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公开(公告)号:US4742731A
公开(公告)日:1988-05-10
申请号:US943026
申请日:1986-12-18
CPC分类号: F16H61/12 , F16H61/702 , F16H2061/1204 , F16H2061/1236 , F16H2061/1244 , F16H2061/1268 , Y10T74/19167 , Y10T74/19251
摘要: A transmission includes a range selector valve that eliminates the possibility of unintentional simultaneous multiple gear engagement by a fail safe arrangement of fluid flow paths and valving. A pair of parallel paths connect to clutches that operate a high-low power shift transmission and a multiple speed power shift main transmission. The fluid flow path to the multiple speed power shift main transmission clutches is valved to select either a first or second group of speed/direction settings. Each of these groups then includes at least one valve to select a particular transmission speed or direction setting.
摘要翻译: 变速器包括换档阀,其消除了通过流体流路和阀门的故障安全布置而意外同时多齿轮啮合的可能性。 一对平行路径连接到操作高低功率换档变速器和多速动力换档主变速器的离合器。 通向多速动力换挡主变速器离合器的流体流动路径被选中以选择第一组或第二组速度/方向设置。 这些组中的每一个然后包括至少一个阀,以选择特定的传输速度或方向设置。