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1. 发明专利

JPH11182229A MUFFLER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH11182229A
公开(公告)日：1999-07-06
申请号：JP35066997
申请日：1997-12-19
申请人： KIORITZ CORP
发明人： SAKAGUCHI MASAO , SATO SHIGERU
IPC分类号： F01N1/14 , F01N3/34
摘要： PROBLEM TO BE SOLVED: To provide a muffler for an internal combustion engine reducing CO components in exhaust gas by providing outside air intake means for taking outside air into an expansion chamber using exhaust gas jet and effectively reducing emission of unpurified exhaust gas to the outside caused by pulsation of exhaust gas. SOLUTION: A muffler for an internal combustion engine is provided with expansion chambers 31, 32 into which exhaust gas exhausted from an exhaust port 10 of the internal combustion engine 1 is led. Outside air intake means 25, 26 for taking outside air into the expansion chamber 31 using led-in exhaust jet are provided near an exhaust gas lead-in part in the expansion chamber 31, and a check valve 80 allowing intake of outside air but impeding emission of unpurified exhaust gas to the outside is provided between the outside air intake means 25, 26 and the outside.

2. 发明专利

JPH09280053A TWO CYCLE ENGINE 失效
公开(公告)号：JPH09280053A
公开(公告)日：1997-10-28
申请号：JP9445296
申请日：1996-04-16
申请人： KIORITZ CORP
发明人： SAKAGUCHI MASAO , NAGAI NOBORU , SATO SHIGERU , SATO YASUHARU
IPC分类号： F02P13/00 , F02B23/08 , F02B25/14 , F02B63/02 , F02B75/02 , F02F1/00 , F02F1/22 , F02F3/00
摘要： PROBLEM TO BE SOLVED: To reduce THC component effectively without incurring the reduction of output characteristics and causing large structural change. SOLUTION: In a two cycle engine of schniile scavenging type which is provided with a combustion chamber 5 of squish dome type, the combustion chamber 5 is formed by a semi-spherical main face 5a and a ringlike squish band 5b which is continuous in its lower part, an ignition point SP of an ignition plug 15 is positioned in a central part of the combustion chamber 5, and band width α of the squish band 5b is reduced as much as possible.

3. 发明专利

JP2008261296A Air cleaner for two-cycle internal combustion engine 有权
标题翻译：双循环内燃机用空气净化器
公开(公告)号：JP2008261296A
公开(公告)日：2008-10-30
申请号：JP2007105554
申请日：2007-04-13
申请人： Kioritz Corp , 株式会社共立
发明人： TSUNODA HIDEKAZU , SATO SHIGERU , KAWAMURA KUNIMUNE , TSUTSUI KAZUHIRO
IPC分类号： F02M35/10 , F02B25/22 , F02M35/024
CPC分类号： Y02T10/146
摘要： PROBLEM TO BE SOLVED: To reduce noxious material contained in exhaust gas discharged from a two-cycle engine.
SOLUTION: This air cleaner includes an air cleaner base 60 provided with a first air intake port 70 communicating to an air fuel mixture passage 54b of a carburetor 54 and a second air intake port 72 communicating to a fresh air passage 54a of the carburetor 54. An air guide member 76 is detachably and detachably provided at the first air intake port 70. The air guide member 76 includes a tip part 76b bent from a base end part 76a by roughly 90° and extending in a lateral direction. The tip part 76a is separated from the second air intake port 72 and is positioned in an area above the same.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：减少从二冲程发动机排出的废气中含有的有害物质。解决方案：该空气滤清器包括空气滤清器基座60，空气滤清器基座60设置有与化油器54的空气燃料混合物通道54b连通的第一进气口70和与第一空气通道54a连通的第二进气口72 化油器54.空气引导构件76可拆卸地设置在第一进气口70处。空气引导构件76包括从基端部分76a弯曲大约90°并沿横向方向延伸的尖端部分76b。顶端部分76a与第二进气口72分离并位于其上方的区域。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2008111339A Two-cycle internal combustion engine 有权
标题翻译：双循环内燃机
公开(公告)号：JP2008111339A
公开(公告)日：2008-05-15
申请号：JP2006293221
申请日：2006-10-27
申请人： Kioritz Corp , 株式会社共立
发明人： MOCHIZUKA MITSUJIRO , MATSUO KENTARO , YAMAZAKI TAKAHIRO , SATO SHIGERU
IPC分类号： F02B25/16
CPC分类号： F02B25/14 , F02B2075/025
摘要： PROBLEM TO BE SOLVED: To provide a two-cycle internal combustion engine capable of reducing a toxic substance included in exhaust gas. SOLUTION: A cylinder bore 4 is provided with a proximal first scavenging port 12 and a distal second scavenging port 13 in an exhaust port 11. In a scavenging stroke, the second scavenging port 13 opens earlier than the first scavenging port 12, and air A including no fuel is introduced to a combustion chamber 6 from the second scavenging port 13. Next, the first scavenging port 12 is opened, and an air-fuel mixture M precompressd by a crankcase 8 is introduced to the combustion chamber 6. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够减少废气中所含有毒物质的双循环内燃机。解决方案：气缸孔4在排气口11中设置有近端第一清除口12和远端第二扫气口13.在扫气行程中，第二扫气口13比第一扫气口12早开，并且将不包含燃料的空气A从第二扫气口13引入燃烧室6.接下来，打开第一扫气口12，将由曲轴箱8压缩的空气 - 燃料混合物M引入燃烧室6。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JPH09273416A MUFFLER FOR TWO-CYCLE ENGINE 失效
公开(公告)号：JPH09273416A
公开(公告)日：1997-10-21
申请号：JP8426096
申请日：1996-04-05
申请人： KIORITZ CORP
发明人： SAKAGUCHI MASAO , NAGAI NOBORU , SATO SHIGERU , SATO YASUHARU
IPC分类号： F01N1/02 , F01N3/20 , F01N3/28 , F01N13/08 , F01N13/18 , F01N7/08 , F01N7/18
摘要： PROBLEM TO BE SOLVED: To improve exhaust gas purifying performance, to improve an installing property to an engine, an assembling property, and a degree of designing freedom in a muffler, and to minimize or eliminate problems due to temperature increase because of a reaction between exhaust gas and an oxidation catalyst. SOLUTION: In a muffler 20 for a two-cycle engine provided with an expansion chamber to which exhaust gas jetted from an exhaust port 10 in an engine 10 is introduced, the expansion chamber is divided vertically into a first expansion chamber 31 and a second expansion chamber 32 by means of a partition plate 40, while an exhaust gas purifying member 50 is arranged in the partition plate 40, and the exhaust gas is led from the first expansion chamber 31 to the second expansion chamber 32 via the inside of the exhaust gas purifying member 50.

