公开(公告)号：US5695693A

公开(公告)日：1997-12-09

申请号：US406567

申请日：1995-03-20

申请人： Kimio Koizumi ,  Satoru Araki ,  Yasuaki Kohira

发明人： Kimio Koizumi ,  Satoru Araki ,  Yasuaki Kohira

IPC分类号： F02M3/10 ,  F02M19/04 ,  F02M3/08

CPC分类号： F02M19/04 ,  F02M3/10 ,  F02M2003/105 ,  Y10S261/38 ,  Y10S261/84 ,  Y10T137/7062

摘要： A carburetor fuel adjusting device that facilitates control of the quantity of fuel that flows from the fuel chamber to an air intake port of a carburetor by making it possible for the user to adjust an adjustment valve within the limits defined by emission control regulations. The carburetor fuel adjusting device has a cap having two appendages to limit its turning in the lean mixture direction and in the rich mixture direction, and an engagement area to engage a valve extension of the fuel adjustment valves of a carburetor. The valve extensions are inserted through insertion holes of a retainer attached to the carburetor body. When the cap is retained by the retainer in a disengaged position, wherein the engagement area is not attached to the valve extensions of the fuel adjustment valves, the adjustment valves can be adjusted separately from the cap. The cap, however, can be moved forward to an engaged position wherein the engagement area of the cap becomes attached to the valve extensions. In the engaged position, the adjustment valves can be turned in unison with the cap within a range formed by the angle between the appendages which, when rotated, abut against stoppers.

摘要翻译： 一种化油器燃料调节装置，其使得用户可以在由排放控制规定限定的范围内调节调节阀，从而有助于控制从燃料室流向化油器的进气口的燃料量。 化油器燃料调节装置具有盖，其具有两个附件，以限制其在稀混合方向和富混合方向上的转动;以及接合区域，用于接合化油器的燃料调节阀的阀延伸。 阀门延伸部分通过连接在化油器主体上的保持架的插入孔插入。 当盖被保持器保持在脱离位置时，其中接合区域没有附接到燃料调节阀的阀延伸部，所以调节阀可以与盖分开调节。 然而，盖可以向前移动到接合位置，其中盖的接合区域附接到阀延伸部。 在接合位置，调节阀可以在由旋转时抵靠止动件的附件之间的角度形成的范围内与盖一起转动。

公开(公告)号：US5961896A

公开(公告)日：1999-10-05

申请号：US111569

申请日：1998-07-08

申请人： Kimio Koizumi ,  Yasuaki Kohira ,  Satoru Araki

发明人： Kimio Koizumi ,  Yasuaki Kohira ,  Satoru Araki

IPC分类号： F02M3/10 ,  F02M19/02 ,  F02M19/04

CPC分类号： F02M19/021 ,  F02M19/04 ,  F02M3/10 ,  F02M2003/105 ,  Y10S261/38 ,  Y10S261/84 ,  Y10T137/7062

摘要： In a first aspect, a carburetor fuel adjusting device that facilitates control of the quantity of fuel that flows from the fuel chamber to an air intake port of a carburetor by making it possible for the user to adjust an adjustment valve within the limits defined by emission control regulations. The carburetor fuel adjusting device has a cap having two appendages, and an engagement area to engage a valve extension of the fuel adjustment valves of a carburetor. The cap is retained by the retainer in either a disengaged position, or an engaged position wherein the engagement area of the cap becomes attached to the valve extensions. In the engaged position, the adjustment valves can be turned in unison with the cap within a range formed by the angle between the appendages which, when rotated, abut against stoppers. In a second aspect, a retaining plate of elastic material having two retainer holes adapted to receive and retain the pair of adjustment valves in a prescribed adjustment position is laid against an outer surface of the carburetor body. The adjustment valves each have a base-end portion and a small diameter portion, the threads of the base-end portion having an external diameter larger than that of the threads of the small diameter portion. The external diameter of the threads of the base-end portion is also larger than the diameter of each of the retainer holes of the retaining plate such that when the adjustment valve is screwed into the screw hole of the carburetor, the base-end portion cuts threads in the retainer holes of the retaining plate to thereby prevent rotation of the adjustment valve.

