| 摘要 |
FIELD: mechanical engineering; gas-turbine engines. SUBSTANCE: invention relates to design of engine supports. Proposed support of two-rotor gas-turbine engine contains high pressure rotor journal, bearing inner race fitted on surface of journal, fixing nut with limiting shoulder, oil bath space and oil space. Space of oil bath 5 is formed by inner surface of fixing nut, limiting shoulder and end face surface of journal. Ring collectors are made on journal in place of fitting of bearing inner race. Oil grooves provide communication of oil collectors with each other and with oil bath space. Height of limiting shoulder is less than distance from inner surface of fixing nut and inner diameter of end face surface of journal. Invention prevents possibility of oil getting into blind zones of support with subsequent coking and contamination of oil and oil spaces of support with coke particles and decreases kinematic heat release in bearing. EFFECT: improved reliability of engine in operation. 2 cl, 2 dwg
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