Scroll compressor
AssigneeSamsung Electronics Co., Ltd.
InventorTakashi Uekawa
Life of this patent
Estimating the term…
Abstract
A scroll compressor includes a fixed scroll fixed inside a housing, an orbiting scroll configured to orbit engaged with the fixed scroll, a rotary shaft configured to allow the orbiting scroll to orbit by supporting the orbiting scroll with an eccentric shaft eccentric from a main shaft, and a slide bush portion installed between a bearing of the orbiting scroll and the eccentric shaft and according to a rotational speed of the rotary shaft, configured to change a pressing force of the orbiting scroll applied to the fixed scroll by allowing an eccentricity to be changed by a gas load applied to the orbiting scroll.
Claims18
A scroll compressor comprising:
- a fixed scroll fixed inside a housing;
- an orbiting scroll configured to orbit and be engaged with the fixed scroll;
- a rotary shaft configured to allow the orbiting scroll to orbit the orbiting scroll on an eccentric shaft eccentric from a main shaft;
- and
- a slide bush portion that is installed between a bearing of the orbiting scroll and the eccentric shaft and, according to a rotational speed of the rotary shaft, configured to change a pressing force of the orbiting scroll applied to the fixed scroll by allowing an eccentricity to be changed by a gas load applied to the orbiting scroll, wherein the slide bush portion comprises:
- a slide bush inserted and coupled to the bearing of the orbiting scroll;
- and
- an inner bush installed between the slide bush and the eccentric shaft, and
- wherein a center of gravity of the slide bush and the inner bush is at a position delayed in a rotational direction of the rotary shaft with respect to a straight line connecting a center of the main shaft to a center of the eccentric shaft.
A scroll compressor comprising:
- a fixed scroll fixed inside a housing;
- an orbiting scroll configured to orbit and be engaged with the fixed scroll;
- a rotary shaft configured to allow the orbiting scroll to orbit the orbiting scroll on an eccentric shaft eccentric from a main shaft;
- and
- a slide bush portion that is installed between a bearing of the orbiting scroll and the eccentric shaft and configured to change a pressing force of the orbiting scroll applied to the fixed scroll, the slide bush portion comprising:
- a slide bush inserted and coupled to the bearing of the orbiting scroll, the slide bush comprising a first slide surface, and
- an inner bush installed between the slide bush and the eccentric shaft, inserted into the eccentric shaft, coupled to the eccentric shaft, and comprising a second slide surface in contact with the first slide surface to allow the slide bush to be rotated together,
- wherein:
- according to a rotational speed of the rotary shaft, the first slide surface of the slide bush slides along the second slide surface of the inner bush by a gas load applied to the orbiting scroll, and
- an eccentricity is changed by the first slide surface of the slide bush sliding along the second slide surface of the inner bush.
Dependencies are inferred from the claim text.