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1. 发明授权

US4138971A Crankchamber precompression type two-cycle internal combustion engines 失效
标题翻译： Crankchamber预压式双循环内燃机
公开(公告)号：US4138971A
公开(公告)日：1979-02-13
申请号：US736141
申请日：1976-10-27
申请人： Tetsuzo Fujikawa , Toshiyuki Takada
发明人： Tetsuzo Fujikawa , Toshiyuki Takada
IPC分类号： F02B75/18 , F02B29/06 , F02B33/06 , F02B33/14 , F02B75/02 , F02B75/20
CPC分类号： F02B29/06 , F02B33/06 , F02B75/20 , F02B2075/025 , Y02T10/146
摘要： Twin cylinder two cycle engine including a pair of stepped cylinders and a pair of stepped pistons slidable in said cylinders defining annular spaces of variable volume in said cylinders. The pistons are interconnected each other with 180.degree. phase difference. Air-fuel mixture introduced into the annular space in one cylinder is forced into the crankchamber of the other cylinder during the upward stroke of the associated piston, so that an additional charge is provided.
摘要翻译：双缸二冲程发动机包括一对阶梯式气缸和一对可在所述气缸中滑动的阶梯式活塞，在所述气缸中限定可变容积的环形空间。活塞以180°的相位相互连接。引入一个气缸的环形空间的空气 - 燃料混合物在相关活塞的向上冲程期间被迫进入另一个气缸的曲柄室，从而提供额外的电荷。

2. 发明授权

US4287860A Two-cycle engine 失效
标题翻译：双循环发动机
公开(公告)号：US4287860A
公开(公告)日：1981-09-08
申请号：US133373
申请日：1980-03-24
申请人： Tetsuzo Fujikawa , Toshiyuki Takada , Kichiji Misawa
发明人： Tetsuzo Fujikawa , Toshiyuki Takada , Kichiji Misawa
IPC分类号： F02B25/14 , F02B25/16 , F02B29/06 , F02B33/04 , F02B33/44 , F02B75/02 , F02F1/22
CPC分类号： F02B33/44 , F02B25/14 , F02B33/04 , F02F1/22 , F02B2075/025
摘要： A two-cycle engine of the crank chamber preloading type of the construction in which a crankcase, a cylinder head and a cylinder are clamped together by a plurality of clamping members penetrating the cylinder includes a suction port formed in a wall of the cylinder, an exhaust port formed on a side of the cylinder opposite the suction port, at least one main scavenging port disposed between the suction port and the exhaust port and directed toward the suction port, and at least one ancillary scavenging port disposed above the suction port and juxtaposed against the exhaust port. At least one ancillary scavenging passage branching from at least one main scavenging passage and communicating with the ancillary scavenging port extends around an opening for one of clamping members on the suction side.
摘要翻译：曲轴室预加载型的双循环发动机，其中曲轴箱，气缸盖和气缸通过穿过气缸的多个夹紧构件夹紧在一起，包括形成在气缸的壁中的吸入口，排气口形成在与抽吸口相对的一侧上，至少一个主清扫口，设置在吸入口和排气口之间并且指向吸入口;以及至少一个辅助清除口，设置在吸入口上方并且并置对着排气口。至少一个辅助清除通道从至少一个主清扫通道分支并与辅助扫气口连通，围绕吸入侧的一个夹紧件的开口延伸。

