Accession Number : AD0750935

Title :   The Problem of Selecting Material for the Valve Seats of Cylinder Heads of the SMD-14 Engine,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Sukhodolskaya,E. A. ; Danilenko,E.

Report Date : 24 AUG 1972

Pagination or Media Count : 9

Abstract : Factors affecting the longevity of the valve seat pair in the SMD-14 tractor diesel are described. Material used to increase the wear resistance of this pair and for fabricating insert seats of the valves is listed. A study was made of a technique of increasing the wear resistance of the valve seat pair by reinforcing the cylinder block heads with special bushings. Requirements imposed on the material for these bushings are formulated, and results of studies on the use of certain materials are presented. It was found that the thermal stress of molten metal during casting of saddles leads to changes in the initial structure. This must be taken into account when choosing material for reinforced bushings. (Author)

Descriptors :   (*TRACTOR ENGINES, *ENGINE CYLINDERS), (*VALVES, WEAR RESISTANCE), DIESEL ENGINES, REINFORCING MATERIALS, BUSHINGS, THERMAL STRESSES, MANUFACTURING, USSR

Subject Categories : Reciprocating and Rotating Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE