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1. 发明授权

US06205970B1 Engine balance shafts supporting structure 有权
标题翻译：发动机平衡轴支撑结构
公开(公告)号：US06205970B1
公开(公告)日：2001-03-27
申请号：US09372177
申请日：1999-08-11
申请人： Kazuyuki Iwata , Tomonori Niizato
发明人： Kazuyuki Iwata , Tomonori Niizato
IPC分类号： F02B7506
CPC分类号： F16F15/264 , F01M2001/0276 , F02B75/20 , F16F15/26
摘要： A casing accommodating therein a pair of balance shafts below the cylinder block comprises an upper casing and a lower casing that can vertically be split, and an oil pump body is molded integrally with one of the upper and lower casings. In addition, one end of each of the two casings is inserted into the oil pump body for support therein, and the two balance shafts are each supported on a bearing provided between the two casings in such a manner as to be split into two halves at an intermediate portion or the other end thereof. With this construction, the oil pump body can be molded together with the casing, thereby making it possible to reduce the number of components used and man hours for assembling. In addition, since the bearings can be split into two halves, when compared with other portions of the balance shafts, the journal portion can be thinned, thereby making it possible not only to reduce the sliding friction but also to make the casing smaller in size and lighter in weight. More over, the degree of freedom of designing balance shafts can also be improved. With the balance shaft supporting structure for an engine the durability of a balancer, as well as the degree of freedom of designing the same are improvided without making the engine larger in size and increasing the number of components used.
摘要翻译：容纳在气缸体下方的一对平衡轴的壳体包括可垂直分开的上壳体和下壳体，并且油泵主体与上壳体和下壳体中的一个一体地模制。此外，两个壳体中的每一个的一端插入油泵体中用于支撑在其中，并且两个平衡轴各自支撑在设置在两个壳体之间的轴承上，以便被分成两半中间部分或另一端。利用这种结构，可以将油泵体与壳体一起模制，从而可以减少所使用的部件的数量和组装时间。此外，由于轴承可以分成两半，与平衡轴的其他部分相比，轴颈部分可以变薄，从而不仅可以减小滑动摩擦，而且可以使套管的尺寸更小重量更轻。此外，还可以提高设计平衡轴的自由度。利用发动机的平衡轴支撑结构，平衡器的耐用性以及设计自由度得以改善，而不会使发动机的尺寸更大并且增加所使用的部件的数量。

2. 发明授权

US06189499B1 Balancing device for reciprocating engine 有权
标题翻译：往复式发动机的平衡装置
公开(公告)号：US06189499B1
公开(公告)日：2001-02-20
申请号：US09371786
申请日：1999-08-10
申请人： Kazuyuki Iwata , Tomonori Niizato
发明人： Kazuyuki Iwata , Tomonori Niizato
IPC分类号： F16F1526
CPC分类号： F16F15/265 , F01M2001/0276 , F16H2007/0812
摘要： A balancing device for a reciprocating engine is provided which is improved so as not to disturb the compactification of an engine. There is provided a balancing device for a reciprocating engine comprising two balance shafts 10L, 10R gear connected to each other, a chain/sprocket mechanism 9, 11, 12 for coupling at least one 10L of the balance shafts with a crankshaft 1 in an interlocking fashion, a chain tensioner 14 for automatically adjusting the tension of the chain 12 and a pump receiving portion 22 integrally provided in a balance shaft holder 16 for supporting the balance shafts for receiving a rotor 21B of a lubricating oil pump 21, the balancing device being characterized in that the rotor of the lubricating oil pump is directly connected to the other balance shaft 10R, and that the chain tensioner is disposed on an shaft end side of the other balance shaft. In accordance with the balancing device constructed as described above, the chain tensioner can be displaced within a range that does not project largely from a triangular contour formed by the two balance shafts and the crankshaft.
摘要翻译：提供了一种用于往复式发动机的平衡装置，其被改进以便不扰乱发动机的致密化。提供了一种用于往复式发动机的平衡装置，其包括彼此连接的两个平衡轴10L，10R齿轮，链轮/链轮机构9,11,12，用于将至少一个10L的平衡轴与曲轴1联接在一起用于自动调节链条12的张力的链条张紧器14和一体地设置在平衡轴保持器16中的泵接收部分22，用于支撑用于接收润滑油泵21的转子21B的平衡轴，平衡装置其特征在于，所述润滑油泵的转子与所述另一个平衡轴10R直接连接，所述链条张紧器设置在所述另一个平衡轴的轴端侧。根据如上所述构造的平衡装置，链条张紧器可以在不会从由两个平衡轴和曲轴形成的三角形轮廓的范围内移位。

