Abstract: A dilute phase powder pump for pumping powder, particularly coating powder, from a powder reservoir to a powder spray-coating device, includes a powder inlet, which is or can be flow-connected to the powder reservoir, and a powder outlet, which is or can be flow-connected to the powder spray-coating device. The dilute phase powder pump also has a powder pumping injector with a motive fluid nozzle and a converging inlet nozzle, and has a valve device for optionally interrupting a flow connection between the powder inlet (80) of the dilute phase powder pump and a powder inlet of the motive fluid nozzle.

Abstract: Disclosed are a Venturi nozzle arrangement for powder conveying injectors and corresponding powder conveying injectors. The Venturi nozzle arrangement has a first region, which serves as a drive nozzle, and a second region, which serves as a collecting nozzle, wherein the second region has a channel that serves as a stream collecting channel with a longitudinal axis, and wherein the first region has a nozzle opening which lies axially opposite the stream collecting channel, the first and second regions of the nozzle arrangement being inseparably connected to one another as a combined component.

Abstract: A rear casing is disclosed for a spray gun that has a handle part and a gun barrel connected to the handle part. The rear casing can be removably and exhangeably attached to the rear side of a main body of the spray gun and has a first region designed as a handle casing and a second region designed as a covering casing for rear-side covering of a rear region of the gun barrel. At least one connection element is provided on the second region of the rear casing for optionally forming a removable connection to a part having, for this purpose, at least some portions with a design complementing that of said connection element. In particular, according to the invention, the entire rear casing, together with the at least one connection element, is designed as a monolithic plastic component, in particular a plastic injection moulded molded part.

Abstract: 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).

Abstract: A powder discharge device includes a powder thin flow pump for delivering powder, particularly coating powder, from a powder reservoir to a powder spray device, with a control device being integrated in the powder discharge device, which control device is designed to adjust at least one parameter, which is characterizing in relation to a spray coating process performed with the powder spray device and/or in relation to a powder delivery performed with the powder thin flow pump, the control device forming a structural unit with the powder thin flow pump.

Abstract: Disclosed are a Venturi nozzle arrangement for powder conveying injectors and corresponding powder conveying injectors. The Venturi nozzle arrangement has a first region, which serves as a drive nozzle, and a second region, which serves as a collecting nozzle, wherein the second region has a channel that serves as a stream collecting channel with a longitudinal axis, and wherein the first region has a nozzle opening which lies axially opposite the stream collecting channel, the first and second regions of the nozzle arrangement being inseparably connected to one another as a combined component.