Vacuum preventing device of scroll compressor
AssigneeLG Electronics Inc.
InventorIn-Hwe Koo
Life of this patent
Estimating the term…
Abstract
A vacuum preventing device of a scroll compressor includes: a chamber formed at one side of a fixed scroll and having a suction pressure hole, a middle pressure hole and a discharge pressure hole communicating with a suction pressure zone, a middle pressure zone and a discharge pressure zone, each formed at a certain portion of an inner circumferential surface; an open and shut member installed inside the chamber and selectively communicating the discharge pressure hole and the suction pressure hole by virtue of a gas pressure of the middle pressure zone and an elastic force of a spring; and a gas leakage preventing unit for preventing a gas leakage in a normal operation by reducing a clearance between an inner wall of the chamber positioned at the side of the discharge pressure hole and the open and shut member.
Claims18
A vacuum preventing device of a scroll compressor comprising:
- a chamber formed at one side of a fixed scroll and having a suction pressure hole, a middle pressure hole and a discharge pressure hole at a certain portion of its inner circumferential surface to communicate with a suction pressure zone, a middle pressure zone and a discharge pressure zone;
- an open and shut member installed inside the chamber and selectively allowing the discharge pressure hole and the suction pressure hole to communicate with each other by virtue of a gas pressure of the middle pressure zone and an elastic force of a spring;
- and
- a compression gas receiving part formed at a lower surface of the open and shut member facing the middle pressure hole in order to receive portion of the compression gas of the middle pressure zones,
- wherein the compression gas receiving part is positioned inclined toward the suction pressure zone on the basis of a vertical central line of the open and shut member.
A vacuum preventing device of a scroll compressor comprising:
- a chamber formed at one side of a fixed scroll and having a suction pressure hole, a middle pressure hole and a discharge pressure hole at a certain portion of its inner circumferential surface to communicate with a suction pressure zone, a middle pressure zone and a discharge pressure zone;
- an open and shut member installed inside the chamber and selectively allowing the discharge pressure hole and the suction pressure hole to communicate with each other by virtue of a gas pressure of the middle pressure zone and an elastic force of a spring;
- and
- a compression gas receiving part formed at a lower surface of the open and shut member facing the middle pressure hole in order to a receive portion of the compression gas of the middle pressure zone,
- wherein the compression gas receiving part is opened inwardly toward a center of the fixed scroll.
A vacuum preventing device of a scroll compressor comprising:
- a chamber formed at one side of a fixed scroll and having a suction pressure hole, a middle pressure hole and a discharge pressure hole at a certain portion of its inner circumferential surface to communicate with a suction pressure zone, a middle pressure zone and a discharge pressure zone;
- an open and shut member installed inside the chamber and selectively allowing the discharge pressure hole and the suction pressure hole to communicate with each other by virtue of a gas pressure of the middle pressure zone and an elastic force of a spring;
- and
- a compression gas receiving part formed at a lower surface of the open and shut member facing the middle pressure hole in order to receive a portion of the compression gas of the middle pressure zone,
- wherein a gas pressurizing area of the suction gas receiving recess is smaller than that of the compression gas receiving part.
A vacuum preventing device of a scroll compressor comprising:
- a chamber formed at one side of a fixed scroll and having a suction pressure hole, a middle pressure hole and a discharge pressure hole at a certain portion of its inner circumferential surface to communicate with a suction pressure zone, a middle pressure zone and a discharge pressure zone;
- an open and shut member installed inside the chamber and selectively allowing the discharge pressure hole and the suction pressure hole to communicate with each other by virtue of a gas pressure of the middle pressure zone and an elastic force of a spring;
- and
- a compression gas receiving part formed at a lower surface of the open and shut member facing the middle pressure hole in order to receive a portion of the compression gas of the middle pressure zone,
- wherein the suction gas receiving recess is positioned inclined toward the suction pressure zone on the basis of the vertical central line of the open and shut member.
A vacuum preventing device of a scroll compressor comprising:
- a chamber formed at one side of a fixed scroll and having a suction pressure hole, a middle pressure hole and a discharge pressure hole at a certain portion of its inner circumferential surface to communicate with a suction pressure zone, a middle pressure zone and a discharge pressure zone;
- an open and shut member installed inside the chamber and selectively allowing the discharge pressure hole and the suction pressure hole to communicate with each other by virtue of a gas pressure of the middle pressure zone and an elastic force of a spring;
- and
- a compression gas receiving part formed at a lower surface of the open and shut member facing the middle pressure hole in order to receive a portion of the compression gas of the middle pressure zone,
- wherein the suction gas receiving recess is opened outwardly toward an outer circumference of the fixed scroll.
Dependencies are inferred from the claim text.