摘要翻译： 在第一方面，一种化油器燃料调节装置，其能够通过使用户能够将调节阀调节到由排放限定的限度内，从而能够控制从燃料室流向化油器的进气口的燃料量 控制规定。 化油器燃料调节装置具有两个附件的盖，以及用于接合化油器的燃料调节阀的阀延伸部的接合区域。 盖子由保持器保持在脱离位置或接合位置，其中盖子的接合区域附接到阀延伸部。 在接合位置，调节阀可以在由旋转时抵靠止动件的附件之间的角度形成的范围内与盖一起转动。 在第二方面中，具有两个用于将一对调节阀接收并保持在规定的调节位置的保持孔的弹性材料的保持板放置在化油器主体的外表面上。 调节阀各自具有基端部和小直径部，基端部的螺纹的外径大于小径部的螺纹的螺纹。 基端部的螺纹的外径也大于保持板的每个保持孔的直径，使得当调节阀拧入化油器的螺纹孔时，基端部切断 螺纹在保持板的保持孔中，从而防止调节阀旋转。

公开(公告)号：US5772927A

公开(公告)日：1998-06-30

申请号：US624757

申请日：1996-03-27

申请人： Kimio Koizumi ,  Yasuaki Kohira ,  Satoru Araki

发明人： Kimio Koizumi ,  Yasuaki Kohira ,  Satoru Araki

IPC分类号： F02M3/10 ,  F02M19/02 ,  F02M19/04

CPC分类号： F02M19/021 ,  F02M19/04 ,  F02M3/10 ,  F02M2003/105 ,  Y10S261/38 ,  Y10S261/84 ,  Y10T137/7062

摘要： In a first aspect, a carburetor fuel adjusting device that facilitates control of the quantity of fuel that flows from the fuel chamber to an air intake port of a carburetor by making it possible for the user to adjust an adjustment valve within the limits defined by emission control regulations. The carburetor fuel adjusting device has a cap having two appendages, and an engagement area to engage a valve extension of the fuel adjustment valves of a carburetor. The cap is retained by the retainer in either a disengaged position, or an engaged position wherein the engagement area of the cap becomes attached to the valve extensions. In the engaged position, the adjustment valves can be turned in unison with the cap within a range formed by the angle between the appendages which, when rotated, abut against stoppers. In a second aspect, a retaining plate of elastic material having two retainer holes adapted to receive and retain the pair of adjustment valves in a prescribed adjustment position is laid against an outer surface of the carburetor body. The adjustment valves each have a base-end portion and a small diameter portion, the threads of the base-end portion having an external diameter larger than that of the threads of the small diameter portion. The external diameter of the threads of the base-end portion is also larger than the diameter of each of the retainer holes of the retaining plate such that when the adjustment valve is screwed into the screw hole of the carburetor, the base-end portion cuts threads in the retainer holes of the retaining plate to thereby prevent rotation of the adjustment valve.

