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公开(公告)号：US4949803A
公开(公告)日：1990-08-21
申请号：US364419
申请日：1989-06-12
IPC分类号： B62D7/15
CPC分类号： B62D7/1572
摘要： A closed hydraulic system (22) is provided for transmitting steering movement to a rear wheel steering assembly (16) in response to steering movement of a front wheel steering assembly (14). The front wheel steering assembly is controlled by a steering wheel (18) and a power steering assembly (20). The closed hydraulic system (22) includes a pump assembly (56) and an actuator assembly (58) connected together by conduits (60,62) to define closed fluid flow branches (164,166) for moving a piston (112) in the actuator assembly in response to movement of a piston (78) in the pump assembly. Movement of the actuator piston is transmitted to the rear wheel steering assembly via first and second cam assemblies (122,124) which effect same direction rear wheel steering for rather small front wheel steering angles and which effect opposite direction rear wheel steering for greater front wheel steering angles. Pump assembly (56) includes first and second neutral valves (92,94) for intercommunicating opposite sides of the pump piston (78) with a chamber ( 83) when the piston is in a neutral position. System (22) also includes a reservoir (68) disposed above the normal fluid level of the system and exposed to atmospheric pressure.
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公开(公告)号：US4966246A
公开(公告)日：1990-10-30
申请号：US364413
申请日：1989-06-12
CPC分类号： B62D7/146 , B62D7/1563
摘要： A closed hydraulic system (22) is provided for transmitting steering movement to a rear wheel steering assembly (16) in response to steering movement of a front wheel steering assembly (14). The front wheel steering assembly is controlled by a steering wheel (18) and a power steering assembly (20). The closed hydraulic system (22) includes a pump assembly (56) and an actuator assembly (58) connected together by conduits (60,62) to define closed fluid flow branches (164,166) for moving a piston (112) in the actuator assembly in response to movement of a piston (78) in the pump assembly. Movement of the actuator piston is transmitted to the rear wheel steering assembly via first and second cam assemblies (122,124) which effect same direction rear wheel steering for rather small front wheel steering angles and which effect opposite direction rear wheel steering for greater front wheel steering angles. Pump assembly (56) includes first and second neutral valves (92,94) for intercommunicating opposite sides of the pump piston (78) with a chamber ( 83) when the piston is in a neutral position. System (22) also includes a reservoir (68) disposed above the normal fluid level of the system and exposed to atmospheric pressure.
摘要翻译： 提供一个闭合的液压系统（22），用于响应于前轮转向组件（14）的转向运动而将转向运动传递到后轮转向组件（16）。 前轮转向组件由方向盘（18）和动力转向组件（20）控制。 封闭的液压系统（22）包括泵组件（56）和通过管道（60,62）连接在一起的致动器组件（58），以限定用于移动致动器组件中的活塞（112）的封闭流体流动分支（164,166） 响应于泵组件中的活塞（78）的运动。 致动器活塞的运动经由第一和第二凸轮组件（122,124）传递到后轮转向组件，该凸轮组件（122,124）对相当小的前轮转向角产生相同方向的后轮转向，并且对于更大的前轮转向角 。 泵组件（56）包括第一和第二中性阀（92,94），用于当活塞处于中立位置时将泵活塞（78）的相对侧与腔室（83）相互连通。 系统（22）还包括设置在系统的正常流体水平面上并暴露于大气压力的储存器（68）。
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公开(公告)号：US5911643A
公开(公告)日：1999-06-15
申请号：US2526
申请日：1998-01-02
申请人： David P. Godlew , David M. Preston
发明人： David P. Godlew , David M. Preston
IPC分类号： F16H48/30
CPC分类号： F16H48/22 , F16H48/08 , F16H48/295 , F16H48/30 , F16H48/34 , F16H2048/204 , F16H2048/346 , F16H48/40
摘要： A differential gear mechanism including a clutch assembly (35) for retarding rotation between a side gear (23) and a gear case (11,45), and a ball ramp actuator for actuating the clutch assembly. The ball ramp actuator includes an inner actuating plate (49) within the gear case, and an outer actuating plate (51) disposed external to the gear case. In order to initiate ramp up of the ball ramp device, an electromagnetic coil assembly (67) includes an annular coil (75) which is disposed in face-to-face relationship with the outer actuating plate (51). An annular drive plate (83) is disposed between the coil (75) and the outer actuating plate (51), and is drawn into frictional engagement with a layer of friction material (81) upon energization of the coil. The drive plate (83) is connected by pins (89) to be axially movable relative to the outer actuating plate, but fixed to rotate therewith, such that frictional engagement of the drive plate (83) retards rotation of the outer actuating plate (51).
