JPH0337251U

JPH0337251U -

Info

Publication number: JPH0337251U
Application number: JP5230990U
Authority: JP
Priority date: 1989-05-18
Filing date: 1990-05-18
Publication date: 1991-04-11
Anticipated expiration: 2005-05-18
Also published as: JP2519234Y2

Description

[Brief explanation of drawings]

図面は本考案の一実施例を示し、第１図はシリ
ンダヘツドの縦断正面図で、第２図−線断面
図に対応し、第２図は第１図−矢視図、第３
図はセラミツクライナの第１例の斜視図、第４図
はそのセラミツクライナの平面図、第５図は第４
図−線断面図、第５Ａ図は第５図の矢ａか
ら見た端面図、第５Ｂ図は第５図ｂ−ｂ線切
断端面図、第６図は鋳造後の第５図矢示部の拡
大図、第７図は第６図矢示部の拡大図、第８、
第９図はセラミツクライナの第２、第３例を示す
斜視図、第１０〜第１１Ｂ図はセラミツクライナ
の第４例を示し、第１０図は平面図、第１１図は
第１０図−線断面図、第１１Ａ図は第１
１図の矢ａから見た端面図、第１１Ｂ図は第
１１図ｂ−ｂ線断面図、第１２図はセラ
ミツクライナの第５例の断面図であつて、第１１
図に対応する。ａ……分岐壁、ｂ……対向部、ｃ_１，ｃ_２……
開口の幅、ｄ……内壁、ｅ……空隙、ｆ……ガラ
ス、Ｑ……分割面、Ｒ……分岐領域、１……シリ
ンダヘツド（エンジン部品）、６……出口、７…
…二股管形排気通路（多岐管形排気通路）、８…
…シリンダヘツド本体（鋳物製部品本体）、９…
…二股管形セラミツクライナ（多岐管形セラミツ
クライナ）、１０……ライナ本体、１０_１……第
１筒状部（筒状部）、１１_１，１１_２……第１、
第２筒体、１２……スリツト（貫通部）、１６，
１７……透孔（貫通部）。 The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional front view of the cylinder head, which corresponds to the line sectional view in FIG. 2, and FIG.
The figure is a perspective view of the first example of the ceramic liner, Figure 4 is a plan view of the ceramic liner, and Figure 5 is the fourth example.
5A is an end view taken along arrow a in FIG. 5, FIG. 5B is an end view cut along line b-b in FIG. 5, and FIG. 6 is the part indicated by the arrow in FIG. 5 after casting. Figure 7 is an enlarged view of the part indicated by the arrow in Figure 6, Figure 8 is an enlarged view of
Fig. 9 is a perspective view showing the second and third examples of the ceramic liner, Figs. 10 to 11B show the fourth example of the ceramic liner, Fig. 10 is a plan view, and Fig. 11 is the line shown in Fig. 10. Cross-sectional view, Figure 11A is the first
11B is a cross-sectional view taken along line b-b in FIG. 11, and FIG. 12 is a cross-sectional view of a fifth example of the ceramic liner.
Corresponds to the figure. a... Branch wall, b... Opposing part, c ₁ , c ₂ ...
Width of opening, d...inner wall, e...gap, f...glass, Q...dividing surface, R...branch area, 1...cylinder head (engine parts), 6...exit, 7...
...Bifurcated pipe type exhaust passage (manifold type exhaust passage), 8...
...Cylinder head body (casting part body), 9...
... bifurcated tubular ceramic liner (manifolded ceramic liner), 10... liner body, 10 ₁ ... first cylindrical part (cylindrical part), 11 ₁ , 11 ₂ ... first,
Second cylindrical body, 12...Slit (penetration part), 16,
17...Through hole (penetration part).

Claims

[Claims for Utility Model Registration] (1) Consisting of a cast part body 8 and a manifold ceramic liner 9 that is cast into the part body 8 to form a manifold exhaust passage 7, the ceramic liner Reference numeral 9 indicates a hollow cylindrical liner body 10 and a plurality of cylindrical bodies 11 ₁ branching from the liner body 10 .
11 ₂ , in which both adjacent cylindrical bodies 11 ₁ and 11 ₂ are provided with a manifold exhaust passage. The branching region R of the ceramic liner 9 where
Penetration portions 12, 16, 17 that communicate the inside and outside of the
An engine component equipped with a manifold-type exhaust passage, characterized in that the through-holes 12, 16, and 17 are filled with molten metal during casting of the component body 8. (2) The manifold exhaust passage according to item (1) is provided, in which the openings on the inner surface side of the ceramic liner 9 of the penetration parts 12, 16, 17 are set larger than the openings on the outer surface side of the ceramic liner 9. engine parts. (3) An engine component equipped with a manifold exhaust passage according to item (1) or item (2), wherein the void e existing in the inner wall d of the penetration portions 12, 16, and 17 is filled with glass f. (4) The penetrating portion is a slit 12 formed so as to extend in series in the branch wall a of the liner main body 10 and the opposing portion b of the peripheral walls of the two adjacent cylindrical bodies 11 ₁ and 11 ₂ . An engine part equipped with a manifold exhaust passage as described in (1), (2) or (3). (5) The through-holes are through holes 16 and 17, (1)
, an engine part equipped with a manifold exhaust passage according to paragraph (2) or (3). (6) It is composed of a cast part body 8 and a bifurcated pipe-shaped ceramic liner 9 that is cast into the part body 8 to form the bifurcated pipe-shaped exhaust passage 7, and the ceramic liner 9 has a hollow cylindrical liner body 10. and a pair of cylindrical bodies 11 ₁ branching from the liner body 10,
In an engine component having a manifold exhaust passage having a manifold-type exhaust passage, the two cylinder bodies 11 1 and 11 ₂ communicate with the branch region R of the ceramic liner ₉ where they diverge, and the inside and outside of the branch region R is connected to the branch region R of the ceramic liner 9 where the two cylindrical bodies 11 ₁ and 11 2 branch. The hollow cylindrical liner body 10 includes a cylindrical portion ₁₀₁ having an elliptical cross section and an outlet 6 of the exhaust passage 7. 10 The liner body 10 within a dividing plane Q that includes a major axis of ₁ and approximately bisects the ceramic liner 9 along its exhaust passage 7.
The length of the cylindrical portion 101 is L, and the length of the cylindrical portion ₁₀₁ is l.
An engine part equipped with a manifold-type exhaust passage, characterized in that the ratio l/L of both lengths is set to 0.8≧l/L≧0.25. (7) The ceramic liner 9 includes the (1), (2), (3), and
An engine component equipped with a manifold exhaust passage according to item (4), item (5), or item (6). (8) It is composed of a cast part body 8 and a bifurcated pipe-shaped ceramic liner 9 that is cast into the part body 8 to form the bifurcated pipe-shaped exhaust passage 7, and the ceramic liner 9 is formed by a hollow cylindrical liner body 10. and a pair of cylindrical bodies 11 ₁ branching from the liner body 10,
11 ₂ , the ceramic liner 9 is made of alumina titanate, and the hollow cylindrical liner body 10 has an elliptical cross section with an outlet 6 of the exhaust passage 7. The length of the liner body ₁₀ within a dividing plane Q that includes the long axis of the cylindrical portion ₁₀₁ and divides the ceramic liner 9 into approximately two equal parts along the exhaust passage 7. is set to L, and when the length of the cylindrical portion ₁₀₁ is set to l, the ratio l/L of both lengths is set to 0.8≧l/L≧0.25. An engine part with a manifold exhaust passage.