Valve driving device for an engine
    1.
    发明授权
    Valve driving device for an engine 有权
    发动机气门驱动装置

    公开(公告)号:US06857406B2

    公开(公告)日:2005-02-22

    申请号:US10668597

    申请日:2003-09-24

    摘要: A valve driving device including a tappet assembly adapted to slide in a tappet guide hole to drive a valve and including a high-speed center tappet and low-speed side tappet; and a high-speed center cam and a low-speed side cam provided corresponding to the center tappet and the side tappet. A depression is formed which is depressed from a base circle to roughly the same profile as a shaft section of the camshaft so that the cam portion over a predetermined angle range where a cam nose section is not formed in the centrally located center cam is smaller than the base circles of the outside located side cams in profile.

    摘要翻译: 一种阀驱动装置,包括:挺杆组件,其适于在挺杆引导孔中滑动以驱动阀,并且包括高速中心挺杆和低速侧挺杆; 以及与中心挺杆和侧挺杆对应地设置的高速中心凸轮和低速侧凸轮。 形成凹部,其从基部圆弧凹陷到与凸轮轴的轴部分大致相同的轮廓,使得在凸轮前端部分没有形成在中心位置的中心凸轮中的预定角度范围的凸轮部分小于 外侧定位侧的基座凸轮在轮廓中。

    Valve drive mechanism for engine
    6.
    发明授权
    Valve drive mechanism for engine 失效
    发动机阀驱动机构

    公开(公告)号:US06397804B1

    公开(公告)日:2002-06-04

    申请号:US09927618

    申请日:2001-08-10

    IPC分类号: F01L1300

    摘要: A valve drive mechanism includes a generally cylindrically shaped tappet assembly (24) comprising a center tappet (41 ) and a side tappet (42). The center tappet (41 ) has a circular-arcuate side walls (41c) formed with vertical side shrouds (41d) at opposite sides of each side wall (41c) which overlap and slide contact with opposite end guide walls (42h) of the side tappet (42), respectively. When the tappet assembly (24) is in an unlocked state so as to transmit rotation of the side cams (25, 27), the vertical side shroud (41d) of the center tappet (41 ) slide on the vertical side walls (42h) of the side tappet 42 so as thereby to guide slide movement of the center tappet (41) relative to the side tappet (42).

    摘要翻译: 阀驱动机构包括大致圆柱形的挺杆组件(24),其包括中心挺杆(41)和侧挺杆(42)。 中心挺杆(41)具有圆形的侧壁(41c),在每个侧壁(41c)的相对侧形成有与侧面的相对端引导壁(42h)重叠并滑动接触的垂直侧罩(41d) 挺杆(42)。 当挺杆组件(24)处于解锁状态以便传递侧凸轮(25,27)的旋转时,中心挺杆(41)的垂直侧护罩(41d)在垂直侧壁(42h)上滑动, 从而引导中心挺杆(41)相对于侧挺杆(42)的滑动运动。

    Valve drive mechanism for engine
    7.
    发明授权

    公开(公告)号:US06523510B2

    公开(公告)日:2003-02-25

    申请号:US09927600

    申请日:2001-08-10

    IPC分类号: F01L134

    摘要: A valve drive mechanism includes a tappet assembly which comprises a center tappet, a pair of side tappets between which the center tappet is interposed so as to move relatively to the side tappets, and a locking/unlocking mechanism operative to mechanically couple the center tappet to both of the side tappets and to uncouple the center tappet from both of the side tappets so as to selectively transmit rotation of a high lift center cam and low lift side cams to twin valves such as twin intake valves and twin exhaust valves per cylinder. Locking/unlocking of the center tappet and each side tappet is performed in a position which is in a vertical plane including a center axis of each side tappet and intersecting perpendicularly to an axial direction of a camshaft and is offset from the center axis of the side tappet.

    Control device for supercharged engine
    10.
    发明申请
    Control device for supercharged engine 失效
    增压发动机控制装置

    公开(公告)号:US20060053786A1

    公开(公告)日:2006-03-16

    申请号:US10476764

    申请日:2003-02-06

    IPC分类号: F02D23/00 F02B33/44

    摘要: The invention is intended to provide good emission-cleaning performance by use of a three-way catalyst alone, without the need for a lean NOx catalyst, while ensuring a fuel economy improvement effect of lean burn operation, and to improve fuel economy up to high-load operating ranges while maintaining desired engine output performance by use of a supercharger. In a pair of preceding and following cylinders whose exhaust and intake strokes overlap each other, intake air supplied to the preceding cylinder (2A, 2D) is supercharged by a turbocharger (23) to produce combustion at a “lean” air-fuel ratio in the preceding cylinder (2A, 2D), and burned gas discharged from the preceding cylinder (2A, 2D) is introduced into the following cylinder (2B, 2C) through an intercylinder gas channel (22). Combustion in the following cylinder (2B, 2C) is made at an air-fuel ratio equal to or smaller than the stoichiometric air-fuel ratio by supplying fuel to the burned gas of a “lean” air-fuel ratio introduced from the preceding cylinder (2A, 2D), and gas discharged from the following cylinder (2B, 2C) is led to an exhaust passage (20) provided with a three-way catalyst (30).

    摘要翻译: 本发明旨在通过单独使用三元催化剂提供良好的排放清洁性能,而不需要贫NOx催化剂,同时确保稀燃操作的燃料经济性改善效果,并将燃料经济性提高到高 - 通过使用增压器保持期望的发动机输出性能。 在排气和进气冲程彼此重叠的一对先前和后续气缸中,供应到先前气缸(2A,2D)的进气通过涡轮增压器(23)进行增压,以在“贫”空气燃料 在前一个气缸(2A,2D)中的比例和从前一个气缸(2A,2D)排放的燃烧气体通过气缸内气体通道(22)引入到随后的气缸(2B,2C)中。 通过向燃烧气体供给燃料,在从下一个气缸(2B,2C)中燃烧的燃料比从化学计量空燃比导入的“贫”空燃比 先前的气缸(2A,2D)和从后续气缸(2B,2C)排出的气体被引导到设置有三元催化剂(30)的排气通道(20)。