Abstract: Embodiments of wheel spoking systems and methods of manufacturing and installing. An electrically motorized wheel can include a wheel rim, a wheel hub, and a plurality of wheel spokes connecting the wheel rim to the wheel hub wherein first and second ends of each of the plurality of wheel spokes are connected to the wheel rim and a curved portion of each of the plurality of wheel spokes interface with curved spoke pockets of the wheel hub.

Abstract: A gear change mechanism for a bicycle may involve a tensioner that has a wheel engaged with a chain in a bicycle drivetrain. This tensioner may be configured to rotate or otherwise change orientation in response to slack in the chain to maintain tension in the chain. A sensor may be used to measure the orientation of a tensioner of a chain in a bicycle drivetrain, and/or the physical orientation of components indicative thereof. Actions may be triggered by signals generated by the sensor.

Abstract: A shifting assembly for shifting a roller chain between a plurality of front chain wheels for a bicycle that includes a smaller chain wheel, a larger chain wheel and a chain derailleur having a channel on an inner guide plate. The channel has an elevation that comes into contact with a chain rise rivet on the larger chain wheel in the state of starting to shift the roller chain from the smaller chain wheel to the adjacent larger chain wheel, viewed in a direction parallel to the axis of rotation of the chain wheels.

Abstract: Apparatus and associated methods relate to remote control over a number of degrees of freedom of coupling between a first suspension member and a second suspension member. In an illustrative embodiment, when in an uncoupled state, the first suspension member may move substantially independently of any motion of the second suspension member. When in a coupled state, for example, the first suspension member may move in response to movement of the second suspension member. In some embodiments, the coupling between members may be altered by selectively permitting at least one degree of freedom of motion of the suspension system. For example, in some systems, a variable shock absorber may be selectively set to a fixed length in response to a control system signal. A remotely coupled suspension system may advantageously provide dynamically controllable suspension configurations for various riding conditions.

Abstract: A hull that is part of a system for producing energy through the action of waves. The hull's shape, dimension and orientation make the system less costly and increase the energy provided by the system.

Abstract: An extendable and retractable lower deck for a watercraft is attached to and supported by one or more amidships hulls. The lower deck and hulls slide between an extended position and a stowed position on rails that are secured to the underside frame of the main, upper deck that is supported by abeam hulls. When fully extended, the extendable deck remains attached to the watercraft. A rotatable gate positioned within the lower hull can be used for improved accessibility to and from the water; the gate is stowed when its distal end is in the raised position and is deployed when its distal end extends below the bottom side of the hull into the water in the lowered position. Laterally expandable panels in the lower deck provide increased width, and other accessories used with the watercraft can be contained in one or more storage holds in the amidships hull.

Abstract: A submersible remotely operated vehicle with a streamlined shape, which uses an internal support lattice to provide pressure resistance. By using a lattice frame to distribute the water pressure load on the vehicle, the vehicle may be constructed of thin-walled, injection molded plastic, yet may be capable of diving to significant depths. The vehicle may provide pitch control using a single vertical thrust actuator that is horizontally fore or aft of the center of vertical drag; this efficient pitch control improves hydrodynamic efficiency by pointing the vehicle towards the direction of travel to minimize the coefficient of drag. The vehicle may communicate wirelessly with a remote operator via a communications buoy tethered to the vehicle, thereby eliminating cabling constraints on the vehicle's range from the operator. The tether may be connected to the buoy using a waterproof connector that presses three terminals surrounded by a compliant seal onto mating contacts.

Abstract: A shape shifting foil alters the shape of a fluid foil contour by rotating a leading edge structure. A skin that forms the fluid foil contour is at least partially attached to the leading edge structure, and is wrapped around the leading edge structure so two edges of the skin form the trailing edge of the fluid foil. The two edges forming the trailing edge slide with respect to one another, thereby permitting the skin to shift when the leading edge structure is rotated.

Abstract: An arrangement for mooring, loading and unloading of a vessel, includes a structure connected to the seabed and a Y-formed yoke for connecting the vessel to the structure, the structure including a stationary inner element adapted to be fixedly connected to the sea bed and an outer element having a rotatable fastening to the inner element, the outer element having a connector for fixing the yoke, wherein the yoke is provided with a pitch articulation to fix the first or mutual end of the yoke to the connector of the outer element and a roll articulation positioned between the pitch articulation and the first and second leg to allow the legs to rotate along the longitudinal axis of the yoke with respect to the pitch articulation.

