Claims
- 1. A scroll type compressor comprising:
- a shaft having an axis and being rotatable thereon upon receiving a rotative force and having a crank portion which is eccentric to the axis of the shaft;
- a movable scroll supported rotatively by the crank for orbital movement around the axis of the shaft;
- a fixed scroll for forming a working chamber with the movable scroll, which is engaged with the movable scroll in a manner that the fixed scroll is movable away from the movable scroll;
- biasing means for moving the fixed scroll toward the movable scroll;
- controlling means for controlling a biasing force of the biasing means; and
- supporting means, engaged with the movable scroll, for holding the movable scroll at a relative position with respect to the fixed scroll, to keep it from moving apart from, and also from moving excessively towards the fixed scroll.
- 2. A scroll type compressor according to claim 1, wherein the supporting means includes:
- a fixed supporting member having a fixed supporting surface; and
- a movable supporting member having a movable supporting surface which is movable with the movable scroll and is engaged with the the fixed supporting surface.
- 3. A scroll type compressor according to claim 1, wherein the biasing means includes a spring disposed in a discharge chamber which is formed outside of the fixed scroll.
- 4. A scroll type compressor according to claim 3, wherein the controlling means includes pressure control means for controlling pressure within the discharge chamber.
Priority Claims (2)
Number |
Date |
Country |
Kind |
1-23574 |
Jan 1989 |
JPX |
|
1-226263 |
Aug 1989 |
JPX |
|
Parent Case Info
This application is a divisional application of U.S. application Ser. No. 07/474,562, filed Jan. 31, 1990, which is abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (1)
Number |
Date |
Country |
55-46046 |
Mar 1980 |
JPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
472562 |
Jan 1990 |
|