The invention relates to a dilute phase powder pump (51) for pumping powder, particularly coating powder, from a powder reservoir to a powder spray-coating device, comprising a powder inlet (80), which is or can be flow-connected to the powder reservoir, and a powder outlet (81), which is or can be flow-connected to the powder spray-coating device, the dilute phase powder pump (51) having also a powder pumping injector (100) with a motive fluid nozzle (1) and a converging inlet nozzle (11), and the dilute phase powder pump (51) having a valve device for optionally interrupting a flow connection between the powder inlet (80) of the dilute phase powder pump (51) and a powder inlet (5) of the motive fluid nozzle (1).

The invention relates to a dilute phase powder pump (51) for pumping powder, particularly coating powder, from a powder reservoir to a powder spray-coating device, comprising a powder inlet (80), which is or can be flow-connected to the powder reservoir, and a powder outlet (81), which is or can be flow-connected to the powder spray-coating device, the dilute phase powder pump (51) having also a powder pumping injector (100) with a motive fluid nozzle (1) and a converging inlet nozzle (11), and the dilute phase powder pump (51) having a valve device for optionally interrupting a flow connection between the powder inlet (80) of the dilute phase powder pump (51) and a powder inlet (5) of the motive fluid nozzle (1).

An aspirator may comprise an aspirator body defining an air channel. An aspirator barrel may have a first aspirator barrel segment coupled to the aspirator body and may have a second aspirator barrel segment. The second aspirator barrel segment configured to fit at least partially within the first aspirator barrel segment when the aspirator barrel is in a stowed state and configured to interlock with the first aspirator barrel segment in an extended position when the aspirator barrel is in a deployed state.

An aspirator may comprise an aspirator body defining an air channel. An aspirator barrel may have a first aspirator barrel segment coupled to the aspirator body and may have a second aspirator barrel segment. The second aspirator barrel segment configured to fit at least partially within the first aspirator barrel segment when the aspirator barrel is in a stowed state and configured to interlock with the first aspirator barrel segment in an extended position when the aspirator barrel is in a deployed state.

An Environmental Control System (ECS) for an aircraft includes a ram air system having a ram inlet and a ram outlet. The ECS includes a cabin air compressor motor, a diverter valve, and a dedicated outlet. The cabin air compressor motor has a motor inlet passage and a motor outlet passage with the motor inlet passage being coupled to the ram inlet. The diverter valve includes a first diverter inlet, a first diverter outlet, and a second diverter outlet. The first diverter inlet is coupled to the motor outlet passage. The dedicated outlet is connected to the first diverter outlet in a flight mode of operation of the aircraft and the ram outlet is connected to the second diverter outlet in a ground mode of operation of the aircraft.

An Environmental Control System (ECS) for an aircraft includes a ram air system having a ram inlet and a ram outlet. The ECS includes a cabin air compressor motor, a diverter valve, and a dedicated outlet. The cabin air compressor motor has a motor inlet passage and a motor outlet passage with the motor inlet passage being coupled to the ram inlet. The diverter valve includes a first diverter inlet, a first diverter outlet, and a second diverter outlet. The first diverter inlet is coupled to the motor outlet passage. The dedicated outlet is connected to the first diverter outlet in a flight mode of operation of the aircraft and the ram outlet is connected to the second diverter outlet in a ground mode of operation of the aircraft.

An Environmental Control System (ECS) for an aircraft includes a ram air system having a ram inlet and a ram outlet. The ECS includes a cabin air compressor motor, a diverter valve, and a dedicated outlet. The cabin air compressor motor has a motor inlet passage and a motor outlet passage with the motor inlet passage being coupled to the ram inlet. The diverter valve includes a first diverter inlet, a first diverter outlet, and a second diverter outlet. The first diverter inlet is coupled to the motor outlet passage. The dedicated outlet is connected to the first diverter outlet in a flight mode of operation of the aircraft and the ram outlet is connected to the second diverter outlet in a ground mode of operation of the aircraft.

An Environmental Control System (ECS) for an aircraft includes a ram air system having a ram inlet and a ram outlet. The ECS includes a cabin air compressor motor, a diverter valve, and a dedicated outlet. The cabin air compressor motor has a motor inlet passage and a motor outlet passage with the motor inlet passage being coupled to the ram inlet. The diverter valve includes a first diverter inlet, a first diverter outlet, and a second diverter outlet. The first diverter inlet is coupled to the motor outlet passage. The dedicated outlet is connected to the first diverter outlet in a flight mode of operation of the aircraft and the ram outlet is connected to the second diverter outlet in a ground mode of operation of the aircraft.

A jet pump comprising a jet nozzle for accelerating a propellant. The jet nozzle has a convergent inlet part and an outlet part connected to the convergent inlet part. The outlet comprises an inner wall diverging at an opening angle. The opening angle is designed such that a propellant flowing through the outlet part at subsonic speed is detached from the inner wall and a propellant flowing through the outlet part at supersonic speed is guided by the inner wall. An automatic, cost-effective and simple changeover of the jet pump to different pressure ratios is hence provided.

Devices for producing vacuum using the Venturi effect have a housing that defines a suction chamber, a motive passageway converging toward the suction chamber, a discharge passageway diverging away from the suction chamber, and a suction passageway having a first port in fluid communication with the suction chamber. Within the suction chamber, a motive exit of the motive passageway is spaced apart a distance from a discharge entrance of the discharge passageway to define a Venturi gap. A fletch that has a first hollow body section that terminates at or proximate a motive exit and a second hollow body section that terminates with a fletch entrance in fluid communication with the suction passageway upstream of the first port is present in the motive passageway. During operation, fluid flow through the motive passageway draws fluid flow through the first port into the suction chamber and through the fletch.