摘要翻译： 一种差速齿轮机构，包括用于延迟侧齿轮（23）和齿轮箱（11,45）之间的旋转的离合器组件（35）和用于致动离合器组件的滚珠坡道致动器。 滚珠坡道致动器包括在齿轮箱内的内部致动板（49）和设置在齿轮箱外部的外部致动板（51）。 为了启动滚珠坡道装置的升高，电磁线圈组件（67）包括与外部致动板（51）面对面地设置的环形线圈（75）。 环形驱动板（83）设置在线圈（75）和外致动板（51）之间，并且在线圈通电时被拉动成与一层摩擦材料（81）摩擦接合。 驱动板（83）通过销（89）连接成相对于外部致动板可轴向移动，但是被固定以随其一起旋转，使得驱动板（83）的摩擦接合阻止外部致动板（51）的旋转 ）。
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公开(公告)号：US5129633A
公开(公告)日：1992-07-14
申请号：US700343
申请日：1991-05-07
IPC分类号： B60G11/04 , B60G11/36 , B60G17/015 , B60G17/027
CPC分类号： B60G17/0152 , B60G11/04 , B60G11/36 , B60G2200/32 , B60G2202/11 , B60G2202/112 , B60G2202/12 , B60G2202/413 , B60G2204/46 , B60G2204/82 , B60G2400/252 , B60G2500/20
摘要： Selectively engagable auxiliary leaf springs (38 or 138) for vertically supporting a vehicle chassis (32) on an axle assembly (22 or 102) in parallel with main suspension springs (34 or 114). In three of the disclosed embodiments, both ends (38b,38a) of the auxiliary springs (38) are pivotally attached. In two other embodiments, one end (138a) of the auxiliary leaf springs (142) is pivotally attached and the other end (138b) is rigidly affixed in cantilever fashion. Actuators (56, 139 or 159) are employed to selectively enable or increase load supporting of the auxiliary leaf springs.
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25.发明授权
公开(公告)号：US4830128A
公开(公告)日：1989-05-16
申请号：US138763
申请日：1987-12-28
IPC分类号： B62D7/15
CPC分类号： B62D7/1563
摘要： A closed hydraulic system (22) is provided for transmitting steering movement to a rear wheel steering assembly (16) in response to steering movement of a front wheel steering assembly (14). The front wheel steering assembly is controlled by a steering wheel (18) and a power steering assembly (20). The closed hydraulic system (22) includes a pump assembly (44) and an actuator assembly (46) connected together by conduits (48,50) to define closed fluid flow branches or fluid links (49,51) for moving a piston (94) in the actuator assembly in response to movement of a piston (72) in the pump assembly. Movement of the actuator piston is transmitted to the rear wheel steering assembly via a cam assembly (92) which effects same direction rear wheel steering for rather small front wheel steering angles and which effects opposite direction rear wheel steering for greater front wheel steering angles. System (22) may include a reservoir assembly (60) including a piston assembly (116) for maintaining a constant positive pressure in both branches, a dash pot (124) for preventing sudden steering angle changes of the rear wheels in the event of rapid fluid loss in either branch, and relief valve assemblies (126,126') for limiting the maximum pressure differential between the branches.
