Abstract: A power takeoff and gearbox system of a multi-spool gas turbine engine includes a low rotor towershaft operably connected to and driven by a first spool of the gas turbine engine, and a high rotor towershaft operably connected to and driven by a second spool of the gas turbine engine. The high rotor towershaft and the low rotor towershaft are concentric and extend to a common gearbox housing.

Abstract: The invention relates to a multi-range CVT with a stepless adjustable variator and at least two switchover steps for displaying at least two operating ranges with stepless transmission. The invention is characterized by at least one direct drive shaft stage, which bridges the variator, with a special transmission for displaying a range change between the operating ranges.

Abstract: A firefighting pump transmission for use with an emergency vehicle pump comprising a housing receiving a drive shaft, the drive shaft having a PTO gear affixed thereto within the housing, an impeller shaft for turning an impeller of a pump, and means for selectively powering the impeller shaft from the drive shaft, the means for powering may include a multi-disk clutch. The transmission allows for powering the PTO gear while the impeller shaft is idle. A Commercially Available PTO device may be mounted to the housing to power a variety of devices.

Abstract: A flange forming an input for the device and including a damper stop tab extending radially outward; a plate including first and second curved slots; and a curved friction assembly including a first end disposed in the first curved slot, a second end disposed in the second curved slot, at least one curved engagement plate including an engagement tab extending radially inward, at least one curved friction plate rotationally fixed to the plate, and a resilient element urging the at least one curved engagement plate and the at least one curved friction plate into contact. The device includes at least one elastic element engaged with the flange.

Abstract: A farm vehicle power take-off device, in particular for a tractor, wherein an output shaft is connected selectively by a drive to a first and second input shaft rotating at different speeds. The selective connection is made by moving a selector sleeve between three settings, in a first and second of which, the output shaft is connected to the first shaft to rotate at a first and second angular speed respectively, and, in a third of which, the output shaft is connected to the second shaft to rotate at a third angular speed different from the first and second angular speed.

Abstract: A power take-off for compressors, comprising: a first rotating element (2), predisposed to be connected on command to a motor (40); at least a second rotating element (3), kinematically connected to the first rotating element (2), which is predisposed to be connected to a first user (50); a torque limiter or clutch (4), interposed between the first rotating element (2) and the second rotating element (3).

Abstract: A method includes adapting an all-terrain-vehicle transmission (ATV) shaft for coupling thereto. The method includes configuring an ATV transmission cover to allow the ATV transmission shaft to pass through the ATV cover, and modifying an ATV sub-transmission shift plate to provide a neutral position for the transmission, wherein the neutral position disconnects power to ATV wheels while providing power to the ATV transmission shaft. An apparatus includes an ATV transmission, having a transmission shaft and transmission housing, wherein the transmission shaft is configured to facilitate coupling thereto; and a transmission shaft extension releaseably connectable with the transmission shaft, the transmission housing having an opening through which the transmission shaft extension can be accessed such that energy can be transferred to an external device.

Abstract: A power take-off assembly for a work vehicle including an improved power take-off shaft for installation and removal. The power take off shaft is extended and a cut out section on the first end of the shaft is provided to engage an extended portion of a spring loaded mechanism. Once the cut out section securely fits over the extended portion, the spring loaded mechanism is prevented from axially moving in a rightward direction, thus enabling the spring to hold the gear collar in place to engage the high speed gear. The PTO stub shaft has an extended end with protruding shoulders which serve to capture the snap ring between the stub shaft and the output shaft so that when the stub is moved axially the shoulders will pull the snap ring into the groove on the output shaft which securely fastens the stub shaft. A cut-out section on the front end surface of the output shaft is also provided to allow clearance for the tool to squeeze the snap ring tabs during installation and removal.

Abstract: An automatic locking ball coupler for a power take off includes a ball keeper connected to the power take off and having a longitudinal axis and openings in a cylindrical surface thereof. Locking balls are received in the openings and can move radially with respect to the axis of the cylindrical ball keeper. A ball collar is positioned around the cylindrical ball keeper and has a plurality of internal circumferential rings and recesses between each ring. The ball collar can slide axially with respect to the longitudinal axis of the ball keeper between a coupled position in which the locking balls are on the rings and an uncoupled position in which the locking balls are in the recesses.

Abstract: A power take-off includes an input mechanism that is disposed within an input mechanism housing and is adapted to be connected to a source of rotational energy. A clutch assembly is disposed within a clutch assembly housing and is adapted to be connected to a rotatably driven device. A driveshaft connects the input mechanism to the clutch assembly. The driveshaft may be disposed within a driveshaft housing that is connected to the input mechanism housing and forms the clutch assembly housing.

Abstract: A farm vehicle power take-off device, in particular for a tractor, wherein an output shaft is connected selectively by a drive to a first and second input shaft rotating at different speeds. The selective connection is made by moving a selector sleeve between three settings, in a first and second of which, the output shaft is connected to the first shaft to rotate at a first and second angular speed respectively, and, in a third of which, the output shaft is connected to the second shaft to rotate at a third angular speed different from the first and second angular speed.

Abstract: There is provided a PTO transmission structure including a PTO driving shaft operatively connected to a driving source, a PTO driven shaft arranged in a downstream side in a transmission direction of the PTO driving shaft, a PTO clutch unit for selectively performing power transmission/power interruption from the PTO driving shaft to the PTO driven shaft, and a transmission case for supporting the PTO driving shaft and the PTO driven shaft and for accommodating the PTO clutch unit. The transmission case has a case main body which includes a first wall having a first hole for supporting the PTO driving shaft, and a second wall having a second hole for supporting the PTO driven shaft, the second wall being spaced apart from the first wall so as to define a first accommodating space to position the PTO clutch unit between the first wall and the second wall.

