首页> 外国专利> MULTI-PART HOUSING FOR A DIAPHRAGM PUMP, DIAPHRAGM PUMP, AND EXHAUST GAS AFTERTREATMENT SYSTEM

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

机译:隔膜泵,隔膜泵和排气后处理系统的多室外壳

摘要

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.
机译:本发明涉及一种用于隔膜泵(10)的多部分壳体(1),其包括彼此连接的第一塑料部分(2)和第二塑料部分(3),其中,所述连接通过连接件形成。在第一塑料部件(2)的空心圆柱形套环(5)和插入所述套环中的第二塑料部件(3)的外周部分(6)之间的径向焊接缝(4)。根据本发明,第二塑料部件(3)的外周部分(6)在周向焊接的腹板(7)的区域中相对于模具的内径(D)径向更大(a)。第一塑料部件(2)的空心圆柱形套环(5),使得径向力作用在套环(5)上,导致套环(5)伸长,其中,在焊接腹板(7)处的径向较大区域为了减小伸长率,在插入深度(t)上变化。本发明还涉及一种具有根据本发明的壳体(1)的隔膜泵(10),并且涉及一种具有根据本发明的隔膜泵(10)的废气后处理系统。

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