Laser welded air control valve and method

An engine air control valve assembly (10) includes a valve shaft (12) and a valve plate (14) made from composite polymeric plastics that are formed to be welded together by infrared laser welding. In a preferred embodiment, the valve shaft (12) includes an intermediate portion (20) with a longitudin...

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Bibliographische Detailangaben
Hauptverfasser:	GNAGE, DOUGLAS RONALD, DEANGELIS, GARY JOHN, PEERS, DAVID M
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES 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 INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRANSPORTING WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An engine air control valve assembly (10) includes a valve shaft (12) and a valve plate (14) made from composite polymeric plastics that are formed to be welded together by infrared laser welding. In a preferred embodiment, the valve shaft (12) includes an intermediate portion (20) with a longitudinal open groove (22) along one side. The valve plate (14) is formed with a raised central portion (28) that engages the valve shaft (12) in assembly. A tongue (32) extends inward from the raised portion (28) of the plate (14) and is fitted into the shaft groove (22) after assembly of the shaft (12) into a valve body (18). The tongue (32) is softened by a laser beam applied to the tongue/groove interface, thereby welding the valve components (12, 14) together in the installed location.