMA JAPAN KABUSHIKI KAISHA
发明人： Takumi Nonaka , Hideki Watanabe
IPC分类号： F02M51/00 , F02M55/04 , F02M57/02 , F02M37/00 , F02M55/02
CPC分类号： F02M37/0052 , F02M37/0023 , F02M55/02 , F02M55/04 , F02M57/02 , F02M57/026 , F02M59/14
摘要： A fuel injection device for smooth discharge of a gas accumulated therein comprising a fuel pump, a solenoid valve for injecting pressurized fuel into the intake passage of an engine, a high-pressure fuel passage extending from the fuel pump to the solenoid valve and has a medially positioned constant-pressure chamber, and a fuel return passage connected to a fuel return pipe, with the fuel return passage extending from the constant-pressure chamber and having a medially positioned priming pump. The constant-pressure chamber is configured with the top wall in the upper space thereof disposed above the opening of the high-pressure fuel passage opposite the solenoid valve, the fuel return passage opens into the upper space at a position above the opening of the high-pressure fuel passage, and the gas accumulating in the constant-pressure chamber is discharged from the upper space toward the fuel tank via the fuel return passage.
摘要翻译：一种燃料喷射装置，用于平稳地排放积聚在其中的气体，包括燃料泵，用于将加压燃料喷射到发动机的进气通道中的电磁阀，从燃料泵延伸到电磁阀的高压燃料通道，中间定位的恒压室和连接到燃料返回管的燃料返回通道，燃料返回通道从恒压室延伸并具有中间定位的启动泵。定压室的上部空间中的顶壁设置在与电磁阀相对的高压燃料通道的开口上方，燃料返回通道在高位开口上方的位置上方通向上部空间压力燃料通道，并且积存在恒压室中的气体经由燃料返回通道从上部空间朝向燃料箱排出。

8. 发明申请

US20220412295A1 ELECTRONICALLY CONTROLLED FUEL INJECTION DEVICE 有权
公开(公告)号：US20220412295A1
公开(公告)日：2022-12-29
申请号：US17847412
申请日：2022-06-23
申请人： ZAMA JAPAN KABUSHIKI KAISHA
发明人： Hideki Watanabe , Hiroo Ubukata
IPC分类号： F02M55/00 , F02M51/06
摘要： An electronically controlled fuel injection device that achieves reduced component count, simplified construction, and cost reduction while promoting discharge of vapor that is generated in a pressurizing chamber. With a fuel passage from a fuel intake pipe into a pressurizing chamber and a return passage that is a discharge passage for vapor generated in the pressurizing chamber, and a plunger with a prescribed reciprocating operation having a standby position set as a position enabling fuel supply and vapor discharge, the electronically controlled fuel injection device eliminates the need for an inlet check valve and promotes the discharge of vapor that is generated when fuel is supplied from the fuel intake pipe to the pressurizing chamber.

9. 发明授权

US09581117B2 Fuel injection device 有权
标题翻译：燃油喷射装置
公开(公告)号：US09581117B2
公开(公告)日：2017-02-28
申请号：US14546468
申请日：2014-11-18
申请人： ZAMA JAPAN KABUSHIKI KAISHA
发明人： Takumi Nonaka , Hideki Watanabe
IPC分类号： F02M51/06 , F02D29/06 , F02D41/30
CPC分类号： F02D41/345 , F02D29/06 , F02D41/30 , F02D41/3005 , F02D41/3082 , F02D2200/0404 , F02D2200/101 , F02M51/061 , F02M51/0678 , F02M2051/08
摘要： A fuel injection device comprising electricity-generating means generating electricity by rotation of an engine and outputting a predetermined signal, and a solenoid valve injecting fuel; the valve being opened as a result of a drive current applied to a coil, and the fuel being injected into an intake passage of the engine at a predetermined timing during the rotation of the engine; to ensure that the flow rate required during high-speed operation ca be adequately provided in a fuel injection device for injecting/supplying fuel to an engine. The electricity-generating means is an alternating current generation means attached to the engine in a crank angle position at which an output is generated in synchronization with the intake timing of the engine; the signal is an injection command signal applied to the solenoid valve as an alternating-current drive current; and the applied voltage increases with increased engine speed.
摘要翻译：一种燃料喷射装置，包括发电装置，通过发动机的旋转发出电力并输出预定信号;以及电磁阀，喷射燃料; 由于施加到线圈的驱动电流而使阀门打开，并且燃料在发动机旋转期间以预定的时刻喷射到发动机的进气通道中; 以确保在用于向发动机喷射/供给燃料的燃料喷射装置中适当地提供高速操作期间所需的流量。发电装置是在与发动机的进气定时同步地产生输出的曲柄角位置处附接到发动机的交流发电装置; 信号是作为交流驱动电流施加到电磁阀的喷射命令信号; 并且施加的电压随着发动机转速的增加而增加。

10. 发明申请

US20150128914A1 FUEL INJECTION DEVICE 审中-公开
标题翻译：燃油喷射装置
公开(公告)号：US20150128914A1
公开(公告)日：2015-05-14
申请号：US14546468
申请日：2014-11-18
申请人： ZAMA JAPAN KABUSHIKI KAISHA
发明人： Takumi Nonaka , Hideki Watanabe
IPC分类号： F02M51/06 , F02D41/30
CPC分类号： F02D41/345 , F02D29/06 , F02D41/30 , F02D41/3005 , F02D41/3082 , F02D2200/0404 , F02D2200/101 , F02M51/061 , F02M51/0678 , F02M2051/08
摘要： A fuel injection device comprising electricity-generating means generating electricity by rotation of an engine and outputting a predetermined signal, and a solenoid valve injecting fuel; the valve being opened as a result of a drive current applied to a coil, and the fuel being injected into an intake passage of the engine at a predetermined timing during the rotation of the engine; to ensure that the flow rate required during high-speed operation ca be adequately provided in a fuel injection device for injecting/supplying fuel to an engine. The electricity-generating means is an alternating current generation means attached to the engine in a crank angle position at which an output is generated in synchronization with the intake timing of the engine; the signal is an injection command signal applied to the solenoid valve as an alternating-current drive current; and the applied voltage increases with increased engine speed.
摘要翻译：一种燃料喷射装置，包括发电装置，通过发动机的旋转发出电力并输出预定信号;以及电磁阀，喷射燃料; 由于施加到线圈的驱动电流而使阀门打开，并且燃料在发动机旋转期间以预定的时刻喷射到发动机的进气通道中; 以确保在用于向发动机喷射/供给燃料的燃料喷射装置中适当地提供高速操作期间所需的流量。发电装置是在与发动机的进气定时同步地产生输出的曲柄角位置处附接到发动机的交流发电装置; 信号是作为交流驱动电流施加到电磁阀的喷射命令信号; 并且施加的电压随着发动机转速的增加而增加。

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