Abstract: The invention relates to an apparatus for producing CO2 pellets from CO2 snow, in particular, for a cleaning device for spraying surfaces to be treated with a mixed stream of a pressurized gas and CO2 pellets, includes a compressor device for compressing CO2 snow to form CO2 pellets. The compressor device includes a gear compressor. The gear compressor includes at least one compressor wheel which is mounted rotatable about a first rotation axis and has a plurality of compressing elements, and includes at least one intake wheel which has a plurality of snow intakes for accepting CO2 snow. The snow intakes are configured corresponding to the compressing elements. The intake wheel is mounted rotatable about a second rotation axis and cooperates with the at least one compressor wheel. The intake wheel includes an intake wheel sleeve with an intake wheel sleeve wall.

Abstract: A vehicle washing installation having two stands on which a nozzle beam with a plurality of high-pressure nozzles is held so as be adjustable in height is provided. The nozzle beam is surrounded by a protective body extending along the nozzle beam and having at least one outlet opening for cleaning liquid, the protective body being adjustable in height together with the nozzle beam and being movable relative to the nozzle beam upon striking an obstacle, the movement of the protective body relative to the nozzle beam being detectable by a sensor assembly in order to provide a control signal.

Abstract: A vacuum cleaner is provided, including a suction inlet, a dirt collection container, a filter device, a suction conduit, a suction unit, wherein the dirt collection container is in flow communication with the suction unit via the filter device and the suction conduit and wherein the filter device has a negative pressure applied to it by the suction unit, and including an external air valve device, wherein the filter device is capable of having external air applied thereto on the clean side thereof via the external air valve device and wherein for cleaning the filter device the external air valve device is capable of being brought from a closed valve position to an open valve position and back again from the open valve position to a closed valve position, characterized by a battery device for supplying energy to the external air valve device.

Abstract: A piston pump for a high-pressure cleaning appliance is provided, including a pump block having a plurality of pump chambers, into each of which one piston plunges, and including a pump head having a suction inlet and a pressure outlet, each pump chamber in flow connection via a suction valve with the suction inlet and via a pressure valve with the pressure outlet, and including a clamping bracket engaging around the pump head. The piston pump can have a single U-shaped clamping bracket oriented symmetrically in relation to the longitudinal pump axis, and the pump head and the pump block form between them downstream of the pressure valves a pressure chamber in which a central, piston-like insert part is arranged, the insert part being surrounded by a sealing element and having a passage, and a pressure line oriented coaxially with the longitudinal pump axis being arranged downstream of the passage.

Abstract: A motor-pump unit includes an electric motor and a pump. The electric motor has a motor housing, on the outside of which a cooling channel is arranged. The pump has a suction inlet and a pressure outlet. Liquid to be pressurized can be fed by way of the cooling channel to the suction inlet. In order that the motor-pump unit can be produced and assembled more cost-effectively, the motor housing includes a first housing part and a second housing part, which are connectable to each other in a liquid-tight manner and between them form the cooling channel.

Abstract: A drivable floor cleaning machine is provided, including a chassis, at least one cleaning head, and a holding device capable of holding the cleaning head on the chassis and lifting it relative to the chassis, the holding device including a first rod device rotatably held by a first bearing device on the chassis, a second rod device rotatably held on the chassis by means of a second bearing device, a third bearing device rotatably holding the cleaning head on the first rod device, and including a fourth bearing device rotatably holding the cleaning head on the second rod device, wherein the cleaning head is supported on a stop when a specific lifting position of the cleaning head relative to the chassis is reached, and on which stop the cleaning head can be rotated.

Abstract: A manually guided floor cleaning machine is provided, including a chassis with a front end and a rear end in relation to a straight ahead forward travel direction, a wheel arrangement, which is arranged on the chassis in the region of the rear end, and a cleaning head, which is pivotably arranged on the chassis in the region of the front end, at least one brush being arranged on the cleaning head and a drive device being arranged for the driven rotation of the at least one brush, a rotational axis of the at least one brush being parallel to a wheel axis of the wheel arrangement in the straight ahead forward travel direction.

