Class / Patent application number | Description | Number of patent applications / Date published |
123410110 | Air impeller | 44 |
20090007856 | Control Device for Vehicle, Control Method for Vehicle, and Method for Estimating Power Consumption of Cooling Fan - Along with a rotational speed sensor being fitted to the crank shaft of an engine, a rotational speed sensor is fitted to a cooling fan; and the energy consumption of the cooling fan is estimated by using a map based upon an engine rotational speed (a pulley rotational speed Np) and a fan rotational speed Nf which have been detected by these rotational speed sensors. By controlling the operation of the engine based upon the energy consumption of the cooling fan which has been estimated in this manner, it is possible to control the operation of the engine more appropriately. | 01-08-2009 |
20090064946 | FAN DRIVE DEVICE - The invention relates to a fan drive device ( | 03-12-2009 |
20090120386 | Control Apparatus and Control Method for Hydraulically Driven Cooling Fan - An invention relating to a control apparatus and a control method for a hydraulically driven cooling fan for reducing the peak pressure produced upon reversing the switch position of a switching valve, without stopping an engine, and without greatly modifying existing hydraulic circuitry or increasing the apparatus cost. In the invention, in the case that a reversing switch has been operated so as to output a reversal processing commencement instruction signal, control is carried out such that, under the condition that the rotational speed of the engine has decreased to not more than a stipulated rotational speed, capacity adjusting means is controlled, so as to reduce the capacity of a hydraulic pump, and thus reduce the fan rotational speed, and then the switch position of the switching valve is reversed. | 05-14-2009 |
20090159020 | Damage Protected Motor Vehicle Fan - Generally disclosed and claimed is an non-belt driven motor vehicle cooling fan having an interruptible driving force such as electrical or hydraulic driving force. More specifically disclosed is a vehicle cooling fan having an driving force interrupted when the vehicle enters water that may contact the fan. | 06-25-2009 |
20090165736 | Cooling unit - A cooling unit includes a motor, a driving shaft, a first fan, a second fan, and a fan shroud. The driving shaft extends from the motor and is disposed parallel to a core of a heat exchanger. The first fan is disposed to oppose the core for generating air for cooling the core. The first fan has a first rotation shaft connected to the driving shaft through a gear such that the first fan is rotated by the driving shaft. The fan shroud is configured to support the first fan and conduct the air from the core to the first fan. The second fan has a second rotation shaft disposed coaxial with the driving shaft and rotatable with the driving shaft. The second fan is rotated by the driving shaft when the first fan is rotated, thereby to supply the motor with air for cooling the motor. | 07-02-2009 |
20090188450 | SERIES ELECTRIC-MECHANICAL WATER PUMP SYSTEM FOR ENGINE COOLING - A cooling system for an internal combustion engine of a motor vehicle having a rotating member and using coolant in a liquid cooling system, is provided that comprises a radiator for dissipating the heat from the coolant, an electric pump for pumping the coolant through the cooling system, a mechanical pump operatively connected to the rotating member for pumping coolant through the cooling system, and a clutch for disengaging the second pump for minimizing the parasitic loss of the system and improving total fuel economy of the vehicle. | 07-30-2009 |
20090266313 | FAN SYSTEM AND A METHOD FOR CONTROLLING A FAN MOTOR - The invention relates to a fan system for a controllably cooling a vehicle internal combustion engine comprising an electric fan motor and a control unit for controlling said fan motor, wherein said control unit controls the fan motor according to a regulation correcting variable dependent on a desired cooling power, the control unit is constructed in such a way that it controls the fan motor independently of the desired cooling power at a determined moment with a regulation-correcting variable increased with respect to a correcting variable for a predetermined space of time. | 10-29-2009 |
20100107996 | WORK VEHICLE AND CONTROL METHOD FOR WORK VEHICLE - A work vehicle is provided with an engine, a traveling device driven by driving force from the engine to cause the work vehicle to travel, a first hydraulic pump driven by the driving force from the engine to discharge hydraulic oil, and a cooling device having a cooling fan driven by the hydraulic oil supplied by the first hydraulic pump to cool the engine, and a control unit. The control unit performs a normal cooling control in which an upper limit fan speed is determined based on an engine speed, and a cooling suppression control in which the upper limit fan speed determined based on the engine speed is suppressed to be less than the upper limit fan speed during the normal cooling control when a predetermined operation required to increase the engine speed is performed. | 05-06-2010 |
