B60L13/10

Short-circuit braking of an LLM

In order to enable safe deceleration of a transport unit of a long-stator linear motor, wherein in a normal mode a plurality of drive coils of the long-stator linear motor are energized in such a way that a magnetic field coupled to a transport unit is moved along a direction of motion in order to move the transport unit along the direction of motion, according to the invention a switching to a controlled short-circuit mode is performed during the braking operation of the transport unit, in which at least some of the drive coils are short-circuited at least over a first time interval in said mode.

LINEAR MOTOR TRANSPORT FOR PACKAGING AND OTHER USES

The invention provides in some aspects a transport system comprising a guideway having a plurality of regions in which one or more vehicles are propelled, where each such vehicle includes a magnet. Disposed along each region are a plurality of propulsion coils, each comprising one or more turns that are disposed about a common axis, such that the respective common axes of the plurality of coils in that region are (i) substantially aligned with one another, and (ii) orthogonal to a direction in which the vehicles are to be propelled in that region. The plurality of coils of at least one such region are disposed on opposing sides of the magnets of vehicles being propelled along that region so as to exert a propulsive force of substance on those magnets. In at least one other region, the plurality of coils disposed on only a single side of the magnets of vehicles being propelled in that region exert a propulsive force of substance thereon-regardless of whether the plurality of coils in that region are disposed on a single or multiple (e.g., opposing sides) of those magnets.

LINEAR MOTOR TRANSPORT FOR PACKAGING AND OTHER USES

The invention provides in some aspects a transport system comprising a guideway having a plurality of regions in which one or more vehicles are propelled, where each such vehicle includes a magnet. Disposed along each region are a plurality of propulsion coils, each comprising one or more turns that are disposed about a common axis, such that the respective common axes of the plurality of coils in that region are (i) substantially aligned with one another, and (ii) orthogonal to a direction in which the vehicles are to be propelled in that region. The plurality of coils of at least one such region are disposed on opposing sides of the magnets of vehicles being propelled along that region so as to exert a propulsive force of substance on those magnets. In at least one other region, the plurality of coils disposed on only a single side of the magnets of vehicles being propelled in that region exert a propulsive force of substance thereon-regardless of whether the plurality of coils in that region are disposed on a single or multiple (e.g., opposing sides) of those magnets.

Drive system for a transportation system
10899236 · 2021-01-26 · ·

A transport system including at least one guideway, at least one levitation generator, at least one lifting member, at least one drive generator, and at least one drive member is presented. The at least one guideway, at least one levitation generator, at least one lifting member, at least one drive generator, and at least one drive member can each be implemented with other systems. The at least one drive generator is configured to: generate a driving magnetic flux; move with a corresponding at least one drive member; and be driven relative to the at least one drive member by the driving magnetic flux. The at least one levitation generator can be configured to: generate a levitating magnetic flux; move within a corresponding at least one lifting member; and elevate above a rest position relative to the at least one lifting member in response to the levitating magnetic flux.

Drive system for a transportation system
10899236 · 2021-01-26 · ·

A transport system including at least one guideway, at least one levitation generator, at least one lifting member, at least one drive generator, and at least one drive member is presented. The at least one guideway, at least one levitation generator, at least one lifting member, at least one drive generator, and at least one drive member can each be implemented with other systems. The at least one drive generator is configured to: generate a driving magnetic flux; move with a corresponding at least one drive member; and be driven relative to the at least one drive member by the driving magnetic flux. The at least one levitation generator can be configured to: generate a levitating magnetic flux; move within a corresponding at least one lifting member; and elevate above a rest position relative to the at least one lifting member in response to the levitating magnetic flux.

