公开(公告)号：US5894904A

公开(公告)日：1999-04-20

申请号：US785245

申请日：1997-01-17

申请人： Takayuki Yakou ,  Koji Kuroda ,  Tetsuro Hamada ,  Kazunori Kobayashi ,  Masayuki Hikita

发明人： Takayuki Yakou ,  Koji Kuroda ,  Tetsuro Hamada ,  Kazunori Kobayashi ,  Masayuki Hikita

IPC分类号： B60K17/348 ,  B60K17/35 ,  B60K23/08 ,  B60K17/20

CPC分类号： B60K23/0808 ,  B60K17/3515 ,  B60W2520/10

摘要： A 4-wheel drive vehicle has a driving force control method in which a portion of a driving force for front wheels is distributed to rear wheels through clutches. In a 4-wheel drive state in which a driving force T.sub.p is distributed to rear wheels, for example, if the vehicle is turned leftwards to generate a difference W.sub.R -W.sub.L between left and right rear wheel speeds, it is ensured that a driving force T.sub.R distributed to the right rear wheel, which is an outer wheel during turning of the vehicle, is larger than a driving force T.sub.L distributed to the left rear wheel, which is an inner wheel during turning of the vehicle, thereby providing an enhancement in turning performance. As the difference W.sub.R -W.sub.L between the left and right rear wheel speeds is increased as a result of decreasing of the turning radius of the vehicle, the driving force T.sub.P (=T.sub.L +T.sub.R) distributed to the rear wheels is decreased to avoid an increase in travel resistance. Thus, it is possible to prevent the occurrence of problems such as a deterioration of specific fuel consumption, an abnormal sound generated in a drive system and an increase in the load of the drive system due to an increase in travel resistance during turning of the vehicle.

摘要翻译： 四轮驱动车辆具有驱动力控制方法，其中前轮的驱动力的一部分通过离合器分配到后轮。 在驱动力Tp分配给后轮的四轮驱动状态下，例如，如果车辆向左转动以在左后轮速度之间产生差WR-WL，则确保驱动力 分配到作为车辆转动时的外轮的右后轮的TR大于分配给作为车辆转向期间的内轮的左后轮的驱动力TL，从而提供转向增强 性能。 由于左右后轮速度之间的差WR-WL由于车辆的转弯半径的减小而增加，所以分配给后轮的驱动力TP（= TL + TR）减小，以避免增加 在旅行阻力。 因此，能够防止由于在车辆转动期间的行驶阻力的增加而导致比燃料消耗的劣化，驱动系统中产生的异常声音和驱动系统的负载的增加等问题的发生 。

公开(公告)号：US5735765A

公开(公告)日：1998-04-07

申请号：US587324

申请日：1996-01-12

申请人： Masao Teraoka ,  Satoshi Aiba ,  Hiraishi Kenji ,  Kazumitsu Ugajin ,  Shuhei Ono

发明人： Masao Teraoka ,  Satoshi Aiba ,  Hiraishi Kenji ,  Kazumitsu Ugajin ,  Shuhei Ono

IPC分类号： F16H48/285 ,  F16H57/04 ,  F16H1/45 ,  B60K17/20

CPC分类号： F16H48/285 ,  F16H57/0427 ,  F16H57/043 ,  F16H57/0483

摘要： A differential apparatus (7) comprises: a differential casing (21) rotated by an engine power; a plurality of pinion gears (65, 66) slidably housed in accommodation holes (63, 64) formed in the differential casing: a pair of side gears (35, 37) geared with each other via the pinion gears, two opposing end surfaces thereof being slid relative to other either directly or via a thrust washer (61); and a block member (47, 91, 97) interposed between two inner circumferential surfaces of the two side gears so as to center the side gears, respectively. In particular, at least one oil sump (77, 79; 95; 101) is formed between the block member and the side gears, to supply lubricant to sliding portions between the block member (47, 91, 97) and the side gears (35, 37) and between two opposing end surfaces of the two side gears, by a centrifugal force generated by the rotating differential casing. Further, it is preferable to further form at least one central oil passage (301, 303, 305) at the centering portion (365) so as to extend from an inner circumferential side to an outer circumferential side of the boss portions (357, 359) of the two side gears (353, 355). Further, it is also preferable to form at least two radial oil passages (881, 885; 977, 978) between inner wall surfaces of the differential casing (821, 921) and the side gears (835, 837; 939, 941), respectively in such a way that a radially inward end thereof communicates with the helical oil passage (877, 879; 979L, 979R) and a radially outward end thereof communicates with sliding portion between the side gear and the differential casing, respectively.

