Patent ES-8405488-A1 (ES)
Title: Oil slinger for lubrication of compressor
IPC: F25B31/00
Filed: 1983-07-07
Abstract: A centrifugal oil pump in the compressor draws oil from the sump and through an axial crankshaft passage. An oil slinging tube connected to the upper crankshaft end is supplied via this passage. Oil is slung radially to impinge the interior surfaces of the housing, to allow cooling flow downward over the housing inner surfaces. - The hollow crankshaft extension passes through the rotor of the unit electrical drive motor. The compressor housing is pref. hermetically sealed. The slinging tube can be of bent or straight form and also directs a proportion of the flow against the cylinder head for cooling. The angled location of the slinging tube provides greater angular velocity for a given crank speed, increasing the centrifugal force and thus also the cooling effect of the oil. (Dwg.0/6) EPAB- EP-107728 B A compressor (8) including a hermetically sealed housing (10,12) having a crankcase (16) with a cylinder (38) and a reciprocating piston therein, a sump (58) in a bottom portion and a vertically arranged crankshaft (18) icnuding an eccentric portion and having a pump (56) connected to its bottom portion disposed in the sump (58) for pumping lubricant from the pump upwardly through an oil passage (60) in the crankshaft (18); and an oil slinging device (68) comprising a generally elongate hollow body (68) connected at one end to the crankshaft (18) in communication with the oil passage (60); an upper portion of the generally elongate hollow body (68) being angularly disposed relative to the axis of rotation of the crankshaft (18) so that the other end of the elongated hollow body is diposed upwardly and radially outwardly from the crankshaft (18), whereby a portion of oil delivered upwardly through the oil passage (60) to the generally elongate hollow body (68) by the pump (56) is slung radially outwardsly from the crankshaft and against interior surfaces of the compressor housing, chracterised in that the crankcase (16) is located in an upper portion of the housing (10,12), the crankahsft eccentric being connected to the upper portion of the crankshaft (18) and including a bore (62) open at its lower end to the oil passage (60) and directly angularly upwardly and outwardly relaive to the crankshaft axis so that the upper end of the bore (62) is eccentric with respect to the axis of rotation of the crankshaft (18), one end of the hollow body (68) being received into the upper end of the bore (62) in axial alignment therewith andupwardly and outwardly inclined relative to the crankshaft axis.  (7pp)f - EP-107728 B A compressor (8) including a hermetically sealed housing (10,12) having a crankcase (16) with a cylinder (38) and a reciprocating piston therein, a sump (58) in a bottom portion and a vertically arranged crankshaft (18) icnuding an eccentric portion and having a pump (56) connected to its bottom portion disposed in the sump (58) for pumping lubricant from the pump upwardly through an oil passage (60) in the crankshaft (18); and an oil slinging device (68) comprising a generally elongate hollow body (68) connected at one end to the crankshaft (18) in communication with the oil passage (60); an upper portion of the generally elongate hollow body (68) being angularly disposed relative to the axis of rotation of the crankshaft (18) so that the other end of the elongated hollow body is diposed upwardly and radially outwardly from the crankshaft (18), whereby a portion of oil delivered upwardly through the oil passage (60) to the generally elongate hollow body (68) by the pump (56) is slung radially outwardly from the crankshaft and against interior surfaces of the compressor housing, chracterised in that the crankcase (16) is located in an upper portion of the housing (10,12), the crankahsft eccentric being connected to the upper portion of the crankshaft (18) and including a bore (62) open at its lower end to the oil passage (60) and directly angularly upwardly and outwardly relaive to the crankshaft axis so that the upper end of the bore (62) is eccentric with respect to the axis of rotation of the crankshaft (18), one end of the hollow body (68) being received into the upper end of the bore (62) in axial alignment therewith and upwardly and outwardly inclined relative to the crankshaft axis.