The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 2013
Filed:
Mar. 31, 2008
Sang-myung Byun, Changwon-shi, KR;
Seung-jun Lee, Changwon-shi, KR;
Yun-hi Lee, Gimhae-shi, KR;
Yoon-sung Choi, Seoul, KR;
Sang-Myung Byun, Changwon-shi, KR;
Seung-Jun Lee, Changwon-shi, KR;
Yun-Hi Lee, Gimhae-shi, KR;
Yoon-Sung Choi, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
The present invention provides a 2 stage rotary compressor () including a hermetic container (), a 2 stage compression assembly provided in the hermetic container, wherein a low pressure compression assembly (), a middle plate () and a high pressure compression assembly () are successively stacked from any one of upper and lower portions, a first discharge port () for discharging middle pressure refrigerant compressed in the low pressure compression assembly () a second discharge port () for discharging high pressure refrigerant compressed in the high pressure compression assembly () and a third discharge port () positioned at any one of the upper and lower portions of the 2 stage compression assembly to discharge high pressure refrigerant compressed in the 2 stage compression assembly to the hermetic container (), wherein an area of the third discharge port () is larger than 0.5 times of an area of the first discharge port and smaller than 1.0 times thereof. As a volume flow of refrigerant compressed in the low pressure compression assembly () determines a volume flow of refrigerant compressed in the entire 2 stage compression assembly, a size of the third discharge port discharging refrigerant compressed in the 2 stage compression assembly is preferably optimized at a ratio with respect to a size of the first discharge port (). Therefore, the size of the third discharge port () can be optimized to suppress noise of the compressor.