Abstract: A cleaning device for cleaning an interior wall of a container includes a rotatable driveshaft which is supported in a nozzle head mounted for rotation about an axis extending transversely to the driveshaft. A nozzle holder is mounted on the driveshaft has an arm for holding a nozzle for ejecting a liquid under pressure. The driveshaft and/or the nozzle head are reversibly pivotable via a gear mechanism, with an auxiliary drive connected to the gear mechanism for driving the nozzle holder.

Abstract: A cleaning device for cleaning an interior wall of a container includes a rotatable driveshaft which is supported in a nozzle head mounted for rotation about an axis extending transversely to the driveshaft. A nozzle holder is mounted on the driveshaft has an arm for holding a nozzle for ejecting a liquid under pressure. The driveshaft and/or the nozzle head are reversibly pivotable via a gear mechanism, with an auxiliary drive connected to the gear mechanism for driving the nozzle holder.

Abstract: A nozzle for treating an interior of a workpiece by means of a highly pressurized fluid medium flowing out of at least one nozzle channel. The nozzle channel branches off from a supply borehole provided in the form of a blind hole. The nozzle is designed in such a manner that the nozzle channel, starting from the bottom end area of the supply borehole, extends at an angle less than or equal to 90° to the supply bore hole in the inflowing direction, the bottom of the supply borehole being provided with an elevation whereby narrowing the transition area to the nozzle channel.

Abstract: A high-pressure valve assembly includes a flange defining an axis. Projecting into the flange is a valve body which is sealed against the flange by a static ring seal. Provided on one side of the valve body is a spring-loaded closure member which is supported for movement in a direction of the axis to form a suction valve, and on another side of the valve body in opposition to the one side is a spring-loaded tappet which is supported for movement in the direction of the axis to form a pressure valve. A channel connects the suction valve with the pressure valve and has one end porting into a pressure chamber of the valve body adjacent to the pressure valve. The pressure chamber extends in axial direction of the tappet and is sized to extend substantially above a bottom edge of the ring seal.

Abstract: A nozzle head, having a feed line for a high-pressurized fluid, a channel for delivering an abrasive substance, with which the fluid can be loaded, as well as a discharge line, from which the fluid, loaded with abrasive substance, can issue, is designed such that the feed line and the channel run parallel or almost parallel to each other, and that the discharge line issues sideways from the nozzle head so as to run at an angle to the feed line.

Abstract: A high-pressure valve assembly includes a flange defining an axis. Projecting into the flange is a valve body which is sealed against the flange by a static ring seal. Provided on one side of the valve body is a spring-loaded closure member which is supported for movement in a direction of the axis to form a suction valve, and on another side of the valve body in opposition to the one side is a spring-loaded tappet which is supported for movement in the direction of the axis to form a pressure valve. A channel connects the suction valve with the pressure valve and has one end porting into a pressure chamber of the valve body adjacent to the pressure valve. The pressure chamber extends in axial direction of the tappet and is sized to extend substantially above a bottom edge of the ring seal.

Abstract: A nozzle head, having a feed line for a high-pressurized fluid, a channel for delivering an abrasive substance, with which the fluid can be loaded, as well as a discharge line, from which the fluid, loaded with abrasive substance, can issue, is designed such that the feed line and the channel run parallel or almost parallel to each other, and that the discharge line issues sideways from the nozzle head so as to run at an angle to the feed line.

Abstract: A nozzle for generating a high-pressure jet of a flowable medium, having a nozzle body and a nozzle disk which is embedded in the nozzle body in a recess. The nozzle body includes an axial nozzle bore which leads into at least one of an inlet bore and an outlet bore. The nozzle disk rests under compressive strain on contact surfaces of the recess. Also included is a method for creating a nozzle having a nozzle disk embedded in a nozzle body, the steps comprising: providing a nozzle disk; forming a nozzle body around the nozzle disk in a recess so as to create compressive strain on contact surfaces of the nozzle disk.

Abstract: The invention relates to a spray gun with a handle part (3) comprising a safety switch (6). A nozzle tube (1) is connected on one end of said handle and a feed line (2) is connected to the other end thereof. Said spray gun, which can be actuated in a contactless manner by means of an actuating element (5) and a switch surface (4), is characterised in that the switch surface (4) contains an emitting and receiving unit, whereby the active area thereof is disposed in the antenna field (8) of the switch surface (4) and is connected to an evaluating device (7) which is in permanent active communication with the actuating element (5), which contains an electronic circuit, and which authorises control of the feed supply of the media.

Abstract: A sealing device for a shaft (2) or rod which is movably disposed in a guide arranged between a high-pressure space (10) and a low-pressure area (11) of a pressure-resistant housing (1) bounding the high-pressure space (10), and which is surrounded by a sealing ring (3), is further developed such that the sealing ring (3) is partially deformed by means of a deformable pressure ring (4) supported under pressure at the outer circumference and circumferentially rests against the shaft (2) or the rod or almost rests against the shaft (2) or the rod.

