Abstract: An aircraft propulsion system utilizes a rotary engine to drive a centrifugal fan providing a thrust vector that is generally orthogonal to an axis of rotation of the rotary engine and the fan. The aircraft propulsion system may be mounted, for example, in the wing of a fixed-wing aircraft with the rotary engine and the centrifugal fan rotating about an axis of rotation that is generally parallel to a yaw axis of the aircraft.

Abstract: An aircraft propulsion system utilizes a rotary engine to drive a centrifugal fan providing a thrust vector that is generally orthogonal to an axis of rotation of the rotary engine and the fan. The aircraft propulsion system may be mounted, for example, in the wing of a fixed-wing aircraft with the rotary engine and the centrifugal fan rotating about an axis of rotation that is generally parallel to a yaw axis of the aircraft.

Abstract: A battery electrode assembly comprises a porous electrode plate having a plurality of large and small pores, a pore insert within a plurality of pores, the pore insert maintaining an electrolyte in the pores substantially throughout a discharge/charge cycle. The pore insert may be a gelled electrolyte. The pore insert may be a particulate material. The electrodes may be used in a battery having cells with opposing positive and negative tabs connected in series by an intercell connector.

Abstract: A compression-ignition internal combustion engine for aircraft generally comprises a stationary crankshaft, a crankcase adapted to rotate about the stationary crankshaft, and a plurality of cylinders radially extending from the crankcase. Each cylinder includes a piston adapted to reciprocate therein and a connecting rod drivingly coupling the piston to the crankshaft. The engine further comprises a valve assembly for operating an exhaust valve associated with each cylinder and a fuel assembly for supplying fuel to each cylinder. First and second cams mounted on the crankshaft are adapted to operate the valve assembly and fuel assembly in a timed manner as the crankcase rotates about the crankshaft. The engine also includes a propeller synchronizer for adjusting the pitch of a plurality of propellers radially extending from the rotating crankcase.

Abstract: A portable stove includes a housing and at least one basin member secured to the housing. The basin member forms a bottom pocket at one end and a top opening at another end. A burner extends into the pocket and provides heat that the basin member directs from the pocket to the top opening. A plate member defines holes at predetermined positions of its body and lies between the pocket and the top opening to distribute heat evenly across the top opening.

Abstract: A portable stove includes a housing and at least one basin member secured to the housing. The basin member forms a bottom pocket at one end and a top opening at another end. A burner extends into the pocket and provides heat that the basin member directs from the pocket to the top opening. A plate member defines holes at predetermined positions of its body and lies between the pocket and the top opening to distribute heat evenly across the top opening.