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    • 1. 发明授权
    • Differential apparatus
    • 差分仪
    • US06059683A
    • 2000-05-09
    • US909213
    • 1997-08-11
    • Masao TeraokaSatoshi AibaKenji HiraishiKazumitsu UgajinShuhei Ono
    • Masao TeraokaSatoshi AibaKenji HiraishiKazumitsu UgajinShuhei Ono
    • F16H48/285F16H57/04
    • F16H48/285F16H57/0427F16H57/043F16H57/0483
    • 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.
    • 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。
    • 2. 发明授权
    • Differential apparatus
    • 差分仪
    • US5735765A
    • 1998-04-07
    • US587324
    • 1996-01-12
    • Masao TeraokaSatoshi AibaHiraishi KenjiKazumitsu UgajinShuhei Ono
    • Masao TeraokaSatoshi AibaHiraishi KenjiKazumitsu UgajinShuhei Ono
    • F16H48/285F16H57/04F16H1/45B60K17/20
    • F16H48/285F16H57/0427F16H57/043F16H57/0483
    • 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.
    • 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。
    • 3. 发明授权
    • Differential apparatus having helical oil distribution passages to
radial oil passages
    • 差压装置具有到径向油通道的螺旋油分配通道
    • US5890984A
    • 1999-04-06
    • US909418
    • 1997-08-11
    • Masao TeraokaSatoshi AibaKenji HiraishiShuhei Ono
    • Masao TeraokaSatoshi AibaKenji HiraishiShuhei Ono
    • F16H48/285F16H57/04F01M1/00
    • F16H48/285F16H57/0427F16H57/043F16H57/0483
    • 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.
    • 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。
    • 4. 发明授权
    • Differential apparatus with speed and torque sensitive differential
limiting forces
    • 差速装置具有速度和转矩敏感的差速限制力
    • US5458547A
    • 1995-10-17
    • US93051
    • 1993-07-16
    • Masao TeraokaSatoshi AibaKenji HiraishiShuhei Ono
    • Masao TeraokaSatoshi AibaKenji HiraishiShuhei Ono
    • F16H48/10F16H48/11F16H48/22F16H48/26F16H48/27F16H48/285
    • F16H48/285F16H48/10F16H48/11F16H48/22F16H48/26F16H48/27F16H2048/106
    • 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.
    • 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。