20100326376 | METHOD AND ARRANGEMENT FOR CONTROL OF COOLING AND AN ENGINE - Method for control of cooling by means of an air flow configuration of a motor vehicle's cooling fan ( | 12-30-2010 |
20110203538 | CONDENSER FAN CONTROL SYSTEM - A method of controlling a fan for cooling a condenser in an air conditioning system is provided. A compressor serves to drive a refrigerant around a fluid circuit which includes the condenser. The duty cycle of the compressor is measured over a period of time to determine a utilisation ratio which reflects the demand on the air conditioning system at that time. The fan is driven at a speed which is no lower than a minimum fan speed which is associated with the calculated utilisation ratio and ambient temperature. Therefore, the demand on the system is determined and exploited without any additional pressure sensors. | 08-25-2011 |
20110203539 | COOL LOGIC WITH AN INTEGRATED COOLER INTO THE CLUTCH/ENGINE BASE - A hydraulically controlled fan drive system is provided including a housing containing a hydraulic fluid, a pulley connected to the housing a fan shaft rotatably mounted to the housing by a hydraulically actuated clutch, a piston mounted within a piston housing for actuating the clutch, a pitot tube for delivering pressurized hydraulic fluid from the housing to the piston housing, a valve for controlling the fluid pressure within the piston housing, a shaft rotationally supporting the housing having passages extending through the pulley, a base connected with the shaft connecting the shaft with a structure, the base having coolant inlet and outlet, and an oil cooler connected with the base on a side of said base generally axially opposite of the pulley. | 08-25-2011 |
20110209676 | ELECTRO-HYDRAULIC PRESSURE CONTROL FAN DRIVE SYSTEM WITH ELECTRICAL FAILURE MODE OPERATION - A fan drive system is provided that is hydraulically controlled having an electrical failure mode wherein midrange operation of the fan drive system is maintained. Accordingly, in the failure mode, a fan drive system hydraulic relief valve is not closed thereby ensuring a degree of operation of the fan drive system even during periods of electrical failure. | 09-01-2011 |
20120017856 | SYSTEMS AND METHODS FOR AVOIDING RESONANCES EXCITED BY ROTATING COMPONENTS - A system for operating a rotating component. The system includes a rotating component, a motor driving the rotating component, a sensor detecting a stimulus related to the rotating component, and a controller. The controller receives an indication of the magnitude of the stimulus from the sensor and is configured to adjust a speed of the rotating component when the stimulus indicates the rotating component is operating at a resonant frequency. | 01-26-2012 |
20120060777 | Hydrostatic Fan Drive - A hydrostatic fan drive for internal combustion engines is disclosed, having a primary unit that can be driven by the internal combustion engine, and having a fan motor by means of which a blower fan can be driven. A hydraulic reservoir is disposed at a high-pressure line connecting the primary unit to the fan motor. A hybrid fan drive for internal combustion engines is thus provided, allowing fan operation even if the internal combustion engine is switched off. An increased maximal available power of the internal combustion engine is available in transition, despite the fan operation, because the fan motor can be supplied with pressurized media by the hydraulic reservoir in such cases (in transition). | 03-15-2012 |
20120137993 | APPARATUS OF COOLING SYSTEM FOR VEHICLE AND CONTROLLING METHOD USING THE SAME - A cooling system of a vehicle may include a high and low temperature radiators that cool a high and low temperature coolants respectively circulating an engine and passing a water cooled intercooler and a low exhaust gas recirculation cooler of a turbo charger, a cooling fan that blows air to the high temperature radiator and the low temperature radiator, a high temperature coolant pump that pumps the high temperature coolant, a low temperature coolant pump that pumps the low temperature coolant, and a control portion that controls the high temperature coolant pump, the low temperature coolant pump, and the cooling fan according to driving conditions of the vehicle and environmental conditions. A controlling method may include detecting driving conditions of the vehicle and environmental conditions, setting an operating target for the cooling system and/or a lubrication system, and determining operating conditions for the cooling system and/or the lubrication system. | 06-07-2012 |
20120240878 | Internal combustion engine with fan system - In an internal combustion engine cooling system, wherein a fan with an adjustable cooling performance is provided with a fan wheel having a hub with radial fan blades pivotally supported on the hub, a control piston is disposed in the hub and connected to the blades for the pivot position adjustment thereof over a range from a suction position to a blowing position including a neutral position in which the blades are oriented in a plane including the axis of rotation of the fan wheel under the control of a control unit causing movement of the piston for pivoting the blades to a position for a cooling performance adjusted to the engine requirements. The system is simple, safe and efficient and permits counter flow operation of the fan for cleaning purposes. | 09-27-2012 |
