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Hermetic compressorRelated Patent Categories: Pumps, Motor Driven, Electric Or Magnetic Motor, Rotary Motor And Rotary Nonexpansible Chamber Pump, Having Bearing, With LubricatorHermetic compressor description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070014678, Hermetic compressor. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of priority under 35 U.S.C. .sctn. 119 to Korean Patent Application No. 2005-62569, filed Jun. 12, 2005, the entire contents of which is incorporated herein by reference. This application may also be related to commonly owned U.S. Pat. No. 6,893,233, as well as to commonly owned U.S. patent application Ser. No. 11/199,170, filed Aug. 9, 2005, the entire contents of each of which are herein incorporated by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a compressor, and, more particularly, to a compressor in which a low speed motor is employed to reduce drive noise while preventing degradation in compression capacity. [0004] 2. Description of the Related Art [0005] Generally, a refrigeration cycle employed in an air conditioner or refrigerator uses a compressor to suction and compress a low-pressure refrigerant (thereby generating a high pressure refrigerant) and to discharge the compressed high-pressure refrigerant, a condenser to condense the refrigerant discharged from the compressor, an expansion member to expand the condensed refrigerant delivered from the condenser, and an evaporator in which the expanded refrigerant delivered from the expansion member exchanges heat with the atmosphere via evaporation. The compressor, condenser, expansion member, and evaporator are interconnected by use of refrigerant pipes to form a closed circuit. [0006] In consideration of the capacity of the refrigeration cycle, the motor for use in the compressor of the refrigeration cycle is mainly a two pole motor having a commercial rotational speed of 3000 rpm to 3600 rpm. [0007] However, the conventional refrigeration cycle compressor has a problem in that the high speed two pole motor generates excessive drive noise due to vibration during high speed rotation thereof. [0008] Although a low speed four pole motor having a commercial rotational speed of 1500 rpm to 1800 rpm may be substituted for the two pole motor to reduce the drive noise of the compressor, the low speed motor exhibits only low compression capacity due to its low RPM, inhibiting effective implementation of a refrigerant compression operation. SUMMARY OF THE INVENTION [0009] Therefore, the present invention has been made in order to solve the above problems, and it is an aspect of the invention to provide a compressor in which a low speed motor is employed to reduce drive noise while preventing degradation in compression capacity. [0010] Accordingly, one aspect of the present invention provides a hermetic compressor, the hermetic compressor including a hermetic container; a compression unit arranged in the hermetic container and including a refrigerant compression chamber; a drive unit configured to provide a refrigerant compression power, the drive unit including a low speed motor having at least four poles; and a charger configured to deliver a refrigerant remaining in the hermetic container outside the refrigerant compression chamber into the refrigerant compression chamber. The charger may further include a fan configured to rotate upon receiving a driving force from the drive unit, and a channel configured to deliver the refrigerant blown by the fan into the refrigerant compression chamber. [0011] Yet another non-limiting aspect of the present invention provides hermetic compressor that includes: a hermetic container; means for compressing a refrigerant; means for providing a compression power while minimizing noise; and means for delivering a refrigerant from the hermetic container into the means for compressing. [0012] A third non-limiting aspect of the present invention relates to a hermetic compressor, the hermetic compressor including: at least one hermetic container; at least one compression unit including a compression chamber; at least one motor configured to provide power; and at least one super-charger. The super-charger may also include: a super-charge fan configured to rotate, and a super-charge channel configured to deliver refrigerant blown by the super-charge fan into the compression chamber. [0013] Additional aspects and/or advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS [0014] These and other aspects and advantages of the invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, of which: [0015] FIG. 1 is an elevational view of a hermetic compressor in section according to an embodiment of the present invention; [0016] FIG. 2 is an exploded perspective view of a super-charger according to an embodiment of the present invention; [0017] FIG. 3 is an elevational view of the super-charger in section, showing the operation of the super-charger when a piston performs a suction stroke; [0018] FIG. 4 is an elevational view of the super-charger in section, showing the operation of the super-charger when a piston performs a compression stroke; and [0019] FIG. 5 is an elevational view of the super-charger in section taken along line A-A of FIG. 3. DETAILED DESCRIPTION OF THE EMBODIMENTS Continue reading about Hermetic compressor... Full patent description for Hermetic compressor Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Hermetic compressor patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Hermetic compressor or other areas of interest. ### Previous Patent Application: Pump Next Patent Application: Hydraulic metering device Industry Class: Pumps ### FreshPatents.com Support Thank you for viewing the Hermetic compressor patent info. 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