Prevent turbo charger footstep bearing of abrasive wear

• Main Authors: HU QI, XU XIAOBO, ZHANG HUADA, WANG DINGGUI, ZHOU CHENGYAO, CHENG YUNRONG, GUAN QINGWU
• Format: Patent
• Language: Chinese; English
• Published: 10.08.2018
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

Prevent turbo charger footstep bearing of abrasive wear is equipped with oil wedge face and oil groove on footstep bearing's the lubricated terminal surface, the oil groove distributes between two oilwedge faces. The entrance point of the lubricating oil on the lubricated terminal surface of footstep bearing is equipped with the annular and keeps off the grain groove, the degree of depth G1 thatthe grain groove was kept off to the annular is 5~10um, groove width H1 is 0.2~0.3 mm, it stores up the grain groove to be equipped with the annular on the grain groove is kept off to the annular, thegrain groove was stored up to the annular degree of depth G2 is 0.05~0.1mm, groove width H2 is 0.2~0.5mm, be equipped with defeated grain groove on the terminal surface of oil groove, the degree of depth G3 in defeated grain groove is 0.3~0.5mm, groove width H3 is 3~5mm. 防磨粒磨损的涡轮增压器止推轴承，止推轴承的润滑端面上设有油楔面和油槽，油槽分布在两个油楔面之间。在止推轴承润滑端面上的润滑油的进口端设有环形挡粒槽，环形挡粒槽的深度G1为5～10um,槽宽H1为0.2～0.3 mm,在环形挡粒槽上设有环形储粒槽，环形储粒槽的深度G2为0.05～0.1mm，槽宽H2为0.2～