3. 发明授权

US08220425B2 Valve operation control system for internal combustion engine 有权
标题翻译：内燃机阀门运行控制系统
公开(公告)号：US08220425B2
公开(公告)日：2012-07-17
申请号：US12670554
申请日：2008-08-12
申请人： Kazuhide Kumagai , Tomonori Niizato , Masataka Ikawa
发明人： Kazuhide Kumagai , Tomonori Niizato , Masataka Ikawa
IPC分类号： F01L9/02
CPC分类号： F01L1/267 , F01L1/181 , F01L1/20 , F01L1/22 , F01L13/0005 , F01L2001/028 , F01L2001/0535 , F01L2001/34426 , F01L2001/3443 , F01L2001/34433 , F01L2105/00 , F01L2800/08 , F01L2810/02 , F02F1/24 , F02F2007/0063 , Y10T137/86895
摘要： A valve operation control system for an internal combustion engine in which hydraulic pressure applied to a valve operation mode changing mechanism is controlled by hydraulic pressure control means that is formed from a holder mounted on a cylinder head, a spool valve formed by slidably housing a spool valve body in a valve body, and an electromagnetic open/close valve for controlling hydraulic pressure of a pilot hydraulic chamber, wherein the holder (109) is formed by integrally connecting a housed portion (109a) and a projecting portion (109b) by means of a connection portion (109c), the housed portion (109a) being housed between the cylinder head (22R) and a head cover, the projecting portion (109b) projecting outside the cylinder head (22R) and the head cover and having the electromagnetic open/close valve (113, 114) mounted thereon, a seal face (116) with the head cover is formed on the connection portion (109c), and the valve body (110) is provided so as to be connected to the housed portion (109a) while being housed between the head cover and the cylinder head (22R). This enables the sealing properties between the holder and the head cover to be enhanced.
摘要翻译：一种用于内燃机的阀操作控制系统，其中施加到阀操作模式改变机构的液压被由安装在气缸盖上的保持架形成的液压控制装置控制，滑阀由可滑动地容纳阀芯阀体中的阀体，以及用于控制先导液压室的液压的电磁开闭阀，其中，所述保持器（109）通过装置（109a）与突出部（109b）整体连接而形成的连接部分（109c），容纳部分（109a）容纳在气缸盖（22R）和头罩之间，突出部分（109b）突出到气缸盖（22R）外面并具有电磁头安装在其上的打开/关闭阀（113,114），在连接部分（109c）上形成有具有头罩的密封面（116），阀体（110）设置成与h （109a），同时容纳在头罩和气缸盖（22R）之间。这使得能够增强保持器和头罩之间的密封性能。

