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    • 5. 发明授权
    • Pistons for internal combustion engines
    • 内燃机活塞
    • US08555849B2
    • 2013-10-15
    • US12523691
    • 2008-01-07
    • David Lee
    • David Lee
    • F02F3/00
    • F16J9/066
    • A piston for an internal combustion engine includes a piston crown (2) and a cylindrical side wall (4), an annular piston ring groove (8) being formed in the side wall (4) which accommodates an annular spring (14). The spring (14) includes an annular radially extending portion (16) and first (20) and second (22) projections. The radially extending portion (16) divides the annular groove into two chambers in the axial direction of the piston. The upper chamber closest to the piston crown accommodates an annular compression ring (10). The lower chamber furthest from the piston crown accommodates an annular oil scraper ring (12). The first projection (20) is arranged to contact the upper surface closest to the piston crown of the annular groove (8). The second projection (22) is arranged to contact the inner surface of the oil scraper ring (12) to urge it outwardly. The height of the upper chamber in the axial direction is greater than that of the compression ring (10), whereby in use, the pressure acting on the piston crown will act also on the inner surface of the compression ring (10) and urge it in the outward direction.
    • 一种用于内燃机的活塞包括活塞冠(2)和圆柱形侧壁(4),环形活塞环槽(8)形成在容纳环形弹簧(14)的侧壁(4)中。 弹簧(14)包括环形径向延伸部分(16)和第一(20)和第二(22)突起。 径向延伸部分16沿着活塞的轴向将环形槽分成两个腔室。 最靠近活塞顶部的上室容纳环形压缩环(10)。 距离活塞顶部最远的下室容纳环形刮油环(12)。 第一突起(20)布置成接触最接近环形槽(8)的活塞顶部的上表面。 第二突起(22)布置成接触油刮环(12)的内表面以向外推动。 上室在轴向的高度大于压缩环(10)的高度,因此在使用中,作用在活塞顶盖上的压力也将作用在压缩环(10)的内表面上并促使其 在向外的方向。
    • 7. 发明申请
    • PISTONS FOR INTERNAL COMBUSTION ENGINES
    • 内燃机活塞
    • US20100065008A1
    • 2010-03-18
    • US12523691
    • 2008-01-07
    • David Lee
    • David Lee
    • F16J9/06F02F3/00
    • F16J9/066
    • A piston for an internal combustion engine includes a piston crown (2) and a cylindrical side wall (4), an annular piston ring groove (8) being formed in the side wall (4) which accommodates an annular spring (14). The spring (14) includes an annular radially extending portion (16) and first (20) and second (22) projections. The radially extending portion (16) divides the annular groove into two chambers in the axial direction of the piston. The upper chamber closest to the piston crown accommodates an annular compression ring (10). The lower chamber furthest from the piston crown accommodates an annular oil scraper ring (12). The first projection (20) is arranged to contact the upper surface closest to the piston crown of the annular groove (8). The second projection (22) is arranged to contact the inner surface of the oil scraper ring (12) to urge it outwardly. The height of the upper chamber in the axial direction is greater than that of the compression ring (10), whereby in use, the pressure acting on the piston crown will act also on the inner surface of the compression ring (10) and urge it in the outward direction.
    • 一种用于内燃机的活塞包括活塞冠(2)和圆柱形侧壁(4),环形活塞环槽(8)形成在容纳环形弹簧(14)的侧壁(4)中。 弹簧(14)包括环形径向延伸部分(16)和第一(20)和第二(22)突起。 径向延伸部分16沿着活塞的轴向将环形槽分成两个腔室。 最靠近活塞顶部的上室容纳环形压缩环(10)。 距离活塞顶部最远的下室容纳环形刮油环(12)。 第一突起(20)布置成接触最接近环形槽(8)的活塞顶部的上表面。 第二突起(22)布置成接触油刮环(12)的内表面以向外推动。 上室在轴向的高度大于压缩环(10)的高度,因此在使用中,作用在活塞顶盖上的压力也将作用在压缩环(10)的内表面上并促使其 在向外的方向。
    • 8. 发明授权
    • Clutches
    • 离合器
    • US07513350B2
    • 2009-04-07
    • US10556371
    • 2004-05-13
    • Shaun Ewan MephamRobert John Barnes
    • Shaun Ewan MephamRobert John Barnes
    • F16D48/04F16D25/0638
    • F16D48/02F16D25/0638F16D48/04F16D2048/0215F16D2048/0221F16D2048/0284
    • A clutch including two rotary shafts, one of which is connected to one or more first clutch plates which cooperate with a second set of clutch plates, the clutch plates acted on by an actuating piston positioned within a two chamber hydraulic cylinder. A torque control valve comprising a cylindrical inner valve member rotatably and linearly movably received in a cylindrical opening in an outer valve member. Each valve member having elongate recesses positioned such that longitudinal movement of the inner valve member within the outer valve member will vary the degree of communication between the first and second elongate recesses connected to two hydraulic fluid sources of differing pressures. The second clutch plates are connected to one side of a spring of predetermined spring rate, which is also connected to one of the valve members, and the other side of the spring is connected to the other of the valve members and to the other rotary shaft.
