Abstract: A hybrid electric vehicle having a controllable switch that enables a DC link to be operated independent from an energy storage system (ESS) is provided. The ESS is selectively couplable to the DC link via the controllable switch. A processor is configured to control the switch to open and close under certain conditions. When the switch is opened, the processor is configured to instruct an engine controller to cause an engine which is coupled to a generator to boost engine output. The generator is coupled to a generator inverter which is also coupled to the DC link. A motor inverter is also coupled to the DC link and is configured to provide AC power to the motor.

Abstract: A hybrid electric vehicle having a controllable switch that enables a DC link to be operated independent from an energy storage system (ESS) is provided. The ESS is selectively couplable to the DC link via the controllable switch. A processor is configured to control the switch to open and close under certain conditions. When the switch is opened, the processor is configured to instruct an engine controller to cause an engine which is coupled to a generator to boost engine output. The generator is coupled to a generator inverter which is also coupled to the DC link. A motor inverter is also coupled to the DC link and is configured to provide AC power to the motor.

Abstract: A transmission drive system (TDS) for a differential speed steered vehicle, in particular a track-laying vehicle (tank or armored personnel carrier), has two AC induction traction motors, each operatively coupled to two semi-independent coaxial traction shafts, and two AC induction steer motors coaxially mounted on a common steer axis parallel to the coaxial traction shafts. A steering gear assembly, preferably between the traction and steering motors, has a common steer input shaft operatively connected to the two AC induction steering motors. Two planetary gear sets have the two traction shafts being operatively connected with one of a two planet gear carriers, or two ring gears, respectively. The other of the planet gear carriers or the ring gears are operatively connected with each other. Two offset gears mounted to the steer input shaft and meshing with two sun gears, respectively, including a reversing idler gear interposed between one of the two offset gears and one of the two sun gears.

Abstract: A gas separation module 25 is disclosed for separating air into nitrogen 27 and oxygen 26 enriched fractions. The nitrogen enriched fraction 27 may be used to inert an atmosphere inside a fuel tank 32. The air is separated into nitrogen 27 and oxygen 26 enriched fractions by providing a plurality of strands of gas separation membrane wound around a core and maintaining a pressure difference across the walls of the strands of membrane. A low pressure difference of?30 psi maintained across the membrane is able to effect gas separation and provide highly nitrogen enriched air. The membrane has preferably been subjected to a modification technique to increase its gas permeability.

Abstract: A method of supplying oxygen rich air to the passengers and crew on board a passenger aircraft by use of a highly permeable oxygen enrichment unit, wherein the fiber tubes of the hollow fiber membranes used to separate normal air into oxygen rich and nitrogen rich fractions in the oxygen enrichment unit are subjected to a modification technique before the tubes are coated with a selective polymer.

Abstract: A method of producing composite, hollow fibre gas separation membranes, wherein external surfaces of the porous hollow fibre tubes used in the construction of the membranes are subjected to a modification technique before the external surfaces are coated with a thin layer of selective polymer so as to increase the number of pores in the fibre surface.

Abstract: A method of supplying oxygen rich air to the passengers and crew on board a passenger aircraft by means of a highly permeable oxygen enrichment unit, wherein the fibre tubes of the hollow fibre membranes used to separate normal air into oxygen rich and nitrogen rich fractions in the oxygen enrichment unit are subjected to a modification technique before the tubes are coated with a selective polymer.

Abstract: A method of producing composite, hollow fibre gas separation membranes, wherein external surfaces of the porous hollow fibre tubes used in the construction of the membranes are subjected to a modification technique before the external surfaces are coated with a thin layer of selective polymer so as to increase the number of pores in the fibre surface.

Abstract: A refrigerated butter dispenser comprising a receptacle for containing crushed ice and an invertable cover unit which has on one side thereof a handle for lifting the cover and on the other an outwardly extending tapered skirt defining interiorly thereof a butter receiving chamber. When the dispenser is not being used, the cover is positioned so that the skirt portion depends inwardly of the receptacle, keeping the butter contained therein in close proximity with the crushed ice. When it is desired to remove the butter from the dispenser, the cover is inverted so that the skirt portion extends upwardly, making the butter chamber readily accessible to the user.