公开(公告)号：US5955007A

公开(公告)日：1999-09-21

申请号：US915358

申请日：1997-08-20

申请人： Kimio Koizumi ,  Yasuaki Kohira ,  Satoru Araki

发明人： Kimio Koizumi ,  Yasuaki Kohira ,  Satoru Araki

IPC分类号： F02M3/10 ,  F02M19/02 ,  F02M19/04

CPC分类号： F02M19/021 ,  F02M19/04 ,  F02M3/10 ,  F02M2003/105 ,  Y10S261/38 ,  Y10S261/84 ,  Y10T137/7062

摘要： In a first aspect, a carburetor fuel adjusting device that facilitates control of the quantity of fuel that flows from the fuel chamber to an air intake port of a carburetor by making it possible for the user to adjust an adjustment valve within the limits defined by emission control regulations. The carburetor fuel adjusting device has a cap having two appendages, and an engagement area to engage a valve extension of the fuel adjustment valves of a carburetor. The cap is retained by the retainer in either a disengaged position, or an engaged position wherein the engagement area of the cap becomes attached to the valve extensions. In the engaged position, the adjustment valves can be turned in unison with the cap within a range formed by the angle between the appendages which, when rotated, abut against stoppers. In a second aspect, a retaining plate of elastic material having two retainer holes adapted to receive and retain the pair of adjustment valves in a prescribed adjustment position is laid against an outer surface of the carburetor body. The adjustment valves each have a base-end portion and a small diameter portion, the threads of the base-end portion having an external diameter larger than that of the threads of the small diameter portion. The external diameter of the threads of the base-end portion is also larger than the diameter of each of the retainer holes of the retaining plate such that when the adjustment valve is screwed into the screw hole of the carburetor, the base-end portion cuts threads in the retainer holes of the retaining plate to thereby prevent rotation of the adjustment valve.

公开(公告)号：US07017535B2

公开(公告)日：2006-03-28

申请号：US10834315

申请日：2004-04-27

申请人： Satoru Araki ,  Kimio Koizumi

发明人： Satoru Araki ,  Kimio Koizumi

IPC分类号： F02B75/02

CPC分类号： F02M17/00

摘要： The present invention provides a carburetor that can be adapted to a variety of engines with different positional relationships between the location for feeding the air/fuel mixture and the location for feeding scavenging air. The carburetor a carburetor main body (22) with an air intake passage (24) forming a portion of the air/fuel mixture passage (23) and is provided with an air passage (33) that forms a portion of an air channel (32) for scavenging air. The air passage (33) is positioned parallel to an air intake passage (24), and the front end thereof is positioned further to the base end side than to the engine-side front end face of the carburetor main body (22), enhancing the degree of freedom for placing the conduit pipe (34) for connecting the air passage (33) to the scavenging air feed port (9). Also, the throttle valve (26) and the air valve (35) are butterfly valves with mutually parallel valve stems, and the interlocking mechanism thereof has a simple configuration.

摘要翻译： 本发明提供一种化油器，其可适用于用于供给空气/燃料混合物的位置和用于供给清除空气的位置之间具有不同位置关系的各种发动机。 化油器主体具有形成空气/燃料混合物通道（23）的一部分的进气通道（24），并且设有形成空气通道（32）的一部分的空气通道（33） ）清除空气。 空气通路33平行于进气通路24而定位，其前端位于比汽化器主体22的发动机侧的前端面更靠近基端侧，增强 用于将用于将空气通道（33）连接到扫气供气口（9）的导管（34）的自由度。 此外，节流阀26和空气阀35是具有相互平行的阀杆的蝶形阀，其互锁机构具有简单的结构。

公开(公告)号：US20060011155A1

公开(公告)日：2006-01-19

申请号：US11228933

申请日：2005-09-16

申请人： Satoru Araki ,  Kimio Koizumi

发明人： Satoru Araki ,  Kimio Koizumi

IPC分类号： F02M17/00

CPC分类号： F02M17/00

摘要： The present invention provides a carburetor that can be adapted to a variety of engines with different positional relationships between the location for feeding the air/fuel mixture and the location for feeding scavenging air. The carburetor a carburetor main body (22) with an air intake passage (24) forming a portion of the air/fuel mixture passage (23) and is provided with an air passage (33) that forms a portion of an air channel (32) for scavenging air. The air passage (33) is positioned parallel to an air intake passage (24), and the front end thereof is positioned further to the base end side than to the engine-side front end face of the carburetor main body (22), enhancing the degree of freedom for placing the conduit pipe (34) for connecting the air passage (33) to the scavenging air feed port (9). Also, the throttle valve (26) and the air valve (35) are butterfly valves with mutually parallel valve stems, and the interlocking mechanism thereof has a simple configuration.

