Coupling device, crankcase ventilation device and fresh-air system

• Main Authors: POTSCHER SJARD, PROETTEL THOMAS, KAISER SVEN ALEXANDER
• Format: Patent
• Language: Chinese; English
• Published: 12.12.2012
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; CRANKCASE VENTILATING; ENGINE PLANTS IN GENERAL; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; JOINTS OR FITTINGS FOR PIPES; LIGHTING; LUBRICATING; LUBRICATING INTERNAL COMBUSTION ENGINES; LUBRICATING OF MACHINES OR ENGINES IN GENERAL; MACHINES OR ENGINES IN GENERAL; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; STEAM ENGINES; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THERMAL INSULATION IN GENERAL; WEAPONS

The present invention relates to a coupling device (1) for connecting a first fluid line (5) to a second fluid line (6), having a first connecting piece (2) which has an external latching contour (7) on the outer side thereof and which is or can be connected to the first fluid line (5), having a second connecting piece (3) which has an external latching contour (8) on the outer side thereof and which is or can be connected to the second fluid line (6), and having a sleeve (4) into which the two connecting pieces (2, 3) can be inserted at opposite ends and which has, on the inner side thereof, internal latching contours (10, 11) which are complementary to the external latching contours (7, 8) and which latch with the external latching contours (7, 8) when the connecting pieces (2, 3) are inserted. Cheap production is possible if the internal latching contours (10, 11) are formed integrally on the sleeve (4).