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    • 13. 发明授权
    • Internal combustion engine with variable compression ratio
    • 具有可变压缩比的内燃机
    • US06427643B1
    • 2002-08-06
    • US09508290
    • 2000-03-14
    • Michael Patrick Dixon
    • Michael Patrick Dixon
    • F02B7504
    • F02B19/06F02B3/06F02B75/042F02D15/04Y02T10/125
    • A lean burn auto-ignition internal combustion engine which has a combustion volume which includes two parts one entering into the other, the volume of the second part being variable by control means (34) which takes into account the various operating parameters of the engine to ensure that auto-ignition takes place at a time which ensures maximum benefit from the ignited fuel charge. In a piston engine there is a secondary cylinder (30) and piston (31) entering into the main cylinder (10), the piston in the secondary cylinder being continuously movable to vary the compression ration of the combustion volume defined by the two pistons (11, 31) so that ignition takes place at a position of the movement of the main piston to ensure maximum utilization of the power generated by the ignited charge.
    • 一种具有燃烧体积的稀燃自点火内燃机,其包括两部分进入另一部分,第二部分的体积可由控制装置(34)变化,该装置考虑到发动机的各种操作参数 确保自动点火一次发生,从而确保从点燃的燃料充电中获得最大的收益。 在活塞式发动机中,存在进入主汽缸(10)的二级气缸(30)和活塞(31),次级气缸中的活塞可连续移动以改变由两个活塞限定的燃烧体积的压缩比( 11,31),使得在主活塞运动的位置处发生点火,以确保最大限度地利用由点燃电荷产生的电力。
    • 15. 发明授权
    • Rigid crankshaft cradle and actuator
    • 刚性曲轴支架和执行器
    • US06260532B1
    • 2001-07-17
    • US09406124
    • 1999-09-27
    • Edward Charles Mendler
    • Edward Charles Mendler
    • F02B7504
    • F02F7/0019F02B75/047
    • Poor full power engine performance in variable compression ratio engines resulting from small valve overlap periods, necessary for preventing piston-to-valve strike at high compression ratio, is prevented by phase shifting of the intake and exhaust valves with change of compression ratio. The crankshaft is rotatably mounted in eccentric main bearing supports for adjusting the position of the crankshaft rotational axis relative to the engine housing. A drive gear is mounted on the crankshaft and a first driven gear is mounted on a secondary shaft mounted in the engine housing. The secondary shaft drives the intake camshaft drive. The mesh direction between the drive gear and the first driven gear points generally away from the cylinder head of the engine. A second driven gear is mounted on a third shaft, the second driven gear being in mesh with a drive gear mounted on the crankshaft. The third shaft drives the exhaust camshaft drive. The crankshaft axis of rotation is located between the gear mesh of the second driven gear and the gear mesh of the third driven gear. At high compression ratio, valve overlap duration is short, providing good engine idling stability and preventing piston to valve strike. Rotating the eccentric main bearing supports and moving the crankshaft rotational axis away from the cylinder head of the engine lowers the compression ratio of the engine and adjusts the phase timing of the second and third driven gears relative to the crankshaft, increasing the valve overlap period of the intake and exhaust valves and providing significantly increased maximum engine power. The pitch diameter of the first and second driven gears is set to provide an optimum range of valve overlaps.
    • 通过压缩比的变化来防止进排气阀的相位变化,防止了以较高的压缩比来防止活塞到阀门的冲击所需的小的气门重叠时段引起的可变压缩比发动机的全功率发动机性能不佳。 曲轴可旋转地安装在偏心主轴承座中,用于调节曲轴转动轴线相对发动机壳体的位置。 驱动齿轮安装在曲轴上,第一从动齿轮安装在安装在发动机壳体中的副轴上。 副轴驱动进气凸轮轴驱动。 驱动齿轮和第一从动齿轮点之间的网格方向通常远离发动机的气缸盖。 第二从动齿轮安装在第三轴上,第二从动齿轮与安装在曲轴上的驱动齿轮啮合。 第三轴驱动排气凸轮轴驱动。 曲轴的旋转轴位于第二从动齿轮的齿轮啮合与第三从动齿轮的齿轮啮合之间。 在高压缩比下,阀重叠持续时间短,提供良好的发动机空转稳定性并防止活塞向阀门冲击。 旋转偏心主轴承支架并使曲轴旋转轴线远离发动机气缸盖,降低发动机的压缩比并调节第二和第三从动齿轮相对于曲轴的相位正时,增加阀重叠周期 进气和排气阀,并提供显着增加的最大发动机功率。 第一和第二从动齿轮的节圆直径被设定成提供阀重叠的最佳范围。
    • 16. 发明授权
    • Variable stroke engine
    • 可变行程发动机
    • US06814034B2
    • 2004-11-09
    • US10715829
    • 2003-11-19
    • Yoshikazu YamadaYoshikazu Sato
    • Yoshikazu YamadaYoshikazu Sato
    • F02B7504
    • F02B75/045F02B75/048
    • A variable stroke engine includes: a connecting rod connected at one end to a piston through a piston pin; a subsidiary arm turnably connected at one end to the other end of the connecting rod and connected to a crankshaft through a crankpin; and a control rod connected at one end to the subsidiary arm at a position displaced from a connection position of the connecting rod; a support position of the other end of the control rod being capable of being displaced in a plane perpendicular to an axis of the crankshaft. In the variable stroke engine, a switchover means switches over: a state in which a high expansion stroke is provided such that the stroke of the piston in an expansion stroke is larger than that in a compression stroke when an engine load is high; and a state in which a constant compression ratio is provided when the engine load is low. Thus, a reduction in fuel consumption is achieved irrespective of the level of an engine load, while putting a high value on a reduction in fuel consumption in a state in which the engine load is low.