3. 发明授权

US4736717A Valve gear for four-cycle engine 失效
标题翻译：四冲程发动机的阀门齿轮
公开(公告)号：US4736717A
公开(公告)日：1988-04-12
申请号：US848206
申请日：1986-04-04
申请人： Tetsuzo Fujikawa , Toshiyuki Takada , Shinichi Tamba
发明人： Tetsuzo Fujikawa , Toshiyuki Takada , Shinichi Tamba
IPC分类号： F01L1/02 , F01L1/06 , F01L13/08 , F02B75/02 , F02F7/00 , F01L1/04
CPC分类号： F01L13/08 , F01L1/02 , F01L1/06 , F02B2075/027 , F02B2275/22 , F02F7/006
摘要： A valve gear for a four-cycle engine having an overhung crankshaft connecting with an output shaft, wherein a guide portion having such a shape folding the output shaft as to return back to a starting point in two turns, is formed on the output shaft, and an interlocking mechanism guided by the guide portion is provided to open the valves for the four-cycle engine. It is preferable that the guide portion is formed as cam face displacing the interlocking mechanism. The guide portion can be formed on a block other than the output shaft for easy machining and also for adjustable valve timing.
摘要翻译：一种用于具有与输出轴连接的悬臂曲轴的四冲程发动机的阀齿轮，其特征在于，在所述输出轴上形成有将所述输出轴折叠成回转到起始点的形状的引导部，并且由引导部引导的互锁机构被设置为打开用于四冲程发动机的阀。优选地，引导部形成为使互锁机构移位的凸轮面。引导部分可以形成在除输出轴之外的块上，以便于机械加工以及可调节阀门定时。

4. 发明授权

US4478180A Crankchamber precompression type two-cycle internal combustion engine 失效
标题翻译： Crankchamber预压式双循环内燃机
公开(公告)号：US4478180A
公开(公告)日：1984-10-23
申请号：US466780
申请日：1983-02-16
申请人： Tetsuzo Fujikawa , Toshiyuki Takada
发明人： Tetsuzo Fujikawa , Toshiyuki Takada
IPC分类号： F02B25/16 , F02B25/26 , F02B29/06 , F02B33/04 , F02B33/06 , F02B33/14 , F02B75/02
CPC分类号： F02B33/04 , F02B33/06 , F02B33/14 , F02B2075/025
摘要： A crankchamber precompression type two-cycle internal combustion engine including cylinder assemblies of an even number consists of at least one pair of cylinder assemblies having working cycles with 180.degree. phase difference, each cylinder assembly having a stepped cylinder constituted by a minor diameter cylinder portion and a major diameter cylinder portion, a stepped piston received in the stepped cylinder and constituted by a minor diameter piston portion and a major diameter piston portion, the minor diameter and major diameter piston portions being in sliding engagement with the minor diameter and the major diameter cylinder portions of the stepped cylinder respectively to provide an annular space serving as sub-intake chamber in the major diameter portions of the cylinders, the sub-intake chambers being connected to an auxiliary scavenging nozzle oriented toward a combustion chamber of the other associated cylinder. The sub-intake chambers are connected to auxiliary carburetors set beforehand in such a manner that they form a mixture of fuel of high quality and air, and crankchambers of the cylinders are connected to main carburetors set beforehand in such a manner that they form a mixture of fuel of low quality and air. By this arrangement, the mixture of fuel of high quality and air is first ignited in the combustion chambers to produce flame surfaces in a large area to enable complete combustion of the mixture of fuel of low quality with air to be achieved.
摘要翻译：包括偶数气缸组件的曲轴箱预压型双循环内燃机由具有180°相位差的工作循环的至少一对气缸组件组成，每个气缸组件具有由小直径气缸部分构成的阶梯气缸，主直径圆筒部分，阶梯式活塞，容纳在阶梯式气缸中，由小直径活塞部分和大直径活塞部分构成，小直径活塞部分与小直径圆柱体滑动接合，所述阶梯式气缸的部分分别在所述气缸的大直径部分中提供用作副进气室的环形空间，所述副进气室连接到朝向所述另一相关气缸的燃烧室的辅助扫气喷嘴。副进气室以预先设置的辅助化油器连接，使得它们形成高品质的燃料和空气的混合物，并且气缸的曲柄室以预先设置的方式连接到主要化油器，使得它们形成混合物的低质量和空气的燃料。通过这种布置，高质量燃料和空气的混合物首先在燃烧室中被点燃以在大面积上产生火焰表面，以使低品质燃料混合物与待实现的空气完全燃烧。

