Patent · US Active

Backflow preventing apparatus for compressor

US7585164B2 · kind B2 · utility

7Cited by

11References

28Claims

0Family size

Assignee

LG ELECTRONICS INC. · KR

Inventors

Young-Se Joo · Daega-myeon, KR
Na Ra Han · Daega-myeon, KR

Key dates

Filing date	Apr 5, 2007
Grant date	Sep 8, 2009
Priority date	—
Expiry date	Jun 6, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7903
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A backflow preventing apparatus for a scroll compressor is disclosed, in which a check valve is hinge-coupled to a valve seat, or is coupled to a valve seat so as to be elastically opened and closed. The check valve is opened and closed by a pressure difference and its own weight or elasticity, thereby having a quick response speed. The check valve prevents discharged refrigerant from backflowing, thus enhancing efficiency of the compressor. Further, since the check valve when opened is prevented from colliding with a valve housing by a valve stopping surface or a retainer, discharge noise from the compressor is reduced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.