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51. 发明专利

JP4696058B2 Rotor in the shape of 2 Boarotari vaporizer for stratified scavenging engine 有权
公开(公告)号：JP4696058B2
公开(公告)日：2011-06-08
申请号：JP2006350760
申请日：2006-12-27
申请人：ザマ・ジャパン株式会社
发明人：喜美男小泉
IPC分类号： F02M19/00 , F02M9/08 , F02M17/04
CPC分类号： F02M9/08 , F02B25/20 , F02M13/04 , F02M17/04 , Y10S261/01

52. 发明专利

JP2008163754A Rotor internal configuration of 2-bore rotary carburetor for stratified-scavenging engine 有权
标题翻译：用于分离式扫气发动机的2缸旋转式碳酸氢机的转子内部配置
公开(公告)号：JP2008163754A
公开(公告)日：2008-07-17
申请号：JP2006350760
申请日：2006-12-27
申请人： Zama Japan Co Ltd , ザマ・ジャパン株式会社
发明人： KOIZUMI KIMIO
IPC分类号： F02M19/00 , F02M9/08 , F02M17/04
CPC分类号： F02M9/08 , F02B25/20 , F02M13/04 , F02M17/04 , Y10S261/01
摘要： PROBLEM TO BE SOLVED: To provide a rotor internal configuration of a 2-bore rotary carburetor for a stratified-scavenging engine stabilizing the engine of a power saw, a lawnmower or the like in idling and all position changing.
SOLUTION: A fuel supply side bore 8 of a carburetor rotor valve 6 is formed with groove pockets 10 communicating with the fuel supply side bore 8 respectively in opening edges of an upstream end and a downstream end on a side of accelerating rotation direction of the rotor valve 6. The groove pocket 10 is in a shape of gradually turning upward to the side of accelerating rotation direction along a peripheral surface of the rotor valve 6 and decreasing in cross sectional area. The construction is therefore such that in horizontal rotation of the rotor valve 6, the groove pockets 10 first lap over a mix passage, the fuel supply side bore 8 and the mix passage are brought into communication and the fuel supply side bore 8 is opened before an air supply side bore 7.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于分级扫气发动机的2孔旋转式化油器的转子内部结构，其使怠速和全部位置变化中的动力锯，割草机等的发动机稳定。解决方案：化油器转子阀6的燃料供给侧孔8形成有分别在加速旋转方向一侧的上游端和下游端的开口边缘与燃料供给侧孔8连通的槽口10 槽槽10的形状沿着转子阀6的周面向加速旋转方向的上方逐渐向上方转动，截面积减小。因此，该结构使得在转子阀6的水平旋转中，凹槽10首先在混合通道上搭接，燃料供给侧孔8和混合通道连通，并且燃料供给侧孔8在空气供应侧孔7.版权所有（C）2008，JPO＆INPIT

53. 发明专利

JP2008031858A Starting device for rotary throttle valve type carburetor 审中-公开
标题翻译：旋转节流阀类型的启动装置
公开(公告)号：JP2008031858A
公开(公告)日：2008-02-14
申请号：JP2006203099
申请日：2006-07-26
申请人： Walbro Japan Inc , 日本ウォルブロー株式会社
发明人： HORIKAWA TAKASHI
IPC分类号： F02M1/00 , F02M9/08
摘要： PROBLEM TO BE SOLVED: To optionally adjust increase in air flow rate and fuel injection quantity in the start.
SOLUTION: An operating member 15 is supported to be capable of linear motion by a support member 14 integrated with a cover body of a rotary throttle valve type carburetor so that the operating member 15 can be advance/retract to/from between the cover body and a radially outward lever member 4 integrated with a valve rod 3b. A fuel adjusting screw member 18 is arranged on a lever member so that the screw member 18 is engaged with the fully-closed lever member, by pushing the operating member into a lever member side, and an opening adjusting screw member 16 is arranged at a tip part of the operating member so that the screw member 16 is engaged with an engaging recess part 19 arranged on a second arm part 4b integrated with the lever member. Increase in fuel injection quantity and increase in air flow rate can be separately adjusted by each of the screw members, and setting can be precisely performed depending on atmospheres. Precision in setting is higher than that of a conventional art in which a plurality of stages of setting can be performed, and good startability in various atmospheres is implemented.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：在开始时可选地调节空气流量和燃料喷射量的增加。解决方案：操作构件15被支撑成能够通过与旋转节气门式化油器的盖体一体化的支撑构件14直线运动，使得操作构件15能够在/ 盖体和与阀杆3b成一体的径向向外的杆构件4。燃料调节螺钉构件18布置在杠杆构件上，使得螺钉构件18通过将操作构件推入杠杆构件侧而与全闭合杆构件接合，并且开口调节螺钉构件16布置在操作构件的尖端部分，使得螺钉构件16与布置在与杆构件一体化的第二臂部分4b上的接合凹部19接合。燃料喷射量的增加和空气流量的增加可以通过每个螺杆构件分别调节，并且可以根据气氛精确地进行设定。设定精度高于可进行多级设定的现有技术的精度，实现各种气氛的良好的启动性。版权所有（C）2008，JPO＆INPIT