Abstract: A device for cleaning an inner pipe which comprises a nozzle head comprised of a feed borehole axially disposed therein, at least two rotation nozzles communicating with the feed borehole, at least two cleaning nozzles communicating with the feed borehole and a shaft. A rinsing nozzle communicates with the feed borehole and extends upwardly at an angle from the longitudinal axis of the feed borehole. The shaft is received in an outer sleeve whereby when the device is inserted into an inner pipe and a medium is flowed through the borehole and out of the rotation nozzles a force is generated when the medium emerging from the rotation nozzles contacts the wall of the inner pipe which force causes the nozzle head to rotate.

Abstract: A control arrangement for a high-pressure cleaning system having a high-pressure pump and at least one spraying device, which can be connected to the high-pressure pump by high-pressure hoses, and has the following: at least one spray circuit at the spraying device, at least one analyzing circuit connected with the spray circuit, the spray circuit being connected by a conductive connection at the high-pressure hose with the machine, particularly the high-pressure pump, and at least one on/off switch and at least one oscillator by means of which a signal identifying the switching condition of the switch can be impressed on the current flow to the analyzing circuit, and one single-wire connection respectively being provided between each spray circuit and each analyzing circuit, by means of which a supply voltage can be applied to the spray circuit.

Abstract: A pump, particularly a plunger pump, comprises a crank mechanism oscillating a plunger in a housing and an elastic sealing device fastened to the plunger. The sealing device provides a pressure-tight sealing with respect to a lower housing space containing the crank mechanism. As a result, an intermediate space in the housing may be filled with air. The intermediate space is hermetically separated from the lower housing space containing the crank mechanism.

Abstract: A reversing valve for a high pressure spring gun, comprising: a pump connection; a connecting duct; a first section of the connecting duct connected to the pump connection; a second section of the connecting duct leading to a high pressure discharge; a block valve, being a transition between the first and second sections, that can be isolated by switching off the high pressure gun; a throttle, linked with the first section of the connecting duct to let fluid through; an exhaust duct linked to the throttle and leading to a drain; and a discharge valve operated by an electric switch to isolate the exhaust duct when the high pressure spray gun is switched on.

Abstract: A pump, particularly a plunger pump, comprises a crank mechanism oscillating a plunger in a housing and an elastic sealing device fastened to the plunger. The sealing device provides a pressure-tight sealing with respect to a lower housing space containing the crank mechanism. As a result, an intermediate space in the housing may be filled with air. The intermediate space is hermetically separated from the lower housing space containing the crank mechanism.

Abstract: A rotary drive for a hydraulic tool includes a housing; a hydraulic connection on the housing; and a rotatable hollow shaft in the housing, having an axially extending center passage duct and being connected with a nozzle carrier. A sleeve is inserted from a hydraulic connection end of the housing into the passage duct. A seal consisting of at least one separate ring seal rests in a sealing manner on the wall of the passage duct and on the sleeve. A device exerts pressure on the seal.

Abstract: A nozzle head includes a nozzle carrier so mounted to a stationary housing as to allow rotation thereof about a longitudinal axis by a recoil action caused by pressure water exiting spray nozzles accommodated in the nozzle carrier, and a hollow shaft rotatably supported in the housing and secured to the nozzle carrier. The hollow shaft has a central passage for conducting pressure water to the spray nozzles; and has a pressure water connection proximate end face which is supported by a first sealing disk of highly wear-resistant material, e.g. ceramics. The first sealing disk is connected to the hollow shaft via a mounting so as to conjointly rotate with the nozzle carrier and hollow shaft during operation of the nozzle head. The shaft-distal end face of the first sealing disk bears upon a second stationary sealing disk which is also made of a highly wear-resistant material, e.g. ceramics, and received in a mounting which is fixed via a seal ring in the housing.

Abstract: A high-pressure plunger pump assembly, in particular for working pressures above 2000 bar, includes a housing, a cylinder received in the housing and defining a working space which has an expanded area along a section thereof for receiving a sleeve therein, and a plunger slidably moveable in the working space of the cylinder and in the sleeve and being suitably operated by a drive for reciprocating movement. The sleeve has one end closer to the plunger drive and formed with an annular flange. A suction valve communicates with the cylinder for admitting fluid from a suction chamber into the working space, and a pressure valve communicates with the cylinder for expelling fluid from the working space during a pressure stroke of the plunger, with a seal being positioned in a transitional area from the annular flange to the cylinder between the working space and the suction chamber.

Abstract: A pump for distributing water at an extremely high-pressure to several appliances. Every appliance can connect and disconnect independently and has associated with it a device that diverts the water trapped in it when it disconnects. The object is to minimize wear in the water-diversion device. The device accommodates a constricted section in the form of an annular space that the water trapped in the appliance can escape through. Such pumps are employed for cleaning a wide range of articles.

Abstract: A maximum-pressure plunger plump has, coaxial with its longitudinal axis, a compression valve and a suction valve. It has a sleeve that floats on a plunger. The sleeve rests on the end facing the head of the pump on an inset. the inset is provided with a seat area for the body of the suction valve and with suction channels. The sleeve has a bushing. The suction valve is in a form of a disk. It has a spring-loaded annular body that rests on the valve-seat area that the suction channels open out of in the insert in the pump head.The plunger's bushing (9) extends to th eend of the sleeve (7) that faces the head (2) of the pump with its face against the insert (12) and in that a sealing sleeve (15) that overlaps the area or seam of impact between the insert and the sleeve is accommodated in the flow channel between the bushing and the insert.