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    • 2. 发明授权
    • Valve-actuating for internal combustion engine
    • 用于内燃机的阀门致动
    • US07431000B2
    • 2008-10-07
    • US10516947
    • 2003-07-02
    • Noriaki FujiiHiromu NakamuraJunichi Iwamoto
    • Noriaki FujiiHiromu NakamuraJunichi Iwamoto
    • F01L1/18
    • F01L13/0063F01L1/18F01L1/185F01L13/0005F01L13/0021F01L2001/0535F01L2105/00Y10T74/20882Y10T74/2107
    • A pair of link arms each supported at one end thereof on an engine body for swinging movement about an axis parallel to a rotational axis for a valve-operating cam are connected at the other ends, for relative turning movement about an axis parallel to the rotational axis, directly to a rocker arm having a valve abutment abutting against an engine valve and a cam abutment contacting with the valve-operating cam. At least any one of the link arms is swingably supported at one end thereof on the engine body for continuous movement within a plane perpendicular to a rotational axis for the valve-operating cam. Such an arrangement ensures that a valve-operating system can be constructed compactly, and the opening lift amount of the engine valve can be changed continuously, while ensuring an excellent followability to the valve-operating cam.
    • 一对连杆臂在其一端支撑在发动机主体上,用于围绕平行于用于阀操作凸轮的旋转轴线的轴线摆动运动,在另一端连接,用于围绕平行于旋转轴线的轴线进行相对转动 轴,直接连接到具有邻接发动机气门的阀座和与阀操作凸轮接触的凸轮支座的摇臂。 至少任一个连杆臂在其一端可摆动地支撑在发动机主体上,用于在垂直于用于阀操作凸轮的旋转轴线的平面内连续运动。 这样的结构确保了可以紧凑地构造阀操作系统,并且可以连续地改变发动机气门的打开提升量,同时确保对阀操作凸轮的良好追随性。
    • 5. 发明授权
    • Engine valve operating system
    • 发动机气门操作系统
    • US07631621B2
    • 2009-12-15
    • US10585831
    • 2005-01-13
    • Noriaki FujiiKatsunori NakamuraAkiyuki YonekawaTomoya FujimotoKeiko Yoshida
    • Noriaki FujiiKatsunori NakamuraAkiyuki YonekawaTomoya FujimotoKeiko Yoshida
    • F01L1/34
    • F01L13/0015F01L1/185F01L1/267F01L13/0021F01L2105/00F01L2820/032
    • A rocker arm (63) is provided with a valve connecting portion (63a) into which tappet screws (70) abutting against a pair of engine valves (19) are screwed so that their advance/retract positions can be adjusted, and the rocker arm (63) has a cam abutting portion (65) which abuts against a valve operating cam (69) and is interlocked and connected to the engine valves (19). The rocker arm (63) turnably connects to one end of a first link arm (61) turnably supported at a fixed position of an engine body and to one end of a second link arm turnably supported by a displaceable movable support shaft (68a). The rocker arm (63) is formed so that the valve connecting portion (63a) has a larger width in a direction along a rotating axis of the valve operating cam (69) than in the remaining part. This enables the lift amount of the engine valves to be continuously varied. It is also possible to reduce the size of the system, while ensuring follow-up ability of the opening/closing operations.
    • 摇臂(63)设置有阀连接部(63a),螺栓将抵靠在一对发动机气门(19)上的挺杆螺钉(70)拧入到其中,使得其前进/后退位置能够被调整,摇臂 (63)具有与阀操作凸轮(69)抵接的凸轮抵接部(65),并与发动机气门(19)联动并连接。 摇臂(63)可转动地连接到可转动地支撑在发动机本体的固定位置的第一连杆臂(61)的一端和可转动的可移动支撑轴(68a)可转动地支撑的第二连杆臂的一端。 摇臂(63)形成为使得阀连接部(63a)在与其他部分相比沿着阀操作凸轮(69)的旋转轴线的方向上具有较大的宽度。 这使发动机气门的升程量不断变化。 也可以减小系统的尺寸,同时确保打开/关闭操作的后续能力。
    • 7. 发明授权
    • Valve-moving device for engine
    • 发动机阀门移动装置
    • US07469668B2
    • 2008-12-30
    • US10558872
    • 2004-05-28
    • Noriaki FujiiAkiyuki YonekawaKatsunori Nakamura
    • Noriaki FujiiAkiyuki YonekawaKatsunori Nakamura
    • F01L1/34
    • F01L13/0021F01L1/18F01L1/267F01L13/0015F01L2105/00F01L2820/032
    • In an engine in which a lift amount of a valve can be changed continuously, an engine valve operating system including a valve lift-changing mechanism is capable of increasing and decreasing the lift amount of the valve without changing an opening angle for the valve and capable of decreasing a tappet clearance in accordance with a decrease in lift amount of the valve. Thus, it is possible to prevent the ratio of the tappet clearance to the lift amount at a low valve lift from being increased to minimize the influence of the dispersion of the tappet clearance and to reduce the seating speed of the valve at the low valve lift to prevent the generation of a noise. It is also possible to prevent a reduction in performance of the engine at a high valve lift due to the dispersion of the tappet clearance and to decrease the seating noise of the valve at the low valve lift.
