A ventilator having a rotor is mounted in a rotatable manner around an axis of rotation. The rotor includes a plurality of blade-like rotor blades arranged around the axis of rotation. The ventilator includes a sensor device for detecting an object approaching one of the plurality of rotor blades, and a control device that receives signals from the sensor device. The control device extrapolates a trajectory of the object from a position x and a speed v of the object, and adjusts an angular position or rotational speed n of the rotor to allow the object to continue moving along its trajectory without colliding with one of the plurality of rotor blades.

A ventilator having a rotor is mounted in a rotatable manner around an axis of rotation. The rotor includes a plurality of blade-like rotor blades arranged around the axis of rotation. The ventilator includes a sensor device for detecting an object approaching one of the plurality of rotor blades, and a control device that receives signals from the sensor device. The control device extrapolates a trajectory of the object from a position x and a speed v of the object, and adjusts an angular position or rotational speed n of the rotor to allow the object to continue moving along its trajectory without colliding with one of the plurality of rotor blades.

A torque transfer apparatus and method of use is described. The apparatus comprises a plurality of elements assembled together to form a ring structure oriented in a plane around a longitudinal axis. The ring structure defines a first engagement surface. A structure defining a second engagement surface is rotatable with respect to the ring structure. The ring structure is operable to be moved between a collapsed condition and an expanded condition by movement of the plurality of elements, and movement between the collapsed condition and the expanded condition engages or disengages the first and second engagement surfaces. The apparatus can be configured to transfer a driving torque (e.g. a clutch) or a braking force (e.g. a torque brake).

The invention concerns a disc brake arrangement for a vehicle, the disc brake arrangement comprising: a brake disc that is rotatable about a rotational axis; and at least one brake pad, wherein the brake disc comprises a disc member and a brake lining at an outer circumferential face of the disc member and wherein the brake pad is displaceable relative to the brake lining, so as to contact the brake lining during braking for generating a brake force.

The invention concerns a disc brake arrangement for a vehicle, the disc brake arrangement comprising: a brake disc that is rotatable about a rotational axis; and at least one brake pad, wherein the brake disc comprises a disc member and a brake lining at an outer circumferential face of the disc member and wherein the brake pad is displaceable relative to the brake lining, so as to contact the brake lining during braking for generating a brake force.

A ventilator having a rotor is mounted in a rotatable manner around an axis of rotation. The rotor includes a plurality of blade-like rotor blades arranged around the axis of rotation. The ventilator includes a sensor device for detecting an object approaching one of the plurality of rotor blades, and a control device that receives signals from the sensor device. The control device extrapolates a trajectory of the object from a position x and a speed v of the object, and adjusts an angular position or rotational speed n of the rotor to allow the object to continue moving along its trajectory without colliding with one of the plurality of rotor blades.

A ventilator having a rotor is mounted in a rotatable manner around an axis of rotation. The rotor includes a plurality of blade-like rotor blades arranged around the axis of rotation. The ventilator includes a sensor device for detecting an object approaching one of the plurality of rotor blades, and a control device that receives signals from the sensor device. The control device extrapolates a trajectory of the object from a position x and a speed v of the object, and adjusts an angular position or rotational speed n of the rotor to allow the object to continue moving along its trajectory without colliding with one of the plurality of rotor blades.

In the vehicle control system, a controller may perform first regenerative control that causes a motor generator to perform regeneration so as to apply a braking force to a vehicle when the accelerator is off and, when the accelerator is off and a steering is turned, perform second regenerative control that causes the motor generator to perform regeneration so as to apply a braking force to the vehicle in order to control the vehicle attitude by generating a deceleration that corresponds to a steering angle in the vehicle in addition to the first regenerative control.

In the vehicle control system, a controller may perform first regenerative control that causes a motor generator to perform regeneration so as to apply a braking force to a vehicle when the accelerator is off and, when the accelerator is off and a steering is turned, perform second regenerative control that causes the motor generator to perform regeneration so as to apply a braking force to the vehicle in order to control the vehicle attitude by generating a deceleration that corresponds to a steering angle in the vehicle in addition to the first regenerative control.

The drive unit is designed to be mounted on a marine vessel, including a mobile housing, and is able to pivot around an axis against the hull of the marine vessel. A drive shaft mounted rotary is against the mobile housing and is supported by two roller bearings. A propulsion element rotates in solidarity with the drive shaft. The propulsion unit has, at the front, at least two braking and locking systems of the drive shaft located in an area between the upstream rolling bearing and propulsion element.