JPH01162019U

JPH01162019U -

Info

Publication number: JPH01162019U
Application number: JP5881488U
Authority: JP
Priority date: 1988-04-30
Filing date: 1988-04-30
Publication date: 1989-11-10

Description

[Brief explanation of drawings]

第１〜４図はこの考案の第１実施例を示し、第
１図は触媒装置を備えた内燃機関及び吸排気系の
概略図、第２図は触媒装置の断面図、第３図は第
２図の矢印による拡大断面図、第４図は保持部
材の断面図である。第５図はこの考案の第２実施
例を示し、保持部材の断面図である。第６図はこ
の考案の第３実施例を示し、保持部材の断面図で
ある。第７〜１４図は従来の触媒装置を示し、第
７図は触媒装置の断面図、第８図は触媒装置の断
面図、第９図は金属網を設けた触媒装置の断面図
、第１０図ａは保持部材の平面図、第１０図ｂは
保持部材の正面図、第１１図ａは保持部材の平面
図、第１１図ｂは保持部材の正面図、第１１図ｃ
は保持部材の側面図、第１２図は排気の流速状態
を示す説明図、第１３図は触媒用ケースの組付状
態を示す断面図、第１４図は触媒用ケースの組付
状態を示す断面図である。図において、２は内燃機関、８は吸気マニホル
ド、１２は排気マニホルド、２４は排気管、２６
は触媒装置、２８は触媒用ケース、３０は収容部
、３２は触媒体、３４は保持部材、３６は第１金
属網、３６ａは第１毛羽立部、３８は第２金属網
、そして３８ａは第２毛羽立部である。 1 to 4 show a first embodiment of this invention, FIG. 1 is a schematic diagram of an internal combustion engine equipped with a catalyst device and an intake/exhaust system, FIG. 2 is a cross-sectional view of the catalyst device, and FIG. 2 is an enlarged sectional view indicated by the arrow in FIG. 2, and FIG. 4 is a sectional view of the holding member. FIG. 5 shows a second embodiment of this invention, and is a sectional view of the holding member. FIG. 6 shows a third embodiment of this invention, and is a sectional view of the holding member. 7 to 14 show conventional catalyst devices, FIG. 7 is a sectional view of the catalytic device, FIG. 8 is a sectional view of the catalytic device, FIG. 9 is a sectional view of the catalytic device provided with a metal mesh, and FIG. Figure a is a plan view of the holding member, Figure 10 b is a front view of the holding member, Figure 11 a is a plan view of the holding member, Figure 11 b is a front view of the holding member, and Figure 11 c.
is a side view of the holding member, FIG. 12 is an explanatory diagram showing the flow rate state of exhaust gas, FIG. 13 is a cross-sectional view showing the assembled state of the catalyst case, and FIG. 14 is a cross-sectional view showing the assembled state of the catalyst case. It is a diagram. In the figure, 2 is an internal combustion engine, 8 is an intake manifold, 12 is an exhaust manifold, 24 is an exhaust pipe, 26
28 is a catalyst device, 28 is a catalyst case, 30 is a housing part, 32 is a catalyst body, 34 is a holding member, 36 is a first metal net, 36a is a first fluff part, 38 is a second metal net, and 38a is a This is the second fluffy part.

Claims

[Scope of utility model registration request]

In a catalyst holding structure that holds the catalyst body in a catalyst case via a holding member encapsulated on the outer surface of the catalyst body, a metal mesh having a fluffed portion is provided as the holding member, and this metal mesh is attached to the outer surface of the catalyst body. 1. A catalyst holding structure comprising one metal net to be encapsulated and another metal net to be polymerized and bonded to the one metal net.