摘要:
A flange assembly and related methods of connecting two exhaust pipes together with a flange assembly are provided. The flange assembly includes a first flange having a first mating face and a second flange connected to the first flange, wherein the second flange has a second mating face. A sealing structure is formed with the mating faces of the first and second flanges, wherein the sealing structure comprises a groove positioned on the first mating face and a ridge positioned in the second mating face, wherein the ridge occupies at least a portion of the groove with the first flange connected to the second flange.
摘要:
An object of the present invention is to use a mat member (100) that is superior in handling characteristics, for, for example, a muffler or the like for automobiles, wherein the mat member (100) of the present invention includes: inorganic fibers; a first surface (113a) having a plurality of needle penetration marks (114a) and/or a plurality of needle protrusion marks (115b); and a second surface (113b) opposite to the first surface (113a) having a plurality of needle protrusion marks (115a) and/or a plurality of needle penetration marks (114b), a plurality of needle marks (114a, 114b, 115a, 115b) being formed in the mat member (100) by needle punching and extending from the needle penetration mark (114a, 114b) to the needle protrusion mark (115a, 115b), an inorganic fiber bundle (118a, 118b) including a plurality of the inorganic fibers oriented in a closed loop configuration being formed at the needle protrusion mark (115a, 115b).
摘要:
The invention relates to a method for producing an exhaust-gas aftertreatment device (2), which has at least one monolith (8) for exhaust gas aftertreatment in a housing (4), which is assembled from a jacket (5) that is closed in the circumferential direction and two end funnels (6), comprising the following steps of A: assembling and filling the housing (4), for which purpose the at least one monolith (8) is axially inserted into the jacket (5) together with at least one support mat (9) that encloses the at least one monolith (8) in the circumferential direction, and for which purpose the funnels (6) are each inserted into the jacket (5) or placed onto the jacket (5) by means of an axial connecting section (10) shaped complementary to the cross-section of the jacket (5), in such a way that each connecting section (10) and an axial end section (25) of the support mat (9) axially overlap, B: calibrating the housing, for which purpose the jacket (5), including the connecting sections (10) of the funnels (6), is reduced from a starting cross-section (13) to an end cross-section (15) in order to produce a predetermined radial preload in the at least one support mat (9) at least in a support area (16) extending from the one connecting section (10) to the other connecting section (10) in order to retain the at least one monolith (8) in the jacket (5).
摘要:
A cylindrical gasket includes a reinforcing member 70, a heat-resistant material 71, and pores which are dispersedly distributed in the reinforcing member 70 and the heat-resistant material 71, the reinforcing member 70 and the heat-resistant material 71 are intertwined with each other so as to be provided with structural integrity, and with respect to a total volume of the cylindrical gasket, the reinforcing member 70 occupies a volume of 32 to 60%, the heat-resistant material 71 occupies a volume of 5 to 58%, and the pores occupy a volume of 10 to 35%.
摘要:
An engine muffler (10; 10A; 10B) includes a cylindrical muffler body (20) partitioned by at least one partition plate (30, 40) in a longitudinal direction into a plurality of expansion chambers (91 - 93). The muffler body is constructed of a plurality of divided muffler body members (21 - 23) divided from each other in the longitudinal direction at the position of the partition plate, and a gap (Cr1, Cr2) is provided between opposed end portions (21a, 22a, 22c, 23a) of the body members. The partition plate has an annular section (31, 41) held in fitting engagement with the inner peripheral surface of at least one of the opposed end portions, and it is positioned in such a manner as to close the gap. The opposed end portions are welded, from a radially outward direction, to the outer peripheral surface of the annular section along their respective entire perimeters.
摘要:
Die Erfindung betrifft einen Schalldämpfer (1), insbesondere Fahrzeugschalldämpfer, mit einem durchgehenden Rohr (2) sowie einer ersten Resonatorkammer (14) und einer zweiten Resonatorkammer (15), die jeweils das Rohr (2) umgeben und in axialer Richtung hintereinander angeordnet sind, wobei das Rohr (2) in seinem Mantel (3) zumindest eine erste Öffnung (7), die in die erste Resonatorkammer (14) mündet, und zumindest eine zweite Öffnung (8), die in die zweite Resonatorkammer (15) mündet, aufweist. Zur flexiblere Herstellbarkeit werden die Resonatorkammem (14, 15) durch einen ersten Gehäuseteil (4) und einen zweiten Gehäuseteil (5) gebildet, die jeweils einen um eine Achse ausgebildeten Mantel aufweisen, wobei in axialer Richtung die Länge des Mantels des einen Gehäuseteils (4; 5) zumindest die Hälfte der Länge des Mantels des anderen Gehäuseteils (5; 4) beträgt, und sind die Gehäuseteile (4, 5) ineinander geschoben und überlappen deren Mäntel zumindest teilweise, wobei im Überlappungsbereich (6) die Mantelaußenseite (4a) des ersten Gehäuseteils (4) an der Mantelinnenseite (5b) des zweiten Gehäuseteils (5) anliegt und die Mantelaußenseite (4a) des ersten Gehäuseteils (4) und die Mantelinnenseite (5b) des zweiten Gehäuseteils (5) zumindest im Überlappungsbereich (6) jeweils einen in axialer Richtung unveränderlichen Quer-schnitt aufweisen, und weisen die Gehäuseteile (4, 5) jeweils auf der dem Überlappungsbereich (6) abgewandten Seite eine Ausnehmung (21, 22) auf, durch die das Rohr (2) hindurchtritt.
摘要:
The invention relates to a method for producing an exhaust gas system (10) by means of the following steps: First of all a plurality of pipe sections (14, 16, 18) are inserted into one another with a clearance fit, so that connection points (30) are formed at which two pipe sections (14, 16, 18) respectively overlap. Then the pipe sections (14, 16, 18) are calibrated at the connection points (30) so that a narrow gap is produced. Next the connection points (30) are soldered. The invention also relates to an exhaust gas system having a plurality of pipe sections (14, 16, 18) which are inserted into one another and are soldered together, wherein the respective outer pipe sections (14, 16, 18) are calibrated.
摘要:
A method for filling a muffler with a fibrous material (44) is disclosed. The muffler includes partitions which form a first chamber (13) and second chamber (15), and a first muffler pipe (28) having an outlet end (35). A filling aperture (23) at one end of the second muffler pipe (18) is positioned in the first muffler chamber. The second muffler pipe has a filling sleeve (32) therein, the filling sleeve having a filling discharge opening (36) that coordinates with the filling aperture of the second muffler pipe. The first muffler chamber is filled with fibrous material by applying a vacuum source (42) to the first muffler pipe, which draws the fibrous material through the filling aperture. The filling aperture of the second muffler pipe is then positioned into the second muffler chamber, and the second muffler chamber is filled in the same manner as the first muffler chamber. The filling sleeve is then removed from the second muffler pipe.