Abstract: The present disclosure is directed to a fan section positioned on a tail section of an aircraft, in which the fan section defines a circumferential direction, a radial direction, and an axial direction. The fan section includes a fan and a nacelle. The fan includes a plurality of fan blades and a fan shaft, in which the plurality of fan blades are rotatable with the shaft. The nacelle includes a wall at least partially enclosing the fan. The wall includes a first portion and a second portion. The first portion translates relative to the second portion between a first, closed position in which the wall of the nacelle circumferentially encloses the fan and a second, open position in which at least a portion of the fan is unenclosed by the wall of the nacelle.

Abstract: A cowl for use in a nacelle is provided. The nacelle at least partially surrounds an engine that extends circumferentially about an axially-extending engine centerline. The cowl includes a first side portion and a second side portion. The first and second side portions each are pivotably connected to the nacelle proximate a top of the nacelle. The first and second side portions are configured so that they abut one another to form an external split line proximate the top of the nacelle.

Abstract: Bi-directional nacelle ventilation and cooling systems for use with aircraft and related methods are disclosed. An example apparatus includes a passageway to fluidly couple an opening formed in a nacelle of an aircraft engine and an engine compartment of the nacelle. The opening provides an inlet into the engine compartment when passive airflow is available to vent or cool the engine compartment and the opening to provide an outlet from the engine compartment when forced air is needed to vent or cool the engine compartment. A fan is positioned in the passageway to provide the forced air when the passive air is unavailable.

Abstract: A cooling circuit for a liquid-cooled internal combustion engine for motor vehicles, includes a main cooling circuit including a feed line leading to a radiator and a return line, and a bypass line, which bypasses the radiator and can be controlled as a function of temperature and secondary cooling circuit for a retarder of a braking device of the motor vehicle, which is connected, likewise by a feed line, a return line and a control valve, to the main cooling circuit. The two cooling circuits (2, 3) can be controlled by a single rotary slide valve (10). Both cooling circuits (2, 3) are interconnected in such a way that the flow rates thereof to the radiator (6) and/or to the retarder (4) can be varied in a predetermined or defined manner, in particular between 0% and 100%.

Abstract: A cooling circuit for a liquid-cooled internal combustion engine for motor vehicles, includes a main cooling circuit including a feed line leading to a radiator and a return line, and a bypass line, which bypasses the radiator and can be controlled as a function of temperature and secondary cooling circuit for a retarder of a braking device of the motor vehicle, which is connected, likewise by a feed line, a return line and a control valve, to the main cooling circuit. The two cooling circuits (2, 3) can be controlled by a single rotary slide valve (10). Both cooling circuits (2, 3) are interconnected in such a way that the flow rates thereof to the radiator (6) and/or to the retarder (4) can be varied in a predetermined or defined manner, in particular between 0% and 100%.

Abstract: A cooling apparatus for an internal combustion engine is provided in which a temperature detecting tip of a temperature sensor is arranged in a position where flow of a coolant is smooth, to thereby improve a measurement accuracy of coolant temperature. A thermoelement assembly 13 and the temperature sensor 17 which detects the temperature of the coolant are accommodated in the housing 11 arranged at a return channel of the coolant which flows from a radiator to a coolant inflow part of the engine. The temperature detecting tip 17a of the temperature sensor 17 is arranged to face the inside of a circulation hole 12 of the housing 11 between a valve body 23 which constitutes the thermoelement assembly and a frame support part formed in the circulation hole 12 of the housing 11.

Abstract: At least one cooling device for a motor vehicle is aircooled by an air flow generated by a cooling fan of the motor vehicle. An air flow configuration of the cooling fan is determined by the fan's degree of protrusion from a fan ring running in the circumferential direction of the fan, preferably in air flow communication with a fan cowling. The air flow configuration is optimized in a manner controlled according to need by relocation of a movable portion of the fan ring in an axial direction of the fan. The disclosed method of controlling the air flow configuration is summarized above. A device performing the method and an engine for the motor vehicle including the device are also disclosed.

Abstract: A cooling fan (10) for a vehicle engine (50), having a fan casing (60) and a fan rotor (12) which is movable axially relative to the fan casing during operation. There is an actuator (20) for moving the fan rotor (12) to positions which represent various degrees of protrusion (a) from an end of the fan casing (60) in order to optimise the fan's suction capacity and efficiency on the basis of current operating parameters such as fan speed and vehicle velocity.

Abstract: A motor vehicle is provided with a conveyor structure that conveys the entire flow of air that traverses the radiator downwards and then longitudinally underneath the floor panel of the motor vehicle, preventing said flow from traversing the engine compartment and obtaining a consequent reduction in the aerodynamic resistance of the motor vehicle. Associated to the aforesaid conveyor structure are active and passive fins for enabling an adequate cooling of the components of the engine unit or electronic components associated thereto during given operating conditions.

Abstract: A cooler device for a motor vehicle including a charge air cooler with a first cooler element, an EGR cooler with a second cooler element arranged substantially in plane with the first cooler element is disclosed. A screening device regulates air flow through the cooler elements. A control mechanism is operable to switch the screening device to and from between an open position and a closed position. A first screening portion allows more air to pass through than a second screening portion when the screening device is in the closed position such that air flow through the first cooler element is limited to a lesser extent than through the second cooler element in the closed position.

Abstract: A cooling fan (10) for a vehicle engine (50), having a fan casing (60) and a fan rotor (12) which is movable axially relative to the fan casing during operation. There is an actuator (20) for moving the fan rotor (12) to positions which represent various degrees of protrusion (a) from an end of the fan casing (60) in order to optimise the fan's suction capacity and efficiency on the basis of current operating parameters such as fan speed and vehicle velocity.

Abstract: An embodiment of a high-performance car having a car body; at least one member for cooling; at least one cooling duct extending between an inlet opening and an outlet opening, both formed through the car body, to conduct outside cooling air through the member for cooling; and at least one blow duct which terminates at a blow opening, formed through the car body, to direct an air jet which interacts with the airflow about the car body to alter the streamline configuration of the car; the blow duct originates at an initial portion of the cooling duct, upstream from the member for cooling, and has a deflecting device which can be activated to divert at least part of the air in the cooling duct to the blow duct.

Abstract: An apparatus for controlling airflow to and a temperature of an engine may employ a radiator with liquid coolant, a first roller positioned parallel to an inlet tank and a second roller positioned parallel to an outlet tank, and a single film shutter that winds upon each roller. Thin strip leaders define gaps for airflow to reach the radiator. A method of controlling an open position of the film shutter may entail calculating a first film shutter open position based upon an engine coolant temperature, calculating a second film shutter open position based upon an air conditioning output pressure, comparing the first film shutter open position to the second film shutter open position, determining the larger open position, and moving the film shutter to the larger open position to expose a greater radiator surface area than the smaller open position.

Abstract: To reduce noise caused by exhausted cooling air as well as to maintain a necessary amount of cooling air of a cooling fan. A cooling fan is positioned behind a radiator. A shroud surrounds an impeller coupled to a motor and a rotating shaft. The shroud has an inlet and an outlet in the shape of a bell mouth. The bell mouth shaped inlet has its front edge spaced from the rear surface of the radiator by a clearance D, and forms a space around its front peripheral edge. A space is formed via the space, and opens around the periphery of the shroud. The ratio A:B is 1:3 to 5, preferably approximately 1:4, where A denotes a difference between maximum and minimum diameters of the bell mouth shaped outlet of the shroud, and B notes a length of the shroud.