JPH02137512U

JPH02137512U -

Info

Publication number: JPH02137512U
Application number: JP4709489U
Authority: JP
Priority date: 1989-04-21
Filing date: 1989-04-21
Publication date: 1990-11-16
Anticipated expiration: 2004-03-30
Also published as: JPH0612166Y2

Description

[Brief explanation of drawings]

第１図は本考案実施例の断面部分略図、第２図
は第１図の一部切欠き−矢視部分図、第３図
は第１図の−断面部分図である。１……シリンダーヘツド、２……排気ポート、
３……排気連絡管、４……排気連絡通路、７……
鉄板、８……排気管、９……排気管ケース、１５
……インナーハウジング、１６……アウターハウ
ジング、１７……空胴、２０……冷却水ジヤケツ
ト。 FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention, FIG. 2 is a partially cut-away partial view of FIG. 1...Cylinder head, 2...Exhaust port,
3...Exhaust connecting pipe, 4...Exhaust connecting passage, 7...
Iron plate, 8...Exhaust pipe, 9...Exhaust pipe case, 15
...Inner housing, 16...Outer housing, 17...Cavity, 20...Cooling water jacket.

Claims

[Claims for Utility Model Registration] 1. A cast iron exhaust pipe extending along a plurality of cylinder heads arranged in series is provided, inlet pipe sections are provided at multiple locations on the exhaust pipe, and each inlet pipe section is connected to a cast iron exhaust pipe. It is fixed to the cylinder head via a connecting pipe, and the exhaust port in each cylinder head is connected to the exhaust passage inside the exhaust pipe via the exhaust connecting pipe and the connecting passage inside the inlet pipe section, and the outer periphery of the exhaust pipe is , covering almost the entire length of the exhaust pipe through a cavity with an exhaust pipe case made of an aluminum alloy casting, and forming a cooling water jacket inside the exhaust pipe case;
An iron plate having a hole forming a part of the communication passage is provided between the exhaust connecting pipe and the inlet pipe part in a state where both are fixed to the iron plate, and the edge of the exhaust pipe case is attached to the outer edge side of the iron plate. A water-cooled exhaust manifold assembly characterized by having fixed. (2) the exhaust pipe case includes an inner housing that faces the outer periphery of the exhaust pipe with the cavity in between, and an outer housing that faces the inner housing with the cooling water jacket in between, as separate parts; Both housings are members that extend integrally in the longitudinal direction of the exhaust pipe, and are fixed to each other at the edge near the iron plate, and a plurality of members spaced apart in the longitudinal direction of one housing are fixed to each other at the edge near the iron plate. 2. The water-cooled exhaust manifold assembly according to claim 1, wherein said portion is provided with an elongated groove extending in said longitudinal direction, and said other housing is provided with a rib that fits into said groove and is fixed by welding. . (3) The exhaust pipe case includes an inner housing that faces the outer periphery of the exhaust pipe with the cavity in between, and an outer housing that faces the inner housing with the cooling water jacket in between, as separate parts; Both housings are members that extend integrally in the longitudinal direction of the exhaust pipe, and are fixed to each other at the edges near the iron plate, and the exhaust pipe protrudes outward from one end of the exhaust pipe case. An end case of the exhaust pipe case to be formed is constituted by a separate part from the two housings, and the end case has a cooling water jacket communicating with the cooling water jacket between the two housings, It integrally has an inner wall part and an outer wall part surrounding the cooling water jacket from the exhaust pipe side and the opposite side thereof, and an end wall part surrounding the cooling water jacket from the opposite side to both the housings, 2. The water cooled exhaust manifold assembly of claim 1, wherein the surface of the end wall opposite the cooling water jacket defines a mounting seat for securing an outwardly directed flange at the end of the exhaust pipe.