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Reciprocating compressorRelated Patent Categories: Pumps, Motor Driven, Electric Or Magnetic Motor, Reciprocating Rigid Pumping Member, Reciprocating Motor, Unitary Pump And Motor Working MemberReciprocating compressor description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070134108, Reciprocating compressor. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001] This application claims priority to Korean Application No. 10-2005-0122720, filed in Korea on Dec. 13, 2005, the entirety of which is incorporated herein by reference. BACKGROUND [0002] 1. Field [0003] The field relates to a compressor, and more particularly, to a reciprocating compressor. [0004] 2. Background [0005] In general, a compressor converts mechanical energy into compressive energy. Compressor may typically be categorized into a reciprocating type, a scroll type, a centrifugal type and a vane type. Reciprocating compressors may be further categorized into a horizontal type compressor, and a vertical type compressor. [0006] Due to the need to provide for lubrication of various components, combined with the placement and orientation of the various components of the horizontal and vertical type reciprocating compressors, additional space is required in the casing to accommodate the oil. Further, in a horizontal type reciprocating compressor, assembly is complicated due to the number of components of the oil pump, and oil is not smoothly and continuously provided when oil viscosity is high. Likewise, the vertical orientation of the components of a vertical type reciprocating compressor makes it difficult to pump oil to the various components, thus decreases reliabilities of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS [0007] The embodiments will be described in detail with reference to the following drawings in which like reference numerals refer to like elements wherein: [0008] FIG. 1 is a cross-sectional view of an exemplary horizontal type reciprocating compressor; [0009] FIG. 2 is a disassembled perspective view of an oil pumping unit in accordance with embodiments as broadly described herein; [0010] FIG. 3 illustrates an oil suction process in accordance with embodiments as broadly described herein; [0011] FIG. 4 illustrates an oil supply process in accordance with embodiments as broadly described herein; [0012] FIG. 5 is a cross-sectional view of another exemplary horizontal type reciprocating compressor incorporating an oil pumping assembly as embodied and broadly described herein; [0013] FIG. 6 is a cross-sectional view of another exemplary horizontal type reciprocating compressor incorporating an oil pumping assembly as embodied and broadly described herein; and [0014] FIGS. 7-9 are exemplary installations of a compressor incorporating an oil pumping assembly as embodied and broadly described herein. DETAILED DESCRIPTION [0015] A reciprocating compressor having an oil pump in accordance with embodiments as broadly described herein is shown in FIG. 1. Although a reciprocating compressor, and particularly a horizontal type reciprocating compressor, is presented for ease of discussion, it is well understood that an oil pumping assembly as embodied and broadly described herein may be applied to other types of compressors and/or other applications which require fluid pumping as described herein. [0016] Descriptions of reciprocating compressors and operation thereof can be found, for example, in U.S. Pat. Nos. 6,875,000, 6,875,001 and 6,863,506, which are subject to an obligation of assignment to the same entity, and the entirety of which is incorporated herein by reference. [0017] The exemplary reciprocating compressor includes a casing 100, a reciprocating motor 200 provided in the casing 100 and having a linearly-reciprocating mover 230, a compression unit 300 for compressing a fluid, such as, for example a refrigerant as a piston 320 coupled to the mover 230 reciprocate together, and a pumping unit 400 installed near the piston 320 of the compression unit 300 for pumping fluid, such as, for example, oil, contained in the casing 100. [0018] The reciprocating motor 200 includes an outer stator 210 fixed to the casing 100 and having a winding coil 211 thereon, an inner stator 220 provided at an inner side of the outer stator 210 with a predetermined gap therebetween, and a mover 230 having a magnet 231 positioned in the gap between the outer stator 210 and the inner stator 220. [0019] The mover 230 is fixedly coupled to an outer circumferential surface of a movable frame 232, the moveable frame 232 having a substantially cylindrical shape so as to support a plurality of magnets 231 arranged between the outer stator 210 and the inner stator 220. The movable frame 232 has two opened sides, with a rear side of the two opened sides having a portion which extends towards the center so as to be coupled to a piston 320 of the compression unit 300 by a bolt or other suitable fastener. A passage (not shown) for transferring a refrigerant from inside the movable frame 232 outwardly when the mover 230 reciprocates can be formed in the movable frame 232. Since the oil pumping assembly 400 operates under an air pressure generated by the movable frame 232, the passage may be formed large enough to generate an adequate air pressure. [0020] The outer stator 210 is supported by first and second fixed frames 240 and 250, respectively, coupled to both ends of the mover 230, and is fixedly coupled to the casing 100. The inner stator 220 may be press fit to an outer circumferential surface of the front, or first fixed frame 240. [0021] The first fixed frame 240 may have a disc shape having an outer diameter similar to that of the outer stator 220. A cylindrical fixing protrusion 241 may protrude back from a center of the first fixed frame 240. The inner stator 220 is inserted into an outer circumferential surface of the first fixed frame 240, and a cylinder 310 of the compression unit 300 is inserted into an inner circumferential surface of the first fixed frame 240. Continue reading about Reciprocating compressor... Full patent description for Reciprocating compressor Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Reciprocating 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 Reciprocating compressor or other areas of interest. ### Previous Patent Application: Feeding pump device of volume tube continually metering type Next Patent Application: Mini-fan Industry Class: Pumps ### FreshPatents.com Support Thank you for viewing the Reciprocating compressor patent info. IP-related news and info Results in 0.09482 seconds Other interesting Feshpatents.com categories: Qualcomm , Schering-Plough , Schlumberger , Seagate , Siemens , Texas Instruments , 174 |
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