Back to results
US 10,648,511 B2Granted
Seal structure and turbocharger
AssigneeIHI Corporation
InventorsKuniaki Iizuka, Takashi Yoshida
Life of this patent
Estimating the term…
Abstract
A seal structure includes a rotary shaft that is provided inside a housing, a metal-made surrounding portion of the housing that surrounds the rotary shaft in a radial direction of the rotary shaft, and a resin-made seal member that faces an inner circumferential surface of the surrounding portion and rotates together with the rotary shaft.
Claims8
A seal structure comprising:
- a rotary shaft that is provided inside a housing;
- a metal-made surrounding portion of the housing that surrounds the rotary shaft in a radial direction of the rotary shaft;
- and
- a resin-made seal member that faces an inner circumferential surface of the surrounding portion and rotates together with the rotary shaft,
- wherein the seal member includes a plurality of toric portions protruding toward the surrounding portion, and a groove portion is provided between the toric portions, and
- wherein during rotation of the rotary shaft, only a part of the toric portions in a circumferential direction is chipped off so as to form a clearance between the seal member and the surrounding portion.
3 more elements
A seal structure comprising:
- a rotary shaft that is provided inside a housing;
- a surrounding portion of the housing that surrounds the rotary shaft in a radial direction of the rotary shaft;
- and
- a resin-made seal member that is attached to an inner circumferential surface of the surrounding portion and faces the rotary shaft or a cylindrical portion rotating together with the rotary shaft,
- wherein the seal member includes a plurality of toric portions protruding toward the surrounding portion, and a groove portion is provided between the toric portions, and
- wherein during rotation of the rotary shaft, only a part of the toric portions in a circumferential direction is chipped off so as to form a clearance between the seal member and the surrounding portion.
3 more elements
Dependencies are inferred from the claim text.