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    • 2. 发明专利
    • Oil consumption reduction device for internal-combustion engine
    • 用于内燃机的消耗油消耗装置
    • JPS6116254A
    • 1986-01-24
    • JP13828084
    • 1984-07-04
    • Toyota Motor Corp
    • INOUE TAKASHI
    • F02M25/07
    • F02D21/08F02M26/53F02M26/55F02M26/59
    • PURPOSE:To prevent suction of oil due to pressure difference avoiding the increase of pressure difference between the suction air passage and the engine internal chamber when speed is reduced by interposing a valve which opens at the time of speed reduction in a communicating passage which communicates the exhaust passage with the suction passage existing downstream of a throttle valve. CONSTITUTION:An exhaust gas intake port 20 is provided on an exhaust manifold 19 connected to an exhaust port 9 of an engine proper 1. And the port 20 communicates with an exhaust gas injection port 25 provided on a suction manifold 15 via a conduit pipe 21, a throttle element 22, solenoid valve 23 and a conduit pipe 24. Further, when peed is reduced, a valve 23 is opened by a control unit 26 in response to each of signals from a idle switch 27 and a distributor 28. Thus, the expected purpose can be achieved by avoiding the occurrence of significant suction pipe negative pressure in the suction passage of the downstream side of a throttle valve 16 introducing a part of exhaust gas flowing in the exhaust manifold 19 into the suction manifold 15 via the communicating means 21-24 at the time of speed reduction.
    • 目的:为了防止由于压力差引起的油的吸入,避免了当通过在连通通道中的连通通道中插入在减速时打开的阀而降低吸入空气通道和发动机内部室之间的压力差时, 排气通道,其中吸入通道存在于节流阀的下游。 构成:排气歧管19设置在与发动机本体1的排气口9连接的排气歧管19上,并且,端口20经由导管21与设置在吸入歧管15上的排气注入口25连通 节流元件22,电磁阀23和导管24.此外,当减速时,响应于来自空转开关27和分配器28的每个信号,控制单元26打开阀23。因此, 可以通过避免在节流阀16的下游侧的吸入通道中产生显着的吸入管负压,从而将在排气歧管19中流动的排气的一部分经由连通装置 21-24在减速时。
    • 10. 发明专利
    • Exhaust gas reflux device for turbosupercharging engine
    • 用于涡轮发动机的排气回流装置
    • JP2005147010A
    • 2005-06-09
    • JP2003386524
    • 2003-11-17
    • Nissan Diesel Motor Co Ltd日産ディーゼル工業株式会社
    • NAKAMURA SHUICHIIMAOKA KENICHIRO
    • F02B37/00F02M25/07F02M35/10
    • F02M26/43F02M26/05F02M26/08F02M26/19F02M26/24F02M26/38F02M26/59
    • PROBLEM TO BE SOLVED: To provide an exhaust gas reflux device for a turbosupercharging engine capable of performing exhaust gas reflux securely even under high supercharging by a turbocharger. SOLUTION: An intake manifold of the turbosupercharging engine provided with the turbocharger is divided into a first intake manifold part and a second intake manifold part per cylinder in which suction strokes are not overlapped mutually. Ejectors are mounted at respective intake inlets. An exhaust manifold is divided into a first exhaust manifold part and a second exhaust manifold part per cylinder in which exhaust processes are not overlapped mutually by corresponding to the first and second intake manifold parts. Exhaust gas reflux passages provided with check valves, respectively, are connected among the ejector on a first intake manifold part side, ejectors in the first exhaust manifold part and on a second intake manifold part side, and the second exhaust manifold part. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种用于涡轮增压发动机的排气回流装置,其能够即使在通过涡轮增压器的高增压下也能够稳定地进行排气回流。 设置有涡轮增压器的涡轮增压发动机的进气歧管被分成每个气缸的第一进气歧管部分和第二进气歧管部分,其中吸入冲程不相互重叠。 喷射器安装在相应的进气口处。 排气歧管被分成第一排气歧管部分和每个气缸的第二排气歧管部分,其中废气处理不与第一和第二进气歧管部分相对应地相互重叠。 设置有止回阀的排气回流通道分别连接在第一进气歧管部分侧的喷射器中,第一排气歧管部分中的喷射器和第二进气歧管部分侧以及第二排气歧管部分。 版权所有(C)2005,JPO&NCIPI