摘要翻译： 提供一个闭合的液压系统（22），用于响应于前轮转向组件（14）的转向运动而将转向运动传递到后轮转向组件（16）。 前轮转向组件由方向盘（18）和动力转向组件（20）控制。 封闭的液压系统（22）包括泵组件（44）和通过管道（48,50）连接在一起的致动器组件（46），以限定用于移动活塞（94）的闭合的流体流动分支或流体连杆（49,51） ）响应于泵组件中的活塞（72）的运动而在致动器组件中。 致动器活塞的移动通过凸轮组件（92）传递到后轮转向组件，凸轮组件（92）对于相当小的前轮转向角执行相同的方向后轮转向，并且对于更大的前轮转向角而对后轮转向产生相反的方向。 系统（22）可以包括储存器组件（60），其包括用于在两个分支中保持恒定正压的活塞组件（116），用于防止在快速的情况下后轮的突然转向角变化的仪表板（124） 任何分支中的流体损失和用于限制分支之间的最大压力差的安全阀组件（126,126'）。
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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：US06694934B1
公开(公告)日：2004-02-24
申请号：US10302019
申请日：2002-11-22
IPC分类号： F01L134
CPC分类号： F01L13/0026 , F01L13/0005 , F01L2103/00 , F01L2103/01 , F01L2800/13
摘要： A variable valve actuation assembly (41) to be mounted about a camshaft (43) including a concentric portion (47) and an eccentric portion (49) which orbits the axis of rotation (A1) of the camshaft and defines an axis (A2). The assembly (41) includes a secondary cam member (51) surrounding the concentric portion (47) and including a cam surface (59,59L). The assembly (41) also includes an arm assembly (61) which surrounds the eccentric portion (49), and defines a longitudinal axis (A3) perpendicular to, and intersecting the axis (A2). The arm assembly (61) can pivot about a pin (71), and at the opposite axial end is pivotally connected to the secondary cam member (51) by means of a pin (75). Rotation of the camshaft (43) causes the arm assembly (61) to pivot about the pin (71) in one direction, rotating the cam member (51) to lift the valve (17), then pivot in the other direction, rotating the cam member (51) in the opposite direction.
摘要翻译： 围绕凸轮轴（43）安装的可变气门致动组件（41），该凸轮轴包括同心部分（47）和绕凸轮轴的旋转轴线（A1）运动并限定轴线（A2）的偏心部分（49） 。 组件（41）包括围绕同心部分（47）并且包括凸轮表面（59,59L）的次级凸轮构件（51）。 组件（41）还包括围绕偏心部分（49）的臂组件（61），并且限定垂直于轴线（A2）并与其相交的纵向轴线（A3）。 臂组件（61）能够围绕销（71）枢转，并且在相对的轴向端部通过销（75）枢转地连接到次级凸轮构件（51）。 凸轮轴（43）的旋转使得臂组件（61）沿着一个方向围绕销（71）枢转，使凸轮构件（51）旋转以提升阀（17），然后沿另一方向枢转，使 凸轮构件（51）沿相反方向。
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公开(公告)号：US06354265B1
公开(公告)日：2002-03-12
申请号：US09693666
申请日：2000-10-20
IPC分类号： F02D1304
CPC分类号： F01L13/065 , F01L1/08 , F01L1/181 , F01L2105/00 , F01L2760/004
摘要： A compression release engine brake assembly adapted for use with an internal combustion engine, and an exhaust valve (29) operable to open in a normal exhaust lift event (FIG. 9) and in a brake lift event (FIG. 15). The engine includes an exhaust valve actuating mechanism (23,31,37) for imparting reciprocal movement to said exhaust valve (29) in response to rotation of a cam shaft (11) including a cam profile (13), a normal lift portion (17) and a brake lift portion (19). The assembly includes a lost motion device (75) moveable between a normal lost motion condition (FIG. 4) and an actuated condition (FIG. 14) in response to movement of an input member (91). An energy storage spring (117) is operable, after being compressed to an energy storage condition (FIG. 12) to be able to bias the input member (91) toward a second position, effecting the actuated condition of the lost motion device (75). A latching mechanism (99,103-113,129,131) is operable to first displace the energy storage spring (117) to a compressed condition, and then release it just before the cam follower (21) traverses the brake lift portion (19), in response to the pivotal movement of the rocker arm assembly (23) which comprises part of the exhaust valve actuating mechanism.