    • 18. 发明授权
    • Variable compression ratio mechanism for reciprocating internal combustion engine
    • 往复式内燃机的可变压缩比机构
    • US06546900B2
    • 2003-04-15
    • US09813891
    • 2001-03-22
    • Takayuki AraiKatsuya MotekiRyosuke Hiyoshi
    • Takayuki AraiKatsuya MotekiRyosuke Hiyoshi
    • F02B7504
    • F02B75/048F02B75/045
    • A variable compression ratio mechanism for a reciprocating engine includes a connecting rod split into upper and lower connecting rod portions linked to each other through a first connecting pin. A rockable arm is oscillatingly linked at one end to the lower connecting rod portion through a second connecting pin. A control mechanism shifts the center of oscillating motion of the rockable arm to vary a compression ratio of the engine. A piston stroke is set to be greater than two times a crank radius of a crank, irrespective of variations in the compression ratio. A linkage is dimensioned and laid out, so that its crankpin load is less than a crankpin load produced by a linkage that the crankpin is located on a perpendicular line at substantially the midpoint of a line segment between and including the centers of the first and second connecting pins.
    • 用于往复式发动机的可变压缩比机构包括分割成通过第一连接销彼此连接的上连杆和下连杆部分的连杆。 摇臂通过第二连接销在一端与下连接杆部分振动连接。 控制机构使可摆动臂的摆动运动的中心移动以改变发动机的压缩比。 不考虑压缩比的变化,将活塞行程设定为大于曲柄曲柄半径的两倍。 联动装置的尺寸和布置,使得其曲柄销负载小于由链接产生的曲柄销负载,曲柄销位于基本上位于第一和第二的中心之间的线段的中点处的垂直线上 连接引脚。
    • 19. 发明授权
    • Offset connecting rod for internal combustion engines
    • 内燃机偏心连杆
    • US06460505B1
    • 2002-10-08
    • US09735782
    • 2000-12-13
    • Angelo V. Quaglino, Jr.
    • Angelo V. Quaglino, Jr.
    • F02B7504
    • F16C7/023F02B75/32F02F7/0019
    • An improved internal combustion engine which includes an engine block; a plurality of cylinders formed in the engine block; a piston moveable within each of the cylinders; a spark plug providing ignition to fuel within each of the cylinders for moving the cylinders along an engine cycle; a rod with a central longitudinal axis connecting each of the pistons at a first end of the rod to a crankshaft at the second end of each of the rod; the connection point between the second end of each of the rods to the crankshaft being offset from the longitudinal axis sufficiently to increase engine torque and horsepower, as each of the pistons travel within their respective cylinders, but not to affect the engine stroke.
    • 一种改进的内燃机,其包括发动机缸体; 形成在发动机缸体中的多个气缸; 可在每个气缸内移动的活塞; 火花塞,其提供点燃到每个气缸内的燃料,用于沿着发动机循环移动气缸; 杆,其中心纵向轴线将杆的第一端处的每个活塞连接到每个杆的第二端处的曲轴; 随着每个活塞在它们各自的气缸内行进,而不影响发动机行程,每个杆与曲轴的第二端之间的连接点充分地增加了发动机扭矩和马力。
    • 20. 发明授权
    • Variable compression ratio control system for an internal combustion engine
    • 用于内燃机的可变压缩比控制系统
    • US06450136B1
    • 2002-09-17
    • US09853401
    • 2001-05-14
    • Edward Daniel KlompRodney Brewer Rask
    • Edward Daniel KlompRodney Brewer Rask
    • F02B7504
    • F02B75/048F02B1/12F02B75/045
    • An internal combustion engine has a mechanism to control the compression ratio of the combustion chamber. The mechanism includes an eccentric journal bearing supporting each piston rod on the crankshaft of the engine. The journal bearing has a gear member secured thereto that meshes with an inner toothed profile of a ring gear which has an outer toothed profile that meshes with an engine-driven gear. The speed of the engine-driven gear is controllable through a differential gear mechanism to adjust the relative position of the eccentricity of the journal bearing relative to the crank throw on which it is supported. This will change the compression ratio of the combustion chamber of the engine. The mechanism, with a modification, can also be employed to control the maximum compression pressure or the maximum combustion pressure in the combustion chambers of engine.
    • 内燃机具有控制燃烧室的压缩比的机构。 该机构包括支撑发动机曲轴上的每个活塞杆的偏心轴颈轴承。 轴颈轴承具有固定到其上的齿轮构件,其与具有与发动机驱动齿轮啮合的外齿轮廓的齿圈的内齿轮廓啮合。 发动机驱动齿轮的速度可通过差速齿轮机构控制,以调节轴颈轴承相对于其所支撑的曲柄轴的偏心度的相对位置。 这将改变发动机的燃烧室的压缩比。 具有改进的机构也可用于控制发动机燃烧室中的最大压缩压力或最大燃烧压力。