Alfred Kärcher Se Co. Kg

Alfred Kärcher Gmbh Co. Kg

Andreas Seibold

Florian Ebert

Felix Bensing

Juergen Frank

Gábor Peflof

Bernd Haberl

Christian Stewen

Saulius Martinkenas

Anne Oberländer

Jürgen Frank

Michael Scharmacher

Tobias Geltz

Heinz-Peter ULRICHSKÖTTER

Gabór Peflof

Reinhold Diesch

Daniel Manocchio

A device for exchanging thermal energy with ambient air including a heat exchanger, a fan arranged downstream for conveying air flow through the heat exchanger, and an air supply unit with at least one air inlet opening and an air discharge unit with an air outlet opening for discharging the air flow out of the fan into the environment. The air inlet opening and the air outlet opening are arranged on the same side of the device. The air supply unit has a supply air channel feeding into the heat exchanger, which extends along an inlet surface of the heat exchanger and continuously tapers along the inlet surface, and the outflow cross-section, defining the outlet speed of the air flow, of the air outlet opening is smaller than the inflow cross-section, defining the inlet speed of the air flow, of the at least one air inlet opening.

Device for exchanging thermal energy with ambient air and heat pump with a device of this type

The invention relates to a device for exchanging thermal energy with ambient air, comprising at least one heat exchanger () through which an air flow can flow and which is assigned an axial fan () for conveying the air flow through the heat exchanger and an outflow housing () receiving the air flow, wherein the outflow housing has an air outlet opening () for discharging the air flow into the environment. In order to develop the device in such a way that the outflow of the axial fan () can be deflected transverse to the outlet direction of the axial fan with minimal flow losses, according to the invention, the outflow housing () forms an air-receiving space () axially offset to an impeller wheel () and a motor () of the axial fan (), which receives the conveyed air flow over the entire cross-section of the impeller wheel () and the motor () and is penetrated by the fan rotational axis (), and wherein the outflow housing covers the impeller wheel () and the motor () when viewed from the rear and is designed and configured to supply the conveyed air flow to the air outlet opening () with a directional component tangential to a swirling movement imposed on the air flow by the axial fan.

Device for exchanging thermal energy with ambient air

A suction unit comprising a suction apparatus, a dirt collection container, a filter device, wherein the dirt collection container is connected in terms of flow via the filter device to the suction apparatus, and a cleaning device for the filter device, which cleaning device comprises an external-air valve device, and at least one guide duct for air, which at least one guide duct has a first port which is connected in terms of fluid action to the cleaning device for the provision of external air from the at least one guide duct, a second port for the coupling of exhaust air of the suction apparatus into the at least one guide duct, and a third port which is connected in terms of fluid action to the surroundings of the suction unit, wherein air from the surroundings is configured to flow into the at least one guide duct via the third port.

Suction device and method for operating a suction device

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Kernen, Germany

Andreas Seibold