摘要翻译： 差速装置（7）包括：通过发动机动力旋转的差速器壳体（21）; 多个小齿轮（65,66），其可滑动地容纳在形成于所述差速器壳体的容纳孔（63,64）中：一对通过所述小齿轮彼此啮合的侧齿轮（35,37），其两个相对的端面 通过直接或通过止推垫圈（61）相对于其它的滑动; 以及插入在两个侧齿轮的两个内周面之间的分块构件（47,91,97），以分别对准侧齿轮。 特别地，在块体构件和侧齿轮之间形成至少一个油底壳（77,79; 95; 101），以将润滑剂供给到块构件（47,91,97）和侧齿轮（ 通过由旋转的差速器壳体产生的离心力，在两个侧齿轮的两个相对端面之间。 此外，优选在定心部（365）的至少一个中心油路（301,303,305）进一步形成为从凸部（357,359）的内周侧向外周侧 ）的两个侧齿轮（353,355）。 此外，还优选在差速器壳体（821,921）和侧齿轮（835,837; 939,941）的内壁表面之间形成至少两个径向油通路（881,885; 977,978） 分别使其径向向内的端部与螺旋形油道（877,879; 979L，979R）连通，并且其径向外端分别与侧齿轮和差速器壳体之间的滑动部分连通。

公开(公告)号：US5868643A

公开(公告)日：1999-02-09

申请号：US542934

申请日：1995-10-13

申请人： Masao Teraoka ,  Satoshi Aiba ,  Kenji Hiraishi

发明人： Masao Teraoka ,  Satoshi Aiba ,  Kenji Hiraishi

IPC分类号： F16H48/28 ,  F16H48/285 ,  F16H48/38 ,  F16H48/40 ,  F16H55/08 ,  B60K17/20

CPC分类号： F16H48/285 ,  F16H55/0806

摘要： A differential apparatus includes a differential casing, a pair of side gears and plural pairs of pinion gears. The pinion gears are accommodated in bores formed in the differential casing, respectively. Each pinion gear has an outer diameter smaller than that of a standard gear to be determined corresponding to predetermined gear specifications. With such a forming of the pinion gears, the tip circular thickness of each pinion gear is increased, so that surface pressure at respective tips of the pinion gears is reduced to improve the seizure resistant capability.

摘要翻译： 差速装置包括差速器壳体，一对侧齿轮和多对小齿轮。 小齿轮分别容纳在差速器壳体中形成的孔中。 每个小齿轮的外径小于相应于预定齿轮规格确定的标准齿轮的外径。 通过小齿轮的这种形成，每个小齿轮的尖端圆形厚度增加，从而减小了小齿轮的各个尖端处的表面压力，以提高抗咬合能力。

公开(公告)号：US5728025A

公开(公告)日：1998-03-17

申请号：US627351

申请日：1996-04-05

申请人： Yasuhiko Ishikawa ,  Sakuo Kurihara ,  Kazushige Nakane ,  Masao Teraoka ,  Takao Tashiro

发明人： Yasuhiko Ishikawa ,  Sakuo Kurihara ,  Kazushige Nakane ,  Masao Teraoka ,  Takao Tashiro

IPC分类号： B60K17/16 ,  F16H48/285 ,  F16H55/08 ,  F16H1/42 ,  B60K17/20

CPC分类号： F16H48/285

摘要： A differential apparatus includes a differential casing, a pair of helical side gears and a pair of helical pinion gears. The helical pinion gears are accommodated in bores formed in the differential casing, respectively. The long and short helical pinion gears have respective first gear portions meshing with the side gears, respectively, and second gear portions meshing with each other. Each gear tooth of the long pinion gear is so tapered that tip thickness of the gear tooth is gradually decreased from an axial end of the gear portion toward the other gear portion. Even if the long pinion gear is inclined by meshing reactive forces, it is possible to ensure sufficient tooth bearing areas at respective tooth faces of the pinion gears.

