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1. 发明专利

JP3945014B2 Constant vacuum type carburetor 失效
公开(公告)号：JP3945014B2
公开(公告)日：2007-07-18
申请号：JP13610998
申请日：1998-04-30
申请人：株式会社ケーヒン
发明人：陽一柳井
IPC分类号： F02M7/17
CPC分类号： F02M7/17 , Y10S261/38 , Y10S261/68

2. 发明专利

JP3856203B2 Fuel supply regulation control device of the carburetor 有权
公开(公告)号：JP3856203B2
公开(公告)日：2006-12-13
申请号：JP2001324298
申请日：2001-10-23
申请人：本田技研工業株式会社
发明人：真也安達 , 勉村岡
IPC分类号： F02M3/045 , F02M7/12 , F02D35/00 , F02M3/07 , F02M3/09 , F02M3/12 , F02M7/17
CPC分类号： F02M7/17 , F02D35/0076 , F02D2200/0404 , F02D2200/501 , F02M3/075

3. 发明专利

JP2006329074A Air-fuel mixture correcting device in constant vacuum type carburetor 审中-公开
标题翻译：固体真空型空气燃料混合机修正装置
公开(公告)号：JP2006329074A
公开(公告)日：2006-12-07
申请号：JP2005153832
申请日：2005-05-26
申请人： Keihin Corp , 株式会社ケーヒン
发明人： U YOSHIO , SATO KIYOTO , MATSUZAKI KOJI , WAKANA YOSHIKAZU
IPC分类号： F02M7/17 , F02M1/06 , F02M1/10 , F02M1/12
摘要： PROBLEM TO BE SOLVED: To provide an air-fuel mixture correcting device of a constant vacuum type carburetor, enabling a vehicle to start and travel just after starting at the low temperature and in warming-up operation, in the constant vacuum type carburetor having an automatic starter. SOLUTION: This constant vacuum carburetor has the automatic starter S and a temperature correcting device T. The temperature correcting device T is formed by arranging a control valve element 8 for controlling opening-closing of a negative pressure control hole and an air control hole 6 by a thermosensible reactive member 87 in a control valve guide cylinder 4 for opening an atmospheric hole 5, the negative pressure control hole 7 and the air control hole 6. A main air jet for constituting a main fuel system of the constant vacuum type carburetor is formed in parallel by a first main air jet 1 and a second main air jet 11 connected to a downstream side main air passage 2. The atmospheric hole 5 is connected to the atmosphere, and the negative pressure control hole 7 is connected to a pressure receiving chamber 60, and the air control hole 6 is connected to the second main air jet 11. At the low temperature, the control valve element 8 cuts off the air control hole 6 and the atmospheric hole 5, and communicates the negative pressure hole 7 with the atmospheric hole 5. The control valve element 8 communicates the air control hole 6 with the atmospheric hole 5, and also cuts off the negative pressure control hole 7 and the atmospheric hole 5 in response to a temperature rise. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供恒定真空型化油器的空气燃料混合物校正装置，能够使车辆在低温启动和加热运转之后立即启动和运行，在恒定真空型化油器具有自动起动器。
解决方案：该恒定真空化油器具有自动启动器S和温度校正装置T.温度校正装置T通过布置用于控制负压控制孔的开闭的控制阀元件8和空气控制孔6由用于打开大气孔5的控制阀导向缸4中的热敏反应构件87，负压控制孔7和空气控制孔6.用于构成恒定真空型主燃料系统的主空气喷射化油器由第一主空气喷射口1和连接到下游侧主空气通道2的第二主喷气口11平行地形成。大气孔5连接到大气，负压控制孔7连接到压力接收室60和空气控制孔6连接到第二主空气喷嘴11.在低温下，控制阀元件8切断空气控制孔6和气氛通孔5将负压孔7与大气孔5连通。控制阀元件8将空气控制孔6与大气孔5连通，并且还将负压控制孔7和大气孔5切断在响应温度上升。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP3702370B2 Sliding throttle valve type carburetor 失效
公开(公告)号：JP3702370B2
公开(公告)日：2005-10-05
申请号：JP15945794
申请日：1994-06-17
申请人：株式会社ケーヒン
发明人：健二中里
IPC分类号： F02M1/06 , F02M3/10 , F02M7/17 , F02M9/06

