A reverse transmission system for a vehicle for engaging a reverse action on a normally forward action only engine transmission having a longitudinal orientation driveshaft output, the reverse transmission system comprising a gear rotatably connected to the longitudinal orientation driveshaft output of a normally forward action only engine transmission output; a shaft rotatably connected to the gear for transmitting power from the normally forward action only engine transmission output to the shaft; a chain sprocket connected to a chain drive and to the shaft for providing a transverse orientation output to the chain drive to change the direction of rotation of the driveshaft output, thereby for engaging the vehicle in the reverse action; and a reverse fork configured to actuate a reverse dog configured to slide upon the shaft to reversibly engage a reverse gear engaged to a first gear of the engine transmission.

An inline gearbox for a land vehicle that includes an engine having a clutch housing for the transmission of rotational force from the engine to one or more wheels for propelling the land vehicle, wherein the inline gearbox includes a fast-change gear assembly.

An inline gearbox for a land vehicle that includes an engine having a clutch housing for the transmission of rotational force from the engine to one or more wheels for propelling the land vehicle, wherein the inline gearbox includes a gearbox housing having a front end, a side and a rear end, with the front end adapted to be joined to the clutch housing. There is an input shaft contained at least in part within the gearbox housing proximate to the front end of the gearbox housing, and a primary gear train that includes (a) a lay shaft; (b) a drive shaft; and (c) a plurality of selectively engaged meshed gear pairs respectively mounted on the lay shaft and the drive shaft for transmitting rotational force from the lay shaft to the drive shaft. The inline gearbox also includes an output shaft contained at least in part within the gearbox housing proximate to the rear end of the gearbox housing, with the output shaft rotationally coupled to the drive shaft. The inline gearbox features a fast-change gear assembly contained within the gearbox housing, where the fast-change gear assembly is positioned proximate the front end of the gearbox housing and interposed between the input shaft and the lay shaft, with the fast-change gear assembly comprising a first fast-change gear and a second fast-change gear meshing with the first fast-change gear, and with the first fast-change gear and the second fast-change gear each having an axis generally parallel to the axis of the input shaft. The first fast-change gear is rotationally coupled to the input shaft so as to rotate with the rotation of the input shaft, and translationally uncoupled to the input shaft to permit removal of the first fast-change gear from the gearbox housing; and the second fast-change gear is rotationally coupled to the lay shaft so as to rotate the lay shaft upon rotation of the second fast-change gear, and translationally uncoupled to the lay shaft to permit removal of the second fast-change gear from the gearbox housing.

An inline gearbox for a land vehicle that includes an engine having a clutch housing for the transmission of rotational force from the engine to one or more wheels for propelling the land vehicle, wherein the inline gearbox includes a gearbox housing having a front end, a side and a rear end, with the front end adapted to be joined to the clutch housing. There is an input shaft contained at least in part within the gearbox housing proximate to the front end of the gearbox housing, and a primary gear train that includes (a) a lay shaft; (b) a drive shaft; and (c) a plurality of selectively engaged meshed gear pairs respectively mounted on the lay shaft and the drive shaft for transmitting rotational force from the lay shaft to the drive shaft. The inline gearbox also includes an output shaft contained at least in part within the gearbox housing proximate to the rear end of the gearbox housing, with the output shaft rotationally coupled to the drive shaft. The inline gearbox features a fast-change gear assembly contained within the gearbox housing, where the fast-change gear assembly is positioned proximate the front end of the gearbox housing and interposed between the input shaft and the lay shaft, with the fast-change gear assembly comprising a first fast-change gear and a second fast-change gear meshing with the first fast-change gear, and with the first fast-change gear and the second fast-change gear each having an axis generally parallel to the axis of the input shaft. The first fast-change gear is rotationally coupled to the input shaft so as to rotate with the rotation of the input shaft, and translationally uncoupled to the input shaft to permit removal of the first fast-change gear from the gearbox housing; and the second fast-change gear is rotationally coupled to the lay shaft so as to rotate the lay shaft upon rotation of the second fast-change gear, and translationally uncoupled to the lay shaft to permit removal of the second fast-change gear from the gearbox housing.