Abstract: A method of transporting a rigid tie-in connection across a body of water for installation underwater is disclosed. The method includes the step of supporting the tie-in connection in the water by buoyancy acting on a frame that supports the tie-in connection until installation. The buoyancy-supported frame is lowered and the tie-in connection into a sub-surface transit configuration. The method further includes in the transit configuration, towing the buoyancy-supported frame and the tie-in connection behind a towing vessel toward an installation site. Also disclosed is a system for implementing the method. The system includes a towable frame arranged to support the tie-in connection until installation and an external buoyancy attached to the frame by an extensible suspension link arranged to suspend the frame from the buoyancy in water in use. The link is extensible to lower the frame from a raised surface-tow configuration into a lowered sub-surface transit configuration.

Abstract: System including a dead weight and equipment on a trolling line released from and retrieved to a receiving structure of a vessel, the dead weight including a controllable element for blocking and unblocking the line, so as to immobilize the line relative to the dead weight in the blocked configuration, and to allow the line to run relative to the dead weight in the unblocked configuration; a first detection element for detecting whether or not or not the equipment has moved to a predefined distance from the dead weight; a control element configured, in case of an order to release: —in a step 2L, to release the equipment from the structure, —in a step 3L, when the first detection element detects the equipment has moved to the predefined distance, to then release the dead weight and control the blocking and unblocking element to shift to the blocked configuration.

Abstract: Disclosed herein is an apparatus with a remotely controlled hydraulically actuated platform, upon which a swimmer may stand in order to be raised out of the water or lower into the water. One version comprises a scissor mechanism assembly bolted underneath the swim deck of a boat, a hydraulic cylinder that extends the scissor mechanism, a retracting stand platform attached to the scissor mechanism that can slide inward and under the deck of the boat for storage, a hydraulic power unit, and a wireless remote control. The most preferred embodiment comprises a hydraulic cylinder that extends above the swim deck of a boat, an anchor assembly that is bolted underneath the swim deck of the boat, a stand platform with a handle, a hydraulic power unit, and a wireless remote control that operates the hydraulic unit and lifts a single swimmer into and out of the water.

Abstract: A motorized board similar to a surf board is presented for use on a water surface. The motorized board includes a base board having a front end and a back end, a foot pedal on the base board, wherein the foot pedal is rotatable on the base board, and a motor coupled to the base board and connected to a propeller at the back end, the motor being controlled by the foot pedal. A user can stand on the board and turn the motor on with his foot, as well as control the speed with his foot to ride on a water surface with or without waves.

Abstract: A surfboard bag includes a body having first and second sides, a closed end, and an open end. The body is formed from upper and lower exterior surfaces of a first material and upper and lower interior surfaces of a second, different material. The surfaces of the body are joined to one another along the first and second sides of the body and the closed end of the body so as to define an interior cavity. The open end of the body defines a mouth providing access to the interior cavity. One or more release tabs are disposed on the upper exterior surface of the body and/or the lower exterior surface of the body. The release tab(s) are spaced-apart from the first and second sides of the body and spaced-apart from the open and closed ends of the body. The release tab(s) are configured to facilitate breaking a seal created by board sticking between a surfboard disposed within the interior cavity and the upper exterior surface of the body and/or the lower exterior surface of the body.

Abstract: A marine vessel stabilizer and control including a fin having a stem extending into the hull. An arm is connected to the stem and extends towards a connector which is connected to a rod. A housing is connected to another end of the rod and a screw passes through the housing. A motor is connected to the screw and configured to rotate to rotate the fin. A controller is connected to the motor, a speed sensor, a roll sensor and a fin position sensor such that a control signal can be calculated and the position of the fin can be determined to reduce roll of the vessel both when making headway and when at rest (zero speed). When the vessel is at rest, the fin is be configured to rotate through maximum angles greater than 15 degrees from either side of a neutral position.

Abstract: In some aspects of the disclosure, an attachable lighting device has a lighting assembly which includes a light housing, an attaching base, and one or more optical sources. The light housing is attached to the top of the attaching base and contains the one or more optical sources. The attachable lighting device has a receiving base which is attachable to an attachment surface of a boat. The attaching base is attachable to the receiving base.

Abstract: A watch device includes a processor, a display and a memory. The memory includes instructions for establishing a network connection between the watch device and an electronic GPS mapping computer of a watercraft for transmitting, receiving or displaying data.

