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1. 发明授权

US4517134A Variable venturi carburetor 失效
标题翻译：可变文丘里化油器
公开(公告)号：US4517134A
公开(公告)日：1985-05-14
申请号：US560973
申请日：1983-12-13
申请人： Ken Nakamura , Tadashi Nagai , Giichi Shioyama , Yutaka Matayoshi , Eiichi Ohnishi , Junichi Yokoyama , Atsushi Yonezawa
发明人： Ken Nakamura , Tadashi Nagai , Giichi Shioyama , Yutaka Matayoshi , Eiichi Ohnishi , Junichi Yokoyama , Atsushi Yonezawa
IPC分类号： F02M7/133 , F02M7/17 , F02M9/06
CPC分类号： F02M7/133 , F02M7/17 , Y10S261/74
摘要： In a variable venturi carburetor in which the metering jet portion of fuel changes automatically according to the amount of intake air required to keep the mixture at a constant air-to-fuel ratio at all times, two series-arranged nozzles and an auxiliary fuel passage communicating with the downstream side of the venturi and with the space formed between the two nozzles additionally formed at the fixed venturi portion in such a way that the auxiliary fuel passage can be opened or closed according to engine operating conditions. Therefore, when the auxiliary fuel passage is opened, since fuel is introduced into the venturi through only a single nozzle, a rich mixture is obtained; when the auxiliary fuel passage is closed, since fuel is introduced through two nozzles, a lean mixture is obtained.
摘要翻译：在可变文丘里化油器中，其中燃料的计量喷射部分根据随时将混合物保持在恒定空燃比所需的进气量自动改变，两个串联排列的喷嘴和辅助燃料通道与文丘里管的下游侧连通，并且在另外形成在固定文丘里管部分处的两个喷嘴之间形成的空间，使得辅助燃料通道可以根据发动机操作条件打开或关闭。因此，当辅助燃料通道打开时，由于燃料仅通过单个喷嘴引入文丘里管，所以获得了丰富的混合物; 当辅助燃料通道关闭时，由于通过两个喷嘴引入燃料，因此获得贫混合物。

2. 发明授权

US4489014A Variable venturi carburetor 失效
标题翻译：可变文丘里化油器
公开(公告)号：US4489014A
公开(公告)日：1984-12-18
申请号：US540627
申请日：1983-10-11
申请人： Tadashi Nagai , Eiichi Ohnishi , Giichi Shioyama , Yutaka Matayoshi
发明人： Tadashi Nagai , Eiichi Ohnishi , Giichi Shioyama , Yutaka Matayoshi
IPC分类号： F02M7/17 , F02M9/06
CPC分类号： F02M7/17
摘要： In a prior-art variable venturi carburetor in which the cross-sectional area of venturi is automatically varied according to the amount of intake air to keep the flow rate of intake air or the vacuum generated at the venturi at a constant level, since the cross section of venturi changes rectangularly, fuel is concentratedly jetted only near the middle portion of the venturi, so that fuel is not uniformly mixed with air passing through the venturi. To overcome these drawbacks, a wall having a reverse trapezoidal recess is provided near the nozzle and further a pair of triangular slots or cutouts are formed near the lower end surface of the suction piston obliquely and symmetrically so as to slidably engage with the wall, with the result that the cross section of the venturi changes trapezoidally and therefore a stable mixture is obtained even when the engine is running at a low speed or being idled.
摘要翻译：在现有技术的可变文丘里化油器中，文丘里管的横截面积根据进气量而自动变化，以将进气的流量或文丘里管上产生的真空保持在恒定水平，因为十字文氏管的一部分长方形变化，燃料集中喷射在文丘里管的中部附近，使得燃料与通过文丘里管的空气不均匀混合。为了克服这些缺点，在喷嘴附近设置具有倒梯形凹部的壁，并且在抽吸活塞的下端面附近形成一对三角形槽或切口，倾斜和对称地形成为与壁壁可滑动地接合，即使在发动机以低速行驶或空转的情况下，文丘里管的横截面也能够梯形变化，因此得到稳定的混合物。

