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公开(公告)号：US4768934A
公开(公告)日：1988-09-06
申请号：US799760
申请日：1985-11-18
CPC分类号： F04C29/122 , F04C18/16
摘要： An improved rotory positive displacement blower (10) of the Roots-type with reduced airborne noise and superior efficiency. The blower includes a housing (12) defining generally cylindrical chambers (32, 34) having cylindrical wall surfaces (20a, 20b) and containing meshed lobed rotors (14, 16) having the lobes (14a, 14b, 14c, 16a, 16b, 16c) thereon formed with an end-to-end helical twist according to the relation 360.degree./2n, where n equals the number of lobes per rotor. Preferably, n equals three. The blower housing (12) also defines inlet and outlet ports (36, 38) and the intersections of wall surfaces (20a, 20b) define a cusp (20d) associated with the inlet port (36) and a cusp (20e) associated with outlet port (38). The inlet and outlet port openings are skewed in opposite directions to increase the time the top lands of the lobes are in sealing relation with cylindrical walls (20a, 20b) of chambers ( 32, 34). Transverse boundaries (20g, 20i) of the inlet port are traversed by the lobes prior to traversal of the inlet port cusp (20d) by trailing ends (14h, 16h) of the lobes. In a similar manner, the transverse boundaries (20n, 20r) of the outlet port are traversed by the lobes subsequent to traversal of the outlet port cusp (20e) by leading ends (14g, 16g) of the lobes. Elongated backflow slots (40, 42) having a length/width ratio of at least four are disposed on opposite sides of the outlet port cusp and substantially parallel to the traversing lobes of the associated rotor. The backflow slots are traversed by the lobes prior to traversal of cusp (20e) and outlet port boundaries (20n, 20r) by the lobes.
摘要翻译： 一种改进的罗茨式旋转式容积式鼓风机（10），具有降低的空气噪声和卓越的效率。 鼓风机包括限定具有圆柱形壁表面（20a，20b）的大致圆柱形的腔室（32,34）的壳体（12），并且包含具有凸角（14a，14b，14c，16a，16b， 16c），其根据360°/ 2n的关系形成为端对端螺旋扭转，其中n等于每个转子的叶数。 优选地，n等于3。 鼓风机壳体（12）还限定入口和出口端口（36,38），并且壁表面（20a，20b）的交叉点限定了与入口端口（36）相关联的尖端（20d）和与 出口（38）。 入口和出口开口沿相反方向倾斜，以增加叶片的顶部平台与腔室（32,34）的圆柱形壁（20a，20b）密封的时间。 在通过叶片的尾端（14h，16h）穿过入口端口尖端（20d）之前，入口端口的横向边界（20g，20i）由叶片穿过。 以类似的方式，出口端口的横向边界（20n，20r）在叶片的前端（14g，16g）穿过出口端口尖端（20e）之后被叶片横穿。 具有长度/宽度比至少为4的细长回流槽（40,42）设置在出口端口尖端的相对侧上并且基本上平行于相关转子的横向凸角。 在叶片穿过尖端（20e）和出口端口边界（20n，20r）之前，回流槽由叶片穿过。
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公开(公告)号：US4569646A
公开(公告)日：1986-02-11
申请号：US647074
申请日：1984-09-04
CPC分类号： F04C18/088 , F04C18/16
摘要： An improved supercharger or blower (10) of the Roots-type with reduced airborne noise and improved efficiency. The blower includes a housing (12) defining generally cylindrical chambers (32, 34) containing meshed lobed rotors (14, 16) having the lobes (14a, 14b, 14c, 16a, 16b, 16c) thereon formed with an end-to-end helical twist according to the relation 360.degree./2n, where n equals the number of lobes per rotor. The chambers include cylindrical wall surfaces 20a, 20b and end wall surfaces 20c, 24a which sealing cooperate with the rotor lobes and ends. Blower housing (12) also defines inlet and outlet ports (36, 38). The inlet port includes a longitudinal extent defined by housing wall surfaces (20f, 20f) and a transverse extent defined by housing wall surfaces 20g, 20i. Transverse wall surfaces (20g, 20i) are disposed substantially parallel to the associated rotor lobes. The outlet port includes a longitudinal extent defined by housing surfaces (20m, 20r) and a transverse extent defined by housing surfaces (20p, 20s). Spaces (32a, 34a) between adjacent lobes of each rotor transfer volumes of low-pressure inlet port air to relatively high-pressure outlet port air. Associated with the outlet port are first and second expanding orifices (42, 44) disposed on transversely opposite sides of the outlet port for controlling the rate of backflow into the transfer volumes and operative at predetermined rotor speed and pressure differential relationships to maintain a substantially constant backflow rate into each of the transfer volumes. Pairs of arcuate channels 46, 48 and 58, 60 are respectively formed in end walls 20c, 24a to vent trapped volumes .SIGMA.TV.sub.1 and .SIGMA.TV.sub.2 defined by meshing lobes. Channels 46, 48 prevent compression of air in trapped volumes .SIGMA.TV.sub.1 and channels .SIGMA.TV.sub.2 prevent vacuum tending expansion of trapped volumes .SIGMA.TV.sub.2.