Abstract: A drone equipped with a camera, a wireless communication module, an acoustic sensor, a GPS receiver, software and collapsible floatation device patrols above swimmers. The camera and acoustic sensor capture the video and audio of the swimmers. The information is either streamed to a command center or processed by the onboard software. With audio and video analysis capabilities, software is used to detect a swimmer in distress (SID). Alternatively the information is streamed to lifeguard or volunteers all over the world to spot SID. Another detection method is to let swimmer wear a wearable emergency notification device, which sends wireless signals comprising GPS location data. A SID presses a button to indicate rescue request and the drones fly over by GPS signal guidance. Solar power is used as the optional power source of the drones, which would allow the to sustain operation for a prolonged period of time.

Abstract: A personal life raft includes a rigid compartment, a first flexible arm member in sealed engagement with a first port on a first side of the rigid compartment, a second flexible arm member in sealed engagement with a second port on a second side of the rigid compartment. Each of the first flexible arm member and the second flexible arm member are impervious to water or waterproof such that water does not pass therethrough. The rigid compartment has a body chamber therein having a volume to encompass at least an upper torso of a user of the personal life raft. The rigid compartment displaces sufficient water so that the personal life raft is buoyant while in use by the user.

Abstract: An inflatable life raft assembly is disclosed, including a deployable and inflatable life raft that a user can voluntarily and repeatedly deploy from a storage carrier, inflate for use, and fold back into the container after use. The carrier is integrally formed with or permanently attached to the inflatable life raft. A compressed gas cylinder and/or manual inflator or pump can assist the user in inflating the life raft. The storage carrier can automatically open when the life raft inflates, by pressure exerted from within the carrier by the expanding life raft. The inflatable life raft can include one or more gas impervious chambers, such as two or more communicated or isolated air chambers.

Abstract: A stretchable pillowcase with an inflatable pillow or bladder having an attached pouch that can be folded onto itself and enclose the pillow and cover therein during non-usage. But, the pillow and case can be removed from the pouch, the pillow inflated, to provide a cushion use of the pillow for comfort, and to use as a flotation device, for recreational purposes. The pillow is made of a water-proof and inflatable material, such as polymer and rubber, and the case may be formed of a resilient fabric material. Its pouch likewise, is fabricated from an expandable material, to allow it to fold onto itself, and enclose the pillow and case therein, once the former has been deflated. The pillow in this case may contain a bladder, internally thereof, and which can be inflated with air under pressure to add to its comfortable usage. And, a series of the cases may be interlinked together into the formation for multiple shapes and sizes such as a raft, to provide full body support.

Abstract: A method of hosting an autonomous underwater vehicle (“AUV”) at a subsea location lowers at least one AUV basket to a subsea location adjacent at least one preinstalled subsea structure. The subsea structure has provision for electrical power to be provided to it. At the subsea location, the, or each, basket is connected to the, or each, subsea structure to receive electrical power from the subsea structure. Electrical power routed via the subsea structure may be used to charge batteries of an AUV docked with the basket. Provision may also be made to effect data communications with the AUV with data being communicated between the subsea structure and the basket.

Abstract: The present invention is directed towards a fixed positively buoyant manned submersible that includes a plurality of vertical thrusters and a sealed enclosure(s) that can support one or more human passengers. The vertical thrusters can include vertically aligned propellers that are coupled to motors that control the rotational velocity of the propellers. The vertical thrusters to generate a negative vertical thrust to allow the submersible to dive within a body of water. Horizontal movement can be achieved through horizontal thrusters or directing the thrust vectoring of the vertical thrusters.

Abstract: An efficient reverse-thrusting modular propeller combines a center hub and a set of identical and replaceable blades. Each such blade has a radially and laterally symmetrical hydrofoil cross-section but disposed along a full wave (360°) sinusoidal mean camber line. The blades all feature a very strong thicker symmetric hydrofoil cross-section at the propeller root which widens with a longer sinusoidal mean camber line wavelength, and thins in amplitude moving outward, and then the blades narrow again in shorter wavelength and thin more in diminishing amplitudes progressing toward the distal tip. Localized cupping on the leading or trailing edges is ruled-out as undesirable and counterproductive.