54. 发明专利

JP3952243B2 Membrane-type carburetor 有权
公开(公告)号：JP3952243B2
公开(公告)日：2007-08-01
申请号：JP36758898
申请日：1998-12-24
申请人：日本ウォルブロー株式会社
发明人：崇安部井 , 民夫相原
IPC分类号： F02M9/08 , F02M17/04 , F02M7/08 , F02M37/12 , F02M37/16

55. 发明专利

JP2007046545A Stratified scavenging carburetor 审中-公开
标题翻译：分层锯切机
公开(公告)号：JP2007046545A
公开(公告)日：2007-02-22
申请号：JP2005232120
申请日：2005-08-10
申请人： TI Walbro Japan株式会社 , Ti Walbro Japan Kk
发明人： TAKAHASHI TOSHIMASA , MICHIYAMA YOSHIAKI
IPC分类号： F02M11/00 , F02B25/20 , F02B25/22 , F02D9/02 , F02D9/10 , F02M9/08
CPC分类号： Y02T10/146
摘要： PROBLEM TO BE SOLVED: To provide a stratified scavenging carburetor capable of being further miniaturized.
SOLUTION: A through hole 7d formed in a valve element 7b to communicate with an air passage 1b is formed to have a cross sectional shape being long and flat in the direction of axial line of the valve element like a circular column. The direction having small width in the flat cross sectional shape of the through hole becomes the direction of diameter of the valve element like the circular column so that length in the radial direction of the valve element like the circular column can be shortened for a valve element provided with a hole having a circular cross sectional shape having the same cross sectional area as that of the through hole 7d of the valve element 7b. By forming the through hole communicating with the air passage into the flat cross sectional shape as the valve element of a rotary valve, diameter of a member like a circular column can be reduced while ensuring the same flow passage area. As a result, the carburetor for the direction having small width (radial direction of the member like the circular column) can be miniaturized.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供能够进一步小型化的分层清除化油器。解决方案：形成在阀元件7b中以与空气通道1b连通的通孔7d形成为如圆柱体那样在阀元件的轴线方向上具有长而扁平的横截面形状。贯通孔的扁平截面形状的宽度方向成为圆柱体的阀体的直径方向，因此可以缩短阀元件的径向长度，如圆柱体设置有具有与阀元件7b的通孔7d相同的横截面积的圆形横截面形状的孔。通过将与空气通道连通的通孔形成为平面截面形状作为旋转阀的阀元件，可以减小圆柱形构件的直径，同时确保相同的流路面积。结果，可以使具有小宽度（诸如圆柱体的部件的径向）的方向的化油器小型化。版权所有（C）2007，JPO＆INPIT

