公开(公告)号：US06059683A

公开(公告)日：2000-05-09

申请号：US909213

申请日：1997-08-11

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

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

IPC分类号： F16H48/285 ,  F16H57/04

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

摘要： A differential apparatus (7) comprises: a differential casting (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 each 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,) is formed between the block member and the side gears, to supply lubricant to sliding portions between the bolck 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 heat 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：由发动机功率旋转的差速铸件（21）; 多个小齿轮（65,66），其可滑动地容纳在形成在所述差速器壳体中的容纳孔（63,64）中; 通过小齿轮相互啮合的一对侧齿轮（35,37），其两个相对的端面相对于彼此直接地或通过止推垫圈（61）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，在挡块构件和侧齿轮之间形成至少一个油底壳（77），以将润滑剂供应到凸块构件（47,91,97）和侧齿轮（35,37）之间的滑动部分和 在两个侧齿轮的两个相对的端面之间，由旋转差速器壳体产生的离心力。 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，还优选分别在差速器壳体（821,921）和侧齿轮（835,837,939,941）的内壁面之间形成至少两个径向油路（881,885,977,978） 使其径向向内的端部与热油通道（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：US5890984A

公开(公告)日：1999-04-06

申请号：US909418

申请日：1997-08-11

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

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

IPC分类号： F16H48/285 ,  F16H57/04 ,  F01M1/00

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 each 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 直接或通过止推垫圈（61）彼此相对滑动; 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：US5458547A

公开(公告)日：1995-10-17

申请号：US93051

申请日：1993-07-16

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

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

IPC分类号： F16H48/10 ,  F16H48/11 ,  F16H48/22 ,  F16H48/26 ,  F16H48/27 ,  F16H48/285

CPC分类号： F16H48/285 ,  F16H48/10 ,  F16H48/11 ,  F16H48/22 ,  F16H48/26 ,  F16H48/27 ,  F16H2048/106

摘要： A differential apparatus comprises: a differential casing; a first side gear rotatably arranged within the differential casing and connected to the first shaft; a second side gear rotatably arranged within the differential casing in parallel to the first side gear and connected to the second shaft; at least one short pinion gear housed in a bore formed in the differential casing so as to be rotated within the bore and around the first and second side gears together with the differential casing; at least one long pinion gear housed in another bore formed in the differential casing in parallel to and in mesh with the short pinion gear so as to be rotated within the bore and around the first and second side gears together with the differential casing; and a viscous coupling. The first and second side gears are geared to each other through the short and long pinion gears so as to be rotated differentially relative to each other, when the short and long pinion gears are driven by the differential casing. The differential apparatus can generate a torque sensitive differential limiting force uniform both when a torque is transmitted to the first shaft under the condition that the second shaft is being idled and when a torque is transmitted to the second shaft under the condition that the first shaft is being idled; and a speed sensitive differential limiting force generated by the viscous coupling.

摘要翻译： 差速装置包括：差速器壳体; 第一侧齿轮，其可旋转地布置在差速器壳体内并连接到第一轴; 第二侧齿轮，平行于第一侧齿轮可旋转地布置在差速器壳体内并连接到第二轴; 至少一个短小齿轮，其容纳在形成在所述差速器壳体中的孔中，以便与所述差速器壳体一起在所述孔内旋转并围绕所述第一和第二侧齿轮旋转; 至少一个长小齿轮容纳在形成在差速器壳体中的另一个孔中，平行于短小齿轮并与其啮合，以便与差速器壳体一起在孔内并围绕第一和第二侧齿轮旋转; 和粘性耦合。 第一和第二侧齿轮通过短小齿轮和长小齿轮相互啮合，以便当短轴和长齿轮被差速器壳体驱动时，彼此相对旋转。 差分装置可以产生扭矩敏感的限制力，当在第二轴被空转的条件下扭矩传递到第一轴时，以及当在第一轴是第二轴的情况下将扭矩传递到第二轴时， 被闲置 以及由粘性联轴器产生的速度敏感的差速限制力。

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：US5711737A

公开(公告)日：1998-01-27

申请号：US554453

申请日：1995-11-07

申请人： Masao Teraoka ,  Osamu Ishikawa ,  Satoshi Aiba ,  Kenji Hiraishi

发明人： Masao Teraoka ,  Osamu Ishikawa ,  Satoshi Aiba ,  Kenji Hiraishi

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

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

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. On the side wall of the differential casing a plurality of lubrication holes are formed for introducing the lubrication oil into the differential casing. Each lubrication hole is arranged so that a center thereof is positioned in the vicinity of a meshing point of the pinion gears. In operation, due to the screw pumping effect of the pinion gears, plenty of lubrication oil is introduced into meshing portions of the pinion gears.