Abstract: An outboard marine engine comprises a vertically aligned bank of piston-cylinders; a camshaft that operates a plurality of valves for controlling flow of air with respect to the vertically aligned bank of piston-cylinders, the camshaft vertically extending between a lower camshaft end and an upper camshaft end; and a cam lobe at the upper camshaft end. Rotation of the camshaft causes the cam lobe to cam open an uppermost valve in the plurality of valves. A lubricant circuit extends through the camshaft and has a lubricant outlet located at the upper camshaft end. The lubricant outlet is configured to disperse lubricant onto the uppermost valve, which is located above an uppermost cam bearing bulkhead for the upper camshaft end.

Abstract: An outboard motor has an internal combustion engine and a sump with an interior for holding oil for the internal combustion engine. The interior is defined by a top, a bottom, and sidewalls that extend from the top to the bottom. At least a portion of the sidewalls tapers radially inwardly towards the bottom. An oil pickup conduit extends into the interior and is configured to convey oil from the sump to the internal combustion engine. A bumper is disposed on the oil pickup conduit and separates the oil pickup conduit from the sidewall.

Abstract: A system for controlling trim position of a marine propulsion device on a marine vessel includes a trim actuator having a first end configured to couple to the marine propulsion device and a second end configured to couple to the marine vessel. A controller controls position of the trim actuator between an extended position wherein the propulsion device is trimmed up with respect to the vessel and a retracted position wherein the propulsion device is trimmed down with respect to the vessel. A shock relief mechanism overrides position control by the controller and allows extension of the trim actuator upon the occurrence of an overpressure event. An arresting mechanism, when activated, prevents extension of the trim actuator beyond a certain limit. The controller selectively activates the arresting mechanism in response to a determination that the propulsion device is being commanded in reverse. Methods for controlling trim position are also included.

Abstract: Exhaust systems are for outboard marine engines that are configured to propel a marine vessel in a body of water. An intermediate exhaust conduit is configured to receive the exhaust gas from the primary exhaust conduit. A primary muffler receives the exhaust gas from a intermediate exhaust conduit. A secondary muffler receives the exhaust gas from the primary muffler. An idle relief outlet discharges the exhaust gas from the secondary muffler to atmosphere. A bypass valve is positionable into an open position wherein the exhaust gas is permitted to bypass the secondary muffler and flow from the primary muffler to the idle relief outlet and into a closed position wherein the exhaust gas is not permitted to bypass the secondary muffler and instead flows from the primary muffler to the idle relief outlet via the secondary muffler.

Abstract: An electric actuator comprises a housing and an output shaft reciprocatingly received by the housing. There is a screw assembly disposed within the housing and coupled to the output shaft. The screw assembly includes a plurality of annular rollers and a central screw received by the annular rollers. The annular rollers are rotatable about the central screw. There is a motor which includes a stator and a rotor. The rotor has an inner bore which engages the annular rollers. Rotation of the rotor causes the central screw to translate axially relative to the rotor and the output shaft to reciprocate relative to the housing.

Abstract: The invention relates to a structural element for an aircraft fuselage, generally shaped in the form of a longitudinally elongate section. The element comprises two wings, each wing including: a portion that extends uninterrupted along the entire length of the section, and legs spaced apart from one another and extending from said uninterrupted portion such as to define an opening between two consecutive legs. One of the legs of one wing is arranged to face at least part of the opening defined between two consecutive legs of the other wing. Consequently, the structural element can be produced from a single fibrous preform on a curved tool, minimizing waste material and reducing the weight of said element.

Abstract: A moisture control assembly for use with a support beam extending through an insulation layer is provided. The insulation layer is positioned between an outer wall and an inner wall. The assembly includes: a moisture path close-out structure coupled to the insulation layer at an aperture defined through the insulation layer, the moisture path close-out structure including an opening substantially aligned with the aperture and configured to receive the support beam therethrough; and a coupling mechanism configured to secure the moisture path close-out structure to the support beam such that the moisture path close-out structure is partially pulled away from the insulation layer, the coupling mechanism and the moisture path close-out structure configured to direct liquid flow down and away from the support beam and along the insulation layer.

Abstract: An access device enables controlled or secure communication between different areas of an enclosure and, in the example illustrated in the present application of an aircraft, while providing reduced size. The access device includes at least three mobile walls able to move, independently from one another, to form a closed cylinder, the walls thus being in a so-called security vestibule position, and to overlap at least in twos in order to close off access to one or more areas while concealing the security vestibule, the walls thus being in a so-called retracted position. By overlapping at the access level of said areas that the walls allow to close, the device frees up the adjoining cabin space.