摘要翻译： 改进的Roots型增压器或鼓风机（10），降低了空气噪声，提高了效率。 鼓风机包括限定大体上圆柱形的腔室（32,34）的壳体（32,34），该腔室（32,34）包含有叶片（14a，14b，14c，16a，16b，16c）的网状叶片转子（14,16） 根据360°/ 2n的关系，结束螺旋扭转，其中n等于每个转子的叶数。 这些腔室包括圆柱形壁表面20a，20b和端壁表面20c，24a，这些密封件与转子叶片和端部配合。 鼓风机壳体（12）还限定了入口和出口端口（36,38）。 入口端口包括由壳体壁表面（20f，20f）限定的纵向范围和由壳体壁表面20g，20i限定的横向范围。 横壁面（20g，20i）基本上平行于相关联的转子叶片设置。 出口包括由壳体表面（20m，20r）限定的纵向范围和由壳体表面（20p，20s）限定的横向范围。 每个转子的相邻凸角之间的空间（32a，34a）将低压入口空气的体积传递到相对高压的出口空气。 与出口相关联的第一和第二扩张孔（42,44）设置在出口端口的横向相对侧上，用于控制回流到传送体积的速率并且以预定的转子速度和压差差关系操作，以保持基本恒定 每个传输卷的回流速率。 成对的弓形通道46,48和58,60分别形成在端壁20c，24a中，以排出由啮合波瓣限定的被捕获的体积SIGMA TV1和SIGMA TV2。 通道46,48防止被捕获空气中的空气压缩。SIGMA TV1和通道SIGMA TV2可防止真空吸收SIMMA TV2的捕获量扩大。
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公开(公告)号：US4203397A
公开(公告)日：1980-05-20
申请号：US915476
申请日：1978-06-14
CPC分类号： F01L1/267 , F01L1/2405 , F01L2820/031
摘要： An engine valve control mechanism for varying the amount of opening and/or timing of a cylinder valve in a valve gear train of a multi-cylinder, internal combustion engine having an overhead camshaft which actuates the valve via a rocker arm pivotally bridged between the valve stem and a hydraulic lash adjuster. In one engine embodiment of the invention, the valve gear train portion for each intake valve is provided with a valve control mechanism of the invention by providing a camshaft having a high lift lobe and two low lift lobes for actuating the valve and by providing a valve rocker arm including a rigid link defining a first cam follower for following the low lift lobes and a second cam follower pivotally connected to the rigid link for following the high lift lobe. A latch, carried by the rigid link, is operative in a first position to prevent pivotal movement of the second follower relative to the rigid link, whereby the valve is actuated by the high lift lobe, and operative in a second position to allow such pivotal movement, whereby the valve is actuated by the low lift lobes. The latch is operated by a solenoid supported by the lash adjuster. In a second embodiment of the invention, the low lift lobes are removed, whereby the valves are disabled when the latch is in the second position.