20130180479 | VEHICLE HAVING A COMPONENT COOLED BY MEANS OF A COOLING AIR MASS FLOW - A vehicle has at least one component which is cooled by a cooling air mass flow delivered from a conveying device such as a fan or a spoiler. A nominal value is predetermined for the cooling air mass flow which, for an assumed maximum thermal loading of the component, cools adequately for operation of the component. A control device controls an intensity of the cooling air mass flow and dimensions it, taking into consideration thermal demands of the component at least in an upper driving speed range, such that a sum of a power consumption of the component, of the conveying device and of a portion of a traction power of the vehicle that is allotted to the delivery of the cooling air mass flow is smaller than a sum of the power consumption of the component, the conveying device and the portion that is allotted to the delivery of the cooling air mass flow at the predetermined nominal value thereof, of a traction power of the vehicle. | 07-18-2013 |
20130186352 | INTERNAL COMBUSTION ENGINE AND STRADDLE-TYPE VEHICLE INCLUDING THE SAME - A forced air-cooled engine includes a crankcase, a cylinder block, a cylinder head, a cooling fan, and a shroud arranged to cover a portion of the crankcase, the cooling fan, and a portion of the cylinder block and a portion of the cylinder head. Fins are provided at least in a region of the cylinder block covered by the shroud. The shroud includes a facing wall portion that faces the fins . An exhaust opening is provided between the facing wall portion and the cylinder block, and opens away from the cooling fan. | 07-25-2013 |
20130186353 | INTERNAL COMBUSTION ENGINE AND STRADDLE-TYPE VEHICLE INCLUDING THE SAME - An engine includes a crankcase, a cylinder block, a cylinder head, a piston, a cooling fan, and a shroud having an inner wall portion and an outer wall portion. A suction port is provided in a region of the outer wall portion facing the cooling fan. The inner and outer wall portions define a duct extending from the suction port to reach at least a portion of the cylinder block and/or at least a portion of the cylinder head. | 07-25-2013 |
20150107539 | ARRANGEMENT AND A METHOD FOR CONTROLLING THE TEMPERATURE OF AIR BEING FED TO A VEHICLE ENGINE - An arrangement for controlling the temperature of air being fed to a vehicle engine includes an engine compartment in which the engine is arranged. The engine compartment is provided with an ambient air intake allowing an airflow into the engine compartment. The engine is provided with an engine air intake arranged inside the engine compartment. The arrangement further includes an air fan for forcing the airflow via the ambient air intake into the inside of the engine compartment. The engine air intake is arranged in a position allowing at least a substantial part of the airflow to enter the engine air intake. | 04-23-2015 |
20160146091 | APPARATUS AND METHOD FOR CONTROLLING COOLING FAN OF VEHICLE - An apparatus and method for controlling a cooling fan of a vehicle are provided. The apparatus includes an information detector that is configured to detect information for operating the cooling fan and a blower assembly including a motor driving the cooling fan and a resistor adjusting a speed of the motor. A relay unit is configured to selectively supply power to the blower assembly. A connecting unit includes a high speed connector that is directly connected to the motor, a low speed connector that is connected to the motor via the resistor, and a ground connector that connects the motor to a ground. Additionally, a controller is configured to operate the relay unit based on the information detected by the information detector. | 05-26-2016 |
123410120 | Temperature-responsive | 23 |
20080257286 | Arrangement for Cooling an Internal Combustion Engine of a Motor Vehicle, in Particular Cooling Module - The invention relates to an arrangement for cooling an internal combustion engine of a motor vehicle, in particular a cooling module ( | 10-23-2008 |
20080282999 | ENGINE FAN CONTROL METHOD AND APPARATUS - A thermal control system for an engine and/or peripheral components is disclosed wherein a fan may be actively coupled and decoupled from an engine's shaft based on a sensed parameter such as engine temperature, alternator temperature and/or supply fuel temperature. In one embodiment, the temperature is sensed at or near the engine thermostat or peripheral component and a controller controls an electromagnetic clutch to cause the fan to engage and disengage a shaft of the engine. | 11-20-2008 |
