Abstract:
A multi cone selector in a transmission employs sandwiched cone friction surfaces 19A, 20A and 21A and these are shown in free or unengaged state while the corresponding friction surfaces as numerals 19, 20 and 21 are shown as engaged. This comparative illustration shows the relative positions of the surfaces at different times since the “A” surfaces and the non “A” surfaces are the same circumferential surfaces. The cone selector is used to engage free rotating gear a female part 22 of a multi-cone selector. A hydraulic actuator 23 is received by internal gear case wall 24 formed so as to prevent any radial or axial movement of the actuator itself. A hydraulic coupling, in this case the hydraulic coupling is formed as hydraulic springs or bags illustrated at 26. The crown of hydraulic spring outlet piston is formed so as to clip in a housing of a thrust bearing 29. The function of thrust bearing 29 is to provide relative rotational movements between cone clutch male part 30 and a piston of a hydraulic spring whether in idling or power transmitting mode. Twin cone selector comprises male part 30, female part 22 and cones 31 and 32. Cone 31 operates as a driving cone and is constrained but free to slide parallel to the axis of rotation in circular slots 33. Cone 32 operates as a driven cone and is constrained but free to slide parallel to the axis of rotation in circular slots 36.
Abstract:
A transmission comprising gear case bottom part 72 and rear cover 73; shaft 19 supported on bearings 34 and 37; shaft 20 supported on bearings 33, 38 and 39; shaft 21 supported on bearings 35, 36 and 40 and shaft 22 supported on bearings 41 and 42.Shaft 19 carries a cluster of seven gears 1, 2, 3, 4, 5, 6 and 7 all of them being integral part of the shaft. These gears are positioned along the shaft from the smallest gear 1 to the largest gear 7. Each gear on shaft 19 is permanently meshed with a gear on either shaft 20 or shaft 21. Gear 1 is meshed with gear 8, gear 2 with gear 9, gear 3 with gear 10, gear 4 with gear 11, gear 5 with gear 12, gear 6 with gear 13 and gear 7 with gear 14. Gear 17 on shaft 21 and gear 18 on shaft 20 are meshed with gear 16 on the output shaft 22. All gears on shafts 20, 21 and 22 in FIG. 1 and gear 65 on shaft 61 in FIG. 2 are rotating on angular contact ball bearings with their inner rings fixed to the shafts. Gears are selected using cone or multiple plate disk clutches driven by hydraulic actuators.
Abstract:
A multi cone clutch is used on the input to a transmission. The clutch has a multi-cone structure which employs sandwiched cone friction surfaces. The multi-cone structure is used for gears selection inside the transmission. In this case, sandwiched cone friction surfaces are in free or unengaged state while the corresponding friction surfaces are engaged. The cone selector is used to engage free rotating female part of a multi-cone selector. A hydraulic actuator is received by internal gear case wall to prevent any radial or axial movement of the actuator itself. The crown of hydraulic spring outlet piston is formed so as to clip in a housing of a thrust bearing is to provide relative rotational movements between cone clutch male part and a piston in idling or power transmitting mode.
Abstract:
In a transmission of the constant mesh type a number of gear selectors are driven by using a hydraulic coupling between input and output pistons. The hydraulic coupling functions as a hydraulic spring and force multiplier. A hydraulic actuator (23) is received by internal gear case wall (24) formed so as to prevent any radial or axial movement of the actuator itself. A hydraulic coupling, in this case the hydraulic coupling is formed as hydraulic springs or bags illustrated at (26).