56. 发明专利

JP2006250110A Air/fuel mixture regulating mechanism for rotary throttle valve type evaporator 审中-公开
标题翻译：旋转式阀门式蒸发器的空气/燃料混合调节机构
公开(公告)号：JP2006250110A
公开(公告)日：2006-09-21
申请号：JP2005070771
申请日：2005-03-14
申请人： TI Walbro Japan株式会社 , Ti Walbro Japan Kk
发明人： HORIKAWA TAKASHI
IPC分类号： F02M9/06 , F02M3/10 , F02M9/08 , F02M17/04
摘要： PROBLEM TO BE SOLVED: To facilitate regulating work in a rotary throttle valve type evaporator conducting idle regulation and normal operation regulation, and reduce restriction to layout in an installation state to an engine.
SOLUTION: An idle regulation needle valve 15 is driven into an axial hole 24 provided in a valve stem 3b of a rotary valve element 3 in the rotary throttle valve type evaporator. A normal operation regulation valve 21 to regulate a fuel flow limit value in normal operation is provided to be parallel to the axis of the rotary valve element, and the normal operation regulation valve is driven into the hole 23 to be incorporated. Tool engagement grooves 15a and 21a are respectively provided in head parts of the valves 15 and 21 for tools to be engaged in regulation.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了便于在旋转式节气门式蒸发器中进行调节作业，进行怠速调节和正常运行调节，并且减少了在安装状态下对发动机布置的限制。解决方案：怠速调节针阀15被驱动到设置在旋转节流阀式蒸发器中的旋转阀元件3的阀杆3b中的轴向孔24中。设置用于调节正常操作中的燃料流量极限值的正常操作调节阀21与旋转阀元件的轴线平行，并且将正常操作调节阀驱动到要被并入的孔23中。工具接合槽15a和21a分别设置在用于调节的工具的阀15和21的头部中。版权所有（C）2006，JPO＆NCIPI

57. 发明专利

JP2006105127A Air fuel mixture regulating device for carburetor 审中-公开
标题翻译：空气燃料混合器调节装置
公开(公告)号：JP2006105127A
公开(公告)日：2006-04-20
申请号：JP2005213846
申请日：2005-07-25
申请人： Walbro Engine Management Llc , ウォルブロエンジンマネージメントリミテッドライアビリティーカンパニー
发明人： DOW PAUL J , OGASAWARA HIROKI , TAKAHASHI TETSUYA , TAKAHASHI TOSHIMASA , VIMERCATI GIOVANNI
IPC分类号： F02M3/10 , F02M9/08 , F02M19/04
摘要： PROBLEM TO BE SOLVED: To provide a device preventing unprepared motion of a fuel flow calibration setting needle.
SOLUTION: A body of a rotary throttle valve type carburetor includes a throttle chamber communicating to a air fuel mixing passage and an air fuel mixing passage, and a fuel flow passage. A throttle valve is stored in the chamber movably in a rotation and an axial direction, and moves between an idling position and an expansion open position to control air fuel mixture flow in the mixing passage. An insertion valve threadedly inserted in and retained by the carburetor adjusts flow rate of fuel from the carburetor through the fuel flow passage. The insertion valve is rotated and moved in an axial direction along the thread by a tool engagement part of the insertion valve. The tool engagement part is not in a round shape and mates with just a special tool. The insertion valve is retained by the throttle valve and moves together with the same. The tool engagement part has a flat surface and is in a roughly D-shape. A carburetor body includes a recess in which the tool engagement part is arranged to limit entrance to the tool engagement part.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种防止燃料流量校准设定针的无准备运动的装置。解决方案：旋转节流阀型化油器的主体包括与空气燃料混合通道和空气燃料混合通道连通的节流室和燃料流动通道。节气门以旋转和轴向方式可移动地存储在腔室中，并且在怠速位置和膨胀打开位置之间移动，以控制混合通道中的空气燃料混合物流动。螺纹插入并保持在化油器中的插入阀调节来自化油器的燃料通过燃料流动通道的流量。插入阀通过插入阀的工具接合部沿着螺纹沿轴向旋转移动。工具接合部分不是圆形，只与专用工具相配合。插入阀由节流阀保持并与其一起移动。工具接合部具有平坦的表面并且大致为D形。化油器主体包括凹部，其中工具接合部被布置成限制到工具接合部的入口。版权所有（C）2006，JPO＆NCIPI

