Abstract: A cleaning vehicle comprises a rolling chassis and a primary power source (13) in the form of a combustion engine which is able and configured to drive the vehicle. A suction installation (30) is provided which has an underpressure chamber (20) and a pump device (31,32,33) coupled thereto. The pump device comprises a primary pump unit (31,32) which draws its input power from the primary power source (13). In addition, the pump device comprises a secondary pump unit (33) which is optionally driven directly by a secondary power source in the form of an electric motor. The secondary power source (33) is supplied independently of the primary power source (13) by an electrical power supply.

Abstract: A cleaning vehicle comprises a rolling chassis and a primary power source (13) in the form of a combustion engine which is able and configured to drive the vehicle. A suction installation (30) is provided which has an underpressure chamber (20) and a pump device (31,32,33) coupled thereto. The pump device comprises a primary pump unit (31,32) which draws its input power from the primary power source (13). In addition, the pump device comprises a secondary pump unit (33) which is optionally driven directly by a secondary power source in the form of an electric motor. The secondary power source (33) is supplied independently of the primary power source (13) by an electrical power supply.

Abstract: A device for displaying information, such as an advertisement, on a lorry comprises a web of a material in sheet or canvas form, a reel which can be attached to the lorry, onto which the web can be wound up and from which the web can be unwound, and attachment means for attaching the unwound web to the lorry, which web, in the unwound state, defines an image surface with a height direction and a width direction, on which image surface the information can be placed. The height direction of the image surface is parallel to the reel.

Abstract: A device for displaying information, such as an advertisement, on a lorry comprises a web of a material in sheet or canvas form, a reel which can be attached to the lorry, onto which the web can be wound up and from which the web can be unwound, and attachment means for attaching the unwound web to the lorry, which web, in the unwound state, defines an image surface with a height direction and a width direction, on which image surface the information can be placed. The height direction of the image surface is parallel to the reel.