The present disclosure is directed to a unique design of multi-purpose wheels for use in multi-purpose vehicles capable of operating in different transportation modes in different mediums such as flying mode and driving mode. Advantageous design of multi-purpose wheels and vehicles of the present disclosure allow for easy and convenient change in transportation mode of such vehicles without need for any special purpose transportation infrastructure. In one aspect, a multi-purpose tool includes a first set of blades configured to enable an object to which the multi-purpose tool is attached to operate in a first mode of transportation; a second set of blades configured to enable the object to operate in a second mode of transportation; and an engagement mechanism coupled to the first set of blades and the second set of blades for switching operation of the object between the first mode of transportation and the second mode of transportation.

The present disclosure is directed to a unique design of multi-purpose wheels for use in multi-purpose vehicles capable of operating in different transportation modes in different mediums such as flying mode and driving mode. Advantageous design of multi-purpose wheels and vehicles of the present disclosure allow for easy and convenient change in transportation mode of such vehicles without need for any special purpose transportation infrastructure. In one aspect, a multi-purpose tool includes a first set of blades configured to enable an object to which the multi-purpose tool is attached to operate in a first mode of transportation; a second set of blades configured to enable the object to operate in a second mode of transportation; and an engagement mechanism coupled to the first set of blades and the second set of blades for switching operation of the object between the first mode of transportation and the second mode of transportation.

A transportation system that includes one or more pods that include an interior space configured to house one or more travelers. The pods can be attached to and transported by multiple different vehicles. The different vehicles can provide for different modes of transportation. The pods are configured to supply one or more utility functions to the interior space. One or more of the utility functions to be supplied from the vehicles to the pods when the pods are attached to the vehicles.

A transportation system that includes one or more pods that include an interior space configured to house one or more travelers. The pods can be attached to and transported by multiple different vehicles. The different vehicles can provide for different modes of transportation. The pods are configured to supply one or more utility functions to the interior space. One or more of the utility functions to be supplied from the vehicles to the pods when the pods are attached to the vehicles.

Flying Car PPRW (Pipe Prop Rotary Wing) of the present invention transforms a road legal car into a true flying car for travels on and off roadways as well as travels in airways. Flying Car PPRW is mounted on top, powered from below, and has a smaller footprint of the road legal car for unrestricted roadway travels. Flying Car PPRW incorporates a general PPRW documented in patent application Ser. No. 16/128,537 filed on Sep. 12, 2018; and both Flying Car PPRW and the general PPRW are each a propeller driven propulsion engine in a pipe profile with props or propellers rotating in part as rotary wings. Flying Car PPRW enhances propulsion performances through the shaping of airflow field patterns around props and by the increased relative airflow velocities between props of interacting planet and sun airfoils. The PPRW props in rotations propels directional air for lift and thrust forces transversely through and across the pipe along the length of the pipe; and when vectored, the air thrust and lift forces are turned into variable lift and thrust forces for takeoffs, landings, and air flights of the true flying car travelling in airways.

Flying Car PPRW (Pipe Prop Rotary Wing) of the present invention transforms a road legal car into a true flying car for travels on and off roadways as well as travels in airways. Flying Car PPRW is mounted on top, powered from below, and has a smaller footprint of the road legal car for unrestricted roadway travels. Flying Car PPRW incorporates a general PPRW documented in patent application Ser. No. 16/128,537 filed on Sep. 12, 2018; and both Flying Car PPRW and the general PPRW are each a propeller driven propulsion engine in a pipe profile with props or propellers rotating in part as rotary wings. Flying Car PPRW enhances propulsion performances through the shaping of airflow field patterns around props and by the increased relative airflow velocities between props of interacting planet and sun airfoils. The PPRW props in rotations propels directional air for lift and thrust forces transversely through and across the pipe along the length of the pipe; and when vectored, the air thrust and lift forces are turned into variable lift and thrust forces for takeoffs, landings, and air flights of the true flying car travelling in airways.

A propulsion system coupled to a vehicle. The system includes a diffusing structure and a conduit portion configured to introduce to the diffusing structure through a passage a primary fluid produced by the vehicle. The passage is defined by a wall, and the diffusing structure comprises a terminal end configured to provide egress from the system for the introduced primary fluid. A constricting element is disposed adjacent the wall. An actuating apparatus is coupled to the constricting element and is configured to urge the constricting element toward the wall, thereby reducing the cross-sectional area of the passage.

A wing system includes an aerodynamic wing structure which is stowable. The wing structure which can be rolled up and/or folded, including at least one pressure-tight tubular pressure chamber which is made of a flexible material and extends preferably along the wingspan of the wing structure. A tear-resistant outer skin fabric encases the wing structure. The pressure chamber of the wing structure can be filled with a fluid, and the wing system includes a high-pressure pump system. The fluid is kept in the pressure chamber under high pressure, such as over 50 bar, over 100 bar, or over 150 bar. A transport device is for use as an aircraft for traveling in the air and as a vehicle for traveling on land. The transport device includes the wing system, with the wing system being attached preferably to the upper face of the transport device.

A wing system includes an aerodynamic wing structure which is stowable. The wing structure which can be rolled up and/or folded, including at least one pressure-tight tubular pressure chamber which is made of a flexible material and extends preferably along the wingspan of the wing structure. A tear-resistant outer skin fabric encases the wing structure. The pressure chamber of the wing structure can be filled with a fluid, and the wing system includes a high-pressure pump system. The fluid is kept in the pressure chamber under high pressure, such as over 50 bar, over 100 bar, or over 150 bar. A transport device is for use as an aircraft for traveling in the air and as a vehicle for traveling on land. The transport device includes the wing system, with the wing system being attached preferably to the upper face of the transport device.

A submersion system for a rotorcraft is described and includes a control module for controlling a depth to which the rotorcraft is submerged in a body of water; a compressed air chamber associated with the control module; and at least one flotation pod including a sealable opening on a top surface thereof and an opening on a bottom surface thereof. The control module selectively causes water to be taken into the at least one flotation pod to cause the submersion system to submerge in the body of water and selectively causes water to be evacuated from the at least one flotation pod to cause the submersion system to float in the body of water.