Abstract: A method of operating a cleaning process on a filter in a vehicle air intake includes passing air through the filter from an upstream side to a downstream side, and providing an exhaust duct having an inlet end adjacent the upstream side of the filter and an outlet end adjacent a cooling fan or other air-extraction device of the vehicle arranged to draw air through the exhaust duct from the inlet end to the outlet end. In a periodic cleaning subroutine, the rotational speed of the fan is increased from a first speed to a second speed, while a pulse of pressurized fluid is applied to a downstream side of the filter. The exhaust duct carries away material dislodged from the upstream side of the filter by the applied pulse, and the rotational speed of the fan is reduced to its original level.

Abstract: A method of operating a cleaning process on a filter in a vehicle air intake includes passing air through the filter from an upstream side to a downstream side, and providing an exhaust duct having an inlet end adjacent the upstream side of the filter and an outlet end adjacent a cooling fan or other air-extraction device of the vehicle arranged to draw air through the exhaust duct from the inlet end to the outlet end. In a periodic cleaning subroutine, the rotational speed of the fan is increased from a first speed to a second speed, while a pulse of pressurized fluid is applied to a downstream side of the filter. The exhaust duct carries away material dislodged from the upstream side of the filter by the applied pulse, and the rotational speed of the fan is reduced to its original level.

Abstract: In order to enable more reliable actuation of the entry barrier (8) of a cable car vehicle (5) in a cable car station (2), at least one mechanically actuatable barrier actuation element (24) for actuating the entry barrier (8) is provided on the cable car vehicle (5), and at least one movable actuation component (28, 30) is provided in the barrier actuation apparatus (10). The actuation component (28, 30) is moved by the remote-control unit (11) upon activation of the barrier actuation apparatus (10) in order to exert an actuation force on the barrier actuation element (24), wherein the barrier actuation element (24) is moved by the actuation force in order to actuate the entry barrier (8).

Abstract: A method of operating a cleaning process on a filter in a vehicle air intake includes passing air through the filter from an upstream side to a downstream side, and providing an exhaust duct having an inlet end adjacent the upstream side of the filter and an outlet end adjacent a cooling fan or other air-extraction device of the vehicle arranged to draw air through the exhaust duct from the inlet end to the outlet end. In a periodic cleaning subroutine, the rotational speed of the fan is increased from a first speed to a second speed, while a pulse of pressurized fluid is applied to a downstream side of the filter. The exhaust duct carries away material dislodged from the upstream side of the filter by the applied pulse, and the rotational speed of the fan is reduced to its original level.

Abstract: A cooling unit for an agricultural vehicle has a grid for allowing air to enter the unit while limiting debris and a heat exchanger for transferring heat from a coolant to air passing across the heat exchanger. The cooling unit further has a duct with motor driven fan, and a controller to monitor fan current and operate the fan in alternating directions. The controller generates a heat exchanger blockage warning when desirable fan current thresholds are not achieved.

Abstract: A cooling unit for an agricultural vehicle, the cooling unit including: a grid for allowing air to enter the unit whilst limiting the ingress of debris into the unit, a heat exchanger for transferring heat from a coolant carried within the heat exchanger to air passing across the heat exchanger, a duct situated between the grid and the heat exchanger, a fan situated in the duct, the fan driven by a motor to move air along the duct and across the heat exchanger, a controller in communication with the motor to monitor the current drawn by the motor, wherein the fan is operable by the controller in a first direction to draw air through the grid and across the heat exchanger and in a second direction for a predetermined period of time upon the current drawn by the motor rising above a first predetermined value, and wherein the controller generates a heat exchanger blockage warning in the event that the motor current fails to drop below a second predetermined value upon the subsequent rotation of the fan in the fi