摘要翻译： 一种发动机气门控制机构，用于改变具有顶置凸轮轴的多气缸内燃机的阀齿轮系中的气缸阀的打开和/或定时的量，该顶置凸轮轴通过枢转地桥接在阀之间的摇臂来致动阀 阀杆和液压间隙调节器。 在本发明的一个发动机实施例中，用于每个进气门的阀齿轮系部分通过提供具有高提升凸轮的凸轮轴和用于致动阀的两个低升力凸轮提供本发明的阀控制机构，并且通过提供阀 摇臂包括限定用于跟随低升力凸起的第一凸轮从动件的刚性连杆和枢转地连接到刚性连杆的第二凸轮从动件，用于跟随高升力凸起。 由刚性连杆承载的闩锁在第一位置操作，以防止第二从动件相对于刚性连杆的枢转运动，由此阀由高升降杆致动，并且在第二位置操作以允许这种枢转 运动，由此阀由低升力凸起致动。 闩锁由间隙调节器支撑的螺线管操作。 在本发明的第二实施例中，移除了低升力凸角，由此当闩锁处于第二位置时，阀被禁用。
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公开(公告)号：US4704995A
公开(公告)日：1987-11-10
申请号：US894289
申请日：1985-09-27
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：US4221201A
公开(公告)日：1980-09-09
申请号：US671764
申请日：1976-03-30
CPC分类号： F02D13/06 , F01L13/0005 , F01L2820/031 , F02B1/04 , Y02T10/18
摘要： An improved valve selector assembly for selectively enabling and disabling the intake and exhaust valves of one cylinder of an internal combustion engine of the type having individually pivoted rocker arms for opening and closing the valves. Each selector assembly includes two valve disablers (one associated with the intake valve rocker arm and one associated with the exhaust valve rocker arm), and control means for orienting and switching the disablers between valve enabling and valve disabling. Each valve disabler is a spring capsule subassembly of the selector assembly and includes a slideable sleeve defining a fulcrum at one end, a cap slideably connected to the other end of the sleeve, and a spring reacting against the cap and biasing the fulcrum into engagement with its respective rocker arm. The control means includes a rotatable latch plate associated with each valve disabler, a solenoid actuator, linkage means connecting the latch plates together and to the actuator, a fixed stop orienting one disabler with respect to its associated latch plate, an adjustable stop orienting the other disabler with respect to its latch plate, and torsion springs for biasing the latch plates to their valve enabling position.
摘要翻译： 一种改进的阀选择器组件，用于选择性地启用和禁用具有用于打开和关闭阀的单独枢转的摇臂的类型的内燃机的一个气缸的进气门和排气门。 每个选择器组件包括两个排气阀（一个与进气门摇臂相连，一个与排气门摇臂相连），以及控制装置，用于在阀启用和阀门禁止之间定向和切换排气阀。 每个阀门脱扣器是选择器组件的弹簧胶囊子组件，并且包括在一端限定支点的可滑动套筒，可滑动地连接到套筒另一端的盖子，以及弹簧抵靠盖子并将支点偏置成与 其各自的摇臂。 控制装置包括与每个阀门相关联的可旋转的闩锁板，螺线管致动器，将闩锁板连接到致动器的联动装置，将止动器相对于其相关联的闩锁板定向的固定止动件，将另一个 相对于其闩锁板而言，以及用于将闩锁板偏压到其使能位置的扭转弹簧。
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6.发明授权Supercharger assembly and rotor phasing fixture and method of partially assembling 失效增压器总成及转子定相夹具及部分组装方法
公开(公告)号：US4638570A
公开(公告)日：1987-01-27
申请号：US775556
申请日：1985-09-13
CPC分类号： F04C18/126 , F04C29/0042 , F04C29/005
摘要： An improved Roots-type blower (10) and fixture (200) for timing rotors (20, 22) and timing gears (36, 38) of the blower during assembly. The blower includes a housing (12) defining generally cylindrical chambers containing the rotors having meshed, helical lobes (20c, 22c). The rotors are fixed to stepped diameter shafts (24, 26) pressed into stepped bores (20d, 22d) in the rotors. Straight splines on the shafts respectively form mating splines in the rotor bores and in the hub bore of timing gear (36). In a modified form of the blower, the straight splines form matting splines in both timing gears. The shafts are supported in the housing by fixed ball bearings (28, 30) at one end of the rotors and at the other end by ball bearing (32, 34) resiliently biased by springs which preload all four bearings. The fixture includes a base (202) having two surfaces (202f, 240a) for supporting ends (20b, 22b) of the rotors. Surface ( 202f) is integral with the base and surface (240a) is rotatable relative to surface (202f). The surfaces transversely space the shafts and rotors the same parallel distance apart they will have after final assembly of the blower and provide support of pressing the gears on the shafts. An annular gear (246), fixed to surface (240a) and having the same pitch diameter of rotor lobes ( 20c, 22c), drives a rack gear (260) which in turn drives a dial indicator (282) providing a direct readout of backlash between the lobe in response to rotation of surface (240a). Springs (268, 272) resiliently bias the rack gear into the annular gear to remove backlash.