Abstract: An aircraft wing comprising a load transfer apparatus arranged to transfer transverse shear loads from a first component such as a wing skin to a second, adjacent component such as a wing skin. The apparatus comprises a master interlock, and a plurality of slave interlocks. Each master interlock comprises a master male member received in a master female member to form the master interlock. Each of the plurality of slave interlocks comprises a slave male member received in a corresponding female member to form the slave interlocks. The master male and female members are sufficiently stiff that the master male member and the master female member are fixed, whereas the slave male and/or female members are less stiff than the master male and female members such that the slave male and/or female members are able to tolerate some movement, in the transverse direction.

Abstract: A device for controlling the pitch of the blades of a rotor is provided. The device includes a radial shaft, the rotation of which controls the pitch of the blades; a guiding bearing for guiding the radial shaft; a nut which tightens the guiding bearing along the radial axis; and a circumferential rib extending as a protrusion towards the outside of the nut, for guiding a lubrication oil towards the outside of the nut.

Abstract: An apparatus and method for controlling a yaw moment of a flight vehicle, such as an aircraft. A wing structure of the flight vehicle has a first opening or actuator positioned by a first apex section of a first side of the wing, and has a second opening or actuator positioned away from or at a distance from a second apex section of a second side of the wing. The first side and the second side can each be positioned or located opposite a centerline of the wing or wing structure. A pressure source or other pressure supply device is in communication with the first opening or actuator and the second opening or actuator to which a pressurized fluid, such as air, is controlled and delivered to control or vary the yaw moment of the flight vehicle.

Abstract: A method of controlling subsystems of an aircraft. During a preparation step, at least one global order is stored in a database, each global order including an eligibility condition, and at least one global order including an activation condition, each global order specifying a command sequence comprising at least two actions to be implemented one after another or in parallel by two different members. During an initialization step, an onboard computer determines whether a global order is selected automatically or by a pilot. During an activation step, an onboard computer determines, where appropriate, whether the selected global order is feasible. During an implementation step, and providing the selected global order is feasible, the onboard computer performs the actions specified by the selected global order.

Abstract: A lockable actuator has lock segments that move into recesses inside a piston to enable the piston to move. The lock segments may also move radially outwardly from the recesses in the piston to engage a bevel edge of a cylinder housing assembly to lock the piston. Lock rams having ramps force the lock segments radially outwardly into engagement with the bevel edge of the cylinder housing assembly.

Abstract: An aircraft includes a plurality of rotors and a fuselage. The plurality of rotors are attached to the aircraft at a fixed roll angle and a fixed pitch angle and the plurality of rotors rotate independently of one another. The fuselage includes a side wall with a top edge where the top edge of the side wall is higher than the plurality of rotors.

Abstract: A stoppable rotor, which includes a first and second blade and rotates about a substantially vertical axis, is stopped with the first blade pointing forward and the second blade pointing backward while the aircraft is mid-flight. Anti-torque is provided using a set of one or more combination rotors in a first mode of operation in order to counter torque produced by the stoppable rotor when the stoppable rotor is rotating where the set of combination rotors rotate about a substantially longitudinal axis. Forward thrust is provided using the set of combination rotors in a second mode of operation when the stoppable rotor is not rotating.

Abstract: A method of rotorcraft state control includes receiving command input indicative of an intended state change in a rotorcraft. The method also includes issuing command output to a rotor actuation system to carry out the intended state change by varying drag and/or efficiency on one or more rotor blades of the rotorcraft. Issuing command output can include issuing a command output to the rotor actuation system to carry out the intended state change by increasing drag at a substantially constant thrust on one or more rotor blades of the rotorcraft.

Abstract: An air module may be attached to a ground module. The air module may be equipped with a center of gravity effector to change the relative locations and hence the center of gravity of the air and ground modules when the modules are attached. The center of gravity effector may be active or passive or a combination of active and passive. The center of gravity effector may be combined with a center of lift effector to change the relative locations of the center of gravity and center of lift.

Abstract: Technologies for managing assets of a data center include a unmanned aerial vehicle (UAV) communicatively coupled to a remote computing device. The UAV is configured to navigate throughout a data center and capture data center mapping information during the navigation usable to generate a three-dimensional (3D) model of the data center. The UAV is further configured to transmit the captured data center mapping information to a remote computing device. Accordingly, the UAV can receive instructions from a remote computing device that define a type of task to be performed by the UAV in the data center and perform such a task (e.g., a data center map update task, an asset inventory task, a maintenance task, a visual inspection task, etc.) based on the received task instructions. Other embodiments are described and claimed herein.

