BEARING OIL SUPPLY DEVICE AND EXHAUST TURBINE SUPERCHARGER

• Main Authors: FUTAE TAKAYA, ISHII YUTA, KOJIMA YUYA
• Format: Patent
• Language: English; Japanese
• Published: 02.08.2018
• Subjects: BEARINGS; BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; LUBRICATING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To enable lube oil to supply an appropriate amount in a bearing oil supply device and an exhaust turbine supercharger.SOLUTION: A bearing oil supply device 36 comprises: a hollow shape housing 15; and journal bearings 21 and 22 that rotatably support a rotation axis 14 disposed in the interior of the housing 15, in which a third supply passage 43 and a fourth supply passage 44 for supplying lube oil toward outer peripheral surfaces 21b and 22b of the journal bearings 21 and 22; a sixth supply passage 46 for supplying lube oil toward a space part 16A between the journal bearings 21 and 22; and a guide part for guiding the lube oil supplied to the space part 16A from the sixth supply passage 46 toward inner peripheral surfaces 21c and 22c of the journal bearings 21 and 22, are provided.SELECTED DRAWING: Figure 2 【課題】軸受の給油装置および排気タービン過給機において、適切な量の潤滑油を供給可能とする。【解決手段】中空形状をなすハウジング１５と、ハウジング１５の内部に配置される回転軸１４を回転可能に支持するジャーナル軸受２１，２２とを備える軸受装置３６において、ジャーナル軸受２１，２２の外周面２１ｂ，２２ｂに向けて潤滑油を供給する第三供給通路４３及び第四供給通路４４と、ジャーナル軸受２１，２２の間の空間部１６Ａに向けて潤滑油を供給する第六供給通路４６と、第六供給通路４６から空間部１６Ａに供給された潤滑油をジャーナル軸受２１，２２の内周面２１ｃ，２２ｃに向けて案内する案内部とを設ける。【選択図】図２