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公开(公告)号：US5862785A
公开(公告)日：1999-01-26
申请号：US13143
申请日：1998-01-26
IPC分类号： F01L1/24
CPC分类号： F01L1/2405
摘要： A hydraulic lash adjuster having a body (11) defining a blind bore (13) and a fluid port (35) in communication with a source of fluid pressure. Upper and lower plunger elements (17,19) are disposed within the body and define a low pressure fluid chamber (21). The upper end portion (53) of the lower plunger element (19) defines a series of openings (55) providing fluid communication from the bore (13) into the chamber (21). The bore (13) and the upper plunger element (17) define a radial clearance sufficient that the clearance and the openings (55) comprise substantially the only fluid path from the fluid port (35) to the chamber (21). The invention reduces the machining of the body (11) and the upper plunger (17) which are normally required, thus substantially reducing the cost of the lash adjuster.
摘要翻译： 液压间隙调节器，其具有限定盲孔（13）的主体（11）和与流体压力源连通的流体端口（35）。 上部和下部柱塞元件（17,19）设置在主体内并限定低压流体室（21）。 下柱塞元件（19）的上端部分（53）限定了一系列开口（55），其提供从孔（13）到腔室（21）的流体连通。 孔（13）和上柱塞元件（17）限定径向间隙，足以使得间隙和开口（55）基本上包括从流体端口（35）到腔室（21）的唯一流体路径。 本发明减少了通常需要的主体（11）和上柱塞（17）的加工，从而大大降低了间隙调节器的成本。
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公开(公告)号：US5862784A
公开(公告)日：1999-01-26
申请号：US71010
申请日：1998-05-01
申请人： Bryan K. Blowers
发明人： Bryan K. Blowers
CPC分类号： F01M9/104 , F01L1/2405 , F01L2109/00
摘要： A hydraulic lash adjuster of the type in which the plunger assembly (15) includes a ball plunger element (50), and defines a valve opening (57) in the lower plunger member (19). A check valve member (53) is seated in the valve opening (57), for opening the valve opening in response to a relative decrease in the pressure in a high pressure chamber (23). The ball plunger element (50) includes a metering valve element (45) movable between an outward position (FIG. 1) and an inward position (FIG. 2). An elongated member (65) is fixed to move with the metering element (45), and includes a lower end (67) juxtaposed the valve opening (57). When the metering element (45) is in its inward position, the lower end (67) engages the check ball (53) and lifts it from the valve opening, thus facilitating assembly of the lash adjuster, filled with fluid, into an engine.
摘要翻译： 一种液压间隙调节器，其中柱塞组件（15）包括球柱塞元件（50），并且在下柱塞构件（19）中限定了阀开口（57）。 止回阀构件（53）位于阀开口（57）中，用于响应于高压室（23）中的压力的相对降低而打开阀开口。 球形活塞元件（50）包括在外部位置（图1）和向内位置（图2）之间可移动的计量阀元件（45）。 细长构件（65）固定以与计量元件（45）一起移动，并且包括与阀开口（57）并置的下端（67）。 当计量元件（45）处于其内部位置时，下端（67）接合止回球（53）并将其从阀门开口提起，从而便于将填充有流体的间隙调节器组装到发动机中。
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公开(公告)号：US5855191A
公开(公告)日：1999-01-05
申请号：US880417
申请日：1997-06-23
CPC分类号： F01L1/245 , F01L1/2405
摘要： A hydraulic lash adjuster of the type including a ball plunger (61) defining a passage (63), or a body portion (85) defining a passage (87). A metering valve is disposed in the passage, and in accordance with the invention (FIGS. 2-4), a shank portion (77) of the metering pin (73) defines a metering passage (81). During normal operation, pressure in the low pressure chamber (21) biases the metering pin (73) upward, to a position in which fluid can flow from the chamber (21), through the metering passage (81), to the external surface (71) of the ball plunger (61). When pressure in the chamber (21) is very low, or negative, a head portion (75) is disposed against a seat (69) in the manner of a check valve. The up and down movement of the pin (73) prevents the metering passage (81) from becoming plugged with contaminants.
摘要翻译： 一种液压间隙调节器，其包括限定通道（63）的球柱塞（61）或限定通道（87）的主体部分（85）。 计量阀设置在通道中，并且根据本发明（图2-4），计量销（73）的柄部分（77）限定了计量通道（81）。 在正常操作期间，低压室（21）中的压力将计量销（73）向上偏压到流体可以从室（21）流过计量通道（81）的位置到外表面 71）。 当室（21）中的压力非常低或为负时，头部（75）以止回阀的方式抵靠座（69）设置。 销（73）的上下运动防止计量通道（81）被污染物堵塞。
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公开(公告)号：US5385124A
公开(公告)日：1995-01-31
申请号：US251766
申请日：1994-05-31
CPC分类号： F01L1/245 , F01L2101/00 , F01L2105/02 , Y10T74/20504
摘要： A hydraulic roller tappet for an internal combustion engine wherein the tappet body is formed of hardenable cast iron, the roller axle is formed of a through hardened steel and wherein the axle bores in the body and the axle are dimensioned such that the axle is in floating relationship with the bores. In a preferred embodiment the axle is axially retained by retaining rings received in grooves formed in the body.
摘要翻译： 一种用于内燃机的液压辊挺杆，其中挺杆主体由可硬化的铸铁形成，所述滚子轴由穿过硬化的钢形成，并且其中所述主体中的所述轴孔和所述轴的尺寸使得所述轴处于浮动状态 与孔的关系。 在一个优选实施例中，轴通过容纳在体内形成的槽中的保持环轴向保持。
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