4. 发明申请

US20100186692A1 VALVE OPERATION CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：内燃机用阀门操作控制系统
公开(公告)号：US20100186692A1
公开(公告)日：2010-07-29
申请号：US12670554
申请日：2008-08-12
申请人： Kazuhide Kumagai , Tomonori Niizato , Masataka Ikawa
发明人： Kazuhide Kumagai , Tomonori Niizato , Masataka Ikawa
IPC分类号： F01L1/34
CPC分类号： F01L1/267 , F01L1/181 , F01L1/20 , F01L1/22 , F01L13/0005 , F01L2001/028 , F01L2001/0535 , F01L2001/34426 , F01L2001/3443 , F01L2001/34433 , F01L2105/00 , F01L2800/08 , F01L2810/02 , F02F1/24 , F02F2007/0063 , Y10T137/86895
摘要： A valve operation control system for an internal combustion engine in which hydraulic pressure applied to a valve operation mode changing mechanism is controlled by hydraulic pressure control means that is formed from a holder mounted on a cylinder head, a spool valve formed by slidably housing a spool valve body in a valve body, and an electromagnetic open/close valve for controlling hydraulic pressure of a pilot hydraulic chamber, wherein the holder (109) is formed by integrally connecting a housed portion (109a) and a projecting portion (109b) by means of a connection portion (109c), the housed portion (109a) being housed between the cylinder head (22R) and a head cover, the projecting portion (109b) projecting outside the cylinder head (22R) and the head cover and having the electromagnetic open/close valve (113, 114) mounted thereon, a seal face (116) with the head cover is formed on the connection portion (109c), and the valve body (110) is provided so as to be connected to the housed portion (109a) while being housed between the head cover and the cylinder head (22R). This enables the sealing properties between the holder and the head cover to be enhanced.
摘要翻译：一种用于内燃机的阀操作控制系统，其中施加到阀操作模式改变机构的液压被由安装在气缸盖上的保持架形成的液压控制装置控制，滑阀由可滑动地容纳阀芯阀体中的阀体，以及用于控制先导液压室的液压的电磁开闭阀，其中，所述保持器（109）通过装置（109a）与突出部（109b）整体连接而形成的连接部分（109c），容纳部分（109a）容纳在气缸盖（22R）和头罩之间，突出部分（109b）突出到气缸盖（22R）外面并具有电磁头安装在其上的打开/关闭阀（113,114），在连接部分（109c）上形成有具有头罩的密封面（116），阀体（110）设置成与h （109a），同时容纳在头罩和气缸盖（22R）之间。这使得能够增强保持器和头罩之间的密封性能。

5. 发明授权

US5007392A Cylinder head structure for multiple cylinder engines 失效
标题翻译：多缸发动机气缸盖结构
公开(公告)号：US5007392A
公开(公告)日：1991-04-16
申请号：US388259
申请日：1989-08-01
申请人： Tomonori Niizato , Katsumi Noguchi , Kiyoshi Tsukimura
发明人： Tomonori Niizato , Katsumi Noguchi , Kiyoshi Tsukimura
IPC分类号： F01L1/00 , F01L1/26 , F01L13/00 , F02B1/04 , F02B75/18 , F02F1/24 , F02F1/42
CPC分类号： F01L1/267 , F01L1/024 , F02F1/4214 , F02B1/04 , F02B2075/1816 , F02B2275/18 , F02F2001/247
摘要： A cylinder head structure for a multiple cylinder engine, comprising, at least for each of its cylinders (1) located at either longitudinal end of its cylinder bank: a combustion chamber (13) defined by the cylinder and a piston received therein; an intake passage (18) communicated with an intake manifold (20) at its one end and with said combustion chamber at its other end; and exhaust passage (19) communicated with an exhaust manifold (21) at its one end and with said combustion chamber at its other end; at least one of said intake passage and said exhaust passage being curved toward a longitudinally central part of said cylinder bank as it extends from its other end to its one end. Hence, the size and weight of the intake manifold and/or the exhaust manifold can be reduced. In particular, if the passage is communicated with the combustion chamber by a pair of ports (14a, 14b, 15a, 15b, 14a', 14b', 15a', 15b', 58Ea, 58Eb, 58 Ia, 58Ib, 114a', 114b', 115a', 115b') controlled by valves and arranged along a longitudinal direction of the cylinder bank and different flow rates are assigned to these ports depending the operating conditions of the engine, a significant improvement in the performance of the engine may be attained by symmetrically arranging these ports with respect to a longitudinal center of the cylinder bank.