摘要翻译： 差速装置包括差速器壳体，一对螺旋侧齿轮和一对螺旋小齿轮。 螺旋小齿轮分别容纳在形成在差速器壳体中的孔中。 长短的螺旋小齿轮分别具有与侧齿轮啮合的相应的第一齿轮部分和彼此啮合的第二齿轮部分。 长齿轮的每个齿轮齿是锥形的，齿轮齿的尖端厚度从齿轮部分的轴向端向另一个齿轮部分逐渐减小。 即使长小齿轮通过啮合反作用力而倾斜，也可以确保小齿轮的相应齿面处的足够的齿承载区域。

公开(公告)号：US4679463A

公开(公告)日：1987-07-14

申请号：US770567

申请日：1985-08-29

申请人： Kiyotaka Ozaki ,  Shuuji Torii ,  Tomio Jindo ,  Takashi Imaseki

发明人： Kiyotaka Ozaki ,  Shuuji Torii ,  Tomio Jindo ,  Takashi Imaseki

IPC分类号： B60K23/04 ,  F16D48/12 ,  F16H48/08 ,  F16H48/20 ,  F16H48/22 ,  F16H48/30 ,  F16H48/32 ,  F16H48/34 ,  F16H48/40 ,  B60K17/20

CPC分类号： F16H48/22 ,  B60K23/04 ,  F16H48/08 ,  F16H48/30 ,  F16H48/34 ,  F16H2048/204 ,  F16H2200/2071 ,  F16H48/32 ,  F16H48/40 ,  Y10T477/606

摘要： A limited slip differential comprises a pair of friction clutches interposed between a pair of pressure rings and a differential casing. The friction clutches are urged toward an engaged condition to reduce a differential action when a pinion mate shaft having a pair of cam portions rotate to urge the pressure rings to move away from each other. The friction clutches are also urged toward the engaged condition to reduce the differential action when supplied with fluid pressure from a hydraulic system. The hydraulic system controls supply and discharge of fluid pressure to and from said friction clutches in view of running conditions of the vehicle, such as for example accelerated conditions.

摘要翻译： 限滑差速器包括插入在一对压力环和差速器壳体之间的一对摩擦离合器。 当具有一对凸轮部分的小齿轮配合轴旋转以促使压力环彼此离开时，摩擦离合器被推向接合状态以减小差速作用。 摩擦离合器也被推向接合状态，以在从液压系统供给流体压力时减小差速作用。 考虑到车辆的运行条件，例如加速条件，液压系统控制来往于所述摩擦离合器的流体压力的供给和排出。

公开(公告)号：US5713812A

公开(公告)日：1998-02-03

申请号：US707057

申请日：1996-09-03

申请人： Kenji Hiraishi ,  Masahiko Asahi

发明人： Kenji Hiraishi ,  Masahiko Asahi

IPC分类号： F16H48/22 ,  F16H48/28 ,  F16H48/285 ,  F16H48/38 ,  F16H48/40 ,  F16H1/42 ,  B60K17/20

CPC分类号： F16H48/285

摘要： This differential apparatus has a differential casing rotated by an engine, side gears on an output side arranged within the differential casing and spline-connected to output shafts, pinion gears for connecting the gears, storing holes for slidably and rotatably storing the gears, a thrust block for receiving thrust forces of the output shafts, washers, respectively opposed to the gears and movably arranged with respect to the thrust block in an axial direction, and a spring for pressing the washers, against the gears, and giving frictional torque to said gears. Accordingly, no thrust forces of the output shafts are inputted to the washer members and the spring and initial torque is released from influences of the thrust forces of the output shafts so that stable differential limiting characteristics can be obtained.

摘要翻译： 该差速装置具有由发动机旋转的差速器壳体，布置在差速器壳体内的输出侧的侧齿轮和花键连接到输出轴，用于连接齿轮的小齿轮，用于可滑动地且可旋转地存储齿轮的存储孔，推力 用于接收分别相对于齿轮相对于齿轮并相对于止推块在轴向方向上可移动地布置的输出轴，垫圈的推力的块，以及用于将垫圈压靠在齿轮上的弹簧，并向所述齿轮提供摩擦力矩 。 因此，没有输出轴的推力被输入到垫圈构件，并且弹簧和初始扭矩被释放而不受输出轴的推力的影响，从而可以获得稳定的差速限制特性。

