Alfred Kaercher Gmbh & Co. Kg

Alfred Kärcher Se Co. Kg

Alfred Kärcher Gmbh Co. Kg

Thomas Hofer

Juergen Binder

Juergen Kloepfer

Michael Sperl

Jürgen KLÖPFER

The present invention relates to a electrical energy storage device for an electrical appliance, which electrical energy storage device includes a housing, which housing defines a receiving space in which at least one electrical energy store is received, which electrical energy storage device includes at least two electrically conductive contacts which are accessible from an outer side of the housing and which are electrically operatively connected directly or indirectly to the at least one electrical energy store, wherein the housing has at least one contact opening, through which the at least two contacts are accessible or protrude from the housing, and wherein the at least one contact opening is surrounded by a continuous sealing element.

Electrical energy storage device and electrical appliance

A piston pump for a high-pressure cleaning appliance is provided, which includes a plurality of pistons that are movable back and forth and each of which enters a pump chamber and is displaceably held at a piston guiding part. The piston guiding part has a supporting wall on which a plurality of guiding elements, each of which guides a piston, are disposed. In order to be able to produce the piston pump in a more cost-effective manner, it is proposed according to the invention that the supporting wall is curved.

Swash plate compressor having a curved piston guide wall

In order to achieve a particularly simple construction which is, in particular, easy to assemble in the case of a nozzle assembly for a high-pressure cleaning device with a low-pressure nozzle, a high-pressure nozzle arranged in it, a spray lance which bears a sealing pipe connection insertable into the high-pressure nozzle, a bypass surrounding the high-pressure nozzle and leading to the low-pressure nozzle and displacement elements which alter the distance between the sealing pipe connection and the high-pressure nozzle in such a manner that the sealing pipe connection abuts sealingly on the high-pressure nozzle in a high-pressure position and, as a result, interrupts the connection from the spray lance to the bypass whereas, in a low-pressure position, the sealing pipe connection is at a distance from the high-pressure nozzle and, as a result, releases the connection from the spray lance to the bypass, it is suggested that the spray lance bear a pot-shaped housing which surrounds the sealing pipe connection and in which the low-pressure nozzle and the high-pressure nozzle are mounted so as to be freely displaceable and sealed in relation to the inner wall of the housing and that the displacement elements displace the low-pressure nozzle and the high-pressure nozzle in the housing in its longitudinal direction towards the sealing pipe connection and away from it.

Nozzle assembly for a high-pressure cleaning device

The invention provides a rotor nozzle, comprising a casing and a rotor body arranged therein. The rotor body has a flow-through channel and a spherical bearing part in a step bearing surrounding an exit opening of the casing. An end part closes the casing and has several selectively closable passages arranged therein which open from an inlet side into the interior of the casing or into flow channels in the casing leading to additional outlets. The end part widens in steps from the interior to the inlet side, and is inserted into a stepped receiving opening. A seal is provided between the end part and the inner wall of the receiving opening. An outlet for a passage of the end part is arranged in the area of at least one step and a flow channel begins in the casing in the area of this step.

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Auenwald, Germany

Thomas Hofer