    • 在可以连续地改变阀的升程量的发动机中,包括气门升程改变机构的发动机气门操作系统能够在不改变阀的开启角度的情况下增加和减小阀的升程量,并且能够 根据阀的提升量的减小而减小挺杆间隙。 因此,可以防止挺杆间隙与低气门升程升程量的比例增加,以最小化挺杆间隙分散的影响,并降低阀门在低气门升程时的安装速度 以防止产生噪音。 也可以防止由于挺杆间隙的分散引起的高气门升程时的发动机性能的降低,并且在低气门升程时降低阀的安装噪音。
    • 8. 发明申请
    • Engine valve operating system
    • 发动机气门操作系统
    • US20070157895A1
    • 2007-07-12
    • US10586962
    • 2005-01-28
    • Noriaki FujiiKeiko YoshidaTomoya Fujimoto
    • Noriaki FujiiKeiko YoshidaTomoya Fujimoto
    • F01L1/34F01L1/02F01L1/18
    • F01L1/2411F01L1/20F01L13/0015F01L13/0021F01L2105/00
    • An engine valve operating system is provided in which a rocker arm that swings by following a valve operating cam abuts against an engine valve via a hydraulic tappet, a receiving member (41) receiving the hydraulic tappet (12) being slidably fitted into the rocker arm (13), the hydraulic tappet (12) being fitted into the rocker arm (13), a restricting part (29) being provided so as to face the receiving member (41) from the side opposite to the hydraulic tappet (12), and an adjustment screw (44) for adjusting a clearance between the restricting part (29) and the receiving member (41) when the engine valve is in a valve-closed state being screwed into an engine main body (5) so that its position can be adjusted back-and-forth so as to abut against the receiving member (41) when the engine valve is closed. This enables the amount of lift of the engine valve to easily be adjusted with good precision while eliminating the need for complicated machining or production control when opening or closing the engine valve via the hydraulic tappet by means of the rocker arm.
    • 提供了一种发动机气门操作系统,其中通过跟随阀操作凸轮摆动的摇臂通过液压挺杆抵靠发动机气门,接收液压挺杆(12)的接收构件(41)可滑动地装配到摇臂 (13),所述液压挺杆(12)装配到所述摇臂(13)中,限制部件(29)设置成与所述液压挺杆(12)相对的一侧面对所述接收构件(41) 以及调节螺钉(44),用于当所述发动机阀处于关闭状态时将所述限制部(29)与所述接收构件(41)之间的间隙调整为螺纹连接到发动机主体(5)中,使得其位置 当发动机气门关闭时,可以来回前后调节以抵靠接收构件(41)。 这使得能够以良好的精度容易地调节发动机气门的升程量,而在通过摇臂通过液压挺杆打开或关闭发动机气门时,不需要复杂的加工或生产控制。
    • 10. 发明授权
    • Structure for mounting cylinder head cover of internal combustion engine
    • 内燃机气缸盖罩安装结构
    • US06257188B1
    • 2001-07-10
    • US09386143
    • 1999-08-31
    • Noriaki FujiiKouta Yoshiura
    • Noriaki FujiiKouta Yoshiura
    • F01M910
    • F02B77/13F02B2275/18F02F7/006F02F2001/245
    • An internal combustion engine 1 in which an outer peripheral edge of a cylinder head cover 25 abuts against a cylinder head 2, and the cylinder head cover 25 is mounted on the cylinder head 2, a recessed portion 26 is formed in a central portion of the cylinder head cover as viewed in a widthwise direction perpendicular to a crankshaft, a coil spring 32 is loosely fitted over a connecting member 28 which is passed through the recessed portion 26 and has one end fixed to the cylinder head. The coil spring 32 in a compressed state is clamped by a bottom surface of the recessed portion 26 of the cylinder head cover 25 and a spring receiving portion 33 at another end of the connecting member 28. The coil spring 32, the connecting member 28, and the spring receiving portion 33 are accommodated within the recessed portion 26 of the cylinder head cover 25.
    • 一种内燃机1,其中气缸盖罩25的外周边缘与气缸盖2抵接,气缸盖罩25安装在气缸盖2上,凹部26形成在 在与曲轴垂直的宽度方向上观察的气缸盖罩,螺旋弹簧32松动地配合在穿过凹部26并且一端固定在气缸盖上的连接部件28上。 处于压缩状态的螺旋弹簧32由气缸盖罩25的凹部26的底面和连接部件28的另一端的弹簧接收部33夹紧。螺旋弹簧32,连接部件28, 并且弹簧接收部33容纳在气缸盖罩25的凹部26内。