MULTI-PART HOUSING FOR A DIAPHRAGM PUMP, DIAPHRAGM PUMP, AND EXHAUST GAS AFTERTREATMENT SYSTEM

The invention relates to a multi-part housing (1) for a diaphragm pump (10), comprising a first plastic part (2) and a second plastic part (3) which are connected to each other, wherein the connection is formed by a radial welded seam (4) between a hollow-cylindrical collar (5) of the first plastic...

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Bibliographische Detailangaben
Hauptverfasser:	FINNAH, Guido Bernd, SOEHNER, Thomas, HOLLAENDER, Christian
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a multi-part housing (1) for a diaphragm pump (10), comprising a first plastic part (2) and a second plastic part (3) which are connected to each other, wherein the connection is formed by a radial welded seam (4) between a hollow-cylindrical collar (5) of the first plastic part (2) and an outer peripheral section (6) of the second plastic part (3) inserted in said collar. According to the invention, the outer peripheral section (6) of the second plastic part (3) is, in the region of a circumferential welded web (7), radially larger (a) in relation to an inner diameter (D) of the hollow-cylindrical collar (5) of the first plastic part (2), such that a radial force acts on the collar (5) causing an elongation of the collar (5), wherein the radially larger area at the welded web (7) varies over an insertion depth (t) in order to reduce the elongation. The invention further relates to a diaphragm pump (10) having a housing (1) according to the invention and to an exhaust gas aftertreatment system having a diaphragm pump (10) according to the invention.