摘要翻译： 本发明提供一种化油器，其可适用于用于供给空气/燃料混合物的位置和用于供给清除空气的位置之间具有不同位置关系的各种发动机。 化油器主体具有形成空气/燃料混合物通道（23）的一部分的进气通道（24），并且设有形成空气通道（32）的一部分的空气通道（33） ）清除空气。 空气通路33平行于进气通路24而定位，其前端位于比汽化器主体22的发动机侧的前端面更靠近基端侧，增强 用于将用于将空气通道（33）连接到扫气供气口（9）的导管（34）的自由度。 此外，节流阀26和空气阀35是具有相互平行的阀杆的蝶形阀，其互锁机构具有简单的结构。

公开(公告)号：US20070057386A1

公开(公告)日：2007-03-15

申请号：US11226228

申请日：2005-09-15

申请人： Kimio Koizumi

发明人： Kimio Koizumi

IPC分类号： F02M9/08 ,  F02M23/03

CPC分类号： F02B25/22 ,  F02B25/14 ,  F02B2075/025 ,  Y10S261/01

摘要： A carburetor for a stratified scavenging two-cycle engine, in which a throttle valve and a air valve are formed in a vale element that is a single cylindrical member in which a throttle through-hole and an air through-hole are diametrically formed and which is rotatably fitted in a body, the mixture passage and the air passage being formed piercing through a body, wherein the height of the body is decreased so as to miniaturize the carburetor as a whole, and the mixture passage 6 and the air passage 9 are formed in a single cylindrical common hole 69 in which the mixture passage 6 and the air passage 9 are partitioned by a partition wall 68.

摘要翻译： 一种用于分层清扫双循环发动机的化油器，其中节流阀和空气阀形成在其中节流通孔和空气通孔径向形成的单个圆柱形构件的阀元件中， 可旋转地装配在主体中，混合物通道和空气通道形成穿透主体，其中主体的高度减小，从而整体上使化油器小型化，混合通道6和空气通道9是 形成在单个圆柱形公共孔69中，其中混合物通道6和空气通道9被分隔壁68分隔开。

公开(公告)号：US20080088041A1

公开(公告)日：2008-04-17

申请号：US11953596

申请日：2007-12-10

申请人： Kimio Koizumi

发明人： Kimio Koizumi

IPC分类号： F02M7/00

CPC分类号： F02B25/22 ,  F02B25/14 ,  F02B2075/025 ,  Y10S261/01

摘要： A carburetor for a stratified scavenging two-cycle engine, in which a throttle valve and a air valve are formed in a vale element that is a single cylindrical member in which a throttle through-hole and an air through-hole are diametrically formed and which is rotatably fitted in a body, the mixture passage and the air passage being formed piercing through a body, wherein the height of the body is decreased so as to miniaturize the carburetor as a whole, and the mixture passage 6 and the air passage 9 are formed in a single cylindrical common hole 69 in which the mixture passage 6 and the air passage 9 are partitioned by a partition wall 68.

摘要翻译： 一种用于分层清扫双循环发动机的化油器，其中节流阀和空气阀形成在其中节流通孔和空气通孔径向形成的单个圆柱形构件的阀元件中， 可旋转地装配在主体中，混合物通道和空气通道形成穿透主体，其中主体的高度减小，从而整体上使化油器小型化，混合通道6和空气通道9是 形成在单个圆柱形公共孔69中，其中混合物通道6和空气通道9被分隔壁68分隔开。