58. 发明专利

JP2005002887A Rotary throttle valve type carburetor 审中-公开
标题翻译：旋转节流阀类型
公开(公告)号：JP2005002887A
公开(公告)日：2005-01-06
申请号：JP2003167408
申请日：2003-06-12
申请人： Walbro Japan Inc , 株式会社日本ウォルブロー
发明人： TAKANO ATSUSHI , MICHIYAMA YOSHIAKI , OKANE SHINICHI , TOBIUCHI TERUHIKO
IPC分类号： F02M9/08 , F02M17/08
CPC分类号： F02M9/085 , Y10S261/39
摘要： PROBLEM TO BE SOLVED: To optimize setting of a fuel discharge amount in a low opening range of a rotary throttle valve, and to widen a range of engine characteristics.
SOLUTION: A rotary throttle valve type carburetor 1 comprises: an intake passage 3; a rotary throttle valve 5 opening/closing the intake passage; a fueling nozzle 7 projecting and inserted upward in a venturi hole 6 of the rotary throttle valve; a needle 8 for fuel gauging hanging in the venturi hole of the rotary throttle valve and inserted into the fueling nozzle. In the carburetor 1, a fuel discharge passage 23 having a portion whose cross section is gradually increases upward is formed in an inner face of one side part of a peripheral wall of the fueling nozzle. Since the tip of the needle fits to the part with cross section of the fuel discharge passage gradually increasing in a range of slight lift amount of the needle, change in cross section of the passage along with vertical motion of the needle becomes slow.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了优化在旋转节流阀的低开度范围内的燃料排出量的设定，并且扩大发动机特性的范围。解决方案：旋转节气门式化油器1包括：进气通道3; 打开/关闭进气通道的旋转节流阀5; 在旋转节流阀的文丘里孔6中向上突出并插入的加燃料喷嘴7; 用于燃料计量的针8，其悬挂在旋转节流阀的文丘里孔中并插入加油嘴中。在化油器1中，在燃料喷嘴的周壁的一个侧面的内面形成具有横截面逐渐向上增加的部分的燃料排出通路23。由于针的尖端配合到具有燃料排出通道的截面的部分，所以在针的微小提升量的范围内逐渐增加，通道的横截面随着针的垂直运动的变化变慢。版权所有（C）2005，JPO＆NCIPI

59. 发明专利

JP2003184654A ROTARY THROTTLE VALVE TYPE CARBURETOR AND METHOD FOR FUEL SUPPLY ADJUSTMENT 审中-公开
公开(公告)号：JP2003184654A
公开(公告)日：2003-07-03
申请号：JP2002296019
申请日：2002-10-09
申请人： WALBRO CORP
发明人： PATTULLO GEORGE M
IPC分类号： F02M3/06 , F02M3/09 , F02M3/12 , F02M3/14 , F02M7/24 , F02M9/06 , F02M9/08 , F02M9/12 , F02M17/04
摘要： PROBLEM TO BE SOLVED: To provide an improved fuel adjustment device for a rotary throttle valve type carburetor and a method for fuel supply adjustment. SOLUTION: The rotary throttle valve type carburetor is provided with a piecing air duct in which a throttle valve moves between an idling position and a throttle opening position, a fuel quantity adjustment needle for changing the size of an injection port of a fuel injection passage, and a bypass air duct. An outlet of the bypass air duct is connected to the piecing air duct at the idling time of an engine, and closed by the throttle valve when the throttle valve moves from the idling position to the throttle opening position. In setting for idling, an upper stream end of the bypass air duct is opened to a bypass air source to allow the air extraction and to set a fuel ratio of fuel mixed air to an allowable maximum value. In addition, the fuel quantity adjustment needle is raised to enlarge the opening of the injection port. COPYRIGHT: (C)2003,JPO

60. 发明专利

JP2002539368A 失效
公开(公告)号：JP2002539368A
公开(公告)日：2002-11-19
申请号：JP2000605089
申请日：2000-03-10
IPC分类号： F02M1/02 , F02B25/16 , F02B25/20 , F02M7/02 , F02M7/06 , F02M7/08 , F02M7/24 , F02M9/08 , F02M13/02 , F02M13/04 , F02M17/04 , F02M19/00

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