Abstract: In a high-pressure cleaner (1) including a housing (4) running on wheels (6), a motor-pump unit (2,3) in the housing (4) and a high-pressure hose (13) connecting the high-pressure side (9) of the pump (3) with a cleaning gun (12), a hose accumulator (7), capable of storing the hose (13), is placed within the housing (4), the latter having a slot. (14) for the hose (13). Preferably, the hose accumulator (7) comprises a drum (not shown), on which the hose (13) may be wound by means of a hand crank (8).

Abstract: In a drive arrangement for driving a pump of the axial-piston type, of which solely the swash-plate member (8) is shown, from a motor (1), the main novel feature is that the motor shaft (9) is directly connected or connectable to the swash-plate member (8), thus eliminating problems caused by a previously used intermediate shaft between the motor shaft and the swash-plate member.

Abstract: In a high-pressure cleaner of the type comprisinga) a high-pressure pump (3),b) a motor driving said pump (3),c) a liquid supply (1,2) connected to the suction side (8) of the pump (3),d) a cleaning gun (4) connected to the delivery side (6) of the pump (3) through a delivery duct (10) and comprising a manually operable stop valve, ande) a bypass valve (16,17) adapted to in its open condition to allow flow frem the delivery side (6) to the suction side (8) of the pump (3),the main novel feature isf) flow-sensing mechanism (15,20) associated with the delivery duct (10) and adapted to open the bypass valve (16,17) when flow in the delivery duct ceases or decreases below a predetermined magnitude and to act upon it in the closing direction when flow is equal to or above the predetermined magnitude.