An axle assembly having an axle housing, an electric motor module, and a countershaft transmission module. The axle housing may have a first mounting flange and a second mounting flange. The electric motor module may be mounted to the first mounting flange. The countershaft transmission module may be mounted to the second mounting flange.

An axle assembly having an axle housing, an electric motor module, and a countershaft transmission module. The axle housing may have a first mounting flange and a second mounting flange. The electric motor module may be mounted to the first mounting flange. The countershaft transmission module may be mounted to the second mounting flange.

A power extraction system is provided and includes a low-pressure spool of a gas turbine engine, the low-pressure spool being rotatable at an input rotational speed between a first minimum speed and a first maximum speed, downstream components rotatable at an output rotational speed between a second minimum speed and a second maximum speed and a transmission assembly by which rotations of the low-pressure spool at the input rotational speed are transmittable at the output rotational speed to the downstream components. The transmission assembly includes clutches and a controller configured to control openings and closings of the clutches according to an upshifting algorithm whereby a torque applied by the downstream components is used to reduce the output rotational speed to an output speed of a gear into which the transmission assembly is shifting.

A power extraction system is provided and includes a low-pressure spool of a gas turbine engine, the low-pressure spool being rotatable at an input rotational speed between a first minimum speed and a first maximum speed, downstream components rotatable at an output rotational speed between a second minimum speed and a second maximum speed and a transmission assembly by which rotations of the low-pressure spool at the input rotational speed are transmittable at the output rotational speed to the downstream components. The transmission assembly includes clutches and a controller configured to control openings and closings of the clutches according to an upshifting algorithm whereby a torque applied by the downstream components is used to reduce the output rotational speed to an output speed of a gear into which the transmission assembly is shifting.

An inline gearbox for a land vehicle that includes an engine having a clutch housing for the transmission of rotational force from the engine to one or more wheels for propelling the land vehicle, wherein the inline gearbox includes a gearbox housing having a front end, a side and a rear end, with the front end adapted to be joined to the clutch housing. There is an input shaft contained at least in part within the gearbox housing proximate to the front end of the gearbox housing, and a primary gear train that includes (a) a lay shaft; (b) a drive shaft; and (c) a plurality of selectively engaged meshed gear pairs respectively mounted on the lay shaft and the drive shaft for transmitting rotational force from the lay shaft to the drive shaft. The inline gearbox also includes an output shaft contained at least in part within the gearbox housing proximate to the rear end of the gearbox housing, with the output shaft rotationally coupled to the drive shaft. The inline gearbox features a fast-change gear assembly contained within the gearbox housing, where the fast-change gear assembly is positioned proximate the front end of the gearbox housing and interposed between the input shaft and the lay shaft, with the fast-change gear assembly comprising a first fast-change gear and a second fast-change gear meshing with the first fast-change gear, and with the first fast-change gear and the second fast-change gear each having an axis generally parallel to the axis of the input shaft. The first fast-change gear is rotationally coupled to the input shaft so as to rotate with the rotation of the input shaft, and translationally uncoupled to the input shaft to permit removal of the first fast-change gear from the gearbox housing; and the second fast-change gear is rotationally coupled to the lay shaft so as to rotate the lay shaft upon rotation of the second fast-change gear, and translationally uncoupled to the lay shaft to permit removal of the second fast-change gear from the gearbox housing.

In a toroidal variator a plurality of rolling elements (20, 22) are in driving engagement with an input and output race (10, 14) at respective contact regions. Each rolling element (20, 22) is mounted on a carriage assembly (26) for rotation about a rolling axis, and is being free to pivot about a tilt axis, the tilt axis passing through the rolling element (20, 22) perpendicular to the rolling axis, and intersecting the rolling axis at a roller center, whereby a change in the tilt axis causes a change in the variator ratio being the ratio of rotational speeds of the races. The tilt axis is arranged at an angle known as castor angle (see FIG. 4) to a plane (P) perpendicular to the variator axis (V). Each carriage assembly (26) can cause a movement of the rolling element (20, 22) with a component of rotation about a pitch axis (A, B). The pitch axis is defined as passing through the roller center and through the contact regions. Pitching the roller elements (20, 22) causes them to tilt, thereby changing the transmission ratio.