A gaseous compression system for compressing a gas from an initial pressure to an exit pressure with a first, blower compression bank and a second, mechanical compression bank. Each compression bank has plural stages of gaseous compression with a gaseous fluid compressor and a heat pump intercooler. The heat pump intercooler comprises a cascading heat pump intercooler with a high temperature section, a medium temperature section, and a low temperature section, each temperature section with an intercooler core. Each stage of the blower compression bank has a high-pressure blower, and each stage of the mechanical compressor bank has a mechanical compressor. A final stage of gaseous compression is without a heat pump intercooler. Gas compressed by the gaseous fluid compression system can be injected into a gas-driven generator to generate electric power from movement of a working fluid induced by injection of the compressed gas.

A lifting oscillating fan comprises a fan base. One side of upper end of the fan base is connected to a first telescopic rod; upper end of the first telescopic rod is connected to a second telescopic rod by a movable joint; upper end of the second telescopic rod is connected to a U-shaped support; inner walls of opposite sides of the U-shaped support are connected to a rotating rod by a rotating shaft; upper end of the rotating rod is connected to a supporting rod by a bearing; a head shaking support is sheathed on upper end of the supporting rod; one side of the head shaking support is connected to a connecting plate; the head shaking support is connected to a fan head by the connecting plate; and a connecting cylinder correspondingly connected to the connecting plate is embedded in one side of the fan head.

A blower is provided that may include a fan that creates airflow; a lower body forming an inner space in which the fan may be installed, and having at least one suction hole through which air passes; an upper body positioned above the lower body and including a first upper body forming a first inner space that communicates with the inner space of the lower body, and a second upper body forming a second inner space that communicates with the inner space of the lower body and spaced apart from the first upper body; a space formed between the first upper body and the second upper body and opened in a frontward-rearward direction; a first opening formed through a first boundary surface of the first upper body facing the space; a second opening formed through a second boundary surface of the second upper body facing the space; and a door assembly including a first door installed at the first upper body and that opens and closes the first opening, and a second door installed at the second upper body and that opens and closes the second opening.

A fan inspection jig includes a jig assembly having multiple spring abutment pillars for holding two sides of a fan (or a series fan) to make the fan or the series fan positioned in a suspending position. A vibration sensor is disposed in at least one of the spring abutment pillars of two sides of the fan for measuring a vibration signal of the fan in operation.

The present invention is directed to a portable fan for the use in firefighting and other ventilation use-cases. The portable fan provides firefighters the ability to provide positive pressure ventilation in use for fighting fires which does not require power cables or combustible fuel powered motors, and provides increased portability, reduced risk, and reduced deployment time associated with managing and fighting a fire.

Smart fans are described that can be used in any application in which a flow of a fluid, such as air, is required. In two specific applications, one or more of the fans can be used to conduct a blower door test or a duct leakage test. However, the smart fans described herein can be used in other applications.

An Internet of Things (IoT) gateway integrated into a real-time monitoring system for skid-mounted natural gas compression systems. The IoT gateway enables remote monitoring, troubleshooting, and diagnosing of natural gas compression systems by providing access to cellular and satellite communication networks for communicating operational data to one or more remote servers. The IoT gateway can be configured to select a communication network based on an order of priority and other various criteria. The order of priority and the selection criteria may be updated over the air. The IoT gateway can be further configured to receive and relay software and other updates to one or more components of the natural gas compression system. The IoT gateway is configured to meet various regulatory compliance standards and is explosion proof.

Provided are a fan assembly and a vacuum cleaner having same. The fan assembly includes a housing, an impeller assembly, and a driving member. At least part of the impeller assembly is accommodated in the housing. The impeller assembly includes a plurality of impellers connected in series in an airflow flowing direction of the fan assembly. The driving member is configured to drive the plurality of impellers to rotate.

Provided are a fan assembly and a vacuum cleaner having same. The fan assembly includes a housing, an impeller assembly, and a driving member. At least part of the impeller assembly is accommodated in the housing. The impeller assembly includes a plurality of impellers connected in series in an airflow flowing direction of the fan assembly. The driving member is configured to drive the plurality of impellers to rotate.

A lifting oscillating fan comprises a fan base. One side of upper end of the fan base is connected to a first telescopic rod; upper end of the first telescopic rod is connected to a second telescopic rod by a movable joint; upper end of the second telescopic rod is connected to a U-shaped support; inner walls of opposite sides of the U-shaped support are connected to a rotating rod by a rotating shaft; upper end of the rotating rod is connected to a supporting rod by a bearing; a head shaking support is sheathed on upper end of the supporting rod; one side of the head shaking support is connected to a connecting plate; the head shaking support is connected to a fan head by the connecting plate; and a connecting cylinder correspondingly connected to the connecting plate is embedded in one side of the fan head.