    • 一种离合器,包括两个旋转轴,其中一个连接到与第二组离合器片配合的一个或多个第一离合器片,离合器片由位于两室液压缸内的致动活塞作用。 一种扭矩控制阀,包括可旋转并线性地可移动地容纳在外部阀构件的圆柱形开口中的圆柱形内部阀构件。 每个阀构件具有细长的凹部,其定位成使得内部阀构件在外部阀构件内的纵向移动将改变连接到两个不同压力的液压流体源的第一和第二细长凹槽之间的连通程度。 第二离合器片连接到预定弹簧速率的弹簧的一侧,弹簧的一侧也连接到一个阀构件,弹簧的另一侧连接到另一个阀构件和另一个旋转轴 。
    • 9. 发明授权
    • Carburettor
    • 化油器
    • US07407153B2
    • 2008-08-05
    • US10574247
    • 2004-09-29
    • Stephen Brian Glover
    • Stephen Brian Glover
    • F02M7/24
    • F02B25/22F02D9/1045F02M13/046Y10S261/01
    • A carburettor for a two stroke engine includes a flow duct including rich and lean flow passages (160, 150) in parallel, through which, in use, air flows in a flow direction and which are separated by substantially planar partition (130). At least one fuel jet (5) communicates with the rich passage (160) and the partition includes an aperture (140) towards which the fuel jet is directed. A substantially planar butterfly valve (120) is received in the aperture so as to be pivotable between a first position, in which the flow duct is substantially closed and the aperture is substantially open, and a second position, in which the flow duct is substantially open and the aperture is substantially closed. The upstream half of the aperture (140) is defined by upstream semi-annular seating ledge (148) affording an upstream seating surface (151), which is engaged by one of the surfaces of the butterfly valve (120), when it is in the second position, and a first end surface (153), which extends between the upstream seating surface and that surface of the partition which is directed towards the lean passage. The downstream half of the aperture (140) is defined by a downstream semi annular seating ledge (149) affording a downstream seating surface (151), which is engaged by the upper surface of the butterfly valve, when it is in the second position, and a second end surface (161), which extends between the downstream seating surface and that surface of the partition which is directed towards the rich passage. At least one of the upstream semi annular seating ledge, the downstream semi-annular seating and the valve are so shaped that, in use, a pressure differential is created between the rich and lean passages at the upstream and/or downstream edges of the valve, the pressure in the lean passage being higher than that in the rich passage.
    • 用于二冲程发动机的化油器包括流动管道,其包括平行的富有和贫的流动通道(160,150),在使用中,空气在流动方向上流动并且由基本上平面的分隔件(130)分开。 至少一个燃料喷嘴(5)与富通道(160)连通,并且分隔件包括孔(140),燃料喷嘴朝向该孔。 基本上平面的蝶形阀(120)被容纳在孔中,以便可在第一位置和第二位置之间枢转,第一位置和第二位置之间,流动管道基本上封闭,第一位置基本上封闭,第二位置, 打开并且孔径基本上封闭。 孔(140)的上游一半由上游半环形座架(148)限定,提供一个上游座面(151),当其处于 第二位置和第一端面(153),该第一端面在上游支座表面和指向该通道的分隔件的表面之间延伸。 孔140的下游半部由下游的半环形安装凸缘(149)限定,该下部半环形安装凸缘(149)在其处于第二位置时提供下游就座表面(151),该下游座面由蝶形阀的上表面接合, 以及第二端表面(161),其在下游就座表面和指向富通道的分隔件的表面之间延伸。 上游半环形座椅凸缘中的至少一个,下游半环形座椅和阀门的形状使得在使用中在阀门的上游和/或下游边缘处的富和贫通道之间产生压力差 ,贫气通道中的压力高于富通道的压力。