6. 发明授权

US4928641A Lubricant supplying system for DOHC type multi-cylinder internal combustion engine 失效
标题翻译： DOHC型多缸内燃机润滑油供应系统
公开(公告)号：US4928641A
公开(公告)日：1990-05-29
申请号：US290313
申请日：1988-12-27
申请人： Tomonori Niizato , Tsuneo Tanai , Kazuhiro Kasahara , Tsutomu Saka , Toshihiro Oikawa
发明人： Tomonori Niizato , Tsuneo Tanai , Kazuhiro Kasahara , Tsutomu Saka , Toshihiro Oikawa
IPC分类号： F01L1/053 , F01L1/26 , F01L13/00 , F01M1/16 , F01M9/10
CPC分类号： F01L1/267 , F01L1/053 , F01L13/00 , F01M1/16 , F01M9/10 , F01M9/101 , F01M9/102 , F01M9/108 , F02B2275/18
摘要： A lubricant supplying system for a DOHC type multicylinder internal combustion engine comprising a plurality of cylinders arranged in series in a cylinder block, a pair of cam shafts parallel to each other and rotatably supported by a cylinder head and cam holders fixed to the cylinder head at opposite sides of the respective cylinders along the cylinder arranging direction, a plurality of cams including low speed cams corresponding to intake and exhaust valves of the respective cylinders and fixed to the cam shafts, a plurality of rocker arms in slidable contact with the respective cams corresponding to the intake and exhaust valves of the respective cylinders, and a connection switching mechanism for switching connection and disconnection of the rocker arms in response to a hydraulic pressure to vary the operating states of the valves responsive to the operating state of the engine, wherein a hydraulic pressure supply passage independent from an oil supply passage for supplying a hydraulic pressure to the connection switching mechanism is provided in the cylinder head substantially at its center portion along the cylinder arranging direction so as to extend vertically, and a branch oil passage is provided to have intake and exhaust side portions disposed in one cam holder of substantially center location along the cylinder arranging direction for communicating with the upper end of the hydraulic pressure supply passage to supply oil to the slidably contacting portions of low speed cams of the respectively cylinders at both intake and exhaust sides with the rocker arms and the cam journal portions of the cam shafts.

7. 发明授权

US5003937A Valve operating system for internal combustion engine 失效
标题翻译：内燃机阀门操作系统
公开(公告)号：US5003937A
公开(公告)日：1991-04-02
申请号：US388123
申请日：1989-08-01
申请人： Yukihiro Matsumoto , Kenji Yoshihara , Tetsuya Kajiura , Tomonori Niizato , Noriyuki Yamada
发明人： Yukihiro Matsumoto , Kenji Yoshihara , Tetsuya Kajiura , Tomonori Niizato , Noriyuki Yamada
IPC分类号： F01L1/053 , F01L1/26 , F01M1/16 , F01M9/10 , F02B1/04 , F02F1/24 , F02F1/42
CPC分类号： F01L1/267 , F01L1/053 , F01L1/26 , F01M1/16 , F01M9/10 , F01L2001/34436 , F01M9/101 , F01M9/102 , F01M9/108 , F02B1/04 , F02B2275/18 , F02F1/4214 , F02F2001/245
摘要： In a valve operating system for an internal combustion engine that includes a valve operation mode changing mechanism capable of changing at least one of either the lift amount of opening of an engine valve openably and closably carried in an engine body or the opening or closing timing in accordance with a variation in hydraulic pressure supplied to the changing mechanism. A selector valve is provided and includes a valve element slidably received in a housing attached to the engine body to change the supply of hydraulic pressure to the valve operation mode changing mechanism. The housing of the selector valve is provided with a working oil chamber which receives an oil pressure for driving, toward a position to supply a higher hydraulic pressure to the valve operation mode changing mechanism, a valve element biased toward a position to supply a lower hydraulic pressure to the valve operation mode changing mechanism. The working oil chamber is connected through a leak jet to a drain chamber provided in the engine body. The leak jet permits the hydraulic pressure to be quickly released from the working oil chamber when the valve element of the selector valve is driven to block the communication between the hydraulic pressure supply source and the valve operation mode changing mechanism, thereby leading to a quick changing operation of the valve operation mode changing mechanism.

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