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专利名称：OIL PUMP FOR A REFRIGERATING
COMPRESSOR
发明人：KLEIN, FABIO HENRIQUE,JOVITA, LUIZ
FABIANO,LOPES, ANDREA
申请号：BR2007000290申请日：20071024
公开号：WO2008052297A8公开日：20091029
摘要：Oil pump for hermetic refrigerating compressor comprising: a tubular sleeve(20) having an upper portion (21) affixed to at least one of the parts of crankshaft (10)and rotor (6), and a lower portion (22) having a lower end (22a) immersed in the lubricantoil, said tubular sleeve (20) being provided with an inner surface (23) presenting, along ateast part of its longitudinal extension, at Least one helical groove (24) upwardlyextending from the lower end; and a pump body (30) disposed inside the tubular sleeveand defining, with the adjacent helical groove of the tubular sleeve, a lubricant oilascending channel (C), said pump body presenting a lower end portion (31) mounted toone of the parts of shell, cylinder block and stator, so as to b freely displaced within thetubular sleeve, in radial directions orthogonal to the crankshaft and rotatively locked inrelation to the rotor.
申请人：WHIRLPOOL S.A.,KLEIN, FABIO HENRIQUE,JOVITA, LUIZ FABIANO,LOPES,ANDREA
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