5. 发明授权

US4328769A Cooling system of liquid-cooled multicylinder engine 失效
标题翻译：液冷多缸发动机冷却系统
公开(公告)号：US4328769A
公开(公告)日：1982-05-11
申请号：US241304
申请日：1981-03-06
申请人： Tetsuzo Fujikawa , Toshiyuki Takada , Shinichi Tamba
发明人： Tetsuzo Fujikawa , Toshiyuki Takada , Shinichi Tamba
IPC分类号： F01P3/02 , F01P5/10 , F02B75/02
CPC分类号： F01P5/10 , F02B2075/025
摘要： A cooling system of a liquid-cooled multicylinder engine of the two cycle type, wherein a crank shaft is journalled by bearings housed in bearing housings of a small diameter mounting therein airtight seal members as well as the bearings and located at opposite end portions and an intermediate portion of a crank case consisting of upper and lower members, cylinders are arranged on the upper end surface of the upper crank case member, and each cylinder has a suction conduit attached to one side thereof and an exhaust conduit attached to the other side thereof, includes a centrifugal pump driven by the crank shaft for circulating a cooling liquid and located in a recess on the suction side of the crank case between cylinders, with the axis of the pump being parallel to the crank shaft. The centrifugal pump is formed at its lower end portion with a pump outlet extending substantially horizontally and connected to a suction side inlet of a liquid passage extending along the underside and the exhaust side of the bearing housing in the intermediate portion of the crank case, and a liquid jacket communicating with the liquid passage is mounted on the entire exhaust side portion of the upper crank case member and has an upper outlet connected to another liquid jacket in each of the cylinders at the interface between the crank case and the cylinders.
摘要翻译：一种两循环型液冷多缸发动机的冷却系统，其特征在于，曲轴通过安装在其中的小直径的轴承座中的轴承支承在其中，气密密封构件以及轴承并位于相对端部，由上下构件构成的曲轴箱的中间部分设置在上曲轴箱构件的上端表面上，并且每个气缸具有附接到其一侧的吸入管和附接到其另一侧的排气导管包括由曲轴驱动的用于使冷却液循环并位于气缸之间的曲轴箱的吸入侧的凹部中的离心泵，其中泵的轴线平行于曲轴。离心泵在其下端部形成有大致水平地延伸的泵出口，并连接到在曲轴箱的中间部分中沿着轴承壳体的下侧和排气侧延伸的液体通道的吸入侧入口，以及与液体通道连通的液体护套安装在上曲轴箱构件的整个排气侧部分上，并且在曲轴箱和气缸之间的界面处，在每个气缸中具有连接到另一个液套的上出口。

6. 发明授权

US4155414A Snow mobile including an improved air cleaner 失效
标题翻译：雪地手机包括改进的空气净化器
公开(公告)号：US4155414A
公开(公告)日：1979-05-22
申请号：US869350
申请日：1978-01-13
申请人： Tetsuzo Fujikawa , Toshiyuki Takada
发明人： Tetsuzo Fujikawa , Toshiyuki Takada
IPC分类号： B62M27/02 , F02M35/14 , F02M35/16 , B01D50/00
CPC分类号： B62M27/02 , B62M2027/023 , Y10S55/28
摘要： An air cleaner for an engine of a snow mobile provided with an endless vehicle track driven by the engine, includes an air cleaner main body comprising a duct extending longitudinally of the snow mobile and disposed on a floor covering of the endless vehicle track. The air cleaner main body is connected at its forward end to a carburetor for the engine and includes a rearward portion formed with a plurality of air inlet apertures. A riders' seat is mounted on the rear portion of the air cleaner main body and includes a shock-absorbing member for enclosing the air inlet apertures and an outer cover member for covering the shock-absorbing member. The shock-absorbing member serves concurrently as a cleaning element of the air cleaner, and at least one air intake port is formed in the outer cover of the seat at its rear end or one or both of its sides. The air cleaner main body is formed with an increased volume section which serves as a muffler for silencing engine intake noises.
摘要翻译：一种具有由发动机驱动的环形车辆轨道的雪地移动发动机的空气净化器，包括空气滤清器主体，该空气滤清器主体包括沿着雪移动体纵向延伸并设置在无端车辆轨道的地板覆盖物上的管道。空气滤清器主体在其前端连接到用于发动机的化油器，并且包括形成有多个空气入口孔的后部。座椅座位安装在空气滤清器主体的后部，并包括用于封闭空气入口孔的减震构件和用于覆盖减震构件的外盖构件。吸震构件同时用作空气净化器的清洁元件，并且至少一个进气口在其后端或其一侧或两侧形成在座椅的外盖中。空气滤清器主体形成有增大的体积部分，其用作消音器以消除发动机进气噪声。

