Abstract:
In a compressor for refrigerant fluids, the thrust bearing for a vertical crankshaft comprises, on the one hand, an annular element of a material with a low coefficient of friction, which is rotatable with a main journal above the shaft and has a flat lower radial surface, and comprises, on the other hand, a flat radial surface machined on an upper main bearing fixed in the compressor casing. The lower surface of the annular element bears upon the flat radial surface of the upper main bearing.
Abstract:
An aluminium alloy cylinder includes a cylinder body and a cylinder bore therein. An iron layer is electrodeposited on the wall surface of the cylinder bore by means of a high cathode current density so that a multiplicity of randomly oriented channels are formed in the electrodeposited iron layer.
Abstract:
A spray powder is provided for the manufacture of layers having a high resistance to wear and burn traces on the bearing surfaces of engine parts which are subject to friction. The spray powder consists essentially of a powder mixture of about 30 to about 80 weight percent iron, about 0.1 to about 60 weight percent of at least one Group VIB metal selected from the group consisting of molybdenum and tungsten, and about 4 to about 50 weight percent boron.
Abstract:
This internal combustion piston engine structure comprising assembled cast elements, namely a cylinder block, a cylinder head, a valve gear case and an oil sump pan, is characterised by the stacking of these elements in planes parallel to the cylinder head gasket, each element receiving separately in the form of pre-assembled sub-assemblies the mechanical components inherent thereto, the stacking of said sub-assemblies being maintained by a series of common studs screwed in the cylinder block and extending in rough-cast holes through the other assembled elements.
Abstract:
A split bearing is mounted on the journal of a crankshaft by pin means which permit the bearing to move radially, but prevents it from rotating relative to the journal. Lubrication means is provided for communicating lubricating oil between the journal and bearing and also between the bearing and a supporting journal box.