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。 在差速器壳体的侧壁上形成有用于将润滑油引入到差速器壳体中的多个润滑孔。 每个润滑孔布置成使得其中心位于小齿轮的啮合点附近。 在操作中，由于小齿轮的螺杆泵送效应，大量的润滑油被引入小齿轮的啮合部分。

公开(公告)号：US06206668B1

公开(公告)日：2001-03-27

申请号：US09017580

申请日：1998-02-03

申请人： Masao Teraoka ,  Kenji Hiraishi

发明人： Masao Teraoka ,  Kenji Hiraishi

IPC分类号： F03C200

CPC分类号： F01C1/126 ,  F01C21/106

摘要： A fluid machine comprises a rotor (7, 9) meshed with each other in concave and convex portions (23, 26) and (25, 24), and a casing (3) enveloping these elements within cylindrical portions (43, 45) of a rotor chamber (5) and having a flow inlet port (31) and a flow outlet port (33). The cylindrical portions (43, 45) are moved to moved centers (47, 49) from standard centers (35, 37) at a predetermined distance L toward the flow inlet port (31), so that the rotor chambers (5) is expanded to cylindrical portions (55, 57) from the cylindrical portions (43, 45).

摘要翻译： 流体机械包括在凹凸部分（23,26）和（25,24）中彼此啮合的转子（7,9），以及将这些元件包围在圆柱形部分（43,44）内的壳体（3） 转子室（5）并具有流入口（31）和流出口（33）。 圆柱形部分（43,45）从标准中心（35,37）以预定距离L朝向流入口（31）移动到移动中心（47,49），使得转子室（5）膨胀 到圆筒部（43,45）的圆筒部（55,57）。

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。

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：US6142759A

公开(公告)日：2000-11-07

申请号：US40602

申请日：1998-03-18

申请人： Masao Tateno ,  Kenji Hiraishi

发明人： Masao Tateno ,  Kenji Hiraishi

IPC分类号： F04C18/18 ,  F02B33/38 ,  F04C18/08 ,  F04C18/12 ,  F04C18/00

CPC分类号： F04C18/084 ,  F02B33/38 ,  F04C18/126

摘要： In a Roots displacement fluid machine (5) comprising rotors (15, 17) meshed with each other in a tooth trace (57, 59) formed in parallel to a rotating central axis, and a casing (13) having a rotor chamber (33) rotatably receiving the rotors (15, 17), a fluid inlet port for a fluid and a fluid outlet port, an inclined surface (67) forming an angle .theta. with respect to an opposing surface (65) of the rotor chamber (33) is disposed at least in a tip end of the end portion of the rotor (15), and a gap (69) is formed with respect to the opposing surface (65).

摘要翻译： 在根位移流体机器（5）中，包括在与旋转的中心轴平行的齿迹（57,59）中彼此啮合的转子（15,17），以及具有转子室（33）的壳体（13） ），可旋转地接收转子（15,17），用于流体和流体出口的流体入口端口，相对于转子室（33）的相对表面（65）形成角度θ的倾斜表面（67） 至少设置在转子（15）的端部的前端部，并且相对于相对面（65）形成间隙（69）。

公开(公告)号：US5556351A

公开(公告)日：1996-09-17

申请号：US234130

申请日：1994-04-28

申请人： Kenji Hiraishi ,  Shingo Saeki ,  Kazuyuki Yamazaki ,  Takao Nakajima

发明人： Kenji Hiraishi ,  Shingo Saeki ,  Kazuyuki Yamazaki ,  Takao Nakajima

IPC分类号： F16H48/28 ,  F16H48/285 ,  F16H48/38 ,  F16H57/04 ,  F16H48/10

CPC分类号： F16H48/285 ,  F16H57/0427 ,  F16H57/0457 ,  F16H57/0483 ,  Y10T29/49467 ,  Y10T29/49476 ,  Y10T29/49702 ,  Y10T74/19995

摘要： A differential apparatus includes a differential casing (21) rotated by an engine drive power; pinion gears (51, 53) slidably and rotatably accommodated in accommodating holes (47, 49) formed in the differential casing (21); a pair of side gears (31, 33) linked with each other via the pinion gears, for transmitting the engine drive power to vehicle wheels differentially; and device (69, 73, 81, 91, 99, 101, 103, 107, 109) for supplying lubricant to sliding surfaces between inner walls of the accommodating holes and the pinion gears.

摘要翻译： 差速装置包括由发动机驱动力旋转的差速器壳体（21）; 可滑动地且可旋转地容纳在形成在差速器壳体（21）中的容纳孔（47,49）中的小齿轮（51,53）。 经由小齿轮彼此连接的一对侧齿轮（31,33），用于将发动机驱动力差分地传递到车轮; 以及用于向容纳孔的内壁和小齿轮之间的滑动表面供给润滑剂的装置（69,73,81,91,99,101,103,107,109,109）。