7. 发明授权

US5119879A Edger with tubular main frame 失效
标题翻译：带管状主框的边缘
公开(公告)号：US5119879A
公开(公告)日：1992-06-09
申请号：US766526
申请日：1991-09-27
申请人： Tetsuzo Fujikawa , Makizo Hirata , Shigeharu Ohama
发明人： Tetsuzo Fujikawa , Makizo Hirata , Shigeharu Ohama
IPC分类号： A01B33/02 , A01B63/16 , A01B63/26
CPC分类号： A01B63/26 , A01B33/028 , A01B63/166 , A01D2034/6843 , Y10T74/20624
摘要： An edger having a main frame, at least one front wheel fastened in the front portion of the main frame, two rear wheels fastened in the rear portion of the main fame, a rotary blade disposed in the front portion of either side of the main frame and capable of conducting edging, an engine mounted on the main frame and a driving device for operating the rotary blade with the engine, the edger comprising: a supporting arm for supporting the rear wheel positioned opposite to the rotary blade in such a manner that the position of the rear wheel positioned opposite to the rotary blade can be vertically adjusted with respect to the main frame; and a positioning mechanism for positioning the vertical position of the rear wheel disposed between the main frame and the supporting arm.
摘要翻译：具有主框架的修边机，固定在主框架的前部的至少一个前轮，紧固在主要后部的后部的两个后轮，设置在主框架的任一侧的前部的旋转刀片并且能够进行边缘，安装在主框架上的发动机和用于与发动机一起操作旋转叶片的驱动装置，该修边机包括：支撑臂，用于支撑与旋转叶片相对定位的后轮，与旋转叶片相对的后轮的位置可以相对于主框架垂直调节; 以及用于定位设置在主框架和支撑臂之间的后轮的竖直位置的定位机构。

8. 发明授权

US4984417A Edger with belt braking device 失效
标题翻译：带皮带制动装置的磨边机
公开(公告)号：US4984417A
公开(公告)日：1991-01-15
申请号：US404914
申请日：1989-09-08
申请人： Stephen A. Braun , Michael J. O'Neill , Roger W. Curry , James R. Titze , Donald E. Niosi , Tetsuzo Fujikawa , Makizo Hirata , Michio Nishimura
发明人： Stephen A. Braun , Michael J. O'Neill , Roger W. Curry , James R. Titze , Donald E. Niosi , Tetsuzo Fujikawa , Makizo Hirata , Michio Nishimura
IPC分类号： A01D34/47 , A01D34/56 , A01D34/84
CPC分类号： A01D34/84
摘要： The present invention relates to an edger with a belt braking device, including a belt driving device and a cutter blade, which are arranged at the side of an edger vehicle. A bearing housing portion of the cutter blade is provided for forward and rearward movement, a belt cover for covering the whole driving belt is fixed to the edger vehicle, and a belt braking device is arranged between the front end of the belt cover and the front driven pulley, whereby performing ON-OFF operation of a clutch and engagement/ disengagement of a brake simultaneously is enabled. In this way, the fixed belt cover can be compact and the operation for changing of working conditions can be simplified.
摘要翻译：本发明涉及一种具有皮带制动装置的修边机，其包括带驱动装置和切割刀片，其布置在修边车辆的侧面。为了前后移动，设置有切割刀片的轴承壳体部，将整个传动带覆盖的皮带罩固定在磨边车辆上，皮带制动装置配置在皮带罩的前端与前部从而进行离合器的ON-OFF操作和同时的制动器的接合/分离。这样，固定皮带罩可以紧凑，并且可以简化改变工作条件的操作。

