An electric compressor includes a compression portion that compresses and discharges a drawn fluid, and a motor of the compression portion. The electric compressor includes an actuator that includes multiple electronic components and drives the motor, a first casing that accommodates the actuator, and a second casing that accommodates the compression portion and the motor. The second casing includes a discharge passage in which a high-temperature fluid compressed by the compression portion flows. A limiting structure that limits the heat transfer from the fluid flowing in the discharge passage is provided between one of the electronic components and the discharge passage. The limiting structure includes a seat portion that defines a gap between a bottom surface of the one of the plurality of electronic components and the discharge passage. According to the electric compressor, the heat transfer from the fluid to the electronic components can be limited.

An apparatus includes a pipeline-transport compressor configured to receive, in use, a product stream from a pipeline. The cooler unit is configured to receive, in use, a cooler air intake from the pipeline-transport compressor. This is done in such a way that removal of the cooler air intake by the cooler unit, in use, moves the cool air across the cooler bundles and out through the cooler unit, and cools the pipeline-transport compressor. An air exhaust power generation unit is configured to generate, in use, electric power in response to the cooler unit, in use, urging, at least in part, the cooler air intake toward, at least in part, the air exhaust power generation unit.

A fluidic device is disclosed, comprising an enclosed passage that is adapted to convey a circulating fluid. The enclosed passage comprises a flow unit having a first electrode and a second electrode offset from the first electrode in a downstream direction of a flow of the circulating fluid. The first electrode is formed as a grid structure and arranged to allow the circulating fluid to flow through the first electrode. The fluidic device may be used for controlling or regulating the flow of the fluid circulating in the enclosed passage, and thereby act as a valve opening, reducing or even closing the passage.

A fluidic device is disclosed, comprising an enclosed passage that is adapted to convey a circulating fluid. The enclosed passage comprises a flow unit having a first electrode and a second electrode offset from the first electrode in a downstream direction of a flow of the circulating fluid. The first electrode is formed as a grid structure and arranged to allow the circulating fluid to flow through the first electrode. The fluidic device may be used for controlling or regulating the flow of the fluid circulating in the enclosed passage, and thereby act as a valve opening, reducing or even closing the passage.

A compressor system including a compressor, a cooling device and a control apparatus, wherein the control apparatus is configured to control the cooling device independently of the operation of the compressor and to be capable of dynamically modifying a control parameter (T.sub.air, T.sub.oil) of an actuator and/or the actuator for the actuation of the cooling device.

A compressor system including a compressor, a cooling device and a control apparatus, wherein the control apparatus is configured to control the cooling device independently of the operation of the compressor and to be capable of dynamically modifying a control parameter (T.sub.air, T.sub.oil) of an actuator and/or the actuator for the actuation of the cooling device.

The invention relates to a compressor system for a rail vehicle, having: a compressor, a cooling device and a control device or an interface for receiving control signals of a control device, wherein the control device is configured to actuate the cooling device independently of the operation of the compressor, and to be able to provide a variable cooling fluid volumetric flow rate, in particular a cooling air volumetric flow rate, which can be specified by way of the control device as an actuating variable.

A linear compressor includes a casing, a cylinder forming a compression chamber inside the casing, a piston reciprocating to compress a fluid of the compression chamber, a mover having a movable magnet and reciprocating on the basis of a predetermined reference position to drive the piston, and a stator generating a thrust pushing the mover in the reciprocating direction and a restoring force pushing the mover in a direction toward the reference position according to an interaction with the movable magnet, wherein the stator includes a mover air gap formed to accommodate the mover and a magnetoresistive air gap formed in a position spaced apart from the mover air gap to change magnetic resistance of a magnetic circuit formed along the stator. According to this, a magnetic resonance spring with increased restoring force may be implemented.

A linear compressor includes a casing, a cylinder forming a compression chamber inside the casing, a piston reciprocating to compress a fluid of the compression chamber, a mover having a movable magnet and reciprocating on the basis of a predetermined reference position to drive the piston, and a stator generating a thrust pushing the mover in the reciprocating direction and a restoring force pushing the mover in a direction toward the reference position according to an interaction with the movable magnet, wherein the stator includes a mover air gap formed to accommodate the mover and a magnetoresistive air gap formed in a position spaced apart from the mover air gap to change magnetic resistance of a magnetic circuit formed along the stator. According to this, a magnetic resonance spring with increased restoring force may be implemented.

A cooling system and method for using the cooling system are described. The cooling system includes a plurality of individual piezoelectric cooling elements spatially arranged in an array extending in at least two dimensions, a communications interface and driving circuitry. The communications interface is associated with the individual piezoelectric cooling elements such that selected individual piezoelectric cooling elements within the array can be activated based at least in part on heat energy generated in the vicinity of the selected individual piezoelectric cooling elements. The driving circuitry is associated with the individual piezoelectric cooling elements and is configured to drive the selected individual piezoelectric cooling elements.