| 摘要 |
A sealing structure includes a first and a second passage-forming member (33; 40) having respective surfaces where fluid inlet ports (33a-33d) and fluid outlet ports (41a-41d), or vice versa, are respectively open, and an elastic member (50) interposed between the surfaces and including: a plate-like body (55) which has an inlet-side and an outlet-side surface and through which through-holes (51a-51d) are perpendicularly formed such that the inlet and outlet ports are communicated via the through-holes and open ends of the inlet and outlet ports are smaller than those of the through-holes; a first protruding portion (56; 57) protruding from one of the inlet- and outlet-side surfaces in an axial direction (B) of the through-holes to contact the first passage-forming member and form inner circumferential surfaces encircling the through-holes; and a second protruding portion (57; 56) axially protruding from the other surfaces toward the second passage-forming member to form inner circumferential surfaces encircling the through-holes. The inner circumferential surface of one of the first protruding portion and those of the corresponding second protruding portion and through-hole are continuous to form a smooth surface. A part of each of the first and second protruding portions between each two adjacent through-holes constitutes an axially extending partition wall separating the adjacent through-holes.
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