摘要翻译： 适于与内燃机一起使用的压缩释放发动机制动组件和可操作以在正常排气提升事件（图9）和制动器提升事件（图15）中打开的排气门）。 发动机包括排气门致动机构（23,31,37），用于响应于包括凸轮轮廓（13），普通提升部分（13）的凸轮轴（11）的旋转而向所述排气阀（29）进行往复运动， 17）和制动提升部（19）。 组件包括响应于输入构件（91）的移动而在正常的运动状态（图4）和致动状态（图14）之间移动的空动装置（75）。 能量储存弹簧（117）在被压缩到能量储存条件（图12）之后可操作以能够将输入构件（91）偏压到第二位置，从而实现空转装置（75）的致动状态 ）。 闭锁机构（99,103-113,129,131）可操作以首先将储能弹簧（117）移动到压缩状态，然后在凸轮从动件（21）横过制动器提升部分（19）之前，响应于 摇臂组件（23）的枢转运动，其包括排气门致动机构的一部分。
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公开(公告)号：US5839545A
公开(公告)日：1998-11-24
申请号：US863651
申请日：1997-05-27
申请人： David M. Preston , G. Clark Fortune
发明人： David M. Preston , G. Clark Fortune
CPC分类号： F16D66/024
摘要： A brake wear sensor and a mounting clip for retaining the brake wear sensor to a brake table. A housing assembly contains a conductive wire to be worn as the brake pad wears a predetermined amount. The housing assembly partially passes through an opening slot in a brake table. A spring clip is provided to positively secured to the housing assembly to the brake table. The spring clip has clip arms which deform inwardly to pass through the opening slot and spring back to prevent reverse passage. The spring clip is also provided with preload springs to force the housing assembly against the brake table. When assembled, the housing assembly and spring clip are positively secured to the brake table.
摘要翻译： 制动磨损传感器和用于将制动磨损传感器保持在制动台上的安装夹。 壳体组件包含当制动衬垫磨损预定量时待磨损的导线。 壳体组件部分地穿过制动台中的开口槽。 弹簧夹被设置成主动地固定到壳体组件到制动台。 弹簧夹具有向内变形以穿过开口槽并弹回以防止反向通过的夹臂。 弹簧夹还设置有预压弹簧，以迫使壳体组件抵靠制动台。 组装时，壳体组件和弹簧夹可靠地固定在制动台上。
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公开(公告)号：US5690066A
公开(公告)日：1997-11-25
申请号：US723078
申请日：1996-09-30
申请人： Keith Hampton , David M. Preston
发明人： Keith Hampton , David M. Preston
CPC分类号： F02D13/06 , F01L1/185 , F01L13/0005 , F01L2820/031 , Y02T10/18
摘要： A latchable rocker arm is actuated with a solenoid device having a stator and an armature where the armature is connected to an output link which is connected to a first connecting link and a second connecting link which are disposed to form a "knee" linkage where in the fully actuated state the first connecting link and the second connecting link are in substantial axial alignment. A pivoted output link is connected to the first connecting link for contacting and actuating the latchable rocker arm.
摘要翻译： 可锁定的摇臂由具有定子和衔铁的螺线管装置致动，其中电枢连接到输出连杆，输出连杆连接到第一连接连杆和第二连接连杆，第二连接连杆被设置成形成“膝盖” 完全致动状态，第一连接连杆和第二连接连杆处于基本轴向对准。 枢转输出连杆连接到第一连接连杆，用于接触和致动可锁定的摇臂。
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