6. 发明专利

JPH08309891A CASE MANUFACTURE MACHINE 失效
公开(公告)号：JPH08309891A
公开(公告)日：1996-11-26
申请号：JP12125895
申请日：1995-05-19
申请人： KIORITZ CORP
发明人： KOCHA MASAHARU , SATO SHIGERU
IPC分类号： B65B43/26 , B31B5/00
摘要： PURPOSE: To prevent the damage and fluctuations of a forced feeder and to prevent a case material from inclining at the rear surface at pressing by rockably providing a push contact piece brought into contact with the rear surface as seen in the pressing direction of the material to form a forced feeder and a link member for supporting the piece at the base ends as a pivotal shaft. CONSTITUTION: A forced feeder 30 has a push contact piece 31 brought into contact with the rear surface of a case material 1 as seen in the pressing direction and rockably coupled at its base end 31a to the support protrusion 32b of a hook holder 32 via a coupling pin 33. Further, a working hook 42 is rockably coupled at the end to a bracket 39 provided near the end of the piece 31 via a pin 46, and a link member 40 is rockably coupled with a hook holder 44 at the base end to a chain attachment 26 disposed at the site of the rear of three chain elements 23a from the piece 31 as seen from the moving direction of a drive chain 23.

7. 发明专利

JP2008232025A Engine reed valve mounting structure 审中-公开
标题翻译：发动机阀门安装结构
公开(公告)号：JP2008232025A
公开(公告)日：2008-10-02
申请号：JP2007072946
申请日：2007-03-20
申请人： Kioritz Corp , 株式会社共立
发明人： SATO SHIGERU
IPC分类号： F02B25/20 , F02B25/16 , F02B25/22
CPC分类号： Y02T10/146
摘要： PROBLEM TO BE SOLVED: To provide a reed valve mounting structure of a stratified scavenging engine capable of reducing the distance from the central line of the engine to a magneto rotor, improving balance of the engine, reducing vibration and noise, preventing a machine screw for mounting a reed valve from becoming loose, and tightening the machine screw additionally to improve a maintenance property of this mounting structure.
SOLUTION: This engine reed valve mounting structure is provided with an exterior body 30 for introducing air attached to the outer periphery of a scavenging passage 15 part, a valve guide 40 having an inclined face part 40b for receiving a basic face part 40a and a swinging piece part 25c of the reed valve 25 and made of sheet metal, a stepped nut member 45 composed of a small diameter part 46 and a large diameter part 47, and a flat countersunk head screw 50 screwed into a threaded hole 48 in the nut member 45. A patelliform recessed part 33a in which a head part 51 of the flat countersunk head screw 50 is buried is formed in an external end part of a screw hole 33, and a fitting hole part 33c in which the small diameter part 46 of the nut member 45 is fitted is formed in an internal end part of the screw hole 33.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够减少从发动机的中心线到磁转子的距离的分层扫气发动机的簧片阀安装结构，改善发动机的平衡，减少振动和噪音，防止用于安装簧片阀松动的机器螺丝，以及另外拧紧机器螺丝以改善该安装结构的维护性能。解决方案：该发动机簧片阀安装结构设置有用于引入附着在扫气通道15部分的外周的空气的外部主体30，具有倾斜面部分40b的阀引导件40，用于接纳基面部分40a 和簧片阀25的摆动件25c，由金属板制成，由小直径部分46和大直径部分47组成的阶梯螺母件45以及拧入螺纹孔48中的平坦沉头螺钉50 螺母构件45.在螺钉孔33的外端部形成有埋设平坦的埋头螺钉50的头部51的髌骨状凹部33a，以及嵌合孔部33c，其中小直径部螺母构件45的46形成在螺钉孔33的内端部。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JPH11294158A MUFFLER OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH11294158A
公开(公告)日：1999-10-26
申请号：JP9972198
申请日：1998-04-10
申请人： KIORITZ CORP
发明人： SAKAGUCHI MASAO , SATO SHIGERU
IPC分类号： F01N1/08 , F01N3/02 , F01N13/20 , F01P1/06 , F02B63/00 , F01N7/20
摘要： PROBLEM TO BE SOLVED: To provide a muffler of an internal combustion engine which can effectively lower temperature of exhaust gas discharged from a final discharge port or surface temperature of the muffler. SOLUTION: This muffler of an internal combustion engine has expansion chambers to which exhaust gas injected from an exhaust port of the internal combustion engine is introduced, and a discharge port 71 for discharging the exhaust gas inside the expansion chambers to the outside. A venturi pipe 65 in which an external air introduction port 66 is formed on a throat part 65a is attached to a portion in the vicinity of the discharge port 71, so as to form an external air introduction gap 85 in between the discharge port 71 for mixing the external air with the exhaust gas discharged from the discharge port 71, by the use of injection flow of the exhaust gas.

