JPS6278317U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is an enlarged cross-sectional view of the seal structure of a split type exhaust manifold according to the first embodiment of the present invention, Fig. 2 is a partial front view of the abutment of the seal ring in Fig. 1, and Fig. 3 is a general split type exhaust manifold seal structure. FIG. 4 is an enlarged sectional view of the seal structure of a conventional split type exhaust manifold. 10...Exhaust manifold, 11, 12
...Divided exhaust manifold, 13...
...Inner cylinder part, 14...Outer cylinder part, 15...Outer circumferential surface of inner cylinder part, 16...Inner circumferential surface of outer cylinder part, 17...Seal ring groove, 18...Seal ring, 19, 20
... Both tapered side surfaces, 22 ... Outer peripheral wall portion, 25
……gap.

Claims (1)

[Scope of utility model registration request] The exhaust manifold is divided, an inner cylinder part is formed at the end of one exhaust manifold, and an outer cylinder part is formed at the end of the other exhaust manifold, so that the inner cylinder part can be freely moved in the axial direction into the outer cylinder part. In the seal structure of a split type exhaust manifold in which a seal ring groove is formed in the inner cylinder part and a seal ring is fitted therein, the seal ring is formed on both sides of a tapered shape whose width becomes narrower as it goes inward in the radial direction. A partition characterized in that it is constructed of an annular body having a hollow cross section and an outer circumferential wall portion that is in contact with the inner peripheral surface of the outer cylinder portion, and a gap that opens toward the high pressure side is provided around the entire circumference of the annular body. Type exhaust manifold seal structure.