5. 发明专利

JP2004176647A Carburetor 有权
公开(公告)号：JP2004176647A
公开(公告)日：2004-06-24
申请号：JP2002345139
申请日：2002-11-28
申请人： Yoshimura Japan:Kk , 株式会社ヨシムラジャパン
发明人： YOSHIMURA FUJIO
IPC分类号： F02M19/04 , F02M7/17
摘要： PROBLEM TO BE SOLVED: To provide a carburetor for largely reducing cost, further improving fuel consumption ratio, achieving favorable throttle response, and eliminating irregularity in engine actuation characteristics.
SOLUTION: An adjusting member for gasoline injection quantity, fixed to a piston projected into a venturi pipe at an upper part, and engaged in a gasoline supply nozzle at a lower end, has a pipe part of outer diameter coinciding with inner diameter of the gasoline supply nozzle, and a plurality of gasoline injection holes are bored in a circumferential wall surface of the pipe part in this carburetor. A throat part with a smaller diameter is formed in part of an outer surface of the adjusting member. The throat part is formed roughly at a center of the adjusting member. A part of the adjusting member above the throat part is formed solid, and a part of it below the throat part is formed as a pipe part. The gasoline injection holes are bored in the pipe part. The gasoline injection holes are provided bored alternately at deflected height positions at diametrically facing position in the pipe part.
COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2002155803A PISTON THROTTLE VALVE TYPE CARBURETOR 失效
公开(公告)号：JP2002155803A
公开(公告)日：2002-05-31
申请号：JP2000350536
申请日：2000-11-17
申请人： WALBRO JAPAN INC
发明人： TAKANO ATSUSHI , GIOVANNI BIMERUKATTEI , TERAKADO HITOSHI
IPC分类号： F02M9/06 , F02M7/17
摘要： PROBLEM TO BE SOLVED: To provide a piston throttle valve type carburetor that dulls the operation of a vacuum actuator of a piston throttle valve in a cold engine start-up. SOLUTION: The cupped piston throttle valve 18 is vertically movably supported at right angles to an intake passage 13 crossing through a body 6. An atmospheric chamber 10 is defined under a diaphragm 3 coupled to the upper end of the piston throttle valve 18, and a vacuum chamber 5 is defined over the diaphragm 3 so as to house a return spring 4 and introduce thereinto an intake vacuum under the piston throttle valve 18. A fuel control needle valve 20 supported on the lower end of the piston throttle valve 18 is passed through a main fuel supply pipe 28 extending from the intake passage 13 to a fuel storage tank 24. An on-off valve B openable by an intake vacuum in an engine start-up is connectedly interposed midway of a passage connecting the vacuum chamber 5 and the atmospheric chamber 10.

7. 发明专利

JP2001289124A FIXED NEGATIVE PRESSURE TYPE CARBURETOR 失效
公开(公告)号：JP2001289124A
公开(公告)日：2001-10-19
申请号：JP2000103102
申请日：2000-04-05
申请人： NIPPON CARBURETER
发明人： KUDO SHUICHI
IPC分类号： F02M19/00 , F02M7/17 , F02M9/06 , F02M19/08
摘要： PROBLEM TO BE SOLVED: To smooth the operation of an inlet piston and stabilize the flow rate of a fuel by fitting a guide member of a venturi body for the inlet piston into a slit guide groove for preventing the occurrence of a swirl flow at both sides of an inlet passage. SOLUTION: A carburetor 15 is separated into two bodies, a first body 31 at the upstream side and a second body 41 at the downstream side, the first body 31 being fitted into a mounting recessed portion of the second body 41. A first peripheral wall face 17A and a second peripheral wall face 17B of a guide hole 17 of the venturi body 2 and a first side face 18A and a second side face 18B of the guide groove 18 of the guide member 12 are formed on the fitted-in end face of the first body 31 and on the corner face of the mounting recessed portion, respectively. Thus, the operation of the inlet piston 1 is smoothed on a surface requiring no size correcting work even if no cast taper exist.