3. 发明授权

US4699110A Fuel supply system 失效
标题翻译：燃油供应系统
公开(公告)号：US4699110A
公开(公告)日：1987-10-13
申请号：US854411
申请日：1986-04-21
申请人： Hiroshi Iwano , Tadahiro Yamamoto , Tadaki Ota , Hiroshi Ogane , Eiichi Ohnishi , Atsushi Yonezawa
发明人： Hiroshi Iwano , Tadahiro Yamamoto , Tadaki Ota , Hiroshi Ogane , Eiichi Ohnishi , Atsushi Yonezawa
IPC分类号： F02M11/02 , F02M13/04 , F02M69/04 , F02M69/08 , F02M51/00
CPC分类号： F02M69/08 , F02M11/02 , F02M13/046 , F02M69/041
摘要： A primary passage and a secondary passage in a parallel relation to each other are disposed between an air cleaner and a branch passage collecting portion of an intake manifold. The primary passage is smaller in diameter than the secondary passage and has at the downstream end thereof a laval nozzle through which air flows at the speed of sound even under low-speed low-load engine operating conditions. The laval nozzle is connected to a carburetion chamber which is elongated straightly in the direction downstream of the laval nozzle. A fuel injection valve is disposed in the primary passage at a place upstream of the laval nozzle. A pressure control valve is adapted so that a vacuum higher than a predetermined value is developed in the carburetion chamber at any time. A primary throttle valve and a secondary throttle valve are interconnected so that the secondary throttle valve is held closed unless the primary throttle valve is fully open. The primary throttle valve is movable in response to an engine operating condition.
摘要翻译：在空气滤清器和进气歧管的分支通道收集部分之间设置有彼此平行关系的主通道和次通道。主通道的直径比二次通道的直径小，并且在其下游端有一个拉链喷嘴，即使在低速低负载发动机运行条件下，空气以声速流过。喷泉喷嘴连接到在油槽喷嘴的下游方向上直线延伸的化油室。燃料喷射阀设置在主通道中，在喷嘴喷嘴的上游位置。压力控制阀适于在任何时候在化油室中产生高于预定值的真空。主节流阀和辅助节流阀相互连接，使得次级节流阀保持关闭，除非主节流阀完全打开。主节流阀可响应于发动机工作状态而运动。

4. 发明授权

US4294220A Intake port means for extracting engine exhaust gas for recirculation 失效
标题翻译：进气端口用于提取用于再循环的发动机废气
公开(公告)号：US4294220A
公开(公告)日：1981-10-13
申请号：US111555
申请日：1980-01-14
申请人： Seishi Yasuhara , Eiichi Ohnishi
发明人： Seishi Yasuhara , Eiichi Ohnishi
IPC分类号： F01N13/08 , F02B1/04 , F02M25/07 , F02M25/06
CPC分类号： F02M26/15 , F02B1/04 , F02M26/50
摘要： An intake port means for extracting engine exhaust gas for recirculation having an extracting aperture placed in a stream of the engine exhaust gas and a cover having its closed end lying on the upstream side of said aperture while having its open end facing the downstream side from said aperture, so that the engine exhaust gas is extracted through trailing portion of the open end of the cover.
摘要翻译：一种用于提取用于再循环的发动机废气的进气口装置，其具有放置在发动机废气流中的提取孔，以及其封闭端位于所述孔的上游侧的盖，同时其开口端面向所述孔，使得发动机废气通过盖的开口端的尾部提取。

5. 发明授权

US4751907A Air/fuel ratio detecting apparatus for internal combustion engines 失效
标题翻译：用于内燃机的空燃比检测装置
公开(公告)号：US4751907A
公开(公告)日：1988-06-21
申请号：US906949
申请日：1986-09-15
申请人： Tadahiro Yamamoto , Eiichi Ohnishi , Tadaki Oota , Hiroaki Oogane , Minoru Osuga , Yoshishige Oyama
发明人： Tadahiro Yamamoto , Eiichi Ohnishi , Tadaki Oota , Hiroaki Oogane , Minoru Osuga , Yoshishige Oyama
IPC分类号： F02D35/00 , F02D41/14 , G01N27/406 , G01N31/22
CPC分类号： G01N27/4065 , F02D35/003 , F02D41/2441 , F02D41/2474 , F02D41/2454
摘要： In an A/F ratio sensor of mixture supplied for an internal combustion engine, which has a detector for detecting the concentration of residual oxygen in exhaust gas and determines the A/F ratio by retrieving an air excess ratio table with an output of the detector, there is further provided an additional air introducing device, which introduces a predetermined quantity of air into the engine for a certain period of time, under the condition that the velocity of air flowing through a throttle valve is equal to the sonic velocity. The oxygen concentration detector is calibrated by the comparison of the outputs thereof before and after introduction of the additional air. According to this invention, the A/F ratio of the mixture can be detected accurately without the influence of the aged deterioration of the oxygen concentration.
摘要翻译：在供给用于内燃机的混合物的A / F比传感器中，其具有用于检测废气中的残余氧浓度的检测器，并且通过用检测器的输出检索空气过剩率表来确定A / F比进一步提供了一种额外的空气引入装置，其在流过节流阀的空气的速度等于声速的条件下，将预定量的空气引入发动机中一段时间。通过在引入附加空气之前和之后的输出的比较来校准氧浓度检测器。根据本发明，可以准确地检测混合物的A / F比，而不会受到氧浓度老化的影响。

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