| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sealing device 1 for a rotary engine capable of preventing a twist and a cut from occurring on a seal ring 5 without impairing the assemblage of the seal ring 5 and follow-up capability of a metal ring oil seal 2 in the sealing device 1 installed in the rotor 11 of the rotary engine and sealing a clearance between the rotor 11 and a side housing 13. <P>SOLUTION: This sealing device comprises the metal ring oil seal 2 installed in an installation groove 12 provided in the rotor 11 and fitted closely to the side housing 13, a spring means 3 pressing the metal ring oil seal 2 against the side housing 13, and the seal ring 5 of a rubber-like elastic material installed in the groove provided in the side face of the metal ring oil seal 2 and fitted closely to the rotor 11. The cross sectional shape of the seal ring 5 is formed such that the side of the groove 4 seated on a groove bottom part is formed in a rectangular shape in cross section along a groove shape and formed so as to provide a flat seating surface 5c. The side thereof in close-contact with the rotor 11 is formed in an arc shape in cross section mainly by an O-ring. <P>COPYRIGHT: (C)2004,JPO |
