Abstract: A plug connector for fluid conduits. The plug connector including a housing part with a plug socket for the fluid-tight insertion of a tubular plug-in part, a holding element for locking and a fluid seal for sealing the inserted plug-in part. The plug connector being arranged in a plug socket, the housing part being in two parts comprising a base part and an insert plate which is connected to the base part via a snap-action positive fit connection. The base part comprising a receiving part for the holding element, the fluid seal and the insert part, and a joining part for the joining connection of the housing part to a fluid conduit.

Abstract: A connecting device for a plug-in connection of at least one pipeline having a housing part having at least one receiving opening for the insertion of the pipeline. A clamping ring is arranged in the receiving opening and, in order to lock the pipeline in place, interacts with an inner cone of the housing part. The housing part is made in two parts including a base part and an insert part, which is connected to the base part via a snap-in action forming-fitting connection. The insert part has a direct seal for resting on the circumference of the inserted pipeline. The insert part is formed of a first relatively hard and dimensionally stable plastic material, and has a dirt seal which consists of a second, relatively soft and elastic plastic material and is molded directly into the first material as a single piece with a cohesive material joint therebetween.

Abstract: A plug connector for fluid conduits. The plug connector including a housing part with a plug socket for the fluid-tight insertion of a tubular plug-in part, a holding element for locking and a fluid seal for sealing the inserted plug-in part. The plug connector being arranged in a plug socket, the housing part being in two parts comprising a base part and an insert plate which is connected to the base part via a snap-action positive fit connection. The base part comprising a receiving part for the holding element, the fluid seal and the insert part, and a joining part for the joining connection of the housing part to a fluid conduit.

Abstract: A connecting device for a plug-in connection of at least one pipeline having a housing part having at least one receiving opening for the insertion of the pipeline. A clamping ring is arranged in the receiving opening and, in order to lock the pipeline in place, interacts with an inner one of the housing part. The housing part is made in two parts including a base part and an insert part, which is connected to the base part via a snap-in action forming-fitting connection. The insert part has a direct seal for resting on the circumference of the inserted pipeline. The insert part is formed of a first relatively hard and dimensionally stable plastic material, and has a dirt seal consists of a second, relatively soft and elastic plastic material and is molded directly into the first material as a single piece with a cohesive material joint therebetween.

Abstract: A connecting device for pipes conducting pressure medium, having a sleeve-like insert part which can be inserted in a frictional or form-fitting manner into a connecting opening in a connecting body and surrounding a receiving opening for a pipe to be inserted, a sealing element for producing a seal between the connecting body and the pipe, and a holding element with holding arms which extend radially inwardly into the receiving opening. A release sleeve engages displaceably in the insert part in such a manner that by pushing in the release sleeve, the holding element is deformed elastically for releasing the pipe. The holding element is held by an outer circumferential region in an essentially clearance-free manner axially relative to the insert part, so that elastic deformation takes place in the region of the holding arms when inserting or releasing the pipe.

Abstract: A socketless fitting for releasable connection of a pressurized line. The fitting has a housing body with a receiving opening to insert one end of the line, and an inner sleeve attached in the housing body in an arrangement that extends coaxially within the receiving opening for engagement into the inserted line end. The inner sleeve is fastened in the housing body media-tight around the periphery by a connector and preferably engages in the line media-tight around the periphery. A clamping element axially movable in the receiving opening cooperates with an inner surface of the housing body to secure the line end onto the inner sleeve. Media-tight outward sealing is accomplished by sealing engagement of the essentially rigidly secured inner sleeve in the line, because the inner sleeve itself is also tightly joined to the housing body.

Abstract: A connecting device for pipes conducting pressure medium, having a sleeve-like insert part which can be inserted in a frictional or form-fitting manner into a connecting opening in a connecting body and surrounding a receiving opening for a pipe to be inserted, a sealing element for producing a seal between the connecting body and the pipe, and a holding element with holding arms which extend radially inwardly into the receiving opening. A release sleeve engages displaceably in the insert part in such a manner that by pushing in the release sleeve, the holding element is deformed elastically for releasing the pipe. The holding element is held by an outer circumferential region in an essentially clearance-free manner axially relative to the insert part, so that elastic deformation takes place in the region of the holding arms when inserting or releasing the pipe.

Abstract: Plug-type connector for compression systems, having a housing part and a plug part. The plug part has a plug shaft that can be hermetically inserted into a receptacle opening of the housing part and releasably arrested by a retainer element. Retainer projections, elastically movable in the radial direction, seat the retainer element in an arrested position between an inner annular shoulder in the receptacle opening and an outer annular shoulder of the plug shaft. The retainer element on the plug shaft is axially displaceable between a safety position in which the retainer projections are blocked, and a release position in which the retainer projections are freed for radial release movement.

Abstract: A socketless fitting for releasable connection of a pressurized line. The fitting has a housing body with a receiving opening to insert one end of the line, and an inner sleeve attached in the housing body in an arrangement that extends coaxially within the receiving opening for engagement into the inserted line end. The inner sleeve is fastened in the housing body media-tight around the periphery via connectors and preferably engages in the line media-tight around the periphery. Media-tight outward sealing is accomplished by sealing engagement of the essentially rigidly secured inner sleeve in the line, because the inner sleeve itself is also tightly joined to the housing body.

Abstract: In an apparatus for evaluating and controlling the driving state of a traveling wave motor composed of a stator equipped with an elastic vibrating body and an excitation system composed of a plurality of segments and generating ultrasound vibrations as well as a rotor that is in contact under pressure with the stator in a surface region and is equipped with a sensor device that is disposed at the vibrating body or at the excitation system, the signals of the sensor device are fed to the regulating circuit of an evaluation and control unit for controlling the excitation system. The sensor device includes at least two sensor surfaces which are attached to the vibrating body or to the excitation system and the signals corresponding to the sensor surfaces are fed separately to the evaluation and control unit.