公开(公告)号：US5692987A

公开(公告)日：1997-12-02

申请号：US497557

申请日：1995-06-30

申请人： Yasuji Shibahata ,  Kenji Honda ,  Tetsushi Asano

发明人： Yasuji Shibahata ,  Kenji Honda ,  Tetsushi Asano

IPC分类号： B60K17/16 ,  B60K23/04 ,  F16H48/30 ,  B60K17/20

CPC分类号： F16H48/22 ,  B60K17/16 ,  B60K23/04 ,  F16H48/30 ,  F16H48/36 ,  F16H2048/204 ,  F16H2048/368 ,  F16H48/10

摘要： A ring gear of a differential connected to an engine, and a sun gear and a planetary carrier are connected to left and right output shafts of the differential. A first pinion and a second pinion integrally formed and having different circle radii are carried on a carrier member which is rotatably fitted over the left output shaft. The first pinion is connected to the right output shaft, while the second pinion is connected to the left output shaft. When a hydraulic clutch is brought into an engaged state during clockwise turning of a vehicle, the carrier member is decelerated to accelerate a left front wheel, and a torque is transmitted to the left front wheel. When a hydraulic clutch is brought into an engaged state during counterclockwise turning of a vehicle, the carrier member is accelerated to accelerate a right front wheel, and a torque is transmitted to the right front wheel.

摘要翻译： 连接到发动机的差速器的环形齿轮和太阳轮和行星齿轮架连接到差速器的左和右输出轴。 整体形成并且具有不同圆半径的第一小齿轮和第二小齿轮被承载在可旋转地装配在左输出轴上的承载构件上。 第一小齿轮连接到右输出轴，而第二小齿轮连接到左输出轴。 当液压离合器在车辆顺时针转动期间处于接合状态时，承载构件减速以加速左前轮，并且扭矩传递到左前轮。 当液压离合器在车辆的逆时针转动中处于接合状态时，载体构件被加速以加速右前轮，并且转矩传递到右前轮。

公开(公告)号：US5556350A

公开(公告)日：1996-09-17

申请号：US297156

申请日：1994-08-29

申请人： Heinz Madsack

发明人： Heinz Madsack

IPC分类号： F16H57/02 ,  B60K20060101 ,  B60K17/16 ,  B60K23/04 ,  F16H48/08 ,  F16H48/20 ,  F16H48/22 ,  F16H48/26 ,  B60K17/20

CPC分类号： F16H48/08 ,  F16H48/26

摘要： A differential drive with a differential housing (13) supported in a housing (12) has driving bevel gears (16, 17) and differential bevel gears (22, 23) which engage one another. The differential housing (13) includes a bearing projection (41) with a cylindrical bearing face (39). Furthermore, the differential housing (13) includes a radially extending connecting face (40) with bores (42) to receive coupling pins. A viscous coupling (26) is supported on bearings (55, 57) in a flange housing (47) flanged to the housing (12). The viscous coupling (26) includes a bearing bore (46) which associates the viscous coupling with the differential drive, receives a bearing projection (41) of the differential housing (13), with the flange housing (47) supporting the bearing carrier. Furthermore, a plug-in shaft (58) is provided which, for connecting the hub (32), includes teeth and which itself may be plugged into a toothed bore (60) of the driving bevel gear (17). The coupling housing (27) also includes bores (44) to receive coupling pins (45). After the viscous coupling (26) has been prefitted in the flange housing (47), an axial plug-in assembly procedure is carried out where coupling pins (45) and the plug-in shaft (58) establish a connection with the housing (12) of the differential drive.

摘要翻译： 具有支撑在壳体（12）中的差速器壳体（13）的差速驱动器具有彼此接合的主动锥齿轮（16,17）和差速锥齿轮（22,23）。 差速器壳体（13）包括具有圆柱形轴承面（39）的轴承突起（41）。 此外，差速器壳体（13）包括具有孔（42）的径向延伸的连接面（40）以接收连接销。 在法兰壳体（47）上的轴承（55,57）上支撑粘性联轴器（26），法兰壳体（47）与外壳（12）接合。 粘性联轴器（26）包括轴承孔（46），其将粘性联轴器与差速驱动器相关联，接收差速器壳体（13）的轴承突起（41），凸缘壳体（47）支撑轴承架。 此外，提供插入轴（58），其用于连接轮毂（32）包括齿，并且其自身可以被插入到主动锥齿轮（17）的齿形孔（60）中。 联接壳体（27）还包括用于接收联接销（45）的孔（44）。 在粘性联轴器（26）已被布置在凸缘壳体（47）中之后，进行轴向插件组装过程，其中联接销（45）和插入轴（58）建立与壳体的连接（ 12）的差速驱动。

