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公开(公告)号：US4373477A
公开(公告)日：1983-02-15
申请号：US220490
申请日：1980-12-29
IPC分类号： F16K31/524 , F01L1/24 , F01L1/25 , F01L1/14
CPC分类号： F01L1/25
摘要： A lash adjuster 10 is disclosed for use in engine valve gear. The adjuster includes a body 40 and a plunger 50 is slidably received in a bore 48 formed in body. A piston 63 is slidably received in the plunger and forms a high pressure chamber 86 within the plunger. A one-way valve means 72 is disposed intermediate the piston and plunger for admitting fluid to the chamber for lash adjustment. An annular retaining clip 90 is seated in a locking position in a groove 106 formed in an outer wall 104 of the plunger body. The clip extends radially beyond the end face of the hub bore 48 thereby preventing fall out of the plunger body prior to assembly in the engine valve gear.
摘要翻译： 公开了一种用于发动机气门齿轮的间隙调节器10。 调节器包括主体40和柱塞50可滑动地容纳在形成于主体中的孔48中。 活塞63可滑动地容纳在柱塞中并在柱塞内形成高压室86。 单向阀装置72设置在活塞和柱塞之间，用于允许流体进入腔室以进行间隙调节。 环形保持夹90位于形成在柱塞体的外壁104中的凹槽106中的锁定位置。 夹子径向延伸超过轮毂孔48的端面，从而防止在组装在发动机气门齿轮中之前从柱塞体脱落。
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公开(公告)号：US4688526A
公开(公告)日：1987-08-25
申请号：US798261
申请日：1985-11-14
CPC分类号： F01L1/25 , F01L2109/00
摘要： A hydraulic lash adjusting tappet (10) for use in engine valve gear of the direct-acting type having one end of the tappet contacting the end (26) of the combustion chamber valve stem (22) and the other end contacting the camshaft lobe (16). The tappet has a body (34) formed with a tubular wall portion (36) having one end thereof closed by an end wall (38) and with a tubular hub (40) therewithin formed integrally with the end wall and extending axially therefrom. A lash adjuster assembly (44) is slidingly received in the tubular hub which defines a reaction surface (50) remote from the cam face reaction surface (18) defined by the end wall. A seal (88) defines an expansible closed fluid reservoir (114) in combination with the body and includes a compliant diaphragm (90) carried about the outer circumferential portion (92) thereof by said body and a sleeve cap (52) insert-molded within the inner circumferential portion (110) of the diaphragm to provide a central portion (104) wear surface interposed, in application, between the lash adjuster reaction surface and the valve stem. In the preferred embodiment the compliant diaphragm has a plurality of circumferentially spaced accumulators (226, 232) for absorbing by flexure thereof, pressure transients in the reservoir and has stiffening ribs (234, 240) integrally formed between the accumulators.
摘要翻译： 一种液压间隙调节挺杆（10），其用于直接作用型的发动机气门齿轮，其具有接触燃烧室阀杆（22）的端部（26）的挺杆的一端，并且接触凸轮轴叶片 16）。 挺杆具有形成有管状壁部分（36）的主体（34），该管状壁部分（36）的一端由端壁（38）封闭，并在其中与端壁一体地形成并从其轴向延伸的管状毂（40）。 间隙调节器组件（44）滑动地容纳在管状毂中，其限定远离由端壁限定的凸轮面反应表面（18）的反作用表面（50）。 密封件（88）与主体组合地限定可膨胀的封闭流体储存器（114），并且包括由所述主体围绕其外圆周部分（92）承载的柔性隔膜（90）和嵌入成型的套筒盖 在隔膜的内圆周部分（110）内，以提供中间部分（104）的磨损表面，其应用在间隙调节器反应表面和阀杆之间。 在优选实施例中，柔性隔膜具有多个周向间隔开的累积器（226,232），用于通过弯曲来吸收储存器中的压力瞬变并且具有一体形成在蓄能器之间的加强肋（234,240）。
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公开(公告)号：US4715334A
公开(公告)日：1987-12-29
申请号：US864561
申请日：1986-05-16
CPC分类号： F01L1/25 , F01L2109/00
摘要： A hydraulic lash adjusting tappet (10) for use in engine valve gear of the direct-acting type have one end of the tappet contacting the end (26) of the combustion chamber valve stem (22) and the other end contacting the camshaft lobe (16). The tappet has a body (34) formed with a tubular wall portion (36) having one end thereof closed by an end wall (38) and with a tubular hub (40) therewithin formed integrally with the end wall and extending axially therefrom. A lash adjuster assembly (44) is slidingly received in the tubular hub which defines a reaction surface (50) remote from the cam face reaction surface (18) defined by the end wall. A seal (88) defines an expansible closed fluid reservoir (114) in combination with the body and includes a compliant diaphragm (90) carried about the outer circumferential portion (92) thereof by said body and a sleeve cap (52) insert-molded within the inner circumferential portion (110) of the diaphragm to provide a central portion (104) wear surface interposed, in application, between the lash adjuster reaction surface and the valve stem.
