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公开(公告)号：US4077282A
公开(公告)日：1978-03-07
申请号：US753644
申请日：1976-12-23
申请人： James Henry Kress
发明人： James Henry Kress
CPC分类号： F16H3/663 , F16H2200/0039 , F16H2200/2005 , F16H2200/2025
摘要： A planetary transmission for selectively shifting among three forward and one reverse speeds includes first and second sun gears respectively secured to and clutchable to a drive shaft to provide a first forward speed. A planet carrier, secured to a driven shaft, surrounds the sun gears and carries a first planet gear meshing with the first sun gear and a compound planet gear comprising a second planet gear meshing with the first planet gear and a third planet gear meshing with the second sun gear. Respectively concentric with the first and second sun gears are brake-associated first and second ring gears which respectively mesh with the first and third planet gears. First, second, and third brakes are respectively connected to the first ring gear, the second ring gear, and the first sun gear to stop and allow rotation of said gears to provide two forward and one reverse speeds; a third forward speed is provided by clutching the second sun gear to the drive shaft.
摘要翻译： 用于在三个前进速度和一个倒车速度之间选择性地换档的行星变速器包括分别固定到驱动轴并可与驱动轴接合以提供第一前进速度的第一和第二太阳齿轮。 固定到从动轴的行星架围绕太阳齿轮并且携带与第一太阳齿轮啮合的第一行星齿轮和复合行星齿轮，其包括与第一行星齿轮啮合的第二行星齿轮和与第一行星齿轮啮合的第三行星齿轮 第二个太阳齿轮 与第一和第二太阳齿轮分别同心的是分别与第一和第三行星齿轮啮合的与制动器相关联的第一和第二齿圈。 第一，第二和第三制动器分别连接到第一环形齿轮，第二环形齿轮和第一太阳轮，以停止并允许所述齿轮的旋转以提供两个前进和倒退速度; 通过将第二太阳齿轮紧固到驱动轴来提供第三前进速度。
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公开(公告)号：US3987768A
公开(公告)日：1976-10-26
申请号：US433094
申请日：1974-01-14
CPC分类号： F16H61/444 , F16H39/02
摘要： An auxiliary hydrostatic drive system for a vehicle includes a pump, a reservoir, fluid motors connected to the normally non-driven steerable wheels of the vehicle, reciprocating piston-type wheel drive motors connected to the normally nondriven steerable wheels, fluid lines interconnecting the pump and reservoir with the inlet and outlet ports of the wheel motors, and a motor control valve movable to either side of a neutral fluid blocking position to forward and reverse drive positions. An additional valve interconnects the motor ports with the drive chambers of the motors whenever the motor control valve is in the neutral position so that during periods when the motors are not connected to the pump and are driven mechanically, they function as pumps to pressurize their drive chambers and hold their pistons off the drive cams.
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公开(公告)号：US4077280A
公开(公告)日：1978-03-07
申请号：US752744
申请日：1976-12-21
CPC分类号： F16H3/64
摘要： A planetary transmission for selectively shifting among four forward speeds includes a first ring gear secured to a drive shaft. The first ring gear drives a compound planetary gear set which is journaled on a driven-shaft-connected planet carrier. A first planet gear set of the compound planetary gear set meshes with a carrier-journaled, third planet gear set which meshes in turn with a second ring gear. The first planet gear set further meshes with a first sun gear which is concentric with the first ring gear and which encircles and is clutchable to the driven shaft to provide one forward speed ratio between drive and driven shafts. A second plane gear set of the compound planetary gear set meshes with a second sun gear which is coaxial with the first sun gear and concentric with the second ring gear. First, second, and third brakes are respectively connected to the second ring gear, the second sun gear, and the first sun gear to stop and allow rotation of said gears to provide three additional forward speeds.
摘要翻译： 用于在四个前进速度之间选择性地换档的行星变速器包括固定到驱动轴的第一环形齿轮。 第一个环形齿轮驱动一个复合行星齿轮组，该组合行星齿轮组位于从动轴连接的行星架上。 复合行星齿轮组的第一行星齿轮组与具有第二齿圈啮合的行星齿轮式第三行星齿轮组啮合。 第一行星齿轮组进一步与第一太阳齿轮啮合，第一太阳齿轮与第一齿圈同心，并且环绕并且与从动轴可离合，从而在驱动轴和从动轴之间提供一个前进速比。 复合行星齿轮组的第二平面齿轮组与第二太阳齿轮啮合，第二太阳齿轮与第一太阳齿轮同轴并与第二齿圈同心。 第一，第二和第三制动器分别连接到第二齿圈，第二太阳齿轮和第一太阳轮，以停止并允许所述齿轮的旋转以提供三个额外的前进速度。
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