9. 发明授权

US4862981A Internal combustion engine and devices employing same 失效
标题翻译：内燃机及采用其的装置
公开(公告)号：US4862981A
公开(公告)日：1989-09-05
申请号：US71019
申请日：1987-07-08
申请人： Tetsuzo Fujikawa , Keisuke Tomonaga , Shinichi Tamba , Hitomi Miyake
发明人： Tetsuzo Fujikawa , Keisuke Tomonaga , Shinichi Tamba , Hitomi Miyake
IPC分类号： B60K5/10 , B60K11/00 , F01P3/18 , F02B1/04 , F02B75/00 , F02B75/02 , F02B75/22 , F02F7/00
CPC分类号： F02B75/007 , B60K11/00 , B60K5/10 , F01P3/18 , F02B1/04 , F02B2075/027 , F02B75/22 , F02F7/006 , Y10S180/90
摘要： An engine and power units employing the engine are provided which include a crankshaft oriented vertically and operatively connected to the engine, a liquid-cooled radiator arranged above the engine substantially perpendicular to the crankshaft, and a cooling fan interposed between the engine and the radiator and operatively connected to the crankshaft. The engines and power units may be employed in motor vehicles and other equipment such as electrical generators.
摘要翻译：提供了一种采用发动机的发动机和动力装置，其包括垂直和可操作地连接到发动机的曲轴，布置在发动机基本上垂直于曲轴的发动机上的液冷散热器，以及插入在发动机和散热器之间的冷却风扇，可操作地连接到曲轴。发动机和动力单元可以用于机动车辆和其他设备，例如发电机。

10. 发明授权

US4683847A Valve system for overhead valve type four-cycle engine 失效
标题翻译：顶置式四冲程发动机的阀门系统
公开(公告)号：US4683847A
公开(公告)日：1987-08-04
申请号：US811890
申请日：1985-12-20
申请人： Tetsuzo Fujikawa , Makizo Hirata , Shinichi Tamba
发明人： Tetsuzo Fujikawa , Makizo Hirata , Shinichi Tamba
IPC分类号： F01L1/04 , F01L1/06 , F01L1/10 , F01L1/12 , F02B75/02
CPC分类号： F01L1/06 , F02B2075/027
摘要： A valve system for the overhead valve type four-cycle engine disposing the intake and exhaust valves substantially symmetrically to each other with respect to the cylinder center line, wherein the valve stems are so tilted in the cylinder head that the valve bodies are in juxtaposition close to the cylinder center line. Guide cams are disposed around the circumferential surface of the crank shaft, respectively return back to the same starting point while making two turns, and respectively have one projection in the course of the turn, for driving the intake and exhaust valves. Between the guide cams and the respective intake and exhaust valve, a sliding piece, push rod and rocker arm are provided, and the projection on each of aforesaid cam is designed to be placed at such a position as to engage with the sliding piece to the opening timing of the intake and exhaust valves.
摘要翻译：一种用于顶置式四冲程发动机的阀门系统，其将进气门和排气门相对于气缸中心线彼此大致对称地布置，其中阀杆在气缸盖中倾斜，使阀体并列靠近到气缸中心线。引导凸轮围绕曲轴的圆周表面设置，分别在两匝回到相同的起始点，并且在转弯过程中分别具有一个突起，用于驱动进气门和排气门。在导向凸轮和相应的进气和排气阀之间设置有滑动件，推杆和摇臂，并且每个上述凸轮上的突起设计成被放置在与滑动件接合的位置上进气和排气阀的打开正时。

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