20080295786 | VARIABLE SPEED FAN DRIVE - The invention relates to a variable speed fan drive. There is a need for a variable speed fan drive with fewer seals and bearings, which is operated by system hydraulic pressure, which has fewer parts and which is simpler to assemble. A variable speed fan drive is provided for a vehicle powered by an internal combustion engine. The fan drive has a driver variable sheave unit, a driven variable sheave unit and a belt engaging both the driver and driven variable sheave units. The driver variable sheave unit includes a driver shaft drivingly coupled to an engine output shaft, a first axially fixed half sheave mounted for rotation with the driver shaft, and a first axially movable half sheave member mounted for rotation with the driver shaft and movable axially on the driver shaft. The first axially movable half sheave member includes a belt engaging flange formed integrally with an axially movable piston member mounted for rotation with the driver shaft and movable axially in response to hydraulic pressure. | 12-04-2008 |
20090025661 | COOLING FAN DRIVE SYSTEM FOR TRAVEL TYPE WORKING MACHINE - In a cooling fan drive system for a travel type working machine, the rotational speed of a cooling fan is controlled to the optimum rotational speed in accordance with temperature increase of the temperature of an engine cooling water, and the engine rotational speed is smoothly increased when the engine rotational speed is increased under travel acceleration. A fourth fan target rotational speed calculator | 01-29-2009 |
20090107424 | System and Method for Controlling the Temperature of the Engine Oil of an Internal Combustion Engine of a Motor Vehicle - A system and method for controlling the temperature of the engine oil of an internal combustion engine of a motor vehicle are provided. The system includes an engine oil circuit for controlling the temperature of the engine oil, which engine oil circuit includes the internal combustion engine and a coolant/engine-oil heat exchanger; and a coolant circuit for controlling the temperature of the internal combustion engine, which coolant circuit in a main branch, includes the internal combustion engine, a coolant cooler and a first coolant pump and, in an auxiliary branch downstream of the coolant cooler, includes the coolant/engine-oil heat exchanger and a second coolant pump. The heat of the engine oil can thereby be dissipated via the coolant/engine-oil heat exchanger to the coolant and further via the coolant cooler to the environment. Specifically, in the case of a limited cooling capacity of the air/engine-oil cooler, it is thereby possible by the low temperature coolant and by the pumped coolant quantity to ensure suitable engine oil temperature control. | 04-30-2009 |
20090145376 | Control Device for Hydraulically Driven Fan - A control device for a hydraulically driven fan is provided with a cooling fan which is rotated by a hydraulic motor and carries out ventilation for cooling a working fluid. Further, the control device for the hydraulically driven fan is provided with a sensor for detecting a temperature of the working fluid, and a lever switch for detecting whether a working mechanism actuated by the engine is in a stopped state, by determining whether a working machine lever has been operated. In order that a resonance between the cooling fan and the engine is suppressed, the control device for the hydraulically driven fan further adjusts a rotating speed of the hydraulic motor in correspondence to a detection result by the lever switch. In the case that a stopped state of the working mechanism is detected on the basis of an operation state of the working machine lever by the lever switch, the rotating speed of the hydraulic motor is adjusted. Accordingly, it is possible to adjust and change the rotating speed of the cooling fan, thus it is possible to prevent resonance noise and vibration from being generated between the cooling fan and the engine. | 06-11-2009 |
20090159021 | COOLING FAN ARRANGEMENT AT A VEHICLE - A radiator fan arrangement for a vehicle which is powered by a combustion engine. The radiator fan arrangement includes at least one cooling element for cooling a medium, and a first radiator fan for continuously generating a forced air flow through at least one first region of the cooling element in order to cool the medium during operation of the combustion engine. The radiator fan arrangement also includes at least one extra radiator fan for being activated to generate an increased air flow through at least one second region of said cooling element in situations where the first radiator fan cannot provide sufficient air flow to cool as necessary the medium in the cooling element. | 06-25-2009 |
20090241865 | Electric cooling fan control based on known vehicle load conditions - A method of controlling a cooling fan for an engine of a vehicle may entail determining an engine coolant temperature, providing a normal load operation mode for the cooling fan and a high load operation mode for the cooling fan, determining whether a tow-haul operation is selected within the vehicle, determining a vehicle load of the vehicle by detecting whether a towing load sensor is activated or not activated, determining whether a vehicle load threshold is reached based upon activation of the towing load sensor, and operating the cooling fan. Operating the cooling fan may be based on the coolant temperature and one of the normal load operation mode and the high load operation mode. Operating the cooling fan in the normal load operation mode may mean reducing a cooling fan operation frequency and decreasing a cooling fan operation percentage over a predetermined coolant temperature range. | 10-01-2009 |
