Industrial Lubrication and Tribology

Sreenath, A.V.; Venkatesh, S.

1968 Industrial Lubrication and Tribology

doi: 10.1108/eb052865

The detergent quality of the crankcase oil of an I.C. Engine is evaluated by studying the deposits on the piston surface after a test run. The usual method of recording the appearance, texture and location of these deposits is by photography. However, photographing a mere elevation of the piston surface from different angles is not satisfactory. A developed view of the entire piston surface is essential to have a correct idea about the deposits.

1968 Industrial Lubrication and Tribology

doi: 10.1108/eb052866

A PAPER to the Institution of Mechanical Engineers by Dr. A. A. Parry and Dr. L. A. Mitchell of the Central Electricity Generating Board Paper P2068 giving details of the authors' research on solid lubricants for use within gascooled power reactors is published with the intention of inviting written discussion. We publish the main details of this paper the complete version is available from the I.Mech.E.

1968 Industrial Lubrication and Tribology

doi: 10.1108/eb052867

KOHLER of Wisconsin, U.S.A., has doubled the number of models in its engine line from eight to sixteen. The five new cast iron vertical shaft engines are in the lower horsepower range4, 5, 6, 7 and 8. The three new horizontal shaft engines 4, 5 and 14 h.p., are fourcycle, aircooled, cast iron engines of large bore, short stroke design. The major difference between the horizontal and vertical crankshaft engines is in the lubricating system. While the horizontal engines have splash systems, two different types of positive lubrication systems are used on the vertical shaft models. The system eliminates the need for a conventional oil pump. The KV101 engine is illustrated in Fig. 1 and a cutaway diagram in Fig. 2.

1968 Industrial Lubrication and Tribology

doi: 10.1108/eb052868

IF a twist drill could be kept perfectly cool and its cutting edge lubricated, at all speeds, there would be almost no limit to the speed or the depth it could cut and drill. Improvements in cutting oils and coolants have gone a long way, and the present cutting speeds of modern automatics would not have been possible if one had to rely on the coolant of a decade ago.