Abstract: A power take-off system for a gas turbine engine includes a starter coupled to a first spool using a first shaft, and a generator coupled to the second spool using a second shaft, the first shaft is circumferentially offset by the second shaft by an angle ?. A method of assembling a gas turbine engine assembly that includes the power take-off system, and a gas turbine engine assembly including the power take-off system are also described.

Abstract: A power takeoff assembly includes a housing, a drivingly engageable input shaft, a power takeoff shaft, a source of pressurized fluid, a fluid filled clutch assembly with a first clutch element operatively connected to the input shaft and a second clutch element operatively connected to the power takeoff shaft, and a brake operable to engage the power takeoff shaft to the housing. The clutch assembly is placed in an engaged state when pressurized fluid from the pressure source causes the first clutch element to engage the second clutch element such that the input shaft drives the power takeoff shaft. The clutch assembly is placed in a disengaged state when pressurized fluid from the pressure source is removed from the clutch assembly. The brake engages the power takeoff shaft to the housing when the clutch assembly is in the disengaged state to prevent fluid forces within the clutch assembly from driving the power takeoff shaft.

Abstract: An actuator with an electric motor which drives an activation element, such as a rotatable arm or a longitudinally movable rod, via a transmission. The transmission has at least two transmission stages, the first one being formed by a worm drive, the second one being formed by a crown and bevel wheel (5; 4a, 4b), the bevel wheel (4a, 4b) being driven by the worm wheel (3a, 3b), and the crown wheel (5) having a power take-off (15). The transmission may readily be formed so that the axis of the crown wheel (5) is in direct extension of the worm (2). A relatively compact transmission with a high gearing may be achieved hereby, and with worm wheel as well as crown and bevel wheel of plastics the transmission is also comparatively noiseless.

Abstract: Embodiments of the invention provide a bearing support for the primary drive shaft extension of a motorcycle or the like so that the main bearing support is as close to the drive mechanism as possible. In one embodiment, the shaft extension device comprises a shaft extension member configured to be attached to the shaft to rotate with the shaft. The shaft extension member includes a bearing surface disposed at a distance axially spaced from the shaft. A primary spacer is configured to be connected to the motor casing. A bearing is supported by the primary spacer to be axially spaced from the shaft and to contact the bearing surface of the shaft extension member to provide bearing support for the shaft extension member.

Abstract: A process for achieving engagement of a power source with a high inertia load by use of a clutch provides for the sequential engagement of the clutch until the speed of the power source drops to a first threshold, at which time the clutch is disengaged until the speed of the power source recovers to a second threshold. The process is repeated until the power source operates above the first threshold for a set period of time. The process may be terminated, leaving the clutch either engaged or disengaged, after a certain number of sequential attempts at engagement and disengagement have been made, or after a certain period of time has elapsed. The invention also relates to a system and associated process by which a microprocessor obtains various data regarding the operational state of a power source, load, and a clutch interposed therebetween. The data includes the speed of the power source and pressure, temperature and filter conditions of the associated clutch.

Abstract: An extended shaft for connecting a standard, transmission mounted power take-off device to an auxiliary device which permits non-interference mounting configurations of the auxiliary device to the power take-off device. The extended shaft further provides mounting bracketry to prevent stresses when thermal expansion or contraction of relevant parts occurs during the operation of the motor vehicle or power take-off device.

Abstract: An actuator for engaging and disengaging parts together which, during actuation may incur an obstacle to engagement, the actuator including a mechanism for incurring the obstacle and automatically stopping actuation, a mechanism for removing the obstacle to engagement and for automatically restarting actuation upon removal of the obstacle thereby to achieve engagement.

Abstract: An extended shaft for connecting a standard, transmission mounted power take-off device to an auxiliary device, which permits non-interference mounting configurations of the auxiliary device on a transmission. The extended shaft further provides mounting bracketry to prevent stresses when thermal expansion or contraction of relevant parts occurs during the operation of the motor vehicle or power take-off device.

Abstract: A transmission including a torque converter to transfer power from a driving engine to a driven device through a series of fluidly-activated clutches, particularly for use with industrial applications. By using a self-contained fluid system to engage the clutch at the idle speed of the driving engine, the transmission is provided with a positive neutral feature. The transmission is adaptable to all industrial engine housings. Additional optional features of the transmission include an auxiliary drive, a reverse and single or additional forward gears, and a fluid cooler. The transmission further includes a transmission output shaft supported by a bearing assembly that may be designed for side loading. The transmission provides the benefits of increased performance in torque demanding applications, self-lubricating features that eliminate grease fittings, load dampening, an auxiliary drive, and a throttle/clutch engagement system that eliminates clutch damage caused by improper high speed engagement.

Abstract: A control system is disclosed for controlling a power takeoff (PTO) shaft of a work vehicle (e.g., a tractor). The work vehicle includes an engine and an operator station, and the PTO shaft transfers power from the engine to an implement. The control system includes a remote switch, a vehicle speed sensor, and a control circuit. The remote switch is located remotely from the operator station and provides a remote switch signal to the control circuit to engage and disengage rotational movement of the PTO shaft. The vehicle speed sensor provides a vehicle speed signal to the control circuit representative of a speed of the work vehicle. The control circuit receives the remote switch signal and the vehicle speed signal and, when the vehicle speed signal exceeds a predetermined vehicle speed, the control circuit prevents engagement and disengagement of the PTO shaft with the remote switch.