摘要翻译： 改进的罗茨式鼓风机（10）和用于组装期间鼓风机定时转子（20,22）和定时齿轮（36,38）的固定装置（200）。 鼓风机包括限定大体圆柱形的腔室（12），该腔室包含具有啮合的螺旋叶片（20c，22c）的转子。 转子固定在转子中被压入阶梯式孔（20d，22d）中的阶梯式直径轴（24,26）上。 轴上的直花键分别在转子孔和正时齿轮（36）的轮毂孔中形成配合花键。 在鼓风机的改进形式中，直花键在两个正时齿轮中形成消光花键。 轴通过固定的球轴承（28,30）在转子的一端支撑在壳体中，另一端通过预先装载所有四个轴承的弹簧弹性偏压的滚珠轴承（32,34）支承。 固定装置包括具有用于支撑转子的端部（20b，22b）的两个表面（202f，240a）的底座（202）。 表面（202f）与底座成一体，并且表面（240a）可相对于表面（202f）旋转。 表面使轴和转子横向间隔开与鼓风机最终组装之后相同的平行距离，并提供对轴上的齿轮进行推压的支撑。 固定到表面（240a）并且具有相同的直角的转子叶片（20c，22c）的环形齿轮（246）驱动齿条（260），齿条（260）又驱动转盘指示器（282），从而提供直接读出 响应于表面（240a）的旋转而在叶片之间产生间隙。 弹簧（268,272）将齿条弹性地偏置到环形齿轮中以消除齿隙。
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公开(公告)号：US4595349A
公开(公告)日：1986-06-17
申请号：US506073
申请日：1983-06-20
CPC分类号： F04C29/005 , F04C29/0042 , Y10T29/49329 , Y10T29/49833 , Y10T29/49945
摘要： An improved supercharger (10) of the Roots-type. The supercharger includes a three-piece housing assembly (14, 16, 18) defining generally cylindrical chambers containing two rotors (20, 22) having meshed lobes (20c, 22c) of modified involute profile which pump air from an unshown inlet to an outlet (56). The rotors are fixed to stepped diameter shafts (24, 26) pressed into centrally located through bores in the rotors. Straight splines (24e, 26e) on the shafts form mating splines in the rotor bores to prevent rotation of the shafts in the bores. Bearing assembly (28, 30) disposed at adjacent ends (20a, 22a) of the rotors support one end of the rotors in the housing and fix the axial position of that end of rotors relative to the housing. Bearing assemblies (32, 34) at the outer adjacent ends (20b, 22b) of the rotors support the other end of the rotors in the housing. The bearing assemblies (32, 34) include inner races pressed on shaft bosses (24b, 26b) and outer races slidably disposed in wear-resistant sleeves pressed into bores in housing end section 18. The outer races of bearing assemblies (32, 34) are biased away from bearing assemblies (29, 30) to remove radial and axial bearing play in all of the bearing assemblies.
摘要翻译： 一种改进的Roots型增压器（10）。 增压器包括三件式的壳体组件（14,16,18），其限定大体上圆柱形的腔室，其包含具有改进的渐开线轮廓的网状凸角（20c，22c）的两个转子（20,22），其将空气从未示出的入口泵送到出口 （56）。 转子被固定到通过转子中的孔的中心位置的阶梯形直径轴（24,26）。 轴上的直花键（24e，26e）在转子孔中形成配合花键，以防止轴在孔中旋转。 设置在转子的相邻端部（20a，22a）处的轴承组件（28,30）将转子的一端支撑在壳体中并固定转子的该端部相对于壳体的轴向位置。 在转子的外相邻端（20b，22b）处的轴承组件（32,34）支撑转子在壳体中的另一端。 轴承组件（32,34）包括压在轴凸台（24b，26b）上的内座圈和可滑动地设置在压入壳体端部部分18中的孔中的耐磨套筒中的外座圈。轴承组件（32,34）的外座圈 被偏压远离轴承组件（29,30）以去除所有轴承组件中的径向和轴向的滚动。
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公开(公告)号：US4221200A
公开(公告)日：1980-09-09
申请号：US610718
申请日：1975-09-05
CPC分类号： F01L13/0005 , F01L2820/031 , F02B1/04
摘要： An improved valve disabler control for a multi-cylinder engine having individually pivoted rocker arms and an intake and exhaust valve pair for each cylinder. Half of the valve pairs are provided with valve disablers having rotatable sleeves. Rotation of the sleeves counterclockwise (ccw) allows sliding movement of the rocker arm fulcrums, thereby disabling the valves; clockwise (cw) rotation of the sleeves prevents sliding movement of the fulcrums, thereby enabling the valves. The improved control includes a link and a spring interconnecting the disabler sleeves for each valve pair. Each link rotates the intake valve disabler sleeve ccw in response to ccw rotation of the exhaust valve disabling sleeve. A slot connecting each link to the intake valve disabler sleeve allows cw rotation of the exhaust valve disabler sleeve before cw rotation of the intake valve disabler sleeve. Each spring provides a cw biasing force to the sleeves. The biasing force increases in response to ccw rotation of the sleeves. Actuation of a second valve disabler pair in response to exhaust valve disabler actuation of a first valve disabler pair is provided by a spring-link and slot arrangement interconnecting the exhaust valve disabler sleeves of two valve pairs.