Abstract: The invention relates to a high-pressure cleaning appliance comprising a first functional device required for operation in the form of a heatable heat exchanger for heating a liquid that is dischargeable from the high pressure cleaning appliance, and at least one further, second functional device required for operation which is arranged below the heat exchanger. In order to develop such a high-pressure cleaning appliance such that it is more user friendly to maintain, the invention proposes that the high-pressure cleaning appliance comprise a first appliance unit having a carrying device on which the heat exchanger is held, and a second appliance unit having a support device on which the at least one second functional device is held, and that the carrying device be releasably connectable to the support device in a force-locked and/or positively-locked manner.

Abstract: A vacuum appliance is provided including a dirt collection container for sucked-in vacuumed material, a suction unit for subjecting the dirt collection container to the action of negative pressure via a suction chamber, at least one filter element between the dirt collection container and the suction chamber in the flow direction of the air sucked in by the suction unit, at least one rechargeable battery for providing electrical energy for the suction unit, and at least one battery receptacle for holding the battery on the vacuum appliance. The vacuum appliance includes a filter cover transferrable from a closed position in which the filter element is covered, to a removal position in which the filter element is removable from and insertable into the vacuum appliance on the clean space side, and vice versa, and which filter cover includes the battery receptacle for the battery.

Abstract: A heatable high-pressure cleaning device (10) is provided with a fuel-operated heat exchanger (19) and a fuel tank (34) which has a tank upper section (38) with a closable filling opening (34) and a tank lower section (36) forming the base (48) of the fuel tank (34). In order to develop the heatable high-pressure cleaning device (10) further in such a manner that it can be produced more inexpensively and have a longer service life, the tank upper section (38) can be connected to the tank lower section (36) in a materially joined manner via a join area (60) and the fuel tank (34) can be fillable with liquid fuel only up to beneath the join area (60) in a horizontal position of use of the high-pressure cleaning device (10).

Abstract: An implement carrier comprises an implement hydraulic system (44) adapted to supply hydraulic fluid to an implement (12). The implement hydraulic system (44) comprises an implement circuit (106) via which hydraulic fluid may be pumped to the implement (12) to power the same, and at least one of: a recirculation circuit (110) via which hydraulic fluid may bypass the implement (12), and a controllable variable flow implement hydraulic pump (38). A temperature control system (100) is arranged to compare a measured hydraulic fluid temperature to a minimum temperature of the hydraulic fluid. The temperature control system (100) is arranged to control, when the measured temperature is below the minimum temperature, a recirculation valve (60) to direct the hydraulic fluid pumped by the hydraulic pump (38) through the recirculation circuit (110) and/or the controllable variable flow implement hydraulic pump (38) to reduce the flow of hydraulic fluid pumped thereby.

Abstract: The inventions relates to an attachment device (1) for an implement (2) for an implement carrier vehicle (3), wherein the attachment device (1) is adapted to be fixedly attached to a vehicle, said attachment device (1) comprising: a main body (4) adapted to attach the implement (2) to, at least two elongated openings (5) in said main body (4) adapted to receive fastening bolts (6) for fastening the implement (2) to the attachment device (1), which bolts can move in the elongated openings (5), the at least two elongated openings being placed so that rotation of the implement (2) around an axis of rotation (x) is limited to the movement of the received bolts in the elongated openings, said axis of rotation (x) is located at a height from the bottom side of said main body of less than 40% of the total height of the main body (4).

Abstract: An articulated joint (1) for an implement carrier vehicle (10), said articulated joint (1) being adapted to connect a front vehicle body (2) and a rear vehicle body (3). The articulated joint (1) comprises a socket (4) arranged in a first articulation link portion (5), said first articulation link portion being adapted to be connected to one of said front or said rear vehicle body (2, 3). The articulation joint (1) further comprises a stud (6) arranged in a second articulation link portion (7), and extending along an axis A, said second articulation portion (7) being adapted to be connected to another one of said front or rear vehicle body (2, 3), said stud being pivotally arranged in said socket (4), and at least one annular sealing device (8) at least partly enclosing said stud and socket, and wherein said annular sealing device (8) comprises a sealing flange (9).