Abstract: A scraping tool for cleaning a combustion chamber of an internal combustion engine is provided. The scraping tool includes at least one scraper unit, a longitudinal carrier, and an activation device. The at least one scraper unit is configured to clean at least one surface of a cavity. The longitudinal carrier, preferably a rod or a tube, connects the at least one scraper unit with the activation device. The at least one scraper unit is swivel mounted on the longitudinal carrier and can be swiveled from a first position for introducing the at least one scraper unit into the cavity to a second position for cleaning at least one surface of the cavity. In the first position, the at least one scraper unit is disposed substantially parallel to the longitudinal carrier. In the second position, the at least one scraper unit is disposed at an angle between 70° and 110°, preferably between 80° and 100°, and more preferably at substantially 90°, with respect to the longitudinal carrier.

Abstract: A tool for machining a groove of a rotation-symmetric component, preferably a piston of an internal combustion engine, is provided. The machining is carried out by a rotation of the tool around an axis of symmetry of the rotation-symmetric component to be machined. The tool includes at least one arm disposed in such a way that a circumference of the rotation-symmetric component can at least be partially enclosed. Also, a machining device for machining of the groove is provided on the at least one arm. At least one adjusting device is provided to adjust a contact force of the at least one machining device on the rotation-symmetric component, and to adapt the tool to different diameters of the rotation-symmetric component.

Abstract: A tool for machining a groove of a rotation-symmetric component, preferably a piston of an internal combustion engine, is provided. The machining is carried out by a rotation of the tool around an axis of symmetry of the rotation-symmetric component to be machined. The tool includes at least one arm disposed in such a way that a circumference of the rotation-symmetric component can at least be partially enclosed. Also, a machining device for machining of the groove is provided on the at least one arm. At least one adjusting device is provided. With the help of the at least one adjusting device, a contact force on the rotation-symmetric component of the at least one machining device can be selected. Further, the tool includes an adjusting device with which the tool can be adapted to different diameters of a rotation-symmetric component.

Abstract: A scraping tool for cleaning a combustion chamber of an internal combustion engine is provided. The scraping tool includes at least one scraper unit, a longitudinal carrier, and an activation device. The at least one scraper unit is configured to clean at least one surface of a cavity. The longitudinal carrier, preferably a rod or a tube, connects the at least one scraper unit with the activation device. The at least one scraper unit is swivel mounted on the longitudinal carrier and can be swiveled from a first position for introducing the at least one scraper unit into the cavity to a second position for cleaning at least one surface of the cavity. In the first position, the at least one scraper unit is disposed substantially parallel to the longitudinal carrier. In the second position, the at least one scraper unit is disposed at an angle between 70° and 110°, preferably between 80° and 100°, and more preferably at substantially 90°, with respect to the longitudinal carrier.