9. 发明专利

JPH108942A MUFFLER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH108942A
公开(公告)日：1998-01-13
申请号：JP16168696
申请日：1996-06-21
申请人： KIORITZ CORP
发明人： SAKAGUCHI MASAO , SATO SHIGERU , KUBO KENGO
IPC分类号： F01N3/02 , F01N1/08 , F01N1/14 , F01N3/06 , F01N3/24 , F01N3/28 , F01N3/34 , F02B75/02
摘要： PROBLEM TO BE SOLVED: To surely prevent the blowoff of a spark, by forming a blowoff port, for leading an exhaust gas in an expansion chamber to a gap space, on an inner wall panel out of a double wall part forming the outer peripheral part of the expansion chamber; and also an exhaust opening, for discharging the exhaust gas outside from the gap space, on an outer wall panel. SOLUTION: An exhaust gas blown off from an exhaust port 10 is, at least, blown through inside/outside a venturi tube 25, and is introduced into a first expansion chamber 31 at a speed near to a sound speed, to be expandedly diffused to attenuate an exhaust sound, after that, is led into a second expansion chamber 32 via the inside of a catalytic oxidation 50 partitioned by a partitioning plate 40. Outside air is sucked from an outside air introducing pipe 26 by negative pressure, generated when the exhaust gas blows through the venturi tube 25, and is supplied, together with the exhaust gas, into the expansion chamber 31, to promote the oxidizing action of CO. The exhaust gas is blowen off to the second gap space Sb of a double wall part 32A from respective blowoff ports 61, 62, and 64, to be cooled during flowing the gap space Sb to extinguish a spark, and then is led into an exhaust port 37A.

10. 发明专利

JPH09280057A TWO CYCLE ENGINE 失效
公开(公告)号：JPH09280057A
公开(公告)日：1997-10-28
申请号：JP9445196
申请日：1996-04-16
申请人： KIORITZ CORP
发明人： SAKAGUCHI MASAO , NAGAI NOBORU , SATO SHIGERU , SATO YASUHARU
IPC分类号： F02B25/14 , F02B25/16 , F02B29/08 , F02B75/02
摘要： PROBLEM TO BE SOLVED: To increase output without being accompanied with large structural change and reduce total HC components exhaust gas in a Schnuerle scavenging type two cycle engine by setting opening timing of an exhaust port and scavenging ports by the piston to be late to the utmost. SOLUTION: In a Schnuerle scavenging type internal combustion engine 1 used for the power source of a bush cutter or the like, a suction port 7 connected to a carburetor and an exhaust port 10 are provided on a cylinder 2 opposite to each other with step difference, and a pair of scavenging ports 9 are symmetrically provided so as to put a vertical section dividing the exhaust port 10 and the suction port 7 into two parts between. In this case, the opening/ closing timings of the exhaust port 10 and the scavenging ports 9 by the piston 4 are respectively set to be smaller than 130 degrees and 100 degrees in crank angle putting the bottom dead center between. Such setting of the opening/ closing timings is attained by lowering the upper end positions 10a, 9a of the exhaust port 10 and the scavenging port 9 and shortening the separated distance between the upper end positions 10a, 9a.

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