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US 6,688,865 B1Granted
Vane type fluid machinery having a deformable seal portion on the vane
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsKenji Matsumoto, Yasunobu Kawakami, Kensuke Honma, Toshihiro Tsutsui
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Abstract
A vane type fluid machine includes: a casing; a rotor rotating in the casing; and a plurality of vanes supported by the rotor to slide on an inner surface of the casing. A seal portion of each vane is formed to be elastically deformable so as to slide on the inner surface of the casing while bending backward of a rotational direction of the rotor. Therefore, an improved structure of the seal portion of each vane secures good sealing performance even if machining accuracy of the inner surface of the casing is alleviated.
Claims8
A vane type fluid machine, comprising
- a casing;
- a rotor rotating in the casing;
- a plurality of vanes supported by the rotor to slide on an inner surface of the casing, and
- a supply mechanism for supplying a high temperature fluid as an operating medium,
- wherein a seal portion of each vane is formed to be elastically deformable so as to slide on said inner surface of the casing while bending backward of a rotational direction of the rotor,
- wherein said seal portion of each vane is made of heat-resisting synthetic rubber,
- wherein a solid lubricating layer is provided on a surface of said seal portion of each vane, and
- wherein said solid lubricating layer is formed by an aggregate of a plurality of small pieces attached to the surface of said seal portion in a spread manner.
5 more elements
Dependencies are inferred from the claim text.