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US 7,404,706 B2Granted
Scroll fluid machine having oil-supply holes being formed through a reinforcement bearing plate on a rear surface of the orbiting scroll
AssigneeAnest Iwata Corporation
InventorsHidetoshi Ishikawa, Masaru Tsuchiya
Life of this patent
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Abstract
A scroll fluid machine comprises a fixed scroll, an orbiting scroll and a plurality of self-rotation preventing device for preventing the orbiting scroll from rotating on its own axis. On the rear surface of the orbiting scroll, a reinforcement bearing plate is fixed with a central bolt and an outer circumferential bolt. A follower of the self-rotation preventing device is provided in the reinforcement bearing plate. An oil-supply hole is formed through the reinforcement bearing plate to supply oil to the follower.
Claims5
A scroll fluid machine comprising:
- a housing;
- a driving shaft having an eccentric axial portion at one end;
- an orbiting scroll rotatably mounted around the eccentric axial portion of the driving shaft and comprising an orbiting end plate having an orbiting wrap on a front surface;
- and
- a fixed scroll fixed to the housing and comprising a fixed end plate having a fixed wrap;
- a plurality of self-rotation preventing devices mounted on a rear surface of the orbiting end plate to prevent the orbiting scroll from rotating on its own axis, each of said plurality of self-rotation preventing devices comprising a support, and a support-oil-supply hole being formed through a reinforcement bearing plate to supply oil to the support;
- and
- the reinforcement bearing plate removably provided on the rear surface of the orbiting end plate and having a follower of each of said plurality of self-rotation preventing devices, and a follower-oil-supply hole being formed though the reinforcement bearing plate to supply oil to the follower.
5 more elements
Dependencies are inferred from the claim text.