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公开(公告)号：US4556373A
公开(公告)日：1985-12-03
申请号：US647073
申请日：1984-09-04
CPC分类号： F04C18/088 , F04C18/16
摘要： An improved supercharger or blower (10) of the Roots-type with reduced airborne noise and improved efficiency. The blower includes a housing (12) defining generally cylindrical chambers (32, 34) containing meshed lobed rotors (14, 16) having the lobes (14a, 14b, 14c, 16a, 16b, 16c) thereon formed with an end-to-end helical twist according to the relation 360.degree./2n, where n equals the number of lobes per rotor. The chambers include cylindrical wall surfaces 20a, 20b and end wall surfaces 20c, 24a which sealing cooperate with top lands (14d, 14e, 14f, 16d, 16c, 16f) of the rotor lobes and end surface (14g, 14h, 16g, 16h) of the rotor ends. Spaces (32a, 34a) between adjacent lobes of each rotor transfer volumes of low-pressure air from an inlet port (36) defined by the housing (12) to relatively high-pressure air at an outlet port (38) defined by the housing. Associated with the outlet port are first and second expanding orifices (42, 44) disposed on transversely opposite sides of the outlet port for controlling the rate of backflow into the transfer volumes and operative at predetermined rotor speed and pressure differential relationships to maintain a substantially constant backflow rate into each of the transfer volumes. Pairs of recesses 46, 48 and 58, 60 are respectively formed in end walls 20c, 24a to damp pressure pulses in trapped volumes .SIGMA.TV.sub.1 and .SIGMA.TV.sub.2 defined by the meshing lobes. Recesses 46, 48 prevent compression of air in trapped volumes .SIGMA.TV.sub.1 and recesses 58, 60 prevent vacuum tending expansion of trapped volumes .SIGMA.TV.sub.2.
摘要翻译： 改进的Roots型增压器或鼓风机（10），降低了空气噪声，提高了效率。 鼓风机包括限定大体上圆柱形的腔室（32,34）的壳体（32,34），该腔室（32,34）包含有叶片（14a，14b，14c，16a，16b，16c）的网状叶片转子（14,16） 根据360°/ 2n的关系，结束螺旋扭转，其中n等于每个转子的叶数。 这些腔室包括圆柱形壁表面20a，20b和端壁表面20c，24a，其密封与转子叶片和端表面（14g，14h，16g，16h）的顶部平台（14d，14e，14f，16d，16c，16f） ）转子末端。 每个转子的相邻凸角之间的空间（32a，34a）将来自由壳体（12）限定的入口（36）的低压空气的体积转移到由壳体限定的出口（38）处的相对高压空气 。 与出口相关联的第一和第二扩张孔（42,44）设置在出口端口的横向相对侧上，用于控制回流到传送体积的速率并且以预定的转子速度和压差差关系操作，以保持基本恒定 每个传输卷的回流速率。 一对凹槽46,48和58,60分别形成在端壁20c，24a中，以阻塞由啮合波瓣限定的被捕获的体积SIGMA TV1和SIGMA TV2中的压力脉冲。 凹槽46,48防止被捕获的体积中的空气压缩，SIGMA TV1和凹槽58,60防止真空吸收捕获的体积SIGMA TV2的膨胀。
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