COOLING SYSTEM FOR A TRANSPORTATION VEHICLE ARRANGED TO BE TRANSPORTED IN A LOW-PRESSURE ENVIRONMENT
20240001972 · 2024-01-04 ·

A cooling system is provided for a transportation vehicle arranged to be transported in a low-pressure environ-ment, the system comprising a sublimation circuit for transporting a sublimation fluid, a first heat exchanger arranged to transfer thermal energy to the sublimation fluid, a sublimation unit comprising a fluid inlet and an open channel structure comprising chan-nels which are in fluid communication with the fluid inlet and with an outer surface of the sublimation unit, a first flow controller for controlling a flow of the sublimation fluid through the sublimation circuit, and a container arranged to hold the sublimation fluid and comprising a container outlet connected to the fluid inlet of the sublimation unit to supply sublimation fluid to the sublimation unit.

COOLING SYSTEM FOR A TRANSPORTATION VEHICLE ARRANGED TO BE TRANSPORTED IN A LOW-PRESSURE ENVIRONMENT
20240001972 · 2024-01-04 ·

A cooling system is provided for a transportation vehicle arranged to be transported in a low-pressure environ-ment, the system comprising a sublimation circuit for transporting a sublimation fluid, a first heat exchanger arranged to transfer thermal energy to the sublimation fluid, a sublimation unit comprising a fluid inlet and an open channel structure comprising chan-nels which are in fluid communication with the fluid inlet and with an outer surface of the sublimation unit, a first flow controller for controlling a flow of the sublimation fluid through the sublimation circuit, and a container arranged to hold the sublimation fluid and comprising a container outlet connected to the fluid inlet of the sublimation unit to supply sublimation fluid to the sublimation unit.

SUPERCONDUCTING EDDY-CURRENT BRAKE FOR HIGH-SPEED TRAIN
20210001729 · 2021-01-07 ·

A superconducting eddy-current brake for high-speed trains includes a pair of superconducting magnet units with alternate arrangement of N and S poles; and a cryogenic system. The superconducting magnet units are fixed on a bottom of a bogie of the train and an air gap is provided between the superconducting magnet units and a top surface of a rail below the bogie. The cryogenic system is provided on the bogie of the train. Each superconducting magnet unit is embedded with a superconducting container including a coil case, a thermal shield and a Dewar successively from inside to outside. The coil case is filled with liquid helium. A superconducting coil is provided in the coil case and immersed in the liquid helium. A high-vacuum environment is provided in the thermal shield. Liquid nitrogen inlet and outlet pipes are provided on an outer wall of the thermal shield.

SUPERCONDUCTING EDDY-CURRENT BRAKE FOR HIGH-SPEED TRAIN
20210001729 · 2021-01-07 ·

A superconducting eddy-current brake for high-speed trains includes a pair of superconducting magnet units with alternate arrangement of N and S poles; and a cryogenic system. The superconducting magnet units are fixed on a bottom of a bogie of the train and an air gap is provided between the superconducting magnet units and a top surface of a rail below the bogie. The cryogenic system is provided on the bogie of the train. Each superconducting magnet unit is embedded with a superconducting container including a coil case, a thermal shield and a Dewar successively from inside to outside. The coil case is filled with liquid helium. A superconducting coil is provided in the coil case and immersed in the liquid helium. A high-vacuum environment is provided in the thermal shield. Liquid nitrogen inlet and outlet pipes are provided on an outer wall of the thermal shield.

Linear motor based on radial magnetic tubes
10873251 · 2020-12-22 ·

A liner motor based on radical magnetic tubes includes: a dynamicer (mover, QDZ) and a stator (STA), the structure of the stator (STA) is: a stator magnetic tube (SCG) is nested into the inner wall of a pure iron tube (DTG), the stator magnetic tube (SCG) provides a radial magnetic field, a stator tube (DZGD) is formed within the stator magnetic tube (SCG), the dynamicer can travel in the stator tube; the dynamicer iron core is a tube of a radial magnetic field and installed on a tubular coil skeleton, on which winding the dynamicer coil to form the dynamicer main body; the sliders (HDZ) are installed on both ends of the dynamicer main body load.