An isolator for isolating a device driven by an engine via an endless drive member is described. The isolator comprises a shaft adapter that is connectable with a shaft of the device, defining a shaft adapter axis, a rotary drive member that is rotatable relative to the shaft adapter and has an endless drive member engagement surface that is engageable with the endless drive member, and an isolation spring arrangement positioned to transfer torque between the shaft adapter and the rotary drive member. The isolation spring arrangement has at least one isolation spring that is axially offset from the endless drive member engagement surface. The at least one isolation spring has an outer edge that is radially outside the endless drive member engagement surface.

An isolator for isolating a device driven by an engine via an endless drive member is described. The isolator comprises a shaft adapter that is connectable with a shaft of the device, defining a shaft adapter axis, a rotary drive member that is rotatable relative to the shaft adapter and has an endless drive member engagement surface that is engageable with the endless drive member, and an isolation spring arrangement positioned to transfer torque between the shaft adapter and the rotary drive member. The isolation spring arrangement has at least one isolation spring that is axially offset from the endless drive member engagement surface. The at least one isolation spring has an outer edge that is radially outside the endless drive member engagement surface.

Methods and systems are provided for controlling a vehicle engine to deliver desired torque to a power take off device coupled to the engine. In one example, the method may include, learning a filtered PTO torque demand during vehicle acceleration, and steady state operation, and during transition in engine states using the learned PTO torque demand to adjust engine speed in order to deliver a desired engine torque output for optimal operation of the PTO device.

Methods and systems are provided for controlling a vehicle engine to deliver desired torque to a power take off device coupled to the engine. In one example, the method may include, learning a filtered PTO torque demand during vehicle acceleration, and steady state operation, and during transition in engine states using the learned PTO torque demand to adjust engine speed in order to deliver a desired engine torque output for optimal operation of the PTO device.

There is provided a belt tension adjusting device for an engine having a chain cover; a mount attaching portion; and a driving belt. An arm is swingably supported about a hinge pin fixed to the engine. A tensioner pulley is supported by the arm to be in contact with the driving belt. An auto tensioner is connected to the arm and configured to press the arm. The auto tensioner is arranged in a space, which is overlapped with the chain cover as viewed from a front side of the engine and located between the mount attaching portion and a crank pulley.

There is provided a belt tension adjusting device for an engine having a chain cover; a mount attaching portion; and a driving belt. An arm is swingably supported about a hinge pin fixed to the engine. A tensioner pulley is supported by the arm to be in contact with the driving belt. An auto tensioner is connected to the arm and configured to press the arm. The auto tensioner is arranged in a space, which is overlapped with the chain cover as viewed from a front side of the engine and located between the mount attaching portion and a crank pulley.

A mobile apparatus includes a main frame, an operating arm connected to the main frame, drive means configured to drive displacing means of the mobile apparatus, such as one or more wheels or tracks, drive means configured to drive the operating arm and a control system, connected to operating instruments for a driver, for controlling the drive means. The drive means for the displacing means includes an electric motor such that the drive of the displacing means is substantially electrical.

A mobile apparatus includes a main frame, an operating arm connected to the main frame, drive means configured to drive displacing means of the mobile apparatus, such as one or more wheels or tracks, drive means configured to drive the operating arm and a control system, connected to operating instruments for a driver, for controlling the drive means. The drive means for the displacing means includes an electric motor such that the drive of the displacing means is substantially electrical.

A vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, and a rechargeable power source can be configured for reduced fuel consumption at idle. The vehicle drive system includes an electric motor in direct or indirect mechanical communication with the first prime mover. The control system causes fuel to be eliminated to the first prime mover while the vehicle is stopped and causes the electric motor to rotate the first prime mover at a speed, thereby reducing fuel consumption at idle for the vehicle.

An implement coupler for a work vehicle includes a support frame having a drive opening and an array of electric machine mounts arranged about the drive opening. A gearbox is mounted on the support frame and has a gearbox shaft extending through the drive opening. At least one drive pulley is coupled to the gearbox for rotation. At least one endless member is disposed about the drive pulley for rotation therewith. A first electric machine is mounted on the support frame at a first of the electric machine mounts and having a first input pulley coupled to the drive pulley by the at least one endless member.