20100064991 | CONTROL DEVICE FOR COOLING FAN FOR VEHICLE - A cooling-fan control device for a vehicle that increases the cooling capacity of a cooling oil that cools a brake rapidly and inhibits a brake damage in a case where the brake is applied during traveling or, in addition to the above-described problem-to-be-resolved, suppresses engine horsepower consumption and avoids consumption increase, while increasing the cooling capacity of the brake cooling oil. The rotation speed of the cooling fan is controlled to obtain the higher target rotation speed of a first target rotation speed corresponding to a detected cooling oil temperature and a second target rotation speed corresponding to a detected brake operation amount. The present invention is applicable to a vehicle in which an engine power is distributed to a travel power train and a hydraulic pump, drive wheels are operated via the travel power train, and the cooling fan is actuated via the hydraulic pump. | 03-18-2010 |
20100107997 | Cooling device for vehicle - A cooling device for a vehicle is provided at a vehicle comprising an engine control unit which stops an engine due to establishment of engine stoppage conditions and restarts the engine due to establishment of engine restart conditions. The cooling device for a vehicle is able to cool a coolant within a heat exchanger for cooling by cooling wind, which is guided from an exterior of the vehicle, passing through the heat exchanger for cooling. Cooling by driving force of either one of an electric motor or the engine can be selected in accordance with preset conditions. | 05-06-2010 |
20110011356 | Fan Drive Controlling Device and Construction Machine - A fan drive control device includes: a hydraulic motor driving a cooling fan by a hydraulic oil supplied from a hydraulic pump driven by an engine; a flow rate adjuster adjusting a flow rate of the hydraulic oil flowed into the hydraulic motor; a temperature sensor detecting a temperature of a fluid cooled by a cooling fan; an accelerator pedal angle sensor detecting an accelerator pedal angle for controlling an engine power based on a detected value by the temperature sensor; a target flow rate setting unit setting a target flow rate of the hydraulic oil flowed into the hydraulic motor; a target flow rate compensation unit compensating the target flow rate based on a detected value by the accelerator pedal angle sensor; and a control command generator generating a control command to the flow rate adjuster according to the target flow rate by the target flow rate compensation unit. | 01-20-2011 |
20110132292 | COOLING FAN CONTROL - Methods and systems are provided for reducing aerodynamic drag on a moving vehicle. One example method comprises, during a first vehicle moving condition, operating the cooling fan, and during a second vehicle moving condition, selectively applying a braking torque on the fan. | 06-09-2011 |
20110220042 | COOLING APPARATUS FOR WATER-COOLED ENGINE AND METHOD OF CONTROLLING COOLING APPARATUS FOR WATER-COOLED ENGINE - A cooling apparatus for a water-cooled engine includes a radiator that cools coolant that has been circulated in the engine; a radiator fan that delivers air to the radiator; a determination portion that determines whether the engine is operated under a high load; and a setting portion. If the determination portion determines that the engine is operated under a high load, the setting portion sets an operation rate of the radiator fan at a time point at which the determination portion determines that the engine is operated under a high load, to a value higher than a normal operation rate at the same coolant temperature as a coolant temperature at the time point. | 09-15-2011 |
20120097118 | DEVICE AND METHOD FOR IMPROVING PERFORMANCE OF A MOTOR VEHICLE - A method for improving the performance of a motor vehicle which has a cooler and a fan for cooling the vehicle's engine, the method includes detecting (s | 04-26-2012 |
20120260867 | CONTROL SYSTEM HAVING VARIABLE-SPEED ENGINE-DRIVE FAN - A control system for use with a machine having an engine is disclosed. The control system may have a cooling circuit, a heat exchanger associated with the cooling circuit, and a sensor configured to generate a signal indicative of a temperature of the cooling circuit. The cooling system may also have a fan mechanically driven by the engine to direct air through the cooling circuit, and a controller in communication with the sensor and the engine. The controller may be configured to adjust a speed of the engine based on the signal. | 10-18-2012 |
20120285402 | CONTROLLER, FOR USE IN A POWER PLANT HAVING A LIQUID COOLING SYSTEM AND AN AIR COOLING SYSTEM - A controller, for use in a power plant having a liquid cooling system and an air cooling system, comprising one or more inputs, configured to receive a signal from at least one deposit sensor, wherein the signal from the deposit sensor is indicative of deposits in the liquid cooling system; and one or more processors, configured to process the signal received from the deposit sensor to control the air cooling system. | 11-15-2012 |