摘要翻译： 用于直接作用型的发动机气门齿轮的液压间隙调节挺杆（10）具有接触燃烧室阀杆（22）的端部（26）的挺杆的一端，另一端接触凸轮轴叶片 16）。 挺杆具有形成有管状壁部分（36）的主体（34），该管状壁部分（36）的一端由端壁（38）封闭，并在其中与端壁一体地形成并从其轴向延伸的管状毂（40）。 间隙调节器组件（44）滑动地容纳在管状毂中，其限定远离由端壁限定的凸轮面反应表面（18）的反作用表面（50）。 密封件（88）与主体组合地限定可膨胀的封闭流体储存器（114），并且包括由所述主体围绕其外圆周部分（92）承载的柔性隔膜（90）和嵌入成型的套筒盖 在隔膜的内圆周部分（110）内，以提供中间部分（104）的磨损表面，其应用在间隙调节器反应表面和阀杆之间。
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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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5.发明授权
公开(公告)号：US5758613A
公开(公告)日：1998-06-02
申请号：US792809
申请日：1997-01-30
CPC分类号： F01L1/2405 , F01L1/24 , Y10T74/2107
摘要： A hydraulic lash adjuster of the sealed leakdown type in which the plunger assembly (15) is received within a blind bore (13) defined by a body (11). The plunger assembly (15) includes upper (17) and lower (19) plunger elements, to define a low pressure chamber (21) and a high pressure chamber (23). In one embodiment, a dynamic seal member (27) is disposed between the lower plunger element (19) and the bore (13), such that leakdown flow must go from the high pressure chamber (23), past a check ball (53), to the low pressure chamber (21). In order to achieve a more consistent operation of the lash adjuster, the check ball (53) is normally biased toward an open position (FIG. 1) by a compression spring (69), but as flow from the chamber (23) to the chamber (21) increases, the spring force is overcome, and the check ball (53) seats in the desired manner.
摘要翻译： 密封泄漏型液压间隙调节器，其中柱塞组件（15）容纳在由主体（11）限定的盲孔（13）内。 柱塞组件（15）包括上部（17）和下部（19）柱塞元件，以限定低压室（21）和高压室（23）。 在一个实施例中，动力密封构件（27）设置在下部柱塞元件（19）和孔（13）之间，使得泄漏流必须从高压室（23）经过止回球（53） ，到低压室（21）。 为了实现间隙调节器的更一致的操作，止回球（53）通常通过压缩弹簧（69）朝向打开位置（图1）偏压，但是从腔室（23）流向 室（21）增加，克服弹簧力，并且止回球（53）以所需的方式安置。
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公开(公告)号：US4584976A
公开(公告)日：1986-04-29
申请号：US746708
申请日：1985-06-20
申请人： George A. Hillebrand
发明人： George A. Hillebrand
CPC分类号： F01L1/181 , F01L1/185 , F01L1/2405 , F01L1/255 , F01L1/08 , F01L1/182 , F01L1/462 , F01L2105/00
摘要： A reservoir height extender for a lash adjuster assembly (150) comprising an inverted hollow insert member (60) disposed in fluid reservoir chamber (42) within a plunger member (40) of assembly (150). Plunger member (40) is reciprocally moveable within a bore (38) of a body member (36) having a first fluid passageway (48) adapted to receive fluid from a fluid source and which communicates with a second fluid passageway (46) in plunger member (40) adapted to enable the fluid to flow into fluid reservoir chamber (42). Insert member (60) is displaced from a wall of plunger member (40) surrounding chamber (42) for a distance sufficient to provide a third fluid passageway (68) therebetween which communicates between passageway (46) and an opening (64) through insert member (60) that is higher than passageway (46) and which enables a substantial increase in the level of fluid within reservoir chamber (42).
摘要翻译： 一种用于间隙调节器组件（150）的储存器高度扩展器，包括设置在组件（150）的柱塞构件（40）内的流体储存室（42）中的倒置的中空插入构件（60）。 柱塞构件（40）可在主体构件（36）的孔（38）内往复运动，该主体构件具有适于从流体源接收流体的第一流体通道（48），并且其与柱塞中的第二流体通道（46）连通 构件（40）适于使流体流入流体储存室（42）。 插入构件（60）从围绕室（42）的柱塞构件（40）的壁移位足够的距离，以提供其间的第三流体通道（68），其间通过插入物在通道（46）和开口（64）之间连通 构件（60），其高于通道（46），并且能够显着增加储存室（42）内的流体水平。
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公开(公告)号：US4254749A
公开(公告)日：1981-03-10
申请号：US23063
申请日：1979-03-23
CPC分类号： F02M57/023 , F01L1/2422 , F02M57/021 , F02M57/024 , F02M59/30
摘要： A hydraulic advance device for selectively transmitting applied forces to a fuel injector of an internal combustion engine. The device is operative to select a normal or advanced timing of the fuel injection. An outer cylindrical body (66) is mounted in the upper end of a fuel injector adapter. An inner body (108) is slidably received in an outer body and a reaction member (103) and pressure responsive plunger (117) are slidably received in a bore formed in the inner body. The plunger and the bore cooperate to define a fluid chamber (128). A one-way valve (132) in the chamber permits fluid above a predetermined pressure applied during the advanced stage of the fuel injection cycle to enter the chamber which prevents movement of the plunger relative to the inner body member. At pressures below a predetermined value and during the normal phase of the fuel injection cycle, the plunger and reaction member first move relative to the inner body a predetermined amount during which time no movement is transferred to the inner body thus delaying fuel injection relative to advance phase fuel injection.