Abstract: A system and method for a providing a dynamic backhaul. In one example, the system includes a self-positionable wireless device (for example, a drone) including a dual-band radio configured to establish a wireless connection between the self-positionable wireless device and a wireless system. The dual-band radio initiates a narrowband wireless link with the wireless system via a first narrowband antenna of the self-positionable wireless device and a second narrowband antenna of the wireless system. A navigation system generates location, velocity and error estimate of the self-positionable wireless device. The location is transmitted to the wireless system using the narrowband wireless link. The self-positionable wireless device receives via the narrowband wireless link location, velocity and error estimate of the wireless system.

Abstract: In an approach to hazard detection, one or more computer processors receive a request from a first vehicle user for assistance from an unmanned aerial vehicle (UAV). The one or more computer processors locate a UAV. The one or more computer processors determine the location of the first vehicle. The one or more computer processors deploy the UAV to the location of the first vehicle. The one or more computer processors determine whether one or more hazards associated with a path of the first vehicle are detected.

Abstract: A novel two-way splitter having reduced distance between outlets, while enabling smooth, efficient fluid flow (e.g., water flow) is provided. In a variant, the splitter includes a first pipe and a second pipe meeting at an interface near the inlet and extending away from the inlet, wherein portions of the first pipe and the second pipe proximal to the inlet are substantially helical and are intertwined with each other. In another variant, the first and second pipes have first portions proximal to the inlet which extend vertically side by side away from the inlet, such that the width of each first portion decreases and the depth of each first portion increases as a vertical distance from the inlet increases.

Abstract: A load beam for an aerial vehicle comprises an elongate beam with a radial slot and a lug extending from the radial slot. A hook is pivotably connected to the lug. There is a first arm pivotably connected to the beam and a second arm pivotably connected to the beam. The first arm may be pivotably connected to a first mount and the second arm may be pivotably connected to a second mount. A pivot axis of the first arm relative to the elongate beam may be substantially parallel to a pivot axis of the first arm relative to the first mount. A pivot axis of the second arm relative to the elongate beam may substantially parallel to a pivot axis of the second arm relative to the second mount.

Abstract: An aircraft hold including a device for automated processing of luggage is provided. The device includes at least one automated arm for handling the luggage. The automated arm, which is mounted so as to be able to move in translation along the longitudinal axis of the hold of the aircraft includes a head for grasping an item of luggage. A wrapper for packaging an item of luggage for the automated processing of the item of luggage is also provided. The wrapper is in the form of a protective film and includes a grasping surface separate from but secured to the protective film. A method for automated processing of luggage in an aircraft is provided.

Abstract: An adjustable aircraft passenger seat including a seat bottom, a legrest adjustable in angle relative to the seat bottom, a seatback adjustable in angle relative to the seat bottom, the seatback segmented into a lower seatback and an upper seatback, the lower seatback adjustable in angle relative to the seat bottom and the upper seatback adjustable in angle relative to the lower seatback, and a headrest adjustable in height relative to the upper seatback.

Abstract: A block of two seats side by side which can be converted individually between a chair configuration and a horizontal flat bed configuration, the longitudinal axes of two of the seats in the bed configuration converging towards a point situated in front of the seats at a distance such that the foot areas in front of the seats in the bed configuration are superposed. Bed planes of the two seats of the block are vertically offset and extended by rest surfaces of the foot areas arranged in a column arranged between the seat backs of the seats of a block situated in front, making it possible to reduce the seat pitch while not affecting comfort, and allowing an improved cabin layout for transporting passengers.

Abstract: A cooling system for an interior space of a vehicle comprises a main cooling system coupled with an air inlet for receiving air and coupled with the interior space for providing cooled air to the interior space, at least one air duct arranged between the air inlet and the interior space, a reservoir for liquid nitrogen having a nitrogen outlet and a valve arranged between the outlet and an injection port of the at least one air duct. The reservoir is couplable with the injection port of the at least one air duct via the valve on demand for evaporating nitrogen in the at least one air duct. With the injection of liquid nitrogen the main cooling system is supported in case it is not able to provide a sufficient cooling power.