公开(公告)号：US5749801A

公开(公告)日：1998-05-12

申请号：US623326

申请日：1996-03-27

申请人： Masao Teraoka ,  Nobushi Yamazaki

发明人： Masao Teraoka ,  Nobushi Yamazaki

IPC分类号： F16H48/08 ,  F16H48/20 ,  F16H48/22 ,  F16H48/27 ,  F16H48/30 ,  F16H48/32 ,  F16H48/40 ,  F16H1/455 ,  B60K17/20

CPC分类号： F16H48/22 ,  F16H48/08 ,  F16H48/27 ,  F16H48/30 ,  F16H48/32 ,  F16H2048/204 ,  F16H2048/205 ,  F16H2200/2071 ,  F16H48/40

摘要： A differential unit is disclosed which has a differential limiting function and which exhibits stable differential limiting characteristic even if the difference in the differential rotations is small. The differential unit has a differential case, pinion gears, side gears, a gear pump disposed between a left side gear and the differential case. The hydraulic actuator, and a multiple disc clutch, wherein the gear pump consists of a plurality of gear pumps each having a pump case formed integrally with the differential case, a first accommodation hole of the pump case, a plurality of second accommodation holes formed at intervals in the circumferential direction of the first accommodation hole, a large-diameter gear rotatively accommodated in the first accommodation hole at a position on the outer surface of a boss portion of the left side gear and arranged to be rotated together with the left side gear, and small-diameter gears rotatively accommodated in the second accommodation holes and engaged to the large-diameter gear.

摘要翻译： 公开了一种具有差速限制功能的差分单元，即使差速旋转的差异小，也出现稳定的差速限制特性。 差动单元具有差速器壳体，小齿轮，侧齿轮，设置在左侧齿轮和差速器壳体之间的齿轮泵。 液压致动器和多片离合器，其中齿轮泵由多个齿轮泵组成，每个齿轮泵具有与差速器壳体一体形成的泵壳体，泵壳体的第一容纳孔，多个第二容纳孔，形成在 在第一容纳孔的圆周方向上的间隔;大直径齿轮，其旋转地容纳在左侧齿轮的凸台部的外表面上的位置处的第一容纳孔中，并与左侧齿轮 和小直径齿轮旋转地容纳在第二容纳孔中并接合到大直径齿轮。

公开(公告)号：US5674146A

公开(公告)日：1997-10-07

申请号：US514105

申请日：1995-08-11

申请人： Hideo Hayakawa ,  Seiki Numao ,  Satoshi Aiba ,  Kenji Hiraishi

发明人： Hideo Hayakawa ,  Seiki Numao ,  Satoshi Aiba ,  Kenji Hiraishi

IPC分类号： F16H48/28 ,  F16H48/285 ,  F16H48/38 ,  F16H48/40 ,  F16H1/45 ,  B60K17/20

CPC分类号： F16H48/285

摘要： A differential gear apparatus includes a differential case 21 having casing members 31,33 fixed by a tightening member 35 and driven by an engine to be rotated, side gears 37,39 on the wheel side, pinion gears 57,59 for linking the gears 37,39 with each other, and receiving bores 53,55 formed of first and second wall surfaces 77,79,83,85 which are respectively formed in the casing members 31,33 for receiving the pinion gears 57,59 slidably and rotatably therein, wherein wall surfaces 77,79 occupy semicircles or more of the receiving bores 53,55, and curvatures of the wall surfaces 83,85 are set to be larger than those of the wall surfaces 77,79 and wherein distances between the wall surfaces 83,85 and the pinion gears 57,59 are set to be longer than distances between the wall surfaces 77,79 and the pinion gears 57,59 in contacting areas of respective wall surfaces.

摘要翻译： 差动齿轮装置包括差速器壳体21，其具有由紧固构件35固定并由要旋转的发动机驱动的壳体构件31,33，车轮侧的侧齿轮37,39，用于连接齿轮37的小齿轮57,59 39彼此以及由分别形成在壳体构件31,33中的第一和第二壁表面77,79,83,85形成的接收孔53,55，用于在其中可滑动地和可旋转地接纳小齿轮57,59， 其中壁表面77,79占据接收孔53,55的半圆形或更多个，并且壁表面83,85的曲率被设定为大于壁表面77,79的曲率，并且其中壁表面83,75之间的距离 85和小齿轮57,59被设定为比相应壁面的接触区域中的壁面77,79与小齿轮57,59之间的距离更长。