A blower includes an impeller that is rotatable about a central axis extending in a vertical direction, a motor that rotates the impeller, and a base portion on which the motor is mounted. The impeller includes a cup portion that covers the motor, and blades extending radially outward from the cup portion and arranged in a circumferential direction. A gap is provided between the cup portion and the base portion such that the gap becomes narrower in an outward direction with increasing distance from an interior of the cup portion.

A cooling fan module includes a fan frame, a light emitting part installed in the fan frame, an LED controller installed in the fan frame and electrically connected to the light emitting part, a fan body, and an external connector. The fan body includes a supporting stand detachably connected to the fan frame, a blade set installed on the supporting stand and can rotate with respect to the supporting stand, and a fan connector fixed to the supporting stand and electrically connected to the blade set. The external connector is fixed to the fan frame. The external connector can be electrically plugged in the fan connector to send a first signal; the external connector is electrically connected to the LED controller to send a second signal. Therefore, the cooling fan module has the advantages of easy assembly and reduced incorrect connection.

A windmill-type electric ceiling fan having a fan blade assembly which is light weight, exhibits improved air flow, and quieter operation. The ceiling fan has a hub attached to a motor shaft which depends from a ceiling support. A series of fan blades are each attached at an inward end to the hub and are supported radially by an elongated leading edge member, a trailing edge member and an outer edge member. The fan blade include panels which are constructed of fabric that is secured to leading edge and trailing edge members configured to dispose the pitch of the fan blades at an efficient and quiet angle.

A pump (2) system includes a pump, a sensor (22; 28) arranged in or at a flow path (14), and a concentration measurement device measuring a concentration in liquid inside the flow path (14). The concentration measurement device includes the sensor (22; 28), as a concentration sensor, connected to an evaluation device (26) for evaluating readings of the sensor (22; 28). The evaluation device (26) is connected to a further signal source (20; 24), providing at least one further parameter, and is configured to carry out an evaluation of the reading of the sensor (22; 28), taking into account the further parameter provided by the further signal source (20, 24) to output the concentration in the liquid. A solar heating system includes the pump system.

A gas turbine engine includes a combustion section and a compressor section, the compressor section including a high pressure compressor. The high pressure compressor includes an aft-most compressor stage and an upstream compressor stage, each of the aft-most compressor stage and the upstream compressor stage including a rotor disk. The gas turbine engine also includes a high pressure spool assembly, the high pressure spool assembly including a rotor disk, and an airflow member extending from the rotor disk of the high pressure spool assembly to the rotor disk of the upstream compressor stage of the high pressure compressor to define in part a compressor cooling air passage outward of the airflow member along a radial direction.

A gas turbine engine includes a combustion section and a compressor section, the compressor section including a high pressure compressor. The high pressure compressor includes an aft-most compressor stage and an upstream compressor stage, each of the aft-most compressor stage and the upstream compressor stage including a rotor disk. The gas turbine engine also includes a high pressure spool assembly, the high pressure spool assembly including a rotor disk, and an airflow member extending from the rotor disk of the high pressure spool assembly to the rotor disk of the upstream compressor stage of the high pressure compressor to define in part a compressor cooling air passage outward of the airflow member along a radial direction.

The disclosure provides a luminous fan including a main body, a light guide member and a light source. The main body includes a fan frame and a plurality of propellers, and the plurality of propellers are rotatably mounted on the fan frame. The light guide member includes an outer light guide ring and a plurality of inner light guide rings, the plurality of inner light guide rings are mounted on the fan frame, the plurality of inner light guide rings each have an air channel, the plurality of propellers are respectively located in the air channels, the outer light guide ring is mounted on the plurality of inner light guide rings and surrounds the plurality of inner light guide rings, and the outer light guide ring is exposed from the luminous fan. The light source is disposed between the outer light guide ring and the inner light guide ring.

A system for cooling a circuit component on an electronic device includes a closed-loop cooling circuit and a coolant filling device. The closed-loop cooling circuit includes a coolant block, a first pump and a radiator. The coolant filling device includes a container, a base and a second pump disposed inside the base. The coolant filling device is configured for attachment to the cooling circuit. In some embodiments, when the coolant filling device is attached to the cooling circuit, coolant may be circulated from the coolant filling device to the cooling circuit while the cooling circuit circulates coolant. In further embodiments, when the coolant filling device is attached to the cooling circuit, coolant may be circulated from the coolant filling device to the cooling circuit while the electronic device remains powered on.

A system for cooling a circuit component on an electronic device includes a closed-loop cooling circuit and a coolant filling device. The closed-loop cooling circuit includes a coolant block, a first pump and a radiator. The coolant filling device includes a container, a base and a second pump disposed inside the base. The coolant filling device is configured for attachment to the cooling circuit. In some embodiments, when the coolant filling device is attached to the cooling circuit, coolant may be circulated from the coolant filling device to the cooling circuit while the cooling circuit circulates coolant. In further embodiments, when the coolant filling device is attached to the cooling circuit, coolant may be circulated from the coolant filling device to the cooling circuit while the electronic device remains powered on.

A compressor controller for operating a compressor within an industrial automation environment is provided. The compressor controller includes a control module, configured to control the compressor via control settings, and a machine learning module, coupled with the control module. The machine learning module is configured to receive a set of supervised data related to the compressor, and to train with the supervised data to produce a Newtonian physics model representing the inputs and outputs of the compressor within the industrial automation environment. The machine learning module is also configured to receive performance data related to the compressor, receive environment data related to the compressor, and to process the performance data and environment data to produce predicted future performance data for the compressor, and to produce control settings for the compressor.