公开(公告)号：US20050116363A1

公开(公告)日：2005-06-02

申请号：US10992813

申请日：2004-11-22

申请人： Kimio Koizumi

发明人： Kimio Koizumi

IPC分类号： F02M1/02 ,  F02D9/10 ,  F02M3/09 ,  F02M3/12 ,  F02M7/12

CPC分类号： F02M3/09 ,  F02D9/1065 ,  F02M3/12

摘要： A choke valve is fixed to a predetermined position even after manual release, whereby an improved start and a subsequent stable operation are obtained. A fixing force and a valve opening force are applied to a choke valve shaft. Further, a pin of a choke valve lever pushes an arm piece of a throttle valve lever to slightly open a throttle valve a choke valve is in a fully open position, and the choke valve opens half way to return the throttle valve to an idle position by a valve closing spring when a complete firing of the engine is achieved. When opening the throttle valve, a cam of the throttle valve lever pushes the pin to open the choke valve, a valve opening force overcomes a fixing force near the fully open position to set the choke valve to the fully open position, and the pin separates from the cam to open and close the throttle valve without interference with the choke valve. The fixing force overcomes the valve opening force from the fully close position to a position proximate to the fully open position, and the choke valve is fixed even after manual release.

摘要翻译： 即使在手动释放之后，阻塞阀也固定到预定位置，从而获得改进的启动和随后的稳定操作。 一个固定力和一个开阀力被施加到阻风阀轴上。 此外，节流阀杆的销推动节气门杆的臂件稍微打开节流阀，阻塞阀处于完全打开位置，并且阻塞阀打开半途而将节流阀返回到空转位置 通过实现发动机的完全燃烧时的关闭弹簧。 当打开节流阀时，节气门杆的凸轮推动销打开阻塞阀，阀打开力克服了完全打开位置附近的固定力，将阻塞阀设置到完全打开位置，并且销分离 从凸轮开启和关闭节流阀，而不会阻塞节流阀。 固定力克服了从完全关闭位置到靠近完全打开位置的位置的阀打开力，即使在手动释放之后，阻塞阀也是固定的。

公开(公告)号：US07722015B2

公开(公告)日：2010-05-25

申请号：US11954548

申请日：2007-12-12

申请人： Kimio Koizumi

发明人： Kimio Koizumi

IPC分类号： F02M7/24 ,  F02M9/08

CPC分类号： F02M9/08 ,  F02B25/20 ,  F02M13/04 ,  F02M17/04 ,  Y10S261/01

摘要： The present invention provides an internal shape of a rotor for a two-bore rotary carburetor used in a stratified scavenging engine whereby an engine for a power saw, lawn mower, or the like can be stabilized in the course of a complete change in orientation during idling. A groove pocket (10) in communication with a fuel supply-side bore (8) is formed at the aperture edge of each of the upstream end and the downstream end of a carburetor rotor valve (6) toward an accelerated rotation direction in the fuel supply-side bore (8) of the rotor valve (6). The groove pocket (10) is shaped so as to gradually rise and decrease in cross-sectional surface area toward the accelerated rotation direction along a peripheral surface of the rotor valve (6). The resulting structure is one in which the groove pocket (10) is initially superposed with the mixing channel during horizontal rotation of the rotor valve (6), the fuel supply-side bore (8) and the mixing channel are in communication with each other, and the fuel supply-side bore (8) opens before the air supply-side bore (7) does.

摘要翻译： 本发明提供了一种用于分层清扫发动机的双孔旋转化油器的转子的内部形状，由此在功能锯，割草机等的发动机可以在取向完全变化的过程中稳定 空转 与燃料供给侧孔（8）连通的槽口（10）形成在化油器转子阀（6）的上游侧端部和下游端的开口端部朝向燃料的加速旋转方向 转子阀（6）的供给侧孔（8）。 凹槽（10）成形为沿着转子阀（6）的周面朝着加速旋转方向逐渐上升和下降。 所得到的结构是在转子阀（6）的水平旋转期间槽槽（10）最初与混合通道重叠的结构，燃料供给侧孔（8）和混合通道彼此连通 ，并且燃料供给侧孔（8）在供气侧孔（7）之前打开。