Scroll fluid machine
AssigneeAnest Iwata Corporation
InventorKazuaki Sato
Life of this patent
Estimating the term…
Abstract
In a scroll fluid machine, a stationary scroll fixed to a housing engages with an orbiting scroll to form a sealed chamber between the orbiting and stationary scrolls. Fluid in the sealed chamber is compressed or decompressed with revolution of the orbiting scroll with respect to the stationary scroll. A plurality of self-rotation preventing devices are provided on the orbiting scroll to prevent the orbiting scroll from rotating on its own axis. The self-rotation preventing device comprises an eccentric tube connected to a main shaft fitting in the housing, and an eccentric shaft fitted in a bearing plate. The eccentric tube is eccentrically revolved with respect to the main shaft thereby allowing engagement of the orbiting scroll with the stationary scroll to be adjusted.
Claims10
A scroll fluid machine comprising:
- a housing:
- a driving shaft having an eccentric axial portion at one end;
- a stationary scroll having a stationary wrap and fixed to the housing:
- an orbital scroll having an orbiting wrap and being revolved with the eccentric axial portion of the driving shaft thereby allowing the orbiting wrap to engage with the stationary wrap to form a sealed chamber between the stationary and orbiting wraps;
- a bearing plate fixed to a rear surface of the orbiting scroll;
- and
- a plurality of self-rotation preventing devices on the orbiting scroll to prevent the orbiting scroll from rotating on its own axis, each of the self-rotation preventing device comprising an eccentric tube connected to a main shaft which is rotatably fitted in the housing, and an eccentric shaft which eccentrically rotates with respect to the main shaft, the orbiting scroll being axially slidable to adjust axial engagement of the orbiting scroll with respect to the stationary scroll.
A scroll fluid machine comprising:
- a housing:
- a driving shaft having an eccentric axial portion at one end;
- a stationary scroll having a stationary wrap and fixed to the housing:
- an orbiting scroll having an orbiting wrap and being revolved with the eccentric axial portion of the driving shaft thereby allowing the orbiting wrap to engage with the stationary wrap to form a sealed chamber between the stationary and orbiting wraps;
- a bearing plate fixed to a rear surface of the orbiting scroll;
- and
- a plurality of self-rotation preventing devices on the ordinary scroll to prevent the orbiting scroll from rotating on its own axis, each of the self-rotation preventing device comprising a main shaft fitted in the housing and an eccentric tube connected to an eccentric shaft, said eccentric shaft being axially slidable with said main shaft to allow engagement of the orbiting scroll with the stationary scroll to be adjusted.
Dependencies are inferred from the claim text.