20120304944 | ENGINE SYSTEM WITH REVERSIBLE FAN - An engine system includes an engine, a primary pump coupled to the engine, and a motor fluidly connected to the primary pump. The engine system further includes a heat exchanger fluidly connected to the engine, the heat exchanger configured to accept heated coolant from the engine and deliver cooled coolant to the engine. The engine system also includes a fan driven by the motor in either a forward or a reverse mode of operation, the fan configured to pull air toward the heat exchanger in a first direction during the forward mode of operation to assist in cooling the coolant, and to push air toward the heat exchanger in a second direction opposite the first direction during the reverse mode of operation. The engine system further includes a controller configured to operate the fan in the reverse mode of operation in response to a sensed temperature of the coolant and a speed of the fan in the forward mode of operation. | 12-06-2012 |
20140109846 | ENGINE COOLING FAN TO REDUCE CHARGE AIR COOLER CORROSION - Methods and systems are provided for reducing corrosion of a charge air cooler and preventing engine misfire due to condensate formation. In response to condensate forming in a charge air cooler, engine cooling fan operation is adjusted. Engine cooling fan operation may also be controlled in response to vehicle operating conditions. | 04-24-2014 |
20150330281 | WORK VEHICLE AND METHOD OF CONTROLLING WORK VEHICLE - A work vehicle includes an engine, an exhaust gas purification apparatus, a reducing agent tank, an engine coolant circuit, a branch path, a valve, an accepting portion, a valve control unit, a fan, a radiator, a thermostat, and a fan control unit. The valve control unit gives an instruction for an opening operation of the valve in response to the operation instruction from the operator accepted by the accepting portion. The fan generates cooling wind in an engine room. The radiator cools the engine coolant with the cooling wind. The thermostat is provided between the circulation path and the radiator and operates to open for supplying the engine coolant to the radiator when a temperature of the engine coolant is equal to or higher than a prescribed temperature. The fan control unit increases the number of rotations of the fan in response to the operation instruction. | 11-19-2015 |
20150330287 | ENGINE COOLING FAN CONTROL STRATEGY - An engine cooling fan control strategy includes measuring an engine coolant temperature using a sensor connected to the engine, measuring an engine oil temperature using a sensor connected to the engine, selecting a first value from a maximum engine coolant temperature threshold calibration curve stored in the control system based on the engine oil temperature, selecting a second value from a minimum engine coolant temperature threshold calibration curve stored in the control system based on the engine oil temperature, and placing the engine cooling fan in driven relationship with the engine when the engine coolant temperature exceeds the first value, and placing the engine cooling fan in non-driven relationship with the engine when the engine coolant temperature drops below the second value. | 11-19-2015 |
20160089957 | AC SYSTEM WITH PROPORTIONAL CONTROLLED HYDRAULIC FAN - A system and method for improving the operation of a cooling system and AC system for an engine, without sacrificing engine performance is disclosed. The system includes a cooling module positioned within an engine compartment of the vehicle, a cooling fan mounted in front of the cooling module, and a control strategy for controlling operation of the cooling fan based on engine conditions. The system includes incorporating at least one sensor, include a pressure sensor installed within the high pressure side of the AC system. The method includes providing an AC system having a high pressure side and a low pressure side, providing at least one sensor on the high pressure side for producing an electrical signal in response to an operating condition, determining which sensor has a highest electrical signal value for controlling the speed of the fan. | 03-31-2016 |
20160102597 | METHOD FOR COMBINED PREHEATING AND COOLING OF A COOLANT - A method for cooling a coolant for waste heat cooling of an internal combustion engine is described for an agricultural working vehicle. The method includes providing a heat exchanger through which coolant flows and an air delivery means generates an air flow through the heat exchanger. | 04-14-2016 |
20160123215 | Method and device for operating an engine compartment fan for a motor vehicle - A method for operating an engine compartment fan for an engine compartment of a motor vehicle, in which at least one component, in particular for the drive of the motor vehicle, is situated, including the following: ascertaining a present engine compartment temperature as a function of a thermal energy input into the engine compartment and a thermal energy discharge out of the engine compartment; and activating the engine compartment fan as a function of the ascertained present engine compartment temperature. | 05-05-2016 |