8. 发明专利

JP2000080959A CARBURETOR OF FIXED VACUUM SLIDING THROTTLE VALVE TYPE 失效
公开(公告)号：JP2000080959A
公开(公告)日：2000-03-21
申请号：JP25245098
申请日：1998-09-07
申请人： NIPPON WALBRO KK
发明人： OU GIYOUTOU , KOBAYASHI TAKESHI
IPC分类号： F02M7/17
摘要： PROBLEM TO BE SOLVED: To set the movement of the tip portion of a forcible operation lever driven by a throttle valve operation lever identical to that of the tip portion of a follower lever engaged with a sliding throttle valve. SOLUTION: A negative pressure chamber 14 is plotted in the upper side of a film 5 and an atmosphere chamber 13 is plotted in its lower side, the film 5 being held between the upper end part and the upper cover 4 of a carburetor main body 6. In a guiding opening 17 orthogonal to the intake path 33 of the carburetor main body 6, a sliding throttle valve 26 connected to the film 5 is supported so as to be vertically moved. A rotary shaft 1 for connecting a throttle valve operation lever 56 is disposed in the atmosphere chamber 13, and a forcible operation lever for engaging/disengaging a follower lever 8 rotatably supported by the rotary shaft 7 from the throttle valve operation lever 56 according to the opening degree of the sliding throttle valve 26 is axially supported by the throttle valve operation lever 56. A notch provided in the tip of the follower lever 8 is engaged with the pin 25 of a wall plate 22 in the side of the sliding throttle valve 26. On the upper surface of an upper end flange 26a, the film 5 and a pressing plate 10 are connected by bolts by laminating a reinforcing plate 50 integral with the wall plate 22 on its lower surface.

9. 发明专利

JP2000027704A FLOAT TYPE CARBURETOR FOR FOUR CYCLE AND TWO CYCLE INTERNAL COMBUSTION ENGINE WHICH ARE IMPROVED IN TEMPERATURE CORRECTION, PREVENTION FOR FUEL LEAKAGE AND FUEL CLOGGING, AND ENLARGEMENT OF OPERATABLE TILTING ANGLE OF ENGINE 失效
公开(公告)号：JP2000027704A
公开(公告)日：2000-01-25
申请号：JP22991198
申请日：1998-07-09
申请人： ISHIKAWA YOSHIHIRO
发明人： ISHIKAWA YOSHIHIRO
IPC分类号： F02M3/055 , F02M5/02 , F02M5/12 , F02M7/00 , F02M7/17 , F02M7/18
摘要： PROBLEM TO BE SOLVED: To provide a float type carburetor for a four cycle or two cycle internal combustion engine which is improved in prevention fuel leakage and fuel clogging caused by malfunction of a float and a needle valve, constant air-fuel ratio under cold and hot temperature, and smoothness of operation against inclination due to inclined ground. SOLUTION: A float 7 is integrated with a needle value 5, and is rotated around a pin 6. A fuel supply amount is perfectly controlled by the needle valve 5 according to the motion of the float 7. An air-fuel ratio is kept constant while using an orifice ring which seals alcohol or mercury and adopts volumetric expansion caused by temperature fluctuation, and a fuel injection port needle valve. A float chamber 8 has depth to some extent. Z tubes for increasing an operatable tilting angle are prepared by four. A float chamber a fastening bolt houses an air-fuel ratio controlling needle valve, a rubber vessel sealing compressed air, and a spring for keeping the air-fuel ratio constant. A bearing is arranged in a manifold for keeping a carburetor horizontal.

10. 发明专利

JPH11190254A CONSTANT VACUUM SLIDING THROTTLE VALVE TYPE CARBURETOR 失效
公开(公告)号：JPH11190254A
公开(公告)日：1999-07-13
申请号：JP36712197
申请日：1997-12-25
申请人： NIPPON WALBRO KK
发明人： OU GIYOUTOU , KOBAYASHI TAKESHI
IPC分类号： F02M9/06 , F02M7/17
摘要： PROBLEM TO BE SOLVED: To provide a constant-vacuum sliding-throttle-valve type carburetor which is small, has a good intake efficiency, and is excellent in acceleration performance, particularly for a two-wheeled vehicle. SOLUTION: An upper cover 4 is coupled to the upper end wall of a carburetor main body 6 in such a way as to sandwich the edge of a circular film 5 to define a pressure receiving chamber 54 and an atmospheric chamber 13 above and below the film 5, respectively. A sliding throttle valve 26 controlling the passage area of an intake path 33 in the carburetor main body 6 is elevetably fitted into an opening 17 which is perpendicular to the intake path 33. The upper-end flange 26a of the sliding throttle valve 26 is coupled to the film 5, and a switching valve 15 driven by means of a throttle valve control lever 8 and opening and closing an atmospheric hole 16 passing through the upper end flange 26a is elevetably fitted into the cylinder part 21 of the sliding throttle valve 26. A negative pressure passage 51 passing through the sliding throttle valve 26 to introduce the negative pressure of the intake path 33 into the pressure receiving chamber 14 is provided in the sliding throttle valve 26. The throttle valve control lever 8 controlling the opening of the sliding throttle valve 26 and a main spindle 7 by which the throttle valve control lever 8 is rotatably supported are placed within the atmospheric chamber 13. The center of the film 5 is biased toward the upstream side of the intake path 33 from the center of a fuel supply nozzle 30 which ejects fuel.

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