摘要翻译： 一种用于选择性地将施加的力传递到内燃机的燃料喷射器的液压前进装置。 该装置用于选择燃料喷射的正常或高级定时。 外筒体（66）安装在燃油喷射器适配器的上端。 内体（108）可滑动地容纳在外体中，反应构件（103）和压力响应柱塞（117）可滑动地容纳在形成在内体中的孔中。 柱塞和孔配合以限定流体室（128）。 腔室中的单向阀（132）允许在燃料喷射循环的高级阶段期间施加的预定压力以上的流体进入腔室，从而防止柱塞相对于内部主体构件的运动。 在低于预定值的压力下，并且在燃料喷射循环的正常阶段期间，柱塞和反作用构件首先相对于内部主体移动预定量，在此期间，运动不会传递到内部体，从而延迟燃料喷射相对于前进 相燃料喷射。
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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：US4448155A
公开(公告)日：1984-05-15
申请号：US384450
申请日：1982-06-03
IPC分类号： F01L1/14
CPC分类号： F01L1/14 , F01L2107/00
摘要： A guide (28) is provided for retrofitting an existing internal combustion engine block (10) with roller cam followers (24 and 26) in place of conventional barrel-type lifters, without modification of the block itself. The guide includes a guide bar (64), keyed to the upper body (38) of each follower to allow limited rotational freedom thereof and a resilient C-shaped spring clip (70) which simultaneously bears downwardly on the upper surface of the guide bar and upwardly on the lower surface (40) of an engine block boss (18) defining follower receiving bores (20 and 22). Annular spacers (72) are provided, if required, to displace the guide bar upwardly from the upper surface (52) of the boss. An upper leg (76) of the spring clip wraps around the guide bar for retention therewith and a lower leg (78) of the spring clip is necked at a point (86) intermediate adjacent cylindrical portions (30 and 32) of the follower boss for retention therebetween.
摘要翻译： 提供了一种引导件（28），用于代替常规的桶式升降机，用辊式凸轮从动件（24和26）来改装现有的内燃机缸体（10），而不改变块本身。 引导件包括导向杆（64），其被键接到每个从动件的上部主体（38）以允许其有限的旋转自由度，以及弹性C形弹簧夹（70），其同时向下在导杆的上表面上 并且向上定位在限定从动件接收孔（20和22）的发动机块凸台（18）的下表面（40）上。 如果需要，提供环形间隔件（72）以使引导杆从凸台的上表面（52）向上移位。 弹簧夹的上腿（76）围绕引导杆卷绕以保持其，并且弹簧夹的小腿（78）在从动凸台的相邻圆柱形部分（30和32）的中间的点（86）处颈缩， 以保持它们之间。
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公开(公告)号：US4419977A
公开(公告)日：1983-12-13
申请号：US379401
申请日：1982-05-18
申请人： George A. Hillebrand
发明人： George A. Hillebrand
CPC分类号： F02M57/021 , F02M57/023 , F02M59/30
摘要： A hydraulic advance device for selectively transmitting applied forces to a fuel injector of an internal combustion engine. The device is operative to select a normal or advanced timing of the fuel injection. An outer cylindrical body (66) is mounted in the upper end of a fuel injector adapter. An inner body (108) is slidably received in an outer body and a pressure responsive plunger (104) is slidably received in a bore formed in the inner body and defines in cooperation therewith a fluid chamber (128). A one-way valve (132) in the chamber permits fluid above a predetermined pressure applied during the advanced stage of the fuel injection cycle to enter the chamber which prevents movement of the plunger relative to the inner body member. At pressures below a predetermined value and during the normal phase of the fuel injection cycle, the plunger first moves relative to the inner body a predetermined amount during which time no movement is transferred to the inner body thus delaying fuel injection relative to advance phase fuel injection.
摘要翻译： 一种用于选择性地将施加的力传递到内燃机的燃料喷射器的液压前进装置。 该装置用于选择燃料喷射的正常或高级定时。 外筒体（66）安装在燃油喷射器适配器的上端。 内部主体（108）可滑动地容纳在外部主体中，并且压力响应柱塞（104）可滑动地容纳在形成于内部主体中的孔中，并与其配合限定流体室（128）。 腔室中的单向阀（132）允许在燃料喷射循环的高级阶段期间施加的预定压力以上的流体进入腔室，从而防止柱塞相对于内部主体构件的运动。 在低于预定值的压力下，并且在燃料喷射循环的正常阶段期间，柱塞首先相对于内部主体移动预定量，在此期间没有移动传递到内部主体，从而相对于提前阶段燃料喷射延迟燃料喷射 。
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