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公开(公告)号：US4738233A
公开(公告)日：1988-04-19
申请号：US832409
申请日：1986-02-24
申请人： Mitsuo Hitomi , Syunki Okazaki , Koji Onishi , Junso Sasaki , Kazunori Tominaga
发明人： Mitsuo Hitomi , Syunki Okazaki , Koji Onishi , Junso Sasaki , Kazunori Tominaga
CPC分类号： F02B29/083 , F02B27/0221 , F02B27/0294 , Y02T10/146
摘要： An engine intake system including an intake passage opening to the combustion chamber through an intake port having an intake valve. A control valve is provided in the intake valve for cyclically opening the intake passage. Upstream the control valve, the intake passage is provided with a tank which functions to reverse the negative pressure propagated from the control valve into a positive pressure which is then transmitted to the combustion chamber to increase the intake charge. A timing control mechanism is provided for retarding the opening timing of the control valve in a low speed, high load engine operation.
摘要翻译： 一种发动机进气系统，包括通过具有进气门的进气口向燃烧室开口的进气通道。 控制阀设置在进气门中，用于循环地打开进气通道。 上游控制阀时，进气通道设有一个罐，其功能是将从控制阀传播的负压反转成正压，然后传送到燃烧室以增加进气量。 提供了一种定时控制机构，用于在低速高负荷发动机运转中延迟控制阀的打开正时。
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公开(公告)号：US4590895A
公开(公告)日：1986-05-27
申请号：US591458
申请日：1984-03-20
申请人： Yoshikuni Yada , Syunki Okazaki
发明人： Yoshikuni Yada , Syunki Okazaki
CPC分类号： F02B27/0257 , F02B27/0215 , F02B27/0263 , F02B27/0294 , F02B2075/1816 , Y02T10/146
摘要： A part of intake passages is made into an arcuate form extending around a surge tank. A rotatable drum is provided in the surge tank to change the length of the arcuate part of the passages. The rotatable drum is controlled by a control mechanism which is operated in accordance with the engine speed for example, so that the effective length of the intake passages may be changed to keep synchronization between the natural frequency of the intake system and the frequency of the pressure wave caused by the reciprocal motion of the piston of the engine.
摘要翻译： 进气通道的一部分被制成围绕缓冲罐延伸的弓形。 一个可旋转的滚筒设置在缓冲罐中以改变通道弧形部分的长度。 可旋转滚筒由例如根据发动机转速进行操作的控制机构控制，使得可以改变进气通道的有效长度以保持进气系统的固有频率与压力频率之间的同步 由发动机的活塞的往复运动引起的波。
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